Patent ID: 8649001
Filing Date: 2014-02-11
Classification: G06K

Abstract:
1. A substrate for fingerprint contact, comprising: a plate, wherein the plate has a first surface and a second surface, the first surface is opposite to the second surface, the first surface is an optical diffusing surface, the optical diffusing surface is used for being contacted by a finger, and the second surface faces an optical imaging system, the optical diffusing surface is a surface featuring hazed particles formed by a Ultra-Violet Coating (UV Coating) or a mold discharging process, and the haze of the optical diffusing surface ranges from 85% to 95%; wherein the optical imaging system comprises at least one light emitting element, the light emitting element is used for emitting light to the plate, when the light emitting element transmits the light to the optical diffusing surface, the scattering of the light is enhanced, and when the light contacts the finger, the optical diffusing surface helps to weaken the scattering of the light.