Invention Grant
- Patent Title: Thin, multi-lens, optical fingerprint sensor adapted to image through cell phone displays
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Application No.: US17512106Application Date: 2021-10-27
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Publication No.: US11869267B2Publication Date: 2024-01-09
- Inventor: Jau-Jan Deng , Kuang-Ju Wang , Chun-Jen Wei
- Applicant: OmniVision Technologies, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: OmniVision Technologies, Inc.
- Current Assignee: OmniVision Technologies, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: COZEN O'CONNOR
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/46 ; G02B3/00 ; G02B5/00 ; G02B5/20 ; G06V40/13 ; G06V10/40 ; G06V40/12

Abstract:
A multiple-lens optical fingerprint reader for reading fingerprints through a display has a spacer; and multiple microlenses with concave and convex surfaces in a microlens array, each microlens of multiple lenses focuses light arriving at that microlens from a finger adjacent the display through the spacer forms an image on associated photosensors on a photosensor array of an image sensor integrated circuit. A method of verifying identity of a user includes illuminating a finger of the user with an OLED display; focusing light from the finger through arrayed microlenses onto a photosensor array, reading the array into overlapping electronic fingerprint images; extracting features from the overlapping fingerprint images or from a stitched fingerprint image, and comparing the features to features of at least one user in a library of features and associated with one or more fingers of one or more authorized users.
Public/Granted literature
- US20230131591A1 THIN, MULTI-LENS, OPTICAL FINGERPRINT SENSOR ADAPTED TO IMAGE THROUGH CELL PHONE DISPLAYS Public/Granted day:2023-04-27
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