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Blue glass optical filter and coating optical filter

Optical filters are mainly used to eliminate the infrared light and trim the incoming light,as the blue wavelength has a higher penetration rate,better penetration than red -orange glass filters,the use of precision optical coating technology on the optical substrate alternately,coated with high and low refractive index optical film,to achieve high visibility visible light,near-infrared light-cut optical filter,it's mainly used for video cameras, automatic optical detection, optical instruments and so on



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