Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takashi Enomoto0
Date of Patent
July 31, 2007
0Patent Application Number
111879690
Date Filed
July 25, 2005
0Patent Primary Examiner
Patent abstract
A zoom lens system includes a negative first lens group, a diaphragm, and a positive second lens group, in this order from the object. Zooming is performed by moving the negative first lens group and the positive second lens group along an optical axis of the zoom lens system. The negative first lens group includes a negative first lens element, a negative second lens element, and a positive third lens element, in this order from the object.
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