The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2022
Filed:
Aug. 14, 2018
Lumileds Llc, San Jose, CA (US);
Rob Engelen, Eindhoven, NL;
Emanuel Stassar, Sprang Capelle, NL;
Lumileds LLC, San Jose, CA (US);
Abstract
A biometric identification system and a method for biometric authentication are described. A biometric authentication system includes at least one light source comprising at least one of a vertical surface emitting laser (VCSEL) or a VCSEL array configured to provide an illumination beam when the biometric authentication system is turned on. The system also includes an optical element configured to broaden the illumination beam and direct the illumination beam towards the portion of the object so as to generate at least one corresponding image response. The system also includes an image sensing unit configured to receive the at least one corresponding image response, capture a speckle pattern in the image response and form at least one of a computer readable image or data representing a speckle contrast in the speckle pattern.