Arrangement for optical image processing

Details Arrangement for optical image processing Arrangement for optical image processing

1987-05-20

1988-11-22

LaRoche, Eugene R.

350359, 350360, 35016212, 350266, 350272, G02B 2742, G02B 2602, G02F 103, G02F 100

Patent

active

047861495

ABSTRACT:
For electro-optical image conversion as well as for optical image processing by spatial filtering, a two-dimensional optical filter is provided which comprises a microstructured grid, the openings of which are designed as a matrix of windows, the windows being provided with electrostatically movable thin-film closures. The window openings are controlled by electrostatic charges which are provided by an electron beam. This matrix of light valves can preferably be used as a electro-optical converter as well as a Fourier filter in an optical computer.

REFERENCES:
patent: 3886310 (1975-05-01), Guldberg et al.
patent: 3905019 (1975-09-01), Aoki et al.
patent: 3977771 (1976-08-01), Horner
patent: 4182623 (1980-01-01), Haines
patent: 4235522 (1980-11-01), Simpson et al.
patent: 4351589 (1982-09-01), Chavel et al.
patent: 4698602 (1987-10-01), Armitage
Zweig, "Two-Dimensional Laser Deflection Using Fourier Optics" Short Communication, IBM Journal, vol. 9, No. 4, 7-1965.
Stark et al., "Linear Spatial Filtering with Crossed Ultrasonic Light Modulators" Proceeding of the IEEE, vol. 57, No. 8, Aug. 1969.

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