Title:
OPTICAL CAMERA LENS
Document Type and Number:
WIPO Patent Application WO/2022/047985
Kind Code:
A1
Abstract:
An optical camera lens (10), comprising four lenses. From an object side to an image side, the four lenses sequentially are: a first lens (L1) having negative refractive power, a second lens (L2) having positive refractive power, a third lens (L3) having positive refractive power, and a fourth lens (L4) having negative refractive power. The focal length of the optical camera lens (10) is f, the focal length of the first lens (L1) is f1, the focal length of the second lens (L2) is f2, the center radius of curvature of the object side surface of the second lens (L2) is R3, the center radius of curvature of the image side surface of the second lens (L2) is R4, the center radius of curvature of the object side surface of the fourth lens (L4) is R7, the center radius of curvature of the image side surface of the fourth lens (L4) is R8, the axial thickness of the third lens (L3) is d5, an axial distance between the image side surface of the third lens (L3) and the object side surface of the fourth lens (L4) is d6, and the following relational expressions are satisfied: -3.00≤f1/f≤-1.20, 4.00≤f2/f≤9.00, 15.00≤R4/R3, 2.50≤R7/R8≤6.00, and 10.00≤d5/d6≤20.00. The optical camera lens (10) has good optical properties, and can satisfy the design requirements of large aperture and wide angle.
Inventors:
ZHANG JUN (CN)
CHEN JIA (CN)
CHEN JIA (CN)
Application Number:
PCT/CN2020/125706
Publication Date:
March 10, 2022
Filing Date:
October 31, 2020
Export Citation:
Assignee:
AAC OPTICS SHENZHEN CO LTD (CN)
International Classes:
G02B9/58; G02B13/00; G02B13/06; G02B13/18
Foreign References:
| CN103969808A | 2014-08-06 | |||
| CN111505797A | 2020-08-07 | |||
| CN105549180A | 2016-05-04 | |||
| CN107422459A | 2017-12-01 | |||
| JPH08304710A | 1996-11-22 | |||
| JP2015018086A | 2015-01-29 |
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
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