Imaging device, method of controlling imaging device, and storage medium for reducing adverse effects from driving wiper
AssigneeCanon Kabushiki Kaisha
InventorAkihiko Nishide
Life of this patent
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Abstract
In order to reduce a driving frequency of a wiper configured to wipe a surface of an optical member on a front surface of a photographing lens, an imaging device includes: a lens; an optical member provided on a front surface side of the lens; a wiper configured to wipe a surface of the optical member, and at least one processor or circuit which functions as a detection unit configured to detect at least one of a focal length of the lens, an aperture value, and a subject size; and a control unit configured to drive the wiper so that a driving frequency of the wiper is reduced as the focal length becomes longer, the aperture value becomes smaller, or the subject size becomes larger.
Claims10
An imaging device, comprising:
- a lens;
- an optical member provided on a front surface side of the lens;
- a wiper configured to wipe a surface of the optical member;
- and
- at least one processor or circuit which functions as
- a detection unit configured to detect a focal length of the lens;
- and
- a control unit configured to drive the wiper so that a driving frequency of the wiper is reduced as the focal length becomes longer so that influence of materials adhering to the optical member is reduced in a captured image.
A method of controlling an imaging device which includes:
- a lens;
- an optical member provided on a front surface side of the lens;
- and
- a wiper configured to wipe a surface of the optical member by:
- detecting a focal length of the lens;
- and
- driving the wiper so that a driving frequency of the wiper is reduced as the focal length becomes longer so that influence of materials adhering to the optical member is reduced in a captured image.
A non-transitory computer-readable storage medium which stores a computer program configured to control an imaging device which includes:
- a lens;
- an optical member provided on a front surface side of the lens;
- and
- a wiper configured to wipe a surface of the optical member,
- wherein the computer program comprises instructions for executing the following processes:
- detecting a focal length of the lens;
- and
- driving the wiper so that a driving frequency of the wiper is reduced as the focal length becomes longer so that influence of materials adhering to the optical member is reduced in a captured image.
An imaging device, comprising:
- a lens;
- an optical member provided on a front surface side of the lens;
- a wiper configured to wipe a surface of the optical member;
- and
- at least one processor or circuit which functions as
- a detection unit configured to detect a focal length of the lens;
- and
- a control unit configured to drive the wiper so that a driving speed of the wiper is reduced as the focal length becomes longer so that influence of materials adhering to the optical member is reduced in a captured image.
Dependencies are inferred from the claim text.