Patent ID: 11880088
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A camera module, comprising:
a housing;
a carrier configured to move in an optical axis direction with respect to the housing;
two or more ball members disposed between the carrier and the housing, and configured to roll in the optical axis direction to guide movement of the carrier in the optical axis direction;
a first magnetic member disposed in the carrier; and
a second magnetic member disposed in the housing and configured to generate a magnetic attractive force between the first magnetic member and the second magnetic member to maintain the two or more ball members in contact with the carrier and the housing,
wherein a first ball member, among the two or more ball members, is in contact with the housing at two first points and in contact with the carrier at two second points,
wherein, while the carrier moves with respect to the housing, a center of the magnetic attractive force between the first magnetic member and the second magnetic member is disposed in a region having the two or more ball members as vertices,
wherein the carrier opposes the housing in a direction perpendicular to the optical axis direction, and
wherein a distance from a center of the first ball member to the two first points in the direction perpendicular to the optical axis direction is greater than a distance from the center of the first ball member to the two second points in the direction perpendicular to the optical axis direction.