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. 30, 2015
Filed:
Sep. 17, 2013
Lg Innotek Co., Ltd., Seoul, KR;
Kyung Pil Chae, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
An exemplary embodiment of the present invention relates to an imaging lens, the imaging lens including, in an ordered way from an object side, a first lens having positive (+) refractive power, a second lens having negative (−) refractive power, a third lens having positive (+) refractive power, a fourth lens having negative (−) refractive power, wherein the imaging lens meets a conditional expression of D-D≦0, where Dis a distance from an apex of an object side surface of the third lens to an apex of an image side surface of the third lens, and Dis an axial distance from the apex of an object side surface of the third lens to an effective diameter of an object side surface of the fourth lens.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile