A lens barrel has at least one movable lens group that can move in one direction and the other direction along the optical axis, the lens barrel comprising: a movable lens frame; a voice coil motor for driving a movable lens group and the movable lens frame along the optical axis; and a stopper mechanism brought into contact with the movable lens frame. The stopper mechanism includes a stopper member that moves between a retracted position where the stopper member does not touch the movable lens frame when the voice coil motor is energized, and an abutting position where the stopper member is brought into contact with the movable lens frame when the voice coil motor is not energized.

A lens barrel has at least one movable lens group that can move in one direction and the other direction along the optical axis, the lens barrel comprising: a movable lens frame; a voice coil motor for driving a movable lens group and the movable lens frame along the optical axis; and a stopper mechanism brought into contact with the movable lens frame. The stopper mechanism includes a stopper member that moves between a retracted position where the stopper member does not touch the movable lens frame when the voice coil motor is energized, and an abutting position where the stopper member is brought into contact with the movable lens frame when the voice coil motor is not energized.

A sensor actuator includes a first movable body on which an image sensor having an imaging plane is disposed, a second movable body spaced apart from the first movable body in a direction perpendicular to the imaging plane, a fixed body accommodating the first movable body and the second movable body, and a driver configured to provide driving force to the first movable body, wherein the first movable body and the second movable body move together in a direction parallel to the imaging plane, and the first movable body rotates relative to the second movable body.

A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a cylindrical bobbin for accommodating a lens and protruded at a bottom end with a boss, and a coil block arranged at a periphery of the bobbin; a stator including a magnet facing the coil block and a yoke fixing the magnet; and an elastic member including a first elastic member formed with a through hole coupled to the boss of the bobbin and a second elastic member coupled to an upper end facing the bottom end of the bobbin; wherein the boss is formed with a disengagement prevention unit inhibiting the first elastic member from being disengaged from the boss, and the first elastic member is formed with a coupling unit contacting a joint where the disengagement prevention unit and the coupling unit meet.

A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a cylindrical bobbin for accommodating a lens and protruded at a bottom end with a boss, and a coil block arranged at a periphery of the bobbin; a stator including a magnet facing the coil block and a yoke fixing the magnet; and an elastic member including a first elastic member formed with a through hole coupled to the boss of the bobbin and a second elastic member coupled to an upper end facing the bottom end of the bobbin; wherein the boss is formed with a disengagement prevention unit inhibiting the first elastic member from being disengaged from the boss, and the first elastic member is formed with a coupling unit contacting a joint where the disengagement prevention unit and the coupling unit meet.

An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed part, a movable part, and a driving assembly. The fixed part includes a bottom. The movable part moves relative to the fixed part and holds an optical element with an optical axis. The driving assembly drives the movable part to move relative to the fixed part. The bottom includes a base and an embedded assembly. A portion of the embedded assembly is embedded in the base. The embedded assembly includes a circuit member and a strengthening frame with a plate structure. The strengthening frame includes a perforation. The optical axis passes through the perforation.

A driving mechanism is provided, including a base, a movable module, and a driving assembly. The movable module has a movable member and a connecting member connected to the movable member. The driving assembly is connected to the base and the connecting member. The driving assembly has a driving element that generates a driving force to the connecting member and the movable member, so that the movable module moves relative to the base.

A camera module includes a camera motor, a lens, an image sensor assembly, and a variable aperture. The camera motor includes a focusing part, and the focusing part includes a base, a carrier, and a driver. The driver is fastened to the base and is configured to drive the carrier to move relative to the base in a specified direction. The carrier forms an installation hole in a specified direction. The lens is fastened in the installation hole, and an optical axis of the lens is parallel to the specified direction. The variable aperture is fastened on the carrier and located on a light incoming side of the lens. The image sensor assembly is disposed at one end of that is of the base and that is away from the variable aperture. Both of the variable aperture and the lens are disposed on the carrier of the focusing part.

A camera module includes a camera motor, a lens, an image sensor assembly, and a variable aperture. The camera motor includes a focusing part, and the focusing part includes a base, a carrier, and a driver. The driver is fastened to the base and is configured to drive the carrier to move relative to the base in a specified direction. The carrier forms an installation hole in a specified direction. The lens is fastened in the installation hole, and an optical axis of the lens is parallel to the specified direction. The variable aperture is fastened on the carrier and located on a light incoming side of the lens. The image sensor assembly is disposed at one end of that is of the base and that is away from the variable aperture. Both of the variable aperture and the lens are disposed on the carrier of the focusing part.

A lightweight lens barrel with two focus lenses; a first lens holding frame for holding a first lens, a first drive unit for causing the first lens holding frame to move in the optical axis direction, a second lens holding frame for holding a second lens, a second drive unit for causing the second lens holding frame to move in the optical axis direction, and a moving tube with the first driving unit and the second driving unit, and movable in the optical axis direction, wherein the first lens holding frame and the second lens holding frame are each movable in the optical axis direction with respect to the moving tube.