Patent ID: 7586244
Filing Date: 2009-09-08
Classification: H01J

Abstract:
1. A high-pressure discharge lamp comprising: a burner having a symmetrical discharge chamber, where at least the outer contour of the burner has an elliptical shape in the region of the discharge chamber; electrodes extending into the discharge chamber and arranged in mutual opposition on the major axis of symmetry of the discharge chamber; a multilayer interference filter on the outer contour of the burner in the region of the discharge chamber, wherein the interference filter reflects light from at least one wavelength range of UV light into a space between the electrodes, and wherein the burner is an integral piece that hermetically encloses and defines the discharge chamber; wherein a temperature of a discharge arc of the lamp is between 6000 and 7000° C.; and wherein light from those wavelength ranges of the UV light that are not reflected by the interference filter is absorbed.