For use in verifying the identity of a user, an identity verifier comprising an optical fingerprint sensor coupled to an ID (identification) card reader. In one embodiment of the present invention, the optical fingerprint sensor includes a light source on a PCB assembly, a diffuser that receives light...http://www.google.es/patents/US7212279?utm_source=gb-gplus-sharePatente US7212279 - Biometric identity verifiers and methods