Zoom lens and photographing apparatus having the same
AssigneeCanon Kabushiki Kaisha
InventorAkihiro Nishio
Life of this patent
Estimating the term…
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AssigneeCanon Kabushiki Kaisha
InventorAkihiro Nishio
Estimating the term…
A zoom lens includes a first lens unit with a positive refractive power, a second lens unit with a negative refractive power, a third lens unit with a positive refractive power, and a fourth lens unit with a positive refractive power, which are arranged in this order from an object side. At least the first, third and fourth lens units are moved along an optical axis to vary spatial distances of the lens units to thereby change magnification. The third lens unit includes a first lens subunit with a positive refractive power, and a second lens subunit with a negative refractive power, and the second lens subunit is moved to have at least a perpendicular vector component with respect to the optical axis to thereby displace an image.
A zoom lens comprising;
Dependencies are inferred from the claim text.