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:
Jul. 07, 1998
Filed:
Jan. 22, 1997
Tamotsu Koiwai, Akiruno, JP;
Mitsuhiro Sato, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A lens barrel with a cam mechanism, manufactured by molding plastic, comprising a plurality of cams having a plurality of parting lines, for lens driving, and a plurality of cam followers that are engaged with the plurality of cam faces of the respective cams. The plurality of parting lines are arranged on the plurality of cam followers in a manner that the positions of the parting lines relative to the respective cam followers are set to be different from each other. In the driving of lenses, no two cam followers are simultaneously positioned at their respective parting lines so that the lenses may be free from the effect of a step at each parting line. Thus, the deviation of the position of each lens is minimized.