Actuator driver, imaging device using the same, and imaging method
AssigneeRohm Co., Ltd.
InventorsJun MAEDE, Akihito SAITO, Yoshihiro SEKIMOTO
Life of this patent
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Abstract
An imaging device includes an imaging lens, an imaging element that captures an image transmitted through the imaging lens, a blur detection part configured to detect a blur, an actuator configured to determine a position of the imaging lens, and an actuator driver configured to control the actuator in accordance with a blur detection signal from the blur detection part. The shift of the image occurring when forcibly changing the position of the imaging lens is corrected by shift of an effective pixel area of the imaging element according to the forcible change amount of the position of the imaging lens.
Claims17
An imaging device comprising:
- an imaging lens;
- an imaging element that captures an image transmitted through the imaging lens;
- a blur detection part configured to detect a blur;
- an actuator configured to determine a position of the imaging lens;
- and
- an actuator driver configured to control the actuator in accordance with a blur detection signal from the blur detection part,
- wherein a shift of the image occurring when forcibly changing the position of the imaging lens is corrected by shift of an effective pixel area of the imaging element according to a forcible change amount of the position of the imaging lens.
An actuator driver that drives an actuator for determining a position of an imaging lens for correcting an image blur,
- wherein a DC component of the position of the imaging lens is forcibly changed based on position information of the imaging lens, and, in case of forcibly changing the DC component, a forcible change amount of the position of the imaging lens or an amount of shift of an effective pixel area based on the forcible change amount as information for shift of the effective pixel area is output.
An imaging method comprising:
- capturing, by an imaging element, an image passed through an imaging lens;
- displacing the imaging lens according to a blur;
- forcibly changing a position of the imaging lens;
- storing position information of the imaging lens immediately before changing the position of the imaging lens;
- calculating a difference between the position information of the imaging lens after the changing and the stored position information;
- and
- shifting an effective pixel area of the imaging element according to the difference.
Dependencies are inferred from the claim text.