Angle of incidence---------0° Substrate---------------------BK7, Float glass, B270, Borofloat33 Size-----------------------------Customized Application--------------------For image sensor that only requires NIR light. (The final detailed specifications are customized or suggested by Lenoptec. ) High visible light reflective mirror, also called Cold mirror, is designed to reflect the visible light at the reflectance of at least 90%, while pass the IR light at the transmission of at least 90%. Commonly applied to biometric devices that the sensor only requires NIR light to form the image. All Optical filters include: Acrylic Filter Dichroic Filter Beam Splitter Reflective Coating Interference Filter Waterproof and dustproof coating AR coating UV-IR Blocker IR Cut-off Filter Cartons