Devices for the copying of images by sequential sweeping

Facsimile and static presentation processing – Facsimile – Recording apparatus

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Details

358297, H04N 106, H04N 124

Patent

active

040014959

ABSTRACT:
An optical assembly for a stencil making device employed for scanning an original document to provide a light image of indicia thereon to a photomultiplier tube which converts the light image into electrical signals includes a housing taking the form of a block having at least one aperture or channel therein for receiving a lamp. A second channel extends at right angles from the first channel toward a predetermined wall of the block. The last-mentioned channel opens at the wall so that light from the lamp passes outwardly of the second channel onto the original document positioned adjacent the wall. A third channel extends into the block adjacent the second channel. A lens in the last-mentioned channel focuses reflected light images of the indicia through the third channel to the end of an optical fiber which carries the image to the photomultiplier tube. The dimension of the cross-sectional end of the optical fiber determines the scan area.

REFERENCES:
patent: 2712611 (1955-07-01), Nyman
patent: 2864886 (1958-12-01), Lemmon
patent: 3006992 (1961-10-01), Nakagawa et al.
patent: 3214596 (1965-10-01), Schwedt, Jr. et a.
patent: 3341710 (1967-09-01), Cade
patent: 3466451 (1969-09-01), Hanchett, Jr.
patent: 3561846 (1971-02-01), Kingsland
patent: 3684889 (1972-08-01), Priessnetz et al.

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