Abstract: An electron emissive material comprises an alkaline earth metal halide composition and operable to emit electrons on excitation. A lamp including an envelope, an electrode including an alkaline earth metal halide electron emissive material and a discharge material, is also disclosed.

Abstract: Phosphor compositions having the formula EueMmAaGgQqNnXx, where M is at least one of Be, Mg, Ca, Sr, Ba, Cd, Sn, Pb or Zn; A is at least one of B, Al, 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; and light emitting devices including a light source and the above phosphor. Also disclosed are blends of EueMmAaGgQqNnXx and one or more additional phosphors and light emitting devices incorporating the same.

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 C