Abstract: A camera apparatus including a housing; a first lens barrel and a second lens barrel movable in an optical axis direction; first magnet segment regions disposed on a first side of the first lens barrel and second magnet segment regions disposed on a second side of the second lens barrel; and a plurality of first driving coils disposed on a first side of the housing and a plurality of second driving coils disposed on a second side of the housing. A width of one of the first driving coils or one of the second driving coils along the optical axis direction is greater than or equal to a width of one of the first magnet segment regions or the second magnet segment regions along the optical axis direction.

Abstract: A camera module includes a housing having an internal space, and a first lens module and a second lens module disposed in the internal space and each configured to be movable in an optical axis direction, wherein a first shaft and a first ball member are disposed between the first lens module and the housing, wherein a second shaft and a second ball member are disposed between the second lens module and the housing, and wherein, when moving in the optical axis direction, rolling friction occurs on one of both sides of each lens module, and sliding friction occurs on the other of both sides.