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. 27, 2003
Filed:
Mar. 04, 2002
Tamotsu Koiwai, Akiruno, JP;
Ai Midorikawa, Saitama, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A lens barrel includes a zoom frame for holding a first-group frame and a second-group frame. Three follower pins are implanted in the second-group frame, and each of the follower pins includes a flange portion and a thrust abutment portion. The flange portions are interposed between the outer periphery of the second-group frame and the inner periphery of the zoom frame, so that decentering of the optical axis of the second-group frame is adjusted by the difference of the thicknesses of the flange portions. The thrust abutment portions abut on the rear end surface of insertion grooves of the zoom frame, so that inclination of the optical axis of the second-group frame is adjusted by the difference of the outside diameters of the thrust abutment portions. The position and the inclination of the optical axis of lenses can be easily adjusted by selecting and mounting the follower pins.