Abstract: A flash lamp device having a flash lamp that includes an arc tube in which a pair of electrodes are disposed in opposition and a high voltage supply proximal conductor which extends parallel to the electrodes, on the exterior of the arc tube of the flash lamp. The high voltage supply proximal conductor is supported in an interior space of a sealed tubular body having a dielectric member with a greater permittivity than that of air.

Abstract: The present invention is to provide a flash lamp device and a flash emitting device with a long working life and in which sufficient trigger energy is produced without emission errors, and the flash lamp device comprises a flash lamp with an arc tube in which a pair of electrodes are disposed in opposition, and a high voltage supply proximal conductor which extends between the electrodes on the exterior of the arc tube of this flash lamp, wherein a dielectric member with a greater permittivity than that of air is installed between the arc tube of the flash lamp and the proximal conductor, and the flash emitting device comprises a plurality of these flash lamp devices, wherein the arc tubes, high voltage supply proximal conductors, and dielectric materials of each of this plurality of flash lamp devices are supported separately on a common base.