Device for determining size depending on position of object, has radiation source provided for producing light, reflector arranged on object for reflecting produced light and detector provided for detecting reflected light

摘要

The device (1) has a radiation source (4) provided for producing a light (8) and a reflector (6) arranged on objects (2,13) for reflecting a produced light. A detector is provided for detecting a reflected light. A control device is provided for controlling a radiation source. The reflector is irradiated by the light of the radiation source. A differential image producing unit is provided for producing a difference image. Independent claims are included for the following: (1) a reflector for determining a size depending on the position of an object with a detection and determination unit; (2) a method for determining a size depending on the position of an object; and (3) a computer program for determining a size depending on the position of an object.