Picture scanner with a scanning light position detector

Details Picture scanner with a scanning light position detector Picture scanner with a scanning light position detector

1977-11-25

1979-07-03

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358289, H04N 124

Patent

active

041602803

ABSTRACT:
A picture scanner using a light beam which has first passed through a mask plate to scan a picture fixed to a revolving cylinder is provided with a system for adjusting the transverse position of the light source, consisting of a mirror which can be pivoted into the path of the light beam, a screen on which an image of the light source and an image of the mask plate can be simultaneously projected, and means for focusing both these images into the same plane.

REFERENCES:
patent: 2158391 (1939-05-01), Wise
patent: 2295572 (1942-09-01), Finch
patent: 3397282 (1968-08-01), Iijima
patent: 3914546 (1975-10-01), Hamaker et al.
Oganov, Melnik- The Gazeta-2 Facsimile Set for Newspaper Transmission- Telecommun. Radio Engng., Pe. 1., vol. 25, #3, Mar., 1971.

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