Infrared Cut Filter is also known as: Hot Mirror, Hot Mirrors, Day and Night Filter. The vacuum optical multi-layer coating is used to achieve the filtering function. It has high penetration of visible light and high reflection of infrared rays, which can correct the color shift phenomenon of CMOS and CCD and reduce the interference of infrared rays. That is to use precision optical coating technology to alternate on optical glass. Coated with high and low refractive index optical films to achieve high transmittance in the visible region (400-630nm) and optical filters with cut-off in the near-infrared (700-1100nm). Function: 1. High penetration of visible light. 2. Ultraviolet light absorption or reflection 3. Infrared light reflection. Application: Various image capture devices, such as: video cameras, cameras, monitors, mobile phone lens.