Patent ID: 8034257

Claim:
An inorganic powder for a UV (ultraviolet) solid light source for UV LEDs (ultraviolet light emitting diodes), a formula is Me +2 1-x Ln +3 2-y Si 2 O 8 :TR +2 x :TR +3 y , wherein: Me +2 =(wherein Mg +2 , Ca +2 , Sr +2 , Ba +2 , at least one or more); TR +2 =(wherein Sm +2 , Yb +2 , Eu +2 , Dy +2 , at least one or more); TR +3 =(wherein Tb +3 , Ce +3 , Eu +3 , Dy +3 , at least one or more); Ln +3 =(wherein Y +3 , La +3 , Gd +3 , Sc +3 , Lu +3 , at least one or more), and x=0.0-0.2, y=0.0-0.1.