| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting control system that can be enhanced in degree of freedom for light control while suppressing the voltage drop of a light-controlled signal which is caused by the length of a wire.SOLUTION: A lighting control system has one to plural lighting devices 1, a power line 6 for supplying AC voltage/AC current, and a controller 2 for generating and outputting a light control signal for instructing the light control level. The lighting control system has a conversion device 4 for converting a light control signal to a light control signal having a high voltage without varying the light control level of the light control signal, and a signal line 5 for transmitting the light control signal having the high voltage to the lighting devices 1. The lighting device 1 has a light source 11, a converter 13 for converting a light control signal having a high voltage to a light control signal, and a turn-on circuit unit 12 for turning on the light source 11 by using AC voltage/AC current from the AC power source. The turn-on circuit 12 is configured to turn on the light source 11 for light control according to the light control level of the light control signal.SELECTED DRAWING: Figure 1 |
