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. 13, 2008
Filed:
Aug. 08, 2005
Yoshihiro Yamazaki, Saitama, JP;
Yuji Kogure, Saitama, JP;
Yoshihiro Yamazaki, Saitama, JP;
Yuji Kogure, Saitama, JP;
PENTAX Corporation, Tokyo, JP;
Abstract
A light shielding structure of a zoom lens barrel includes an outer ring, an intermediate ring and an inner ring which are concentrically arranged, the intermediate ring being movable relative to the outer ring and including at least one through-slot, the inner ring being movable relative to the intermediate ring, and the inner ring including at least one projection which is formed on an outer peripheral surface of the inner ring to be engaged in the through-slot. The light shielding structure is in the form of a light shielding sheet including a fixing portion which is fixed to the inner ring, and at least one resilient light-shielding tongue which projects radially outwards from the fixing portion to pass through the through-slot so that a radially outer end portion of the resilient light-shielding tongue comes in contact with an inner peripheral surface of the outer ring.