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. 04, 2013
Filed:
Apr. 24, 2012
Wei Yin, Guangdong, CN;
Yang-cheng Luo, Guangdong, CN;
Zi-yuan LI, Guangdong, CN;
Premier Image Technology (China) Ltd., Foshan, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A wide-conversion lens, in order from the object-side to the image-side, includes a first lens with negative refraction power, a second lens with negative refraction power, a third lens with positive refraction power, a fourth lens with positive refraction power, and a fifth lens with negative refraction power. The first lens includes a surface facing the object side. The wide-conversion lens satisfies the following conditions: R1<0; V−V≧19; V−V≧35. Wherein, R1 is the curvature radius of the surface of the first lens; Vis the Abbe number of the first lens; Vis the Abbe number of the second lens; Vis the Abbe number of the third lens.