| 摘要 |
PURPOSE: A bidirectional sensor for motion detection is provided to reduce energy and improve lifetime of lighting by using an LED bulb. CONSTITUTION: A sensor unit(120) includes a front sensor(121) and a back sensor(122). An LED bulb(130) emits by an electrical signal transmitted from a PCB substrate(140). The PCB substrate is connected to the sensor unit and the LED bulb. The PCB substrate delivers a detected signal from the sensor unit to a control unit(150). |
