Title:
PHOTOGRAPHING OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2022/062073
Kind Code:
A1
Abstract:
A photographing optical lens (10), relating to the field of optical lenses, and comprising a total of five lenses, which are sequentially from an object side to an image side: a first lens (L1) having positive refractive power, a second lens (L2) having positive refractive power, a third lens (L3), a fourth lens (L4) having positive refractive power, and a fifth lens (L5) having negative refractive power. The focal length of the first lens (L1) is f1, the focal length of the fifth lens (L5) is f5, the center radius of curvature of an object side surface of the second lens (L2) is R3, the center radius of curvature of an image side surface of the second lens (L2) is R4, the center radius of curvature of an object side surface of the fourth lens (L4) is R7, the center radius of curvature of an image side surface of the fourth lens (L4) is R8, and the following relations are satisfied: -8.00≤f1/f5≤-3.00; R3/R4≤-2.00; 3.00≤(R7+R8)/(R7-R8)≤15.00. The photographing optical lens (10) has good optical properties, and satisfies the design requirements of wide angle and ultra-thinness.
Inventors:
CHEN CHENXIYANG (CN)
CHEN JIA (CN)
CHEN JIA (CN)
Application Number:
PCT/CN2020/125712
Publication Date:
March 31, 2022
Filing Date:
November 01, 2020
Export Citation:
Assignee:
AAC OPTICS SHENZHEN CO LTD (CN)
International Classes:
G02B13/00; G02B9/60
Domestic Patent References:
| WO2013058111A1 | 2013-04-25 |
Foreign References:
| CN110596865A | 2019-12-20 | |||
| CN111487746A | 2020-08-04 | |||
| CN107085277A | 2017-08-22 | |||
| CN105842827A | 2016-08-10 | |||
| CN111239971A | 2020-06-05 |
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
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