IR Cut Filter : We can make different shape (round or square), thickness (from 0.3mm to 1.1mm) of IR Cut Filters. IR Cut Filter : The IR Cut Filter which also called Infrared filter is normally used in solid state (CCD or CMOS) video cameras to reflect or block IR wavelength while passing the visable light. It can be used on digital mobile telephone, CCTV (Surveillance cameras), PC cameras, ...