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 8876318 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 04, 2014

Filed:

Jan. 13, 2011
Applicant:

Tatsuro Kuroda, Osaka, JP;

Inventor:

Tatsuro Kuroda, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09F 13/04 (2006.01); G02F 1/1335 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133606 (2013.01); G02F 2001/133322 (2013.01);
Abstract

An illumination device is provided that can reduce the displacement of the position of a diffusion plate. This illumination device includes the diffusion plate and a fixing pin that fixes the diffusion plate. When seen in plan view from the side of the light emitting surface of the diffusion plate, a diffusion plate fixing portion is provided in a perimeter portion on the side of the light emitting surface of the diffusion plate, and the fixing pin is engaged with the diffusion plate fixing portion.


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