Title:
LOW-REFLECTION STRUCTURE, LENS TUBE, LENS, SPACER, PHOTOGRAPHING MODULE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/081779
Kind Code:
A1
Abstract:
Disclosed are a low-reflection structure, a lens tube, a lens, a spacer, a photographing module, and an electronic device. The low-reflection structure comprises a light-transmitting area (11) and an extinction face (12) arranged on a peripheral side of the light-transmitting area (11) in a surrounding manner; a plurality of extinction groups (13) are arranged on the extinction face (12); the plurality of extinction groups (13) are arranged in a circumferential direction around the light-transmitting area (11); each extinction group (13) comprises a plurality of extinction structures (131); the plurality of extinction structures (131) of each extinction group (13) are arranged in a radial direction of the light-transmitting area (11); and a plurality of extinction structures (131) are regularly arranged on the extinction face (12) of the low-reflection structure. A reflection area is greatly reduced, and an extinction effect is enhanced.
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Inventors:
HU DEZHONG (CN)
WU JUNFU (CN)
ZOU HAIRONG (CN)
WU JUNFU (CN)
ZOU HAIRONG (CN)
Application Number:
PCT/CN2019/114129
Publication Date:
May 06, 2021
Filing Date:
October 29, 2019
Export Citation:
Assignee:
NANCHANG O FILM PREC OPTICAL PRODUCT CO LTD (CN)
International Classes:
G02B5/02; G02B7/02; G03B11/00
Foreign References:
| CN108227106A | 2018-06-29 | |||
| CN107064906A | 2017-08-18 | |||
| CN108490714A | 2018-09-04 | |||
| US20160119520A1 | 2016-04-28 | |||
| JP2007199335A | 2007-08-09 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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