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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.:

US 8985779 B1

PDFFull Text
Date of Patent:
Mar. 24, 2015

Filed:

Feb. 23, 2010

Led light source box and projector including the same

Applicant:

Naoki Masuda, Tokyo, JP;

Inventor:

Naoki Masuda, Tokyo, JP;

Assignee:

NEC Display Solutions, Ltd., Tokyo, JP;

Attorney:

McGinn IP Law Group, PLLC

Primary Examiner:

William C Dowling

Assistant Examiner:

Ryan Howard

Int. Cl.
CPC ...
G03B 21/16 (2006.01); G03B 21/18 (2006.01); G03B 21/14 (2006.01); G03B 21/22 (2006.01); B60Q 1/06 (2006.01); F21V 29/00 (2006.01); F21V 15/01 (2006.01); F21V 31/00 (2006.01); G03B 21/20 (2006.01); F21V 19/00 (2006.01); F21S 2/00 (2006.01); F21Y 101/02 (2006.01); F21V 15/06 (2006.01);
U.S. Cl.
CPC ...
F21V 29/004 (2013.01); F21V 15/01 (2013.01); F21V 29/407 (2013.01); F21V 31/00 (2013.01); G03B 21/20 (2013.01); F21V 19/003 (2013.01); G03B 21/145 (2013.01); G03B 21/16 (2013.01); G03B 21/2033 (2013.01); F21S 2/005 (2013.01); F21Y 2101/02 (2013.01); F21V 15/06 (2013.01); F21V 19/0055 (2013.01);
Abstract

Provided is a LED light source box that includes: case () having body () and cover () to hermetically seal opening () of body (); light source unit () having LED tight source () and holder () on which LED light source () is mounted; and cooling unit () having first cooling member () in contact with holder () and second cooling member () in contact with first cooling member (). Holder () is fixed to cover () by fixing member () in a state where cooling unit () is sandwiched between holder () and cover (). Heat insulation member () is disposed between holder () and fixing member (), and air gap () is disposed between the outer peripheral surface of holder () and the inner peripheral surface of body ().

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