Half-tone imaging system

Details Half-tone imaging system Half-tone imaging system

1977-01-12

1980-10-14

Braun, Fred L.

Photocopying

Including fiber optics

355 4, 355 71, G03G 1500

Patent

active

042277957

ABSTRACT:
An optical system in which a movable photosensitive member is exposed to a light image of an original document. The optical system includes a light source which illuminates a screen having at least two adjacent spaced rows of opaque dots. Movement of the photosensitive member controls activation of the light source. The light source is activated periodically and responds to the photosensitive member moving a distance corresponding to the distance between adjacent rows of opaque dots on the screen.

REFERENCES:
patent: 3763758 (1973-10-01), Manack et al.
patent: 3936173 (1976-02-01), Kidd et al.
patent: 3967893 (1976-07-01), Majewicz
patent: 4007981 (1977-02-01), Goren
patent: 4012137 (1977-03-01), Goren

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