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:
Jan. 11, 2011
Filed:
Oct. 12, 2006
Kanji Tsuji, Tokyo, JP;
Kanji Tsuji, Tokyo, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
A lens barrel capable of being reduced in length in a collapsed position. Barrier members have an opening/closing operation plane that openably/closably covers the front face of an image-taking lens. A barrier drive mechanism causes the barrier members to perform opening/closing operation. A lens holding member has a holding portion that holds the image-taking lens and a guide portion that guides the image-taking lens in the optical axis direction. A lens drive mechanism causes the lens holding member to move forward or backward in the optical axis direction. A stroke area of the guide portion of the lens holding member is set to overlap the opening/closing operation plane of the barrier members in the optical axis direction.