| 摘要 |
PURPOSE:To generate large power discharge stably by combining spare ionization of two kinds from a main discharge surface to a main discharge electrode and both side surfaces of the main discharge surface. CONSTITUTION:When a switching element 13 is closed and conducted, charged charges are applied to an anode 2 and a cathode 3, charges at high voltage are also applied to each pin-shaped electrode, spark discharge 20 is generated among gaps among the pin-shaped electrodes 6a, 6b, and capacitors 15a, 15b are charged through the gaps. When the voltage of the capacitors 15a, 15b reaches voltage between the anode 2 and the cathode 3, the phenomenon of spark discharge stops, but spare ionization is induced between the anode 2 and the cathode 3 by ultraviolet rays by the phenomenon, thus generating main discharge. Since charged charges for main discharge are also applied between a spare electrode 5 fitted to the cathode 3 and the cathode 3 at the same time as spark discharge, on the other hand, corona discharge is induced along a groove 4 notched on the cathode 3, and spare ionization is generated, thus generating main discharge between the anode 2 and the cathode 3. |
