Borate phosphor materials for use in lighting applications
First Claim
1. A lighting apparatus for emitting white light comprising:
- a semiconductor light source; and
a phosphor composition radiationally coupled to the light source, the phosphor composition comprising a phosphor composition including at least one of;
(A) M3Ln2(BO3)4 doped with at least one activator selected from the group of Eu2+, Mn2+, Pb2+, Ce3+, Eu3+, Tb3+, and Bi3+ where M is at least one of Mg, Ca, Sr, Ba, or Zn, and Ln is at least one of Sc, Y, La, Gd, or Lu;
(B) M′
2−
xM′
x(Al, Ga)2−
y(Si, Ge)yB2O7−
zNz;
Eu2+, Mn2+, Pb2+ where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth Mg, Ca, Sr, Ba or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4; and
z=x+y;
(C) M′
2−
x+y′
M″
x−
y′
(Al, Ga)2−
y(Si, Ge)yB2O7−
z−
y′
NzXy;
Eu2+, Mn2+, Pb2+, where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth metals Mg, Ca, Sr, Ba and/or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;
(D) M′
2−
xM″
xAl2−
y+y′
Siy−
y′
B2O7−
z−
y′
NzXy;
Eu2+, Mn2+, Pb2+, where M′ and
M″
are defined above, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;
(E) M′
2−
x+x′
M″
x−
x″
Al2−
y+y′
Siy−
y′
B2O7−
z−
x′
−
y′
NzX(x′
+y′
);
Eu2+, Mn2+, Pb2+, where M′ and
M″
are defined above, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;
(F) MAl2B2O7;
Eu2+, Mn2+, Pb2+ where M═
Mg, Ca, Sr, Ba and/or Zn;
(G) MAl2−
xSixB2O7−
xNx;
Eu2+, Mn2+, Pb2+, where M═
Mg, Ca, Sr, Ba and/or Zn, and 0≦
x≦
2;
or(H), MAl2B2−
xSixO7−
xNx;
Eu2+, Mn2+, Pb2+, where M═
Mg, Ca, Sr, Ba and/or Zn, and 0≦
x≦
2.
1 Assignment
0 Petitions
Accused Products
Abstract
Boron containing phosphor compositions having the formulas (1) M3Ln2(BO3)4 doped with at least one activator selected from the group of Eu2+, Mn2+, Pb2+, Ce3+, Eu3+, Tb3+, and Bi3+ where M is at least one of Mg, Ca, Sr, Ba, or Zn, and Ln is at least one of Sc, Y, La, Gd, or Lu; (2) M2−xM′x(Al, Ga)2−y(Si, Ge)yB2O7−zNz:Eu2+, Mn2+, Pb2+ where M′ is one or more of alkali metals Na and/or K, M″ is one or more of alkaline earth Mg, Ca, Sr, Ba or Zn, 0≦x≦2, 0≦y≦2, 0≦z≦4; and z=x+y; (3) M′2−x+y′M″x−y′(Al, Ga)2−y(Si, Ge)yB2O7−z−y′NzXy:Eu2+, Mn2+, Pb2+, where M′ is one or more of alkali metals Na and/or K, M″ is one or more of alkaline earth metals Mg, Ca, Sr, Ba and/or Zn, 0≦x≦2, 0≦y≦2, 0≦z≦4; z=x+y, X═F and/or Cl, and 0≦y′≦2; (4) M′2−xM″xAl2−y+y′Siy−y′B2O7−z−y′NzXy:Eu2+, Mn2+, Pb2+, where M′ and M″ are defined above, 0≦x≦2, 0≦y≦2, 0≦z≦4; z=x+y, X═F and/or Cl, and 0≦y′≦2; (5) M′2−x+x′M″x−x″Al2−y+y′Siy−y′B2O7−z−x′−y′NzX(x′+y′):Eu2+, Mn2+, Pb2+, where M′ and M″ are defined above, 0≦x≦2, 0≦y≦2, 0≦z≦4; z=x+y, X═F and/or Cl, and 0≦y′≦2; (6) MAl2B2O7:Eu2+, Mn2+, Pb2+; where M═Mg, Ca, Sr, Ba or Zn; (7) MAl2−xSixB2O7−xNx:Eu2+, Mn2+, Pb2+, where M═Mg, Ca, Sr, Ba and/or Zn, and 0≦x≦2; and (8) MAl2B2−xSixO7−xNx:Eu2+, Mn2+, Pb2+, where M═Mg, Ca, Sr, Ba and/or Zn, and 0≦x≦2. Also disclosed are light emitting devices including a light source and at least one of the above phosphor compositions.
-
Citations
19 Claims
-
1. A lighting apparatus for emitting white light comprising:
-
a semiconductor light source; and a phosphor composition radiationally coupled to the light source, the phosphor composition comprising a phosphor composition including at least one of; (A) M3Ln2(BO3)4 doped with at least one activator selected from the group of Eu2+, Mn2+, Pb2+, Ce3+, Eu3+, Tb3+, and Bi3+ where M is at least one of Mg, Ca, Sr, Ba, or Zn, and Ln is at least one of Sc, Y, La, Gd, or Lu; (B) M′
2−
xM′
x(Al, Ga)2−
y(Si, Ge)yB2O7−
zNz;
Eu2+, Mn2+, Pb2+ where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth Mg, Ca, Sr, Ba or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4; and
z=x+y;(C) M′
2−
x+y′
M″
x−
y′
(Al, Ga)2−
y(Si, Ge)yB2O7−
z−
y′
NzXy;
Eu2+, Mn2+, Pb2+, where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth metals Mg, Ca, Sr, Ba and/or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;(D) M′
2−
xM″
xAl2−
y+y′
Siy−
y′
B2O7−
z−
y′
NzXy;
Eu2+, Mn2+, Pb2+, where M′ and
M″
are defined above, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;(E) M′
2−
x+x′
M″
x−
x″
Al2−
y+y′
Siy−
y′
B2O7−
z−
x′
−
y′
NzX(x′
+y′
);
Eu2+, Mn2+, Pb2+, where M′ and
M″
are defined above, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;(F) MAl2B2O7;
Eu2+, Mn2+, Pb2+ where M═
Mg, Ca, Sr, Ba and/or Zn;(G) MAl2−
xSixB2O7−
xNx;
Eu2+, Mn2+, Pb2+, where M═
Mg, Ca, Sr, Ba and/or Zn, and 0≦
x≦
2;
or(H), MAl2B2−
xSixO7−
xNx;
Eu2+, Mn2+, Pb2+, where M═
Mg, Ca, Sr, Ba and/or Zn, and 0≦
x≦
2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
- 13. A phosphor having the formula M3Ln2(BO3)4 doped with at least one activator selected from the group of Eu2+, Mn2+, Pb2+, Ce3+, Eu3+, Tb3+, and Bi3+ where M is at least one of Mg, Ca, Sr, Ba, or Zn, and Ln is at least one of Sc, Y, La, Gd, or Lu.
-
15. A phosphor having the formula M′
-
2−
xM′
x(Al, Ga)2−
y(Si, Ge)yB2O7−
zNz;
Eu2+, Mn2+, Pb2+ where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth Mg, Ca, Sr, Ba or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4; and
z=x+y. - View Dependent Claims (16)
-
2−
-
17. A phosphor blend comprising:
-
(A) a first phosphor selected from the group consisting of (1) M3Ln2(BO3)4 doped with at least one activator selected from the group of Eu2+, Mn2+, Pb2+, Ce3+, Eu3+, Tb3+, and Bi3+ where M is at least one of Mg, Ca, Sr, Ba, or Zn, and Ln is at least one of Sc, Y, La, Gd, or Lu;
(2) M2−
xM′
x(Al, Ga)2−
y(Si, Ge)yB2O7−
zNz;
Eu2+, Mn2+, Pb2+ where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth Mg, Ca, Sr, Ba or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4; and
z=x+y;
(3) M′
2−
x+y′
M″
x−
y′
(Al, Ga)2−
y(Si, Ge)yB2O7−
z−
y′
NzXy;
Eu2+, Mn2+, Pb2+, where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth metals Mg, Ca, Sr, Ba and/or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;
(4) M′
2−
xM″
xAl2−
y+y′
Siy−
y′
B2O7−
z−
y′
NzXy;
Eu2+, Mn2+, Pb2+, where M′ and
M″
are defined above, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;
(5) M′
2−
x+x′
M″
x−
x″
Al2−
y+ySiy−
y′
B2O7−
z−
x′
−
y′
NzX(x′
+y′
);
Eu2+, Mn2+, Pb2+, where M′ and
M″
are defined above, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;
(6) MAl2B2O7;
Eu2+, Mn2+, Pb2+;
where M═
Mg, Ca, Sr, Ba or Zn;
(7) MAl2−
xSixB2O7−
xNx;
Eu2+, Mn2+, Pb2+ where M═
Mg, Ca, Sr, Ba and/or Zn, and 0≦
x≦
2; and
(8), MAl2B2−
xSixO7−
xNx;
Eu2+, Mn2+, Pb2+ where M═
Mg, Ca, Sr, Ba and/or Zn, and 0≦
x≦
2;(B) and at least one additional phosphor. - View Dependent Claims (18)
-
-
19. An arc discharge lamp having an improved color rendering index for a given color coordinated temperature, the lamp comprising:
-
a lamp envelope enclosing a discharge space and having an inner surface; an ionizable medium within said lamp envelope comprising mercury and an inert gas; first and second electrodes; and a phosphor layer disposed on an inner surface of the lamp envelope comprising a phosphor composition including at least one of; (A) M3Ln2(BO3)4 doped with at least one activator selected from the group of Eu2+, Mn2+, Pb2+, Ce3+, Eu3+, Tb3+, and Bi3+ where M is at least one of Mg, Ca, Sr, Ba, or Zn, and Ln is at least one of Sc, Y, La, Gd, or Lu; (B) M′
2−
xM″
x(Al, Ga)2−
y(Si, Ge)yB2O7−
zNz;
Eu2+, Mn2+, Pb2+ where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth Mg, Ca, Sr, Ba or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4; and
z=x+y;(C) M′
2−
x+y′
M″
x−
y′
(Al, Ga)2−
y(Si, Ge)yB2O7−
z−
y′
NzXy;
Eu2+, Mn2+, Pb2+, where M′
is one or more of alkali metals Na and/or K, M″
is one or more of alkaline earth metals Mg, Ca, Sr, Ba and/or Zn, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;(D) M′
2−
xM″
xAl2−
y+y′
Siy−
y′
B2O7−
z−
y′
NzXy;
Eu2+, Mn2+, Pb2+, where M′ and
M″
are defined above, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;(E) M′
2−
x+x′
M″
x−
x′
Al2−
y+ySiy−
y′
B2O7−
z−
x′
−
y′
NzX(x′
+y′
);
Eu2+, Mn2+, Pb2+, where M′ and
M″
are defined above, 0≦
x≦
2, 0≦
y≦
2, 0≦
z≦
4;
z=x+y, X═
F and/or Cl, and 0≦
y′
≦
2;(F) MAl2B2O7;
Eu2+, Mn2+, Pb2+ where M═
Mg, Ca, Sr, Ba and/or Zn;(G) MAl2−
xSixB2O7−
xNx;
Eu2+, Mn2+, Pb2+, where M═
Mg, Ca, Sr, Ba and/or Zn, and 0≦
x≦
2;
or(H) MAl2B2−
xSxO7−
xNx;
Eu2+, Mn2+, Pb2+, where M═
Mg, Ca, Sr, Ba and/or Zn, and 0≦
x≦
2.
-
Specification