{"title":"Broadband Notch Filters","description":"\u003cp\u003eReduce a selected broad wavelength region while transmitting light outside it. These filters provide different rejection profiles for spectral shaping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Compare the rejected region, remaining transmission windows and required attenuation. These broad notches are not narrow laser-line Raman rejection filters.\u003c\/p\u003e","products":[{"product_id":"bh-n20","title":"BH-N20 485-603 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e485-603 nm nominal rejection-region broadband notch filter (BH-N20)\u003c\/h2\u003e\n\u003cp\u003eBH-N20 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 493-588 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 391-479 nm; 609-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 493-588 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.8% at 693 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 483.5 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 602.9 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 385-483 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/BH-N20.html\" title=\"BH-N20 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about BH-N20\u003c\/h2\u003e\n\u003ch3\u003eWhat high-transmission regions should I compare for BH-N20?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 391-479 nm; 609-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould a broad-response detector see another band through BH-N20?\u003c\/h3\u003e\n\u003cp\u003eFor BH-N20, additional regions reach at least 50% transmission at approximately 385-483 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Sharp (\u003c=20nm)","offer_id":48516674420991,"sku":"BH-N20","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bh-n20-spectrum.jpg?v=1778712986"},{"product_id":"bh-n19","title":"BH-N19 452-616 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e452-616 nm nominal rejection-region broadband notch filter (BH-N19)\u003c\/h2\u003e\n\u003cp\u003eBH-N19 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 466-605 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 393-446 nm; 623-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 466-605 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.3% at 775 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 451.8 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 617.8 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 386-451 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/BH-N19.html\" title=\"BH-N19 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about BH-N19\u003c\/h2\u003e\n\u003ch3\u003eWhich part of the spectrum is most useful when choosing BH-N19?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 393-446 nm; 623-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eWhat should I check beyond the main transmission region of BH-N19?\u003c\/h3\u003e\n\u003cp\u003eFor BH-N19, additional regions reach at least 50% transmission at approximately 386-451 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Sharp (\u003c=20nm)","offer_id":48516674453759,"sku":"BH-N19","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bh-n19-spectrum.jpg?v=1778712987"},{"product_id":"bh-n18","title":"BH-N18 447-551 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e447-551 nm nominal rejection-region broadband notch filter (BH-N18)\u003c\/h2\u003e\n\u003cp\u003eBH-N18 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 458-533 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 380-441 nm; 553-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 458-533 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.7% at 745 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 446.0 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 548.4 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-445 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/BH-N18.html\" title=\"BH-N18 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about BH-N18\u003c\/h2\u003e\n\u003ch3\u003eWhere does BH-N18 transmit at least 80% in the measured curve?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 380-441 nm; 553-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould BH-N18 pass light outside its main band?\u003c\/h3\u003e\n\u003cp\u003eFor BH-N18, additional regions reach at least 50% transmission at approximately 380-445 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Blue \/ Standard (\u003e20nm)","offer_id":48516674486527,"sku":"BH-N18","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bh-n18-spectrum.jpg?v=1778712988"},{"product_id":"bh-n17","title":"BH-N17 477-583 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e477-583 nm nominal rejection-region broadband notch filter (BH-N17)\u003c\/h2\u003e\n\u003cp\u003eBH-N17 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 492-562 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 396-473 nm; 589-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 492-562 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 94.9% at 669 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 477.4 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 582.8 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 391-477 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/BH-N17.html\" title=\"BH-N17 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about BH-N17\u003c\/h2\u003e\n\u003ch3\u003eWhat high-transmission regions should I compare for BH-N17?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 396-473 nm; 589-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould a broad-response detector see another band through BH-N17?\u003c\/h3\u003e\n\u003cp\u003eFor BH-N17, additional regions reach at least 50% transmission at approximately 391-477 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516674715903,"sku":"BH-N17","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bh-n17-spectrum.jpg?v=1778712989"},{"product_id":"m79516","title":"M79516 462-615 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e462-615 nm nominal rejection-region broadband notch filter (M79516)\u003c\/h2\u003e\n\u003cp\u003eM79516 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 475-598 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 380-384 nm; 394-456 nm; 625-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 475-598 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.3% at 727 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 461.7 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 618.0 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-461 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M79516.html\" title=\"M79516 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M79516\u003c\/h2\u003e\n\u003ch3\u003eWhich part of the spectrum is most useful when choosing M79516?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 380-384 nm; 394-456 nm; 625-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eWhat should I check beyond the main transmission region of M79516?\u003c\/h3\u003e\n\u003cp\u003eFor M79516, additional regions reach at least 50% transmission at approximately 380-461 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516674781439,"sku":"M79516","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m79516-spectrum.jpg?v=1778712989"},{"product_id":"m32815","title":"M32815 490-585 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e490-585 nm nominal rejection-region broadband notch filter (M32815)\u003c\/h2\u003e\n\u003cp\u003eM32815 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 501-564 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 393-482 nm; 588-731 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 501-564 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 94.7% at 613 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 486.6 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 581.6 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 382-486 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M32815.html\" title=\"M32815 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M32815\u003c\/h2\u003e\n\u003ch3\u003eWhat high-transmission regions should I compare for M32815?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 393-482 nm; 588-731 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould a broad-response detector see another band through M32815?\u003c\/h3\u003e\n\u003cp\u003eFor M32815, additional regions reach at least 50% transmission at approximately 382-486 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Sharp (\u003c=20nm)","offer_id":48516674814207,"sku":"M32815","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m32815-spectrum.jpg?v=1778712990"},{"product_id":"m11114","title":"M11114 470-572 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e470-572 nm nominal rejection-region broadband notch filter (M11114)\u003c\/h2\u003e\n\u003cp\u003eM11114 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 483-552 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 392-465 nm; 578-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 483-552 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.5% at 654 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 469.4 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 572.0 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 387-469 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M11114.html\" title=\"M11114 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M11114\u003c\/h2\u003e\n\u003ch3\u003eWhere does M11114 transmit at least 80% in the measured curve?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 392-465 nm; 578-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould M11114 pass light outside its main band?\u003c\/h3\u003e\n\u003cp\u003eFor M11114, additional regions reach at least 50% transmission at approximately 387-469 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Sharp (\u003c=20nm)","offer_id":48516674846975,"sku":"M11114","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m11114-spectrum.jpg?v=1778712991"},{"product_id":"m12613","title":"M12613 472-612 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e472-612 nm nominal rejection-region broadband notch filter (M12613)\u003c\/h2\u003e\n\u003cp\u003eM12613 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 490-594 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 409-467 nm; 619-727 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 380-399 nm; 490-594 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.5% at 682 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 472.1 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 611.7 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 407-472 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M12613.html\" title=\"M12613 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M12613\u003c\/h2\u003e\n\u003ch3\u003eWhich part of the spectrum is most useful when choosing M12613?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 409-467 nm; 619-727 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eWhat should I check beyond the main transmission region of M12613?\u003c\/h3\u003e\n\u003cp\u003eFor M12613, additional regions reach at least 50% transmission at approximately 407-472 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675043583,"sku":"M12613","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m12613-spectrum.jpg?v=1778712992"},{"product_id":"p79712","title":"P79712 470-639 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e470-639 nm nominal rejection-region broadband notch filter (P79712)\u003c\/h2\u003e\n\u003cp\u003eP79712 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 492-612 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 390-468 nm; 652-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 492-612 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.5% at 707 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 474.0 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 642.1 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 385-473 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/P79712.html\" title=\"P79712 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about P79712\u003c\/h2\u003e\n\u003ch3\u003eWhich part of the spectrum is most useful when choosing P79712?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 390-468 nm; 652-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eWhat should I check beyond the main transmission region of P79712?\u003c\/h3\u003e\n\u003cp\u003eFor P79712, additional regions reach at least 50% transmission at approximately 385-473 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675076351,"sku":"P79712","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/p79712-spectrum.jpg?v=1778712993"},{"product_id":"p79711","title":"P79711 470-630 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e470-630 nm nominal rejection-region broadband notch filter (P79711)\u003c\/h2\u003e\n\u003cp\u003eP79711 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 485-612 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 389-467 nm; 639-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 485-612 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.7% at 740 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 472.2 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 631.7 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-472 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/P79711.html\" title=\"P79711 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about P79711\u003c\/h2\u003e\n\u003ch3\u003eWhere does P79711 transmit at least 80% in the measured curve?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 389-467 nm; 639-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould P79711 pass light outside its main band?\u003c\/h3\u003e\n\u003cp\u003eFor P79711, additional regions reach at least 50% transmission at approximately 380-472 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675109119,"sku":"P79711","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/p79711-spectrum.jpg?v=1778712994"},{"product_id":"p12610","title":"P12610 461-625 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e461-625 nm nominal rejection-region broadband notch filter (P12610)\u003c\/h2\u003e\n\u003cp\u003eP12610 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 471-601 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 388-455 nm; 631-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 471-601 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.8% at 736 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 459.3 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 622.6 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-459 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/P12610.html\" title=\"P12610 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about P12610\u003c\/h2\u003e\n\u003ch3\u003eWhat high-transmission regions should I compare for P12610?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 388-455 nm; 631-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould a broad-response detector see another band through P12610?\u003c\/h3\u003e\n\u003cp\u003eFor P12610, additional regions reach at least 50% transmission at approximately 380-459 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675338495,"sku":"P12610","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/p12610-spectrum.jpg?v=1778712994"},{"product_id":"p79909","title":"P79909 460-690 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e460-690 nm nominal rejection-region broadband notch filter (P79909)\u003c\/h2\u003e\n\u003cp\u003eP79909 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 478-669 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 388-453 nm; 696-770 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 478-669 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.3% at 719 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 459.3 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 688.1 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-459 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/P79909.html\" title=\"P79909 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about P79909\u003c\/h2\u003e\n\u003ch3\u003eWhat high-transmission regions should I compare for P79909?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 388-453 nm; 696-770 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould a broad-response detector see another band through P79909?\u003c\/h3\u003e\n\u003cp\u003eFor P79909, additional regions reach at least 50% transmission at approximately 380-459 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675404031,"sku":"P79909","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/p79909-spectrum.jpg?v=1778712996"},{"product_id":"m79508","title":"M79508 460-600 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e460-600 nm nominal rejection-region broadband notch filter (M79508)\u003c\/h2\u003e\n\u003cp\u003eM79508 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 472-580 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 385-453 nm; 608-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 472-580 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.6% at 706 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 457.8 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 600.2 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 381-457 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M79508.html\" title=\"M79508 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M79508\u003c\/h2\u003e\n\u003ch3\u003eWhere does M79508 transmit at least 80% in the measured curve?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 385-453 nm; 608-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould M79508 pass light outside its main band?\u003c\/h3\u003e\n\u003cp\u003eFor M79508, additional regions reach at least 50% transmission at approximately 381-457 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675436799,"sku":"M79508","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m79508-spectrum.jpg?v=1778712996"},{"product_id":"p12607","title":"P12607 459-645 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e459-645 nm nominal rejection-region broadband notch filter (P12607)\u003c\/h2\u003e\n\u003cp\u003eP12607 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 471-615 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 380-452 nm; 652-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 471-615 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.6% at 665 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 457.0 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 642.4 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-456 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/P12607.html\" title=\"P12607 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about P12607\u003c\/h2\u003e\n\u003ch3\u003eWhich part of the spectrum is most useful when choosing P12607?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 380-452 nm; 652-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eWhat should I check beyond the main transmission region of P12607?\u003c\/h3\u003e\n\u003cp\u003eFor P12607, additional regions reach at least 50% transmission at approximately 380-456 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675633407,"sku":"P12607","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/p12607-spectrum.jpg?v=1778712997"},{"product_id":"m79506","title":"M79506 459-612 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e459-612 nm nominal rejection-region broadband notch filter (M79506)\u003c\/h2\u003e\n\u003cp\u003eM79506 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 474-586 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 384-455 nm; 626-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 474-586 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.3% at 705 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 459.7 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 614.0 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-459 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M79506.html\" title=\"M79506 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M79506\u003c\/h2\u003e\n\u003ch3\u003eWhat high-transmission regions should I compare for M79506?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 384-455 nm; 626-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould a broad-response detector see another band through M79506?\u003c\/h3\u003e\n\u003cp\u003eFor M79506, additional regions reach at least 50% transmission at approximately 380-459 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675666175,"sku":"M79506","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m79506-spectrum.jpg?v=1778712998"},{"product_id":"m4905","title":"M4905 450-630 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e450-630 nm nominal rejection-region broadband notch filter (M4905)\u003c\/h2\u003e\n\u003cp\u003eM4905 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 464-597 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 385-441 nm; 637-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 464-597 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.8% at 761 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 446.9 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 626.9 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-446 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M4905.html\" title=\"M4905 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M4905\u003c\/h2\u003e\n\u003ch3\u003eWhich part of the spectrum is most useful when choosing M4905?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 385-441 nm; 637-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eWhat should I check beyond the main transmission region of M4905?\u003c\/h3\u003e\n\u003cp\u003eFor M4905, additional regions reach at least 50% transmission at approximately 380-446 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675698943,"sku":"M4905","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m4905-spectrum.jpg?v=1778712999"},{"product_id":"m4904","title":"M4904 455-610 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e455-610 nm nominal rejection-region broadband notch filter (M4904)\u003c\/h2\u003e\n\u003cp\u003eM4904 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 466-592 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 380-450 nm; 618-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 466-592 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.3% at 710 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 454.2 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 611.4 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-454 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M4904.html\" title=\"M4904 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M4904\u003c\/h2\u003e\n\u003ch3\u003eWhere does M4904 transmit at least 80% in the measured curve?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 380-450 nm; 618-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould M4904 pass light outside its main band?\u003c\/h3\u003e\n\u003cp\u003eFor M4904, additional regions reach at least 50% transmission at approximately 380-454 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Sharp (\u003c=20nm)","offer_id":48516675895551,"sku":"M4904","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m4904-spectrum.jpg?v=1778713000"},{"product_id":"m79303","title":"M79303 447-611 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e447-611 nm nominal rejection-region broadband notch filter (M79303)\u003c\/h2\u003e\n\u003cp\u003eM79303 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 456-584 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 387-438 nm; 622-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 456-584 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.2% at 701 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 443.6 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 610.6 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-443 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M79303.html\" title=\"M79303 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M79303\u003c\/h2\u003e\n\u003ch3\u003eWhere does M79303 transmit at least 80% in the measured curve?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 387-438 nm; 622-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould M79303 pass light outside its main band?\u003c\/h3\u003e\n\u003cp\u003eFor M79303, additional regions reach at least 50% transmission at approximately 380-443 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675928319,"sku":"M79303","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m79303-spectrum.jpg?v=1778713001"},{"product_id":"m79502","title":"M79502 435-635 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e435-635 nm nominal rejection-region broadband notch filter (M79502)\u003c\/h2\u003e\n\u003cp\u003eM79502 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 445-605 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 387-429 nm; 641-771 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 445-605 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.2% at 718 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 433.1 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 632.4 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 383-433 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M79502.html\" title=\"M79502 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M79502\u003c\/h2\u003e\n\u003ch3\u003eWhich part of the spectrum is most useful when choosing M79502?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 387-429 nm; 641-771 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eWhat should I check beyond the main transmission region of M79502?\u003c\/h3\u003e\n\u003cp\u003eFor M79502, additional regions reach at least 50% transmission at approximately 383-433 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516675961087,"sku":"M79502","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m79502-spectrum.jpg?v=1778713001"},{"product_id":"m5601","title":"M5601 441-617 nm nominal rejection-region broadband notch filter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/broadband-notch-filters\"\u003eBroadband Notch Filters\u003c\/a\u003e\u003c\/p\u003e\u003c\/nav\u003e\u003cstyle\u003e\n.ko-reviewed{color:#222;font-family:inherit;line-height:1.65;overflow-wrap:anywhere}\n.ko-reviewed *{box-sizing:border-box}.ko-reviewed h2,.ko-reviewed h3{color:#005F96;line-height:1.3}\n.ko-reviewed h2{font-size:24px;margin:0 0 1rem}.ko-reviewed h3{font-size:19px;margin:1.7rem 0 .65rem}\n.ko-reviewed p{margin:.6rem 0 1rem}.ko-reviewed ul{padding-left:1.25rem;margin:.6rem 0 1rem}\n.ko-reviewed li{padding-left:.15rem;margin:.55rem 0}.ko-reviewed .ko-note{border-left:3px solid #c9dae4;padding:.65rem 1rem;background:#f7fafc;font-size:.95em}\n.ko-reviewed a{color:#005F96;text-decoration:underline}\n\n@media(max-width:480px){.ko-reviewed h2{font-size:22px}.ko-reviewed h3{font-size:18px}.ko-reviewed .ko-note{padding:.65rem .8rem}}\n\u003c\/style\u003e\u003csection class=\"ko-reviewed\"\u003e\u003ch2 class=\"ko-catalog-description-title\"\u003e441-617 nm nominal rejection-region broadband notch filter (M5601)\u003c\/h2\u003e\n\u003cp\u003eM5601 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 453-589 nm, with transmission recovering on either side. Choose it for broad spectral suppression rather than assuming a narrow laser-line stop.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 380-780 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or above 80% transmission:\u003c\/strong\u003e 383-433 nm; 624-780 nm. Approximate measured intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelected regions at or below 5% transmission:\u003c\/strong\u003e 453-589 nm. Measured sample intervals; confirm the required blocking for your order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak transmission:\u003c\/strong\u003e Approximately 95.6% at 637 nm. Peak wavelength is not the same as a defined centre wavelength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 438.8 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured edge at 50% transmission:\u003c\/strong\u003e Approximately 614.8 nm. Interpolated absolute-transmission crossing, checked against the factory summary. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ko-note\"\u003eThese values come from the measured samples and help you choose a starting design. We will agree the final specification for your order. Custom versions have their own specifications and measured curves.\u003c\/p\u003e\n\u003ch3\u003eApplications to consider\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband illumination shaping:\u003c\/strong\u003e Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectral contrast development:\u003c\/strong\u003e Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-region optical experiments:\u003c\/strong\u003e Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdditional regions reach at least 50% transmission at approximately 380-438 nm. Include these in the detector and blocking assessment.\u003c\/li\u003e\n\u003cli\u003eCheck the full wavelength range of your light source, the wavelengths your detector responds to, and how much unwanted light you need to block. Use the full curve when choosing a filter; the product code and peak do not tell the whole story.\u003c\/li\u003e\n\u003cli\u003eTell us the angle at which light reaches the filter and whether the beam is parallel or converging. For demanding rejection or high-power use, confirm the required blocking and power-handling specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustom options\u003c\/h3\u003e\n\u003cp\u003eStart with this stock or sample-book design, then tell us what you need to change. We can discuss the wavelength bands, transmission, blocking, angle, glass material, size and operating conditions with you, and agree a specification for your custom filter.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003eTransmission spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/M5601.html\" title=\"M5601 transmission spectrum with wavelength readout\" loading=\"lazy\" width=\"100%\" height=\"880\" style=\"border:0;width:100%;height:clamp(640px,calc(43vw + 320px),880px);\" referrerpolicy=\"no-referrer-when-downgrade\"\u003e\u003c\/iframe\u003e\u003csection class=\"ko-reviewed ko-product-faq\" aria-label=\"Product questions\"\u003e\u003ch2\u003eQuestions about M5601\u003c\/h2\u003e\n\u003ch3\u003eWhat high-transmission regions should I compare for M5601?\u003c\/h3\u003e\n\u003cp\u003eThe measured regions at or above 80% transmission are 383-433 nm; 624-780 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.\u003c\/p\u003e\n\u003ch3\u003eCould a broad-response detector see another band through M5601?\u003c\/h3\u003e\n\u003cp\u003eFor M5601, additional regions reach at least 50% transmission at approximately 380-438 nm. If your detector responds there, include that light in the background assessment or discuss an additional blocking requirement.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eDiscuss this filter with KUPO\u003c\/strong\u003e\u003c\/a\u003e - include the product reference, source wavelength, working angle and required dimensions.\u003c\/p\u003e\u003cstyle\u003e#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:27px;font-weight:500;line-height:1.4;letter-spacing:-.01em;color:#0c324b;background:#f0f6f9;padding:20px 24px;}#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title+p{border-bottom:0;}@media(max-width:650px){#MainContent .ko-reviewed\u003eh2.ko-catalog-description-title{font-size:24px;}}\u003c\/style\u003e","brand":"KUPO Optics","offers":[{"title":"Broadband Notch Filter \/ Green \/ Standard (\u003e20nm)","offer_id":48516676157695,"sku":"M5601","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/m5601-spectrum.jpg?v=1778713003"}],"url":"https:\/\/kupooptics.com\/collections\/broadband-notch-filters.oembed","provider":"KUPO Optics","version":"1.0","type":"link"}