Title:
OPTICAL LENS AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/222926
Kind Code:
A1
Abstract:
The present invention provides an optical lens and an imaging device. The optical lens comprises in sequence from the object side to the image side: a stop; a first lens that has a positive focal power, the object side surface thereof being a convex surface, and the image side surface thereof being a concave surface near the optical axis and having at least one inflection point; a second lens that has a negative focal power, the object side surface thereof being a concave surface near the optical axis and having at least one inflection point, and the image side surface thereof being a concave surface; a third lens that has a positive focal power, the object side surface thereof being a convex surface, and the image side surface thereof being a concave surface; a fourth lens that has a negative focal power, the object side surface thereof being a concave surface, and the image side surface thereof being a convex surface; a fifth lens that has a positive focal power, the object side surface thereof being a concave surface near the optical axis, and the image side surface thereof being a convex surface; and a sixth lens that has a negative focal power, the object side surface thereof being a concave surface near the optical axis, and the image side surface thereof being a concave surface near the optical axis and having at least one inflection point. In said optical lens, the outer diameter of the head portion thereof is small and the total length thereof is short, which can better satisfy area and volume miniaturization of a lens.
Inventors:
YU XIAOZHI (CN)
ZENG HAOJIE (CN)
LIU XUMING (CN)
ZENG HAOJIE (CN)
LIU XUMING (CN)
Application Number:
PCT/CN2022/087694
Publication Date:
October 27, 2022
Filing Date:
April 19, 2022
Export Citation:
Assignee:
JIANGXI LIANYI OPTICS CO LTD (CN)
International Classes:
G02B13/00; G02B13/18
Foreign References:
| CN112987262A | 2021-06-18 | |||
| CN104423017A | 2015-03-18 | |||
| CN211786334U | 2020-10-27 | |||
| CN111781706A | 2020-10-16 | |||
| CN111722368A | 2020-09-29 |
Attorney, Agent or Firm:
SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE (CN)
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