Image pickup lens, image pickup apparatus, and control method of the image pickup apparatus

US9152018B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9152018-B2
Application numberUS-201113014461-A
CountryUS
Kind codeB2
Filing dateJan 26, 2011
Priority dateFeb 5, 2010
Publication dateOct 6, 2015
Grant dateOct 6, 2015

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  2. Abstract

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Abstract

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An image pickup lens includes an optical system that includes a magnification variable lens used for a magnification variation, and a focus lens configured to adjust an in-focus state, a wide attachment lens being configured to change an enlargement ratio of the image pickup lens and attachable to the optical system, and a manipulator manipulated so as to instruct driving of the magnification variable lens. A moving amount of the magnification variable lens per a predetermined manipulated amount of the manipulator when the wide attachment lens is attached is smaller than that when the wide attachment lens is not attached.

First claim

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What is claimed is: 1. An image pickup lens comprising: an optical system that includes a magnification variable lens used for a magnification variation, and a focus lens configured to adjust an in-focus state, wherein the optical system is capable of attaching a wide attachment lens being configured to change an enlargement ratio of the optical system; and a manipulator manipulated so as to instruct driving of the magnification variable lens, wherein a range capable of drivin…

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What does patent US9152018B2 cover?
An image pickup lens includes an optical system that includes a magnification variable lens used for a magnification variation, and a focus lens configured to adjust an in-focus state, a wide attachment lens being configured to change an enlargement ratio of the image pickup lens and attachable to the optical system, and a manipulator manipulated so as to instruct driving of the magnification v…
Who is the assignee on this patent?
Ishikawa Daisuke, Canon Kk
What technology area does this patent fall under?
Primary CPC classification G03B17/12. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Oct 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).