Patent ID: 6696802
Filing Date: 2004-02-24
Classification: H01J,H05B

Abstract:
A lamp assembly comprising:an electrodeless bulb which is symmetrical about an axis and which contains a light emissive fill which emits light when the bulb is excited by a radio frequency field coupled to the fill; an electrically conductive coupler comprising a plurality of turns which are symmetrical about an axis of the coupler, the turns defining a volume that at least partially contains the bulb; and a conductor connected to a center portion of the electrically conductive coupler with the connection of the conductor to the coupler providing a fixing of the coupler relative to the bulb which, when the conductor is connected to a source of radio frequency electrical potential, conducts a radio frequency current producing a radio frequency electrical potential on the electrically conductive coupler that produces the radio frequency field coupled to the fill.