Three-dimensional imaging device
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United States of America Patent
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Issued Date -
Oct 12, 2006
app pub date -
Apr 6, 2005
filing date -
Apr 6, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A laser radar capable of measuring range to a target at many simultaneous points and with variable resolution is disclosed. Unlike conventional range sensors the device does not require short optical pulses or high electronics bandwidths to function. The disclosed invention uses frequency-modulated CW (FMCW) lasers, coherent detection, and low bandwidth video cameras to simultaneously measure range to a large number of points. The invention further permits varying the range resolution, range depth coverage, and eliminating Doppler induced range ambiguities by varying the frequency modulation parameters.
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