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Title:
LIGHT SOURCE DEVICE
Document Type and Number:
Japanese Patent JP2015103539
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a light source device capable of obtaining the mixed color light of a desired color tone.SOLUTION: A light source device 100 includes: a light source 10 for emitting a first light A; and a fluorescent member 20 for emitting a second light using the first light A as excitation light. One main surface of the fluorescent member 20 is irradiated with the first light A, and the mixed color light B of the first light A and the second light is emitted from one main surface of the fluorescent member 20. Then, on one main surface of the fluorescent member 20, a translucent layer 30 is provided whose refractive index is higher than that of the fluorescent member 20, and the interface between the fluorescent member 20 and the translucent layer 30 has a rough surface.

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Inventors:
SONOBE SHINYA
YAMASHITA TOSHIAKI
MURASAKI YOSHINORI
Application Number:
JP2013240598A
Publication Date:
June 04, 2015
Filing Date:
November 21, 2013
Export Citation:
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Assignee:
NICHIA KAGAKU KOGYO KK
International Classes:
H01L33/50
Domestic Patent References:
JP2013030720A2013-02-07
JP2013187043A2013-09-19
JP2007207615A2007-08-16
JP2008053702A2008-03-06
Foreign References:
WO2013127702A12013-09-06
US20130215597A12013-08-22



 
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