发明申请
US20050168125A1 Phosphors containing phosphate and/or borate of metals of group IIIA, group IVA, and lanthanide series, and light sources incorporating the same
有权
含有IIIA族，IVA族和镧系元素的金属的磷酸盐和/或硼酸盐的荧光体，以及含有它们的光源
- 专利标题： Phosphors containing phosphate and/or borate of metals of group IIIA, group IVA, and lanthanide series, and light sources incorporating the same
- 专利标题（中）： 含有IIIA族，IVA族和镧系元素的金属的磷酸盐和/或硼酸盐的荧光体，以及含有它们的光源
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申请号： US10768792申请日： 2004-02-02
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公开(公告)号： US20050168125A1公开(公告)日： 2005-08-04
- 发明人: Alok Srivastava , Holly Comanzo , William Beers
- 申请人： Alok Srivastava , Holly Comanzo , William Beers
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 主分类号： C09K11/81
- IPC分类号： C09K11/81 ; C09K11/08 ; C09K11/77 ; H01J1/62 ; H01J61/44 ; H01J61/72 ; H01J63/04 ; H01L33/00
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 Ce3+ and Tb3+. 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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