| 摘要 |
The invention relates to a light curtain for detecting objects within a monitored region. The light curtain comprises an arrangement of transmitters that emit light rays, an arrangement of receivers for receiving the light rays, and an evaluation unit. Object detection signals are generated in the evaluation unit in dependence on the receiving signals present at the outputs of the receivers. The light curtain is divided into sub-regions containing a specified number of transmitters and receivers. The individual sub-regions can be adjusted individually through separate parameter settings. A separate evaluation is realized in the evaluation unit for the individual sub-regions.
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