Patent ID: 8279162
Filing Date: 2012-10-02
Classification: G02F,G09F,H01J

Abstract:
1. A discharge lamp comprising: a bottom plate, a top plate through which light exits, the top plate being at least partially transparent, a plurality of rib-like supporting elements running parallel to one another, the rib-like supporting elements providing a connection between the bottom plate and the top plate and bearing linearly on one of the top plate and the bottom plate, a plurality of discharge spaces between the bottom plate and the top plate for accommodating a discharge medium, a plurality of sets of electrodes for generating dielectrically impeded discharges in the discharge medium, each set of electrodes including an anode and a cathode which are labeled as such and which are distinguishable from each other, wherein a minimum discharge spacing between the electrodes of each set is at least 10 mm; and a dielectric barrier between at least one part of the set of electrodes and the discharge medium, wherein at least the anodes are separated from the discharge medium by the dielectric barrier, the cathodes each comprising a pair of cathode elements, and the anodes each comprising a pair of anode elements, and wherein each anode element is adjacent to another anode element and a cathode element, and each cathode element is adjacent to another cathode element and an anode element, except at peripheral regions of the plates, wherein the electrodes run in a main direction parallel to the rib-like supporting elements, at least two electrodes of different polarity being associated with each of the plurality of discharge spaces which are defined between adjacent rib-like supporting elements, the electrodes being spaced apart from regions at which the rib-like supporting elements bear on said one of the top plate and the bottom plate.