申请日期 | 2025-06-25 | 申请号 | US12097741 |
公开(公告)号 | US20090134413A1 | 公开(公告)日 | 2009-05-28 |
公开国别 | US | 申请人省市代码 | 全国 |
申请人 | Gundula Roth; Walter Tews; Chung Hoon Lee | ||
简介 | The present invention relates to a light emitting device comprising at least one light emitting diode which emits light in a predetermined wavelength region, copper-alkaline earth metal based inorganic mixed crystals activated by rare earths, which include copper-alkaline earth silicate phosphors which are disposed around the light emitting diode and absorb a portion of the light emitted from the light emitting diode and to emit light different in wavelength from the absorbed light. |
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