IR（infrared) cut-off filters are used with color CCD or CMOS imagers to produce accurate color images. An IR cut-off filter blocks the transmission of the infrared while passing the visible.
The IR-cut filter(ICF) is a short pass filter that blocks infrared light and transmits the visible. Infrared (IR) cut-off filters are used with color CCD or CMOS imagers to produce true color images.
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