Optical fingerprint identification is the most widely used fingerprint identification technology at present. The finger is placed on the optical lens, illuminated by the built-in light source, projected onto the charge device, and processed into a multi-gray fingerprint recognition image by the fingerprint chip. Optical fingerprint module is difficult to be damaged unless it is a voltage or maintenance error.
Extended data:
Fingerprint module is the core component of fingerprint lock, which is installed on devices such as fingerprint access control or hard disk to complete fingerprint collection and identification. Fingerprint module is mainly composed of fingerprint acquisition module, fingerprint identification module and extended function module (such as lock drive module).