| 发明名称 |
LUMINESCENT ALUMINATE |
| 摘要 |
The invention relates to a luminescent aluminate which is activated by bivalent europium and which has a hexagonal crystal structure corresponding to that of phase 1 beta -alumina. According to the invention, the aluminate comprises nitrogen and complies with the formula Ba1-yEuyAl11+p(1-x)O17.5+1.5p(1-x)-1.5xNx, in which 0.01</=y</=0.40, 1.8</=p</=3.6, 0<x</=1. It was found to be possible by means of these aluminates to manufacture low-pressure mercury discharge lamps operating by the three-band principle which have a high color rendering index.
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| 申请公布号 |
WO9745504(A1) |
申请公布日期 |
1997.12.04 |
| 申请号 |
WO1997IB00576 |
申请日期 |
1997.05.22 |
| 申请人 |
PHILIPS ELECTRONICS N.V.;PHILIPS NORDEN AB |
发明人 |
HINTZEN, HUBERTUS, THERESIA;JANSEN, STEPHAN, REMCO;MIGCHELS, JUDITH, MARIA |
| 分类号 |
C09K11/77;C09K11/80;H01J61/44;(IPC1-7):C09K11/80 |
主分类号 |
C09K11/77 |
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