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. 09, 2020
Filed:
Jun. 13, 2018
Egis Technology Inc., Taipei, TW;
EGIS TECHNOLOGY INC., Taipei, TW;
Abstract
An optical fingerprint sensor is provided. The optical fingerprint sensor includes a sensing module. The sensing module includes a light sensing layer and a light filter layer disposed above the light sensing layer. The light sensing layer includes a plurality of photo detectors arranged in a sensing array. The light filter layer includes a plurality of collimators. The collimators are divided into a plurality of collimator groups corresponding to the photo detectors, and the number of collimator groups is equal to the number of photo detectors. Each of the collimator groups comprises the same number of collimators arranged in a specific pattern and disposed above the corresponding photo detector. The photo detectors receive reflected light from a user's finger through the collimators of the corresponding collimator groups.