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Title:
発光装置
Document Type and Number:
Japanese Patent JP4375270
Kind Code:
B2
Abstract:

To provide a light emitting device with rich color reproducing property with little variation in color tone, and also to provide the light emitting device of high performance and long service life obtaining high light emitting efficiency by preventing deterioration of members comprising the light emitting device.

The light emitting device is constituted of: an excitation light source which radiates excitation light; a light guide which is flexibly extended along a longitudinal direction for guiding the excitation light radiated from the excitation light source; and a wavelength converting member which absorbs and converts the wavelength of the excitation light radiated from the excitation light source through the light guide and releases light with a predetermined wavelength band. The light guide is provided with an end surface with a greater area than a cross sectional area orthogonally crossing in the longitudinal direction on the side on the radiated excitation light and is supported by a light guide tip member and the light guide and at least a part of the light guide tip member are covered by the wavelength converting member.

COPYRIGHT: (C)2006,JPO&NCIPI


Inventors:
Takashi Sugiyama
Yukihiro Hayashi
Application Number:
JP2005098064A
Publication Date:
December 02, 2009
Filing Date:
March 30, 2005
Export Citation:
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Assignee:
Nichia Corporation
International Classes:
F21V29/00; A61B1/06; F21S2/00; F21V9/08; G02B6/02; G02B23/26; H01L33/00; H01L33/50; H01L33/60; H01S5/022
Domestic Patent References:
JP2000357406A
JP2003515899A
Attorney, Agent or Firm:
Yukio Ono
Horikawa Kaori