| 专利名称： | Illumination System Comprising a Ceramic Luminescence Converter |
| 公开（告）号： | |
| 公开（公告）日： | 2008-08-14 00:00:00 |
| 申请（专利）号： | US2008191608 |
| 申请日： | 2006-04-13 00:00:00 |
| 发明（设计）人： | KONINKL PHILIPS ELECTRONICS NV (NL) |
| (申请)专利权（人）： | SCHMIDT PETER J (DE) |
| 内容： | An illumination system, comprising a radiation source and a monolithic ceramic luminescence converter comprising at least one phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of wavelength different from that of the absorbed light; wherein said at least one phosphor is an alkaline earth metal sulfide of general formula AE1-zS1-ySey:Az, wherein AE is at least one earth alkaline metal selected from the group of Mg, Ca, Sr and Ba, 0<=y<1 and 0.0005<=z<=0.2, activated by an activator A selected from the group of Eu(II), Ce(III), Mn(II) and Pr(III). is highly efficient, especially if a blue light emitting diode is used as a radiation source, and provides excellent thermal and spectroscopic properties. The invention is also concerned with a monolithic ceramic luminescence converter comprising at least one phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of wavelength different from that of the absorbed light; wherein said at least one phosphor is an alkaline earth metal sulfide of general formula AE1-zS1-ySey:Az, wherein AE is as least one earth alkaline metal selected from the group of Mg, Ca, Sr and Ba, 0<=y<1 and 0.0005<=z<=0.2, activate by an activator A selected from the group of Eu(II), Ce(II), Mn(II) and Pr(III). |
发布日期：2008-11-27 11:17:00