发明名称 |
Phosphors containing phosphate and/or borate of metals of group IIIA, group IVA, and lanthanide series, and light sources incorporating the same |
摘要 |
A phosphor comprises an oxide that comprises: (a) at least an element selected from the group consisting of phosphorus and boron; (b) at least a metal selected from the group consisting of elements of Group IIIA, elements of Group IVA, and elements of the lanthanide series; which oxide is co-activated with Ce<SUP>3+</SUP> and Tb<SUP>3+</SUP>. In one embodiment, a phosphor comprises lanthanum and gadolinium phosphate and/or borate co-activated with cerium and terbium. A phosphor of the present invention has low emission of UV radiation having wavelengths longer than about 250 nm, thus efficiently uses exciting UV having shorter wavelengths. The phosphor is used in light source that comprises a UV radiation source to convert efficiently UV radiation to visible light.
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申请公布号 |
US2005168125(A1) |
申请公布日期 |
2005.08.04 |
申请号 |
US20040768792 |
申请日期 |
2004.02.02 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
SRIVASTAVA ALOK M.;COMANZO HOLLY A.;BEERS WILLIAM W. |
分类号 |
C09K11/81;C09K11/08;C09K11/77;H01J1/62;H01J61/44;H01J61/72;H01J63/04;H01L33/00;(IPC1-7):H01L33/00 |
主分类号 |
C09K11/81 |
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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