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:
Aug. 01, 2000
Filed:
Aug. 25, 1998
Kazutoshi Usui, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A motion compensation device to compensate for motion of an optical system causing image blur. The motion compensation device includes a motion detection unit to detect motion causing image blur, a motion compensation lens which is driven to correct image blur and a motion detection signal correction unit to correct a motion detection signal output by the motion detection unit. The motion detection signal correction unit includes a position bias table to correct a target position signal which drives the motion compensation lens to a target position, and a speed bias table to correct the drive speed of the motion compensation lens. The position bias table causes the motion compensation lens to be driven at the center of its range of movement to prevent a sense of physical disorder during panning or during a composition change. Moreover, the speed bias table causes the motion compensation lens to be driven to a center of its range of movement a predetermined time after introduction of a power supply to correct the drive speed of the motion compensation lens to obtain an image with little distortion.