| 发明名称 |
Beryllium-containing europium activated phosphate phosphor, luminescent screen and discharge lamp containing same |
| 摘要 |
A luminescent beryllium-containing phosphate activated by bivalent europium defined by the formula Mea-xBebEuxP2O8 where a + b = 3 and 0.01</=x</=0.25 and b has the value 1 or 2. If b = 2, Me mainly represents one of the alkaline earth metals barium, strontium and calcium. If b = 1, Me mainly represents barium and/or strontium.
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| 申请公布号 |
US4049992(A) |
申请公布日期 |
1977.09.20 |
| 申请号 |
US19740472282 |
申请日期 |
1974.05.22 |
| 申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
VERSTEGEN, JUDICUS MARINUS PIETER JAN;VAN DE SPIJKER, WILLEBRORDUS HUBERTUS MARTINUS MARIA;DE MEESTER, EMIEL PETRUS JULIAAN |
| 分类号 |
C09K11/08;C09K11/77;H01J29/20;(IPC1-7):C09K11/46;H01J1/63 |
主分类号 |
C09K11/08 |
| 代理机构 |
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