DIELECTRIC BARRIER DISCHARGE LAMP AND ULTRAVIOLET RADIATION DEVICE

PROBLEM TO BE SOLVED: To improve adhesion of a discharge tube and an electrode in press contact with an outer periphery of the discharge tube.SOLUTION: The dielectric barrier discharge lamp comprises: a discharge tube 21 filled with discharging gas; a pair of electrodes 22A and 22B opposed to each other on an outer periphery 21a of the discharge tube 21; a pair of pressing members 23A and 23B pressing a pair of the electrodes 22A and 22B into contact with the outer periphery 21a while elastically deforming them; and a pair of stationary blocks 24A and 24B to which both longitudinal ends of a pair of the pressing members 23A and 23B are fixed while a pair of the pressing members 23A and 23B bring a pair of the electrodes 22A and 22B into contact with the outer periphery 21a. While a pair of the pressing members 23A and 23B are isolated from a pair of the electrodes 22A and 22B, a center part contact face 23X of each of the pressing members 23A and 23B is swollen in a pressing direction more than an outside part contact face 23Y.