METAL HALIDE ARC DISCHARGE LAMP HAVING COILED COIL ELECTRODES

摘要

?-20,759 METAL HALIDE ARC DISCHARGE LAMP HAVING COILED COIL ELECTRODES An electrode for a metal halide arc discharge lamp comprises a coiled coil on a tungsten rod, the rod diameter being equal to mils, where W is the input power to the lamp in watts. The primary wire for the coiled coil equals , where D is the rod diameter in mils, and is equal to half the diameter of the mandrel wire of the coiled coil.