Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 11, 2008
Patent Application Number
11732426
Date Filed
April 2, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A zoom lens system comprises, in order from an object side, a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a positive refractive power; a fourth lens unit having a negative refractive power; and a fifth lens unit having a positive refractive power, and during magnification change from a wide-angle end to a telephoto end, each of the space between the respective lens units changes.
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