Anti-vibration device for an optical imaging system having improved drive force
Patent 5845157 Issued on December 1, 1998. Estimated Expiration Date: 
October 23, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 23, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesApparatus for stabilizing an image focused by a photographic lens onto a photosensitive surface Image stabilization apparatus Structure for stabilizing image in optical system Apparatus for driving blur correcting lens in camera Patent #: 5305040 InventorsAssigneeApplicationNo. 735746 filed on 10/23/1996US Classes:396/55, Having stabilization system348/208.11, Optics, lens shifting359/813Lens movable in its planeExaminersPrimary: Blankenship, Howard B.International ClassG03B 005/00Foreign Application Priority Data1993-07-12 JPAbstractAn anti-vibration device for an optical imaging system which cancels or mitigates forces arising when the anti-vibration device is driven in a first or second direction. The anti-vibration device is held in a lens frame which is driven in a first or second direction by a drive force generating device. The drive generating device includes first and second motors, the force of which is transmitted to the lens frame via respective transmission gear trains and drive shafts which move a movable member and thus move the lens frame. The position of action of the force on the lens frame due to the respective shafts is set to a position which divides the lens frame in a specified ratio, and the positions of action of the respective shafts are close to each other. | |
