Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
June 14, 2011
Patent Application Number
12697370
Date Filed
February 1, 2010
Patent Citations Received
Patent Primary Examiner
Patent abstract
A high zoom-ratio zoom lens system includes a positive first lens group, a negative second lens group, a positive third lens group, a negative fourth lens group, a positive fifth lens group, and a negative sixth lens group, in this order from an object.
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