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US 2018/0007274 A1Published application
Lens apparatus and image capturing apparatus for performing image stabilization
AssigneeCanon Kabushiki Kaisha
InventorShuichi MOGI
Life of this patent
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Abstract
A lens apparatus (101) includes an image capturing optical system including a correction unit (103) configured to move in image stabilization, and a driver (113) configured to rotationally drive the correction unit based on a rotational center position that varies depending on an object distance, and a predetermined conditional expression is satisfied.
Claims11
A lens apparatus comprising:
- an image capturing optical system including a correction unit configured to move in image stabilization;
- and
- a driver configured to rotationally drive the correction unit based on a rotational center position that varies depending on an object distance,
- wherein a conditional expression below is satisfied:
- |Rinf|/D−|Rn|/D>0.001,
- where Rinf is a distance in an optical axis direction from an intersection of a lens surface closest to an object side of the correction unit and an optical axis of the image capturing optical system to the rotational center position when focusing at infinity, Rn is a distance in the optical axis direction from the intersection of the lens surface closest to the object side of the correction unit and the optical axis to the rotational center position when focusing in a close range, and D is a thickness on the optical axis of the correction unit.
3 more elements
An image capturing apparatus comprising:
- a lens apparatus including an image capturing optical system including a correction unit configured to move in image stabilization and a driver configured to rotationally drive the correction unit based on a rotational center position that varies depending on an object distance;
- and
- an image sensor configured to photoelectrically convert an optical image formed via the lens apparatus,
- wherein a conditional expression below is satisfied:
- |Rinf|/D−|Rn|/D>0.001,
- where Rinf is a distance in an optical axis direction from an intersection of a lens surface closest to an object side of the correction unit and an optical axis of the image capturing optical system to the rotational center position when focusing at infinity, Rn is a distance in the optical axis direction from the intersection of the lens surface closest to the object side of the correction unit and the optical axis to the rotational center position when focusing in a close range, and D is a thickness on the optical axis of the correction unit.
3 more elements
Dependencies are inferred from the claim text.