发明名称 |
FLUORESCENT LAMP WITH IMPROVED PHOSPHOR BLEND |
摘要 |
A fluorescent lamp comprises at least one layer of a quad-phosphor blend for emitting visible illumination having a white color. The quad-phosphor blend comprising a first and second green emitting phosphor component with each green emitting phosphor component having different visible emission spectrum principally in the 520 to 560 nm wavelength range. A third blue emitting phosphor component has an emission spectrum principally in the 440 to 470 nm wavelength range. A fourth red emitting phosphor component has an emission spectrum principally in the 590 to 620 nm wavelength range. The first green emitting phosphor component is a alkaline earth metal activated phosphor and the second green emitting phosphor is a rare earth activated phosphor wherein the relative proportions of the phosphor components are such that an enhanced color rendering index is produced as compared to tri-component blends formed from three of the phosphor components.
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申请公布号 |
CA2105021(A1) |
申请公布日期 |
1994.03.01 |
申请号 |
CA19932105021 |
申请日期 |
1993.08.27 |
申请人 |
GTE PRODUCTS CORPORATION |
发明人 |
HUNT, ROGER B., JR.;HOPE, LAWRENCE L.;ROCHE, WILLIAM J. |
分类号 |
C09K11/02;H01J61/44;H01J61/46;(IPC1-7):H01J61/44 |
主分类号 |
C09K11/02 |
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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