Title:
CAMERA OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2021/031235
Kind Code:
A1
Abstract:
The present application relates to a camera optical lens, the camera optical lens sequentially includes from the object side to the image side: a first lens having positive refractive power, a second lens having positive refractive power, a third lens having positive refractive power and a fourth lens having negative refractive power. Wherein, the overall focal length of the camera optical lens is f, the focal length of the second lens is f2, the on-axis thickness of the third lens is d5, the on-axis distance from the image side surface of the third lens to the object side surface of the fourth lens is d6, the radius of curvature of the object side surface of the third lens is R5, the radius of curvature of the image side surface of the third lens is R6, the radius of curvature of the object side surface of the second lens is R3, the radius of curvature of the image side surface of the second lens is R4, the following relationships are satisfied: 3.00≤f2/f≤5.00; 13.00≤d5/d6≤25.00; 3.00≤(R5+R6)/(R5-R6)≤10.00; 5.00≤R3/R4≤50.00. The camera optical lens provided by the present application can meet the design requirements of large aperture and wide angling while having good optical performance.
Inventors:
CHEN JIEKANG (CN)
Application Number:
PCT/CN2019/103598
Publication Date:
February 25, 2021
Filing Date:
August 30, 2019
Export Citation:
Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
G02B13/06; G02B13/00; G02B13/18
Foreign References:
| CN109581623A | 2019-04-05 | |||
| CN109387919A | 2019-02-26 | |||
| CN108279483A | 2018-07-13 | |||
| CN204009199U | 2014-12-10 | |||
| US20140184880A1 | 2014-07-03 |
Attorney, Agent or Firm:
SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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