A discharge lamp of the short arc type with high arc stability in which the arc
is prevented from fluctuating during operation is achieved by providing a short
arc discharge lamp in which the hermetically sealed tubes which extend from the
arc tube, and the lead pins located within the arc tube which support the electrodes,
are sealed relative to one another by graded glass, and wherein cylindrical retaining
bodies are attached concentrically within the hermetically sealed tubes and are
penetrated by the lead pins, a metal foil that has several cambers which extend
in the axial direction of the lamp being located between the cylindrical retaining
bodies and the lead pins.