Photoelectric switch having a prism with a reflective surface being positioned by a release button
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United States of America Patent
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Jan 12, 2010
Grant Date -
Jul 24, 2008
app pub date -
Jan 19, 2007
filing date -
Jan 19, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A photoelectric switch is disclosed. An illustrative embodiment of the photoelectric switch includes at least one light source, a reflective surface provided in light-receiving relationship with respect to the at least one light source, a release button engaging the reflective surface and positional between first and second positions, a photocell provided in light-receiving relationship with respect to the reflective surface when the release button is disposed in the first position, a latch control circuit connected to the photocell and a latch connected to the latch control circuit. The light path incorporates a collimator to restrict operation of the system to the relationship of the light source and the retroreflector.
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