发明名称 |
Yellow fluorescent substance, light-emitting device, illumination device, and vehicle |
摘要 |
The present invention provides an oxynitride silicate fluorescent substance capable of output a light having a high luminance even when irradiated by an exciting light having a high energy density. The present invention is a yellow fluorescent substance represented by a chemical formula (Ba1-x-y-z,Srx)aSibOcNd:Eu2+y,Y3+z (0.9≦a≦1.1, 1.9≦b≦2.1, 1.9≦c≦2.1, 1.9≦d≦2.1, 0≦x≦1, 0<y<0.01, and 0≦z<0.01). |
申请公布号 |
US9416313(B2) |
申请公布日期 |
2016.08.16 |
申请号 |
US201414460372 |
申请日期 |
2014.08.15 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. |
发明人 |
Nitta Mitsuru;Shiraishi Seigo;Inoue Osamu;Okuyama Kojiro;Nagasaki Yoshihisa;Ohbayashi Takashi |
分类号 |
F21V11/00;C09K11/77;F21S8/10 |
主分类号 |
F21V11/00 |
代理机构 |
McDermott Will & Emery LLP |
代理人 |
McDermott Will & Emery LLP |
主权项 |
1. A yellow fluorescent substance represented by a chemical formula (Ba1-x-y-z,Srx)aSibOcNd:Eu2+y,Y3+z, wherein
all of the following seven mathematical formulae (I)-(VII) are satisfied:
0.9≦a≦1.1 (I)1.9≦b≦2.1 (II)1.9≦c≦2.1 (III)1.9≦d≦2.1 (IV)0≦x≦1 (V)0<y<0.01 (VI)0≦z<0.01 (VII). |
地址 |
Osaka JP |