Abstract: A phosphor blend suitable for use in a fluorescent lamp for emitting white light is disclosed. The phosphor blend includes a first phosphor, a second phosphor and a third phosphor. The first phosphor is selected from a europium doped barium magnesium aluminate, a europium doped strontium aluminate, and a combination thereof; and the second phosphor has formula Y2O3:Eu3+. The third phosphor is selected from a phosphor of formula I: (A1-xMnx)E4O7, a phosphor of formula II: (L1-y-zMyMnz)2P2O7, and a combination thereof, where 0<x?0.10, 0<y?0.20, 0<z?0.10; A is Ca, Ba, Sr, Zn, Mg, or a combination thereof; E is Ga, Al, In, or a combination thereof; L is Ca, Ba, Sr, Zn, Mg, Na, or a combination thereof; and M is at least one of Sn, and Ce. A fluorescent lamp including such phosphor blend is also disclosed.

Abstract: In accordance with one aspect of the present invention, a core?shell phosphor composition is provided that includes a core comprising magnesium oxide; and a shell at least partially enclosing the core, wherein the shell comprises a shell material having formula (I) (Y1?xEux)2O3 ??(I) wherein, 0<x<0.95. In accordance to another aspect of the invention a method of making the core?shell phosphor and a light source including the core?shell phosphor are provided.

Abstract: In accordance with one aspect of the present invention, a core-shell phosphor composition is provided that includes a core comprising at least one material selected from the group consisting of aluminum phosphate, gallium phosphate, calcium phosphate, magnesium phosphate, zinc phosphate and boron phosphate; and a shell at least partially enclosing the core, wherein the shell comprises a shell material having formula (I) La1-x-yCexTbyPO4 ??(I) wherein, 0<x<0.95, and 0<y<0.5. In accordance to another aspect of the invention a method of making the core-shell phosphor and a light source including the core-shell phosphor are provided.

Abstract: Cerium, gadolinium and terbium doped aluminum phosphates of formula I may be used in fluorescent lamps Al1-x-y-z-a-b-c-d-eTbxCeyGdzLuaScbIncLadGaePO4??I wherein x is greater than or equal to about 0.001 and less than or equal to about 0.3; y is greater than or equal to about 0.001 and less than or equal to about 0.3; z is greater than or equal to about 0.01 and less than or equal to about 0.3; a is greater than or equal to about 0.01 and less than or equal to about 0.1; b is greater than or equal to about 0.01 and less than or equal to about 0.1; c is greater than or equal to about 0.01 and less than or equal to about 0.1. d is greater than or equal to about 0.01 and less than or equal to about 0.1; and e is greater than or equal to about 0.01 and less than or equal to about 0.1.

Abstract: An LED lamp includes a light source configured to emit radiation with a peak intensity at a wavelength between about 250 nm and about 550 nm; and a phosphor composition configured to be radiationally coupled to the light source. The phosphor composition includes particles of a phosphor of formula I, said particles having a coating composition disposed on surfaces thereof; ((Sr1?zMz)1?(x+w)AwCex)3(Al1?ySiy)O4+y+3(x?w)F1?y?3(x?w)??I wherein the coating composition comprises a material selected from aluminum oxide, magnesium oxide, calcium oxide, barium oxide, strontium oxide, zinc oxide, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, strontium hydroxide, zinc hydroxide, aluminum phosphate, magnesium phosphate, calcium phosphate, barium phosphate, strontium phosphate, and combinations thereof; and A is Li, Na, K, or Rb, or a combination thereof; M is Ca, Ba, Mg, Zn, or a combination thereof; and 0<x?0.10, 0?y?0.5, 0?z?0.5, 0?x?x.