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:
Apr. 16, 1996
Filed:
Oct. 03, 1994
Kurt Bednarsky, Vienna, AT;
Pavel Filous, Guntramsdorf, AT;
Eugen Bayerl, Kirchheim, DE;
Karl Herzog, Taufkirchen, DE;
Arnold & Richter Cine Technik GmbH & Co., Munich, DE;
Abstract
The invention relates to a drive unit for the adjustment of the zoom, focus or iris ring of a camera lens. According to the invention, the drive unit comprises a drive shaft arranged parallel to the axis of the camera lens, a pin and groove arrangement for allowing axial displacement of the drive shaft, a pinion connected to the drive shaft and coupled to the external teeth of a lens ring of the camera lens, and two circular flanges connected to the drive shaft and for embracing a sector of the lens ring to pull along the drive shaft and the pinion as the lens ring moves axially. The invention creates a drive unit which allows adjustment of a lens ring even if the lens ring is displaced axially.