| 摘要 |
<p>An ion generation device is provided with a discharge electrode, an induction electrode for generating ions between the discharge electrode and the induction electrode, and a voltage application circuit for applying alternating-current voltage to the discharge electrode. The effective value/peak voltage value of the alternating-current voltage is 0.7 or less, and the rise time and fall time of a voltage waveform are each 30 musec or more.</p> |
