BBP-585 585 nm bandpass filter
BBP-585 is a bandpass filter. The main high-transmission region is approximately 579-595 nm.
- Measured wavelength range: 300-800 nm
- Main-band width: ≈ 26.3 nm at half-peak transmission
- Peak transmission: ≈ 93% at 585 nm
- Transmission ≥80%: 579-595 nm
- Transmission ≤5%: 300-362 nm; 401-563 nm; 608-800 nm
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
BBP-585 585 nm bandpass filter
BBP-585 is a bandpass filter. The main high-transmission region is approximately 579-595 nm.
- Measured wavelength range: 300-800 nm
- Main-band width: ≈ 26.3 nm at half-peak transmission
- Peak transmission: ≈ 93% at 585 nm
- Transmission ≥80%: 579-595 nm
- Transmission ≤5%: 300-362 nm; 401-563 nm; 608-800 nm
- Custom options: Wavelength response, dimensions and operating conditions
Values shown are sample measurements. Final specifications are agreed for your order.
585 nm nominal-channel bandpass filter (BBP-585)
BBP-585 is a bandpass filter. The main high-transmission region is approximately 579-595 nm. Use the full curve to match the desired signal and check secondary transmission before choosing the filter.
Optical performance
- Measured wavelength range: 300-800 nm. Performance outside this measured interval is not established by this curve.
- Main band at half-peak transmission: Approximately 573.2-599.5 nm, giving a full width at half maximum (FWHM) of approximately 26.3 nm. This describes the main band only; other transmitted regions may remain.
- Selected regions at or above 80% transmission: 579-595 nm. Approximate measured intervals.
- Selected regions at or below 5% transmission: 300-362 nm; 401-563 nm; 608-800 nm. Measured sample intervals; confirm the required blocking for your order.
- Peak transmission: Approximately 93% at 585 nm. Peak wavelength is not the same as a defined centre wavelength.
- Average measured transmission, 400-550 nm: 0.752%. Calculated from the factory sample data.
- Average measured transmission, 580-590 nm: 91.898%. Calculated from the factory sample data.
- Average measured transmission, 620-800 nm: 0.542%. Calculated from the factory sample data.
- 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
- Illuminated inspection: Consider illumination within 579-595 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: BP585-D01; earlier reference BBP-585. Include either reference in your inquiry.
Transmission spectrum
Questions about BBP-585
What high-transmission regions should I compare for BBP-585?
The measured regions at or above 80% transmission are 579-595 nm. They are measured intervals, not guaranteed passband tolerances. Compare the full curve with the signal wavelengths you need to retain.
Can I use the low points on the BBP-585 curve as a blocking guarantee?
The measured regions at or below 5% transmission are 300-362 nm; 401-563 nm; 608-800 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.