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:
Jun. 23, 2020
Filed:
Jun. 08, 2018
Calin Technology Co., Ltd., Taichung, TW;
Chien-Hsiung Tseng, Hsinchu, TW;
Shu-Chuan Hsu, Taichung, TW;
CALIN TECHNOLOGY CO., LTD., Taichung, TW;
Abstract
A wide-angle lens assembly includes, in order from an object side to an image side along an optical axis, a first lens with negative refractive power, a second lens with negative refractive power, a third lens with positive refractive power, a fourth lens with positive refractive power, a fifth lens with positive refractive power, a sixth lens with negative refractive power, and a seventh lens with positive refractive power; wherein, the wide-angle lens assembly satisfies the following condition: 0.2<f/f7<0.5; where f is a focal length of the wide-angle lens assembly and f7 is a focal length of the seventh lens. With the aforementioned design, the wide-angle lens assembly can have a large FOV and an improved imaging quality.