| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wall switch for receiving a control signal for lighting an illuminaire transmitted, via a wireless signal from the outside and supply an alternating power to the illuminaire. SOLUTION: A remote control transmitter transmits a control signal to an illuminaire 2 for turning on/off the illuminaire via a wireless signal consisting of optical signals such as infrared-ray light. At this time, at a wall switch 1, a light-receiving element 13a receives a control signal transmitted from the remote control transmitter, and a CPU 17 turns on a transistor T1 , based on a control signal received by the light receiving element 13a. When the transistor T1 is turned on, a current flows a set coil S of a relay RY, a relay contact ry is turned on, and an alternating power AC is supplied to the illuminaire 2.</p> |
