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.

Date of Patent:
Jun. 09, 2020

Filed:

Jan. 30, 2018
Applicant:

Silicon Optronics, Inc., Hsinchu, TW;

Inventor:

Xinping He, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/28 (2006.01); G06F 3/042 (2006.01); G06K 9/20 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0421 (2013.01); G06K 9/0004 (2013.01); G06K 9/209 (2013.01); G06F 2203/04103 (2013.01);
Abstract

The invention provides an optical fingerprint sensor including: an image sensing layer having an array composed of a plurality of sensing blocks; a collimating layer disposed on the image sensing layer and having a plurality of through holes penetrating from the top surface to the bottom surface of the collimating layer; a light guiding layer disposed in the collimating layer, and a glass cover layer disposed on the light guiding layer, the top surface of the glass cover layer receiving a finger touch, wherein the image resolution of the optical fingerprint sensor is defined by the number of sensing blocks, and there are a plurality of through holes directly above each of the sensing blocks.


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