Title:
OPTICAL LENS
Document Type and Number:
WIPO Patent Application WO/2023/143239
Kind Code:
A1
Abstract:
An optical lens, which in total has six lenses, and which, along an optical axis from an object side to an image plane, sequentially comprises: a first lens (L1) having a negative optical power, the object side surface (S1) being convex, and the image side surface (S2) being concave; a second lens (L2) having a positive optical power, the object side surface (S3) being concave, and the image side surface (S4) being convex; a stop (ST); a third lens (L3) having a positive optical power, the object side surface (S5) and the image side surface (S6) both being convex; a fourth lens (L4) having a positive optical power, the object side surface (S7) and the image side surface (S8) both being convex; a fifth lens (L5) having a negative optical power, the object side surface (S9) and the image side surface (S10) both being concave; and a sixth lens (L6) having a positive optical power, the object side surface (S11) being convex, and the image side surface (S12) being concave; the fourth lens (L4) and the fifth lens (L5) are adhered together to form a cemented lens; and the real image height IH corresponding to the maximal field of view and the effective focal length f of the optical lens satisfy: 0.6 < f / IH < 0.7.
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Inventors:
CHEN WEIJIAN (CN)
XU YUXUAN (CN)
XU YUXUAN (CN)
Application Number:
PCT/CN2023/072573
Publication Date:
August 03, 2023
Filing Date:
January 17, 2023
Export Citation:
Assignee:
JIANGXI LIANCHUANG ELECT CO LTD (CN)
International Classes:
G02B9/62
Foreign References:
| CN114114651A | 2022-03-01 | |||
| CN106443969A | 2017-02-22 | |||
| CN112305715A | 2021-02-02 | |||
| CN103576294A | 2014-02-12 | |||
| CN110908088A | 2020-03-24 | |||
| CN111830672A | 2020-10-27 | |||
| KR101480333B1 | 2015-01-08 |
Attorney, Agent or Firm:
SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE (CN)
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