Robot cell safety system
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United States of America Patent
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-
Feb 14, 1989
Issued Date -
N/A
app pub date -
Sep 29, 1986
filing date -
May 2, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Arrangements for detecting the presence of an opaque object in an area, such as a person in a robotic work cell. Multiple light sources, light reflecting surfaces, light boxes with hole patterns or fiber optic light sources are spaced around the perimeter of the area and imaged by a camera. The change of the camera signal from its normal condition is used to interrupt power to safeguard personnel and/or machinery.
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Family
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