DIELECTRIC BARRIER DISCHARGE LAMP, DEVICE FOR LIGHTING DIELECTRIC BARRIER DISCHARGE LAMP, AND ULTRAVIOLET IRRADIATION DEVICE

摘要

PROBLEM TO BE SOLVED: To attain high ultraviolet ray illuminance.;SOLUTION: A mesh-like internal electrode 2 arranged with a large number of unit mesh portions 2b at a pitch P (mm) is equipped sealedly along an axial direction of a slim tubular air-tight container 1 comprising an ultraviolet ray transmitting material and having an inside diameter of DLI (mm), excimer generating gas is sealed inside the air-tight container 1, an external electrode 3 is arranged in an outer face of the container 1, and DLI.P satisfys following expression: 90DLI.P150. A difference DOI-DLO between an outside diameter DLO (mm) of the air-tight container 1 and an inside diameter DOI (mm) of an outer tube OT may satisfy following expression: 2DOI-DLO8, instead of satisfying the expression hereinbefore.;COPYRIGHT: (C)2002,JPO