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:
Sep. 23, 2003
Filed:
Feb. 12, 2003
Hiroshi Nomura, Saitama, JP;
Yoshihiro Yamazaki, Saitama, JP;
Isao Okuda, Saitama, JP;
Satoru Nakamura, Tokyo, JP;
Pentax Corporation, Tokyo, JP;
Abstract
Lens barrel has a lens supporting frame to which a frontmost lens group is fixed, a first moving frame to which the lens supporting frame is engaged, a second moving frame to which a rear lens group which is positioned behind the frontmost lens group is supported, and a support frame movement mechanism for moving the first and second moving frame between ready-to-photograph positions and accommodation positions behind the ready-to-photograph positions in an optical axis direction. The support frame movement mechanism makes the first moving frame and the second moving frame rotate about the optical axis relative to each other with the lens supporting frame and the second moving frame being in contact with each other when the first moving frame and the second moving frame are positioned in the vicinity of accommodation positions. One of the lens supporting frames includes a low-frictional portion provided on a contacting surface thereof.