Zoom lens and image pickup apparatus equipped with same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8873158
APP PUB NO 20120162776A1
SERIAL NO

13335052

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Abstract

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A zoom lens includes, in order from its object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. At a time of zooming from the wide angle end to the telephoto end, the lens units move in such a way that the distance between the first lens unit and the second lens unit decreases and the distance between the second lens unit and the third lens unit increases. The zoom lens satisfies the conditions “0.35<|f1|/ft<0.55” and “1.80

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nanba, Norihiro Utsunomiya, JP 64 1129

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