ULTRAVIOLET GENERATING DEVICE AND LIGHTING DEVICE USING THE SAME
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United States of America Patent
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Issued Date -
Feb 3, 2011
app pub date -
Apr 1, 2009
filing date -
Apr 2, 2008
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Abandoned
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Abstract
Device generating high-luminance and highly-efficient ultraviolet rays by applying polyphase alternating current discharge plasma in a multi-poled magnetic field to a light source for generating ultraviolet rays and using a usual molecular gas other than mercury and rare gases. The inside of a flat container 3 is evacuated, and 1 Torr or less of a molecular gas for use in discharge light emission fills therein or is flowed thereinto. Next, a phase-controlled twelve-output alternating current power supply of 1 kW or lower is connected to twelve divisional electrodes 1 for supply of discharge electric energy. Thus, plasma P occurs with stable alternating-current glow discharge along the surface of the divisional electrodes 1 covered with a barrier layer 2. As a result of discharge, light with a wavelength unique to the molecular gas that contains ultraviolet rays is emitted and extracted outside from a light extraction window 32.
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