A camera module includes: a lens module comprising one or more lenses; and an optical path adjustment member disposed to face the lens module or an imaging plane, and configured to be driven in a direction of an optical axis of the lens module to vary a distance from a rearmost lens of the lens module to the imaging plane.

The present disclosure provides a camera device including a deflected optical system and provided with an anti-shake mechanism without increasing a size of the camera device. The optical system includes a reflection member that deflects an optical axis, and it sequentially includes, from an object side, a reflection member, camera lens groups, and a camera element, to rotate the reflection member with an axis perpendicular to a plane defined by an optical axis of the camera lens groups and an optical axis at the object side reflected by the reflection member, and an axis parallel to the optical axis at the reflected object side being rotation axes, in such a manner that a hand-shake is corrected.

A camera module includes an imaging lens assembly, an image sensor, a first reflecting member and a first driving apparatus. The imaging lens assembly is for converging an imaging light on an image surface. The image sensor is disposed on the image surface. The first reflecting member is located on an image side of the imaging lens assembly, the first reflecting member is for folding the imaging light, and has a first translational degree of freedom. The first reflecting member is assembled on the first driving apparatus, and the first driving apparatus is for driving the first reflecting member moving along the first translational degree of freedom.

A camera apparatus is described that includes a frame housing and a camera module affixed to the frame housing. The camera module may include a lens and an image sensor. The camera apparatus may include a reflective element and a motor. The reflective element may be disposed within the frame housing, the reflective element being movable relative to the lens to select a direction from which the lens collects light. The motor may be adapted to move the reflective element in response to detecting a magnetic field change generated by at least one magnet disposed within the frame housing.

A method for displacing an optical component is disclosed, in which the electrical power maximally required when displacing the component is less than the sum of the maximum electrical powers of the at least two actuators used for the displacement.

The present application discloses a component having a movably mounted component element of a projection exposure apparatus and in particular a movement limiting apparatus, and a method for limiting the movement of movable component elements of a component of a projection exposure apparatus.

A lens unit with a central axis is provided. The lens unit includes a fixed portion, a movable portion, and a first driving assembly. The fixed portion includes an outer frame and a bottom combined with the outer frame. The outer frame and the bottom are arranged along the central axis. The movable portion is movably connected to the fixed portion, and carries a lens with an optical axis. The central axis is not parallel to the optical axis. The first driving assembly is connected to the movable portion, and drives the movable portion to move relative to the fixed portion. The first driving assembly also includes a biasing element made of a shape memory alloy.

An optical member driving mechanism is provided, including a movable portion, a fixed portion, and a driving assembly. The movable portion is connected to an optical member. The fixed portion has an accommodating space, and the optical member is received in the accommodating space. The movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the fixed portion.

An optical element adjusting mechanism is provided, including a frame, a carrier, and an optical element. The frame includes a plurality of first positioning portions. The carrier includes a hollow body, a first axial portion connected to the hollow body, and a plurality of second positioning portions connected to the hollow body. The hollow body is connected to the frame through the first axial portion. The plurality of second positioning portions are disposed corresponding to the plurality of first positioning portions. The optical element is fixed on the hollow body. The plurality of second positioning portions are fixed to the plurality of first positioning portions through a plurality of adhesives. An optical element adjusting system and a projection device are also proposed. The optical element adjusting mechanism, the optical element adjusting system, and the projection device quickly, easily, and accurately adjust a rotation angle of the optical element.

Disclosed is an actuator unit for positioning an optical element, comprising a first reluctance actuator comprising a first stator part and a first mover part separated by a gap in a first direction. The first mover part is constructed and arranged to be connected to the optical element and for moving the optical element. The first stator part is constructed and arranged to exert a magnetic force on the first mover part along a first line of actuation. The first mover part is movable relative to the first stator part in the first direction. The first stator part and the first mover part are constructed and arranged such that the first line of actuation is, in operational use, moving along with the first mover part in a second direction perpendicular to the first direction, for at least a predetermined movement range of the first mover part in the second direction.