Optical Micro-Channel Array Plate Applied in Underscreen Biometric Recognition
The OMCAP consists of a regularly arranged array of solid optical micro-channels. The
incident light smaller than the product aperture angle is emitted from the transparent glass channel, while the light larger than the aperture angle is absorbed by the black glass, thereby realizing the constrained collimation effect on the incident light.
It has the features of large area ultra-thin imaging, solid structure, easy to clean, high strength, good optical collimation and process performance, easy for mass production and low cost.
The product couples with an image sensor, and the image element can only receive collimated optical information corresponding to its position, thus enabling close-range image acquisition. The OMCAP can be applied in Under-screen Fingerprint Identification, Vein Recognition, and Palmprint Recognition etc..
