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:
Feb. 13, 2024
Filed:
Jul. 11, 2019
Zhejiang Sunny Optics Co., Ltd., Zhejiang, CN;
Yuanlin Jia, Zhejiang, CN;
Wuchao Xu, Zhejiang, CN;
Fujian Dai, Zhejiang, CN;
Liefeng Zhao, Zhejiang, CN;
ZHEJIANG SUNNY OPTICS CO., LTD., Ningbo, CN;
Abstract
An optical imaging lens sequentially includes, from an object side to an image side along an optical axis: a first lens (E) with refractive power; a second lens (E) with positive refractive power; a third lens (E) with positive refractive power; a fourth lens (E) with refractive power; a fifth lens (E) with positive refractive power; a sixth lens (E) with refractive power; and a seventh lens (E) with refractive power. A total effective focal length f of the optical imaging lens and a curvature radius R4 of an image-side surface of the second lens meet 0.6<R4/f<1.5. TTL is a distance from an object-side surface of the first lens to an imaging surface of the optical imaging lens on the optical axis, and ImgH is a half of a diagonal length of an effective pixel region on the imaging surface of the optical imaging lens, TTL and ImgH meet 0.55<TTL/(ImgH×2)<0.75.