Lens driving device, autofocus camera, and camera-equipped mobile terminal
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United States of America Patent
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Aug 27, 2013
Grant Date -
Feb 17, 2011
app pub date -
Aug 12, 2010
filing date -
Aug 17, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A lens driving device, an autofocus camera and a camera-equipped mobile terminal are provided that can correct movement of a lens in an optical axis direction and tilt of an optical axis, and reduce the dimension thereof in the optical axis direction. The device includes: a lens support 5 for supporting a lens at an inner circumference; a plurality of coils 19a to 19d disposed at regular intervals in a circumferential direction on an outer periphery of the lens support 5; a base 8 that supports the lens support 5 so as to move freely in an optical axis direction of the lens; and a magnet portion 17 provided on the base 8 and facing each of the coils 19a to 19d, in which an electric current of equal current value is applied to each of the coils 19a to 19d when moving the lens support 5 in the optical axis direction, and current values of the electric current applied to predetermined coils 19a to 19d are varied when correcting tilt of the optical axis of the lens.
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