Phosphor product containing indium and method of producing same

Claim 1

A PHOSPHOR COMPOSITION CONSISTING ESSENTIALLY OF A PREDOMINANT AMOUNT OF CRYSTALLIZED INDIUM SULFIDE IN SPINEL FORM AND A MINOR AMOUNT, FROM ABOUT 0.01% TO ABOUT 10%, OF A METAL BASE CRYSTALLIZING AGENT SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM CHLORIDE, MAGNESIUM CHLORIDE AND SODIUM CHLORIDE, MAGNESIUM CHLORIDE AND SODIUM BROMIDE, MAGNESIUM FLUORIDE AND SODIUM CHLORIDE, MAGNESIUM FLUORIDE AND SODIUM BROMIDE, MAGNESIUM CHLORIDE AND POTASSIUM BROMIDE, MAGNESIUM CHLORIDE AND POTASSIUM CHLORIDE, MAGNESIUM FLUORIDE AND POTASSIUM BROMIDE, AND MAGNESIUM FLUORIDE AND POTASSIUM CHLORIDE, SUFFICIENT TO FORM A CRYSTAL LATTICE IN SAID SULFIDE FOR THE ABSORPTION OF AN ACTIVATOR SELECTED FROM THE GROUP CONSISTING OF CADMIUM, COOPER, GOLD, LEAD LITHIUM, MANGANESE, SILVER, TIN, ZINC, AND THE RARE EARTH METALS, AND THEIR HALIDE, NITRATE, NITRIDE, OXIDE, SULFATE, AND SULFIDE SALTS, AND OF A METAL BASE ACTIVATOR, FROM ABOUT 0.001% TO ABOUT 0.1%, SUFFICIENT TO PROVIDE PRIMARY FLUORESCENT CENTERS IN SAID CRYSTAL, SAID ACTIVATOR HAVING BEEN ABSORBED IN SAID CRYSTAL LATTICE.