Flash irradiation device and flash discharge lamp

A flash irradiation device configured to irradiate a workpiece with light, the flash irradiation device comprising:

• a light-emitting tube extending in a first direction and sealing a light-emitting gas inside;
• a pair of discharging electrodes inside the light-emitting tube, the pair of the discharging electrodes being arranged distant from each other in the first direction;
• a reflecting member that is disposed on an opposite side of the light-emitting tube from the workpiece such that light emitted from the light-emitting tube in a direction opposite the workpiece is reflected off the reflecting member toward the workpiece;
• a pair of trigger electrodes on an outer wall surface of the light-emitting tube or in a vicinity of the light-emitting tube, the pair of the trigger electrodes being arranged distant from each other in the first direction;
• a lighting circuit connected to the pair of the discharging electrodes, the lighting circuit being configured to supply electric power between the pair of the discharging electrodes;
• and
• a trigger circuit connected to the pair of the trigger electrodes, the trigger circuit configured to apply a voltage for starting lighting across the pair of the trigger electrodes.