P79711 470-630 nm nominal rejection-region broadband notch filter
P79711 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 485-612 nm, with transmission recovering on either side.
- Measured wavelength range: 380-780 nm
- Lower 50% edge: ≈ 472.2 nm
- Upper 50% edge: ≈ 631.7 nm
- Peak transmission: ≈ 95.7% at 740 nm
- Transmission ≥80%: 389-467 nm; 639-780 nm
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
P79711 470-630 nm nominal rejection-region broadband notch filter
P79711 is a broadband notch filter. Its measured curve has a low-transmission region at approximately 485-612 nm, with transmission recovering on either side.
- Measured wavelength range: 380-780 nm
- Lower 50% edge: ≈ 472.2 nm
- Upper 50% edge: ≈ 631.7 nm
- Peak transmission: ≈ 95.7% at 740 nm
- Transmission ≥80%: 389-467 nm; 639-780 nm
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
470-630 nm nominal rejection-region broadband notch filter (P79711)
P79711 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.
Optical performance
- Measured wavelength range: 380-780 nm. Performance outside this measured interval is not established by this curve.
- Selected regions at or above 80% transmission: 389-467 nm; 639-780 nm. Approximate measured intervals.
- Selected regions at or below 5% transmission: 485-612 nm. Measured sample intervals; confirm the required blocking for your order.
- Peak transmission: Approximately 95.7% at 740 nm. Peak wavelength is not the same as a defined centre wavelength.
- Measured edge at 50% transmission: Approximately 472.2 nm. Interpolated absolute-transmission crossing, checked against the factory summary.
- Measured edge at 50% transmission: Approximately 631.7 nm. Interpolated absolute-transmission crossing, checked against the factory summary.
- Customization: We can customize stock and sample-book designs. Tell us the wavelength response, size and operating conditions you need.
These 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.
Applications to consider
- Broadband illumination shaping: Consider suppressing the indicated wavelength region while retaining shorter and longer wavelengths. Check that the desired signal lies outside the transition bands.
- Spectral contrast development: Evaluate whether reducing the rejected band improves contrast for a selected source and detector. Compare both remaining transmission regions with detector sensitivity.
- Multi-region optical experiments: Consider retaining light on both sides of the rejection band. Add channel-separation optics if independent measurements are required.
Choosing this filter
- Additional regions reach at least 50% transmission at approximately 380-472 nm. Include these in the detector and blocking assessment.
- Check 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.
- Tell 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.
Custom options
Start 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.
Transmission spectrum
Questions about P79711
Where does P79711 transmit at least 80% in the measured curve?
The 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.
Could P79711 pass light outside its main band?
For 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.
Discuss this filter with KUPO - include the product reference, source wavelength, working angle and required dimensions.