| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electrodeless discharge lamp lighting device, along with a luminaire, capable of suppressing generation of spike current. <P>SOLUTION: In a dimming operation wherein a lighting-up period T on for enlarging output power to an induction coil at a level of lighting up an electrodeless discharge lamp and a lighting-out period T off for lessening the output power to the induction coil at a level of lighting out the electrodeless discharge lamp are periodically and alternately repeated at sufficiently-high frequency at a level of not recognizing blinking with human eyes, switching timing from the lighting-up period T on to the lighting-out period T off is set up to be a zero-crossed point of output voltage to the induction coil. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
