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:
Apr. 07, 2009
Filed:
Jan. 26, 2005
Tohru Kawai, Kanagawa-ken, JP;
Masanori Ishikawa, Saitama-ken, JP;
Seiichi Kashiwaba, Tochigi-ken, JP;
Mitsuru Shinohara, Yamanashi-ken, JP;
Shigeki Sato, Tochigi-ken, JP;
Yuki Nagao, Tochigi-ken, JP;
Tohru Kawai, Kanagawa-ken, JP;
Masanori Ishikawa, Saitama-ken, JP;
Seiichi Kashiwaba, Tochigi-ken, JP;
Mitsuru Shinohara, Yamanashi-ken, JP;
Shigeki Sato, Tochigi-ken, JP;
Yuki Nagao, Tochigi-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided are a lens apparatus and an optical apparatus having the same, the lens apparatus including a lens holding member holding a lens, a supporting member for supporting the lens holding member movably in the direction of the optical axis of the lens, a first drive mechanism for moving the supporting member in the direction of the optical axis, and a second drive mechanism for moving the lens holding member in the direction of the optical axis, wherein a focusing lens can be moved to an in-focus position within a short time and highly accurately by an AF system.