The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2025
Filed:
Oct. 23, 2020
Ofilm Group Co., Ltd., Shenzhen, CN;
Jiangxi Jingchao Optical Co., Ltd., Nanchang, CN;
Jinhua Zou, Shenzhen, CN;
Ming Li, Shenzhen, CN;
OFILM GROUP CO., LTD., Shenzhen, CN;
JIANGXI JINGCHAO OPTICAL CO., LTD., Nanchang, CN;
Abstract
An optical lens sequentially includes, from an object side to an image side, a first lens having a negative focal power, a second lens having a negative focal power; a third lens having a positive focal power, a fourth lens having a negative focal power, a fifth lens having a negative focal power, a sixth lens having a positive focal power, and a seventh lens having a negative focal power. The optical lens satisfies the following relation: −5<f2/f1<15, maximum optical distortion ≤10%. Where, f1 is a focal length of the first lens, and f2 is a focal length of the second lens.