Patent ID: 7780871

Claim:
An inorganic light-emitting material for a UV solid light source, using a UV solid light source through external covered inorganic light-emitting material to excite and emit white light, wherein the chemical formula of the inorganic light-emitting material is Sr 2 CaLn 2 (SiO 4 ) 3±δ which contains light centers, wherein Ln is selected from the group consisting of Lu, Y, Gd, Sc, Yb, and Tb and wherein the light-emitting centers consist of Eu +2 , Sm +2 , Yb +2 , Mn +2 , Sn +2 , and Cu +2 distributed inside the Sr and/or Ca lattice nodes and consist of Ce +3 , Eu +3 , Tb +3 , Sm +3 , and Dy +3 distributed inside the Ln lattice nodes and 0≦δ≦0.2.