Method of operating a high-pressure discharge lamp

Details Method of operating a high-pressure discharge lamp Method of operating a high-pressure discharge lamp

1984-12-04

1989-09-19

Griffin, Robert L.

Electric lamp and discharge devices: systems

Discharge device load

315DIG2, H01J 1736

Patent

active

048684635

ABSTRACT:
A method of and a device for the operation of a high-pressure discharger 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 from a supply source which supplies a power of periodically alternating value. According to the invention, for each power frequency .nu..sub.i (i=1,2, . . .) the relation .nu..sub.i .gtoreq.60 .nu..sub.1 is satisfied, where .nu..sub.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.

REFERENCES:
patent: 4002944 (1977-01-01), McNeill et al.
patent: 4052636 (1977-10-01), Strok
patent: 4170746 (1979-10-01), Davenport
patent: 4195253 (1980-03-01), Drop et al.
patent: 4527097 (1985-07-01), van der Heijden et al.

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