Red filter red filter, in black and white photography vision into contrast, or combined use of 1 color infrared film, used for infrared photography; various color filters of different colors, are made from a variety of different colors. The same pigment density is not the same, the same color shade is also each not same. According to the pigment distinction, commonly used filter can be divided into yellow, yellow, orange, red, green, blue multi. Each color filter, according to the pigment density, and the depth of shade of the other, usually by Arabia digital calibration filter pigment density, which is the filter number. Different color filters of various colors of light through rate is not the same. With a color filter, the color shading degree of light absorption, and by the degree of well differentiated, deep color absorption through little, pale color of absorption through much less.

Optical indicator:

The band: 400nm-615nm, 630nm~780nm

As of depth: T<1%

Peak by: T>85%

Application fields:

Red filter is mainly used in the field of security monitoring, infrared gas analyzer, night vision, infrared detector, infrared receiver, infrared sensors, infrared communication products. Specific to the product such as: cameras, remote control, infrared curtain wall products, infrared induction toilet, faucet, wash liquid device, infrared temperature measurement, infrared printer, the interactive electronic whiteboard, the infrared touch screen, fingerprint identification machines.