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 hybrid sensor shift platform for an optical image stabilization (OIS) actuator mechanism in compact camera modules includes two or more substrates. A top substrate is composed of an organic material (e.g., a resin) to reduce mass, reduce magnetic interaction with permanent magnets, and improve reliability. One or more lower substrates of the hybrid sensor shift platform are ceramic substrates that provide the benefits of ceramics for connection to the image sensor. The organic substrate is connected via a solder bond process to the lower ceramic substrate(s). The connection between the substrates is reinforced with an under-fill of epoxy that surrounds the solder bonds, thus creating a full interface between the substrates within the overlap.

Multi-cameras and in particular dual-cameras comprising a Wide camera comprising a Wide lens and a Wide image sensor, the Wide lens having a Wide effective focal length EFL.sub.W and a folded Tele camera comprising a Tele lens with a first optical axis, a Tele image sensor and an OPFE, wherein the Tele lens includes, from an object side to an image side, a first lens element group G1, a second lens element group G2 and a third lens element group G3, wherein at least two of the lens element groups are movable relative to the image sensor along the first optical axis to bring the Tele lens to two zoom states, wherein an effective focal length (EFL) of the Tele lens is changed from EFL.sub.T,min in one zoom state to EFL.sub.T,max in the other zoom state, wherein EFL.sub.Tmin>1.5×EFL.sub.W and wherein EFL.sub.Tmax>1.5×EFL.sub.Tmin.

The proposed invention relates to a camera module with an optical image stabilization function. A flexible printed circuit board (FPCB) electrically connected to an image sensor is implemented to serve as an electrical path and at the same time, serve to provide an elastic restoring force in directions of a plurality of axes, thereby further miniaturizing and lightening the camera module.

A lens driving device which is small in size and good in focus adjustment and hand-shake correction disclosed, including: a housing, including a fixing base having a circuit substrate and a cover forming a receiving space; a spring piece connecting a lens module and a supporting frame; a supporting component for supporting the supporting frame and a second supporting frame in the housing; a first magnet steel, mounted and fixed on the supporting frame; a first drive coil, mounted on the lens module to enable a movement in an optical axis direction under an electromagnetic action; and a second drive coil, disposed on the fixing bases, and oppositely disposed near a horizontal plane of a gravity center of the lens module above a second magnet steel so that the second magnet steel mounted on the supporting frame moves along a direction orthogonal to the optical axis under the electromagnetic action.

A voice coil motor including a first magnetic piece, a second magnetic piece, a third magnetic piece, and a counterweight, with the first magnetic piece, the second magnetic piece, the third magnetic piece, and the counterweight radially and sequentially arranged around an optical carrier, a first plurality of coils symmetrically fastened on two sides of the optical carrier, where the first plurality of coils includes a first coil and a second coil, the first coil is disposed opposite the first magnetic piece, and the second coil is disposed opposite the third magnetic piece, a first magnetic sensor, and a first induction magnet disposed opposite the first magnetic sensor. The first magnetic sensor is disposed on a side of the counterweight that is adjacent to the optical carrier, and the first induction magnet is fastened on an outer wall of the optical carrier that is adjacent to the counterweight.

Various embodiments include a dynamic flex circuit that may be used in a camera with a moveable image sensor. The dynamic flex circuit may include one or more fixed end portions, a moveable end portion, and an intermediate portion. In some embodiments, the fixed end portion may be connected to another flex circuit of the camera. The moveable end portion may be coupled with the moveable image sensor. The intermediate portion may be configured to allow the moveable end portion to move with the moveable image sensor. Some embodiments include a reinforcement arrangement that reinforces one or more portions of the dynamic flex circuit.

The tri-axis close-loop feedback controlling module for electromagnetic lens driving device comprises a 6-pin Hall element. Two pins of the Hall element are coupled to an auto-focus module for providing a current to drive the auto-focus module to conduct auto-focusing operations along the Z-axis; while other four pins of the Hall element are coupled to a control unit. The control unit detects the X-Y axial positions of the auto-focus module relative to an OIS module and generates a control signal which is then sent to the Han element. Therefore, the Hall element not only can provide its own feedback controlling function according to the Z-axial position of lens, but also can drive the auto-focus module based on the control signal corresponding to the X-Y axial positions of the auto-focus module, so as to achieve the goal of tri-axis close-loop feedback controlling for the electromagnetic lens driving device.

A distance measurement device includes an emission unit, a detection unit, a first reduction unit that reduces, based on a detection result of the detection unit, influence of variation of an optical axis of the image formation optical system on a subject image received as light by a light receiving section, a second reduction unit that reduces variation of an optical axis of the directional light with respect to the subject based on the detection result of the detection unit, and a control unit that, in the case of operating the first reduction unit and the second reduction unit at the same time, controls the first reduction unit and the second reduction unit to reduce variation of an irradiation position of the directional light in the subject image received as light by the light receiving section.

A distance measurement device includes a detection unit, an optical path forming unit, a common reduction unit that reduces influence of variation of an optical axis of an image formation optical system, and reduces variation of an optical axis of the directional light, an auxiliary reduction unit that auxiliarily reduces at least one of influence of variation of the optical axis of the image formation optical system or variation of the optical axis of the directional light, and a control unit that, in a case of operating the common reduction unit and the auxiliary reduction unit at the same time, controls the common reduction unit and the auxiliary reduction unit to reduce variation of an irradiation position of the directional light in a subject image received as light by a light receiving section.