Polycristalline, poorly crystallized or amorphous phosphor and manufacturing process

摘要

A pulverized transparent polycrystalline or poorly crystallized mineral material is mixed with a metallic ion precursor and a luminescent ion precursor, the mixture is heated at 1200-2000 degrees C, to liberate the metallic and luminescent ions and to diffuse the ions into the mineral, and the obtained powder is ground. <??>An Independent claim is given for the luminescent material comprising a transparent polycrystalline or poorly crystallized mineral material doped with metallic and luminescent ions.