Image shake correcting device, lens barrel, optical apparatus, and image pickup apparatus
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United States of America Patent
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Jun 16, 2015
Grant Date -
Jan 8, 2015
app pub date -
Jun 17, 2014
filing date -
Jul 4, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An image shake correcting device includes a movable unit for holding a correction lens, a rotation preventing plate that rotatably supports the movable unit about a first rotation axis orthogonal to the optical axis, and a fixed base plate that rotatably supports the rotation preventing plate about a second rotation axis orthogonal to the optical axis. The first rotation axis and the second rotation axis intersect at point O on the optical axis of the correction lens. An urging spring urges in a direction where both the movable unit and the fixed base plate are brought closer to each other. A first rolling ball is located on a first hypothetical spherical surface formed between the movable unit and the rotation preventing plate, and a second rolling ball is located on a second hypothetical spherical surface formed between the rotation preventing plate and the fixed base plate.
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