HIGH-PRESSURE DISCHARGE LAMP AND METHOD OF MANUFACTURING AN ELECTRODE FEEDTHROUGH FOR SUCH A LAMP

摘要

The invention relates to a high-pressure discharge lamp provided with a discharge vessel comprising a wall of a ceramic material, and provided with at least a feedthrough of an electrode having a cermet rod (26). The cermet rod is connected at a first end (27) to a first end (28) of a predominantly tungsten electrode pin (29) by means of a welded joint, which electrode pin is in line with the cermet rod. According to the invention, the electrode pin has, at its first end, a solidified tungsten melt (35) that is located near the interface (34) between electrode pin and cermet rod.