This wavelengths is used by the light source used by computers and security cameras for facial recognition.
As this filter transmits only the IR rays that are invisible to human eye, it looks completely black.
These filters are used in standard light sources for security cameras and IR night-vision systems used in nighttime photography.
The IR rays used in TV remote controllers and smartphone communications also use these wavelengths.


Transmitting DWL (nm)820 — 910
Transmittance ≧ %90
Center Wavelength (nm ±10)850
Half Bandwidth (nm ±10)160
Filter Size M (mm)22.5, 24, 25.5, 27, 30.5, 34, 35.5, 37, 40.5, 43, 46, 49, 52, 55, 58, 62
Glass Thickness (mm)4
Filter Colorcc3399

Similar products