| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an illumination control device in which respective illumination systems are controlled according to an established target illumination intensity without arranging numerous illumination intensity sensors, and which is arranged so that no unnatural impression is given due to light and shade of the respective illumination fixtures on the ceiling face even when the illumination intensity on a floor face or desktop face is held constant. <P>SOLUTION: The device is equipped with the main illumination system 1 composed of one or more illumination fixtures, the illumination intensity sensor 7 that detects illumination intensity in an illumination region by the main illumination system, an illumination intensity configuring means by which a target illumination intensity of the illumination region is configured, the main dimming means in which a dimming level of the main illumination system is controlled according to the target illumination intensity and the illumination intensity detected by the illumination intensity sensor, subsidiary illumination systems 2, 3 composed of one or more illumination fixtures, and a subsidiary dimming means 4a in which weighting on the dimming level of the main illumination system is configured depending on the target illumination intensity, the dimming level of the main illumination system, and the illumination intensity detected by the illumination intensity sensor, and by this weighting, the dimming level of the subsidiary illumination system is controlled. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
