Patent ID: 7501753

Claim:
A lighting apparatus for emitting light comprising: a light source emitting radiation having a peak emission from about 200 nm to about 500 nm; and a phosphor material radiationally coupled to the light source, the phosphor material comprising Eu e M m A a G g Q q N n X x , where M is at least one of Be, Ca, Sr, Ba, Cd, Sn, Pb or Zn; A is at least one of B, Ga, In, Bi, Sc, Y, La or a rare earth element other than Eu; G is at least one of Si or Ge; Q is at least one of O, S, and Se; X is at least one of F, Cl, Br and I; 0<e<2, 0<m<2, 0≦a<1, 0<g<1, 0<q<4, 0≦n<2, 0≦x<2, and 2e+2m+3a+4g=2q+3n+x.