Title:
OPTICAL SYSTEM, IMAGE CAPTURING MODULE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/141514
Kind Code:
A1
Abstract:
An optical system (100), comprising, in order from an object side to an image side: a first lens (L1) having negative refractive power, an object side surface (S1) thereof being concave near an optical axis (110); a second lens (L2) having positive refractive power, an object side surface (S3) thereof being convex near the optical axis (110); a third lens (L3) having refractive power, an object side surface (S5) thereof being convex near the optical axis (110), and an image side surface (L6) thereof being concave nearing the optical axis (110); a fourth lens (L4) having positive refractive power; a fifth lens (L5) having refractive power; a sixth lens (L6) having positive refractive power; and a seventh lens (L7) having negative refractive power. The optical system (100) satisfies the following conditional expression: |SAG1/f1|*100≤2, where SAG1 is a rise of the object side surface (S1) of the first lens (L1), and f1 is an effective focal length of the first lens (L1).
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Inventors:
XIE HAN (CN)
LIU BINBIN (CN)
LI MING (CN)
LIU BINBIN (CN)
LI MING (CN)
Application Number:
PCT/CN2020/142404
Publication Date:
July 07, 2022
Filing Date:
December 31, 2020
Export Citation:
Assignee:
OFILM GROUP CO LTD (CN)
JIANGXI JINGCHAO OPTICAL CO LTD (CN)
JIANGXI JINGCHAO OPTICAL CO LTD (CN)
International Classes:
G02B13/00; G02B9/64; G02B13/18
Foreign References:
CN110361854A | 2019-10-22 | |||
CN111123478A | 2020-05-08 | |||
US20160139372A1 | 2016-05-19 | |||
US20200355889A1 | 2020-11-12 | |||
CN112612117A | 2021-04-06 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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