Real-Time Programmable Optical Correlator.
Patent, Filed 22 Oct 85, patented 22 Sep 87,
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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A real-time programmable joint transform optical correlator incorporating a magneto-optic spatial light modulator and a liquid crystal light valve therein. Object functions to be correlated are input into the magneto-optic spatial light modulator by a programmable microcomputer as input signals. Real time correlation takes place at the liquid crystal light valve with a coherent read out beam. Cross correlation between the input functions signals are obtained through the inverse Fourier transform of the read out coherent illumination and are subsequently output from the correlator.
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