Light emitting device
First Claim
1. A light emitting device, comprising:
- a light emitting diode configured to emit light; and
a phosphor configured to change a wavelength of the light, the phosphor substantially covering at least a portion of the light emitting diode;
wherein said phosphor comprises a compound including a host material, wherein divalent copper ions and oxygen are components of the host material,wherein the compound has the formula
a(M′
O).b(M″
2O).c(M″
X).d(Al2O3).e(M′
″
O).f(M″
″
2O3).g(M′
″
″
oOp).h(M″
″
″
xOy)whereinM′
is Cu, or a combination of Cu and Pb;
M″
is Li, Na, K, Rb, Cs, Au, Ag or any combination thereof;
M′
″
is Be, Mg, Ca, Sr, Ba, Zn, Cd, Mn or any combination thereof;
M″
″
is Sc, B, Ga, In, or any combination thereof;
M′
″
″
is Si, Ge, Ti, Zr, Mn, V, Nb, Ta, W, Mo, or any combination thereof;
M″
″
″
is Bi, Sn, Sb, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or any combination thereof;
X is F, Cl, Br, I, or any combination thereof;
0<
a≦
2;
0≦
b≦
2;
0≦
c≦
2;
0<
d≦
8;
0<
e≦
4;
0≦
f≦
3;
0≦
g≦
8;
0<
h≦
2;
1≦
o≦
2;
1≦
p≦
5;
1≦
x≦
2; and
1≦
y≦
5.
1 Assignment
0 Petitions
Accused Products
Abstract
A light emitting device can include a substrate, electrodes provided on the substrate, a light emitting diode configured to emit light, the light emitting diode being provided on one of the electrodes, phosphors configured to change a wavelength of the light, and an electrically conductive device configured to connect the light emitting diode with another of the plurality of electrodes. The phosphors can substantially cove at least a portion of the light emitting diode. The phosphor may include aluminate type compounds, lead and/or copper doped silicates, lead and/or copper doped antimonates, lead and/or copper doped germanates, lead and/or copper doped germanate-silicates, lead and/or copper doped phosphates, or any combination thereof.
-
Citations
18 Claims
-
1. A light emitting device, comprising:
-
a light emitting diode configured to emit light; and a phosphor configured to change a wavelength of the light, the phosphor substantially covering at least a portion of the light emitting diode; wherein said phosphor comprises a compound including a host material, wherein divalent copper ions and oxygen are components of the host material, wherein the compound has the formula
a(M′
O).b(M″
2O).c(M″
X).d(Al2O3).e(M′
″
O).f(M″
″
2O3).g(M′
″
″
oOp).h(M″
″
″
xOy)wherein M′
is Cu, or a combination of Cu and Pb;M″
is Li, Na, K, Rb, Cs, Au, Ag or any combination thereof;M′
″
is Be, Mg, Ca, Sr, Ba, Zn, Cd, Mn or any combination thereof;M″
″
is Sc, B, Ga, In, or any combination thereof;M′
″
″
is Si, Ge, Ti, Zr, Mn, V, Nb, Ta, W, Mo, or any combination thereof;M″
″
″
is Bi, Sn, Sb, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or any combination thereof;X is F, Cl, Br, I, or any combination thereof; 0<
a≦
2;0≦
b≦
2;0≦
c≦
2;0<
d≦
8;0<
e≦
4;0≦
f≦
3;0≦
g≦
8;0<
h≦
2;1≦
o≦
2;1≦
p≦
5;1≦
x≦
2; and1≦
y≦
5. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A light emitting device, comprising:
-
a light emitting diode configured to emit light; and a phosphor configured to change a wavelength of the light, the phosphor substantially covering at least a portion of the light emitting diode; wherein said phosphor comprises a compound including a host material, wherein divalent copper ions and oxygen are components of the host material, wherein the compound has the formula
a(M′
O)·
b(M″
2O)·
c(M″
X)·
4-a-b-c(M′
″
O)·
7(Al2O3)·
d(B2O3)·
e(Ga2O3)·
f(SiO2)·
g(GeO2)·
h (M″
″
xOy)wherein M′
is Cu, or a combination of Cu and Pb;M″
is Li, Na, K, Rb, Cs, Au, Ag, or any combination thereof;M′
″
is Be, Mg, Ca, Sr, Ba, Zn, Cd, Mn, or any combination thereof;M″
″
is Bi, Sn, Sb, Sc, Y, La, In, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or any combination thereof;X is F, Cl, Br, I, or any combination thereof; 0<
a≦
4;0≦
b≦
2;0≦
c≦
2;0≦
d≦
1;0≦
e≦
1;0≦
f≦
1;0≦
g≦
1;0<
h≦
2;1≦
x≦
2; and1≦
y≦
5.
-
Specification