Title:
OPTICAL SYSTEM, CAMERA MODULE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/160120
Kind Code:
A1
Abstract:
An optical system (10), which sequentially comprises, from an object side to an image side along an optical axis (101): a first lens (L1) having a positive refractive power, wherein an object-side surface (S1) thereof is a convex surface; a second lens (L2) having a negative refractive power; a third lens (L3) having a refractive power; and a fourth lens (L4) having a refractive power, wherein an image-side surface (S8) thereof is a convex surface. The optical system (10) also satisfies the relationship: 85.0 < 43*f/Imgh < 122.0, wherein f is an effective focal length of the optical system (10), and Imgh is an image height corresponding to the maximum field of view of the optical system (10).
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Inventors:
LIU BINBIN (CN)
LI MING (CN)
ZOU HAIRONG (CN)
ZOU JINHUA (CN)
DANG XUWEN (CN)
LI MING (CN)
ZOU HAIRONG (CN)
ZOU JINHUA (CN)
DANG XUWEN (CN)
Application Number:
PCT/CN2021/073941
Publication Date:
August 04, 2022
Filing Date:
January 27, 2021
Export Citation:
Assignee:
OFILM GROUP CO LTD (CN)
JIANGXI JINGCHAO OPTICAL CO LTD (CN)
JIANGXI JINGCHAO OPTICAL CO LTD (CN)
International Classes:
G02B13/18; G02B9/34; G02B13/00
Foreign References:
| TWI564612B | 2017-01-01 | |||
| US20160291288A1 | 2016-10-06 | |||
| CN107884906A | 2018-04-06 | |||
| CN110261997A | 2019-09-20 | |||
| US20190011668A1 | 2019-01-10 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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