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ALKALINE EARTH BORATE PHOSPHORS

United States Patent Application

20110127905
A1
View the Complete Application at the US Patent & Trademark Office
A phosphor of formula I is included phosphor composition in a lighting apparatus capable of emitting white light Ba.sub.2-aSr.sub.aCa.sub.1-x-y-zMg.sub.xCe.sub.yM.sup.1.sub.bM.sup.2.sub- .z(BO.sub.3).sub.2 (I) wherein M.sup.1 is Eu, Tb, Pr, Dy, Mn, or a combination thereof; M.sup.2 is Li, Na, K, Rb, or a combination thereof; a.gtoreq.0; b.ltoreq.0.1; 0.95>x>0; 0<y.ltoreq.0.1; and z.ltoreq.0.1. The lighting apparatus includes a semiconductor light source in addition to the phosphor composition.
Setlur, Anant Achyut (Niskayuna, NY), Manepalli, Satya Kishore (Bangalore, IN)
GENERAL ELECTRIC COMPANY (Schenectady NY)
12/ 629,595
December 2, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0001] This invention was made with Government support under contract number DE-FC26-06NT42934 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.