Patent ID: 8427056
Filing Date: 2013-04-23
Classification: H01J

Abstract:
1. A high-intensity discharge lamp comprising: an arc tube including a main tube portion and a pair of thin tube portions provided at ends of the main tube portion, the arc tube having a pair of electrodes; at least one power supply line; a container housing the arc tube; and an adjacent conductor disposed within the container and aiding the arc tube to start discharge, wherein the adjacent conductor includes a strip-shaped metal plate, at least one end portion of the metal plate is a gripping portion for gripping one of the thin tube portions, the gripping portion being curved along an outer circumferential surface of the one of the thin tube portions so as to be in contact with the outer circumferential surface, and one end of the metal plate is a free end that includes a fixing portion for attachment to the power supply line, and the gripping portion is elastically deformable in accordance with thermal expansion of the one of the thin tube portions, wherein the gripping portion and the fixing portion are aligned along a perpendicular direction to a tube axis extending through the pair of thin tube portions and the pair of electrodes.