Patent ID: 7995206

Claim:
An apparatus for recognizing objects with a light source and a light receiver wherein the light source is a laser light source, the apparatus has an at least partly reflective wall and, between the laser light source and the wall, an interspace is provided, through which an object is moved or in which an object is placed, and a movable mirror device is arranged in the beam path between the laser light source and the wall in such a way that light emitted by the laser light source is directed onto the wall, wherein the movement of the mirror device is controlled in such a way that the wall can be irradiated with the light emitted by the laser light source, at least along a line, and light reflected from the wall is detected by the light receiver, characterized in that the wall is curved, further characterized in that the object is a ball, which is held on a softenable layer in a ring holder, below which a measurement region for registering the ball is provided at a distance of 25.0+0.4 mm.