Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Taro Asami0
Date of Patent
July 19, 2011
0Patent Application Number
120534100
Date Filed
March 21, 2008
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens group having a positive power as a whole; a second lens group including a lens in the most object side thereof, the lens having a concave surface on the object side thereof; a third lens group including a cemented lens of a lens having a positive power and a lens having a negative power; and a fourth lens group having a negative power as a whole.
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