Electrodeless discharge lamp

H - Electricity – 01 – J

Patent

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Details

H01J 65/04 (2006.01) H01J 61/35 (2006.01)

Patent

CA 2196351

An electrodeless discharge lamp comprises a sealed discharge vessel (1) containing a fill capable of sustaining a discharge when suitably energised, and circuitry (6,7) for energising a solenoid (5) to produce an RF electromagnetic field in the vessel to energise the fill. A light transmissive, inherently conductive, polymer layer (20) is provided on the exterior of the discharge vessel for confining the RF field within the lamp. An outer, insulating layer (21) may also be provided over the conductive layer (20).

Lampe à décharge sans électrodes constituée d'une enceinte étanche (1) renfermant un milieu gazeux capable de supporter une décharge électrique lorsqu'il est convenablement excité, et des circuits (6, 7) de mise sous tension d'un solénoïde (5) pour créer dans l'enceinte un champ électromagnétique à haute fréquence destiné à exciter le milieu gazeux. La surface extérieure de l'enceinte à décharge est revêtue d'une couche de polymère (20) transparente et conductrice servant à confiner le champ électromagnétique dans l'enceinte à décharge. Ce revêtement (20) peut ou non être recouvert d'un revêtement isolant (21).

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