Title:
IMAGING LENS WHICH TAKES INTO CONSIDERATION IMAGE PROCESSING-BASED DISTORTION CORRECTION, CAMERA MODULE AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/232242
Kind Code:
A1
Abstract:
An imaging lens (21), which takes into consideration image processing-based distortion correction, includes: at least one lens having a positive refractive power, and at least one lens having a negative refractive power, wherein the imaging lens (21) satisfies the following conditional expressions, (∑D /Ymax) × (Fno + 1.8) ≤ 5.4, 0.01 ≤ 0.4 / (Dist_A-Dist_B) ≤ 0.5, where ∑D is a full length of the imaging lens (21), Ymax is a maximum image height, Fno is an F number, Dist_A is a distortion amount before image processing-based distortion correction is performed at an image height of 50% of the maximum image height, and Dist_B is a distortion amount before image processing-based distortion correction is performed at an image height of 10% of the maximum image height.
Inventors:
KATSURAGI DAIGO (JP)
Application Number:
PCT/CN2020/091066
Publication Date:
November 25, 2021
Filing Date:
May 19, 2020
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
G02B13/18; G02B13/00
Domestic Patent References:
| WO2018236344A1 | 2018-12-27 |
Foreign References:
| CN110361852A | 2019-10-22 | |||
| CN110737072A | 2020-01-31 | |||
| CN208239711U | 2018-12-14 | |||
| CN101363954A | 2009-02-11 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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