发明名称 |
LIGHT SOURCE COMPRISING A LIGHT-EMITTING ELEMENT |
摘要 |
The invention relates to a light source comprising a light-emitting element, which emits light in a first spectral region, and comprising a luminophore, which comes from the group of alkaline-earth orthosilicates and which absorbs a portion of the light emitted by the light source and emits light in another spectral region. According to the invention, the luminophore is an alkaline-earth orthosilicate, which is activated with bivalent europium and whose composition consists of: (2-x-y)SrO x(Ba, Ca)O (1-a-b-c-d)SiO2 aP2O5 bAl2O3 cB2O3 dGeO2: y Eu<2+> and/or (2-x-y)BaO x((Sr, Ca)O (1-a-b-c-d)SiO2 aP2O5 bAl2O3 cB2O3 dGeO2: y Eu<2+>. The desired color (color temperature) can be easily adjusted by using a luminophore of the aforementioned type. The light source can contain an additional luminophore selected from the group of alkaline-earth aluminates, activated with bivalent europium and/or manganese, and/or can contain an additional red-emitting luminophore selected from the group Y(V, P, Si)O4:Eu or can contain alkaline-earth magnesium disilicate. |
申请公布号 |
WO02054502(A1) |
申请公布日期 |
2002.07.11 |
申请号 |
WO2001AT00364 |
申请日期 |
2001.11.19 |
申请人 |
TRIDONIC OPTOELECTRONICS GMBH;LITEC GBR;LEUCHTSTOFFWERK BREITUNGEN GMBH;TASCH, STEFAN;PACHLER, PETER;ROTH, GUNDULA;TEWS, WALTER;KEMPFERT, WOLFGANG;STARICK, DETLEF |
发明人 |
TASCH, STEFAN;PACHLER, PETER;ROTH, GUNDULA;TEWS, WALTER;KEMPFERT, WOLFGANG;STARICK, DETLEF |
分类号 |
H01L33/50;C09K11/77;H01L33/06;H01L33/32;H05B33/20 |
主分类号 |
H01L33/50 |
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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