公开(公告)号：US12287464B2

公开(公告)日：2025-04-29

申请号：US18086522

申请日：2022-12-21

Applicant: OmniVision Technologies, Inc.

Inventor： Kuang-Ju Wang ,  Jau-Jan Deng ,  I-Lung Lu

IPC: G02B13/00 ,  G02B13/06 ,  H01L27/146 ,  H04N23/55 ,  G02B9/12 ,  G03B9/02

Abstract: A chip-level camera includes an image sensor; a concave L1 lens element on an inside surface of a first substrate; a convex L2 lens element on a first surface of a second substrate; a diaphragm stop on a second surface of the second substrate or on a first surface of a third substrate, the diaphragm stop between the second and third substrates; a convex L3 lens element on a second surface of the third substrate spaced from the image sensor; a first spacer holding first substrate at a predetermined distance from the second substrate; and a second spacer holding the second substrate a predetermined distance from the image sensor. In embodiments, lens element L1 has concave aspheric radius of R1, and lens L2 convex aspheric radius of R2, such that 1.3

公开(公告)号：US11869267B2

公开(公告)日：2024-01-09

申请号：US17512106

申请日：2021-10-27

Applicant: OmniVision Technologies, Inc.

Inventor： Jau-Jan Deng ,  Kuang-Ju Wang ,  Chun-Jen Wei

IPC: G06K9/00 ,  G06K9/46 ,  G02B3/00 ,  G02B5/00 ,  G02B5/20 ,  G06V40/13 ,  G06V10/40 ,  G06V40/12

CPC classification number: G06V40/1318 ,  G02B3/0037 ,  G02B5/003 ,  G02B5/208 ,  G06V10/40 ,  G06V40/1335 ,  G06V40/1365

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.