Electronic imaging apparatus having means for reducing inter-pixel transmission nonuniformity
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United States of America Patent
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Mar 29, 1983
Grant Date -
N/A
app pub date -
Jan 29, 1981
filing date -
Jan 29, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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