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:
Jan. 03, 2017
Filed:
Jun. 27, 2014
Applicant:
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Inventor:
Toru Kunimochi, Fukuroi, JP;
Assignee:
MINEBEA CO., LTD., Kitasaku-Gun, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/10 (2006.01); F21V 8/00 (2006.01); G02B 6/28 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0046 (2013.01); G02B 6/002 (2013.01); G02B 6/0028 (2013.01); G02B 6/28 (2013.01);
Abstract
An illumination apparatus includes a light source, and a light guide plate having an emitting surface and a light incident portion including a curved surface, and decreasing in thickness from the light source side towards the emitting surface. The curved surface has an S-shape as viewed from a side, with a convex portion on the light source side and a concave portion on the emitting surface with an inflection point in between, but closer to the emitting surface than to the source side.