Phosphor blends for fluorescent lamps

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.

Dependencies are inferred from the claim text.