The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 1988
Filed:
Feb. 03, 1983
Waldemar Rentschler, Wildbad, DE;
Prontor-Werk, Alfred Gauthier GmbH, Wildbad Im Schwarzwald, DE;
Abstract
A camera, such as a single lens reflex camera, having a focal plane shutter and an interchangeable lens incorporating a diaphragm system, and provided with a control system for taking photographs using an electronic flash, in which the diaphragm system may be operated as an opening and closing shutter system as well as for providing the working aperture upon moving the focal plane shutter to fully open position to expose the film window, such that when the focal plane shutter release button is actuated, the focal plane shutter is moved to fully open position, and under the influence of the control system, the opening and closing system opens the aperture to a preselected width for a brief interval, e.g. 1/125 sec. or shorter, and the ignition of the flash is synchronized with the achievement of the preselected aperture, whereby to take a flash photograph during such brief interval and while the focal plane shutter remains throughout in fully open position, and a method for taking a flash photograph using a camera of the foregoing type.