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 |
| 320FIB12 pdf | 320 | 25 | 10 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 4 |
US$226.57
|
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| 310FIB25 pdf | 310 | 20 | 14 | 25 | 5 | Silver | 200nm to 1150nm | 4 |
US$341.25
|
|
| 300FIB25 pdf | 300 | 25 | 14 | 25 | 6.1 | Silver | 200nm to 1150nm | 4 |
US$341.25
|
|
| 280FIB12 pdf | 280 | 17 | 14 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 4 |
US$226.57
|
|
| 254FIB12 pdf | 254.7 | 17 | 14 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 4 |
US$226.57
|
|
| 220FIB12 pdf | 220 | 15 | 10 +/-3nm | 12.5 | 3.5 | Silver | 200nm to 1150nm | 4 |
US$226.57
|
|
| 214FIB25 pdf | 214 | 14 | 14 | 25 | 6.1 | Silver | 200nm to 1150nm | 4 |
US$341.25
|
|
| 2000DIB25 pdf | 2000 | 35 | 17 | 25 | 6.1 | Dielectric | 200nm to 2350nm | 4 |
US$238.52
|
|
| 2000DIB12 pdf | 2000 | 35 | 17 | 12.5 | 6.1 | Dielectric | 200nm to 2350nm | 4 |
US$131.36
|
|
| 1900DIB25 | 1900 | 35 | 16 | 25 | 6.1 | Dielectric | 200nm to 2250nm | 4 |
US$238.52
|
