Zoom lens and image pickup apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11921268
APP PUB NO 20220260815A1
SERIAL NO

17574108

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Abstract

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A zoom lens includes, in order from an object side to an image side, a lens unit closest to the object side and having a positive refractive power, an intermediate unit including at least three lens units and an aperture stop, and a lens unit closest to the image side and having a positive refractive power. A distance between each pair of adjacent lens units changes in zooming. The lens unit closest to the object side is configured not to move for zooming, and the at least three lens units and the aperture stop are configured to move in zooming. The lens unit closest to the image side includes a first positive lens. A predetermined condition is satisfied.

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First Claim

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shimomura, Kazuya Saitama, JP 35 347
Yuki, Akihiko Saitama, JP 12 29

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