Position sensor, conveying device with position sensor, and method for utilizing position sensor for position correction

The invention provides an improved position sensor, a conveying device with the position sensor, and a method for utilizing the position sensor for position correction. The position sensor comprises at least two light emitters, a light receiver array and a pedestal, the pedestal includes a central plane and at least two inclined surfaces which incline towards the center in opposite edge positions, the at least two emitter are arranged on the at least two inclined surfaces respectively, and the light receiver array is arranged in the central plane of the pedestal.