HIGH-PRESSURE DISCHARGE LAMP HAVING A LEAD-THROUGH WITH A PROTUBERANCE

摘要

The invention relates to a high-pressure discharge lamp comprising a discharge vessel (3) enclosing a discharge space (3b) and provided with two main electrodes (4,5) Each of the main electrodes is connected to a lead-through member (40,50), which is enclosed with a clearance space (10) by a closing part (30) and is connected thereto by means of a melting glass connection (9) in a gas-tight manner. According to the invention, the lead-through member is provided with a protuberance (51) reaching as far as the closing part in such a manner that the lead-through member (50) is passed with clamping fit through the ceramic closure member. Thus, the lead-through member is fixed, as a result of which the manufacture of the lamp is considerably simplified. Figure 2.