Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 24, 2007
Patent Application Number
11427100
Date Filed
June 28, 2006
Patent Primary Examiner
Patent abstract
A wide-angle zoom lens system includes a negative first lens group, a positive second lens group, a negative third lens group and a positive fourth lens group), in this order from the object.
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