| 摘要 |
An optoelectronic sensor includes a clip of plates connected with possibility of motion, photo-receiver and light filter placed in frame under light-protection case, and light-emitting diodes, at that in the opening of the upper plate there is frame in which in sequence diverging lens, light filters, liquid crystal indicator, convergent lens and photo-receiver are placed, and the micro-controller connected to the liquid-crystal indicator is placed under the light-protection case in the upper plate of the clip, and light-emitting diodes placed on the lower side of the upper plate round the opening and directed to the light-reflecting surface of the lower plate of the clip in front of the opening of the upper plate. |
