Title:
PHOTOGRAPHING OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2021/114250
Kind Code:
A1
Abstract:
Disclosed is a photographing optical lens (10, 20, 30). The photographing optical lens (10, 20, 30) sequentially comprises, from an object side to an image side, a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), a fifth lens (L5), a sixth lens (L6), a seventh lens (L7), and an eighth lens (L8), wherein the focal length of the photographing optical lens (10, 20, 30) is f, the focal length of the first lens (L1) is f1, the focal length of the second lens (L2) is f2, and the refractive index of the eighth lens (L8) is n8, which satisfy the following relational expressions: 1.95 ≤ f1/f ≤ 3.00; f2 ≤ 0; and 1.55 ≤ n8 ≤ 1.70. The photographing optical lens (10, 20, 30) has good optical properties, such as a large aperture, a wide angle, and ultra-thinness.
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Inventors:
SUN WEN (CN)
Application Number:
PCT/CN2019/125242
Publication Date:
June 17, 2021
Filing Date:
December 13, 2019
Export Citation:
Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
G02B13/00
Foreign References:
| CN110068915A | 2019-07-30 | |||
| CN109541786A | 2019-03-29 | |||
| CN107643586A | 2018-01-30 | |||
| CN108227145A | 2018-06-29 | |||
| US6078435A | 2000-06-20 | |||
| US4368953A | 1983-01-18 |
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
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