DIMMABLE AMALGAM LAMP AND METHOD FOR OPERATING THE AMALGAM LAMP WHILE DIMMED

A dimmable amalgam lamp is provided having a quartz glass tube enclosing a discharge chamber comprising a filling gas, and closed by pinching at both ends thereof, through which at least one current feedthrough is fed through one coil-shaped electrode each in the discharge chamber, wherein at least...

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Bibliographische Detailangaben
Hauptverfasser:	ALEX VORONOV, KLAUS SPITZENBERG, FRANZ-JOSEF SCHILLING
Format:	Patent
Sprache:	eng ; por
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY
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Beschreibung
Zusammenfassung:	A dimmable amalgam lamp is provided having a quartz glass tube enclosing a discharge chamber comprising a filling gas, and closed by pinching at both ends thereof, through which at least one current feedthrough is fed through one coil-shaped electrode each in the discharge chamber, wherein at least one of the pinches has a hollow space having an opening to the discharge chamber for receiving a deposit of amalgam that can be heated by the coil-shaped electrode. In order to provide a method for operating the amalgam lamp on this basis, ensuring a high efficiency of UV-C radiation even when dimmed, the invention proposes that the current feedthrough include an outgoing line and a return line for an additional current Iadd, and that the additional current Iadd is adjusted as a function of the level of the actual lamp current Iactual.