| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lighting system, which can obtain the optimal illuminance at need without waste, by controlling a lighting device so as to be lighted at the predetermined illuminance in response to the environment at each time on the basis of the information of a human body detecting sensor and an illuminance detecting means. SOLUTION: In this lighting system, the signal for controlling the lighting condition is given from a control unit 3 to a lighting device 4 on the basis of the information of a human body detecting means 1 and an illuminance detecting means 2. When the existence of a human body is detected by the human body detecting means 1, a lighting device 4 is faded-in to the high illuminance condition, and during this fade-in condition, real illuminance is detected by the illuminance detecting means 2, and when the necessary illuminance is detected by the illuminance detecting means 2, the lighting device 4 is controlled so as to conclude the fade-in.</p> |
