A lens driving mechanism is provided, including a bottom plate, a housing, connected to the bottom plate, a movable portion movably received between the housing and the bottom plate, and a biasing assembly connecting the bottom plate to the base of the movable portion. The movable portion includes a frame, a holder, and a base, wherein the holder is received in the frame and configured to sustain the optical lens, and the base is connected to the frame and the holder. The biasing assembly connects the bottom plate to the base of the movable portion, wherein when viewed in a direction perpendicular to the optical axis, the base and the biasing assembly partially overlap.

A lens barrel that achieves modes with and without an optical element while reducing a size in an optical axis direction. A first drive mechanism moves a first optical element in the optical axis direction. A second optical element is located at an image surface side of the first optical element and is selectively inserted in an optical path. A second drive mechanism moves a holding member that holds the second optical element in a direction different from an optical axis. A control unit controls the first drive mechanism to move the first optical element to an object side to a position where the first optical element and the holding member are not in an overlap state when viewing in a direction perpendicular to the optical axis, controls the second drive mechanism to remove the second optical element from the optical path, when they are in the overlap state.

A lens barrel that achieves modes with and without an optical element while reducing a size in an optical axis direction. A first drive mechanism moves a first optical element in the optical axis direction. A second optical element is located at an image surface side of the first optical element and is selectively inserted in an optical path. A second drive mechanism moves a holding member that holds the second optical element in a direction different from an optical axis. A control unit controls the first drive mechanism to move the first optical element to an object side to a position where the first optical element and the holding member are not in an overlap state when viewing in a direction perpendicular to the optical axis, controls the second drive mechanism to remove the second optical element from the optical path, when they are in the overlap state.

A folded camera may include folded optics arrangement positioned optically in front of an image sensor. The folded optics arrangement may include one or more light-folding elements and a lens group having one or more lens elements. Light may pass through the folded optics arrangement, within which the light be folded or redirected by the light-folding element, to focus on an image plane on the image sensor. The folded camera may include a shape-memory actuator having one or more shape-memory elements, whose lengths and/or shapes may be controlled by regulating individual temperatures of the shape-memory elements. The shape-memory actuator may move the lens group relative to the image sensor to implement various autofocus (AF) functions. The folded camera may include a voice coil motor (VCM) which may be controlled to move the image sensor relative to the lens group to perform various optical image stabilization (OIS) functions.

A folded camera may include folded optics arrangement positioned optically in front of an image sensor. The folded optics arrangement may include one or more light-folding elements and a lens group having one or more lens elements. Light may pass through the folded optics arrangement, within which the light be folded or redirected by the light-folding element, to focus on an image plane on the image sensor. The folded camera may include a shape-memory actuator having one or more shape-memory elements, whose lengths and/or shapes may be controlled by regulating individual temperatures of the shape-memory elements. The shape-memory actuator may move the lens group relative to the image sensor to implement various autofocus (AF) functions. The folded camera may include a voice coil motor (VCM) which may be controlled to move the image sensor relative to the lens group to perform various optical image stabilization (OIS) functions.

An optical mechanism is provided. The optical mechanism includes an immovable part, a movable part, a drive assembly, and a guidance assembly. The movable part is connected to an optical element. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part. The guidance assembly guides the movable part to move along a first axis.

An optical mechanism is provided. The optical mechanism includes an immovable part, a movable part, a drive assembly, and a guidance assembly. The movable part is connected to an optical element. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part. The guidance assembly guides the movable part to move along a first axis.

A camera module includes a housing assembly, a driving assembly received in the housing assembly, and a lens assembly received in the driving assembly and including at least one lens aligned in a first direction. The driving assembly includes a first magnetic member fixed to one side surface of the driving assembly and driven in the first direction. The housing assembly includes a first coil disposed to face the first magnetic member and configured to generate a magnetic field in response to a first signal to drive the first magnetic member and a first position sensor disposed at one side of the first coil and configured to measure a position of the first magnetic member. The first position sensor is disposed to be partially overlapped with a first virtual expansion area formed by expanding the first magnetic member in a direction that uniformly maintains spacing from the first coil.

A camera module includes a housing assembly, a driving assembly received in the housing assembly, and a lens assembly received in the driving assembly and including at least one lens aligned in a first direction. The driving assembly includes a first magnetic member fixed to one side surface of the driving assembly and driven in the first direction. The housing assembly includes a first coil disposed to face the first magnetic member and configured to generate a magnetic field in response to a first signal to drive the first magnetic member and a first position sensor disposed at one side of the first coil and configured to measure a position of the first magnetic member. The first position sensor is disposed to be partially overlapped with a first virtual expansion area formed by expanding the first magnetic member in a direction that uniformly maintains spacing from the first coil.

The instant disclosure provides a focusing method and a focusing apparatus. The focusing apparatus includes a lens device, an image capture device, a focal length adjustment device, and a control device. The lens device includes a liquid lens module and an optical lens module. The optical lens module is disposed corresponding to the liquid lens module. The image capturing device is disposed corresponding to the lens device. The focal length adjustment device is disposed on the optical lens module or the image capture device to drive the optical lens module or the image capture device and change the focal length of the optical lens module. The control device electrically connects the lens device, the image capture device, and the focal length adjustment device to control the focal length of the liquid lens module and the optical lens module.