发明名称 |
Fluorescent lamp with single phosphor layer |
摘要 |
A fluorescent lamp (10) includes a coating (16) comprising a blue-green emitting halophosphate in combination with rare-earth phosphors, such as a red-emitting rare earth phosphor and a green-emitting rare earth phosphor. The blue-green emitting halophosphate replaces some or all of the blue-emitting rare earth phosphor conventionally used in lamps designed to have a high color rendition index (CRI). This combination of phosphors is preferably blended with a white-emitting halophosphate in a ratio of about 1:3, providing a blend which is suitable for providing a single coating layer for the lamp. The single layer coated lamp has a CRI which is comparable to that of a lamp formed with a conventional two phosphor layer coating process, without appreciably increasing the content of rare earth phosphors used. <IMAGE>
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申请公布号 |
EP1339093(A2) |
申请公布日期 |
2003.08.27 |
申请号 |
EP20030251049 |
申请日期 |
2003.02.21 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
SOULES, THOMAS F.;JANSMA, JON B. |
分类号 |
C09K11/08;C09K11/73;C09K11/76;C09K11/78;C09K11/80;H01J61/44;(IPC1-7):H01J61/44;C09K11/81;C09K11/72 |
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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