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 |
| 273FIA35 | 273 | >15% | 13 | 35 | 6 | Metallic | 200nm to 1200nm | 4 |
US$516.11
|
|
| 265FIA35 | 265 | >15% | 13 | 35 | 6 | Metallic | 200nm to 1200nm | 4 |
US$516.11
|
|
| 254FIA35 | 254 | >15% | 13 | 35 | 6 | Metallic | 200nm to 1200nm | 4 |
US$516.11
|
|
| 273FIA25 | 265 | >15% | 13 | 25 | 6 | Metallic | 200nm to 1200nm | 4 |
US$341.25
|
|
| 265FIA25 | 265 | >15% | 13 | 25 | 6 | Metallic | 200nm to 1200nm | 4 |
US$341.25
|
|
| 254FIA25 | 254 | >15% | 13 | 25 | 6 | Metallic | 200nm to 1200nm | 4 |
US$341.25
|
|
| 222FIA35 | 224 | >14% | 13 | 35 | 6 | Metallic | 200nm to 1200nm | 4 |
US$516.11
|
|
| 222FIA25 | 222 | >14% | 13 | 25 | 6 | Metallic | 200nm to 1200nm | 4 |
US$341.25
|
|
| 1680DIB12 | 1680 | 40 | 14 | 12.5 | 6.1 | Dielectric | 200nm to 1950nm | 4 |
US$123.43
|
|
| 1660DIB12 | 1660 | 40 | 14 | 12.5 | 6.1 | Dielectric | 200nm to 1950nm | 4 |
US$123.43
|
