Off-axis joint tranform correlator
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United States of America Patent
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-
Jul 22, 1997
Grant Date -
N/A
app pub date -
Oct 4, 1996
filing date -
Oct 4, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The off-axis joint transform correlator improves on the extant on-axis jo transform correlator by eliminating the requirement for a second laser frequency and the means for blocking the first laser frequency from propagating beyond a given point in the correlator. These eliminations are accomplished by using a beamsplitter and a mirror to bring a second portion of the first frequency at an angle to read the pattern information written onto a spatial light modulator by the first portion.
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