Photographic copier

US4390270A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Ernst Biedermann · Regensburg, DE
• Gunter Findeis · Sauerlach, DE
• Klaus Weber · North Canberra, AU
• Wolfgang Zahn

Key dates

• Filing date: Jul 28, 1981
• Grant date: Jun 28, 1983
• Expiry date: Jul 28, 2001

Classification

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

Abstract

A copier has a movable housing which accommodates a support for an original to be copied, a source of illumination for the original, a lens system for forming an image of the original and a support for photosensitive material which is to receive the image. The housing has an opening in one of its sides and carries a hinged lid for lighttight sealing of the opening. A reflector is pivotally mounted inside the housing in the vicinity of the opening and can be moved between an operative position in which it intercepts the image from the lens system and an inoperative position in which it does not. When an image of normal size is required, the reflector is in its inoperative position and the image is projected onto the photosensitive material located inside the housing. When an image of large size is required, the reflector is brought into its operative position and the opening in the housing is uncovered. The reflector can then project the image through the opening and onto a large sheet of photosensitive material held on a wall or other suitable support.