Apparatus for processing developed photographic films prior to copying

US4080061A · kind A · utility

Assignee

• AGFA-Gervaert AG · DE

Inventors

• Werner von Stein · Seevetal, DE
• Wolfgang Zahn
• Walter Knapp · Boulder, US

Key dates

• Filing date: Oct 5, 1976
• Grant date: Mar 21, 1978
• Expiry date: Oct 5, 1996

Classification

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

Abstract

Groups of several successive film frames of an exposed and developed photographic film are examined seriatim at an inspecting station which is located ahead of an encoding station or immediately ahead of the copying station in a photographic copying machine. An attendant examines the frames of a group at the inspecting station and actuates one or more buttons on a control panel in order to produce signals which are indicative of necessary adjustment of exposure controls for copying of certain frames. The buttons are actuated subsequent to depression of selected connecting knobs which form a row along the group of frames at the inspecting station and whose mutual spacing is less than the length of a frame; this insures that at least one knob is in register with each frame of a group at the inspecting station. The depression of a knob insures that the buttons on the control panel can transmit signals to the corresponding stage of a shift register. The stored signals are advanced through successive stages of the shift register, and the last stage transmits the signals to the encoding mechanism at the encoding station or directly to the exposure controls of the copying machine, always …