Operating method for a high-pressure discharge lamp

Details Operating method for a high-pressure discharge lamp Operating method for a high-pressure discharge lamp

H - Electricity

05

B

H05B 41/288 (2006.01)

Patent

CA 2533255

The invention relates to an operating method for a high-pressure discharge lamp which comprises a transparent discharge vessel (1), enclosing a substantially cylindrical discharge chamber (10), in which electrodes (2, 3) and an ionizable charge, for generating a light-emitting gas discharge, are arranged, whereby the aspect ratio is higher than 0.86. According to said invention, the high-pressure discharge lamp is operated by means of a substantially sinusoidal current at a preset frequency, lying in a frequency range above 30 kilohertz and free from acoustic resonances.

L'invention concerne un procédé pour faire fonctionner une lampe à décharge haute pression comportant une enceinte à décharge (1) translucide qui renferme un espace à décharge (10) de forme sensiblement cylindrique dans laquelle sont disposées des électrodes (2, 3) et une substance de remplissage ionisable qui servent à la génération d'une décharge dans un gaz photoluminescente, le rapport d'aspect de cette lampe étant supérieur à 0,86. Selon l'invention, on fait fonctionner la lampe à décharge haute pression avec un courant sensiblement sinusoïdal d'une fréquence préallouable comprise dans la plage supérieure à 30 kHz et exempt de résonances acoustiques.

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