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US 10,951,799 B2Granted
Lens moving apparatus, and camera module and optical device comprising same
AssigneeLG Innotek Co., Ltd.
InventorsTae Bong Park, Sang Ok Park
Life of this patent
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Abstract
An embodiment comprises: a housing; a bobbin disposed in the housing; a first coil disposed on the bobbin; a magnet disposed on the housing; a first sensing coil, disposed on the housing, for generating a first induced voltage by interacting with the first coil; a first circuit board connected to the first coil and the first sensing coil; and a first amplifier, disposed on the first circuit board, for amplifying the first induced voltage of the first sensing coil and outputting a first amplified signal.
Claims20
A lens moving apparatus comprising:
- a housing;
- a bobbin disposed in the housing;
- a first coil disposed on the bobbin;
- a magnet disposed on the housing;
- a first sensing coil disposed on the housing to generate a first induced voltage by interaction with the first coil;
- an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing;
- a first circuit board electrically connected to the first coil and the first sensing coil;
- and
- a first amplifier disposed on the first circuit board to amplify the first induced voltage of the first sensing coil and to output a first amplified signal,
- wherein the upper elastic member comprises a first elastic member connected to one end of the first sensing coil and a second elastic member connected to another end of the first sensing coil, and
- wherein the first amplifier comprises a first input terminal electrically connected with the first upper elastic member and a second input terminal electrically connected with the second upper elastic member.
8 more elements
A lens moving apparatus comprising:
- a housing;
- a bobbin disposed in the housing;
- a first coil disposed on the bobbin;
- a magnet disposed on the housing;
- a sensing coil disposed on the housing to generate an induced voltage by interaction with the first coil;
- an upper elastic member coupled to the bobbin and the housing;
- a first circuit board disposed below the housing and comprising a terminal surface on which a plurality of terminals are provided;
- a supporting member connecting the upper elastic member and the first circuit board;
- and
- a first amplifier disposed on the first circuit board,
- wherein the upper elastic member comprises first and second upper elastic members electrically connected to both ends of the sensing coil, and
- wherein the supporting member comprises a first supporting member connecting the first upper elastic member and the first circuit board and a second supporting member connecting the second upper elastic member and the first circuit board, and
- wherein the first amplifier is configured to receive the induced voltage through the first and second upper elastic members and the first and second supporting members and to output a first amplified signal.
10 more elements
Dependencies are inferred from the claim text.