A camera module is provided, including a holder, a base, a bottom, an image sensor, and a first biasing element. The holder holds an optical lens and is disposed on the base. The bottom supports the image sensor and connects to the base via the first biasing element. The bottom and the image sensor can be moved with respect to the base by the first biasing element.

A camera assembly comprises a lens assembly (20) supported on a support structure (4), wherein the lens assembly includes an autofocus actuator arrangement (24) and the camera assembly includes an optical image stabilization assembly (40) arranged to move the lens assembly in a plane perpendicular to the optical axis. A flexible printed circuit tape (103) connected between the support structure (4) and the lens assembly (20) and providing an electrical connection to the auto-focus actuator arrangement (24) is bent around a corner, thereby allowing the flexible printed circuit tape (103) to accommodate the motion of the lens assembly perpendicular to the optical axis. A crimp plate (62) connected to the lens assembly which crimps shape memory alloy wires (80) has features (63) extending out of the plane of the crimp plate for reducing flexibility. At least part of the optical image stabilzation assembly overlaps the lens assembly in the direction along the optical axis, thereby reducing the height of the camera assembly.

A camera module includes a support structure having an internal space, a movable body disposed in the internal space of the support structure, and a plurality of driving wires supporting the movable body in the internal space of the support structure and configured to move the movable body relative to the support structure, each of the driving wires being made of a shape-memory alloy and having one end connected to the support structure, and another end connected to the movable body. An angle between the movable body and each of the driving wire is maintained at 15.5° or less at all positions to which the movable body is movable by the driving wires.

An actuator assembly (140) comprises first and second parts. A first axis (Z) is defined with reference to the second part. The actuator assembly (140) comprises shape-memory alloy wire (80) connected between the first and second parts for moving the first part relative to the second part in any of a set of directions that are at least partly perpendicular to the first axis (Z). The set of directions includes first and second directions. The actuator assembly (140) comprises a set of arms (170), each of which is connected between the first and second parts and extends partly around the first axis (Z). The set of arms (170) is configured to provide a biasing force that biases the first part towards a first position relative to the second part. The set of arms (170) has a first stiffness when the first part is moved away from the first position in the first direction and a second, lower stiffness when the first part is moved away from the first position in the second direction. At least one of the set of arms (170) comprises a portion (100) that is configured to decrease the first stiffness by a larger relative amount than the portion (100) decreases the second stiffness.

The present disclosure provides a lens module. The lens module includes: a base; a lens carrier movably installed to the base; a driver configured to connect the base with the lens carrier in a transmission way and to drive the lens carrier to partially expand out of or retract into the base; and a magnet assembly provided correspondingly at the base and the lens carrier. The lens carrier can be in press fit with an inner wall of the base under a magnetic force of the magnet assembly, so that the lens carrier can maintain relatively fixed with the base in a direction perpendicular to a telescoping direction during expansion and retraction of the lens carrier. Therefore, the lens carrier and the base can always maintain precise coaxiality in the telescoping direction.

A suspension assembly is described. The suspension assembly including a static member or plate; a moving member or plate movable about an x-axis and a y-axis with respect to the static plate; a sensor mounting region on the moving plate; and one or more shape memory alloy (SMA) elements extending between and coupled to the static plate and moving plate. The SMA elements, when driven by a controller, move the moving plate and the sensor mounting region thereon about the x-axis and the y-axis with respect to the static plate.

SMA actuators and related methods are described. One embodiment of an actuator includes a base; a plurality of buckle arms; and at least a first shape memory alloy wire coupled with a pair of buckle arms of the plurality of buckle arms. Another embodiment of an actuator includes a base and at least one bimorph actuator including a shape memory alloy material. The bimorph actuator attached to the base.

SMA actuators and related methods are described. One embodiment of an actuator includes a base; a plurality of buckle arms; and at least a first shape memory alloy wire coupled with a pair of buckle arms of the plurality of buckle arms. Another embodiment of an actuator includes a base and at least one bimorph actuator including a shape memory alloy material. The bimorph actuator attached to the base.

A lens driving module includes first and second bases, a bottom base, a reset assembly, a PCB, first and second driving assemblies respectively driving first base to rotate about a first axis and second base to rotate about a second axis, and a lens mounted on the first base. The reset assembly includes reset members provided at two opposite sides of the bottom base along the first axis or the second axis. Each reset member includes first to third connection portions, a first elastic arm connected between first and second connection portions and configured to reset the first base, and a second elastic arm connected between second and third connection portions and configured to reset the second base. The first to third connection portions are respectively connected to first and second bases and bottom base, respectively. The lens driving module has a simplified structure, compact size, and improved stability.

A lens module includes a base, a lens assembly, a bearing member including fixing and rotating frames, a shape memory alloy wire assembly including first and second shape memory alloy (SMA) wires, and at least one first and second wire-binding clamp members. The first SMA wires drive rotating frame to rotate relative to base about a first direction, and the second SMA wires drive the fixing frame to rotate relative to the rotating frame about a second direction. The first and second directions are perpendicular to each other and perpendicular to optical axis of the lens assembly. The rotating frame includes first and second rotating side plates. Each first wire-binding clamp member is connected to two first SMA wires, and each second wire-binding clamp member is connected to two second SMA wire. The lens module has low cost and occupies a small space, and the magnetic interference can be avoided.