| 摘要 |
An energy-saving, high-outputting and high-efficiency, electric discharging type of illumination apparatus and associated units are provided. "N" thin divisional electrode pieces are arranged at relatively narrow intervals "a" on the electrode-application area 1, which is defined on the bottom of a flat container, and the divisional electrode pieces are fixed to the electrode-application area 1 with an intervening sheet of good electrically insulating and thermally conductive material laid therebetween. A front glass 4 having fluorescence coating on its inside is placed to confront the electrode-application area 1. The electrode-application area 1 is close to a double-walled structure "c", in which cooling water "d" is circulated for cooling the divisional electrode pieces 2. On the outside of the double-walled structure "c", "n+1" rod magnets 5 are arranged to be in alignment with the electrode-to-electrode space "a", alternating N pole and S pole. "N" power supplies 10 of low frequency are connected to the "n" divisional electrodes 2 so that these divisional electrodes may be supplied with voltages of the same amplitude, each shifted 1/n period out of phase. The "n" power supplies 10 are connected in the form of star, and are connected to a controller 11 for controlling the frequency, amplitude and phase (including wave shape) of the voltage wave. The power supply uses an insulation transformer to float the voltages appearing at the output terminals. Thus, an electric discharge appears exclusively among divisional electrodes 2. <IMAGE> |
