Optical correlator using spatial light modulator

Details Optical correlator using spatial light modulator Optical correlator using spatial light modulator

1995-11-27

1998-03-03

Henry, Jon W.

Optical: systems and elements

Holographic system or element

For producing or reconstructing images from multiple holograms

359561, G02B 126

Patent

active

057241627

ABSTRACT:
An optical correlator is disclosed that compares signals of interest agai selected reference signals stored in holograms both of which are imaged onto a spatial light modulator comprising electron trapping material. The cooperative action of the light from the hologram and the light from a delayed line causes the spatial light modulator to produce signals that are proportional to the correspondence between the signals of interest and the reference signals.

REFERENCES:
patent: 3600594 (1971-08-01), Moore
patent: 4669054 (1987-05-01), Schlunt et al.
patent: 5040140 (1991-08-01), Horner
patent: 5307306 (1994-04-01), Tournois et al.

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