Metal halide lamp with oversaturated red

摘要

A metal halide lamp includes a ceramic discharge vessel that encloses a discharge space which accommodates two electrodes and contains a salt filling. The salt filling includes sodium iodide, thallium iodide, calcium iodide, cerium iodide, and barium iodide as a colorpoint stabilizing additive. The salt filling further includes calcium iodide and thallium iodide, and substantially no sodium iodide. The salt filling further comprises mercury iodide.