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 |
| 850DIR12 pdf | 850 | 70 | 40 | 12.5 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$107.45
|
|
| 850DIB25 pdf | 850 | 45 | 10 | 25 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$175.00
|
|
| 850DIB12 pdf | 850 | 45 | 10 | 12.5 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$107.45
|
|
| 830FIR25 pdf | 830 | 70 | 40 | 25 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$157.49
|
|
| 830FIR12 pdf | 830 | 70 | 40 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$96.61
|
|
| 830DIR25 pdf | 830 | 70 | 40 | 25 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$175.00
|
|
| 830DIR12 pdf | 830 | 70 | 40 | 12.5 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$107.45
|
|
| 820FIW50 | 820 | 70 | 65 | 50 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$422.28
|
|
| 820FIW12 | 820 | 70 | 75 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$96.61
|
|
| 820DIW25 | 820 | 70 | 75 | 25 | 6.1 | Dielectric | 200nm to 1150nm | 5 |
US$175.00
|
