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.:

US 7911721 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 22, 2011

Filed:

Oct. 13, 2008
Applicant:

Kazuyuki Iwasa, Hachioji, JP;

Inventor:

Kazuyuki Iwasa, Hachioji, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention includes: a taking lens including a lens group; a distance ring that is operated to rotate around the taking lens; an LD roller capable of rotating in conjunction with the rotational operation of the distance ring; a transducer that is in contact with the LD roller and capable of moving around the taking lens relative to the LD roller; and a rotatable frame member that is capable of moving around the taking lens within a predetermined angle range and supports the transducer, upon the distance ring being rotated manually, the rotatable frame member being rotated via the LD roller and the transducer, and upon the transducer being driven by a drive signal, the transducer moving relative to the LD roller, thereby the rotatable frame member being rotated around the taking lens to move a focusing lens in the taking lens to move in an optical axis direction.


Find Patent Forward Citations

Iwasa, Kazuyuki. (2011). Lens barrel (U.S. Patent No. 7911721). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7911721

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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