发明名称 |
Warm white fluorescent lamp having good efficacy and color rendering |
摘要 |
Fluorescent lamp has warm-white color and both high efficacy and good color rendition. This performance is achieved by utilizing a broad-band-emitting apatite-structured calcium fluorophosphate activated by predetermined percentages of antimony and manganese and narrow red-orange-emitting yttrium oxide activated by a predetermined percentage of tervalent europium.
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申请公布号 |
US4263530(A) |
申请公布日期 |
1981.04.21 |
申请号 |
US19790058574 |
申请日期 |
1979.07.17 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
VAN BROEKHOVEN, JACOB;CORTH, RICHARD |
分类号 |
C09K11/08;H01J61/44;(IPC1-7):H01J61/44 |
主分类号 |
C09K11/08 |
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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