| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lighting system capable of lighting an illumination load part according to surrounding illumination intensity variation. SOLUTION: When a lighting signal of a remote control transmitter is inputted to a luminaire control part 11 through a signal receiving part 12, the luminaire control part 11 reads in the surrounding illumination intensity detected with an illumination intensity sensor 13 and limits lighting holding time of a lighting holding timer 19a. At that time, if the surrounding illumination intensity is darker than the threshold value, the luminaire control part 11 lights the illumination load part 16 until the time limiting operation of the lighting holding timer 19a is completed. If the surrounding illumination intensity is brighter than the threshold value, the luminaire control part 11 does not light the illumination load part 16, and during the time limiting operation of the lighting holding timer 19a, successively reads in the surrounding illumination intensity detected with the illumination intensity sensor 13, and when the surrounding illumination intensity is made darker than the threshold value, lights the illumination load part 16 until the time limiting operation of the lighting holding timer 19a is completed.</p> |
