Compound-eye crime prevention sensor system
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United States of America Patent
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Oct 31, 2000
Grant Date -
N/A
app pub date -
Sep 24, 1998
filing date -
Jan 30, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A compound-eye crime prevention sensor system is constructed which reliably distinguishes between a human being and a small animal irrespective of the distance from the detector. This system has a zone spacing changer, and when the detection zones A and B of the detector 1 are at the farthest point L in the trespassing subject detecting range, the spacing between the detection zones A and B is .theta.L and when the optical unit in the detector 1 is rotated to bring the detection zones to the position of a point S, the spacing .theta.S between the detection zones A and B is greater than the spacing .theta.L which results from adjusting the detection zones to the farthest point L.
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