Optical Interference Bandpass Filters
High Performance Thin Film Optical Filters
Knight Optical's optical interference bandpass filters transmit a precise wavelength while blocking unwanted light.
Stock Interference Filters from 214-2000nm
With 3nm narrowband widths to 100nm broadband optical filters availble, which are hermetically sealed and CNC-scribed for long-term stability.
Laser line, Fluorescence, and Imaging Applications
Stock filters provide a cost effective solution for prototyping.
Custom Optical Interference Filters Available
If our stock optical interference bandpass filters do not meet your requirements, bespoke designs are available upon request.
| Name | CWL(nm) | Peak Transmission (%) | FWHM | Diameter (mm) | Thickness (mm) | Blocking Type | Avg. Blocking Range | Avg. Blocking OD | Price | Buy |
| 800DIW25 | 800 | 70 | 65 | 25 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$175.00
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| 1000DIB12 | 1000 | 50 | 15 | 12.5 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$107.45
|
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| 800DIR50 | 800 | 70 | 40 | 50 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$469.13
|
|
| 1580DIB12 | 1580 | 40 | 16 | 12.5 | 6.1 | Dielectric | 4 |
US$123.43
|
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| 633DIJ25 | 632.8 | 70 | 10 | 25 | 6.1 | Dielectic | 200nm to 1150nm | 5 |
US$175.00
|
|
| 640FIB12 | 640 | 50 | 10 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$96.61
|
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| 633DIJ12 | 632.8 | 70 | 10 | 12.5 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$107.45
|
|
| 520DIB50 | 50 | 10 | 50 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$469.13
|
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| 1720DIB25 | 1720 | 40 | 15 | 25 | 6.1 | Dielectric | 200nm to 2050nm | 4 |
US$238.52
|
|
| 273FIA35 | 273 | >15% | 13 | 35 | 6 | Metallic | 200nm to 1200nm | 4 |
US$516.11
|
