METAL HALIDE LAMPS WITH FAST RUN-UP AND METHODS OF OPERATING THE SAME

摘要

The present disclosure describes metal halide lamps having a discharge vessel, a discharge space, and at least one electrode extending into the discharge vessel in a sealed fashion so as to be in contact with the discharge space. A fill gas, at least one fill material comprising a first metal halide, and optionally at least one volatile material having a higher vapor pressure than the first halide are present in the discharge space. In one aspect, the electrode tip has a current rating of about P750V, where P is the lamp power. In some cases, the lamps can exhibit at least one of reduced run-up time, increased initial light output, and long life, while remaining useful for general lighting applications. Also described are methods for operating such metal halide lamps.