Contrast enhancement of optical images with nonlinear media

Details Contrast enhancement of optical images with nonlinear media Contrast enhancement of optical images with nonlinear media

1985-11-27

1989-04-18

Corbin, John K.

350393, 350397, 350404, G02F 117

Patent

active

048221473

ABSTRACT:
A nonlinear, saturable absorptive medium is employed in conjunction with optical bistable devices to filter background light, serve as a frequency filter and/or amplify transmitted light while retaining the spatial intensity profile of an optical image.

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Fleisher et al., "Radiation Controlled Radiation Gate", IBM Tech. Disc. Bull., 8-1963, p. 73.

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