Title:
PRIME LENS
Document Type and Number:
WIPO Patent Application WO/2023/109685
Kind Code:
A1
Abstract:
A prime lens, comprising a first lens (110), a second lens (120), a third lens (130), a fourth lens (140) and a fifth lens (150) sequentially arranged from an object plane to an image plane along an optical axis, wherein the first lens (110) has a negative focal power, the second lens (120) has a negative focal power, the third lens (130) has a positive focal power, the fourth lens (140) has a negative focal power, and the fifth lens (150) has a positive focal power; the fourth lens (140) and the fifth lens (150) form a cemented lens group (10); and the focal power of each lens satisfies: -0.7 < F1/F0 < -0.5, -1.4 < F2/F0 < -1.2, 0.91 < F3/F0 < 0.94, -2.0 < F4/F0 < -1.75, 2.3 < F5/F0 < 2.5 and 3.3 < F/F0 < 3.45.
Inventors:
WANG LE (CN)
MI SHILONG (CN)
HAN NI (CN)
OU PENGFEI (CN)
MI SHILONG (CN)
HAN NI (CN)
OU PENGFEI (CN)
Application Number:
PCT/CN2022/138015
Publication Date:
June 22, 2023
Filing Date:
December 09, 2022
Export Citation:
Assignee:
DONGGUAN YUTONG AUTOMOTIVE VISION CO LTD (CN)
International Classes:
G02B13/06; G02B13/18
Foreign References:
| CN102289052A | 2011-12-21 | |||
| CN102109660A | 2011-06-29 | |||
| CN103605201A | 2014-02-26 | |||
| CN104360462A | 2015-02-18 | |||
| CN108318995A | 2018-07-24 | |||
| US20190317299A1 | 2019-10-17 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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