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:
Aug. 08, 2006
Filed:
Apr. 20, 2004
Hiroshi Nomura, Saitama, JP;
Yoshihiro Yamazaki, Saitama, JP;
Isao Okuda, Saitama, JP;
Satoru Nakamura, Tokyo, JP;
Hiroshi Nomura, Saitama, JP;
Yoshihiro Yamazaki, Saitama, JP;
Isao Okuda, Saitama, JP;
Satoru Nakamura, Tokyo, JP;
PENTAX Corporation, Tokyo, JP;
Abstract
A lens barrel includes a guide barrel, an outer ring, an inner ring, a cam ring and a movable lens frame, arranged in that order from outermost side, wherein the axes thereof coincide with a common optical axis, the outer ring being guided linearly in the optical axis direction by the stationary barrel, the inner ring being linearly guided in the optical axis direction by the outer ring, and the cam ring being rotatable to move the movable lens frame in the optical axis direction; and a lens barrier mechanism having an aperture positioned in front of the movable lens frame, the lens barrier mechanism being provided on a front opening of the inner ring, for opening and closing the aperture.