Patent ID: 7977884

Claim:
A high-pressure discharge lamp having a ceramic discharge vessel with a central part and two ends, which are sealed by two seals, electrodes being anchored in the seals and extending into the discharge volume enveloped by the discharge vessel, a filling, which contains metals and/or metal halides, being accommodated in the discharge volume, characterized in that fin-like laminates are positioned at least on one end and extend radially outwards at their height H, the surface of the laminates overall predominantly being arranged in a region which is positioned, remote from the discharge, behind a line which is fixed by the projection of the tip of the electrode onto the inner surface of the discharge vessel, wherein the laminates and discharge vessel are integral with each other and comprise Al 2 O 3 , AlON or AlN, and wherein the laminates have two broad sides and one narrow side, the narrow side being positioned radially on the outside.