Title:
PHOTOGRAPHING OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2021/031274
Kind Code:
A1
Abstract:
A photographing optical lens (10, 20, 30, 40, 50, 60), comprising from an object side to an image side: a first lens (L1) having positive refractive power, a second lens (L2) having negative refractive power, and a third lens (L3) having positive refractive power. The focal length of the photographing optical lens (10, 20, 30, 40, 50, 60) is f; the focal length of the first lens (L1) is f1; the radius of curvature of the image side surface of the first lens (L1) is R2; the radius of curvature of the object side surface of the second lens (L2) is R3; the radius of curvature of the image side surface of the second lens (L2) is R4; the radius of curvature of the object side surface of the third lens (L3) is R5; the radius of curvature of the image side surface of the third lens (L3) is R6; the thickness of the second lens (L2) along the axis is d3; the thickness of the third lens (L3) along the axis is d5; the following relations are satisfied: 0.80≤f1/f≤1.10, 0.30≤d3/d5≤1.00, -20.00≤(R5+R6)/(R5-R6)≤-10.00, 5.00≤R2/f≤50.00, and -10.00≤(R3+R4)/(R3-R4)≤-4.00. The photographing optical lens (10, 20, 30, 40, 50, 60) has good optical properties and satisfies design requirements of wide angle and ultra-thinness.
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Inventors:
BIAN XUQI (CN)
CHEN JIA (CN)
CHEN JIA (CN)
Application Number:
PCT/CN2019/107149
Publication Date:
February 25, 2021
Filing Date:
September 21, 2019
Export Citation:
Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
G02B13/06; G02B13/00; G02B13/18
Foreign References:
| CN102662225A | 2012-09-12 | |||
| CN102466851A | 2012-05-23 | |||
| CN1206842A | 1999-02-03 | |||
| CN203838392U | 2014-09-17 | |||
| CN203759344U | 2014-08-06 | |||
| US20090284846A1 | 2009-11-19 | |||
| US20080180814A1 | 2008-07-31 |
Attorney, Agent or Firm:
GUAGDONG GUANGHE LAW FIRM (CN)
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