HIGH PRESSURE SODIUM DISCHARGE TUBE SUPPORT STRUCTURE

摘要

A high pressure sodium lamp has an outer envelope containing a rare gas at a pressure of approximately one atmosphere. A metallic reflective layer is disposed on a portion of the outer envelope for defining a reflector. Mounting means mounts the discharge device of the lamp within the outer envelope and is comprised of a pair of conductors for providing a conductive path to the discharge device. The pair of conductors are configured to have a breakdown voltage between them greater than a certain value, and to maintain the breakdown voltage between the conductors and the metallic reflector greater than the certain value.