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1. (WO2017017852) LUMINESCENT DEVICE

Pub. No.:    WO/2017/017852    International Application No.:    PCT/JP2015/071702
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Fri Jul 31 01:59:59 CEST 2015
IPC: H05B 33/02
H01L 51/50
Applicants: PIONEER CORPORATION
パイオニア株式会社
Inventors: KATO Nobuhiko
加藤 信彦
Title: LUMINESCENT DEVICE
Abstract:
In the present invention, a luminescent element (140) is disposed on a substrate (100). First asperities (212) and second asperities (232) are each disposed at the light extraction side of the luminescent element (140). The first asperities (212) are lined up in a first direction. The second asperities (232) are disposed at a location different from that of the first asperities (212) in the thickness direction of the substrate (100), and are lined up in a direction (a second direction) that intersects the first direction at a first angle. The luminescent spectrum of the luminescent element (140) has two or more peaks.