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1. (WO2016158089) FLUORESCENT LIGHT SOURCE DEVICE

Pub. No.:    WO/2016/158089    International Application No.:    PCT/JP2016/055163
Publication Date: Fri Oct 07 01:59:59 CEST 2016 International Filing Date: Wed Feb 24 00:59:59 CET 2016
IPC: F21V 29/502
F21V 7/00
F21V 7/22
F21V 29/505
F21V 29/89
F21Y 115/30
Applicants: USHIO DENKI KABUSHIKI KAISHA
ウシオ電機株式会社
Inventors: INOUE, Masaki
井上 正樹
KITAMURA, Seiji
北村 政治
Title: FLUORESCENT LIGHT SOURCE DEVICE
Abstract:
 The present invention addresses the problem of providing a highly reliable fluorescent light source device that does not exhibit reduced reflectance over a long period of time. This fluorescent light source device is provided with: a fluorescent plate that emits fluorescent light due to excitation light, with the surface of said plate serving as an excitation-light incident surface; a reflecting layer disposed on the reverse-surface side of the fluorescent plate; and a heat-radiating substrate. The fluorescent light source device is characterized in that a sealing layer covering the reverse and peripheral side surfaces of the reflecting layer is provided adhered to the peripheral edge of the reverse surface of the fluorescent plate with an adhesive layer interposed therebetween, and an anti-spreading layer formed from nickel plating is provided upon the heat-radiating substrate with a joining material layer interposed therebetween.