Title:
LIGHT COLLIMATING ELEMENT, FINGERPRINT RECOGNITION APPARATUS, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/109841
Kind Code:
A1
Abstract:
A light collimating element, a fingerprint recognition apparatus (100) and an electronic device (200). The light collimating element comprises a light guide layer (110) and a photoresist layer (120) which are arranged in a stacked manner. The photoresist layer (120) is provided with a light channel (121). The light guide layer (110) comprises a first arc-shaped surface (111) and a second arc-shaped surface(112). The first arc-shaped surface (111) is opposite and spaced apart from the second arc-shaped surface (112). The first arc-shaped surface (111) and the second arc-shaped surface (112) form an optical path shaping device. The light is shaped by the optical path shaping device and then forms parallel light, and enters the light channel (121).
Inventors:
WU ANPING (CN)
WU YUTONG (CN)
WU YUTONG (CN)
Application Number:
PCT/CN2020/128915
Publication Date:
June 10, 2021
Filing Date:
November 16, 2020
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
G06K9/00
Foreign References:
| CN111046775A | 2020-04-21 | |||
| CN107590421A | 2018-01-16 | |||
| CN105550664A | 2016-05-04 | |||
| CN208141405U | 2018-11-23 | |||
| US20040252867A1 | 2004-12-16 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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