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.

Date of Patent:
Feb. 26, 2019

Filed:

Dec. 22, 2017
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventor:

Hiroshi Teramoto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0093 (2013.01); G02B 6/0055 (2013.01); G02B 6/0088 (2013.01);
Abstract

A light source apparatus includes a light source, a light guide plate, a plurality of optical sheets, and an adhesive material. The light guide plate has an incident surface on which light from the light source is incident, and a light emitting surface from which the light on the incident surface is emitted. The plurality of optical sheets are disposed to overlap one another on the light emitting surface. The adhesive material fixes positions of the plurality of optical sheets. The plurality of optical sheets include respective extension portions each formed by bending an extension of a peripheral portion of the optical sheet to face a side surface of the light guide plate. The respective extension portions are aligned with displacements so as not to completely overlap one another, and the adhesive material is applied to the respective extension portions.


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