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US 12,204,166 B2Granted
Lens driving apparatus
AssigneeLG Innotek Co., Ltd.
InventorJi Hoon Kim
Life of this patent
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Abstract
Disclosed is a lens driving apparatus. The lens driving apparatus includes a base, a yoke coupled to the base, having an upper surface formed with a hole, a closed side surface, and an opened bottom surface, a bobbin movably installed in an inner portion of the yoke, a lens module coupled to the bobbin to go in and out the hole according to movement of the bobbin, a magnet fixed to an inner portion of the yoke, a coil fixed to an outer portion of the bobbin while facing the magnets, and springs coupled to the bobbin to provide restoration force to the bobbin.
Claims20
A lens driving apparatus comprising:
- a base;
- a metal case configured to serve as both a yoke and an outer case, the metal case being coupled to the base;
- a bobbin disposed in the metal case;
- a coil disposed on an outer portion of the bobbin and wound in a polygonal shape;
- four magnets facing the coil and disposed between the coil and the metal case;
- and
- upper and lower springs disposed in the metal case and coupled to the bobbin,
- wherein each of the four magnets has a flat side surface facing the coil,
- wherein the outer portion of the bobbin has four flat surfaces,
- wherein portions of the coil facing the four magnets are disposed on the four flat surfaces of the outer portion of the bobbin, respectively.
7 more elements
Dependencies are inferred from the claim text.