High-pressure discharge lamp

摘要

A high-pressure discharge lamp may include a discharge vessel, which encloses a discharge volume, wherein a filler is housed in the discharge volume, wherein the discharge vessel is equipped with an end which is tubular and in which a two-part feedthrough is sealed by means of glass solder, wherein an electrode is attached to the feedthrough, which protrudes into the discharge volume, wherein the feedthrough is composed of a front part and a rear part, wherein the rear part is manufactured from niobium material and the front part is manufactured from iridium.

主权项

1. A high-pressure discharge lamp comprising:
a discharge vessel enclosing a discharge volume and being equipped with an end which is tubular; a feedthrough comprising a front part and a rear part, the feedthrough being sealed in the end of the discharge vessel by means of glass solder; an electrode having a shaft attached to the front part of the feedthrough, the electrode protruding at least partially into the discharge volume; a filler housed in the discharge volume; wherein the rear part of the feedthrough is coupled to the front part; and wherein the rear part is manufactured from niobium material and the front part is manufactured from iridium; wherein the front part is at least partially spherical; wherein the diameter of the shaft of the electrode is 20-30% smaller than the diameter of the front part.