Imaging device, imaging device main body, and focusing control method of imaging device
AssigneeFUJIFILM Corporation
InventorTetsu Wada
Life of this patent
Estimating the term…
Abstract
Provided are an imaging device, an imaging device main body, and a focusing control method of an imaging device capable of appropriately supporting a photographer at the time of focusing. An image sensor movement driver that moves an image sensor along an optical axis is provided, and a subject is tracked by moving the image sensor within a movable range. A focusing operation detector that detects a focusing operation for the subject and a movable range switch that switches the movable range of the image sensor are provided. In a case where the focusing operation is detected by the focusing operation detector, the movable range switch widens the movable range of the image sensor.
Claims25
An imaging device comprising:
- an imaging lens that has a focus adjustment function;
- an image sensor;
- an image sensor movement driver that moves the image sensor along an optical axis;
- a focus detector that detects a defocus amount;
- a tracking controller that controls the movement of the image sensor within a movable range to track a subject based on the defocus amount detected by the focus detector;
- a focusing operation detector that detects a focusing operation of the imaging lens for the subject based on a change of the defocus amount detected by the focus detector;
- and
- a movable range switch that widens the movable range of the image sensor in a case where the focusing operation is detected by the focusing operation detector.
An imaging device main body comprising:
- a mount to and from which an imaging lens having a focus adjustment function is attachable and detachable;
- an image sensor;
- an image sensor movement driver that moves the image sensor along an optical axis;
- a focus detector that detects a defocus amount;
- a tracking controller that controls the movement of the image sensor within a movable range to track a subject based on the defocus amount detected by the focus detector;
- a focusing operation detector that detects a focusing operation of the imaging lens for the subject based on a change of the defocus amount detected by the focus detector;
- and
- a movable range switch that widens the movable range of the image sensor in a case where the focusing operation is detected by the focusing operation detector.
A focusing control method of an imaging device that includes an imaging lens which has a focus adjustment function, an image sensor, an image sensor movement driver which moves the image sensor along an optical axis, a focus detector which detects a defocus amount, and a tracking controller that controls the movement of the image sensor within a movable range to track a subject based on the defocus amount detected by the focus detector, the method comprising:
- a step of detecting a focusing operation of the imaging lens for the subject based on a change of the defocus amount detected by the focus detector;
- and
- a step of widening the movable range of the image sensor in a case where the focusing operation is detected.
Dependencies are inferred from the claim text.