System and method for projecting multiple images directly...

Details System and method for projecting multiple images directly... System and method for projecting multiple images directly...

G - Physics

03

B

95/31

G03B 27/00 (2006.01) G03B 27/32 (2006.01)

Patent

CA 1229011

ABSTRACT A method and system for direct-to-printing plate multiple imaging. Supported on an overhead beam (10) are a lamp house (14), a subject holder (32) and adjacent condenser lens system (42), and an objective lens (48). The lamp house 14) emits a highly intense, uniformly diverging beam of light (30) which is narrow-banded to avoid excessive heat. The condenser lens system (42) gathers the light and directs it through a film negative or positive on the subject holder (32). The objective lens (48) focuses the film image on a metal printing plate (58) which is held on a platen (60) and coated with a photosensitive emulsion having an exposure time in the range of seconds rather than minutes.

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