The driving unit includes: a first contact portion and a second contact portion that move relatively to each other while making contact with each other during driving; in which the second contact portion includes a coating layer at a contact face with the first contact portion, and the first contact portion and the second contact portion generate heat along with relative movement to vaporize a worn-away part of the coating layer.

An optical element driving mechanism is provided and includes a movable portion and a fixed portion. The movable portion includes a carrier for carrying an optical member with a first optical axis. The fixed portion has a top surface, a first side surface and a second side surface. The top surface extends in a direction that is parallel to the first optical axis. The first side surface and the second side surface extend in a direction that is not parallel to the first optical axis from the edge of the top surface and face different sides of the optical member. The shortest distance between the optical member and the first side surface is shorter than the shortest distance between the optical member and the second side surface.

An optical element driving mechanism is provided and includes a movable portion and a fixed portion. The movable portion includes a carrier for carrying an optical member with a first optical axis. The fixed portion has a top surface, a first side surface and a second side surface. The top surface extends in a direction that is parallel to the first optical axis. The first side surface and the second side surface extend in a direction that is not parallel to the first optical axis from the edge of the top surface and face different sides of the optical member. The shortest distance between the optical member and the first side surface is shorter than the shortest distance between the optical member and the second side surface.

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).

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).

A periscope optical module is provided. The periscope optical module includes a first optical element, a second optical element, and a third optical element. The first optical element has a first optical axis. The second optical element corresponds to the first optical element and adjusts a forward direction of a light. The third optical element has a second optical axis. The third optical element corresponds to the second optical element. The light passes through the first optical element, the second optical element, and the third optical element consecutively. The first optical axis is not parallel to the second optical axis. A minimum size of the first optical element in a direction that is perpendicular to the first optical axis is larger than a maximum size of the third optical element in a direction of the first optical axis.

A periscope optical module is provided. The periscope optical module includes a first optical element, a second optical element, and a third optical element. The first optical element has a first optical axis. The second optical element corresponds to the first optical element and adjusts a forward direction of a light. The third optical element has a second optical axis. The third optical element corresponds to the second optical element. The light passes through the first optical element, the second optical element, and the third optical element consecutively. The first optical axis is not parallel to the second optical axis. A minimum size of the first optical element in a direction that is perpendicular to the first optical axis is larger than a maximum size of the third optical element in a direction of the first optical axis.

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 imaging system includes a sensor configured to obtain position and attitude information of the optical imaging system; an optical lens component; an image stabilizing mechanism, configured to change a path of the light based on the position and attitude information. The image stabilizing mechanism includes a first optical element; a support frame supporting the first optical element; at least two magnets, disposed on two sides of the first optical element, respectively; at least two coils, facing to the at least two magnets, respectively. When a current flows through the coil, the respective magnet is driven to move according to a direction of the current, to cause the movable support frame carrying the first optical element to move with respect to one or more axes to change the path of the light.

An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.