Narrow band filter is a major role in light of a specific wavelength through, let the other wavelengths of the light reflection ( or attenuation) of optical components. Half wave width is usually controlled in 20nm or smaller, ultraviolet, visible light, near infrared wavelength, far infrared wave band . My company's narrow bandpass filter using multilayer epidural by ion assisted deposition of nanometer materials and high vacuum evaporation coating, good compactness, high imaging definition.
The center wavelength: 515 ± 7Nm
Stop band 400nm-480nm
The cutoff rate: T<0.1%
Plated with hard, long service life,
Ion plating, low temperature drift
High penetration rate,
High cut-off depth
Fluorescence analyzer, enzyme mark instrument, cable television to upgrade equipment, wireless transmission equipment, mobile phone bar code scanning, infrared electronic whiteboard, infrared cameras, infrared touch screen, iris recognition, medical instrument, infrared ink recognition, red film recognition, face recognition sensor system. Handheld infrared laser rangefinder, laser range finder, optical instruments, medical equipment and testing apparatus.