Patent ID: 8314538

Claim:
A dielectric barrier discharge lamp comprising: a discharge vessel, which has an outer tube, which surrounds a discharge space filled with a discharge medium; an outer electrode, which is arranged on the outer side of the outer tube; an elongate inner electrode, which is arranged axially within the outer tube; at least one retaining disk with an axial bore, through which the elongate inner electrode runs, the retaining disk extending substantially from the inner electrode up to the inner side of the outer tube, as a result of which the inner electrode is centered at least indirectly within the discharge vessel; wherein the retaining disk is supported on both sides loosely in the direction of the longitudinal axis by a first supporting means on the left-hand side and a second supporting means on the right-hand side, and wherein the inner electrode is surrounded, at least in the region of the retaining disk, by an inner tube, against which the retaining disk is supported.