ULTRAVIOLET GENERATION DEVICE AND LIGHTING DEVICE USING SAME

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High-intensity and high-efficient ultraviolet light is generated by applying polyphase alternating current discharge plasma in a multipole magnetic field to a light source for generating ultraviolet light and using mercury and general molecular gas other than rare gas. The interior of a planar container (3) is evacuated, and 1 Torr or less of molecular gas used for discharge light emission is filled or poured thereinto. A 12-phase alternating current power supply of 1 kw or less is connected to 12 split electrodes (1) and discharge electric energy is supplied thereto. Thus, plasma (P) by stable alternating-current glow discharge is generated along the surface of the split electrodes (1) covered with a barrier layer (2). As a result of discharge, light with a wavelength unique to molecular gas which contains ultraviolet light is emitted and extracted outward from a light extraction window (32).