Title:
OPTICAL SYSTEM, CAMERA MODULE, ELECTRONIC DEVICE, AND CARRIER
Document Type and Number:
WIPO Patent Application WO/2023/015511
Kind Code:
A1
Abstract:
An optical system (100), comprising: a first lens (L1) having negative refractive power, the object side surface (S1) being concave; a second lens (L2) having positive refractive power, the object side surface (S3) being convex; a third lens (L3) having positive refractive power, the object side surface (S5) being convex and the image side surface (S6) being convex; a fourth lens (L4) having positive refractive power; a fifth lens (L5) having negative refractive power, the object side surface (S9) being concave and the image side surface (S10) being concave; a sixth lens (L6) having positive refractive power; and a seventh lens (L7) having negative refractive power, the object side surface (S13) being concave and the image side surface (S14) being concave. The optical system (100) satisfies: -5≤f7/f≤-2.5, f7 being the effective focal length of the seventh lens (L7), and f being the effective focal length of the optical system (100).
Inventors:
TSAI HSIUNG-YU (CN)
LE YUMING (CN)
ZHAO DI (CN)
LE YUMING (CN)
ZHAO DI (CN)
Application Number:
PCT/CN2021/112182
Publication Date:
February 16, 2023
Filing Date:
August 12, 2021
Export Citation:
Assignee:
OFILM GROUP CO LTD (CN)
TIANJIN OFILM OPTO ELECTRONICS CO LTD (CN)
TIANJIN OFILM OPTO ELECTRONICS CO LTD (CN)
International Classes:
G02B13/00; G02B13/18; G03B30/00
Foreign References:
| CN113031211A | 2021-06-25 | |||
| CN113138458A | 2021-07-20 | |||
| CN211293433U | 2020-08-18 | |||
| CN112731630A | 2021-04-30 | |||
| CN108919459A | 2018-11-30 | |||
| US20160377839A1 | 2016-12-29 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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