A magnet arrangement structure suitable for a voice coil motor is provided by the present invention, comprise a magnet holder and a coil holder coaxial with the magnet holder, wherein 2n groups of magnets are provided on the magnet holder, each group of magnets is symmetrically provided around a central axis of the magnet holder, each group of magnets comprises at least one magnet, and each magnet has two magnetic poles; the surfaces facing the central axis of each group of magnets comprise two different magnetic poles, and each magnetic pole is opposite to the magnetic pole; and each group of magnets also corresponds to a coil. Compared with the traditional art, the magnetic field intensity passing through the coil can be improved, power consumption is reduced, electromagnetic force is increased, and the benefits of reducing weight, cost and size of the motor are achieved.

The present invention relates to an optical device (1), comprising: a container (2) forming a fluidic lens, the container (2) comprising a transparent and elastically expandable membrane (10), a transparent optical element (20) facing the membrane (10), and a wall member (3), wherein the optical element (20) and the membrane (10) are connected to the wall member, and wherein said container encloses a volume (V) that is filled with a fluid (F), a lens shaping part (11) that is in contact with said membrane (10) for defining a curvature adjustable area (10c) of the membrane (10), which area (10c) faces said optical element (20), and a circumferential lens barrel (50) extending in an axial direction, which lens barrel (50) surrounds an opening (50c) in which at least one rigid lens (51) is arranged that is held by the lens barrel (50), and a voice coil motor (5) that is designed to move the lens shaping part (11) along an axial direction (z) with respect to said container (2), so as to adjust a curvature of said area (10c) and therewith a focal length of the fluidic lens, wherein the voice coil motor (5) comprises at least one coil (30, 31) arranged on a movable part (6) and a plurality of magnetic structures (40, 41) arranged on a motor holder (7), wherein said movable part (6) is movably mounted to the motor holder (7) via a spring structure (8) so that it can be moved along said axial direction (z), and wherein the lens shaping part (11) is mounted to said movable part (6).

Disclosed are an optical path changing unit and a lens assembly comprising same. The optical path changing unit comprises: a base; a prism unit a part of which is connected to the base and the other part of which is arranged to be movable within the base; and first to third optical image stabilizing (OIS) drive units which change the prism unit into a tiltable position.

An optical component driving mechanism is provided. The optical component driving mechanism includes a first movable portion, a fixed portion, a first circuit member, and a first reinforcing component. The first movable portion is connected to the first optical component. The first optical component has a first optical axis. The first movable portion is movable relative to the fixed portion. The first circuit member is disposed on the fixed portion, and the first circuit member is configured to transmit electrical signals. The first reinforcing component is disposed on the first circuit member.

An optical element driving unit includes a stationary body, a carrier, a supporting mechanism and an electromagnetic driving assembly. The supporting mechanism is connected to the carrier and the stationary body and provides the carrier with a degree of freedom of movement relative to the stationary body. The carrier can be driven to move by the electromagnetic driving assembly. The electromagnetic driving assembly includes a driving coil, a driving magnet and a ferromagnetic element. The driving coil is disposed on the carrier. The driving magnet is disposed on the stationary body. The ferromagnetic element is one-piece formed and embedded in the carrier, and the ferromagnetic element includes a magnetic field guiding part and an electrical connection part. The magnetic field guiding part faces the driving coil and/or the driving magnet. The electrical connection part is exposed on a surface of the carrier and electrically connected to the driving coil.

An endoscope apparatus has an endoscope and a video processor. The endoscope has a magnet and a coil, the magnet has a voice coil motor configured to be movable with respect to the coil and a Hall device disposed in the vicinity of the coil and configured to detect a magnetic field of the magnet in order to detect a position of the magnet. The video processor includes a position detection circuit configured to detect the position of the magnet from an outputted signal of the Hall device, an arithmetic operation section configured to correct a sensor output signal indicating the position of the magnet detected by the position detection circuit using correction information and output the sensor output signal, and a drive control circuit configured to control a current or a voltage to the coil based on an arithmetic operation result of the arithmetic operation section.

A camera, camera lens, image sensor, and a shape memory alloy (SMA) motor are stacked within a frame. The SMA motor is located on an out-light side of the camera lens. The image sensor is located between the lens and the SMA motor and is fastened to the SMA motor. The SMA motor is configured to actuate the image sensor to shift on a plane perpendicular to an optical axis of the camera lens. The camera may be associated with an electronic device.

A camera module includes a lens assembly aligned along an optical axis, an optical image stabilization (OIS) carrier coupled to the lens assembly to move the lens assembly on a plane perpendicular to the optical axis, and a housing to accommodate the lens assembly and the OIS carrier. A first OIS magnet and a second OIS magnet are fixed to a first side surface of the OIS carrier, and are arranged side by side on the first side surface along a direction perpendicular to the optical axis. A first OIS coil member and a second OIS coil member face the first OIS magnet and the second OIS magnet, respectively. A first portion of the first OIS magnet is adjacent to the second OIS magnet and a second portion of the second OIS magnet is adjacent to the first OIS magnet.

An optical image stabilization actuator is provided. The optical image stabilization actuator includes a sensor substrate on which an image sensor having an imaging plane is disposed; a fixed frame configured to accommodate the sensor substrate; a movable frame accommodated in the fixed frame and configured to move in a direction parallel to the imaging plane; a first ball member disposed between the fixed frame and the movable frame and configured to support movement of the movable frame; and a first driver disposed on the movable frame and the fixed frame and configured to provide driving force to the movable frame, wherein the sensor substrate includes a movable portion coupled to the movable frame, a fixed portion coupled to the fixed frame, and a plurality of bridges configured to movably support the movable portion.

In an optical unit with a shake correction function, a frame-shaped holder to which a camera module is fixed to an inner periphery being structured of a metal portion formed of a metal material, and a resin portion formed of a resin material and integrated with the metal portion by insert molding. The metal portion includes magnet fixing portions formed of a magnetic material and to which a driving magnet is fixed, and spherical body contact portions in contact with a spherical body made of metal and serving as a fulcrum for pivotal movement of the holder.