Abstract: In the reflector high-pressure discharge lamp, including a gastight discharge vessel (1) made from quartz glass with two necks (1b, 1c) fitted diametrically to the envelope of the discharge bulb (1a), with a tungsten electrode (3) being fused in a gastight manner into each of the necks by a sealing foil (4a, 4b), with a fill including at least one noble gas, optionally metal halides (5) and optionally mercury, and a reflector (8) for collecting and focusing the light emitted from the discharge vessel (1), with holes for holding the discharge vessel (1) and for supply conductors (7) to pass through, and with a covering pane made from medium which is transparent to light, the space between the reflector (8) and the discharge vessel (1) is closed off in a gastight manner and filled with an inert gas or inert gas mixture.

Abstract: In the case of an electrode (5) for a high-pressure discharge lamp, at least a part of the surface of the electrode is covered with a dendritic layer (13) made from high-melting-point metal. A substantially longer service life is achieved thereby.