发明名称 |
FLUORESCENT LIGHTING CREATING WHITE LIGHT |
摘要 |
<p>A light emitting system (1) comprising a radiation source (2) capable of emitting a first light of at least a first wavelength spectrum; a first fluorescent material (4) capable of absorbing at least partially the first light and emitting second light having a second wavelength spectrum; a second fluorescent material (8) capable of absorbing at least partially the first light and emitting a third light having a third wavelength spectrum; wherein one, the first (4) or the second fluorescent material (8) is a polycrystalline ceramic with a density of more than 97 percent of the density of a monocrystalline material and the respective other fluorescent material is a phosphor powder with a median particle size 100 nm<d50%<50 μm.</p> |
申请公布号 |
EP2013918(A2) |
申请公布日期 |
2009.01.14 |
申请号 |
EP20070735438 |
申请日期 |
2007.04.10 |
申请人 |
PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH;KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
SCHMIDT, PETER;BECHTEL, HANS-HELMUT;BUSSELT, WOLFGANG |
分类号 |
H01L33/50;C09K11/08;C09K11/77 |
主分类号 |
H01L33/50 |
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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