Control apparatus, lens apparatus, optical apparatus, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorFUYA MIZUOCHI
Life of this patent
Estimating the term…
Abstract
A control apparatus for use with an optical apparatus includes an acquiring unit configured to acquire focus information from the optical apparatus, and a control unit configured to control, according to the focus information, movements of a first focus lens and an element that are independently movable in an optical axis direction. The control unit performs first driving that moves the element so as to reduce an image-plane moving amount caused by a movement of the first focus lens in simultaneously moving the first focus lens and the element.
Claims19
A control apparatus for use with an optical apparatus, the control apparatus comprising at least one processor, and a memory coupled to the at least one processor, the memory having instructions that, when executed by the processor, perform operations as:
- an acquiring unit configured to acquire focus information from the optical apparatus;
- and
- a control unit configured to control, according to the focus information, movements of a first focus lens and an element that are independently movable in an optical axis direction,
- wherein the control unit performs first driving that moves the element so as to reduce an image-plane moving amount caused by a movement of the first focus lens in simultaneously moving the first focus lens and the element.
A lens apparatus included in a camera system that includes an image pickup apparatus and the lens apparatus attachable to and detachable from the image pickup apparatus, the lens apparatus comprising:
- a control apparatus that includes:
- an acquiring unit configured to acquire focus information from at least one of the image pickup apparatus and the lens apparatus;
- and
- a control unit configured to control, according to the focus information, movements of a first focus lens and an element that are independently movable in an optical axis direction;
- and
- an optical system including the first focus lens,
- wherein the control unit performs first driving that moves the element so as to reduce an image-plane moving amount caused by a movement of the first focus lens in simultaneously moving the first focus lens and the element.
A control method for an optical apparatus, the control method comprising:
- acquiring focus information from the optical apparatus;
- and
- controlling, according to the focus information, movements of a first focus lens and an element that are independently movable in an optical axis direction,
- wherein the controlling performs first driving that moves the element so as to reduce an image-plane moving amount caused by a movement of the first focus lens in simultaneously moving the first focus lens and the element.
Dependencies are inferred from the claim text.