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.

Figure 1 - IR-Cut filter transmission graph. Coated on borosilicate glass, with a low thermal expansion, Knight Optical’s IR cut filters also have an AR coating on the rear surface to reduce unwanted ...

Once the True-Cut IR filter is in place, all filters behind are protected from visible light contaminating the image. The True-Cut IR Tuner Kits consist of 3 IR cut strength filters: 680 (IR680), 715 ...

NanoOpto, a division of API Nanotronics, has introduced low-edge-shift IR cut filters for high-performance digital imaging applications. They are fabricated with a conformal coating atomic layer ...

Hoya has a new series of Solas IRND neutral density filters that cut down visible light, but also fight off infrared radiation that can mess with shadow detail and noise, especially with long ...