Scan device for half-tone transparency originals

Details Scan device for half-tone transparency originals Scan device for half-tone transparency originals

H - Electricity

04

N

178/3, 88/96

H04N 1/00 (2006.01) H04N 1/028 (2006.01)

Patent

CA 1254842

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.

518611

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