Apparatus and method for producing an enlargement of a graphic i

Details Apparatus and method for producing an enlargement of a graphic i Apparatus and method for producing an enlargement of a graphic i

1979-01-15

1980-09-02

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

355 63, 355 72, 355 74, G03B 2752

Patent

active

042204100

ABSTRACT:
An apparatus for producing an enlargement of a graphic image having a light tight housing with an opening on one side of the housing which cooperates with a light tight door to provide access to a central area of the housing, a platen adapted to receive a graphic image to be enlarged at the bottom of the housing, at least one set of parallel space lens support slots fixed to the housing and positioned one slot on each side of the hollowed out area and located a preselected distance from the platen, at least one set of parallel space slots fixed to the housing and positioned one slot on each side of the housing at the upper end of the housing with the parallel space and support slots and the platen located thereunder, a planar lens support having a fixed focal length lens adapted to be slidably inserted into and supported by at least one set of lens supports to position the lens between the platen and the base support slots, a planar matt support of a selected dimension positioning a sensitized sheet material which is responsive to actinic radiation with the sensitized surface adjacent the lens to receive an enlarged developable graphic image on the sensitized surface is shown.

REFERENCES:
patent: 450475 (1891-04-01), Quartley
patent: 1527883 (1925-02-01), Lare et al.
patent: 1994091 (1935-03-01), Schwartz
patent: 2484048 (1949-10-01), Powers et al.
patent: 3322029 (1967-05-01), Palmquist et al.
patent: 3540807 (1970-11-01), Minikes

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