Long wavelength pass filter that is longer than the selected wavelength of light through, shorter than the wavelength of light by
Product features:
Compared with the traditional colored optical glass filters, my company production of short wave and long wave pass filter with cutoff steepness of large, high transmittance and background light density advantage, but also with the traditional optical glass method completely different point, when the incident angle changes ( from 0 degrees to large rotation angle ), features cutoff wavelength will shift to short wavelength direction. This function can be used in system fine-tuning, and you can get the desired wavelength.
Application fields:
Beauty apparatus, police multi-band detection apparatus, flashlight, stage lighting and color temperature orange, face recognition attendance equipment, optical instruments, optical fiber lighting, gold halogen lamp heat insulation sheet, cold light display cabinet.
Optical indicator:
Through the band: 425nm-1100nm
Minimum transmission rate: T>94%
The center wavelength: 420nm ± 3
Stop band: 350nm-405nm
The cutting depth: T<0.1%
The LP420 filter, widely used in large enterprises, financial system, financial companies, credit companies, public security, frontier defense, security, police, customs, ancient calligraphy identification fields.
