Lens driving device, camera module, and optical device

A lens driving device comprising:

• a base;
• a housing spaced apart from the base;
• a bobbin disposed in the housing;
• a first magnet disposed on the housing;
• a first coil disposed on the bobbin and facing the first magnet;
• a first substrate disposed between the base and the housing and comprising a second coil facing the first magnet;
• an upper elastic member connecting the housing and the bobbin;
• a lateral elastic member connecting the first substrate and the upper elastic member;
• a second magnet disposed on the bobbin;
• and
• a sensor detecting the second magnet,
• wherein the bobbin comprises a recess disposed with the second magnet,
• wherein the upper elastic member comprises an inner portion coupled with the bobbin, an outer portion coupled with the housing, and a connection portion connecting the inner portion and the outer portion, and
• wherein the inner portion comprises a first region overlapped with the second magnet in an optical axis direction.

A lens driving device comprising:

• a bobbin;
• a first coil disposed on the bobbin;
• a first magnet facing the first coil;
• an upper elastic member connected to the bobbin;
• a second magnet disposed on the bobbin;
• and
• a sensor detecting the second magnet,
• wherein the bobbin comprises a recess disposed with the second magnet,
• wherein the bobbin is opened at a portion corresponding to an upper surface of the second magnet by the recess of the bobbin, and
• wherein the upper elastic member comprises an inner portion coupled with the bobbin, an outer portion disposed at an outer lateral of the inner portion, a connection portion connecting the inner portion and the outer portion, and a first region extending from the inner portion and covering the upper surface of the second magnet when viewed from above.

A lens driving device comprising:

• a base;
• a housing spaced apart from the base;
• a bobbin disposed in the housing;
• a first magnet disposed on the housing;
• a first coil disposed on the bobbin and facing the first magnet;
• a first substrate disposed between the base and the housing and comprising a second coil facing the first magnet;
• an upper elastic member connecting the housing and the bobbin;
• a lateral elastic member connecting the first substrate and the upper elastic member;
• a second magnet disposed on the bobbin;
• and
• a sensor configured to detect the second magnet,
• wherein the upper elastic member is disposed on an upper surface of the bobbin,
• wherein the bobbin comprises a recess disposed with the second magnet,
• wherein the upper surface of the bobbin is opened at a portion corresponding to an upper surface of the second magnet by the recess of the bobbin,
• wherein the upper elastic member comprises a first region overlapping the second magnet in an optical axis direction, and
• wherein an adhesive is disposed between the first region of the upper elastic member and the upper surface of the second magnet.