System and method for projecting multiple images directly onto p

Details System and method for projecting multiple images directly onto p System and method for projecting multiple images directly onto p

1983-09-10

1987-02-10

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

G03B 2772

Patent

active

046419586

ABSTRACT:
A method and system for direct-to-printing plate multiple imaging. Supported on an overhead beam are a lamp house, a subject holder and adjacent condenser lens system, and an objective lens. The lamp house emits a highly intense, uniformly diverging beam of light which is narrow-banded to avoid excessive heat. The condenser lens system gathers the light and directs it through a film negative or positive on the subject holder. The objective lens focuses the film image on a metal printing plate which is held on a platen and coated with a photosensitive emulsion having an exposure time in the range of seconds rather than minutes.

REFERENCES:
patent: 3157087 (1964-11-01), Kallenberg
patent: 3639054 (1972-02-01), Wally, Jr.
patent: 3998546 (1976-12-01), Wally, Jr. et al.
patent: 4215935 (1980-08-01), Loebach

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