Lens driving motor
AssigneeLG Innotek Co., Ltd.
InventorSang Ok PARK
Life of this patent
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Abstract
One embodiment provides a lens driving motor, comprising: a mover including a bobbin for fixing a lens, and magnets disposed on the bobbin; a stator comprising a first coil and a second coil arranged to correspond to the respective magnets, a housing including an upper surface with an open center and a support part having an outer surface on which the first coil is disposed, a base which supports the housing and has a through hole formed in the center thereof to correspond to the lens, and a substrate disposed on an upper surface of the base so as to apply power to the second coil; and a hall sensor disposed at a position facing the magnets so as to sense a phase of the mover.
Claims20
A lens driving motor, comprising:
- a base;
- a cover can disposed on the base and comprising an upper plate and a lateral plate extending from the upper plate;
- a bobbin disposed in the cover can;
- a housing disposed between the cover can and the bobbin;
- a magnet disposed in the cover can;
- a first coil disposed in the cover can and facing the magnet to perform a focusing operation;
- a second coil disposed on the base and facing the magnet to perform an optical image stabilization operation;
- and
- an upper spring coupled with an upper surface of the bobbin and an upper surface of the housing,
- wherein the upper spring comprises an inner part coupled with the upper surface of the bobbin, an outer part coupled with the upper surface of the housing, and a connecting part connecting the outer part and the inner part,
- wherein the bobbin comprises a first groove formed on the upper surface of the bobbin,
- wherein the first groove is overlapped with the connecting part of the upper spring in an optical axis direction,
- wherein the bobbin is spaced apart from the base at an initial position when no current is supplied to the first coil, and
- wherein an upward moving distance of the bobbin from the initial position is greater than a downward moving distance of the bobbin from the initial position.
A lens driving motor, comprising:
- a base;
- a cover can disposed on the base and comprising an upper plate and a lateral plate extending from the upper plate;
- a bobbin disposed in the cover can;
- a housing disposed between the cover can and the bobbin;
- a magnet disposed in the cover can;
- a first coil disposed in the cover can and facing the magnet to perform a focusing operation;
- and
- an upper spring coupled with an upper surface of the bobbin and an upper surface of the housing,
- wherein the upper spring comprises an inner part coupled with the upper surface of the bobbin, an outer part coupled with the upper surface of the housing, and a connecting part connecting the outer part and the inner part,
- wherein the bobbin comprises a first groove formed on the upper surface of the bobbin,
- wherein the first groove is overlapped with the connecting part of the upper spring in an optical axis direction,
- wherein the bobbin is spaced apart from the base at an initial position when no current is supplied to the first coil, and
- wherein an upward moving distance of the bobbin from the initial position is greater than a downward moving distance of the bobbin from the initial position.
A lens driving motor, comprising:
- a base;
- a cover can disposed on the base and comprising an upper plate and a lateral plate extending from the upper plate;
- a bobbin disposed in the cover can;
- a housing disposed between the cover can and the bobbin;
- a magnet disposed in the cover can;
- a first coil disposed in the cover can and facing the magnet to perform a focusing operation;
- and
- a second coil disposed on the base and facing the magnet to perform optical image stabilization operation.
Dependencies are inferred from the claim text.