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US 12,750,574 B2Granted
Lens moving apparatus
AssigneeLG Innotek Co., Ltd.
InventorsSang Ok Park, Seong Min Lee, Jun Taek Lee, Byung Wook Son
Life of this patent
Estimating the term…
Abstract
Embodiments provide a lens moving apparatus including a first magnet, a housing, a bobbin, around which a coil is wound and which moves in a first direction in the housing, an upper elastic member disposed on upper surfaces of the bobbin and the housing, a lower elastic member disposed under lower surfaces of the bobbin and the housing, and a damping member disposed between the upper or lower elastic member and the bobbin.
Claims20
A lens moving apparatus comprising:
- a housing comprising first and second side walls opposite to each other and third and fourth side walls opposite to each other;
- a bobbin disposed in the housing;
- a first magnet comprising a first main magnet disposed on the first side wall, a second main magnet disposed on the second side wall, a first sub magnet disposed on the third side wall, a second sub magnet disposed on the fourth side wall;
- a coil disposed on the bobbin and configured to move the bobbin in an optical axis direction by an interaction with the first magnet;
- and
- a position sensor configured to detect a displacement of the bobbin;
- wherein the position sensor is disposed on the third side wall of the housing and spaced apart from the first sub magnet, and
- wherein the first sub magnet is not overlapped with the second sub magnet in a direction parallel to one of the opposite side walls of the housing, when viewed from a top.
5 more elements
A lens moving apparatus comprising:
- a housing;
- a bobbin disposed in the housing;
- a first magnet comprising a pair of main magnets disposed on opposite side walls of the housing and a pair of sub magnets disposed on other opposite side walls of the housing;
- a coil disposed on the bobbin and configured to move the bobbin in an optical axis direction by an interaction with the first magnet;
- and
- a second magnet disposed on the bobbin;
- and
- a position sensor disposed on one of the other opposite side walls of the housing so as to positioned closer to the first main magnet than to the second main magnet.
5 more elements
Dependencies are inferred from the claim text.