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:
Oct. 03, 2023
Filed:
Mar. 11, 2021
Applicant:
Lg Innotek Co., Ltd., Seoul, KR;
Inventors:
Eay Jin Lim, Seoul, KR;
Seong Jin Kim, Seoul, KR;
Assignee:
LG INNOTEK CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0065 (2013.01); G02B 6/0073 (2013.01);
Abstract
A light source module comprises: a printed circuit board; a light source disposed on the printed circuit board; a first light guide layer disposed on the printed circuit board, and accommodating the light source; and a second light guide layer disposed above the first light guide layer, wherein a material of the first light guide layer is different from that of the second light guide layer, and a refractive index of the first light guide layer is greater than that of the second light guide layer.