Exposure device

G - Physics – 03 – B

Patent

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Details

G03B 27/00 (2006.01) G03B 27/60 (2006.01)

Patent

CA 2124997

An exposure device for sucking photosensitive materials of different widths on an exposure table. A suction belt, driven by a motor, is formed with a plurality of suction holes uniformly. On the back of the suction belt is mounted a suction box with a belt support plate which is formed with a plurality of suction holes. A pair of adjusting plates are attached to the belt support plate on its back. By adjusting the position of the adjusting plates in a width direction, the suction holes in the outermost rows at both sides are opened and closed. Thus, the suction width for the suction belt can be adjusted according to the width of the photosensitive material.

Dispositif d'exposition pour aspirer des matériaux photosensibles de différentes largeurs sur une table d'exposition. Une courroie d'aspiration, entraînée par un moteur, est formée uniformément de nombreux orifices d'aspiration. Une caisse d'aspiration est montée à l'arrière de la courroie d'aspiration avec une plaque de support de courroie formée de nombreux orifices d'aspiration. Deux plaques de réglage sont fixées à l'arrière de la plaque de support de courroie. En réglant la position des plaques de réglage dans le sens de la largeur, les orifices d'aspiration, situés dans les rangées les plus à l'extérieur sur les deux côtés, sont ouverts et fermés. On peut ainsi régler la largeur d'aspiration de la courroie selon la largeur du matériau photosensible.

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