Phase coding technique for one-way image transmission through an

Details Phase coding technique for one-way image transmission through an Phase coding technique for one-way image transmission through an

1994-10-04

1996-09-10

Callahan, Timothy P.

Optical: systems and elements

Diffraction

Using fourier transform spatial filtering

359 10, 359 16, G03H 108, G03H 116

Patent

active

055551289

ABSTRACT:
An object beam is passed through an aberrating medium to produce a diffraction distorted image therein, which is imaged upon a spatial light modulator. A probe beam measures the phase aberrated wavefront within the aberrating medium and is used to produce an interference pattern which is employed to produce phase encoding signals to be fed back to the spatial light modulator for compensating in part for the phase distortion of the phase aberrated wavefront. The result is an output image having a substantially reduced degree of distortion.

REFERENCES:
patent: 5028102 (1991-07-01), Ogura et al.
patent: 5111515 (1992-05-01), Javidi
patent: 5159474 (1992-10-01), Franke et al.
patent: 5258860 (1993-11-01), Schehrer et al.
patent: 5426521 (1995-06-01), Chen et al.

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