Patent ID: 7671322

Claim:
An optoelectronic security system for object detection in a monitored zone comprising: a plurality of tight transmitters in a light grid arrangement for a transmission of light signals into a monitored zone; at least one spatially resolving light reception unit for a reception of the light signals transmitted by the light transmitters, wherein the at least one spatially resolving light reception unit includes a one dimensional or two-dimensional photodiode matrix with light-sensitive elements, in particular charge-coupled device (CCD) elements, arranged in matrix form; and a read-out circuit for reading out signals of the at least one light reception unit, characterized by an evaluation device which is configured to split a surface of the at least one light reception unit into at least two processing regions in dependence on a predetermined selection criterion and to further process the signals of the at least two processing regions differently, wherein the read-out circuit is connected to the individual light-sensitive elements of the photodiode matrix for the reading out of the signals of the light-sensitive elements.