| 摘要 |
An ozone generating apparatus having high reliability in which a glass tube can prevent from being damaged by melting a power feeding brush even if a large amount of short-circuit current flows. In an ozone generating apparatus using silent discharge, an alternating high voltage power is supplied from a power supply to a metal film formed in an inner wall of a glass tube by a power feeding brush comprising a brush shaft made of metal and a large number of metal thin wires fixed to the periphery of the brush shaft, the following equation satisfies. (D2/D1)≧(1+(1/20 &bgr;)), wherein ‘D1’ indicates an outer diameter of a bundle of metal thin wires, ‘D2’ indicates an outer diameter of the brush shaft and ‘&bgr;’ indicates the line density of metal thin wires on a surface of the brush shaft.
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