| 摘要 |
PURPOSE: A motion sensing switch is provided to improve accuracy of recognition position of a reflector, by preventing direct sensing of a light emitted from a light emitting device. CONSTITUTION: A photo detector (20) is mounted in a frame (10), and light emitting devices (30) are separated around the photo detector in the frame and emit a light upward. A blocking cover (50) is arranged in the upper part of the frame, and covers a part adjacent to the photo detector among the upper part of the light emitting device. The light emitted from the light emitting device is blocked by the blocking cover, and is emitted to the opposite direction to the arrangement direction of the photo detector. The blocking cover comprises a light transmitting part (51) which transmits the light reflected from the reflector in the upper part of the photo detector. The photo detector senses the light reflected by the reflector through the light-transmitting part. |
