Title:
COMPOSITE LENS AND OPTICAL SYSTEM COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/246446
Kind Code:
A1
Abstract:
A composite lens and an optical system comprising same, belonging to the technical field of optical superlenses. The composite lens comprises a first lens (10) and a second lens (20) which are sequentially arranged from the object side to the image side, the first lens (10) being a refractive lens having a positive focal length, the second lens (20) being a superlens, and both the object-side surface and the image-side surface of the first lens (10) being aspheric surfaces. The first lens (10) and the second lens (20) further satisfy: t12≤0.5mm; (I); and R1i>R1O, wherein the t12 is the distance between the first lens (10) and the second lens (20), the f1 is the focal length of the first lens (10), the f2 is the focal length of the second lens (20); the R1o is the radius of curvature of the object-side surface of the first lens (10), and the R1i is the radius of curvature of the image-side surface of the first lens (10). Being used in an optical system, the composite lens promotes the miniaturization and light weight of a five-piece optical system.
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/CN2023/097230
Publication Date:
December 28, 2023
Filing Date:
May 30, 2023
Export Citation:
Assignee:
SHENZHEN METALENX TECH CO LTD (CN)
International Classes:
G02B3/00; G02B13/00
Domestic Patent References:
| WO2022051971A1 | 2022-03-17 |
Foreign References:
| CN111257975A | 2020-06-09 | |||
| CN112630868A | 2021-04-09 | |||
| CN112748521A | 2021-05-04 | |||
| CN114578642A | 2022-06-03 | |||
| CN114660780A | 2022-06-24 | |||
| CN114859447A | 2022-08-05 | |||
| CN115016099A | 2022-09-06 | |||
| CN115032766A | 2022-09-09 | |||
| CN217467326U | 2022-09-20 | |||
| CN217639612U | 2022-10-21 | |||
| US20220082794A1 | 2022-03-17 |
Attorney, Agent or Firm:
FAIRSKY LAW OFFICE (CN)
Download PDF:
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