940nm Dual Bandpass Filter Visible + 940nm NIR

Multi Bandpass Filter

Description:

940nm filter passes visible and reflected 940nm LED light without impacting system MTF. 940nm LEDs do not emit the faint red glow associated with 850nm and other lower near-IR LED wavelengths. Using a 940nm filter over or behind the lens allows full color imaging during the day and covert surveillance at night. However any camera’s spectral response at 940nm will be lower than at other, shorter near-IR wavelengths, so relative sensitivity of each camera’s imaging sensor at 940nm must also be considered. 940nm filters also see use in many automated inspection and 3D point cloud imaging applications.

Parameter:

Useful Range : 405-650nm, 925-965nm

FWHM : 250nm, 50nm

Tolerance : +/- 20nm VIS, +/- 10nm NIR

Peak Transmission : ≥90%

Surface Quality : 40/20

Compatible LED : 940nm, 950nm

Application:

Machine Vision