A lens moving apparatus comprising: a housing supporting a magnet; a bobbin suitable for including a lens barrel, the bobbin having an outer circumferential surface on which a first coil is disposed, and being disposed in the housing and moving in the housing in a first direction, which first direction is along an optical axis; the bobbin is provided on the outer circumferential surface thereof with the first coil , which is located inside the magnet so as to face the magnet , the magnet supported by the housing ; an upper elastic member coupled to an upper portion of the bobbin ; a lower elastic member connected to a lower portion of the bobbin ; a third coil disposed on an outer side surface of the housing and disposed above the first coil so as to be spaced apart from the first coil in the first direction along the optical axis; and a second coil disposed so as to be spaced apart from the first coil in the first direction, and disposed below the housing in the first direction, for performing handshake correction by driving the housing in a direction perpendicular with the first direction, wherein the bobbin is configured to move in the first direction via electromagnetic interaction between the first coil and the magnet , wherein a distance in the first direction between the first coil and the third coil is configured to vary as the first coil and the bobbin move in the first direction, wherein an induction voltage is generated based on the distance in the first direction between the first coil and the third coil , when the first coil and the bobbin move in the first direction, wherein the upper and lower elastic members are connected to the housing . a housing supporting a magnet; a bobbin suitable for including a lens barrel, the bobbin having an outer circumferential surface on which a first coil is disposed, and being disposed in the housing and moving in the housing in a first direction, which first direction is along an optical axis; the bobbin is provided on the outer circumferential surface thereof with the first coil , which is located inside the magnet so as to face the magnet , the magnet supported by the housing ; an upper elastic member coupled to an upper portion of the bobbin ; a lower elastic member connected to a lower portion of the bobbin ; a third coil disposed on an outer side surface of the housing and disposed above the first coil so as to be spaced apart from the first coil in the first direction along the optical axis; and a second coil disposed so as to be spaced apart from the first coil in the first direction, and disposed below the housing in the first direction, for performing handshake correction by driving the housing in a direction perpendicular with the first direction, wherein the bobbin is configured to move in the first direction via electromagnetic interaction between the first coil and the magnet , wherein a distance in the first direction between the first coil and the third coil is configured to vary as the first coil and the bobbin move in the first direction, wherein an induction voltage is generated based on the distance in the first direction between the first coil and the third coil , when the first coil and the bobbin move in the first direction, wherein the upper and lower elastic members are connected to the housing . <EOS>