| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device and a lighting method of a dielectric barrier discharge lamp, wherein uniform brightness can be obtained over the whole region of the length direction. SOLUTION: This lighting device is provided with an inverter (7) to supply an alternate current of a first frequency between internal electrodes (4, 5) and the outer electrode (6) of a light-emitting tube (1) and to make the light-emitting tube emit light, and with a power supply (9) to supply a power supply voltage of which the amplitude is changed by a second frequency to the inverter (7). The inverter (7) supplies the voltage, in which the alternate current voltage of the first frequency is amplitude modulated, by using the voltage of the second frequency from the power supply (9) between the inner electrodes (4, 5) and the outer electrode (6) of the light-emitting tube (1). COPYRIGHT: (C)2007,JPO&INPIT |
