Patent ID: 8406950

Claim:
An optoelectronic sensor ( 10 ), for a vehicle ( 100 ) which moves on a path ( 104 ) bordered at both sides, said optoelectronic sensor having a light receiver ( 24 ) for the conversion of received light ( 20 ) into electric signals as well as an evaluation unit ( 30 , 34 ) which is configured to determine the position of objects in a monitored zone of the sensor ( 10 ) from the electric signals and to recognize whether an unauthorized object is located within a protected field ( 102 ) dynamically changing in at least one of position and extent, wherein a safety output ( 32 ) is provided via which a stop signal or a brake signal can be output to the vehicle ( 100 ) by the evaluation unit ( 30 , 34 ) on the recognition of a protected field intrusion, characterized in that the evaluation unit ( 30 , 34 ) is furthermore configured to recognize borders ( 110 ) of the path ( 104 ) from the electric signals and to fit the protected field ( 102 ) dynamically into the borders ( 110 ) wherein the evaluation unit ( 30 , 34 ) is configured to output the stop signal or brake signal when no protected field ( 102 ) of the required dimensions can be fitted into the borders ( 110 ).