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:
Jun. 09, 1981
Filed:
Nov. 26, 1979
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
In a lens barrel for automatic and manual focus control of a camera, a non-movable barrel is adapted to be mounted on the camera and a first movable barrel is movably carried by the non-movable barrel with a second movable barrel movably carried by the first movable barrel and a third movable barrel movably carried by the second movable barrel for carrying at least one lens group for focussing by means of axial movement of the lens group. The third movable barrel is guided for movement without rotation relative to the non-movable barrel and the second movable barrel is shifted along the optical axis of the lens group relative to the non-movable barrel. The third movable barrel is shifted along the optical axis relative to the non-movable barrel with either the shifting of the second movable barrel or the shifting of the third movable barrel being for automatic focus control operation and the other being for manual focus control operation.