| 摘要 |
<p>PURPOSE:To provide an automatic illumination control device for a residence, which can prevent wasteful consumption of the power due to continuance 7of half lit state without giving inconvenience. CONSTITUTION:An automatic illumination control device for a residence is equipped with a human body sensor A, an illuminance sensor B to emit an output when the ambient illuminance becomes below the set illuminance value, and a dimming device 10 which puts an illumination lamp or lamps in the dimmed state when fed with the output of the illuminance sensor and which turns the lamp(s) into the full lit condition when the human body sensor gives a human body sensing signal under the condition that the illuminance sensor is emitting an output. The arrangement is also equipped with a mode switch 12, and when it is turned on, feed of the illuminance sensor output to the dimmer device is shut off.</p> |
