Zoom lens and image pickup device including the same

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United States of America Patent

PATENT NO 9726866
SERIAL NO

14205766

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Abstract

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A zoom lens includes a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power, and a fourth lens unit having positive refractive power, in order from an object side to an image side. During zooming, the first lens unit is not moved, and the second lens unit, the third lens unit, and the fourth lens unit are moved to change an interval between adjacent lens units. A moving amount m2 of the second lens unit during zooming from a wide angle end to a telephoto end, a focal length f2 of the second lens unit, and a focal length fw of a whole system at the wide angle end are each set appropriately.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

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

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