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:
Mar. 28, 2017
Filed:
Dec. 14, 2012
Applicant:
Lg Innotek Co., Ltd., Seoul, KR;
Inventors:
Chang Hyuck Lee, Seoul, KR;
Eun Sung Seo, Seoul, KR;
Ki Cheol Kim, Seoul, KR;
Hyun Ho Choi, Seoul, KR;
Gi Seok Lee, Seoul, KR;
Assignee:
LG INNOTEK CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 19/00 (2006.01); F21K 9/90 (2016.01);
U.S. Cl.
CPC ...
G02F 1/133611 (2013.01); F21K 9/90 (2013.01); G02B 19/0028 (2013.01); G02B 19/0061 (2013.01); G02F 1/133603 (2013.01); G02B 19/0014 (2013.01); Y10T 29/49117 (2015.01);
Abstract
The exemplary embodiments of the present invention have a first refractive surface whose distance from a central axis gradually increasing as being distanced from a rear surface, and light from a light source can be effectively emitted from a first refractive surface to a lateral direction or an upper lateral direction.