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.
Claims19
A lens driving motor, comprising:
- a base;
- a housing disposed on the base;
- a bobbin disposed in the housing;
- a magnet;
- a first coil facing the magnet and configured to move the bobbin in an optical axis direction;
- a second coil part comprising a substrate disposed on an upper surface of the base and a second coil facing the magnet and configured to move the bobbin in a direction perpendicular to the optical axis direction;
- an upper spring connecting an upper portion of the housing and the bobbin;
- and
- a lower spring connecting a lower portion of the housing and the bobbin,
- wherein an upward moving distance of the bobbin is greater than a downward moving distance of the bobbin,
- wherein the lower spring comprises two springs spaced apart from each other, and
- wherein the two springs of the lower spring electrically connect the first coil and the substrate.
A lens driving motor, comprising:
- a base;
- a housing disposed on the base;
- a bobbin disposed in the housing;
- a magnet;
- a first coil facing the magnet and configured to move the bobbin in an optical axis direction;
- a second coil part comprising a substrate disposed on an upper surface of the base and a second coil facing the magnet and configured to move the bobbin in a direction perpendicular to the optical axis direction;
- and
- an upper spring connecting an upper portion of the housing and the bobbin,
- wherein an upward moving distance of the bobbin is greater than a downward moving distance of the bobbin,
- wherein the bobbin comprises a rotation prevention part protrusively formed from an outer circumferential surface of the bobbin, and
- wherein the housing is spaced apart from the outer circumferential surface of the bobbin and the rotation prevention part.
A lens driving motor, comprising:
- a base;
- a housing disposed on the base;
- a bobbin disposed in the housing;
- a magnet;
- a first coil facing the magnet and configured to move the bobbin in an optical axis direction;
- a second coil part comprising a substrate disposed on an upper surface of the base and a second coil facing the magnet and configured to move the bobbin in a direction perpendicular to the optical axis direction;
- an upper spring connecting an upper portion of the housing and the bobbin;
- and
- a cover can coupled to the base and accommodating the housing;
- wherein the housing is integrally formed with the cover can, and
- wherein an upward moving distance of the bobbin is greater than a downward moving distance of the bobbin.
Dependencies are inferred from the claim text.