发明名称 |
LED illumination device with layered phosphor pattern |
摘要 |
A method of applying at least two phosphors to an LED, wherein a first phosphor material having a lower absorption, shorter luminescence decay time, and/or lower thermal quenching than a second phosphor material is positioned closer to the LED than the second phosphor. Such an arrangement provides a light emitting device with improved lumen output and color stability over a range of drive currents.
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申请公布号 |
US7327078(B2) |
申请公布日期 |
2008.02.05 |
申请号 |
US20040813338 |
申请日期 |
2004.03.30 |
申请人 |
LUMINATION LLC |
发明人 |
SETLUR ANANT ACHYUT;SHIANG JOSEPH JOHN;SRIVASTAVA ALOK MANI;COMANZO HOLLY ANN;WEAVER STANTON EARL;BECKER CHARLES ADRIAN |
分类号 |
H05B33/00;C09K11/66;C09K11/77;H01J1/62;H01J63/04;H01L21/00;H01L33/50 |
主分类号 |
H05B33/00 |
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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