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Title:
PHOTOGRAPHING OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2021/127852
Kind Code:
A1
Abstract:
A large-aperture, wide-angle and ultra-thin photographing optical lens (10), from an object side to an image side, sequentially comprising: a first lens (L1) having negative refractive power, a second lens (L2) having positive refractive power, a third lens (L3) having negative refractive power, a fourth lens (L4) having positive refractive power, and a fifth lens (L5). The photographing optical lens satisfies the following relational expressions: -5.00≤f1/f≤-3.00; -3.00≤f3/f≤-1.50; 3.00≤(R9+R10)/(R9-R10)≤10.00; and 3.50≤d7/d8≤6.00, wherein f, f1, and f3 are respectively the focal lengths of the photographing optical lens (10), the first lens (L1), and the third lens (L3), R9 and R10 are respectively the curvature radii of the object side surface and the image side surface of the fifth lens, d7 is the axial thickness of the fourth lens (L4), and d8 is the axial distance from the image side surface of the fourth lens (L4) to the object side surface of the fifth lens (L5).

Inventors:
MA JIAN (CN)
Application Number:
PCT/CN2019/127470
Publication Date:
July 01, 2021
Filing Date:
December 23, 2019
Export Citation:
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Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
G02B9/60; G02B13/18
Foreign References:
CN105842827A2016-08-10
US20170261726A12017-09-14
US20140085735A12014-03-27
CN108983390A2018-12-11
CN106886080A2017-06-23
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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