Short-arc discharge lamp for use as e.g. light source for background lighting of projectors, has buffer material made of metal with reduced yield stress than anode material and arranged between middle region and edge region

摘要

The lamp has an anode (31) and a cathode, which are arranged opposite to each other in a fluorescent tube. The anode comprises a middle region at a pointed end, and an edge region, which radially surrounds the middle region. The pointed end lies opposite to the cathode. A buffer material (36) made of metal with reduced yield stress than anode material is arranged between the middle region and the edge region. The buffer material consists of an insert body (35), which is separated from the anode. The insert body is inserted into an opening by the buffer material.