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 |
| 510FIB12 pdf | 510 | 50 | 10 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$96.61
|
|
| 500FIR25 pdf | 500 | 70 | 40 | 25 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$157.49
|
|
| 500FIR12 pdf | 500 | 70 | 40 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$96.61
|
|
| 500FIB50 pdf | 500 | 50 | 10 | 50 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$422.28
|
|
| 458FIB12 pdf | 457.9 | 45 | 10 | 12.5 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$96.61
|
|
| 440FIB50 pdf | 440 | 45 | 10 | 50 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$422.28
|
|
| 440FIB25 pdf | 440 | 45 | 10 | 25 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$137.61
|
|
| 430FIB50 pdf | 430 | 45 | 10 | 50 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$422.28
|
|
| 420FIB50 pdf | 420 | 45 | 10 | 50 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$422.28
|
|
| 420FIB25 pdf | 420 | 45 | 10 | 25 | 6.1 | Silver | 200nm to 1150nm | 5 |
US$157.49
|
