发明名称 |
Method and apparatus for performing wavelength-conversion using phosphors with light emitting diodes |
摘要 |
An apparatus comprises an active region, a phosphor layer and a substrate. The active region is configured to emit light having a first band of wavelengths selected from a first group of wavelengths. The phosphor layer has a first refractive index. The phosphor layer includes a plurality of wavelength-converting phosphors. The phosphor layer is configured to convert the first band of wavelengths of light emitted from the active region to a second band of wavelengths. A center wavelength of the second band of wavelengths is greater than a center wavelength of the first band of wavelengths. The substrate is disposed between and in contact with the active region and the phosphor layer. The substrate has a second refractive index. The first refractive index substantially equals the second refractive index.
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申请公布号 |
US6404125(B1) |
申请公布日期 |
2002.06.11 |
申请号 |
US19990421584 |
申请日期 |
1999.10.20 |
申请人 |
SARNOFF CORPORATION;EMCORE CORPORATION |
发明人 |
GARBUZOV DMITRI ZALMANOVICH;CONNOLLY JOHN CHARLES;KARLICEK, JR. ROBERT FRANK;FERGUSON IAN THOMAS |
分类号 |
H01L27/15;H01L33/10;H01L33/20;H01L33/46;H01L33/50;(IPC1-7):H05B33/02 |
主分类号 |
H01L27/15 |
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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