JP2007528606A - Ledに使用するための蛍光体及びそれらの混合物 - Google Patents
Ledに使用するための蛍光体及びそれらの混合物 Download PDFInfo
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Abstract
Description
米国政府は、NISTによって認められている契約No. 70NANB8H4022の条件によって規定される合理的な条件において、本発明における支払済みのライセンス及び特許権者がその他の者に認可する必要のある限定的な状況における権利を有する。
本発明は、蛍光体組成物に関し、特に電光用途に使用するための蛍光体に関する。さらに詳細には、本発明は、新規蛍光体及びこれらの蛍光体及びそれらの混合物を用いる電光装置に関する。
有色LEDに加え、LEDで生成された光及び蛍光体で生成された光の組み合わせが、白色光を生成するのに用いられ得る。最も一般的な白色LEDは、青色放射性GaInNチップからなる。青色放射性チップは、一部の青色放射線を補色、例えば黄緑色放射に転化する蛍光体で被覆されている。同時に、青色及び黄緑色放射線は、白色光を生成する。UV放射性チップ、及びUV放射線を可視光に転化するように設計された赤色、緑色及び青色放射性蛍光体を含む蛍光体混合物を用いる白色LEDもある。
第一の特徴では、本発明は、約250〜約500nmのピーク放射を有するUV又は青色半導体光源、及び式(Sr,Ba,Ca)2SiO4:Euを有する蛍光体を含む白色発光デバイスを提供する。
第二の特徴では、本発明は、約250〜約400nmのピーク放射を有するUV半導体光源、及び式(Ba,Sr,Ca)SiO4:Eu、及び一般式(Y,Gd,La,Lu,T,Pr,Sm)3(Al,Ga,In)5O12:Ceを有する1種以上のガーネット蛍光体及び式Mg4FGeO6:Mn4+(MFG)を有するマグネシウムフルオロゲルマネート蛍光体を含む蛍光体混合物を含む白色発光デバイスを提供する。
第三の特徴では、約370〜約500nmで放射する半導体光源、及び(Ba,Sr,Ca)SiO4:Eu、及び1種以上の(Sr,Mg,Ca,Ba,Zn)2P2O7:Eu,Mn(“SPP”);(Ca,Sr,Ba,Mg)5(PO4)3(Cl,F,OH):Eu,Mn(“HALO”);(Sr,Ba,Ca)MgAl10O17:Eu,Mn(“BAM,BAMn”);及びMg4FGeO6:Mn4+(MFG)を含む蛍光体混合物を含む白色発光デバイスが提供される。
第四の特徴では、(Sr,Ba,Ca)2SiO4:Eu及び(Sr,Mg,Ca,Ba,Zn)2P2O7:Eu,Mn(“SPP”);(Ca,Sr,Ba,Mg)5(PO4)3(Cl,F,OH):Eu,Mn(“HALO”);(Sr,Ba,Ca)MgAl10O17:Eu,Mn(“BAM,BAMn”);及びMg4FGeO6:Mn4+(MFG)の少なくとも1種;及び一般式(Y,Gd,La,Lu,T,Pr,Sm)3(Al,Ga,In)5O12:Ceを有する1種以上のガーネット蛍光体を含む蛍光体混合物が提供される。
蛍光体は、放射線(エネルギー)を可視光に転化する。蛍光体の異なる組み合わせは、異なる有色発光を提供する。蛍光体から生じる有色光は、色温度を提供する。新規蛍光体組成物は、LED及び他の光源におけるそれらの使用と同様にここで示される。
(Ba,Sr,Ca)5(PO4)3(Cl,F,Br,OH):Eu2+,Mn2+,Sb3+
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+
(Ba,Sr,Ca)BPO5:Eu2+,Mn2+
(Sr,Ca)10(PO4)6 *nB2O3:Eu2+
2SrO*0.84P2O5 *0.16B2O3:Eu2+
Sr2Si3O8*2SrCl2:Eu2+
Ba3MgSi2O8:Eu2+
Sr4Al14O25:Eu2+(SAE)
BaAl8O13:Eu2+
Sr4Al14O25:Eu2+
BaAl8O13:Eu2+
2SrO-0.84P2O5-0.16B203:Eu2+
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+
(Ba,Sr,Ca)5(PO4)3(Cl,F,OH):Eu2+,Mn2+,Sb3+
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+(BAMn)
(Ba,Sr,Ca)Al2O4:Eu2+
(Y,Gd,Lu,Sc,La)BO3:Ce3+,Tb3+
Ca8Mg(SiO4)4Cl2:Eu2+,Mn2+
(Ba,Sr,Ca)2(Mg,Zn)Si2O7:Eu2+
(Sr,Ca,Ba)(Al,Ga,In)2S4:Eu2+
(Y,Gd,Tb,La,Sm,Pr,Lu)3(Al,Ga)5O12:Ce3+
(Ca,Sr)8(Mg,Zn)(SiO4)4Cl2:Eu2+,Mn2+(CASI)
Na2Gd2B2O7:Ce3+,Tb3+
(Ba,Sr)2(Ca,Mg,Zn)B2O6:K,Ce,Tb
(Sr,Ca,Ba,Mg,Zn)2P2O7:Eu2+,Mn2+(SPP);
(Ca,Sr,Ba,Mg)10(PO4)6(F,Cl,Br,OH):Eu2+,Mn2+(HALO);
(Gd,Y,Lu,La)2O3:Eu3+,Bi3+
(Gd,Y,Lu,La)2O2S:Eu3+,Bi3+
(Gd,Y,Lu,La)VO4:Eu3+,Bi3+
(Ca,Sr)S:Eu2+
SrY2S4:Eu2+
CaLa2S4:Ce3+
(Ca,Sr)S:Eu2+
3.5MgO*0.5MgF2 *GeO2:Mn4+
(Ba,Sr,Ca)MgP2O7:Eu2+,Mn2+
(Y,Lu)2WO6:Eu3+,Mo6+
(Ba,Sr,Ca)xSiyNz:Eu2+
Claims (43)
- 以下を含む、白色光を放射するための電光装置。
約250nm〜約500nmの放射線を放射する半導体光源;及び
光源と放射状に結合されている蛍光体組成物であって、(Ba,Sr,Ca)SiO4:Euを含む蛍光体組成物。 - 光源がLEDである、請求項1記載の電光装置。
- LEDが、式IniGajAlkN(式中、0≦i;0≦j;0≦k及びi+j+k=1)で表される窒化物化合物半導体を含む、請求項2記載の電光装置。
- 光源が、有機体放射性構造である、請求項1記載の電光装置。
- 蛍光体組成物が、光源の表面に被覆されている、請求項1記載の電光装置。
- 光源及び蛍光体組成物の周囲にカプセル材料をさらに含む、請求項1記載の電光装置。
- 蛍光体組成物が、カプセル材料に分散されている、請求項1記載の電光装置。
- 反射用カップをさらに含む、請求項1記載の電光装置。
- 前記蛍光体組成物が、(Sr0.95Ba0.025Eu0.025)2SiO4を含む、請求項1記載の電光装置。
- 前記蛍光体組成物が、(Sr0.58Ca0.36Eu0.06)2SiO4を含む、請求項1記載の電光装置。
- 前記装置が、0.5286のccx値及び0.4604のccy値のカラーポイントを有する、請求項10記載の電光装置。
- 前記蛍光体組成物が、1種以上の追加の蛍光体をさらに含む、請求項1記載の電光装置。
- 前記1種以上の追加の蛍光体が、
(Ba,Sr,Ca)5(PO4)3(Cl,F,Br,OH):Eu2+,Mn2+,Sb3+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)BPO5:Eu2+,Mn2+;
(Sr,Ca)10(PO4)6 *nB2O3:Eu2+;
2SrO*0.84P2O5 *0.16B2O3:Eu2+;
Sr2Si3O8*2SrCl2:Eu2+;
Ba3MgSi2O8:Eu2+;
Sr4Al14O25:Eu2+;
BaAl8O13:Eu2+;
Sr4Al14O25:Eu2+;
BaAl8O13:Eu2+;
2SrO-0.84P2O5-0.16B203:Eu2+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)5(PO4)3(Cl,F,OH):Eu2+,Mn2+,Sb3+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)Al2O4:Eu2+;
(Y,Gd,Lu,Sc,La)BO3:Ce3+,Tb3+;
Ca8Mg(SiO4)4Cl2:Eu2+,Mn2+;
(Ba,Sr,Ca)2(Mg,Zn)Si2O7:Eu2+;
(Sr,Ca,Ba)(Al,Ga,In)2S4:Eu2+;
(Y,Gd,Tb,La,Sm,Pr,Lu)3(Al,Ga)5O12:Ce3+;
(Ca,Sr)8(Mg,Zn)(SiO4)4Cl2:Eu2+,Mn2+;
Na2Gd2B2O7:Ce3+,Tb3+;
(Ba,Sr)2(Ca,Mg,Zn)B2O6:K,Ce,Tb;
(Sr,Ca,Ba,Mg,Zn)2P2O7:Eu2+,Mn2+;
(Ca,Sr,Ba,Mg)10(PO4)6(F,Cl,Br,OH):Eu2+,Mn2+;
(Gd,Y,Lu,La)2O3:Eu3+,Bi3+;
(Gd,Y,Lu,La)2O2S:Eu3+,Bi3+;
(Gd,Y,Lu,La)VO4:Eu3+,Bi3+;
(Ca,Sr)S:Eu2+;
SrY2S4:Eu2+;
CaLa2S4:Ce3+;
(Ca,Sr)S:Eu2+;
3.5MgO*0.5MgF2 *GeO2:Mn4+;
(Ba,Sr,Ca)MgP2O7:Eu2+,Mn2+;
(Y,Lu)2WO6:Eu3+,Mo6+;
(Ba,Sr,Ca)xSiyNz:Eu2+;
からなる群から選択される、請求項12記載の電光装置。 - 以下を含む、白色光を放射するための電光装置。
約250nm〜約400nmの放射線を放射するUV光源;及び
光源と放射状に結合されている蛍光体組成物であって、(Ba,Sr,Ca)SiO4:Eu、一般式(Y,Gd,La,Lu,T,Pr,Sm)3(Al,Ga,In)5O12:Ceを有する1種以上のガーネット蛍光体及び式Mg4FGeO6:Mn4+を有するマグネシウムフルオロゲルマネート蛍光体を含む蛍光体組成物。 - 光源が半導体LEDである、請求項14記載の電光装置。
- LEDが、式IniGajAlkN(式中、0≦i;0≦j;0≦k及びi+j+k=1)で表される窒化物化合物半導体を含む、請求項14記載の電光装置。
- 前記光源が、有機体放射性構造である、請求項14記載の電光装置。
- 蛍光体組成物が、光源の表面に被覆されている、請求項14記載の電光装置。
- 光源及び蛍光体組成物の周囲にカプセル材料をさらに含む、請求項14記載の電光装置。
- 蛍光体組成物が、カプセル材料に分散されている、請求項14記載の電光装置。
- 反射用カップをさらに含む、請求項14記載の電光装置。
- 前記(Ba,Sr,Ca)SiO4:Eu蛍光体が、(Sr0.95Ba0.025Eu0.025)2SiO4を含む、請求項14記載の電光装置。
- 前記蛍光体組成物が、(Sr0.58Ca0.36Eu0.06)2SiO4を含む、請求項14記載の電光装置。
- 前記装置が、0.5286のccx値及び0.4604のccy値のカラーポイントを有する、請求項23記載の電光装置。
- 前記蛍光体組成物が、1種以上の追加の蛍光体をさらに含む、請求項14記載の電光装置。
- 前記1種以上の追加の蛍光体が、
(Ba,Sr,Ca)5(PO4)3(Cl,F,Br,OH):Eu2+,Mn2+,Sb3+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)BPO5:Eu2+,Mn2+;
(Sr,Ca)10(PO4)6 *nB2O3:Eu2+;
2SrO*0.84P2O5 *0.16B2O3:Eu2+;
Sr2Si3O8*2SrCl2:Eu2+;
Ba3MgSi2O8:Eu2+;
Sr4Al14O25:Eu2+;
BaAl8O13:Eu2+;
Sr4Al14O25:Eu2+;
BaAl8O13:Eu2+;
2SrO-0.84P2O5-0.16B203:Eu2+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)5(PO4)3(Cl,F,OH):Eu2+,Mn2+,Sb3+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)Al2O4:Eu2+;
(Y,Gd,Lu,Sc,La)BO3:Ce3+,Tb3+;
Ca8Mg(SiO4)4Cl2:Eu2+,Mn2+;
(Ba,Sr,Ca)2(Mg,Zn)Si2O7:Eu2+;
(Sr,Ca,Ba)(Al,Ga,In)2S4:Eu2+;
(Y,Gd,Tb,La,Sm,Pr,Lu)3(Al,Ga)5O12:Ce3+;
(Ca,Sr)8(Mg,Zn)(SiO4)4Cl2:Eu2+,Mn2+;
Na2Gd2B2O7:Ce3+,Tb3+;
(Ba,Sr)2(Ca,Mg,Zn)B2O6:K,Ce,Tb;
(Sr,Ca,Ba,Mg,Zn)2P2O7:Eu2+,Mn2+;
(Ca,Sr,Ba,Mg)10(PO4)6(F,Cl,Br,OH):Eu2+,Mn2+;
(Gd,Y,Lu,La)2O3:Eu3+,Bi3+;
(Gd,Y,Lu,La)2O2S:Eu3+,Bi3+;
(Gd,Y,Lu,La)VO4:Eu3+,Bi3+;
(Ca,Sr)S:Eu2+;
SrY2S4:Eu2+;
CaLa2S4:Ce3+;
(Ca,Sr)S:Eu2+;
3.5MgO*0.5MgF2 *GeO2:Mn4+;
(Ba,Sr,Ca)MgP2O7:Eu2+,Mn2+;
(Y,Lu)2WO6:Eu3+,Mo6+;
(Ba,Sr,Ca)xSiyNz:Eu2+;
からなる群から選択される、請求項25記載の電光装置。 - 以下を含む、白色光を放射するための電光装置。
約370〜約500nmの放射線を放射する半導体光源;及び
光源と放射状に結合している蛍光体組成物であって、(Ba,Sr,Ca)SiO4:Eu、及び1種以上の(Sr,Mg,Ca,Ba,Zn)2P2O7:Eu,Mn;(Ca,Sr,Ba,Mg)5(PO4)3(Cl,F,OH):Eu,Mn;(Sr,Ba,Ca)MgAl10O17:Eu,Mn;及びMg4FGeO6:Mn4+を含む蛍光体組成物。 - 光源が半導体LEDである、請求項27記載の電光装置。
- LEDが、式IniGajAlkN(式中、0≦i;0≦j;0≦k及びi+j+k=1)で表される窒化物化合物半導体を含む、請求項27記載の電光装置。
- 前記光源が、有機体放射性構造である、請求項27記載の電光装置。
- 蛍光体組成物が、光源の表面に被覆されている、請求項27記載の電光装置。
- 光源及び蛍光体組成物の周囲にカプセル材料をさらに含む、請求項27記載の電光装置。
- 蛍光体組成物が、カプセル材料に分散されている、請求項27記載の電光装置。
- 反射用カップをさらに含む、請求項27記載の電光装置。
- 前記(Ba,Sr,Ca)SiO4:Eu蛍光体が、(Sr0.95Ba0.025Eu0.025)2SiO4を含む、請求項27記載の電光装置。
- 前記蛍光体組成物が、(Sr0.58Ca0.36Eu0.06)2SiO4を含む、請求項27記載の電光装置。
- 前記装置が、0.5286のccx値及び0.4604のccy値のカラーポイントを有する、請求項36記載の電光装置。
- 前記蛍光体組成物が、1種以上の追加の蛍光体をさらに含む、請求項27記載の電光装置。
- 前記1種以上の追加の蛍光体が、
(Ba,Sr,Ca)5(PO4)3(Cl,F,Br,OH):Eu2+,Mn2+,Sb3+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)BPO5:Eu2+,Mn2+;
(Sr,Ca)10(PO4)6 *nB2O3:Eu2+;
2SrO*0.84P2O5 *0.16B2O3:Eu2+;
Sr2Si3O8*2SrCl2:Eu2+;
Ba3MgSi2O8:Eu2+;
Sr4Al14O25:Eu2+;
BaAl8O13:Eu2+;
Sr4Al14O25:Eu2+;
BaAl8O13:Eu2+;
2SrO-0.84P2O5-0.16B203:Eu2+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)5(PO4)3(Cl,F,OH):Eu2+,Mn2+,Sb3+;
(Ba,Sr,Ca)MgAl10O17:Eu2+,Mn2+;
(Ba,Sr,Ca)Al2O4:Eu2+;
(Y,Gd,Lu,Sc,La)BO3:Ce3+,Tb3+;
Ca8Mg(SiO4)4Cl2:Eu2+,Mn2+;
(Ba,Sr,Ca)2(Mg,Zn)Si2O7:Eu2+;
(Sr,Ca,Ba)(Al,Ga,In)2S4:Eu2+;
(Y,Gd,Tb,La,Sm,Pr,Lu)3(Al,Ga)5O12:Ce3+;
(Ca,Sr)8(Mg,Zn)(SiO4)4Cl2:Eu2+,Mn2+;
Na2Gd2B2O7:Ce3+,Tb3+;
(Ba,Sr)2(Ca,Mg,Zn)B2O6:K,Ce,Tb;
(Sr,Ca,Ba,Mg,Zn)2P2O7:Eu2+,Mn2+;
(Ca,Sr,Ba,Mg)10(PO4)6(F,Cl,Br,OH):Eu2+,Mn2+;
(Gd,Y,Lu,La)2O3:Eu3+,Bi3+;
(Gd,Y,Lu,La)2O2S:Eu3+,Bi3+;
(Gd,Y,Lu,La)VO4:Eu3+,Bi3+;
(Ca,Sr)S:Eu2+;
SrY2S4:Eu2+;
CaLa2S4:Ce3+;
(Ca,Sr)S:Eu2+;
3.5MgO*0.5MgF2 *GeO2:Mn4+;
(Ba,Sr,Ca)MgP2O7:Eu2+,Mn2+;
(Y,Lu)2WO6:Eu3+,Mo6+;
(Ba,Sr,Ca)xSiyNz:Eu2+;
からなる群から選択される、請求項38記載の電光装置。 - (Sr,Ba,Ca)2SiO4:Eu及び(Sr,Mg,Ca,Ba,Zn)2P2O7:Eu,Mn;(Ca,Sr,Ba,Mg)5(PO4)3(Cl,F,OH):Eu,Mn;(Sr,Ba,Ca)MgAl10O17:Eu,Mn;及びMg4FGeO6:Mn4+の少なくとも1種;及び一般式(Y,Gd,La,Lu,T,Pr,Sm)3(Al,Ga,In)5O12:Ceを有する1種以上のガーネット蛍光体を含む、蛍光体混合物。
- (Sr0.95Ba0.025Eu0.025)2SiO4を含む、請求項40記載の蛍光体混合物。
- (Sr0.58Ca0.36Eu0.06)2SiO4を含む、請求項40記載の蛍光体混合物。
- 前記蛍光体混合物が、350〜500nmで放射する光源によって放射される放射線を吸収し、及び、前記光源からの前記放射線と組み合わされるとき、白色光を生成する放射線を放射することができる、請求項40記載の蛍光体混合物。
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US10/797,784 US7573072B2 (en) | 2004-03-10 | 2004-03-10 | Phosphor and blends thereof for use in LEDs |
PCT/US2005/005546 WO2005091862A2 (en) | 2004-03-10 | 2005-02-22 | Phosphor and blends thereof for use in leds |
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EP (1) | EP1735816B1 (ja) |
JP (1) | JP5143549B2 (ja) |
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US7573072B2 (en) | 2009-08-11 |
EP1735816A4 (en) | 2009-11-04 |
CN1938870A (zh) | 2007-03-28 |
US20050199897A1 (en) | 2005-09-15 |
CN100530708C (zh) | 2009-08-19 |
WO2005091862A3 (en) | 2006-04-27 |
EP1735816A2 (en) | 2006-12-27 |
WO2005091862A2 (en) | 2005-10-06 |
EP1735816B1 (en) | 2011-11-30 |
ATE535591T1 (de) | 2011-12-15 |
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