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:
Apr. 10, 2018
Filed:
Jul. 11, 2016
AO Ether Optronics (Shenzhen) Limited, Shenzhen, Guandong Province, CN;
AO Ether Corporation, Taichung, TW;
Bo-Yan Chen, Taichung, TW;
Hsi-Ling Chang, Taichung, TW;
AO ETHER OPTRONICS (SHENZHEN) LIMITED, Shenzhen, Guangdong Province, CN;
AO ETHER CORPORATION, Taichung, TW;
Abstract
A wide-angle lens comprises sequentially from an object side to an image side along an optical axis a first lens, a second lens, a stop and a third lens. The first lens is a biconcave lens and with negative refractive power. The second lens is a convex-concave lens with positive refractive power and includes a convex surface facing the object side and concave surface facing the image side. The third lens is with positive refractive power and includes a convex surface facing the image side. The wide-angle lens satisfies the following condition: 2.9<DD<3.1 wherein Dis an effective diameter of the first lens and Dis an effective diameter of the second lens.