US Patent 7277237 AF control apparatus for zoom lens system

Patent 7277237 was granted and assigned to Pentax on October, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Pentax

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

72772370

Date of Patent

October 2, 2007

Patent Application Number

111210140

Date Filed

May 4, 2005

Patent Primary Examiner

‌

Mohammed Hasan

Patent abstract

An AF control apparatus for a zoom lens system includes a movable lens group serving as a zooming lens group and a focusing lens group in the zoom lens system; a focusing table which stores focusing data for the movable lens group; a zooming table which stores zooming data for the movable lens group, the zooming table having different data from the focusing table; and a driving device for moving the movable lens group in an optical axis direction of the zoom lens system according to data stored in the focusing table and the zooming table.