Patent ID: 8334652

Claim:
A high-pressure discharge lamp, comprising: an elongated ceramic discharge vessel, at the ends of which an electrode system with an electrode tip pointing towards the discharge is mounted in a seal, the seal being tubular, the discharge vessel having an aspect ratio of at least 1.5, the discharge vessel having a metal halide fill and a wall load, expressed in terms of the region of the discharge length between the electrodes, of more than 25 W/cm 2 , wherein the lamp is configured for operation with longitudinal acoustic modulation, and wherein the specific rated power, which is the rated power expressed in terms of the entire outer surface area of the discharge vessel lies between 17 and 22 W/cm 2 , the entire outer surface area of the discharge vessel comprising a hot subregion of the surface area and a subregion of the surface area which induces cooling, and wherein the wall load in the hot subregion of the surface area, which extends between the tips of the electrodes, lies in the range of between 28 and 40 W/cm 2 .