Band-pass optical filter

visible lightultravioletbroadband

Interference band-pass filters are used to isolate and transmit a specified narrow wavelength and reflect all other incident wavelengths. Knight Opitcal’s stock range of high quality extra broadband visible and NIR filters is available from 500nm - 960nm in various bandwidths to meet most requirements from CCTV and high-end surveillance systems and ANPR camera technologies. Typically, our filters are 3-7 cavity and in most cases blocking is metal dielectric from 200nm to FIR (3000+nm) at OD4. This extra broadband range of interference bandpass filter has a standard 70% transmission. High efficient performance 90% transmission interference bandpass filters are available on single substrates for standard LED wavelengths for modern camera applications. The individual filters are CNC scribed and hermetically sealed to form a stack in their rings, ensuring maximum long-term stability. Although our standard stock range is mounted, un-mounted types with aerospace paint blackened edges can be supplied at request. All our interference bandpass filters are supplied with a transmission curve; ASCI files are available on request. We can also supply interference bandpass filters with dielectric blocking on request. Contact our multilingual technical sales team and discover how Knight Opticals high quality optical components and superior service can improve your instrumentation and supply chain experience.