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:
Sep. 28, 2021
Filed:
Apr. 17, 2019
Applicant:
Minebea Mitsumi Inc., Nagano, JP;
Inventor:
Suguru Mukumoto, Fukuroi, JP;
Assignee:
MINEBEA MITSUMI INC., Nagano, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01); G02F 1/1335 (2006.01); F21V 5/00 (2018.01);
U.S. Cl.
CPC ...
G02F 1/133606 (2013.01); G02F 1/133603 (2013.01); G02F 1/133605 (2013.01); G02F 1/133608 (2013.01); F21V 5/005 (2013.01); G02F 1/133607 (2021.01);
Abstract
A planar lighting device according to an embodiment includes a substrate and a lens. A plurality of light sources are arranged on the substrate. The lens is formed to have, on an incident surface opposing the plurality of light sources, an optical element having a plurality of first optical parts that include a part that tapers from a bottom face having a hexagonal shape toward a tip, the first optical parts being arranged in a staggered arrangement.