XENON ARC LAMP WITH COMPRESSIVE CERAMIC TO METAL SEALS

摘要

An arc lamp comprising a metallic envelope member and a window, an outer surface of the window being a portion of the exterior of an enclosure for containing a gas at higher than atmospheric pressure. Sealing means for providing a hermetic seal between the metallic envelope member and the window. The sealing means comprising an annular sealing member disposed between the metallic envelope and the window. The sealing member being in contact with the window only where a first edge of the sealing member abuts a peripheral portion of the outer surface of the window, the window being spaced apart from the metallic envelope member. A second edge of the sealing member abutting an inwardly projecting flange portion of the metallic envelope member.