| 摘要 |
The invention is an optical sensor for detecting a signal emitted by a light source, for use in a placement detection system, the optical sensor comprising a line-sensor having a detection line comprising a pixel line (20) consisting of pixels (21), and an optical imaging means (17) imaging the light of the light source onto a light strip being cross-directional to the detection line of the line-sensor, the optical imaging means (17) being arranged with a distance from the line-sensor, the light strip having strip-boundary transitions on each of its two edges in the direction of the detection line. The inventive optical sensor is characterized in that the detection line comprises a pixel line (20), in which there are gaps between the adjacent pixels (21), and the optical sensor has a detection range ensuring that at least one of the strip- boundary transitions always falls at least in part onto a pixel (21). |
