Green-light emitting phosphors and light sources using the same
 A phosphor composition absorbs ultraviolet radiation and emits a green visible light. The phosphor composition comprises at least one of: Ba.sub.2 SiO.sub.4 :Eu.sup.2+ ; Ba.sub.2 MgSi.sub.2 O.sub.7 :Eu.sup.2+ ; Ba.sub.2 ZnSi.sub.2 O.sub.7 :Eu.sup.2+ ; BaAl.sub.2 O.sub.4 :Eu.sup.2+ ; SrAl.sub.2 O.sub.4 :Eu.sup.2+ ; and BaMg.sub.2 Al.sub.16 O.sub.27 :Eu.sup.2+,Mn.sup.2+. Further, when the green-light emitting phosphor is combined with appropriate red and blue phosphors in a phosphor conversion material blend, and the phosphor conversion material blend absorbs ultraviolet radiation, and emits a bright white light with high brightness and quality. The ultraviolet radiation source may comprise a semiconductor ultraviolet radiation source. 
General Electric Company
H C H Y
H01L C09K H05B Y02B
inventional inventional inventional additional
William Winder Alok Mani
Beers Srivastava