BN SERIES NARROW BANDWIDTH BANDPASS FILTERS
BN Series are popular in factory automation applications where overwhelming ambient light (sunlight) may be present and in fluorescence applications to prevent cross-talk, while blocking excitation illumination and ambient light. NIR BN filters are commonly used in outdoor applications such as security surveillance and license plate recognition.
- 45-55nm FWHM (in most cases)
- Guaranteed peak transmission ≥85%
- Superior out-of-band blocking
- Designed for use with laser diodes and LEDs in applications with overwhelming ambient light
- StablEDGE® design reduces angular dependency and minimizes short-shifting effects
- Double-side polished glass for exceptional parallelism and transmitted optical wavefront
BN450 - NARROW INDIGO BANDPASS
Specifications
Useful Range: 435nm - 465nm
FWHM: 45nm
Tolerance: +/- 7nm
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness: ≤3
BN470 - Narrow Blue Bandpass
Specifications
Useful Range: 460nm - 490nm
FWHM: 45nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN485 - Narrow Blue Bandpass (Limited)
Specifications
Useful Range: 480nm - 490nm
FWHM: 35nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: 1mm
BN490 - Narrow Green Blue Bandpass (Limited)
Specifications
Useful Range: 475nm - 500nm
FWHM: 40nm
Tolerance: +/- 7nm
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness: 1mm
BN520 - Narrow Green Bandpass
Specifications
Useful Range: 510nm - 545nm
FWHM: 55nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN532 - Narrow Green Bandpass
Specifications
Useful Range: 525nm - 550nm
FWHM: 55nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN535 - Narrow Green Bandpass
Specifications
Useful Range: 520nm - 545nm
FWHM: 40nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN595 - Narrow Orange Bandpass
Specifications
Useful Range: 580nm - 610nm
FWHM: 45nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN630 - Narrow Light Red Bandpass
Specifications
Useful Range: 625nm - 645nm
FWHM: 45nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN650 - Narrow Red Bandpass (Limited)
Specifications
Useful Range: 638nm - 672nm
FWHM: 50nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN660 - Narrow Dark Red Bandpass
Specifications
Useful Range: 645nm - 675nm
FWHM: 40nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN740 - Narrow NIR Bandpass
Specifications
Useful Range: 730nm - 755nm
FWHM: 50nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN785 - Narrow NIR Bandpass
Specifications
Useful Range: 770nm - 790nm
FWHM: 55nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN810 - Narrow NIR Bandpass
Specifications
Useful Range: 798nm - 820nm
FWHM: 50nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN850 - Narrow NIR Bandpass
Specifications
Useful Range: 840nm - 865nm
FWHM: 52nm
Tolerance: ± 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN880 - Narrow NIR Bandpass
Specifications
Useful Range: 855nm - 890nm
FWHM: 45nm
Tolerance: +/- 7nm
Peak Transmission: ≥85%
Surface Quality: 40/20
Thickness: ≤3
BN940 - Narrow NIR Bandpass
Specifications
Useful Range: 928nm - 955nm
FWHM: 55nm
Tolerance: +/- 7nm
Peak Transmission: ≥90%
Surface Quality: 40/20
Thickness: ≤3