Title:
OPTICAL SYSTEM, IMAGING APPARATUS COMPRISING SAME, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/246451
Kind Code:
A1
Abstract:
The present application provides an optical system, and relates to the technical field of optical imaging. The optical system comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens; wherein at least one of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens is a metalens, and the rest are aspheric refractive lenses; moreover, at least one aspheric surface is included in the surfaces of the first and second aspheric refractive lenses from the image side to the object side of the optical system, and the aspheric surface comprises an inflection point; and the optical system at least further satisfies: 0.05mm ≤ dML ≤2mm; |f mL|/f ≥ 45; f is the focal length of the optical system; EPD is the entrance pupil diameter of the optical system; dML is the thickness of the metalens; and fML is the focal length of the metalens. The optical system further satisfies large aperture and small total system length.
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/CN2023/097326
Publication Date:
December 28, 2023
Filing Date:
May 31, 2023
Export Citation:
Assignee:
SHENZHEN METALENX TECH CO LTD (CN)
International Classes:
G02B13/00; G02B3/00; G02B13/18
Domestic Patent References:
| WO2020201111A1 | 2020-10-08 |
Foreign References:
| CN115032766A | 2022-09-09 | |||
| CN217467326U | 2022-09-20 | |||
| CN112748521A | 2021-05-04 | |||
| CN114217413A | 2022-03-22 | |||
| CN114578513A | 2022-06-03 |
Attorney, Agent or Firm:
FAIRSKY LAW OFFICE et al. (CN)
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