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Patent Searching and Data


Title:
PHOTOGRAPHING OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2021/114233
Kind Code:
A1
Abstract:
Disclosed is a photographing optical lens (10), relating to the field of optical lenses, with the photographing optical lens (10) sequentially comprising, from an object side to an image side, a first lens (L1) having a positive refractive power, a second lens (L2) having a negative refractive power, a third lens (L3) having a positive refractive power, a fourth lens (L4) having a positive refractive power, a fifth lens (L5) having a negative refractive power, a sixth lens (L6) having a positive refractive power, a seventh lens (L7) having a positive refractive power, and a eighth lens (L8) having a negative refractive power, wherein the focal length of the photographing optical lens (10) is f, the focal length of the fourth lens (L4) is f4, the Abbe number of the first lens (L1) is v1, and the Abbe number of the second lens (L2) is v2, which satisfies the following relational expressions: 2.90 ≤ v1/v2 ≤ 4.00; and 2.00 ≤ f4/f ≤ 6.00. The photographing optical lens (10) meets the design requirements of a large aperture, a wide angle and ultra-thinness, while also having a good optical performance.

Inventors:
GE SHIYU (CN)
Application Number:
PCT/CN2019/125197
Publication Date:
June 17, 2021
Filing Date:
December 13, 2019
Export Citation:
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Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
G02B13/00; G02B13/06; G02B13/18
Foreign References:
CN109870788A2019-06-11
CN209690597U2019-11-26
CN108121053A2018-06-05
CN107741630A2018-02-27
JP3101738B22000-10-23
CN107831588A2018-03-23
CN104808332A2015-07-29
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
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