| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power supply device and a luminaire which bring a stable lighting condition to a semiconductor light emitting device. <P>SOLUTION: Light emitting diodes 26 to 29 are lit at a predetermined quantity of light (e.g., a minimum quantity of light) for only a predetermined time T immediately after the power supply is turned on, and after the lapse of the predetermined time T, the light emitting diodes 26 to 29 are lit at the quantity of light indicated by a light modulation signal. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
