METHOD OF OPERATING A HIGH-PRESSURE DISCHARGE LAMP

摘要

The invention relates to the operation of a high-pressure discharge lamp provided with a discharge vessel (3) which accommodates an ionizable filling and two electrodes (4, 5), between which electrodes in the operating condition the discharge takes place. The lamp is operated with a supply source which supplies a power of periodically alternating value. According to the invention, for each power frequency gamma 1
gamma 1 >/= 60. gamma 1, where gamma 1 is the lowest frequency at which in the operating condition of the lamp standing pressure waves can occur in the discharge vessel (3). Thus, it is possible to operate the lamp so as to be free from arc instabilities due to standing pressure waves.