Scan device with light mixer and diffusing means for half-tone transparency originals
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United States of America Patent
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Apr 5, 1988
Grant Date -
N/A
app pub date -
Sep 18, 1986
filing date -
Sep 20, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for scanning a transparency image original wherein scattered light emerging from the original is guided through lens or diffraction gratings onto a diffusion screen attached to a light mixer. In the light mixer, the light is mixed by multiple reflection and, at a light exit of the mixer, is guided to a cross-sectional transducer formed of a plurality of optical fibers. These fibers conduct the light onto a photoelectric transducer. The apparatus works with high efficiency and reduces an image falsifying influence of the Callier effect to such a degree that it no longer has a disturbing appearance in reproduction.
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