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:
Nov. 16, 2021
Filed:
Sep. 06, 2019
Applicant:
Minebea Mitsumi Inc., Nagano, JP;
Inventors:
Assignee:
MINEBEA MITSUMI INC., Nagano, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 13/04 (2006.01); F21V 5/04 (2006.01); F21V 7/05 (2006.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21V 13/04 (2013.01); F21V 5/04 (2013.01); F21V 7/05 (2013.01); G02F 1/133607 (2021.01); G02F 1/133608 (2013.01); F21Y 2115/10 (2016.08);
Abstract
A planar illumination device includes a light source substrate, a lens, a diffuser, and a spacer. The light source substrate includes a plurality of light-emitting devices two-dimensionally arrayed thereon. The lens receives light emitted from the light source substrate. The diffuser receives light emitted from the lens. The spacer is integrated with the diffuser and disposed between the lens and the diffuser.