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:
Nov. 23, 2004

Filed:

Jan. 14, 2003
Applicant:
Inventors:

Ryosuke Wakaki, Anan, JP;

Hiroshi Tominaga, Kariya, JP;

Kazumasa Kurokawa, Kariya, JP;

Assignee:

Nichia Corporation, Tokushima, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 1/128 ;
U.S. Cl.
CPC ...
G01D 1/128 ;
Abstract

A light emitting apparatus includes a light guiding member that projects light, incident on an end face thereof, through a principal plane; and a plurality of light emitting diodes that are optically coupled with the end face. The light guiding member has a protruding surface formed in part of the end face thereof and comprises a first light introducing portion that is formed on the protruding surface and is optically coupled to a first light emitting diode, and a second light introducing portion that is optically coupled to a second light emitting diode and is formed on the rest of the end face. The first and second light emitting diodes are capable of emitting color-blended light having two or more peaks in the spectrum.


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