What are you looking for in Stock?
Optical Filters are used to control the spectral content of a light beam, attenuate unwanted light and pass wanted light. There are two major types of optical filter, absorption and interference.
There are major cost and performance differences between these two types and an understanding of these is essential to the correct selection of a filter. Filters are also often described by their function, as well as their structure.
Knight Optical’s optical filters are utilized in a massive range of optical systems, from automatic number plate recognition systems to fluorescence microscopy, from gas detection to lighting design.
Uses of our optical filters span Medical, Defence, Industrial, Commercial, Electronics, Research and Entertainment markets and many sectors and applications.
Our stock filter ranges include filters for passing and blocking wavelengths from UV, through visible to NIR and IR.
- Band pass filters
- Long pass filters
- Short pass filters
- Neutral density filters
- Dichroic filters
- IR-cut filters
- Colour glass filters
- Heat glass filters
- ANPR/ALPR Filters