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. 13, 2018
Filed:
Jun. 26, 2015
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Toru Kunimochi, Fukuroi, JP;
MINEBEA CO., LTD., Kitasaku-gun, JP;
Abstract
The illumination apparatus includes a light guide plate, a light source disposed opposing an incident light surface of the light guide plate, at least one optical sheet stacked on a light emitting surface of the light guide plate, and a frame for accommodating the light guide plate. On principal surfaces of the light guide plate, a protruding part and a recessed part are provided so as to form a pair at least along an end surface of the light guide plate extending in a direction that intersects an end surface serving as the incident light surface of the light guide plate, or along an end surface that opposes the incident light surface of the light guide plate.