Title:
OPTICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/207891
Kind Code:
A1
Abstract:
An embodiment of the present invention relates to the technical field of optical systems, and provides an optical system. The optical system comprises: a first lens, a second lens and a third lens which are sequentially arranged from an object side to an image side on the same optical axis. The first lens and the second lens are configured as super lenses. The first lens is configured as a diaphragm of the optical system. The third lens is configured as a refractive lens. The focal length of the refractive lens is positive. The optical system at least satisfies: (I)≥24.5; min{t12,t23}≥0.05mm, in which f is the focal length of the optical system, f3 is the focal length of the third lens (3), t12 is the distance between the first lens and the second lens, t23 is the distance between the second lens (2) and the third lens, and min{t12,t23} is the minimum value in t12 and t23. According to the embodiment of the present invention, the miniaturization and weight reduction of the optical system are achieved.
Inventors:
HAO CHENGLONG (CN)
TAN FENGZE (CN)
ZHU RUI (CN)
ZHU JIAN (CN)
TAN FENGZE (CN)
ZHU RUI (CN)
ZHU JIAN (CN)
Application Number:
PCT/CN2023/090239
Publication Date:
November 02, 2023
Filing Date:
April 24, 2023
Export Citation:
Assignee:
SHENZHEN METALENX TECH CO LTD (CN)
International Classes:
G02B1/00; G02B13/00; G02B3/08
Foreign References:
| CN114779437A | 2022-07-22 | |||
| CN217279087U | 2022-08-23 | |||
| CN113703080A | 2021-11-26 | |||
| US20210318466A1 | 2021-10-14 | |||
| CN103367931A | 2013-10-23 | |||
| CN113167923A | 2021-07-23 | |||
| CN113466974A | 2021-10-01 | |||
| CN114047637A | 2022-02-15 | |||
| CN114354141A | 2022-04-15 | |||
| US20180074226A1 | 2018-03-15 | |||
| US20180074227A1 | 2018-03-15 |
Attorney, Agent or Firm:
FAIRSKY LAW OFFICE et al. (CN)
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