Direct current discharge lamp

H - Electricity – 01 – J

Patent

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Details

H01J 61/073 (2006.01) H01J 61/82 (2006.01) H01J 61/86 (2006.01)

Patent

CA 2700198

The invention relates to a direct-current discharge lamp comprising an anode (10) and a cathode (12) disposed across from one another at a predetermined distance (r) inside a discharge vessel (14) filled with a filling gas, wherein electrical power (P) may be applied to the anode (10) and cathode (12) in order to produce a gas discharge, wherein at least the distance (r) between the anode (10) and cathode (12), the electrical power (P), and a geometry of the anode (10) are adapted to one another such that, in the heated state of the direct-current discharge lamp, a region (22) of a surface (24) of the anode (10) facing the cathode (12) is free flowing.

L'invention concerne une lampe à décharge à courant continu comportant une anode (10) et une cathode (12) qui sont disposées à une distance déterminée (r) en face l'une de l'autre à l'intérieur d'une enceinte à décharge (14) remplie de gaz, l'anode (10) et la cathode (12) étant soumises à une puissance électrique (P) pour générer une décharge dans le gaz. La distance (r) entre l'anode (10) et la cathode (12), la puissance électrique (P) et la géométrie de l'anode (10) au moins sont mutuellement adaptées de manière à ce que, lorsque la lampe à décharge à courant continu est chaude, une zone (22) d'une surface (24) de l'anode (10) orientée vers la cathode (12) est apte à l'écoulement.

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