Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 30, 2007
0Patent Application Number
105340770
Date Filed
October 31, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In a zoom lens (30) comprising, from the object side to the image side, a front lens group (12) and a controllable lens group (24), the controllable lens group comprises two lens elements (25, 26) having different dispersions and being movable with respect to each other so as to perform a focusing action. One of the lens elements corrects for the dispersion of the zoom lens. Preferably, the zoom lens comprises at least one folding mirror.
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