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:
Oct. 02, 2007
Filed:
Mar. 11, 2003
Michael Haubmann, Vienna, AT;
Michael Haubmann, Vienna, AT;
Arnold & Richter Cine Technik GmbH & Co. Betriebs KG, Munich, DE;
Abstract
The invention relates to a method and a device for detecting the opening angle of the shutter (light or dark sector) of an adjustable rotating shutter () arranged in a film camera. Said shutter comprises a circular-segment-shaped or circular-sector shaped shutter wing () which is driven by a shutter motor via a shutter shaft (), and also comprises an adjustable shutter adjustment wing () arranged in a coaxial manner in relation to the shutter wing () and which can be displaced in relation to said shutter wing by means of a shutter adjustment wing motor (). According to the invention, the position of the shutter wing () and the position of the shutter adjustment wing () are detected during a rotation of the rotating shutter () and the difference between the two positions forms a value for the shutter opening angle or the light or dark sector of the rotating shutter ().