HIGH PRESSURE SODIUM LAMP

摘要

The present invention relates to a high pressure sodium lamp comprising a n evacuated cover (3) including a base part (7), an arc tube (5) comprising a first (13) and a second (15) electrode each being connected to the base pa rt (7) via conductor members (17, 23). At least one conductor member (23) is arranged isolated by a shielding member (31) for preventing, during operati on of the high pressure sodium lamp (1), the photo electronic stream from th e at least one conductor member (23) to the arc tube (5). The lamp comprises a second arc tube.