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. 07, 2017
Filed:
Feb. 25, 2016
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Assignee:
ROHM CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 23/00 (2015.01); F21S 8/02 (2006.01); H05B 33/08 (2006.01); F21V 23/02 (2006.01); F21Y 101/00 (2016.01);
U.S. Cl.
CPC ...
F21V 23/005 (2013.01); F21S 4/28 (2016.01); F21S 8/02 (2013.01); F21V 23/02 (2013.01); H05B 33/0803 (2013.01); H05B 33/0821 (2013.01); F21Y 2101/00 (2013.01); F21Y 2105/10 (2016.08); F21Y 2115/10 (2016.08); H01L 2224/48091 (2013.01); H01L 2224/48227 (2013.01); H01L 2924/181 (2013.01);
Abstract
A lighting device includes a substrate and a planar light source portion including a plurality of LED chips arrayed on the substrate. The planar light source portion faces an illumination space (space to be illuminated) by a predetermined opening area. The plurality of LED chips are arrayed on the substrate such that the mounting density with respect to the opening area is not less than 3/cm, and accordingly, a planar light source is formed.