发明名称 |
Illumination device, particularly with luminescent ceramics |
摘要 |
An illumination device includes an active layer, such as a blue LED, covered with a first luminescent ceramic converter layer and partially covered with a second luminescent ceramic converter layer. The first and second conversion layers convert primary photons emitted by the active layer into photons of different, longer wavelengths. The color point of the illumination device can be adjusted by adjusting the relative size of the second conversion layer. |
申请公布号 |
US8247828(B2) |
申请公布日期 |
2012.08.21 |
申请号 |
US20070517284 |
申请日期 |
2007.11.30 |
申请人 |
BECHTEL HANS-HELMUT;BUSSELT WOLFGANG;SCHMIDT PETER J.;MEYER JOERG;KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
BECHTEL HANS-HELMUT;BUSSELT WOLFGANG;SCHMIDT PETER J.;MEYER JOERG |
分类号 |
H01L33/00;F21V5/00;F21V13/00;H01L29/20;H01L33/50 |
主分类号 |
H01L33/00 |
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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