Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Koji Okajima0
Motoyuki Ohtake0
Mitsuhiro Suzaki0
Date of Patent
June 15, 2010
Patent Application Number
10594328
Date Filed
February 17, 2006
Patent Primary Examiner
Patent abstract
A zoom lens and imaging apparatus implementing four lens groups including a first lens group G1 having a positive refractive power, a second lens group G2 having a negative refractive power, a third lens group G3 having a positive refractive power, and a fourth lens group G4 having a positive refractive power. When a positional state is varied from a wide-angle-end state to a telephoto-end state, the second lens group is moved to an image side, and the fourth lens group is moved to compensate for image plane variation caused by the movement of the second lens group.
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