Title:
OPTICAL IMAGING SYSTEM, IMAGE CAPTURING MODULE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/052051
Kind Code:
A1
Abstract:
An optical imaging system (10), an image capturing module (100), and an electronic device (1000). The optical imaging system (10) comprises, in order from the object side to the image side: a first lens (L1) having negative refractive power; a second lens (L2) and a third lens (L3) having refractive power; a fourth lens (L4) having positive refractive power, the object side surface thereof being a convex surface at an optical axis and the image side surface thereof being a convex surface at the optical axis; a fifth lens (L5) having negative refractive power; a sixth lens (L6) having positive refractive power, the image side surface thereof being a convex surface at the optical axis; and a seventh lens (L7) having negative refractive power, the object side surface thereof being a convex surface at the optical axis and the image side surface thereof being a concave surface at the optical axis. The optical imaging system (10) satisfies the following conditional expression: Almax≤30°; a tangent plane is provided at each optical effective region of the object side surfaces and image side surfaces of the first lens (L1) to the seventh lens (L7) of the optical imaging system (10), and the tangent plane intersects with a plane perpendicular to the optical axis to form an acute included angle, and Almax is the maximum value of the acute included angle.
Inventors:
TAN YIXIANG (CN)
LIU XIU (CN)
DANG XUWEN (CN)
LI MING (CN)
LIU XIU (CN)
DANG XUWEN (CN)
LI MING (CN)
Application Number:
PCT/CN2020/114842
Publication Date:
March 17, 2022
Filing Date:
September 11, 2020
Export Citation:
Assignee:
OFILM GROUP CO LTD (CN)
NANCHANG OUFEI PREC OPTICAL PRODUCT CO LTD (CN)
NANCHANG OUFEI PREC OPTICAL PRODUCT CO LTD (CN)
International Classes:
G02B13/00; G02B9/64; G02B13/18
Foreign References:
| CN107367819A | 2017-11-21 | |||
| CN107589522A | 2018-01-16 | |||
| CN108427172A | 2018-08-21 | |||
| CN108427173A | 2018-08-21 | |||
| CN107664810A | 2018-02-06 | |||
| TW201701005A | 2017-01-01 | |||
| US20160139372A1 | 2016-05-19 | |||
| US20170242220A1 | 2017-08-24 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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