ELECTRODELESS DISCHARGE LAMP, ELECTRODELESS DISCHARGE LAMP DEVICE, ELECTRODELESS DISCHARGE LAMP LIGHTING DEVICE, ULTRAVIOLET RAY IRRADIATION DEVICE, AND FLUID TREATING DEVICE

摘要

PROBLEM TO BE SOLVED: To effectively radiate ultraviolet rays from an electrodeless discharge lamp. ;SOLUTION: A housing 2 of a discharge lamp 1 is constituted with an inner wall part 2a and an outer wall part 2b concentrically formed as the inner wall part 2a, the upper end surface between the inner wall part 2a and the outer wall part 2b is closed, each lower end surface is connected in a recessed shape, and an exciting coil 9 is arranged within the inner wall part 2a. A discharge lamp device constituted like this is immersed in a treating bath 3, contact of the fluid 6 in the treating bath 3 with the exciting coil 9 is prevented, and the ultraviolet ray radiation efficiency of the discharge lamp 1 is enhanced.;COPYRIGHT: (C)1998,JPO