Zoom lens and image pickup apparatus equipped with the same

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United States of America Patent

PATENT NO 8878982
SERIAL NO

13903894

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A zoom lens includes, in order from an object side to an image side, a positive first lens unit, a negative second lens unit, an aperture stop, a positive third lens unit, and a positive fourth lens unit. The third lens unit includes, in that order, a positive first lens sub-unit, and a negative second lens sub-unit. The second lens sub-unit is movable in a direction having a component perpendicular to an optical axis to change an image forming position in a direction perpendicular to the optical axis. A distance on the optical axis between the aperture stop and the third lens unit at a wide-angle end, a composite focal length of the first lens unit and the second lens unit at the wide-angle end, a focal length of the first lens sub-unit, and a focal length of the second lens sub-unit are appropriately set.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abe, Hirofumi Utsunomiya, JP 41 535
Miyazawa, Nobuyuki Utsunomiya, JP 31 180

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