Optoelectronic sensor for the detection of objects

An optoelectronic sensor (10) for the detection of objects in a monitored zone (20) having more than one scanning plane, which comprises a light transmitter (12) for the transmission of a light beam (16), a drive (28) for the generation of a rotational movement, a deflection unit (18, 62) rotatable about an axis of rotation (30) by means of the drive (28) for the periodic deflection of the light beam (16), a light receiver (26) for the generation of a received signal from the light beam (22) remitted or reflected from the monitored zone (20), and an evaluation unit (46) which is configured for the detection of the objects on the basis of the received signal, wherein the deflection unit (18, 62) can be tilted in order to vary the scanning plane,

• wherein the drive (28) tilts the deflection unit (18, 62) at the same time as the rotational movement,
• the optoelectronic sensor further comprising a compulsory guidance (40, 42, 50, 52) which determines a respective tilt angle in dependence on the rotational movement,
• wherein the compulsory guidance (40, 42, 50, 52, 54) has an engagement between a guide element (40, 50) connected to the deflection unit (18, 62) and a sectional track (40, 50, 54, 56) not following the rotational movement of the deflection unit (18) or has an engagement between a sectional track (40, 50, 54, 56) arranged at the deflection unit (18, 62) and a guide element (40, 50) not following the rotational movement.