Disclosed is a camera module. The camera module includes: a camera housing, a first carrier that is at least partially disposed in the camera housing and configured to move in a direction of an optical axis, a second carrier at least partially disposed in the first carrier and including a lens assembly, the second carrier configured to move together with the first carrier in the direction of the optical axis based on an auto focus function being performed and to move relative to the first carrier in at least one direction perpendicular to the optical axis based on an image stabilization function being performed, and a damping structure configured to provide damping to the movement of the second carrier based on the image stabilization function being performed. The damping structure includes a stopper disposed on an upper surface of the first carrier, a damping material located on a first surface of the second carrier at least partially facing the upper surface, and a protrusion extending from the stopper to be at least partially coupled to the damping material.

This application provides a camera module and an electronic device, to reduce manufacturing costs of the camera module and improve reliability of the camera module on the premise of ensuring optical image stabilization and auto-focus functions. The camera module includes a housing, and a light transfer part, a lens group, an image sensor, and a motor disposed in the housing. The image sensor is located on the side of the light output side. The motor includes a bracket, a carrier, and eight wires. Two ends of the wires are respectively connected to the carrier and the bracket, and the wires are retractable in length. The carrier is suspended from the bracket using the eight wires and is configured to carry the lens group, and, when the wires extend or retracts in length, drive the lens group to translate or rotate.

This application provides a camera module and an electronic device, to reduce manufacturing costs of the camera module and improve reliability of the camera module on the premise of ensuring optical image stabilization and auto-focus functions. The camera module includes a housing, and a light transfer part, a lens group, an image sensor, and a motor disposed in the housing. The image sensor is located on the side of the light output side. The motor includes a bracket, a carrier, and eight wires. Two ends of the wires are respectively connected to the carrier and the bracket, and the wires are retractable in length. The carrier is suspended from the bracket using the eight wires and is configured to carry the lens group, and, when the wires extend or retracts in length, drive the lens group to translate or rotate.

An embodiment of the present invention provides a camera module comprising: a fixed part; a moving part which moves relative to the fixed part in an optical axis direction, a first driving part which moves the moving part within a first maximum speed; and a second driving part which moves the moving part within a second maximum speed, wherein the first driving part and the second driving part move the moving part in the optical axis direction, and the second maximum speed is greater than the first maximum speed.

An embodiment of the present invention provides a camera module comprising: a fixed part; a moving part which moves relative to the fixed part in an optical axis direction, a first driving part which moves the moving part within a first maximum speed; and a second driving part which moves the moving part within a second maximum speed, wherein the first driving part and the second driving part move the moving part in the optical axis direction, and the second maximum speed is greater than the first maximum speed.

A position detection device detects a position of a lens holder in an X-axis direction based on a change in an output value of a first magnetic sensor, a position of the lens holder in a Y-axis direction based on a change in an output value of a second magnetic sensor, and a position of the lens holder in a Z-axis direction based on the changes in the output values of the first magnetic sensor and the second magnetic sensor.

A position detection device detects a position of a lens holder in an X-axis direction based on a change in an output value of a first magnetic sensor, a position of the lens holder in a Y-axis direction based on a change in an output value of a second magnetic sensor, and a position of the lens holder in a Z-axis direction based on the changes in the output values of the first magnetic sensor and the second magnetic sensor.

An autofocus device based on a movable sensor driven by an SMA wire is provided. The autofocus device includes a housing including a first and second mounting grooves communicating with each other; a lens fixed inside the first mounting groove; a sensor assembly provided inside the second mounting groove and being reciprocally movable along a direction of an optical axis of the lens; and a driving element including the SMA wire having two end portions fixed on the housing and a middle portion connected to the sensor assembly, the middle portion is further away from the lens than the end portions, and configured to drive the sensor assembly to move under thermal shrinking; and an elastic element connected to the sensor assembly and configured to provide the sensor assembly with a restoring force so that the sensor assembly returns to an initial position.

An autofocus device based on a movable sensor driven by an SMA wire is provided. The autofocus device includes a housing including a first and second mounting grooves communicating with each other; a lens fixed inside the first mounting groove; a sensor assembly provided inside the second mounting groove and being reciprocally movable along a direction of an optical axis of the lens; and a driving element including the SMA wire having two end portions fixed on the housing and a middle portion connected to the sensor assembly, the middle portion is further away from the lens than the end portions, and configured to drive the sensor assembly to move under thermal shrinking; and an elastic element connected to the sensor assembly and configured to provide the sensor assembly with a restoring force so that the sensor assembly returns to an initial position.

An embodiment comprises: a housing; a bobbin disposed in the housing; a coil disposed on the bobbin; a magnet disposed in a side portion of the housing, and including a first side surface facing the coil and a second side surface opposite to the first side surface; and a yoke disposed in the upper portion of the housing and overlapping the magnet in the optical axis direction, wherein: the centerline of the magnet is located on one side with reference to a reference line; a first groove adjoining one end of the first side surface of the magnet is disposed at a first end of the magnet; a second groove adjoining the other end of the first side surface of the magnet is disposed at a second end of the magnet; the reference line passes through the center of the housing and is perpendicular to the outer surface of the side portion of the housing where the magnet is disposed; and the centerline of the magnet is a straight line passing through the center between the first end and the second end of the magnet and perpendicular to the first side surface of the magnet.