Electro-optical character generator for photocomposing apparatus

Details Electro-optical character generator for photocomposing apparatus Electro-optical character generator for photocomposing apparatus

1980-03-18

1981-07-21

Adams, Russell E.

Photocopying

Contact printing

Light boxes

354 7, 354 4, 355 1, B41G 1300, G03B 1500, G03B 2700

Patent

active

042794838

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.

REFERENCES:
patent: 2951736 (1960-09-01), Black
patent: 3299434 (1967-01-01), McNaney
patent: 3832488 (1974-08-01), Fahey et al.
patent: 3952311 (1976-04-01), Lapeyre
patent: 3967289 (1976-06-01), Yevick
patent: 4057338 (1977-11-01), Yevick

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