LENS DRIVING DEVICE AND CAMERA MODULE COMPRISING SAME

摘要

A lens driving device according to an embodiment comprises: a bobbin wherein at least one lens is installed inside thereof and a first coil is installed on the outer circumferential surface thereof; a first magnet arranged around the bobbin so as to be opposite to the first coil; a housing for supporting the first magnet; upper and lower elastic members coupled with the bobbin and the housing; a first sensor for sensing displacement of the bobbin in the first direction; a second magnet arranged so as to be opposite to the first sensor; a base arranged to be spaced apart from the housing by a certain distance; a second coil arranged so as to be opposite to the first magnet; a circuit board whereon the second coil is installed; a plurality of support members for supporting the housing so as to be movable in the second and third directions which are orthogonal to the first direction with respect to the base and for connecting at least one of the upper and lower elastic members to the circuit board; and a second sensor for sensing displacement of the housing in the second or third direction with respect to the base.

主权项

1. A lens driving apparatus comprising:
a bobbin accommodating at least one lens therein, a first coil being disposed at an outer circumferential surface thereof; a first magnet disposed near the bobbin so as to face the first coil; a housing supporting the first magnet; upper and lower elastic members each coupled to both the bobbin and the housing; a first sensor detecting displacement of the bobbin in a first direction; a second magnet disposed to face the first sensor; a base disposed so as to be spaced apart from the housing by a predetermined distance; a second coil disposed so as to face the first magnet; a circuit board on which the second coil is mounted; a plurality of support members supporting the housing such that the housing is movable with respect to the base in second and third directions, which are perpendicular to the first direction, the support members connecting at least one of the upper or lower elastic member to the circuit board; and a second sensor detecting displacement of the housing with respect to the base in the second and third directions.