Autofocus lens apparatus and camera system with the same
AssigneeCanon Kabushiki Kaisha
InventorGou Shibasaki
Life of this patent
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Abstract
An autofocus lens apparatus is disclosed which is capable of changing a focus target area in position and size without degrading the operability of manual focusing when taking images with an autofocus function. The autofocus lens apparatus comprises an operating member which is placed outside a lens barrel and movable to change the focus target area, a detector which detects the movement of the operating member, and a controller which changes at least one of the position and size of the focus target area on the basis of a signal from the detector.
Claims17
An autofocus lens apparatus which includes a focusing optical member movable in a lens barrel of the lens apparatus and automatically drives the focusing optical member on the basis of an image signal of a focus target area in an image-taking region to control the focusing optical member to an in-focus state, the autofocus lens apparatus comprising:
- an operating member which is placed outside the lens barrel and movable in a direction orthogonal to an optical axis of the lens barrel;
- a detector which detects the movement of the operating member;
- and
- a controller which moves the focus target area in a direction of the movement of the operating member on the basis of a signal from the detector.
An autofocus lens apparatus which includes a focusing optical member movable in a lens barrel of the lens apparatus and automatically drives the focusing optical member on the basis of an image signal of a focus target area in an image-taking region to control the focusing optical member to an in-focus state, the autofocus lens apparatus comprising:
- an operating member which is placed outside the lens barrel and is rotatable around an optical axis of the lens barrel;
- a detector which detects the rotation of the operating member;
- and
- a controller which changes the size of the focus target area on the basis of a signal from the detector.
Dependencies are inferred from the claim text.