LIGHT CURTAIN
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United States of America Patent
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Issued Date -
Aug 22, 2013
app pub date -
Feb 21, 2013
filing date -
Feb 21, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
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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