Attachment optical system, image capturing optical system, and image capturing apparatus

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United States of America Patent

PATENT NO 10288855
APP PUB NO 20180003929A1
SERIAL NO

15634311

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Abstract

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An attachment optical system detachably attached to an image capturing optical system, includes a first lens provided with a first aspherical surface including a plurality of concave portions and convex portions that are formed in a rotation direction with respect to an optical system, and a second lens provided with a second aspherical surface including a plurality of concave portions and convex portions that are formed in a rotation direction with respect to the optical axis, and a distance between the first aspherical surface and the second aspherical surface in an optical axis direction changes by relatively rotating the first lens and the second lens around the optical axis.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoki, Koji Saitama, JP 96 1071

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