Copier for photographic originals having different sizes

US4647190A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Wilhelm Nitsch · Munich, DE
• Gerhard Benker · Pullach, DE

Key dates

• Filing date: Oct 30, 1984
• Grant date: Mar 3, 1987
• Expiry date: Oct 30, 2004

Classification

• Technology area (CPC G): Physics
• CPC primary: G03B27/462
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A copier is designed to copy negatives of different sizes onto copying material of different widths. The negatives and copying material are supplied from rolls. The copier includes the following manually controlled components: (i) a set of interchangeable film guides which are used at a scanning station and are slotted to permit photoelectric scanning of the negatives; (ii) a set of interchangeable masks for masking the negatives during copying; (iii) a set of light shafts for illuminating the negatives during copying; and (iv) a movable guide unit for the copying material. A computer associated with the copier is arranged to receive signals indicative of the following manually obtained settings: (a) the type of dimensions of the particular film guide installed in the copier; (b) the type of dimensions of the particular film mask installed in the copier; (c) the type of light shaft installed in the copier or the cross-sectional area of the outlet aperture for the light beam; and (d) the position of the guide unit for the copying material which is related to the width of the latter. The copier further includes a motorized mask for regulating the length of copying material to be expo…