Infrared (IR) Cut Filter

Infrared cut filter, also called IR cut filter, is designed to reflect or block infrared light while passing visible light. It is applied in wide range of fields that use camera module: surveillance system, vehicle cameras, camcorder, smartphone, etc. It is also used in device that uses incandescent light bulb and combustion equipment that has monioring window to prevent unwanted heating.

IR cut filter has a variety of transmittance spectrum in accordance with purpose of use. 

Various types of IR cut filters for a few decades are manufactures. 

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