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. 26, 2008
Filed:
May. 31, 2007
Tomohiro Yasui, Tokyo, JP;
Masanori Hayashi, Chiba, JP;
Yoshikazu Ito, Gifu, JP;
Hideki Yamaoka, Gifu, JP;
Kentaro Tashita, Gifu, JP;
Tomohiro Yasui, Tokyo, JP;
Masanori Hayashi, Chiba, JP;
Yoshikazu Ito, Gifu, JP;
Hideki Yamaoka, Gifu, JP;
Kentaro Tashita, Gifu, JP;
Sony Corporation, Tokyo, JP;
Abstract
A lens barrel has a base, a second lens holder frame holding a second lens group, a first lens holder frame holding a first lens group, a cam ring, and a fixed ring. The second lens holder frame has three guides projecting axially from an outer circumferential portion of an annular plate and disposed at circumferentially equally spaced intervals. Guide grooves are defined in respective portions of the annular plate which are radially inwardly faced by the guides. Guide posts engage respectively in the guide grooves, so that the second lens holder frame is nonrotatably, but axially movably supported by the guide posts.