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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 9267663 B1

PDFFull Text
Date of Patent:
Feb. 23, 2016

Filed:

Jun. 08, 2011

Illumination device

Applicant:

Shigeru Arai, Tokyo, JP;

Inventor:

Shigeru Arai, Tokyo, JP;

Assignee:

JAPAN APPLIED OPTICS CO., LTD., Tokyo, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Diane Lee

Assistant Examiner:

Naomi M Wolford

Int. Cl.
CPC ...
F21V 9/00 (2015.01); F21S 10/02 (2006.01); F21V 29/00 (2015.01); F21V 5/04 (2006.01); F21V 7/00 (2006.01); F21V 14/02 (2006.01); F21V 14/06 (2006.01); F21V 14/08 (2006.01); F21V 17/12 (2006.01); F21V 17/16 (2006.01); F21V 29/77 (2015.01); F21W 131/406 (2006.01); F21Y 101/02 (2006.01); F21Y 113/00 (2006.01); F21W 131/304 (2006.01); F21V 5/00 (2015.01); F21Y 105/00 (2006.01);
U.S. Cl.
CPC ...
F21V 9/00 (2013.01); F21S 10/02 (2013.01); F21V 5/04 (2013.01); F21V 7/0091 (2013.01); F21V 14/02 (2013.01); F21V 14/06 (2013.01); F21V 14/08 (2013.01); F21V 17/12 (2013.01); F21V 17/164 (2013.01); F21V 29/004 (2013.01); F21V 29/773 (2013.01); F21V 5/008 (2013.01); F21W 2131/304 (2013.01); F21W 2131/406 (2013.01); F21Y 2101/02 (2013.01); F21Y 2105/003 (2013.01); F21Y 2113/002 (2013.01); F21Y 2113/005 (2013.01);
Abstract

Light having little color inconsistency is effectively emitted with a simple structure achieving favorable productivity. A plurality of multi-color light emitting diodes comprising a plurality of LED chips having different light emission colors is disposed on the same surface such that the light emitted by the plurality of the multi-color light emitting diodes is mixed and emitted in a illumination device, wherein at least one multi-color light emitting diode from among the plurality of multi-color light emitting diodes is disposed while being rotated by a prescribed angle with reference to one other multi-color light emitting diode in such a manner that when translating the one multi-color light emitting diode so as to overlap with the one other multi-color light emitting diode, LED chips having the same light emission color do not overlap with each other.

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