An optical imaging system includes a lens unit including at least three lenses; an image sensor that moves along an optical axis direction and receives light that has passed through the lens unit; and a reflective member disposed on an object side of the lens unit and having a reflective surface to change a path of light. The optical imaging system satisfies 0<(SAS/f)/OD<0.15, where SAS is a moving distance of the image sensor along the optical axis direction, f is a total focal length of the lens unit, and OD is an object distance.

The present disclosure provides an imaging lens assembly module including a baseplate and an imaging lens assembly. The imaging lens assembly includes an imaging lens set and a barrel. The imaging lens set includes at least one lens element. The at least one lens element includes two first trimmed surfaces. The barrel includes a barrel portion and a base portion. The barrel portion has a first inner surface, and the barrel portion includes two second trimmed surfaces. The barrel portion and the base portion are formed integrally, a shortest distance is defined between the first trimmed surfaces of the lens element, a shortest distance is defined between the second trimmed surfaces of the barrel portion, and the optical axis passes vertically through the shortest distance between the first trimmed surfaces and the shortest distance between the second trimmed surfaces.

Voice coil motor (VCM) actuators for rotating an optical path folding element (OPFE) over an extended scanning range relative to a scanning/rotation range needed for optical image stabilization (OIS).

Actuators for providing an extended two-degree of freedom rotation range to an optical path folding element (OPFE) such as a prism or mirror in mobile devices such as smartphones, comprising a yaw sub-assembly having a yaw rotation axis, a pitch sub-assembly carrying the OPFE, the pitch sub-assembly including a pivot rotation mechanism and having a pitch rotation axis; and a stationary sub-assembly, wherein the actuator is operative to rotate the OPFE in two rotation directions, a first rotation for yaw around the yaw rotation axis and a second rotation for pitch around the pitch rotation axis, and wherein the rotation for pitch includes rotation using the pivot rotation mechanism.

A camera module is provided. The camera module includes a housing, and a first lens module and a second lens module disposed in the housing and individually movable in an optical axis direction, the first and second lens modules being configured to generate rolling friction on one of both sides of each of the first and second lens modules and sliding friction on the other of both sides when the first and second lens modules are moved.

An actuator for a reflector according to an embodiment of the present disclosure includes a moving frame having a reflector configured to reflect light to a lens, and a magnet, a base frame configured to provide a moving space for the moving frame, a driving coil configured to generate a magnetic force at the magnet so that the moving frame rotates based on the base frame, a guide rail formed at any one of the moving frame and base frame and having a rounded shape, a holder provided to any one of the moving frame and the base frame not provided with the guide rail, provided in a direction facing the guide rail, and having a groove shape; and a ball arranged between the guide rail and the holder.

A photographing optical lens system includes five lens elements being, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. Each lens element has an object-side surface facing the object side and an image-side surface facing the image side. The first lens element has positive refractive power and the object-side surface being convex in a paraxial region thereof. The image-side surface of the third lens element is convex in a paraxial region thereof. The object-side surface of the fourth lens element is convex in a paraxial region thereof. The fifth lens element has negative refractive power, the object-side surface being convex, and the image-side surface being concave in a paraxial region thereof.

A flat-plate lens and an optical imaging system are provided. The flat-plate lens, includes a first face and a second face, the first face includes a ring-shaped light-transmitting region and a first reflective region surrounded by the ring-shaped light-transmitting region, and the second face includes an imaging region and a second reflective region surrounding the imaging region. The second reflective region is configured to reflect light to the first reflective region, and the first reflective region is configured to reflect light to the imaging region; the second reflective region includes a first mirror. The first mirror is one selected from the group consisting of a free-form curved mirror, an aspheric mirror and a spherical mirror, and the first reflective region includes at least one selected from the group consisting of a free-form curved mirror, an aspheric mirror, a spherical mirror and a plane mirror.

An adjustable mirror motor assembly includes a base, a mirror motor component, and a housing. The mirror motor component is fixed on the base and includes a mount and a dragging member. The mount is fixed on the base. A pivot end of the dragging member is pivotally connected to a pivot portion of the mount, and a slide end of the dragging member is slidably disposed in a slide portion of the mount, so that the slide end is pivotally rotated with respect to the pivot end and is slidably moved in the slide portion. A magnet component is on a magnet fixation portion of the dragging member. A mirror is on a mirror fixation portion of the dragging member. The housing covers the base and the mirror motor component.

An optical imaging lens assembly having a zooming function includes, in order from an object side to an image side along an optical path: a reflection group and a lens group. The reflection group includes a prism having an object-side surface being convex. The prism includes a reflection surface configured to reflect an imaging light passing through the object-side surface of the prism and send the imaging light to an image-side surface of the prism. The lens group includes at least three lens elements arranged along the optical path, and each of the at least three lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The lens group includes a movable group, and the movable group moves along a direction parallel to an optical axis in a zooming process.