Electro-optical character generator for photocomposing apparatus
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United States of America Patent
Stats
-
Jul 21, 1981
Grant Date -
N/A
app pub date -
Mar 18, 1980
filing date -
Mar 21, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A character generator for use in photocomposing comprises a fibre optic faceplate (23) of which the front face is polished and bevelled at its leading and trailing edges. On the rear surface of the faceplate is a mask which has an array of apertures each aperture encompassing a multiplicity of the fibres. Photoemissive diodes or other illuminators (25) are approximately aligned with the holes in the mask and are disposed for connection to terminals 22 on a printed circuit mounting. The generator is intended for use in the constitution of characters by selective illumination of elementary areas. The faceplate is intended to be in close proximity to a film or other radiation sensitive recording medium which is moved relative to the faceplate to build up lines of composition.
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