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:
Feb. 17, 2009
Filed:
Jul. 19, 2007
Nobuyuki Nagai, Tokyo, JP;
Hiroshi Nomura, Saitama, JP;
Kazunori Ishizuka, Kanagawa, JP;
Toshiharu Suzuki, Saitama, JP;
Nobuyuki Nagai, Tokyo, JP;
Hiroshi Nomura, Saitama, JP;
Kazunori Ishizuka, Kanagawa, JP;
Toshiharu Suzuki, Saitama, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A lens system having at least one front movable lens group and a rear movable lens group which are movable in an optical axis direction. The lens system includes a position detector for determining whether the rear movable lens group is positioned in a predetermined normal moving range thereof; and a lens control device which stops the front movable lens group and moves the rear movable lens group rearward into the predetermined normal moving range if the rear movable lens group is in an abnormal moving range thereof in front of the normal moving range during a forward movement of the front movable lens group from a predetermined initial position thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile