Image process apparatus with hologram lenses arranged in a conce

Details Image process apparatus with hologram lenses arranged in a conce Image process apparatus with hologram lenses arranged in a conce

1991-05-31

1994-05-03

Fuller, Benjamin R.

Facsimile and static presentation processing

Facsimile

Recording apparatus

359 17, 359 26, 346108, H04N 123, G01D 942

Patent

active

053092449

ABSTRACT:
An image processing apparatus is provided to have a spatial light modulator onto and from which an image data is written and read, a digital reading system for digitally reading an image data written on the spatial light modulator, a processing unit for processing the read image data, and a digital writing system for digitally writing the processed data on the spatial light modulator. The digital reading or writing system serves to two-dimensionally move a laser beam on the spatial light modulator for reading or writing an image data from or onto the spatial light modulator. The digital reading or writing system provides a hologram disk having hologram lenses located in a concentric or spiral manner. The hologram disk is arranged to deflect the laser beam vertically and horizontally for scanning the spatial modulating element.

REFERENCES:
patent: 3922059 (1975-11-01), Noguchi
patent: 4150396 (1979-04-01), Hareng et al.
patent: 4831452 (1989-05-01), Takanashi et al.
patent: 5128693 (1992-07-01), Tatemichi et al.

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