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1. (WO2018163830) LIGHT SOURCE DEVICE

Pub. No.:    WO/2018/163830    International Application No.:    PCT/JP2018/006343
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Fri Feb 23 00:59:59 CET 2018
IPC: H01L 33/50
C09K 11/08
C09K 11/59
C09K 11/64
C09K 11/78
C09K 11/79
C09K 11/80
F21V 9/00
F21Y 115/30
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: UEDA Yuki
上田 裕喜
HOGIRI Masayuki
鳳桐 将之
NAGASAKI Yoshihisa
長崎 純久
OKUYAMA Kojiro
奥山 浩二郎
NITTA Mitsuru
新田 充
Title: LIGHT SOURCE DEVICE
Abstract:
This light source device is provided with: an excitation light source; and a fluorescence layer that emits fluorescence upon receiving excitation light from the excitation light source. The fluorescence layer comprises at least one selected from the group consisting of a first fluorescence substance by which a peak wavelength of fluorescence emitted by the excitation light is 400-510 nm, and a second fluorescence substance by which a peak wavelength of fluorescence emitted by the excitation light is 580-700 nm. A fluorescence lifetime of each of the first fluorescence substance and the second fluorescence substance is 0.1-250 ns. The energy density of the excitation light is 10 W/mm2 or more.