Imaging device and imaging method
AssigneeRicoh Company, Ltd.
InventorKei Itoh
Life of this patent
Estimating the term…
Abstract
An imaging device includes an imaging lens which obtains an optical image of a subject, an imaging element which receives from a subject light passing through the imaging lens, a focus position determination unit which determines a focus position of the imaging lens according to image data obtained from the imaging element and a lens movement unit which moves the imaging lens, the focus position determination unit including an AF operation start position determination unit configured to calculate an AF evaluation value according to the image data, and determine an AF operation start position according to the AF evaluation value when the lens movement unit drives the imaging lens to a predetermined operation start position.
Claims12
An imaging device, comprising:
- an imaging lens which obtains an optical image of a subject;
- an imaging element which receives from a subject light passing through the imaging lens;
- a focus position determination unit which determines a focus position of the imaging lens according to image data obtained from the imaging element;
- and
- a lens movement unit which moves the imaging lens;
- the focus position determination unit including an AF operation start position determination unit configured to calculate an AF evaluation value according to the image data, and determine an AF operation start position according to the AF evaluation value when the lens movement unit drives the imaging lens to a predetermined operation start position.
An imaging method, comprising:
- an imaging step which receives an optical image of a subject and images the optical image of the subject;
- a focus position determination step which determines a focus position of an imaging lens according to image data obtained in the imaging step;
- and
- a movement step which moves the imaging lens;
- the focus position determination step including an AF operation start position determination step which calculates an AF evaluation value based on the image data and determines the AF operation start position based on the AF evaluation value when the lens movement step drives the imaging lens to a predetermined operation start position.
Dependencies are inferred from the claim text.