| 摘要 |
<p>PURPOSE: To control optimal illumination according to a position of a human body by an illumination control system. CONSTITUTION: In a lighting system where detecting parts 5a and 5b are provided to detect a human body in a prescribed detecting area, and the sizes of detecting areas A and B of the respective detecting parts 5a and 5b are different from each other, and these detecting areas A and B are set to overlap in an almost coaxial shape, and two-stage light dimming is performed by discriminating the distance from a body by the number of detecting parts detecting the body an illumination control system is constituted. Therefore, optimal illumination according to a position of the human body can be controlled, and energy- saving and reduction in construction work can be attained.</p> |
