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 |
| 1900DIB12 | 1900 | 35 | 16 | 12.5 | 6.1 | Dielectric | 200nm to 2250nm | 4 |
US$131.36
|
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| 1800DIB25 pdf | 1800 | 40 | 16 | 25 | 6.1 | Dielectric | 200nm to 2150nm | 4 |
US$238.52
|
|
| 1800DIB12 pdf | 1800 | 40 | 16 | 12.5 | 6.1 | Dielectric | 200nm to 2150nm | 4 |
US$131.36
|
|
| 1700DIB25 pdf | 1700 | 40 | 15 | 25 | 6.1 | Dielectric | 200nm to 2050nm | 4 |
US$238.52
|
|
| 1700DIB12 pdf | 1700 | 40 | 15 | 12.5 | 6.1 | Dielectric | 200nm to 2050nm | 4 |
US$131.36
|
|
| 1680DIB25 pdf | 1680 | 40 | 14 | 25 | 6.1 | Dielectric | 200nm to 1950nm | 4 |
US$190.85
|
|
| 1660DIB25 pdf | 1660 | 40 | 13 | 25 | 6.1 | Dielectric | 200nm to 1950nm | 4 |
US$190.85
|
|
| 1600DIB25 pdf | 1600 | 40 | 13 | 25 | 6.1 | Dielectric | 200nm to 1850nm | 5 |
US$190.85
|
|
| 1580FIB12 pdf | 1580 | 40 | 16 | 12.5 | 6.1 | Silver | 200nm to 1850nm | 5 |
US$110.92
|
|
| 1520DIB12 pdf | 1520 | 40 | 15 | 12.5 | 6.1 | Dielectric | 200nm to 1850nm | 5 |
US$123.43
|
