Title:
OPTICAL SYSTEM, LENS MODULE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/227016
Kind Code:
A1
Abstract:
An optical system, a lens module, and an electronic device. The optical system sequentially comprises, from an object side to an image side in an optical axis direction: a first lens (L1) having a negative refractive power; a second lens (L2) having a positive refractive power; a third lens (L3) having a negative refractive power; a fourth lens (L4) having a positive refractive power; a fifth lens (L5) having a negative refractive power; and the optical system satisfies the conditional expression: 0.5 < D1/ImgH < 0.73, wherein D1 is an optical effective radius of an object-side surface (S1) of the first lens (L1), and ImgH is half of the image height corresponding to the maximum field angle of the optical system. The five-sheet optical system having the structure can simultaneously meet the requirements of a larger field angle and high imaging quality.
Inventors:
XIE HAN (CN)
LIU BINBIN (CN)
LI MING (CN)
LIU BINBIN (CN)
LI MING (CN)
Application Number:
PCT/CN2021/091536
Publication Date:
November 03, 2022
Filing Date:
April 30, 2021
Export Citation:
Assignee:
JIANGXI JINGHAO OPTICAL CO LTD (CN)
International Classes:
G02B13/00; G02B9/60; G02B13/06; G02B13/18
Foreign References:
| CN112433340A | 2021-03-02 | |||
| CN105589179A | 2016-05-18 | |||
| CN104166220A | 2014-11-26 | |||
| CN108983390A | 2018-12-11 | |||
| US20200319432A1 | 2020-10-08 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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