Image stabilizer and adjustment method thereof, image stabilizing circuit, image stabilizing method, and camera module and position control method of optical component thereof
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United States of America Patent
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Nov 10, 2016
app pub date -
Dec 5, 2014
filing date -
Dec 11, 2013
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Abstract
The present invention relates to an image stabilizer and a camera module. The image stabilizer for a lens that moves, with respect to an imaging element, in an auto-focus direction and a camera shake direction, includes a first position sensor, a distance signal calculation unit, a target position signal calculation circuit and a drive signal generation unit. A first detection position signal that indicates a position of the lens that moves in the camera shake direction, a second detection position signal that indicates a position of the lens that moves in the auto-focus direction, and an angular velocity signal that indicate an angular velocity when the lens is inclined from the optical axis direction to output a drive signal. A drive unit moves the lens in the camera shake direction depending on the drive signal.
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