发明名称 |
Phosphor converted light emitting device |
摘要 |
A phosphor converted light emitting device includes a semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region, the light emitting layer being configured to emit light having a first peak wavelength; a first phosphor configured to emit light having a second peak wavelength; and a second phosphor configured to emit light having a third peak wavelength. The second phosphor is an Eu<SUP>3+</SUP>-activated phosphor, configured such that in the excitation spectrum at 298K and 1.013 bar, a maximum intensity in a wavelength range between 460 nm and 470 nm is at least 5% of a maximum intensity in a wavelength range between 220 nm to 320 nm.
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申请公布号 |
US7446343(B2) |
申请公布日期 |
2008.11.04 |
申请号 |
US20070623068 |
申请日期 |
2007.01.13 |
申请人 |
PHILIPS LUMILEDS LIGHTING COMPANY, LLC;KONINKLIJKE PHILIPS ELECTRONICS N.V. ET AL. |
发明人 |
MUELLER GERD O.;MUELLER-MACH REGINA B;JUESTEL THOMAS;HUPPERTZ PETRA;WIECHERT DETLEF UWE;UHLICH DOMINIK |
分类号 |
H01L29/20 |
主分类号 |
H01L29/20 |
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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