| 摘要 |
<p>PURPOSE:To allow a floodlight device to make light receiving detection display and stable input light display while keeping two signal lines between the floodlight device and a main body section. CONSTITUTION:A main body section 1 and a floodlight device 2 are interconnected by signal lines 4, 5. The floodlight device 2 consists of a floodlighting LED 8, a light receiving detection display LED 9, a resistor 10, a stable input light display LED 11 and a transistor(TR) 12. The main body section 1 consists of a signal generating circuit 13 outputting a floodlight signal, a light receiving signal processing circuit 36 outputting a light receiving detection signal and a stable incoming light detection signal and a display drive circuit 38 or the like. When a light receiving detection signal is given to the flood light device 2 via the signal lines 4, 5, the light receiving detection display LED 9 is lighted and when a stable incident light detection signal is given to the device 2, the light receiving detection display LED 9 and the stable input light display LED 11 are both lighted.</p> |
