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:
Jul. 17, 2018
Filed:
May. 10, 2016
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0036 (2013.01); G02B 6/0031 (2013.01); G02B 6/0038 (2013.01);
Abstract
To easily increase display quality of light even in a case of a long light guide body. Depth hof a first dot () is larger than depth hof a second dot () in the vicinity of a light source, and, as a location comes closer to an end on an opposite side to the light source, depth hof the first dot () is reduced, and depth hof the second dot () is increased. Therefore, it is possible to easily increase display quality of light even in a case of a long light guide body.