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:
Jun. 14, 2016

Filed:

May. 01, 2015
Applicant:

Sharp Kabushiki Kaisha, Osaka, JP;

Inventor:

Kenji Takase, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); F21V 29/70 (2015.01); F21V 29/503 (2015.01); F21K 99/00 (2016.01); F21V 23/00 (2015.01); F21Y 105/00 (2016.01);
U.S. Cl.
CPC ...
F21V 29/70 (2015.01); F21K 9/50 (2013.01); F21V 23/005 (2013.01); F21V 29/503 (2015.01); G02F 1/133603 (2013.01); G02F 1/133608 (2013.01); F21Y 2105/001 (2013.01); F21Y 2105/003 (2013.01); G02F 2001/133628 (2013.01);
Abstract

A light source device includes: a substrate having a front surface on which a light-emitting diode is mounted; and a case having a bottom plate that holds the substrate, wherein a driver circuit for driving the light-emitting diode is mounted on a rear surface of the substrate that is opposite to the front surface thereof, wherein an opening corresponding to a size of the light-emitting diode is formed in the bottom plate of the case, wherein the front surface of the substrate is fixed to a rear surface of the bottom plate of the case from outside of the case with the light-emitting diode fitted in the opening, and wherein a coating material with an emissivity of equal to or higher than 0.9 and equal to or lower than 1.0 is applied to an outer surface of four side walls of the case.


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