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US 2017/0324008 A1Published application
Wavelength converting material for a light emitting device
AssigneeLumileds Holding B.V.
InventorPeter Schmidt
Life of this patent
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Abstract
Embodiments of the invention include a wavelength-converting material defined by AE3−x1−y+zRE3−x2+y−z[Si9-wAlw(N1−yCy)[4](N16−z−wOz+w)[12]]Eux1,Cex2, where AE=Ca, Sr, Ba; RE=Y, Lu, La, Sc; 0≦x1≦0.18; 0≦x2≦0.2; x1+x2 >0; 0≦y≦1; 0≦z≦3; 0≦w≦3.
Claims20
A wavelength converting material comprising AE3−x1−y+zRE3−x2+y−z[Si9−wAlw(N1−yCy)[4](N16−z−wOz+w)[2]]Eux1, Cex2, where AE=Ca, Sr, Ba;
- RE=Y, Lu, La, Sc;
- 0≦x1≦0.18;
- 0≦x2≦0.2;
- x1+x2>0;
- 0≦y≦1;
- 0≦z≦3;
- 0≦w≦3.
4 more elements
A device comprising:
- a. a light emitting diode that emits blue light;
- and
- b. a wavelength converting material disposed in a path of the blue light, the wavelength converting material comprising AE3−x1−y+zRE3−x2+y−z[Si9−wAlw(N1−yCy)[4](N16−z−wOz+w)[2]]:Eux1,Cex2, where AE=Ca, Sr, Ba;
- RE=Y, Lu, La, Sc;
- 0≦x1≦0.18;
- 0≦X2≦0.2;
- x1+x2>0;
- 0≦y≦1;
- 0≦z≦3;
- 0≦w≦3.
7 more elements
Dependencies are inferred from the claim text.