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. 18, 2020
Filed:
Feb. 22, 2017
Zhejiang Sunny Optics Co., Ltd., Ningbo, CN;
Yuanlin Jia, Ningbo, CN;
Fujian Dai, Ningbo, CN;
ZHEJIANG SUNNY OPTICS CO., LTD., Ningbo, CN;
Abstract
A seven-lens wide-angle camera lens, having: a first lens with a negative refractive power; a second lens with a negative refractive power; a third lens with a refractive power; a fourth lens with a positive refractive power; a fifth lens with a refractive power; a sixth lens with a refractive power; and a seventh lens with a refractive power; and satisfies the following relational expressions: 0.06<CTΣTTL<0.15; and −0.7<f/f<−0.2; wherein, CTis a center thickness of the third lens that is on an optical axis; TTL is an axial distance from an object side surface to an imaging plane of the first lens; fis an effective focal length of the sixth lens; and fis an effective focal length of the seventh lens. By reasonably combining the 7 lenses, can obtain large field angles, which realizes miniaturization and favorable manufacturability while ensuring high resolution and imaging quality.