Device for reproducing images, by contact, on an unexposed photo

Details Device for reproducing images, by contact, on an unexposed photo Device for reproducing images, by contact, on an unexposed photo

1991-10-11

1992-09-01

Wintercorn, Richard A.

Photocopying

Contact printing

Fluid pressure retention of carrier and receiver in exposure...

G03B 2720

Patent

active

051443651

ABSTRACT:
The reproduction device according to the invention comprises a support (3) provided with a window (4), the original (2) being intended to block the window, while the film (1) is intended to be placed in front of the original, a frame (5) located in front of the support (3), on the side of the original and of the film, and provided with pressing means (6) opposite the portion of the film disposed in front of the original, the support and the frame being displaceable in relation to one another between an inactive position in which the pressing means do not exert any action on the film and the original, and an active position in which the pressing means first of all press the film against the original, and then the original against the support, means for creating a negative pressure between the original and the film when the support and the frame are in their active positions, and a light source located on the side of the support (3) that is opposite the frame for printing the film through the original.
It prevents air from being trapped between the film 1 and the original 2 and permits the reproduction of excellent quality images.

REFERENCES:
patent: 3280715 (1966-10-01), Corl et al.
patent: 3547537 (1970-12-01), Betron
patent: 3604800 (1971-09-01), Jordan et al.
patent: 3658417 (1972-04-01), Lewis et al.
patent: 3794419 (1974-02-01), Flor et al.
patent: 3834815 (1974-09-01), Grieg
patent: 4888488 (1989-12-01), Miyake

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