BBP-626 626 nm bandpass filter
BBP-626 is a bandpass filter. The main high-transmission region is approximately 548-705 nm.
- Measured wavelength range: 300-1200 nm
- Main-band width: ≈ 173.5 nm at half-peak transmission
- Lower 50% edge: ≈ 539.6 nm
- Upper 50% edge: ≈ 712.4 nm
- Peak transmission: ≈ 96.8% at 652 nm
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
BBP-626 626 nm bandpass filter
BBP-626 is a bandpass filter. The main high-transmission region is approximately 548-705 nm.
- Measured wavelength range: 300-1200 nm
- Main-band width: ≈ 173.5 nm at half-peak transmission
- Lower 50% edge: ≈ 539.6 nm
- Upper 50% edge: ≈ 712.4 nm
- Peak transmission: ≈ 96.8% at 652 nm
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
626 nm nominal-channel bandpass filter (BBP-626)
BBP-626 is a bandpass filter. The main high-transmission region is approximately 548-705 nm. Use the full curve to match the desired signal and check secondary transmission before choosing the filter.
Optical performance
- Measured wavelength range: 300-1200 nm. Performance outside this measured interval is not established by this curve.
- Main band at half-peak transmission: Approximately 539.2-712.7 nm, giving a full width at half maximum (FWHM) of approximately 173.5 nm. This describes the main band only; other transmitted regions may remain.
- Selected regions at or above 80% transmission: 548-705 nm. Approximate measured intervals.
- Selected regions at or below 5% transmission: 300-519 nm; 738-1184 nm. Measured sample intervals; confirm the required blocking for your order.
- Peak transmission: Approximately 96.8% at 652 nm. Peak wavelength is not the same as a defined centre wavelength.
- Measured edge at 50% transmission: Approximately 539.6 nm. Interpolated absolute-transmission crossing, checked against the factory summary.
- Measured edge at 50% transmission: Approximately 712.4 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
- 660 nm illuminated inspection: Consider a source around 660 nm. Match the full source bandwidth to the curve, and check ambient-light rejection over the detector response.
- Optical sensing channels: Evaluate the transmitted region for a source-and-detector pair. Secondary transmitted light may require additional blocking or a detector with a limited response.
- Fluorescence instrument development: Consider the profile for an excitation or collection channel after matching both spectra. Confirm rejection of the excitation line and other transmitted bands in the complete optical layout.
Choosing this filter
- 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.
Catalog cross-reference: BP626-D01; earlier reference BBP-626. Include either reference in your inquiry.
Transmission spectrum
Questions about BBP-626
Where does BBP-626 transmit at least 80% in the measured curve?
The measured regions at or above 80% transmission are 548-705 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.
How much rejection can I infer from the BBP-626 measured curve?
The measured regions at or below 5% transmission are 300-519 nm; 738-1184 nm. That threshold is a way to summarize this sample, not a guaranteed blocking specification. For a weak signal beside a bright unwanted wavelength, tell us the actual wavelengths and maximum leakage you can accept.
Discuss this filter with KUPO - include the product reference, source wavelength, working angle and required dimensions.