{"title":"Beam Splitters","description":"\u003cp\u003eDivide incident light between transmitted and reflected paths. Each design must be selected for the intended wavelength range and angle of incidence.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Confirm both transmission and reflection, polarization and coating orientation. Transmission alone cannot establish the splitting ratio or the reflected spectrum.\u003c\/p\u003e","products":[{"product_id":"bms-011","title":"BMS-011 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-011)\u003c\/h2\u003e\n\u003cp\u003eBMS-011 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-500 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 76.2-78.3% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 315-436 nm:\u003c\/strong\u003e 77.414%. Calculated from the factory sample data.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-011.html\" title=\"BMS-011 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 BMS-011\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-011 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 77.414% average transmission over 315-436 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eCan I choose BMS-011 before fixing the beam geometry?\u003c\/h3\u003e\n\u003cp\u003eConfirm the intended angle with us before finalizing the layout. For BMS-011, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516667736319,"sku":"BMS-011","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-011-spectrum.jpg?v=1778712870"},{"product_id":"bms-010","title":"BMS-010 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-010)\u003c\/h2\u003e\n\u003cp\u003eBMS-010 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-500 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 51-58% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 315-436 nm:\u003c\/strong\u003e 50.712%. Calculated from the factory sample data.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-010.html\" title=\"BMS-010 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 BMS-010\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-010 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 50.712% average transmission over 315-436 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eWhat angle should I specify for BMS-010?\u003c\/h3\u003e\n\u003cp\u003eConfirm the intended angle with us before finalizing the layout. For BMS-010, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516667769087,"sku":"BMS-010","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-010-spectrum.jpg?v=1778712871"},{"product_id":"bms-009","title":"BMS-009 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-009)\u003c\/h2\u003e\n\u003cp\u003eBMS-009 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-500 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 25.6-45.4% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 315-436 nm:\u003c\/strong\u003e 25.900%. Calculated from the factory sample data.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-009.html\" title=\"BMS-009 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 BMS-009\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-009 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 25.900% average transmission over 315-436 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eWhat should I confirm before putting BMS-009 in my layout?\u003c\/h3\u003e\n\u003cp\u003eConfirm the intended angle with us before finalizing the layout. For BMS-009, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516667801855,"sku":"BMS-009","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-009-spectrum.jpg?v=1778712872"},{"product_id":"bms-007","title":"BMS-007 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-007)\u003c\/h2\u003e\n\u003cp\u003eBMS-007 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-1100 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 43.2-53.1% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500-600 nm:\u003c\/strong\u003e Approximately 50.1-53.7% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600-700 nm:\u003c\/strong\u003e Approximately 50.2-53.9% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 530-1070 nm:\u003c\/strong\u003e 50.739%. Calculated from the factory sample data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory working-angle designation:\u003c\/strong\u003e The matching factory worksheet is designated for 45 degrees angle of incidence. Confirm polarization and final acceptance conditions for the supplied configuration.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-007.html\" title=\"BMS-007 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 BMS-007\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-007 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 50.739% average transmission over 530-1070 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eCan I choose BMS-007 before fixing the beam geometry?\u003c\/h3\u003e\n\u003cp\u003eThe matching factory worksheet is designated for 45-degree incidence. For BMS-007, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516667834623,"sku":"BMS-007","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-007-spectrum.jpg?v=1778712872"},{"product_id":"bms-006","title":"BMS-006 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-006)\u003c\/h2\u003e\n\u003cp\u003eBMS-006 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-800 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 43.6-49.5% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500-600 nm:\u003c\/strong\u003e Approximately 49.5-51.2% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600-700 nm:\u003c\/strong\u003e Approximately 49.8-52.9% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 440-710 nm:\u003c\/strong\u003e 50.344%. Calculated from the factory sample data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory working-angle designation:\u003c\/strong\u003e The matching factory worksheet is designated for 45 degrees angle of incidence. Confirm polarization and final acceptance conditions for the supplied configuration.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-006.html\" title=\"BMS-006 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 BMS-006\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-006 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 50.344% average transmission over 440-710 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eWhat angle should I specify for BMS-006?\u003c\/h3\u003e\n\u003cp\u003eThe matching factory worksheet is designated for 45-degree incidence. For BMS-006, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516667867391,"sku":"BMS-006","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-006-spectrum.jpg?v=1778712873"},{"product_id":"bms-005","title":"BMS-005 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-005)\u003c\/h2\u003e\n\u003cp\u003eBMS-005 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-1000 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 45.9-54.8% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500-600 nm:\u003c\/strong\u003e Approximately 50.1-52% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600-700 nm:\u003c\/strong\u003e Approximately 48.8-51.7% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 420-900 nm:\u003c\/strong\u003e 50.648%. Calculated from the factory sample data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory working-angle designation:\u003c\/strong\u003e The matching factory worksheet is designated for 45 degrees angle of incidence. Confirm polarization and final acceptance conditions for the supplied configuration.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-005.html\" title=\"BMS-005 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 BMS-005\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-005 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 50.648% average transmission over 420-900 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eWhat should I confirm before putting BMS-005 in my layout?\u003c\/h3\u003e\n\u003cp\u003eThe matching factory worksheet is designated for 45-degree incidence. For BMS-005, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516667900159,"sku":"BMS-005","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-005-spectrum.jpg?v=1778712874"},{"product_id":"bms-004","title":"BMS-004 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-004)\u003c\/h2\u003e\n\u003cp\u003eBMS-004 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-800 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 21.5-27.9% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500-600 nm:\u003c\/strong\u003e Approximately 22.4-27.9% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600-700 nm:\u003c\/strong\u003e Approximately 23.7-25.2% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 380-800 nm:\u003c\/strong\u003e 24.840%. Calculated from the factory sample data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory working-angle designation:\u003c\/strong\u003e The matching factory worksheet is designated for 45 degrees angle of incidence. Confirm polarization and final acceptance conditions for the supplied configuration.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-004.html\" title=\"BMS-004 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 BMS-004\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-004 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 24.840% average transmission over 380-800 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eCan I choose BMS-004 before fixing the beam geometry?\u003c\/h3\u003e\n\u003cp\u003eThe matching factory worksheet is designated for 45-degree incidence. For BMS-004, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516667932927,"sku":"BMS-004","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-004-spectrum.jpg?v=1778712875"},{"product_id":"bms-003","title":"BMS-003 650 nm reflecting beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003e650 nm reflecting beam splitter (BMS-003)\u003c\/h2\u003e\n\u003cp\u003eBMS-003 is a beam splitter for a reflected red-light path. The factory describes a nominal 650 nm design for use at a 45-degree angle. The supplied curve measures reflected light; ask us to confirm the transmitted light separately.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-800 nm reflectance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured reflectance at 650 nm:\u003c\/strong\u003e 89.098%. This is reflected light, not transmitted light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory design designation:\u003c\/strong\u003e 650 nm, 45 degrees, nominal reflectance 90% +\/-3%. Factory design target; confirm the final specification for your order.\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\u003eRed-light beam routing:\u003c\/strong\u003e Evaluate the reflected path around 650 nm for illumination or instrument integration. Match the source bandwidth and optical geometry to the required response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical monitoring:\u003c\/strong\u003e Discuss a reflected signal and a separately specified transmitted path for the intended source and detector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm both reflected and transmitted paths, polarization and working angle. Reflectance alone does not determine transmission.\u003c\/li\u003e\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\u003eReflectance spectrum\u003c\/h3\u003e\u003ciframe src=\"https:\/\/charts.kupooptics.com\/BMS-003.html\" title=\"BMS-003 reflectance 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 BMS-003\u003c\/h2\u003e\n\u003ch3\u003eDoes the 89.098% reading at 650 nm mean transmission?\u003c\/h3\u003e\n\u003cp\u003eIt means reflectance: that fraction of the measured 650 nm light is reflected by the measured sample. BMS-003 is intended for a reflected red-light path; the chart does not establish the transmission of the other path.\u003c\/p\u003e\n\u003ch3\u003eCan I install BMS-003 at a different angle from 45 degrees?\u003c\/h3\u003e\n\u003cp\u003eThe factory identifies this as a 45-degree design. If your layout uses another angle, tell us the beam geometry and polarization before selecting it. The supplied curve does not establish the response at other angles.\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":"Beam Splitter","offer_id":48516667965695,"sku":"BMS-003","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-003-reviewed-reflectance_8472f93d-90c8-40c6-88cf-d874ae705abb.png?v=1788660903"},{"product_id":"bms-002","title":"BMS-002 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-002)\u003c\/h2\u003e\n\u003cp\u003eBMS-002 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-800 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 44.1-47% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500-600 nm:\u003c\/strong\u003e Approximately 44.9-47% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600-700 nm:\u003c\/strong\u003e Approximately 44.7-45.5% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 400-700 nm:\u003c\/strong\u003e 45.362%. Calculated from the factory sample data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory working-angle designation:\u003c\/strong\u003e The matching factory worksheet is designated for 45 degrees angle of incidence. Confirm polarization and final acceptance conditions for the supplied configuration.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-002.html\" title=\"BMS-002 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 BMS-002\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-002 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 45.362% average transmission over 400-700 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eWhat should I confirm before putting BMS-002 in my layout?\u003c\/h3\u003e\n\u003cp\u003eThe matching factory worksheet is designated for 45-degree incidence. For BMS-002, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516667998463,"sku":"BMS-002","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-002-spectrum.jpg?v=1778712877"},{"product_id":"bms-001","title":"BMS-001 Beam splitter","description":"\u003cnav aria-label=\"Product family\"\u003e\u003cp\u003e\u003ca href=\"\/collections\/all-products\"\u003eAll optics\u003c\/a\u003e \/ \u003ca href=\"\/collections\/beam-splitters\"\u003eBeam Splitters\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\"\u003eBeam splitter (BMS-001)\u003c\/h2\u003e\n\u003cp\u003eBMS-001 is a beam splitter. Consider it when you need to split light between a main optical path and a monitoring detector or second device. The reference spectrum describes the transmitted path; choose the required reflection ratio and angle of incidence with KUPO.\u003c\/p\u003e\n\u003ch3\u003eOptical performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured wavelength range:\u003c\/strong\u003e 300-800 nm. Performance outside this measured interval is not established by this curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400-500 nm:\u003c\/strong\u003e Approximately 80.5-84.2% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500-600 nm:\u003c\/strong\u003e Approximately 83-84% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600-700 nm:\u003c\/strong\u003e Approximately 81.4-83.1% transmission in the measured curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflection and working angle:\u003c\/strong\u003e Specify the required reflected path, polarization and angle; transmission alone does not establish those properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage measured transmission, 400-700 nm:\u003c\/strong\u003e 83.062%. Calculated from the factory sample data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory working-angle designation:\u003c\/strong\u003e The matching factory worksheet is designated for 45 degrees angle of incidence. Confirm polarization and final acceptance conditions for the supplied configuration.\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\u003eIllumination monitoring:\u003c\/strong\u003e Consider it for sending part of a beam to a monitoring detector. Specify the required throughput in both paths at the working angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-path imaging:\u003c\/strong\u003e Consider it for sharing light between a camera and another imaging or viewing device. Account for polarization, wavefront requirements and wavelength-dependent balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument integration:\u003c\/strong\u003e Compare the transmission profile with the required spectral band, then confirm reflection and geometry before finalizing the optical layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing this filter\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConfirm transmitted and reflected specifications separately, including polarization and angle of incidence. The supplied transmission curve is not a measurement of the reflected path.\u003c\/li\u003e\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\/BMS-001.html\" title=\"BMS-001 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 BMS-001\u003c\/h2\u003e\n\u003ch3\u003eWhat does the BMS-001 curve tell me about the two output paths?\u003c\/h3\u003e\n\u003cp\u003eIt gives the transmitted-light response, including 83.062% average transmission over 400-700 nm. It does not independently measure the reflected path. Specify the response you need in each path rather than assuming they are equal.\u003c\/p\u003e\n\u003ch3\u003eCan I choose BMS-001 before fixing the beam geometry?\u003c\/h3\u003e\n\u003cp\u003eThe matching factory worksheet is designated for 45-degree incidence. For BMS-001, include the wavelength range and polarization of each path. A transmission curve alone is not enough to establish the split for a different geometry.\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":"Beam Splitter","offer_id":48516668031231,"sku":"BMS-001","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/8651\/1359\/files\/bms-001-spectrum.jpg?v=1778712877"}],"url":"https:\/\/kupooptics.com\/collections\/beam-splitters.oembed","provider":"KUPO Optics","version":"1.0","type":"link"}