Phosphors for white light generation from UV emitting diodes
 Ca.sub.8 Mg(SiO.sub.4).sub.4 Cl.sub.2 :Eu.sup.2+,Mn.sup.2+ and Y.sub.2 O.sub.3 :Eu.sup.3+,Bi.sup.3+ are phosphors which have been sensitized to absorb ultraviolet radiation, such as from a light emitting diode, and to convert the radiation into visible light. A phosphor conversion material blend comprises Ca.sub.8 Mg(SiO.sub.4).sub.4 Cl.sub.2 :Eu.sup.2+,Mn.sup.2+ ; Y.sub.2 O.sub.3 :Eu.sup.3+,Bi.sup.3+, and known blue phosphors that absorb ultraviolet radiation from a LED and convert the radiation into visible bright white light. Also, a light emitting assembly comprises at least one of a red, green and blue phosphor for absorbing and converting ultraviolet radiation into visible light. A laser diode can be used to activate the phosphors to provide improved efficiency and brightness. 
General Electric Company
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inventional additional additional additional inventional
Thomas Frederick William Winder Alok Mani John Martin Anil Raj
Soules Beers Srivastava Davenport Duggal