发明名称 |
Illumination device with at least one LED as the light source |
摘要 |
White light emitting diode (LED) converting short wave radiation into longer wave radiation uses doped nitrides, oxynitrides and sialon phosphors. The phosphor comprises cation (M) and a silicon nitride or nitride derivative. The wavelength of peak emission is 430-670 nm. The cation is partially replaced by dopant (D) i.e. europium (Eu2+) or cerium (Ce3+). The cation is a bivalent metal e.g. barium (Ba), calcium (Ca), strontium (Sr) and/or a trivalent metal e.g. lutetium (Lu), lanthanum (La), gadolinium (Gd) or yttrium (Y). The phosphor originates from one of the following classes: nitride structure MSi3N5, M2Si4N7, M4Si6N11, M9Si11N23; Oxynitride structure M16Si15O6N32; sialons MSiAl2O3N2, M13Si18Al12O18N36, MSi5Al2ON9 and M3Si5AlON10. An Independent claim is included for pigments exhibiting daylight fluorescence, based on the foregoing substances. |
申请公布号 |
EP1296376(A2) |
申请公布日期 |
2003.03.26 |
申请号 |
EP20020015875 |
申请日期 |
2002.07.16 |
申请人 |
PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN MBH |
发明人 |
ELLENS, ANDRIES, DR.;FRIES, TORSTEN, DR.;FIEDLER, TIM;HUBER, GUENTER |
分类号 |
C09K11/59;H01L25/13;C09C1/00;C09C1/28;C09C3/06;C09K11/08;C09K11/64;C09K11/77;C09K11/79;C09K11/80;H01L33/50 |
主分类号 |
C09K11/59 |
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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