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Patent Searching and Data


Title:
LENS DEVICE AND CAMERA
Document Type and Number:
Japanese Patent JP2009175398
Kind Code:
A
Abstract:

To set a focusing lens in the optimal reference position in response to a zoom lens position.

This lens device/camera is provided with: a zoom lens driving means for driving a zoom lens, a focusing lens driving means for driving the focusing lens; a zoom lens position detecting means for detecting the zoom lens position; a storage means for storing a data of a reference position of the focusing lens with respect to the zoom lens position;a shift amount detecting means for detecting a shift amount D from a target position of the zoom lens, when the zoom lens is driven up to the target position by the zoom lens driving means; a correction amount determining means for determining a correction amount L from the reference position in response to the shift amount D detected by the shift amount detecting means, referring to the data of the storage means; and a correction means for driving the focusing lens by the correction amount L determined by the correction amount determining means, by the focusing lens driving means.


Inventors:
Yoshioka, Genshi
Application Number:
JP2008000013451
Publication Date:
August 06, 2009
Filing Date:
January 24, 2008
Export Citation:
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Assignee:
NIKON CORP
International Classes:
G02B7/08