Patent ID: 7554129

Claim:
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″ 2 O).c(M″X).d(Al 2 O 3 ).e(M′″O).f(M ″″ 2 O 3 ).g(M′″″ o O p ).h(M″″″ x O y ) 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; and 1≦y≦5.