发明名称 |
LIGHT-EMITTING DEVICE |
摘要 |
[Problem] To provide a light-emitting device which does not undergo the deterioration in luminous efficiency associated with the long-term use. [Solution] A light-emitting device (1) comprises a light-emitting element (10) which can emit blue light and a phosphor (2) which is composed of a single kind of single crystal and can emit yellow light upon the irradiation with the light emitted from the light-emitting element (10) which serves as excitation light. Thus, it becomes possible to prevent the deterioration in luminous efficiency associated with the deterioration in a binder or the like compared with a light-emitting device which utilizes multiple kinds of granular phosphors, because any binder for binding phosphors to each other is not required in the light-emitting device (1). |
申请公布号 |
EP2634234(A1) |
申请公布日期 |
2013.09.04 |
申请号 |
EP20110836463 |
申请日期 |
2011.10.28 |
申请人 |
NATIONAL INSTITUTE FOR MATERIALS SCIENCE |
发明人 |
AOKI, KAZUO;WATANABE, MAKOTO;SHIMAMURA, KIYOSHI;GARCIA VILLORA, ENCARNACION ANTONIA |
分类号 |
C09K11/80;C09K11/77;H01L33/50;H05B33/14 |
主分类号 |
C09K11/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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