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Title:
PHOTOGRAPHING OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2021/031236
Kind Code:
A1
Abstract:
A photographing optical lens (10), sequentially 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, a third lens (L3) having negative refractive power, a fourth lens (L4) having positive refractive power, and a fifth lens (L5) having negative refractive power. The curvature radiuses of an object side surface and an image side surface of the first lens (L1) are respectively R1 and R2; the curvature radiuses of an object side surface and an image side surface of the second lens (L2) are respectively R3 and R4; the curvature radiuses of an object side surface and an image side surface of the third lens (L3) are respectively R5 and R6; the curvature radiuses of an object side surface and an image side surface of the fifth lens (L5) are respectively R9 and R10; an on-axis distance between the third lens (L3) and the fourth lens (L4) and an on-axis distance between the fourth lens (L4) and the fifth lens (L5) are respectively d6 and d8; and an on-axis thickness of the fifth lens (L5) is d9. The above parameters satisfy that: 0.04≤R1/R2≤0.07; -3.60≤R3/R4≤-2.50; 1.55≤R5/R6≤1.80; 2.80≤R9/R10≤3.20; 0.65≤d8/d9≤0.85; and 0.56≤d6/d8≤0.60.

Inventors:
LIN CHIACHENG (CN)
CHEN JIA (CN)
HIROYUKI TERAOKA (JP)
Application Number:
PCT/CN2019/103601
Publication Date:
February 25, 2021
Filing Date:
August 30, 2019
Export Citation:
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Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
G02B13/00; G02B9/60; G02B13/06; G02B13/18
Foreign References:
CN105093493A2015-11-25
KR20180102741A2018-09-18
CN105892014A2016-08-24
CN106980168A2017-07-25
CN106802472A2017-06-06
CN106802467A2017-06-06
CN201926811U2011-08-10
US20180164546A12018-06-14
CN108459391A2018-08-28
CN106054354A2016-10-26
CN105739059A2016-07-06
CN201965293U2011-09-07
US20140063596A12014-03-06
US20120081595A12012-04-05
KR20120094730A2012-08-27
Attorney, Agent or Firm:
SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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