Narrow Bandpass Filters　850nm

This IR filter is purposely designed for machine vision. Dielectric multilayer coatings are coated on both surfaces of a single thin substrate. The filter is generally installed in the space between lenses and CCD/CMOS sensor. Since it is very thin, the defocussing effect is very small. This filter is widely used in face recognition, car plate recognition, optically multi-touch panel and measuring instruments system. Due to all dielectric hard coatings, the filter has good environmental stability and has a long lifetime.
The specification for BP850/30 is as follows:
Material: soda lime float glass
Center wavelength: 850+/-5nm
Bandwidth: 30+/-5nm
Tpeak:>85%
Blocking: T