Abstract: In a discharge lamp unit in which a discharge lamp (10), which is formed by pinch-sealing (13a, 13b) a glass tube in such a manner as to define a closed glass ball (12) forming an electric discharge region substantially at the middle of the ball and in which discharge electrodes (15a, 15b) are arranged confronted with each other, is supported at both ends by metal supports (30, 40) which are welded to a short lead support (22) and a long lead support (24) protruding from an insulating base (20) in such a manner that the lead supports (22, 24) are parallel to one another with a predetermined distance therebetween and are parallel to the discharge axis of the lamp. The metal support (30) which supports the rear end portion of the discharge lamp has a discharge lamp holding portion (34) which is arcuate, and the part (14) of the rear end portion of the discharge lamp which is held by the discharge lamp holding portion of the metal support is circular in cross section.

Abstract: A discharge lamp device having an insulator base made of a synthetic resin integrally bonded to a globe holding member made of ceramic wherein a discharge lamp is attached. Also provided is a pair of lead supports for supporting the discharge lamp at its opposite ends. The discharge lamp and lead supports are completely surrounded by an ultraviolet ray shielding globe which is fixed to globe holding member. The globe effectively absorbs harmful ultraviolet rays having a wavelength in a predetermined wavelength range.