Electronic imaging apparatus having means for reducing inter-pix

Details Electronic imaging apparatus having means for reducing inter-pix Electronic imaging apparatus having means for reducing inter-pix

1981-01-29

1983-03-29

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358296, 358 78, H04N 146, H04N 122

Patent

active

043785670

ABSTRACT:
Electronic light valve of the kind having an imaging zone, an imagewise addressable light valve array, and means for directing illumination to the imaging zone via the array, operably associated with such apparatus, for reducing inter-pixel variation in light transmitted to the imaging zone. One disclosed embodiment includes a photo-bleachable mask having pixel portions corresponding to pixels of the light valve array, which have been photo-bleached and fixed at density levels compensating for such nonuniformities. Another embodiment includes a pixel mask comprising negative working photographic emulsion which has been exposed and developed to different compensating density levels.

REFERENCES:
patent: 3428743 (1969-02-01), Hanlon
patent: 3470310 (1969-09-01), Shashoua
patent: 3930119 (1975-12-01), Schmidt
patent: 4129357 (1978-12-01), Frosch
patent: 4229095 (1980-10-01), Mir
patent: 4294524 (1981-10-01), Stolov
patent: 4316196 (1982-02-01), Jacobs

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