Motion detectors and occupancy sensors with improved sensitivity, angular resolution and range
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United States of America Patent
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-
Feb 10, 2004
Grant Date -
N/A
app pub date -
Jul 18, 2001
filing date -
Oct 30, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for improving the sensitivity, angular resolution and range of motion detectors, occupancy sensors and similar systems include an improved infrared input section which employs at least one additional lens, possibly segmented, before a lens array. This pre-focusing lens collects and at least partially focuses incident infrared radiation onto at least one element of the lens array. The lens array focuses the radiation onto a detector.
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Family
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Cited Art Landscape
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