Driving device and camera module

Abstract

The present application provides a driving device and a camera module, wherein the driving device comprises an auto-focusing assembly and an optical image stabilization assembly. The auto-focusing assembly comprises a focusing base, a focusing actuator and a fixed base, wherein the focusing actuator comprises at least one focusing coil and at least one focusing magnet, the focusing magnet is arranged on the focusing base, the focusing coil is supported by the fixed base and corresponds to the focusing magnet, so that when the focusing coil is energized, the lens is driven by the focusing base to move along the direction of the optical axis of the lens. The optical image stabilization assembly is supported by the fixed base, and the optical image stabilization assembly is drivingly connected with the imaging assembly, so that the optical image stabilization assembly drives the imaging assembly to compensate for shaking.

Description

Technical Field

[0001] This invention relates to the field of camera technology, and more particularly to a driving device and a camera module. Background Technology

[0002] As consumers' demand for mobile phone photography increases, the functions of mobile phone cameras (i.e., camera modules) are becoming more and more abundant. Features such as portrait shooting, telephoto shooting, optical zoom, and optical image stabilization are all integrated into cameras with limited space. Among them, autofocus and optical image stabilization often rely on optical actuators (or motors) to achieve these functions.

[0003] Autofocus (AF) works by utilizing the principle of light reflection from an object. The reflected light is received by the camera's CCD sensor, processed by a computer, and then drives the motorized focusing mechanism to achieve focus. Optical image stabilization (IOS) refers to the use of optical components, such as lens settings, in cameras or other similar imaging instruments to avoid or reduce camera shake during the capture of optical signals, thereby improving image quality. IOS uses special lens or CCD sensor structures to minimize image instability caused by operator movement.

[0004] As the image quality requirements for mobile phone camera modules become increasingly demanding, the size and weight of lenses are also increasing, placing greater demands on the driving force of motors. However, current electronic devices (such as mobile phones) are subject to significant size constraints on camera modules, and the motor's footprint increases accordingly with the lens's size. In other words, while lenses are trending towards larger size and greater weight, the driving force provided by the motor cannot be increased accordingly. With limited driving force, a heavier lens results in a shorter distance the motor can move the lens, affecting focusing and image stabilization capabilities. Furthermore, a heavier lens means a slower speed at which the motor can move the lens, and a longer time for the lens to reach the intended compensation position, which also affects focusing and image stabilization performance. Additionally, a heavier lens leads to a more complex motor mechanism, an increased number of parts, and a tendency for the overall thickness of the device to increase.

[0005] As mobile devices become increasingly smaller, the density of internal components in motors also increases. Motors contain magnets and coils to generate the magnetic field necessary to move the lens. This magnetic force drives the lens, enabling optical focusing and image stabilization. When two magnets in the motor are too close together (less than 7mm), their internal magnetic fields interfere with each other, causing magnet displacement or vibration, affecting lens focusing and image quality. Summary of the Invention

[0006] A key advantage of this invention is that it provides a driving device and a camera module, wherein the driving device has optical image stabilization and autofocus functions, which helps to improve the shooting effect and image quality of the camera module.

[0007] Another advantage of the present invention is that it provides a driving device and a camera module, wherein the driving device includes an autofocus component and an optical image stabilization component, and the autofocus component and the optical image stabilization component are set separately, which not only simplifies the structure, but also enables a large stabilization travel, thereby compensating for large shakes of the camera module.

[0008] Another advantage of the present invention is that it provides a driving device and a camera module, wherein the driving device includes a focusing magnet and a stabilizing magnet, wherein the focusing magnet and the stabilizing magnet are located around a motor to avoid magnetic interference.

[0009] Another advantage of the present invention is that it provides a driving device and a camera module, wherein the driving device enables lens focusing and chip-based image stabilization to be combined, which simplifies the motor structure and increases the image stabilization stroke of the camera module, thereby compensating for larger shakes in the camera module.

[0010] Another advantage of the present invention is that it provides a driving device and a camera module, wherein the image stabilization of the driving device adopts a single-layer ball bearing design, which uses the ball bearing to maintain the distance between the movable part and the fixed part and reduces the friction between the movable part and the fixed part.

[0011] Another advantage of the present invention is that it provides a driving device and a camera module, wherein the image stabilization component of the driving device drives the photosensitive chip to move on a plane perpendicular to the optical axis of the lens and rotate around the optical axis of the lens, realizing multiple degrees of freedom of movement to compensate for image blur caused by shaking, which is beneficial to improving image quality.

[0012] Other advantages and features of the invention will be fully apparent from the following detailed description and may be achieved by combinations of the means and apparatus specifically pointed out in the appended claims.

[0013] According to one aspect of the present invention, a driving device of the present invention, capable of achieving the foregoing and other objects and advantages, is adapted to a camera module, wherein the camera module further includes a lens and an imaging assembly, comprising:

[0014] An autofocus assembly, wherein the autofocus assembly includes a focusing base, a focusing actuator, and a fixed base, wherein the focusing actuator includes at least a pair of focusing coils and at least a pair of focusing magnets, the focusing magnets being disposed on an outer side wall of the focusing base, the focusing coils being supported by the fixed base and corresponding to the focusing magnets, so that when the focusing coils are energized, the focusing base drives the lens to move along an optical axis of the lens; and

[0015] An optical image stabilization assembly, wherein the optical image stabilization assembly includes a shake compensation base and a shake compensation actuator, the shake compensation actuator includes at least one shake compensation coil and at least one shake compensation magnet, wherein the shake compensation magnet is supported at the bottom of the fixed base, the shake compensation coil is disposed on the shake compensation base and corresponds to the shake compensation magnet, so that when the shake compensation coil is energized, the shake compensation base drives the imaging assembly to move.

[0016] According to at least one embodiment of the present invention, the focusing actuator further includes a focusing substrate, wherein the focusing coil is electrically connected to the focusing substrate, thereby the focusing substrate electrically connects the focusing coil to the imaging assembly.

[0017] According to at least one embodiment of the present invention, the fixed base includes a base plate and at least one supporting sidewall integrally extending upward from the outer side of the base plate. The fixed base further includes an actuator mounting portion, wherein the actuator mounting portion is formed on the supporting sidewall, the focusing coil is disposed on the actuator mounting portion of the fixed base, and wherein the focusing substrate is attached to the supporting sidewall.

[0018] According to at least one embodiment of the present invention, the autofocus assembly further includes at least one focusing ball unit, and at least one ball groove is provided between the focusing base and the fixed base, wherein the focusing ball unit is disposed in the ball groove, the focusing ball unit supports and maintains the distance between the focusing base and the fixed base, and provides the focusing base with respect to the fixed base for movement along the optical axis.

[0019] According to at least one embodiment of the present invention, the jitter compensation actuator further includes a jitter compensation substrate, wherein the jitter compensation substrate is electrically connected to the jitter compensation coil of the jitter compensation actuator.

[0020] According to at least one embodiment of the present invention, the shake compensation magnet further includes three shake compensation magnet groups, wherein the vertical plane in which the first shake compensation magnet group is located is opposite to the vertical plane in which the focusing magnet is located, the vertical plane in which the second shake compensation magnet group is located is opposite to the vertical plane in which the third shake compensation magnet group is located, and is located on both sides of the first shake compensation magnet group.

[0021] According to at least one embodiment of the present invention, the jitter compensation coil is disposed on the jitter compensation substrate, wherein the jitter compensation substrate is disposed on the upper surface of the jitter compensation base along a direction perpendicular to the optical axis.

[0022] According to at least one embodiment of the present invention, the jitter compensation coil further includes a first jitter compensation coil unit, a second jitter compensation coil unit, a third jitter compensation coil unit, a fourth jitter compensation coil unit, and a fifth jitter compensation coil unit. The first jitter compensation coil unit is disposed on the side facing the first jitter compensation magnetic group, the second jitter compensation coil unit and the third jitter compensation coil unit are disposed on the side facing the second jitter compensation magnetic group, and the fourth jitter compensation coil unit and the fifth jitter compensation coil unit are disposed on the side facing the third jitter compensation magnetic group.

[0023] According to at least one embodiment of the present invention, the optical image stabilization assembly further includes at least one jitter magnetic sensing element, wherein the jitter magnetic sensing element is electrically connected to the jitter compensation substrate, and the jitter magnetic sensing element and the jitter compensation magnetic assembly are disposed face-to-face.

[0024] According to at least one embodiment of the present invention, the optical image stabilization assembly further includes at least one image stabilization ball, wherein the image stabilization ball is disposed between the shake compensation base and the fixed base, and is used to support and maintain the distance between the shake compensation base and the fixed base.

[0025] According to at least one embodiment of the present invention, an outer frame is further included, wherein the outer frame further includes a housing and a bottom frame, the housing being fixed to the upper end of the fixed base, the bottom frame being fixed to the lower end of the fixed base, and a protective space being formed by the housing and the bottom frame, wherein the autofocus assembly and the optical image stabilization assembly are held in the protective space of the outer frame.

[0026] According to at least one embodiment of the present invention, the jitter compensation coil further includes a sixth jitter compensation coil unit, wherein the first jitter compensation coil unit and the sixth jitter compensation coil unit are disposed on the same side of the jitter compensation base.

[0027] According to at least one embodiment of the present invention, the autofocus assembly further includes a pair of focusing magnetic yokes, wherein the focusing magnetic yokes are disposed on the focusing substrate and located on the opposite side of the focusing coil, and the optical image stabilization assembly further includes at least one image stabilization magnetic yoke, wherein the image stabilization magnetic yoke is disposed on the shake compensation base and located on the opposite side of the shake compensation coil.

[0028] According to at least one embodiment of the present invention, the autofocus assembly further includes at least one focus reset member, one end of the focus reset member being fixed to the focus base, and the other end of the focus reset member being fixed to the fixed base; the optical image stabilization assembly further includes at least one image stabilization reset member, one end of the image stabilization reset member being fixed to the shake compensation base, and the other end of the image stabilization reset member being fixed to the fixed base.

[0029] According to at least one embodiment of the present invention, the outer frame of the drive device further includes at least one frame ball, wherein the frame ball is disposed between the bottom frame and the jitter compensation base so as to reduce the friction between the bottom frame and the jitter compensation base by the frame ball.

[0030] According to another aspect of the present invention, the present invention further provides a camera module, comprising:

[0031] A driving device; and

[0032] An imaging assembly and a lens, wherein the lens and the imaging assembly are movably disposed on the driving device, the driving device driving the lens to move along an optical axis of the lens, and driving the imaging assembly to rotate along a direction perpendicular to and / or about the optical axis; wherein the driving device further comprises:

[0033] An autofocus assembly, wherein the autofocus assembly includes a focusing base, a focusing actuator, and a fixed base, wherein the focusing actuator includes at least a pair of focusing coils and at least a pair of focusing magnets, the focusing magnets being disposed on an outer side wall of the focusing base, the focusing coils being supported by the fixed base and corresponding to the focusing magnets, so that when the focusing coils are energized, the focusing base drives the lens to move along an optical axis of the lens; and

[0034] An optical image stabilization assembly, wherein the optical image stabilization assembly includes a shake compensation base and a shake compensation actuator, the shake compensation actuator includes at least one shake compensation coil and at least one shake compensation magnet, wherein the shake compensation magnet is supported at the bottom of the fixed base, the shake compensation coil is disposed on the shake compensation base and corresponds to the shake compensation magnet, so that when the shake compensation coil is energized, the shake compensation base drives the imaging assembly to move.

[0035] According to at least one embodiment of the present invention, the imaging component includes a filter component and a circuit board component, wherein the circuit board component is disposed below the filter component along the optical axis direction, the filter component of the imaging component is fixed to the optical image stabilization component, and the optical image stabilization component drives the filter component and the circuit board component of the imaging component.

[0036] According to at least one embodiment of the present invention, the filter assembly includes a filter holder and at least one filter mounted on the filter holder. The circuit board assembly includes a circuit board, at least one photosensitive chip mounted on the surface of the circuit board, and at least one electronic component, wherein the electronic component is located outside the photosensitive chip.

[0037] According to at least one embodiment of the present invention, the jitter compensation base further includes a support leg, wherein the support leg extends integrally downward from the base body and is connected to the imaging component.

[0038] According to at least one embodiment of the present invention, the camera module further includes a first connecting strip and a second connecting strip, wherein the focusing substrate is electrically connected to the imaging component by the first connecting strip, and the shake compensation substrate is electrically connected to the imaging component by the second connecting strip.

[0039] According to at least one embodiment of the present invention, the first connecting strip and the second connecting strip are flexible circuit boards.

[0040] According to at least one embodiment of the present invention, the focusing substrate and the shake compensation substrate are separate structures, and the focusing substrate is vertical and the shake compensation substrate is horizontal.

[0041] According to one aspect of the invention, the invention further provides a driving device adapted for a camera module, wherein the camera module further includes a lens and an imaging assembly, comprising:

[0042] An autofocus assembly, comprising a focusing base, a focusing brake, and a fixed base, wherein the focusing brake includes at least one pair of focusing coils and at least one pair of focusing magnets, the focusing coils being disposed on a side wall of the fixed base, and the focusing magnets being disposed on the focusing base and corresponding to the focusing coils, so that when the focusing coils are energized, the focusing base drives the lens to move along an optical axis of the lens; and

[0043] An optical image stabilization assembly includes a shake compensation base and a shake compensation actuator. The shake compensation actuator includes at least one shake compensation coil and at least one shake compensation magnet. The shake compensation magnet is disposed on the inner sidewall of the shake compensation base. The shake compensation coil is supported by the fixed base and corresponds to the shake compensation magnet, so that when the shake compensation coil is energized, the shake compensation coil drives the shake compensation magnet, and the shake compensation magnet drives the imaging assembly to compensate for shake.

[0044] According to at least one embodiment of the present invention, the focusing actuator further includes a focusing substrate, wherein the focusing coil is electrically connected to the focusing substrate, and wherein the focusing substrate is disposed on an outer side wall of the fixed base.

[0045] According to at least one embodiment of the present invention, the fixed base includes a base plate and at least one supporting sidewall integrally extending upward from the outer side of the base plate. The fixed base further includes an actuator mounting portion, wherein the actuator mounting portion is formed on the supporting sidewall, the focusing coil is disposed on the actuator mounting portion of the fixed base, and wherein the focusing substrate is attached to the supporting sidewall.

[0046] According to at least one embodiment of the present invention, the autofocus assembly further includes at least one focusing ball unit, and at least one ball groove is provided between the focusing base and the fixed base, wherein the focusing ball unit is disposed in the ball groove, the focusing ball unit supports and maintains the distance between the focusing base and the fixed base, and provides the focusing base with respect to the fixed base for movement along the optical axis.

[0047] According to at least one embodiment of the present invention, the jitter compensation actuator further includes a jitter compensation substrate, wherein the jitter compensation substrate is electrically connected to the jitter compensation coil of the jitter compensation actuator.

[0048] According to at least one embodiment of the present invention, the fixed base has a first outer side wall, a second outer side wall, a third outer side wall and a fourth outer side wall, wherein the focusing coil is disposed on the first outer side wall of the fixed base, and the shake compensation substrate is disposed on the second outer side wall, the third outer side wall and the fourth outer side wall of the fixed base.

[0049] According to at least one embodiment of the present invention, the shake compensation coil and the focusing coil are located on the same horizontal plane.

[0050] According to at least one embodiment of the present invention, the jitter compensation magnet further includes three jitter compensation magnet groups, wherein the first jitter compensation magnet group faces the second outer side wall of the fixed base, the second jitter compensation magnet group faces the third outer side wall of the fixed base, and the third jitter compensation magnet group faces the fourth outer side wall of the fixed base.

[0051] According to at least one embodiment of the present invention, the jitter compensation coil further includes a first jitter compensation coil unit, a second jitter compensation coil unit, a third jitter compensation coil unit, a fourth jitter compensation coil unit, and a fifth jitter compensation coil unit. The first jitter compensation coil unit is disposed on the side facing the first jitter compensation magnetic group, the second jitter compensation coil unit and the third jitter compensation coil unit are disposed on the side facing the second jitter compensation magnetic group, and the fourth jitter compensation coil unit and the fifth jitter compensation coil unit are disposed on the side facing the third jitter compensation magnetic group.

[0052] According to at least one embodiment of the present invention, the jitter compensation coil further includes a sixth jitter compensation coil unit, wherein the first jitter compensation coil unit and the sixth jitter compensation coil unit are disposed on the same side of the fixed base.

[0053] According to at least one embodiment of the present invention, the optical image stabilization assembly further includes at least one image stabilization ball, wherein the image stabilization ball is disposed between the shake compensation base and the fixed base, and is used to support and maintain the distance between the shake compensation base and the fixed base.

[0054] According to at least one embodiment of the present invention, an outer frame is further included, wherein the outer frame further includes a housing and a bottom frame, the housing being fixed to the upper end of the fixed base, the bottom frame being fixed to the lower end of the fixed base, and a protective space being formed by the housing and the bottom frame, wherein the autofocus assembly and the optical image stabilization assembly are held in the protective space of the outer frame.

[0055] According to at least one embodiment of the present invention, the outer frame of the drive device further includes at least one frame ball, wherein the frame ball is disposed between the bottom frame and the jitter compensation base so as to reduce the friction between the bottom frame and the jitter compensation base by the frame ball.

[0056] According to at least one embodiment of the present invention, the jitter compensation substrate and the focusing substrate are flexible circuit boards.

[0057] According to another aspect of the present invention, the present invention further provides a camera module, comprising:

[0058] A driving device; and

[0059] A lens and an imaging assembly, wherein the lens and the imaging assembly are movably disposed on the driving device, the driving device driving the lens to move along an optical axis of the lens, and driving the imaging assembly to rotate along a direction perpendicular to and / or about the optical axis; wherein the driving device further comprises:

[0060] An autofocus assembly, comprising a focusing base, a focusing brake, and a fixed base, wherein the focusing brake includes at least one pair of focusing coils and at least one pair of focusing magnets, the focusing coils being disposed on a side wall of the fixed base, and the focusing magnets being disposed on the focusing base and corresponding to the focusing coils, so that when the focusing coils are energized, the focusing base drives the lens to move along an optical axis of the lens; and

[0061] An optical image stabilization assembly includes a shake compensation base and a shake compensation actuator. The shake compensation actuator includes at least one shake compensation coil and at least one shake compensation magnet. The shake compensation magnet is disposed on the inner sidewall of the shake compensation base. The shake compensation coil is supported by the fixed base and corresponds to the shake compensation magnet, so that when the shake compensation coil is energized, the shake compensation coil drives the shake compensation magnet, and the shake compensation magnet drives the imaging assembly to compensate for shake.

[0062] According to at least one embodiment of the present invention, the imaging component includes a filter component and a circuit board component, wherein the circuit board component is disposed below the filter component along the optical axis direction, the filter component of the imaging component is fixed to the optical image stabilization component, and the optical image stabilization component drives the filter component and the circuit board component of the imaging component.

[0063] According to at least one embodiment of the present invention, the filter assembly includes a filter holder and at least one filter mounted on the filter holder. The circuit board assembly includes a circuit board, at least one photosensitive chip mounted on the surface of the circuit board, and at least one electronic component, wherein the electronic component is located outside the photosensitive chip.

[0064] According to at least one embodiment of the present invention, the circuit board is tractably connected to the image stabilization compensation base of the optical image stabilization assembly, and the image stabilization compensation base drives the circuit board of the imaging assembly to move or rotate in a specific direction.

[0065] According to at least one embodiment of the present invention, the focusing substrate and the shake compensation substrate are separate structures, and the focusing substrate and the shake compensation substrate are both vertical structures.

[0066] According to at least one embodiment of the present invention, the camera module further includes a first connecting strip and a second connecting strip, wherein the first connecting strip is electrically connected to the focusing substrate to the imaging component, and the second connecting strip is electrically connected to the image stabilization compensation substrate to the imaging component.

[0067] According to at least one embodiment of the present invention, the first connecting strip and the second connecting strip are flexible circuit boards.

[0068] The further objects and advantages of the invention will become fully apparent from the following description and accompanying drawings.

[0069] These and other objects, features and advantages of the present invention will be fully realized through the following detailed description, the accompanying drawings and the claims. Attached Figure Description

[0070] Figure 1 This is an exploded view of a driving device according to a preferred embodiment of the present invention.

[0071] Figure 2 This is a cross-sectional schematic diagram of the driving device according to the preferred embodiment of the present invention along the direction perpendicular to the optical axis.

[0072] Figure 3 This is a cross-sectional schematic diagram of the driving device according to the preferred embodiment of the present invention along the optical axis.

[0073] Figure 4 This is another cross-sectional view of the driving device according to the preferred embodiment of the present invention along the optical axis.

[0074] Figure 5 This is a schematic diagram of the structure of a jitter compensation actuator of the driving device according to the preferred embodiment of the present invention.

[0075] Figure 6 This is a structural schematic diagram of the jitter compensation actuator of the driving device according to the preferred embodiment of the present invention from another perspective.

[0076] Figure 7 This is a schematic diagram of the drive device according to the preferred embodiment of the present invention compensating for movement in the X-axis direction.

[0077] Figure 8 This is a schematic diagram of the drive device according to the preferred embodiment of the present invention compensating for movement in the Y-axis direction.

[0078] Figure 9 This is a schematic diagram of the drive device according to the preferred embodiment of the present invention compensating for the rotation of the optical axis.

[0079] Figure 10 This is a schematic diagram of the external frame structure of the drive device according to the preferred embodiment of the present invention.

[0080] Figure 11 This is a schematic diagram of a drive device according to another preferred embodiment of the present invention compensating for movement in the X-axis direction.

[0081] Figure 12 This is a schematic diagram of the drive device according to the preferred embodiment of the present invention compensating for the rotation of the optical axis.

[0082] Figure 13 This is a cross-sectional schematic diagram of a driving device according to another preferred embodiment of the present invention along the optical axis.

[0083] Figure 14 This is a cross-sectional schematic diagram of a driving device according to another preferred embodiment of the present invention along the optical axis.

[0084] Figure 15 This is a cross-sectional schematic diagram of a driving device according to another preferred embodiment of the present invention along the optical axis.

[0085] Figure 16 This is a cross-sectional schematic diagram of a camera module along the optical axis according to a preferred embodiment of the present invention.

[0086] Figure 17 This is another cross-sectional view of the camera module according to the preferred embodiment of the present invention along the optical axis.

[0087] Figure 18 This is another cross-sectional view of a camera module along the optical axis according to a preferred embodiment of the present invention.

[0088] Figure 19This is a schematic diagram of a conduction mode of a driving device according to a preferred embodiment of the present invention.

[0089] Figure 20 This is a schematic diagram of a driving device according to a second preferred embodiment of the present invention.

[0090] Figure 21 This is a cross-sectional schematic diagram of the driving device according to the preferred embodiment of the present invention along the optical axis.

[0091] Figure 22 This is a schematic cross-sectional view of an autofocus component of the driving device according to the preferred embodiment of the present invention, along the direction perpendicular to the optical axis.

[0092] Figure 23 This is another cross-sectional view of the driving device according to the preferred embodiment of the present invention along the optical axis.

[0093] Figure 24 This is a schematic diagram of the drive device according to the preferred embodiment of the present invention compensating for movement in the X-axis direction.

[0094] Figure 25 This is a schematic diagram of the drive device according to the preferred embodiment of the present invention compensating for movement in the Y-axis direction.

[0095] Figure 26 This is a schematic diagram of the drive device according to the preferred embodiment of the present invention compensating for the rotation of the optical axis.

[0096] Figure 27 This is a schematic diagram of the external frame structure of the drive device according to the preferred embodiment of the present invention.

[0097] Figure 28 This is a schematic diagram of a drive device according to another preferred embodiment of the present invention compensating for movement in the X-axis direction.

[0098] Figure 29 This is a schematic diagram of the drive device according to the preferred embodiment of the present invention compensating for the rotation of the optical axis.

[0099] Figure 30 This is a cross-sectional schematic diagram of a camera module along the optical axis according to a preferred embodiment of the present invention.

[0100] Figure 31 This is another cross-sectional view of the camera module according to the preferred embodiment of the present invention along the optical axis.

[0101] Figure 32 This is another cross-sectional view of the camera module according to the preferred embodiment of the present invention along the optical axis.

[0102] Figure 33 This is a schematic diagram of a conduction method of a camera module according to a preferred embodiment of the present invention.

[0103] Figure 34 This is another cross-sectional view of the camera module according to the preferred embodiment of the present invention along the optical axis. Detailed Implementation

[0104] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0105] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0106] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0107] Referring to the accompanying drawings of this invention Figures 1 to 10 As shown, a driving device according to a first preferred embodiment of the present invention is described below. The driving device is adapted to a lens, driving a lens of a camera module and / or moving an imaging component of a camera module based on an optical axis O of the lens. The driving device has optical image stabilization and autofocus functions. The driving device includes an autofocus component 10 and an optical image stabilization component 20. The autofocus component 10 moves the lens body along the optical axis to achieve autofocus, and the optical image stabilization component 20 moves the imaging component in a direction perpendicular to the optical axis and / or rotates it about the lens's optical axis to achieve optical image stabilization.

[0108] It is worth mentioning that, in this preferred embodiment of the present invention, the optical image stabilization function and the autofocus function of the driving device are set separately, which not only simplifies the structure but also enables a larger image stabilization travel, thereby compensating for larger shakes in the camera module.

[0109] In detail, the autofocus assembly 10 includes a focusing base 11 and a focusing actuator 12. The lens of the camera module is disposed on the focusing base 11, and the focusing base 11 is tractably connected to the focusing actuator 12, which drives the focusing base 11 to move. The focusing base 11 is driven by the focusing actuator 12, thereby causing the lens to move along the optical axis to achieve optical focusing.

[0110] The lens of the camera module is mounted to the focusing base by means of adhesive, clips, or threads. Preferably, the lens and the focusing base 11 are an integral structure, that is, the focusing base 11 is also a lens barrel of the lens, and the optical elements of the lens, such as optical lenses, are disposed on the focusing base 11. The focusing base 11 can also serve as a carrier to move the lens to achieve autofocus. Those skilled in the art will understand that an integral structure can reduce the size of the lens barrel and the gap between the lens barrel and the carrier, thus achieving the beneficial effect of reducing the size of the camera module.

[0111] The focusing base 11 has a lens aperture 110, wherein the lens is disposed in the lens aperture 110 of the focusing base 11, or the optical components of the lens are disposed in the lens aperture 110 of the focusing base 11.

[0112] like Figure 2 As shown, the focusing actuator 12 includes at least one pair of focusing coils 121 and at least one pair of focusing magnets 122, wherein the at least one pair of focusing magnets 122 are disposed on an outer side wall of the focusing base 11, wherein the focusing coils 121 and the focusing magnets 122 are positioned opposite each other, and when the focusing coils 121 are energized, a Lorentz force is generated between the focusing coils 121 and the focusing magnets 122 along the optical axis, driving the focusing base 11 to move the lens along the optical axis, thereby achieving optical focusing.

[0113] It is worth mentioning that, in this preferred embodiment of the present invention, the focusing magnet 122 of the focusing actuator 12 is embedded in an outer side wall of the focusing base 11, or the focusing magnet 122 is attached to the outer side wall of the focusing base 11. The method in which the focusing magnet 122 is fixed is not limited here.

[0114] It is worth mentioning that the focusing magnet 122 of the focusing actuator 12 can also be embedded or attached to an inner side wall of the focusing base 11, that is, the focusing magnet 122 of the focusing actuator 12 can also be embedded or attached to a side wall of the focusing base 11, so that the focusing magnet 122 and the focusing coil 121 are positioned opposite each other.

[0115] The focusing actuator 12 further includes a focusing substrate 123, wherein the focusing substrate 123 is electrically connected to the focusing coil 121, and the focusing substrate 123 electrically conducts the focusing coil 121 of the focusing actuator 12. Preferably, in this preferred embodiment of the present invention, the focusing substrate 123 of the focusing actuator 12 is a flexible printed circuit board (FPC).

[0116] The focusing magnet 122 is a group of magnets, and the focusing magnet 122 is a magnet with N pole and S pole. The number of the magnets can be one or more.

[0117] The focusing actuator 12 further includes at least one pair of focusing magnetic sensing elements 124, wherein the focusing magnetic sensing elements 124 are opposite to the focusing magnet 122, and the focusing magnetic sensing elements 124 sense the position of the focusing magnet 122 and feed back the magnetic field change caused by the position change of the focusing magnet 122. Preferably, in this preferred embodiment of the present invention, the focusing magnetic sensing element 124 is a Hall element, wherein the focusing magnetic sensing element 124 is disposed on the focusing substrate 123. Optionally, in this preferred embodiment of the present invention, the focusing magnetic sensing element 124 is a circuit module built into the focusing substrate 123.

[0118] The focusing magnetic sensing element 124 is electrically connected to the focusing substrate 123. When autofocusing is performed, the focusing magnet 122 moves along the optical axis with the lens, while the focusing magnetic sensing element 124 remains stationary. The up-and-down movement of the focusing magnet 122 causes a change in the magnetic field near the focusing magnetic sensing element 124. The focusing magnetic sensing element 124 senses this change and feeds it back to the driving circuit of the focusing substrate 123 to adjust the input current, so that the entire structure forms a closed-loop system, thereby quickly and accurately realizing the autofocus function.

[0119] like Figures 1 to 3As shown, the autofocus assembly 10 further includes a fixed base 13, wherein the focusing base 11 and the focusing actuator 12 are disposed on the fixed base 13. The fixed base 13 has a focusing cavity 130, wherein the focusing base 11 and the focusing magnet 122 of the focusing actuator 12 are movably disposed in the focusing cavity 130 of the fixed base 13 along the optical axis. The focusing coil 121 and the focusing base plate 123 of the focusing actuator 12 are fixed to the fixed base 13, wherein the focusing coil 121 is supported by the fixed base 13 and generates a magnetic force to drive the focusing magnet 122 to move.

[0120] The fixed base 13 is a hollow structure that is interconnected along the optical axis. The fixed base 13 includes a base plate 131 and at least one supporting sidewall 132 integrally extending upward from the outer side of the base plate 131. The focusing coil 121 and the focusing substrate 123 of the focusing actuator 12 are disposed on the supporting sidewall 132 of the fixed base 13. The base plate 131 and the supporting sidewall 132 of the fixed base 13 are perpendicular to each other, meaning they are perpendicular at 90° or their perpendicularity tolerance is within 3°.

[0121] The fixed base 13 is further provided with at least one actuator mounting portion 133, wherein the focusing coil 121 and the focusing substrate 123 of the focusing actuator 12 are fixed to the actuator mounting portion 133 of the fixed base 13, and the focusing coil 121 and the focusing substrate 123 of the focusing actuator 12 are fixed and supported by the actuator mounting portion 133.

[0122] Preferably, the actuator mounting portion 133 is a groove formed in the support sidewall 132 of the fixed base 13, wherein the position of the actuator mounting portion 133 is directly opposite the position of the focusing magnet 122 of the focusing actuator 12. Optionally, the actuator mounting portion 133 is a through hole formed in the support sidewall 132 of the fixed base 13, wherein the focusing coil 121 is mounted in the actuator mounting portion 133.

[0123] Preferably, the focusing substrate 123 of the focusing actuator 12 is attached to the outer side of the support sidewall 132 of the fixed base 13. It is worth noting that the focusing coil 121 is disposed in the actuator mounting portion 133 formed in the support sidewall 132, allowing the focusing substrate 123 to be attached more smoothly to the outer sidewall of the fixed base 13, preventing it from falling off due to the protrusion of the focusing coil 121.

[0124] It is worth mentioning that when the focusing coil 121 is energized, the magnetic field generated can interact with the magnetic field of the focusing magnet 122 to generate a driving force along the optical axis, thereby moving the lens along the optical axis to achieve autofocus.

[0125] The autofocus assembly 10 further includes at least one focusing ball unit 14, wherein the focusing ball unit 14 is disposed between the focusing base 11 and the fixed base 13. When the focusing substrate 123 of the focusing actuator 12 is energized, the focusing coil 121 and the focusing magnet 122 generate a force, and the generated driving force drives the focusing magnet 122 to move along the optical axis. The focusing ball unit 14 is used to reduce the resistance to the movement of the focusing base 11 and to support and maintain the distance between the focusing base 11 and the fixed base 13, so that the lens can move stably along the optical axis.

[0126] At least one ball bearing groove 101 is provided between the focusing base 11 and the fixed base 13, wherein the focusing ball bearing unit 14 of the autofocus assembly 10 is disposed in the ball bearing groove 101, and the focusing ball bearing unit 14 supports and maintains the distance between the focusing base 11 and the fixed base 13, and provides movement of the focusing base 11 relative to the fixed base 13 along the optical axis. The ball bearing groove 101 is disposed along the optical axis, and the ball bearing groove 101 is formed between the outer sidewall of the focusing base 11 and the inner sidewall of the fixed base 13.

[0127] Specifically, the outer wall of the focusing base 11 has at least one first track 111 along the Z-axis (optical axis direction), and the inner wall of the fixed base 13 has at least one second track 134 along the Z-axis (optical axis direction). The positions of the first track 111 and the second track 134 are opposite to each other. A ball bearing groove 101 is formed between the first track 111 of the focusing base 11 and the second track 134 of the fixed base 13 to provide movement of the focusing base relative to the fixed base along the optical axis (Z-axis direction). Since the ball bearing groove 101 is directionally defined, i.e., along the optical axis direction, the focusing ball bearing unit 14 can move along the Z-axis direction, making the lens movement direction more precise during autofocus.

[0128] Preferably, in this preferred embodiment of the invention, the number of ball bearing grooves 101 is two. When the ball bearing grooves 101 are formed on one side of the focusing magnet 122, the ball bearing grooves 101 are formed on both sides of the focusing magnet 122, so that the focusing base 11 moves more smoothly and does not tilt during autofocus. Optionally, in other alternative embodiments of the invention, the ball bearing grooves 101 are formed on other sidewalls of the focusing base 11 and the fixed base 13, which is not limited in this application.

[0129] The optical image stabilization (OIS) assembly 20 includes a shake compensation base 21 and a shake compensation actuator 22. The shake compensation base 21 is located below the fixed base 13, meaning the focusing base 11 and the fixed base 13 are both located above the shake compensation base 21. During OIS operation, the shake compensation base 21 moves relative to the fixed base 13 to achieve optical image stabilization of the lens. Notably, the movement of the OIS assembly 20 along or around the optical axis can facilitate a larger OIS travel, including XOY and RZ direction compensation. Furthermore, the shake compensation base 21 of the OIS assembly 20 is transversely connected to an imaging component of the camera module. When the camera module requires shake compensation, the shake compensation base 21 of the OIS assembly 20 drives the imaging component of the camera module to compensate along the XOY and RZ directions.

[0130] The jitter compensation actuator 22 further includes at least one jitter compensation coil 221 and at least one jitter compensation magnet 222, wherein the jitter compensation magnet 222 is disposed at the lower end of the fixed base 13, the jitter compensation coil 221 is disposed on the jitter compensation base 21, and the jitter compensation coil 221 and the jitter compensation magnet 222 are positioned opposite each other. When the jitter compensation coil 221 of the jitter compensation actuator 22 is energized, a Lorentz force is generated between the jitter compensation coil 221 and the jitter compensation magnet 222, which rotates perpendicular to and / or around the optical axis. This force drives the jitter compensation base 21 to move an imaging component of the camera module along the direction perpendicular to the optical axis and / or rotate around the optical axis, thereby achieving optical image stabilization.

[0131] The jitter compensation actuator 22 further includes a jitter compensation substrate 223, wherein the jitter compensation substrate 223 is electrically connected to the jitter compensation coil 221 of the jitter compensation actuator 22. The jitter compensation coil 221 of the jitter compensation actuator 22 is electrically connected to the imaging component through the jitter compensation substrate 223.

[0132] The jitter compensation magnet 222 further includes three jitter compensation magnet groups 2221, namely a first jitter compensation magnet group 2221a, a second jitter compensation magnet group 2221b, and a third jitter compensation magnet group 2221c, wherein each of the jitter compensation magnet groups (2221a, 2221b, and 2221c) is a magnet with N poles and S poles, and the number of the magnets can be one or more.

[0133] Preferably, the three-axis jitter compensation magnetic assembly 2221 and the focusing magnet 122 are not in the same plane. The three-axis jitter compensation magnetic assembly 2221 is disposed on the other three sides of the focusing base 11 relative to the side where the focusing magnet 122 is located. That is, the vertical planes containing the jitter compensation magnetic assembly 2221 and the focusing magnet 122 are respectively located on the four sides of the fixed base 13. Alternatively, the axes of the north and south poles of the focusing magnet 122 are perpendicular to the axes of the north and south poles of the jitter compensation magnetic assembly 2221. Perpendicularity means that they are perpendicular to each other by 90° or the perpendicularity tolerance between them is within 3°.

[0134] In a plane perpendicular to the optical axis (i.e., the XOY direction), the first shake compensation magnetic group 2221a is located on the bottom surface of the fixed base 13 along the X-axis, and the second shake compensation magnetic group 2221b and the third shake compensation magnetic group 2221c are located on the bottom surface of the fixed base 13 along the Y-axis. That is, the first shake compensation magnetic group 2221a is used for image stabilization in the X-axis direction, and the second shake compensation magnetic group 2221b and the third shake compensation magnetic group 2221c are used for image stabilization in the Y-axis and RZ directions. Specifically, the first shake compensation magnetic group 2221a, the second shake compensation magnetic group 2221b, and the third shake compensation magnetic group 2221c are located on the three sides of the bottom surface of the fixed base 13, respectively. Compared to the focusing magnet 122, which is disposed on the side wall of the focusing base 11, the distance between the shake compensation magnetic group 2221 and the focusing magnet 122 is greater, resulting in less magnetic interference between them.

[0135] The vertical plane containing the first shake compensation magnetic group 2221a is opposite to the vertical plane containing the focusing magnet 122, and the vertical plane containing the second shake compensation magnetic group 2221b is opposite to the vertical plane containing the third shake compensation magnetic group 2221c. In other words, the three shake compensation magnetic groups 2221 and the focusing magnet 122 are respectively positioned on the four non-intersecting sides of the driving device. This arrangement ensures that the optical image stabilization component 20 and the autofocus component 10 do not interfere with each other, thus avoiding any impact on imaging accuracy during optical image stabilization and / or autofocus.

[0136] In other words, the magnetic field generated by the shake compensation magnetic assembly 2221 will not affect the magnetic field generated by the autofocus magnet 122, and will not cause magnetic interference during optical image stabilization and autofocus, thus avoiding affecting the lens's imaging accuracy when the lens is performing optical image stabilization and / or autofocus. That is to say, when the lens moves along the X, Y, and / or RZ directions, it will not cause the lens to shift along the Z-axis; and when the lens moves along the Z-axis, it will not cause the lens to shift in the X, Y, and / or RZ directions.

[0137] Preferably, the shake compensation substrate 223 is implemented as a flexible printed circuit board (FPC), wherein the shake compensation coil 221 is disposed on the shake compensation substrate 223, and the shake compensation coil 221 is disposed opposite to the shake compensation magnetic assembly 2221. When the shake compensation coil 221 is energized, a Lorentz force is generated between the shake compensation coil 221 and the shake compensation magnetic assembly 2221, which rotates perpendicular to and / or around the optical axis. This drives the shake compensation base 21 to move the imaging component of the camera module along the direction perpendicular to the optical axis and / or rotate around the lens optical axis, thereby achieving optical image stabilization.

[0138] It is worth mentioning that, in this preferred embodiment of the present invention, the shake compensation substrate 223 is disposed on the upper surface of the shake compensation base 21 along a direction perpendicular to the optical axis. The shake compensation substrate 223 transmits the force between the shake compensation coil 221 and the shake compensation magnet 222 to the shake compensation base 21, and then the shake compensation base 21 drives or drives the imaging component to move along a direction perpendicular to the optical axis and / or rotate around the lens optical axis, thereby achieving optical image stabilization.

[0139] The jitter compensation coil 221 further includes a first jitter compensation coil unit 2211, a second jitter compensation coil unit 2212, a third jitter compensation coil unit 2213, a fourth jitter compensation coil unit 2214, and a fifth jitter compensation coil unit 2215. The first jitter compensation coil unit 2211, the second jitter compensation coil unit 2212, the third jitter compensation coil unit 2213, the fourth jitter compensation coil unit 2214, and the fifth jitter compensation coil unit 2215 are disposed on the upper surface of the jitter compensation base 21, and each of the jitter compensation coil units faces the jitter compensation magnetic assembly 2221.

[0140] The first jitter compensation coil unit 2211 is disposed on the side opposite to the first jitter compensation magnetic group 2221a. When the first jitter compensation coil unit 2211 is energized, the magnetic force between the first jitter compensation coil unit 2211 and the first jitter compensation magnetic group is used for jitter stabilization in the X-axis direction. The second jitter compensation coil unit 2212, the third jitter compensation coil unit 2213, the fourth jitter compensation coil unit 2214, and the fifth jitter compensation coil unit 2215 are disposed on the two sides adjacent to the first jitter compensation coil unit 2211. When the second jitter compensation coil unit 2212, the third jitter compensation coil unit 2213, the fourth jitter compensation coil unit 2214, and the fifth jitter compensation coil unit 2215 are energized, the magnetic force between them and the second jitter compensation magnetic group 2221b and the third jitter compensation magnetic group 2221c is used for jitter stabilization in the Y-axis and RZ directions.

[0141] It is worth mentioning that, in this preferred embodiment of the present invention, the second jitter compensation coil unit 2212 and the fourth jitter compensation coil unit 2214 are arranged opposite each other in the positive direction of the X-axis; the third jitter compensation coil unit 2213 and the fifth jitter compensation coil unit 2215 are arranged opposite each other in the positive direction of the Y-axis. The second jitter compensation coil unit 2212 and the fifth jitter compensation coil unit 2215 are arranged diagonally on the plane containing the XOY axes; the third jitter compensation coil unit 2213 and the fourth jitter compensation coil unit 2214 are arranged diagonally on the plane containing the XOY axes.

[0142] Preferably, the second jitter compensation coil unit 2212 and the third jitter compensation coil unit 2213 are disposed on the side facing the second jitter compensation magnetic group 2221b, and the fourth jitter compensation coil unit 2214 and the fifth jitter compensation coil unit 2215 are disposed on the side facing the third jitter compensation magnetic group 2221c.

[0143] like Figure 7As shown, when the lens needs to compensate in the X-axis direction, that is, when it needs to control the imaging component to translate along the positive X-axis (e.g., along the right side of the X-axis), a clockwise current is supplied to the first shake compensation coil unit 2211. The first shake compensation coil unit 2211 interacts with the first shake compensation magnetic group 2221a, so that the first shake compensation coil unit 2211 receives a force along the positive X-axis provided by the first shake compensation magnetic group 2221a. This force, in turn, causes the first shake compensation coil unit 2211 to move the imaging component along the right side of the X-axis through the shake compensation base 21. Conversely, when a counterclockwise current is supplied to the first shake compensation coil unit 2211, the first shake compensation coil unit 2211 receives a force along the negative X-axis provided by the first shake compensation magnetic group 2221a. This force, in turn, causes the first shake compensation coil unit 2211 to move the imaging component along the left side of the X-axis through the shake compensation base 21, thus achieving optical image stabilization in the X-axis direction.

[0144] like Figure 8When the lens needs to compensate for the Y-axis direction, i.e., when the imaging component needs to be translated along the positive Y-axis, the second jitter compensation coil unit 2212 and the third jitter compensation coil unit 2213 are supplied with counterclockwise current, while the fourth jitter compensation coil unit 2214 and the fifth jitter compensation coil unit 2215 are supplied with clockwise current. The second jitter compensation coil unit 2212 and the third jitter compensation coil unit 2213 interact with the second jitter compensation magnetic group 2221b, causing the second jitter compensation coil unit 2212 and the third jitter compensation coil unit 2213 to experience a force along the positive Y-axis. The fourth jitter compensation coil unit 2214 and the fifth jitter compensation coil unit 2215 interact with the third jitter compensation magnetic group 2221c, causing the fourth jitter compensation coil unit 2214 and the fifth jitter compensation coil unit 2215 to experience a force along the positive Y-axis. In short, when the second jitter compensation coil unit 2212 and the third jitter compensation coil unit 2213 are supplied with counterclockwise current, and the fourth jitter compensation coil unit 2214 and the fifth jitter compensation coil unit 2215 are supplied with clockwise current, the jitter compensation coil 221 experiences a force along the positive Y-axis, and the jitter compensation coil 221 drives the imaging component to move along the positive Y-axis through the jitter compensation base 21. Conversely, when the second jitter compensation coil unit 2212 and the third jitter compensation coil unit 2213 are supplied with clockwise current, and the fourth jitter compensation coil unit 2214 and the fifth jitter compensation coil unit 2215 are supplied with counterclockwise current, the jitter compensation coil 221 experiences a force along the negative Y-axis, and the jitter compensation coil 221 drives the imaging component to move along the negative Y-axis through the jitter compensation base 21.

[0145] like Figure 9When the lens needs to compensate for optical axis rotation, specifically when the imaging assembly needs to be controlled to rotate clockwise (RZ) around the optical axis, the third shake compensation coil unit 2213 and the fourth shake compensation coil unit 2214 are supplied with clockwise current, while the second shake compensation coil unit 2212 and the fifth shake compensation coil unit 2215 are supplied with counterclockwise current. The third shake compensation coil unit 2213 and the fifth shake compensation coil unit 2215 are subjected to a negative force along the Y-axis; the second shake compensation coil unit 2212 and the fourth shake compensation coil unit 2214 are subjected to a positive force along the Y-axis. Therefore, the two sides of the shake compensation coil 221 are subjected to both positive and negative forces along the Y-axis, thus forming a clockwise torsional force. The shake compensation coil 221 drives the imaging assembly to rotate clockwise around the optical axis through the shake compensation base 21, achieving RZ-direction image stabilization. Conversely, the second jitter compensation coil unit 2212 and the fifth jitter compensation coil unit 2215 are supplied with clockwise current, while the third jitter compensation coil unit 2213 and the fourth jitter compensation coil unit 2214 are supplied with counterclockwise current. The third jitter compensation coil unit 2213 and the fifth jitter compensation coil unit 2215 are subjected to a positive force along the Y-axis; the second jitter compensation coil unit 2212 and the fourth jitter compensation coil unit 2214 are subjected to a negative force along the Y-axis, thereby forming a counterclockwise torsional force that drives the imaging component to rotate counterclockwise around the optical axis by the jitter compensation coil 221, achieving image stabilization in the RZ direction.

[0146] The optical image stabilization component 20 further includes at least one jitter magnetic sensing element 23, wherein the jitter magnetic sensing element 23 is electrically connected to the jitter compensation substrate 223, and the jitter magnetic sensing element 23 is disposed face-to-face with the jitter compensation magnetic assembly 222. Preferably, the jitter magnetic sensing element 23 is disposed on the jitter compensation substrate 223, and is used to sense the position of the jitter compensation magnetic assembly 222 and to provide feedback on the magnetic field change caused by the positional change of the jitter magnetic sensing element 223 relative to the jitter compensation magnetic assembly 222.

[0147] It is worth mentioning that during optical image stabilization, the jitter compensation coil 221 rotates along the direction perpendicular to and / or around the optical axis with the imaging component, while the jitter compensation magnetic group 222 remains stationary. The movement of the jitter compensation coil 221 causes a change in the magnetic field of the jitter magnetic sensing element 23 relative to the vicinity of the jitter compensation magnetic group 222. The jitter magnetic sensing element 23 senses this change and feeds it back to the drive circuit through the jitter compensation substrate 223, adjusting the input current. This forms a closed-loop system, enabling fast and accurate optical image stabilization.

[0148] Preferably, in this preferred embodiment of the invention, the jitter compensation magnetic group 222 is implemented as a Hall element.

[0149] The optical image stabilization assembly 20 further includes at least one stabilizing ball 24, wherein the stabilizing ball 24 is disposed between the shake compensation base 21 and the fixed base 13, and is used to support and maintain the distance between the shake compensation base 21 and the fixed base 13. The shake compensation base 21 includes a base body 211 and at least one ball receiving groove 212, wherein the ball receiving groove 212 has a recess, and the stabilizing ball 24 is disposed in the ball receiving groove 212 of the shake compensation base 21. It is worth mentioning that the receiving space of the ball receiving groove 24 is slightly larger than the ball diameter of the stabilizing ball 24, so as to allow the stabilizing ball 24 to roll in the ball receiving groove 212, and reduce the friction between the shake compensation base 21 and the fixed base 13 through the rolling friction of the stabilizing ball 24.

[0150] Preferably, in this preferred embodiment of the present invention, the optical image stabilization component 20 has four stabilization balls 24, and the number of ball receiving grooves 212 in the jitter compensation base 21 corresponds to the number of stabilization balls 24. Preferably, the ball receiving grooves 212 are located at the four corners of the base body 211 of the jitter compensation base 21.

[0151] The anti-shake ball 24 is supported between the upper side of the vibration compensation base 21 and the lower side of the fixed base 13, forming an anti-shake adjustment space 201. The anti-shake ball 24 supports and maintains the distance between the vibration compensation base 21 and the fixed base 13, and reduces the friction between the vibration compensation base 21 and the fixed base 13 by replacing sliding friction with rolling friction.

[0152] The fixed base 13 further includes at least one lower groove 135, wherein the lower groove 135 is formed on the lower surface of the fixed base 13 and is positively opposed to the ball receiving groove 212 of the jitter compensation base 21. The anti-shake ball 24 is constrained between the lower groove 135 and the ball receiving groove 212 of the fixed base 13. It is understood that the lower groove 135 and the ball receiving groove 212 together form the anti-shake adjustment space 201. It is understood that in this preferred embodiment of the invention, the fixed base 13 has four lower grooves 135, wherein the lower grooves 135 are positively opposed to the ball receiving groove 212 of the jitter compensation base 21, forming four anti-shake adjustment spaces 201 to provide the jitter compensation base 21 with respect to the fixed base 13 in a direction perpendicular to the optical axis and / or about the optical axis.

[0153] It is worth mentioning that the anti-shake adjustment space 201 is formed at the four corners of the shake compensation base 21 and the fixed base 13, which reduces the space occupied by the drive device. Furthermore, the supporting effect of the shake ball 24 can maintain a certain gap between the shake compensation magnetic group 222 and the shake compensation coil 221, thereby making the shake compensation base 21 move more smoothly.

[0154] It is worth mentioning that, in this preferred embodiment of the present invention, the focusing magnet 122 is disposed on the outer wall of the focusing base 11, wherein the focusing base 11 is located within the fixed base 13. The image stabilizing magnet 222 is disposed at the bottom of the fixed base 13, wherein the focusing magnet 122 and the image stabilizing magnet 222 are not on the same plane, which helps to reduce or even avoid magnetic interference. The autofocus assembly 10 drives the lens to move along the optical axis to achieve autofocus; the optical image stabilizing assembly 20 drives the imaging assembly to rotate along a direction perpendicular to the optical axis and / or around the optical axis to achieve optical image stabilization.

[0155] like Figure 10 As shown, the driving device further includes an external frame 30, wherein the autofocus assembly 10 and the optical image stabilization assembly 20 of the driving device are fixed to the external frame 30, and the external frame 30 protects the autofocus assembly 10 and the optical image stabilization assembly 20. The external frame 30 includes a housing 31 and a bottom frame 32, wherein the housing 31 and the bottom frame 32 are combined to form a protective space 301, wherein the autofocus assembly 10 and the optical image stabilization assembly 20 are supported by the external frame 30 in the protective space 301 to prevent the autofocus assembly 10 and the optical image stabilization assembly 20 from falling off and being damaged due to external impact.

[0156] It is worth mentioning that the outer frame 30 can be used to block electromagnetic waves generated by the camera module during operation, producing an electromagnetic shielding effect. If electromagnetic waves generated when driving the camera module are emitted to the outside or emitted to the outside of the camera module, the electromagnetic waves may affect other electronic components, which may lead to communication errors or malfunctions. In this preferred embodiment of the invention, the housing 31 can be made of a metallic material, and the housing 31 is grounded so that the housing 31 serves as an electromagnetic shield. Alternatively, the housing 31 can be made of a plastic material, with a conductive material coated on the plastic surface to block electromagnetic waves. This application does not limit the material of the housing. The housing 31 has an opening so that light passing through the lens can enter the imaging assembly for imaging.

[0157] Preferably, the outer shell 31 is fixed to the upper part of the fixed base 13, the bottom frame 32 is fixed to the lower part of the fixed base 13, and the bottom frame 32 includes a frame body 321 and four support corners 322 extending inward from the corners of the frame body 321. The optical image stabilization component 20 is supported on the support corners 322, so that the four bottom edges of the optical image stabilization component 20 can be linked with the imaging component. This not only increases the bonding area and makes the connection more secure, but also, relative to the imaging component being connected to the bottom frame 32, further reduces the height of the camera module.

[0158] It is worth mentioning that, in this embodiment, the stabilization travel along the direction perpendicular to the optical axis can reach ±301mm, the stabilization travel around the optical axis can reach ±1°, and the autofocus travel can reach ±500mm.

[0159] Referring to the accompanying drawings of this invention Figure 11 and Figure 12 As shown, a driving device according to another embodiment of the present invention will be described in the following description. Unlike the above embodiments, in this preferred embodiment of the present invention, the number of jitter compensation coils along the X-axis is two. When performing RZ-axis jitter compensation, the jitter compensation coils in the X-axis direction and the jitter compensation coils in the Y-axis direction can be energized simultaneously to achieve a larger RZ-axis jitter compensation effect.

[0160] In detail, the shake compensation coil 221 further includes a sixth shake compensation coil unit 2216, wherein the first shake compensation coil unit 2211 and the sixth shake compensation coil unit 2216 are disposed on the same side of the shake compensation base 21, that is, on the other side corresponding to the focusing coil 121. The first shake compensation coil unit 2211 and the sixth shake compensation coil unit 2216 are symmetrically arranged based on the X-axis direction.

[0161] like Figure 11 As shown, when the lens needs to compensate for the X-axis direction, that is, when it needs to control the imaging component to translate along the positive X-axis (to the right of the X-axis), a clockwise current is passed through the first jitter compensation coil unit 2211 and the sixth jitter compensation coil unit 2216. The first jitter compensation coil unit 2211 and the sixth jitter compensation coil unit 2216 interact with the first jitter compensation magnetic group 2221a, causing the first jitter compensation coil unit 2211 and the sixth jitter compensation coil unit 2216 to be subjected to a force along the positive X-axis. The first jitter compensation coil unit 2211 and the sixth jitter compensation coil unit 2216 drive the imaging component to move along the positive X-axis (to the right) through the jitter compensation base 21. Conversely, when a counterclockwise current is applied to the first jitter compensation coil unit 2211 and the sixth jitter compensation coil unit 2216, the first jitter compensation coil unit 2211 and the sixth jitter compensation coil unit 2216 are subjected to a force in the opposite direction (left side) along the X-axis. The first jitter compensation coil unit 2211 and the sixth jitter compensation coil unit 2216 drive the imaging component to move in the negative direction (left side) of the X-axis through the jitter compensation base 21, thereby achieving optical image stabilization in the X-axis direction.

[0162] like Figure 12 As shown, when the lens needs to compensate for the rotation of the optical axis, that is, when it is necessary to control the imaging component to rotate clockwise around the Z-axis, the sixth jitter compensation coil unit 2216, the third jitter compensation coil unit 2213 and the fourth jitter compensation coil unit 2214 are supplied with clockwise current, while the first jitter compensation coil unit 2211, the second jitter compensation coil unit 2212 and the fifth jitter compensation coil unit 2215 are supplied with counterclockwise current. The third jitter compensation coil unit 2213 and the fifth jitter compensation coil unit 2215 are subjected to a negative force along the Y-axis, the second jitter compensation coil unit 2212 and the fourth jitter compensation coil unit 2214 are subjected to a positive force along the Y-axis, the first jitter compensation coil unit 2211 is subjected to a negative force along the X-axis, and the sixth jitter compensation coil unit 2216 is subjected to a positive force along the X-axis, thereby forming a torsional force. The jitter compensation coil 221 drives the imaging component to rotate clockwise around the optical axis through the jitter compensation base 21, thereby achieving image stabilization in the RZ direction.

[0163] Conversely, when it is necessary to control the imaging component to rotate counterclockwise around the Z-axis, the sixth jitter compensation coil unit 2216, the third jitter compensation coil unit 2213, and the fourth jitter compensation coil unit 2214 are supplied with counterclockwise current, while the first jitter compensation coil unit 2211, the second jitter compensation coil unit 2212, and the fifth jitter compensation coil unit 2215 are supplied with clockwise current. The third jitter compensation coil unit 2213 and the fifth jitter compensation coil unit 2215 are subjected to a force along the positive Y-axis, the second jitter compensation coil unit 2212 and the fourth jitter compensation coil unit 2214 are subjected to a force along the negative Y-axis, the first jitter compensation coil unit 2211 is subjected to a force along the positive X-axis, and the sixth jitter compensation coil unit 2216 is subjected to a force along the negative X-axis, thereby forming a torsional force. The jitter compensation coil 221 drives the imaging component to rotate counterclockwise around the optical axis through the jitter compensation base 21, thereby achieving image stabilization in the RZ direction.

[0164] Referring to the accompanying drawings of this invention Figure 13 As shown, a driving device according to another aspect of the present invention will be described below. The autofocus assembly 10 of the driving device further includes a pair of focusing yokes 15, wherein the focusing yokes 15 are disposed on the focusing substrate 123 and located on the opposite side of the focusing coil 121. The focusing yokes 15 are opposite to the focusing magnet 122 of the autofocus assembly 10, and the focusing yokes 15 can generate a magnetic force with the focusing magnet 122, thereby pulling the autofocus assembly 10 along the direction of the focusing yokes 15. In short, the focusing yokes 15 can reset the autofocus assembly 10 through magnetic force.

[0165] Specifically, when the focusing coil 121 is energized by a driving signal, the electromagnetic interaction between the focusing coil 121 and the focusing magnet 122 generates a driving force along the Z-axis. The focusing base 11 can move along the Z-axis under the action of this driving force. When the driving signal for the focusing coil 121 is stopped, the focusing base 11 can return to its initial position through the magnetic force between the focusing magnet 122 and the focusing yoke 15. It is understood that the initial position refers to the position of the focusing base 11 before the driving signal is applied to the focusing coil 121.

[0166] The optical image stabilization assembly 20 of the driving device further includes at least one stabilization yoke 25, wherein the stabilization yoke 25 is disposed on the jitter compensation base 21 and located on the opposite side of the jitter compensation coil 221. The stabilization yoke 25 can generate a magnetic force with the jitter compensation magnet 222, thereby pulling the optical image stabilization assembly 20 along the direction of the stabilization yoke. In short, the stabilization yoke 25 uses magnetic force to reset the optical image stabilization assembly 20.

[0167] When the jitter compensation coil 221 is energized by a driving signal, the electromagnetic interaction between the jitter compensation coil 221 and the jitter compensation magnet 222 generates a driving force that rotates along and / or around the optical axis. The jitter compensation base 21 can move in the direction perpendicular to and / or around the optical axis under the action of this driving force. When the driving signal of the jitter compensation coil 221 is stopped, the jitter compensation base 21 can return to its initial position by the magnetic force between the jitter compensation magnet 222 and the anti-shake yoke 25. It is worth noting that the number of anti-shake yokes 25 can be one or more; this application does not impose any limitation.

[0168] In other embodiments of the present invention, the anti-shake yoke 25 can be integrally molded onto the jitter compensation base 21 by an embedded molding method, and the position of the anti-shake yoke 25 is opposite to the position of the jitter compensation magnet 222. Using an embedded molding method can reduce the space occupied by the anti-shake yoke 25 in the drive device, which is beneficial for reducing the size of the drive device.

[0169] Referring to the accompanying drawings of this invention Figure 14 As shown, a driving device according to another aspect of the present invention will be illustrated in the following description. Unlike the preferred embodiment described above, the reset element of the driving device is implemented as an elastic member.

[0170] In detail, the autofocus assembly 10 of the drive device further includes at least one focus reset member 16, wherein the focus reset member 16 is used to reset the autofocus assembly 10 to its initial position after power-on. The focus reset member 16 is disposed between the focusing base 11 and the fixed base 13, wherein one end of the focus reset member 16 is fixed to the focusing base 11, and the other end is fixed to the fixed base 13. It is worth noting that the focus reset member 16 is located at the four corners or four sides of the focusing base 11 and the fixed base 13, which is not limited in this application. Preferably, the focus reset member 16 is an elastic member, such as a spring, a spring sheet, or other elastic structure. When the focusing base 11 of the autofocus assembly 10 moves, the focus reset member 16 pulls the focusing base 11 back to its initial position by an elastic force.

[0171] The optical image stabilization assembly 20 of the driving device further includes at least one image stabilization reset member 26, wherein the image stabilization reset member 26 is used to reset the optical image stabilization assembly 20 to its initial position after power-on. The image stabilization reset member 26 is disposed between the jitter compensation base 21 and the fixed base 13, wherein one end of the image stabilization reset member 26 is fixed to the jitter compensation base 21, and the other end of the image stabilization reset member 26 is fixed to the fixed base 13. It is worth noting that the image stabilization reset member 26 is located at the four corners or four sides of the jitter compensation base 21 and the fixed base 13; this application does not impose limitations. Preferably, in this preferred embodiment of the present invention, the image stabilization reset member 26 can be a spring, a spring sheet, or other elastic structure.

[0172] Referring to the accompanying drawings of this invention Figure 15 As shown, a driving device according to another aspect of the invention is described below. Unlike the above embodiment, where the jitter compensation base 21 is supported by the bottom frame 32, the outer frame 30 of the driving device further includes at least one frame ball 33 disposed between the bottom frame 32 and the jitter compensation base 21 to reduce the friction between the bottom frame 32 and the jitter compensation base 21. It is understood that the frame ball 33 is used to support the distance between the jitter compensation base 21 and the bottom frame 32 and to reduce friction through rolling friction.

[0173] The four corners of the bottom of the jitter compensation base 21 have four downward-facing grooves, and the four corners of the support part of the bottom frame 32 also have four upward-facing grooves. The grooves of the jitter compensation base are opposite to the grooves of the frame, forming a space for accommodating and restricting the movement of the frame balls 33.

[0174] Referring to the accompanying drawings of this invention Figure 16 As shown, a camera module according to a preferred embodiment of the present invention will be described below. The camera module includes a driving device 100, an imaging component 200, and a lens 300, wherein the driving device 100 may be implemented as the driving device described in any of the preferred embodiments above, and the specific structure of the driving device 100 will not be described in detail here. The imaging component 200 and the lens 300 are disposed on the driving device 100, wherein the lens 300 is disposed on the autofocus component 10 of the driving device 100, and the autofocus component 10 drives the movement of the lens 300 to achieve autofocus of the lens 300. The driving device 100 is disposed at the upper end of the imaging component 200, and the optical image stabilization component 20 of the driving device 100 is transversely connected to the imaging component 200, wherein the optical image stabilization component 20 can drive the movement of the imaging component 200 to achieve optical image stabilization of the camera module.

[0175] In this application, the autofocus component 10 drives the lens 300 to move along the optical axis to achieve autofocus; the optical image stabilization component 20 drives the imaging component 200 to move perpendicular to the optical axis and / or rotate around the optical axis to achieve optical image stabilization. This structure, which separates autofocus and optical image stabilization, offers a simpler driving mechanism compared to existing methods that use a single imaging component for both autofocus and optical image stabilization. Compared to existing methods that use a single lens for both autofocus and optical image stabilization, it allows for a larger stabilization travel, thus compensating for larger camera module shakes. Furthermore, this arrangement avoids interference between the optical image stabilization component 20 and the autofocus component 10, thereby improving the imaging accuracy of the camera module.

[0176] It is worth mentioning that, in this preferred embodiment of the present invention, the lens 300 is mounted to the focusing base 11 by means of adhesive, snap-fit, or threads. In other optional embodiments of the present invention, the focusing base 11 may be implemented as the lens barrel of the lens, wherein the optical lenses and other components of the lens 300 are housed within the focusing base 11. In other words, optionally, the lens 300 and the focusing base 11 of the autofocus assembly 10 of the drive device 100 are an integral structure.

[0177] In detail, the imaging assembly 200 includes a filter assembly 210 and a circuit board assembly 220, wherein the circuit board assembly 220 is disposed below the filter assembly 210 along the optical axis. The filter assembly 210 of the imaging assembly 200 is fixed to the optical image stabilization assembly 20, and the optical image stabilization assembly 20 drives the filter assembly 210 and the circuit board assembly 220 of the imaging assembly 200 to perform optical image stabilization.

[0178] The filter assembly 210 includes a filter holder 2110 and at least one filter 2120 mounted on the filter holder 2110. The circuit board assembly 220 includes a circuit board 2210, at least one photosensitive chip 2220 mounted on the surface of the circuit board 2210, and at least one electronic component 2230, wherein the electronic component 2230 is located outside the photosensitive chip 2220. Further, the filter holder 2110 includes a lens mount 2101 and a support portion 2102, wherein the support portion 2102 extends from the lens mount 2101 and is used to attach the filter 2120 to the support portion 2102. The driving device 100 is mounted on the top surface of the lens mount 2101.

[0179] It is worth mentioning that, in this preferred embodiment of the present invention, the optical image stabilization component 20 can achieve optical image stabilization by driving the entire imaging component 200 to move. The circuit board 2210, the lens mount 2101, and the filter 2120 are encapsulated as a single unit, forming a closed space. The photosensitive chip 2220 is housed within this closed space, improving the sealing of the photosensitive chip 2220 and ensuring that the image formed by the photosensitive chip is not affected by dust during the manufacturing or use of the camera module.

[0180] Preferably, the top of the mirror base 2101 is connected to the jitter compensation base 21 in a driving manner. Since the jitter compensation base 21 is supported by the four support corners of the bottom frame 32, the four sides of the jitter compensation base 21 can be exposed and connected to the mirror base 2101.

[0181] The camera module further includes a bottom bracket 400, wherein the bottom bracket 400 is fixed to the bottom frame 32 of the driving device 100, the bottom bracket 400 and the bottom frame 32 form a bottom cavity, wherein the imaging component 200 is held in the bottom cavity to prevent the imaging component from being ejected and causing damage to the camera module in the event of an external impact.

[0182] like Figure 17As shown, the anti-shake ball 24 is located between the shake compensation base 21 and the fixed base 13, and the frame ball 33 is located between the shake compensation long base 21 and the bottom frame 32. When the shake compensation coil 221 is energized, the shake compensation coil 221 interacts with the shake compensation magnet 222, generating a force selected perpendicular to the optical axis and / or around the optical axis. This force drives the shake compensation base 21 to move the imaging component 200 along a direction perpendicular to the optical axis and / or around the optical axis, thus achieving optical image stabilization. The shake compensation base 21 can be supported by the anti-shake ball 24 and the frame ball 33, reducing the friction generated during optical image stabilization.

[0183] like Figure 18 As shown, unlike the preferred embodiment described above, in this preferred embodiment of the present invention, the jitter compensation base 21 further includes a support leg 213, wherein the support leg 213 extends integrally downward from the base body 211, and the support leg 213 is connected to the circuit board 2210 of the imaging assembly 200. That is, the circuit board 2210 of the imaging assembly 200 is tractably connected to the jitter compensation base 21. When the jitter compensation coil is energized, the jitter compensation coil 221 interacts with the jitter compensation magnet 222, generating a force perpendicular to and / or rotating around the optical axis. The jitter compensation coil 221 drives the jitter compensation base 21, and the jitter compensation base 21 drives the circuit board 2210 to move along the direction perpendicular to and / or rotating around the optical axis. The circuit board 2210 drives other components of the imaging assembly 200 to achieve optical image stabilization.

[0184] Referring to the accompanying drawings of this invention Figure 19 The diagram illustrates the conduction method of the autofocus assembly 10 and the optical image stabilization assembly 20 of the driving device 100 of the camera module. In this preferred embodiment of the invention, the focusing substrate 123 and the image stabilization substrate 223 are separate structures, with the focusing substrate 1234 being vertical and the image stabilization substrate 223 being horizontal. In other words, the focusing substrate 123 and the image stabilization substrate 223 are electrically connected to the circuit board 2210 of the imaging assembly 200, respectively. Preferably, the focusing substrate 123 and the image stabilization substrate 223 are implemented as flexible printed circuit boards (FPCs).

[0185] The camera module further includes a first connecting strip 500 and a second connecting strip 600, wherein the focusing substrate 123 is electrically connected to the circuit board 2210 of the imaging assembly 200 by the first connecting strip 500, and the shake compensation substrate 223 is electrically connected to the circuit board 2210 of the imaging assembly 200 by the second connecting strip 600. Preferably, the first connecting strip 500 and the second connecting strip 600 are flexible printed circuit boards (FPCs).

[0186] It is worth mentioning that the jitter compensation substrate 223 is horizontally arranged, that is, perpendicular to the optical axis. The jitter compensation substrate 223 has a through-hole so that light can pass through the through-hole to reach the imaging assembly 200. It is understood that the number of the second connecting strips 600 can be one to three, and the plane on which the second connecting strip 600 is located is not the same as the plane on which the first connecting strip 500 is located, to avoid electromagnetic interference. The second connecting strip 600 is bent downwards from the edge of the jitter compensation substrate 21 and electrically connected to the circuit board of the imaging assembly 200 to achieve circuit conduction.

[0187] Referring to the accompanying drawings of this invention Figures 20 to 27 As shown, a driving device according to a second preferred embodiment of the present invention is described below. The driving device is adapted to a lens, driving a lens of a camera module and / or moving an imaging component of a camera module based on an optical axis O of the lens. The driving device has optical image stabilization and autofocus functions. The driving device includes an autofocus component 10' and an optical image stabilization component 20'. The autofocus component 10' moves the lens body along the optical axis to achieve autofocus, and the optical image stabilization component 20' moves the imaging component along a direction perpendicular to the optical axis and / or rotates it about the lens's optical axis to achieve optical image stabilization.

[0188] It is worth mentioning that, in this preferred embodiment of the present invention, the optical image stabilization function and the autofocus function of the driving device are set separately, which not only simplifies the structure but also enables a larger image stabilization travel, thereby compensating for larger shakes in the camera module.

[0189] In detail, the autofocus assembly 10' includes a focusing base 11' and a focusing actuator 12', wherein the lens of the camera module is disposed on the focusing base 11', and the focusing base 11' is tractably connected to the focusing actuator 12', and the focusing actuator 12' drives the focusing base 11' to move. The focusing base 11' is driven by the focusing actuator 12', thereby causing the lens to move along the optical axis direction to achieve optical focusing.

[0190] The lens of the camera module is mounted to the focusing base by means of adhesive, clips, or threads. Preferably, the lens and the focusing base 11' are an integral structure, that is, the focusing base 11' is a lens barrel of the lens, and the optical elements of the lens, such as optical lenses, are disposed on the focusing base 11'. The focusing base 11' can also serve as a carrier to move the lens to achieve autofocus. Those skilled in the art will understand that an integral structure can reduce the size of the lens barrel and the gap between the lens barrel and the carrier, thus achieving the beneficial effect of reducing the size of the camera module.

[0191] The focusing base 11' has a lens aperture 110', wherein the lens is disposed in the lens aperture 110' of the focusing base 11', or the optical components of the lens are disposed in the lens aperture 110' of the focusing base 11'.

[0192] like Figure 22 As shown, the focusing actuator 12' includes at least one pair of focusing coils 121' and at least one pair of focusing magnets 122', wherein the at least one pair of focusing magnets 122' is disposed on an outer side wall of the focusing base 11', wherein the focusing coils 121' and the focusing magnets 122' are positioned opposite each other, and when the focusing coils 121' are energized, a Lorentz force is generated between the focusing coils 121' and the focusing magnets 122' along the optical axis, driving the focusing base 11' to move the lens along the optical axis, thereby achieving optical focusing.

[0193] It is worth mentioning that, in this preferred embodiment of the present invention, the focusing magnet 122' of the focusing actuator 12' is embedded in an outer side wall of the focusing base 11', or the focusing magnet 122' is attached to the outer side wall of the focusing base 11'. The manner in which the focusing magnet 122' is fixed is not limited here.

[0194] It is worth mentioning that the focusing magnet 122' of the focusing actuator 12' can also be embedded or attached to an inner side wall of the focusing base 11', that is, the focusing magnet 122' of the focusing actuator 12' can also be embedded or attached to a side wall of the focusing base 11', so that the focusing magnet 122' and the focusing coil 121' are positioned opposite each other.

[0195] The focusing actuator 12' further includes a focusing substrate 123', wherein the focusing substrate 123' is electrically connected to the focusing coil 121', and the focusing substrate 123' electrically conducts the focusing coil 121' of the focusing actuator 12'. Preferably, in this preferred embodiment of the present invention, the focusing substrate 123' of the focusing actuator 12' is a flexible printed circuit board (FPC).

[0196] The focusing magnet 122' is a group of magnets, and the focusing magnet 122' is a magnet with N pole and S pole. The number of the magnets can be one or more.

[0197] The focusing actuator 12' further includes at least one pair of focusing magnetic sensing elements 124', wherein the focusing magnetic sensing elements 124' are opposite to the focusing magnet 122', and the focusing magnetic sensing elements 124' sense the position of the focusing magnet 122' and feed back the magnetic field change caused by the position change of the focusing magnet 122'. Preferably, in this preferred embodiment of the present invention, the focusing magnetic sensing element 124' is a Hall element, wherein the focusing magnetic sensing element 124' is disposed on the focusing substrate 123'. Optionally, in this preferred embodiment of the present invention, the focusing magnetic sensing element 124' is a circuit module built into the focusing substrate 123'.

[0198] The focusing magnetic sensing element 124' is electrically connected to the focusing substrate 123'. When autofocusing is performed, the focusing magnet 122' moves along the optical axis with the lens, while the focusing magnetic sensing element 124' remains stationary. The up-and-down movement of the focusing magnet 122' causes a change in the magnetic field near the focusing magnetic sensing element 124'. The focusing magnetic sensing element 124' senses this change and feeds it back to the driving circuit of the focusing substrate 123' to adjust the input current, so that the entire structure forms a closed-loop system, thereby quickly and accurately realizing the autofocus function.

[0199] like Figures 20 to 22 As shown, the autofocus assembly 10' further includes a fixed base 13', wherein the focusing base 11' and the focusing actuator 12' are disposed on the fixed base 13'. The fixed base 13' has a focusing cavity 130, wherein the focusing magnet 122' of the focusing base 11' and the focusing actuator 12' is movably disposed in the focusing cavity 130 of the fixed base 13' along the optical axis. The focusing coil 121' and the focusing base plate 123' of the focusing actuator 12' are fixed to the fixed base 13', wherein the focusing coil 121' is supported by the fixed base 13' and generates a magnetic force to drive the focusing magnet 122' to move.

[0200] The fixed base 13' is a hollow structure that is interconnected along the optical axis. The fixed base 13' includes a base plate 131' and at least one supporting sidewall 132' extending integrally upward from the outer side of the base plate 131'. The focusing coil 121' and the focusing substrate 123' of the focusing actuator 12' are disposed on the supporting sidewall 132' of the fixed base 13'. The base plate 131' and the supporting sidewall 132' of the fixed base 13' are perpendicular to each other, meaning they are perpendicular at 90° or their perpendicularity tolerance is within 3°.

[0201] The fixed base 13' is further provided with at least one actuator mounting portion 133', wherein the focusing coil 121' and the focusing substrate 123' of the focusing actuator 12' are fixed to the actuator mounting portion 133' of the fixed base 13', and the focusing coil 121' and the focusing substrate 123' of the focusing actuator 12' are fixed and supported by the actuator mounting portion 133'.

[0202] Preferably, the actuator mounting portion 133' is a groove formed in the support sidewall 132' of the fixed base 13', wherein the position of the actuator mounting portion 133' is directly opposite the position of the focusing magnet 122' of the focusing actuator 12'. Optionally, the actuator mounting portion 133' is a through hole formed in the support sidewall 132' of the fixed base 13', wherein the focusing coil 121' is mounted in the actuator mounting portion 133'.

[0203] Preferably, the focusing substrate 123' of the focusing actuator 12' is attached to the outer side of the support sidewall 132' of the fixed base 13'. It is worth noting that the focusing coil 121' is disposed in the actuator mounting portion 133' formed in the support sidewall 132', allowing the focusing substrate 123' to be attached more smoothly to the outer sidewall of the fixed base 13', preventing it from falling off due to the focusing coil 121' protruding and failing to adhere properly.

[0204] It is worth mentioning that when the focusing coil 121' is energized, the magnetic field generated can interact with the magnetic field of the focusing magnet 122' to generate a driving force along the optical axis, thereby moving the lens along the optical axis to achieve autofocus.

[0205] The fixed base 13' has a first outer side wall 1301', a second outer side wall 1302', a third outer side wall 1303', and a fourth outer side wall 1304', wherein the first outer side wall 1301' and the second outer side wall 1302' are arranged back-to-back, and the third outer side wall 1303' and the fourth outer side wall 1304' are arranged back-to-back. In this preferred embodiment of the invention, the focusing coil 121' of the focusing actuator 12' is disposed on the first outer side wall 1301' of the fixed base 13'. It is understood that the actuator mounting portion 133' is a groove formed in the first outer side wall 1301'. It is worth mentioning that the focusing coil 121' can also be embedded or attached to an inner side wall of the fixed base 13', that is, the focusing coil 121' can also be embedded or attached to a side wall of the fixed base 13'.

[0206] The autofocus assembly 10' further includes at least one focusing ball unit 14', wherein the focusing ball unit 14' is disposed between the focusing base 11' and the fixed base 13'. When the focusing substrate 123' of the focusing actuator 12' is energized, the focusing substrate 123' and the focusing magnet 122' are driven by the focusing substrate 123' to move along the optical axis through magnetic force. The focusing ball unit 14' is used to reduce the resistance to the movement of the focusing base 11' and to support and maintain the distance between the focusing base 11' and the fixed base 13', so that the lens can move stably along the optical axis.

[0207] At least one ball bearing groove 101' is provided between the focusing base 11' and the fixed base 13', wherein the focusing ball bearing unit 14' of the autofocus assembly 10' is disposed in the ball bearing groove 101', and the focusing ball bearing unit 14' supports and maintains the distance between the focusing base 11' and the fixed base 13', and provides movement of the focusing base 11' relative to the fixed base 13' along the optical axis. The ball bearing groove 101' is disposed along the optical axis, and the ball bearing groove 101' is formed between the outer sidewall of the focusing base 11' and the inner sidewall of the fixed base 13'.

[0208] Specifically, the outer wall of the focusing base 11' has at least one first track 111' along the Z-axis (optical axis direction), and the inner wall of the fixed base 13' has at least one second track 134' along the Z-axis (optical axis direction). The positions of the first track 111' and the second track 134' are opposite to each other. A ball bearing groove 101' is formed between the first track 111' of the focusing base 11' and the second track 134' of the fixed base 13' to provide movement of the focusing base relative to the fixed base along the optical axis (Z-axis direction). Since the ball bearing groove 101' is directionally defined, i.e., along the optical axis direction, the focusing ball bearing unit 14' can move along the Z-axis direction, resulting in more precise lens movement during autofocus.

[0209] Preferably, in this preferred embodiment of the present invention, the number of ball bearing grooves 101' is two. When the ball bearing grooves 101' are formed on one side of the focusing magnet 122', the ball bearing grooves 101' are respectively formed on both sides of the focusing magnet 122', so that the focusing base 11' moves more smoothly and does not tilt during autofocus. Optionally, in other alternative embodiments of the present invention, the ball bearing grooves 101' are formed on other sidewalls of the focusing base 11' and the fixed base 13', which is not limited in this application.

[0210] like Figure 20 and Figure 21 As shown, the optical image stabilization assembly 20' includes a shake compensation base 21' and a shake compensation actuator 22', wherein the shake compensation base 21' is located below the fixed base 13', that is, the focusing base 11' and the fixed base 13' are fitted inside the shake compensation base 21'. When optical image stabilization is performed, the shake compensation base 21' is driven based on the compensation value and moves relative to the fixed base 13' to achieve optical image stabilization of the lens. It is worth mentioning that the movement of the optical image stabilization assembly 20' along or around the optical axis can help the lens achieve a larger OIS travel, including XOY direction compensation and RZ direction compensation. The shake compensation base 21' of the optical image stabilization component 20' is connected to an imaging component of the camera module in a driving manner. When the camera module needs shake compensation, the shake compensation base 21' of the optical image stabilization component 20' is driven by force to compensate the imaging component of the camera module along the XOY direction and the RZ direction.

[0211] The shake compensation actuator 22' further includes at least one shake compensation coil 221' and at least one shake compensation magnet 222', wherein the shake compensation coil 221' is disposed on the outer side wall of the fixed base 13', and the shake compensation magnet 222' is disposed on the inner side wall of the shake compensation base 21', and the shake compensation coil 221' and the shake compensation magnet 222' are positioned opposite each other. It is worth noting that, in this preferred embodiment of the present invention, the shake compensation coil 221' and the shake compensation magnet of the shake compensation actuator 22' are arranged in pairs, and the position of the shake compensation actuator 22' is not on the same side of the fixed base 13' as the position of the focusing actuator 12' of the autofocus assembly 10'. In other words, the shake compensation coil 221' of the shake compensation actuator 22' can be located on other sides of the side where the focusing coil 121' of the focusing actuator 12' is located, such as the side adjacent to and / or opposite to the focusing coil 121'. Therefore, the magnetic field generated by the shake compensation magnet will not affect the magnetic field generated by the autofocus magnet, and no magnetic interference will be generated during optical image stabilization and autofocus, thus avoiding affecting the imaging accuracy of the lens when the lens is performing optical image stabilization and / or autofocus.

[0212] When the jitter compensation coil 221' of the jitter compensation actuator 22' is energized, a Lorentz force is generated between the jitter compensation coil 221' and the jitter compensation magnet 222', which rotates perpendicular to and / or around the optical axis. This drives the jitter compensation base 21' to move an imaging component of the camera module along the direction perpendicular to the optical axis and / or rotate around the optical axis, thereby achieving optical image stabilization.

[0213] The jitter compensation actuator 22' further includes a jitter compensation substrate 223', wherein the jitter compensation substrate 223' is electrically connected to the jitter compensation coil 221' of the jitter compensation actuator 22'. The jitter compensation coil 221' of the jitter compensation actuator 22' is electrically connected to the imaging assembly through the jitter compensation substrate 223'. The jitter compensation substrate 223' is fixed to the outer wall of the fixed base 13', wherein the jitter compensation coil 221' is disposed on the jitter compensation substrate 223', and the jitter compensation coil 221' is supported on the fixed base 13' by the jitter compensation substrate 223'. Therefore, it can be understood that when the jitter compensation substrate 223' energizes the jitter compensation coil 221', the jitter compensation coil 221', supported by the fixed base 13', drives the jitter compensation magnet 222', thereby causing the jitter compensation base 21' to move or rotate in a specific direction. It is worth mentioning that, in this preferred embodiment of the present invention, the jitter compensation substrate 223' is fixed to the three outer sidewalls of the fixed base 13' other than the focusing substrate 123', and the jitter compensation coil 221' is supported by the fixed base 13'. It can also be understood that, in this preferred embodiment of the present invention, the jitter compensation substrate 223' is supported by the second outer sidewall 1302', the third outer sidewall 1303', and the fourth outer sidewall 1304' of the fixed base 13'.

[0214] In this preferred embodiment of the invention, the shake compensation magnet 222' is disposed on three adjacent inner sidewalls of the shake compensation base 21'. The sidewalls where the shake compensation magnet 222' is located are different from the sidewalls where the autofocus magnet 122' is located, so that the autofocus assembly 10' and the optical image stabilization assembly 20' will not interfere with each other. In other words, the magnetic field generated by the shake compensation magnet 222' will not affect the magnetic field generated by the autofocus magnet 122', and no magnetic interference will occur during optical image stabilization and autofocus, thus avoiding affecting the imaging accuracy of the lens when the lens is performing optical image stabilization and / or autofocus. That is, when the lens moves along the X, Y and / or RZ directions, it will not cause the lens to shift along the Z-axis; and when the lens moves along the Z-axis, it will not cause the lens to shift in the X, Y and / or RZ directions.

[0215] It is worth mentioning that, in this preferred embodiment of the present invention, the shake compensation substrate 223' is disposed on the other three outer sidewalls of the fixed base 13' (i.e., the other outer sidewalls besides the outer sidewall supporting the focusing substrate 123'), and the three shake compensation coils 221' are disposed on the shake compensation substrate 223'. The shake compensation coils 221' are disposed on the outer side of the shake compensation substrate 223', and the three corresponding shake compensation magnets 222' are disposed on the inner sidewall of the shake compensation base 21' by means of attachment or embedding. That is, the shake compensation magnets 222' can also be embedded or attached to one sidewall of the shake compensation base 21', so that the shake compensation magnets 222' and the shake compensation coils 221' are positioned opposite each other.

[0216] The jitter compensation magnet 222' further includes three jitter compensation magnet groups 2221', namely a first jitter compensation magnet group 2221a', a second jitter compensation magnet group 2221b', and a third jitter compensation magnet group 2221c', wherein each of the jitter compensation magnet groups (2221a', 2221b', and 2221c') is a magnet with N poles and S poles, and the number of the magnets can be one or more.

[0217] Preferably, the vertical planes containing the shake compensation coil 221' and the focusing coil 121' are located on the four sides of the fixed base 13'. In a plane perpendicular to the optical axis (i.e., the XOY direction), the first shake compensation magnetic group 2221a' is located on the inner wall of the shake compensation base 21' along the X-axis, and the second shake compensation magnetic group 2221b' and the third shake compensation magnetic group 2221c' are located on the inner wall of the shake compensation base 21' along the Y-axis. That is, the first shake compensation magnetic group 2221a' is used for image stabilization in the X-axis direction, and the second shake compensation magnetic group 2221b' and the third shake compensation magnetic group 2221c' are used for image stabilization in the Y-axis and RZ directions.

[0218] It is worth mentioning that, in this preferred embodiment of the present invention, the first jitter compensation magnetic group 2221a' is directly opposite the second outer side wall 1302' of the fixed base 13', the second jitter compensation magnetic group 2221b' is directly opposite the third outer side wall 1303' of the fixed base 13', and the third jitter compensation magnetic group 2221a is directly opposite the fourth outer side wall 1304' of the fixed base 13'.

[0219] The vertical plane containing the first shake compensation magnetic group 2221a' is opposite to the vertical plane containing the focusing magnet 122', and the vertical plane containing the second shake compensation magnetic group 2221b' is opposite to the vertical plane containing the third shake compensation magnetic group 2221c'. In other words, the three shake compensation magnetic groups 2221' and the focusing magnet 122' are respectively positioned on the four non-intersecting sides of the driving device. This arrangement ensures that the optical image stabilization component 20' and the autofocus component 10' do not interfere with each other.

[0220] In other words, the magnetic field generated by the shake compensation magnetic assembly 2221' will not affect the magnetic field generated by the autofocus magnet 122', and will not cause magnetic interference during optical image stabilization and autofocus, thus avoiding affecting the lens's imaging accuracy when the lens is performing optical image stabilization and / or autofocus. That is to say, when the lens moves along the X, Y, and / or RZ directions, it will not cause the lens to shift along the Z-axis; and when the lens moves along the Z-axis, it will not cause the lens to shift in the X, Y, and / or RZ directions.

[0221] Preferably, the shake compensation substrate 223' is implemented as a flexible printed circuit board (FPC), wherein the shake compensation substrate 223' is supported on the outer wall of the fixed base 13', and the shake compensation coil 221' and the shake compensation magnetic group 2221' located on the outer side of the shake compensation substrate 223' are disposed opposite to each other. When the shake compensation coil 221' is energized, a Lorentz force is generated between the shake compensation coil 221' and the shake compensation magnetic group 2221', which rotates perpendicular to the optical axis and / or around the optical axis. The shake compensation magnetic group 2221' drives the shake compensation base 21' to move the imaging component of the camera module along the direction perpendicular to the optical axis and / or rotate around the lens optical axis, thereby achieving optical image stabilization.

[0222] It is worth mentioning that, in this preferred embodiment of the present invention, the shake compensation substrate 223' is disposed on the outer side of the fixed base 13' along the optical axis direction. The shake compensation coil 221' is supported by the shake compensation substrate 223' on the fixed base 13'. The fixed base 13' supports the shake compensation coil 221' to drive the shake compensation magnetic assembly 2221'. The shake compensation base 21' then drives or drives the imaging component to move along the direction perpendicular to the optical axis and / or rotate around the lens optical axis direction, thereby achieving optical image stabilization.

[0223] like Figure 20As shown, in this preferred embodiment of the present invention, the shake compensation substrate 223' and the focusing substrate 123' are jointly arranged around the four sides of the outer side wall of the fixed base 13'. It is worth mentioning that the shake compensation substrate 223' and the focusing substrate 123' have pins or wires extending from their bottoms to be electrically connected to the circuit board of the imaging assembly, thereby achieving circuit conduction.

[0224] In this preferred embodiment of the invention, when the focusing coil 121' is energized, the interaction between the focusing coil 121' and the focusing magnet 122' generates a driving force along the optical axis, which drives the focusing base 11' to move along the optical axis, thereby achieving automatic focusing of the lens. During this process, the focusing coil 121' does not move, and the focusing base 11' is driven by the focusing magnet 122'. When the shake compensation coil 221' is energized, the interaction between the shake compensation coil 221' and the shake compensation magnet 222' generates a driving force perpendicular to and / or about the optical axis, which drives the shake compensation magnet 222' to move along the direction perpendicular to and / or about the optical axis, thereby achieving optical image stabilization. During this process, the shake compensation coil 221' does not move, and the shake compensation magnet 222' is driven by the shake compensation base 21'.

[0225] The jitter compensation coil 221' further includes a first jitter compensation coil unit 2211', a second jitter compensation coil unit 2212', a third jitter compensation coil unit 2213', a fourth jitter compensation coil unit 2214', and a fifth jitter compensation coil unit 2215', wherein the first jitter compensation coil unit 2211', the second jitter compensation coil unit 2212', the third jitter compensation coil unit 2213', the fourth jitter compensation coil unit 2214', and the fifth jitter compensation coil unit 2215' are disposed on the outer surface of the jitter compensation substrate 223', and each of the jitter compensation coil units faces the jitter compensation magnetic assembly 2221'.

[0226] The first shake compensation coil unit 2211' is positioned on the side directly opposite to the first shake compensation magnetic group 2221a', that is, on the other side corresponding to the focusing coil 121'. When the first shake compensation coil unit 2211' is energized, the magnetic force between the first shake compensation coil unit 2211' and the first shake compensation magnetic group is used for image stabilization in the X-axis direction. The second jitter compensation coil unit 2212', the third jitter compensation coil unit 2213', the fourth jitter compensation coil unit 2214', and the fifth jitter compensation coil unit 2215' are disposed on both sides adjacent to the first jitter compensation coil unit 2211'. The magnetic force between the second jitter compensation coil unit 2212', the third jitter compensation coil unit 2213', the fourth jitter compensation coil unit 2214', and the fifth jitter compensation coil unit 2215' and the second jitter compensation magnetic group 2221b' and the third jitter compensation magnetic group 2221c' after being energized is used for jitter reduction in the Y-axis direction and the RZ direction.

[0227] It is worth mentioning that, in this preferred embodiment of the present invention, the second jitter compensation coil unit 2212' and the fourth jitter compensation coil unit 2214' are arranged opposite each other in the positive direction of the X-axis; the third jitter compensation coil unit 2213' and the fifth jitter compensation coil unit 2215' are arranged opposite each other in the positive direction of the Y-axis. The second jitter compensation coil unit 2212' and the fifth jitter compensation coil unit 2215' are arranged diagonally on the plane containing the XOY axes; the third jitter compensation coil unit 2213' and the fourth jitter compensation coil unit 2214' are arranged diagonally on the plane containing the XOY axes.

[0228] Preferably, the second jitter compensation coil unit 2212' and the third jitter compensation coil unit 2213' are disposed on the side facing the second jitter compensation magnetic group 2221b', and the fourth jitter compensation coil unit 2214' and the fifth jitter compensation coil unit 2215' are disposed on the side facing the third jitter compensation magnetic group 2221c'.

[0229] like Figure 24As shown, when the lens needs to compensate for the X-axis direction, that is, when it is necessary to control the imaging component to translate along the positive X-axis (for example, along the right side of the X-axis), a clockwise current is passed through the first jitter compensation coil unit 2211'. The first jitter compensation coil unit 2211' interacts with the first jitter compensation magnetic group 2221a', so that the first jitter compensation coil unit 2211' is subjected to the force along the positive X-axis provided by the first jitter compensation magnetic group 2221a'. Then, the first jitter compensation coil unit 2211' drives the imaging component to move along the right side of the X-axis through the jitter compensation base 21'. Conversely, when a counterclockwise current is applied to the first jitter compensation coil unit 2211', the first jitter compensation coil unit 2211' is subjected to a negative force along the X-axis provided by the first jitter compensation magnetic group 2221a'. Consequently, the first jitter compensation coil unit 2211' drives the imaging component to move to the left along the X-axis through the jitter compensation base 21', thereby achieving optical image stabilization in the X-axis direction.

[0230] like Figure 25When the lens needs to compensate for the Y-axis direction, that is, when the imaging component needs to be controlled to translate along the positive Y-axis, the second jitter compensation coil unit 2212' and the third jitter compensation coil unit 2213' are supplied with counterclockwise current, and the fourth jitter compensation coil unit 2214' and the fifth jitter compensation coil unit 2215' are supplied with clockwise current. The second jitter compensation coil unit 2212' and the third jitter compensation coil unit 2213' interact with the second jitter compensation magnetic group 2221b', causing the second jitter compensation coil unit 2212' and the third jitter compensation coil unit 2213' to be subjected to a force along the positive Y-axis. The fourth jitter compensation coil unit 2214' and the fifth jitter compensation coil unit 2215' interact with the third jitter compensation magnetic group 2221c', causing the fourth jitter compensation coil unit 2214' and the fifth jitter compensation coil unit 2215' to be subjected to a force along the positive Y-axis. In short, when the second jitter compensation coil unit 2212' and the third jitter compensation coil unit 2213' are supplied with a counterclockwise current, and the fourth jitter compensation coil unit 2214' and the fifth jitter compensation coil unit 2215' are supplied with a clockwise current, the jitter compensation coil 221' is subjected to a force along the positive Y-axis, and the jitter compensation coil 221' drives the imaging assembly to move along the positive Y-axis through the jitter compensation base 21'. Conversely, when the second jitter compensation coil unit 2212' and the third jitter compensation coil unit 2213' are supplied with clockwise current, and the fourth jitter compensation coil unit 2214' and the fifth jitter compensation coil unit 2215' are supplied with counterclockwise current, the jitter compensation coil 221' is subjected to a force along the negative Y-axis, and the jitter compensation coil 221' drives the imaging component to move along the negative Y-axis through the jitter compensation base 21'.

[0231] like Figure 26When the lens needs to compensate for optical axis rotation, i.e., when it needs to control the imaging component to rotate clockwise around the Z-axis, the third shake compensation coil unit 2213' and the fourth shake compensation coil unit 2214' are supplied with clockwise current, while the second shake compensation coil unit 2212' and the fifth shake compensation coil unit 2215' are supplied with counterclockwise current. The third shake compensation coil unit 2213' and the fifth shake compensation coil unit 2215' are subjected to a negative force along the Y-axis; the second shake compensation coil unit 2212' and the fourth shake compensation coil unit 2214' are subjected to a positive force along the Y-axis. Therefore, the two sides of the shake compensation coil 221' are subjected to positive and negative forces along the Y-axis, thereby forming a clockwise torsional force. The shake compensation coil 221' drives the imaging component to rotate clockwise around the optical axis through the shake compensation base 21', achieving RZ-direction image stabilization. Conversely, the second jitter compensation coil unit 2212' and the fifth jitter compensation coil unit 2215' are supplied with clockwise current, while the third jitter compensation coil unit 2213' and the fourth jitter compensation coil unit 2214' are supplied with counterclockwise current. The third jitter compensation coil unit 2213' and the fifth jitter compensation coil unit 2215' are subjected to a positive force along the Y-axis; the second jitter compensation coil unit 2212' and the fourth jitter compensation coil unit 2214' are subjected to a negative force along the Y-axis, thereby forming a counterclockwise torsional force that drives the imaging component to rotate counterclockwise around the optical axis by the jitter compensation coil 221', achieving image stabilization in the RZ direction.

[0232] The optical image stabilization component 20' further includes at least one jitter magnetic sensing element 23', wherein the jitter magnetic sensing element 23' is electrically connected to the jitter compensation substrate 223', and the jitter magnetic sensing element 23' is disposed face-to-face with the jitter compensation magnetic assembly 2221'. Preferably, the jitter magnetic sensing element 23' is disposed on the jitter compensation substrate 223', and is used to sense the position of the jitter compensation magnetic assembly 2221' and to provide feedback on the magnetic field change caused by the positional change of the jitter magnetic sensing element 23' relative to the jitter compensation magnetic assembly 2221'.

[0233] It is worth mentioning that during optical image stabilization, the jitter compensation coil 221' rotates along the direction perpendicular to and / or around the optical axis with the imaging component, while the jitter compensation magnetic group 2221' remains stationary. The movement of the jitter compensation coil 221' causes a change in the magnetic field of the jitter magnetic sensing element 23' relative to the vicinity of the jitter compensation magnetic group 2221'. The jitter magnetic sensing element 23' senses this change and feeds it back to the drive circuit through the jitter compensation substrate 223', adjusting the input current. This forms a closed-loop system, enabling rapid and accurate optical image stabilization.

[0234] Preferably, in this preferred embodiment of the invention, the jitter compensation magnetic group 2221' is implemented as a Hall element.

[0235] The optical image stabilization assembly 20' further includes at least one stabilization ball 24', wherein the stabilization ball 24' is disposed between the shake compensation base 21' and the fixed base 13', and is used to support and maintain the distance between the shake compensation base 21' and the fixed base 13'. The shake compensation base 21' includes a base body 211' and at least one ball receiving groove 212', wherein the ball receiving groove 212' has a recess, and the stabilization ball 24' is disposed in the ball receiving groove 212' of the shake compensation base 21'. It is worth mentioning that the receiving space of the ball receiving groove 212' is slightly larger than the ball diameter of the stabilization ball 24', so as to allow the stabilization ball 24' to roll within the ball receiving groove 212', and reduce the friction between the shake compensation base 21' and the fixed base 13' through the rolling friction of the stabilization ball 24'.

[0236] Preferably, in this preferred embodiment of the present invention, the optical image stabilization component 20' has four stabilization balls 24', and the number of ball receiving grooves 212' in the jitter compensation base 21' corresponds to the number of stabilization balls 24'. Preferably, the ball receiving grooves 212' are located at the four corners of the base body 211' of the jitter compensation base 21'.

[0237] The anti-shake ball 24' is supported between the upper side of the vibration compensation base 21' and the lower side of the fixed base 13', forming an anti-shake adjustment space 201'. The anti-shake ball 24' supports and maintains the distance between the vibration compensation base and the fixed base, and reduces the friction between the vibration compensation base 21' and the fixed base 13' by rolling friction instead of sliding friction.

[0238] The fixed base 13' further includes at least one lower groove 135', wherein the lower groove 135' is formed on the lower surface of the fixed base 13', and the lower groove 135' is directly opposite the ball receiving groove 212' of the jitter compensation base 21'. The anti-shake ball 24' is constrained between the lower groove 135' and the ball receiving groove 212' of the fixed base 13'. It is understood that the lower groove 135' and the ball receiving groove 212' together form the anti-shake adjustment space 201'. It is understood that, in this preferred embodiment of the present invention, the number of the lower grooves 135' of the fixed base 13' is four, wherein the lower grooves 135' are directly opposite the ball receiving grooves 212' of the jitter compensation base 21', forming four anti-shake adjustment spaces 201' to provide the jitter compensation base 21' with respect to the fixed base 13' in a direction perpendicular to the optical axis and / or about the optical axis.

[0239] It is worth mentioning that the anti-shake adjustment space 201' is formed at the four corners of the shake compensation base 21' and the fixed base 13', which reduces the space occupied by the drive device. Furthermore, the supporting effect of the shake ball 24 can maintain a certain gap between the shake compensation magnetic group 2221' and the shake compensation coil 221', thereby making the shake compensation base 21' move more smoothly.

[0240] like Figure 27 As shown, the driving device further includes an outer frame 30', wherein the autofocus assembly 10' and the optical image stabilization assembly 20' of the driving device are fixed to the outer frame 30', and the outer frame 30' protects the autofocus assembly 10' and the optical image stabilization assembly 20'. The outer frame 30' includes a housing 31' and a bottom frame 32', wherein the housing 31' and the bottom frame 32' are combined to form a protective space 301', wherein the autofocus assembly 10' and the optical image stabilization assembly 20' are supported by the outer frame 30' in the protective space 301' to prevent the autofocus assembly 10' and the optical image stabilization assembly 20' from falling off and being damaged due to external impact.

[0241] It is worth mentioning that the outer frame 30' can be used to block electromagnetic waves generated by the camera module during operation, producing an electromagnetic shielding effect. If electromagnetic waves generated when driving the camera module are emitted to the outside or emitted to the outside of the camera module, the electromagnetic waves may affect other electronic components, which may lead to communication errors or malfunctions. In this preferred embodiment of the invention, the material of the housing 31' can be a metallic material, and the housing 31' is grounded so that the housing 31' acts as an electromagnetic shield. Optionally, the material of the housing 31' can be a plastic material, with a conductive material coated on the plastic surface to block electromagnetic waves. This application does not limit the material of the housing. The housing 31' has an opening so that light passing through the lens can enter the imaging assembly for imaging.

[0242] Preferably, the outer shell 31' is fixed to the upper part of the fixed base 13', the bottom frame 32' is fixed to the lower part of the fixed base 13', and the bottom frame 32' includes a frame body 321' and four support corners 322' extending inward from the corners of the frame body 321'. The optical image stabilization component 20' is supported on the support corners 322', so that the four bottom edges of the optical image stabilization component 20' can be linked with the imaging component. This not only increases the bonding area and makes the connection more secure, but also, relative to the imaging component being connected to the bottom frame 32', further reduces the height of the camera module.

[0243] It is worth mentioning that, in this embodiment, the stabilization travel along the direction perpendicular to the optical axis can reach ±301mm, the stabilization travel around the optical axis can reach ±1°, and the autofocus travel can reach ±500mm.

[0244] Referring to the accompanying drawings of this invention Figure 28 and Figure 29 As shown, a driving device according to another embodiment of the present invention will be described in the following description. Unlike the above embodiments, in this preferred embodiment of the present invention, the number of jitter compensation coils along the X-axis is two. When performing RZ-axis jitter compensation, the jitter compensation coils in the X-axis direction and the jitter compensation coils in the Y-axis direction can be energized simultaneously to achieve a larger RZ-axis jitter compensation effect.

[0245] In detail, the shake compensation coil 221' further includes a sixth shake compensation coil unit 2216', wherein the first shake compensation coil unit 2211' and the sixth shake compensation coil unit 2216' are disposed on the outside of the shake compensation substrate 223', and on the other side corresponding to the focusing coil 121'. The first shake compensation coil unit 2211' and the sixth shake compensation coil unit 2216' are symmetrically arranged along the X-axis direction.

[0246] like Figure 28 As shown, when the lens needs to compensate for the X-axis direction, that is, when it needs to control the imaging component to translate along the positive X-axis (to the right of the X-axis), a clockwise current is passed through the first jitter compensation coil unit 2211' and the sixth jitter compensation coil unit 2216'. The first jitter compensation coil unit 2211' and the sixth jitter compensation coil unit 2216' interact with the first jitter compensation magnetic group 2221a', causing the first jitter compensation coil unit 2211' and the sixth jitter compensation coil unit 2216' to be subjected to a force along the positive X-axis. The first jitter compensation coil unit 2211' and the sixth jitter compensation coil unit 2216' drive the imaging component to move along the positive X-axis (to the right) through the jitter compensation base 21'. Conversely, when a counterclockwise current is applied to the first jitter compensation coil unit 2211' and the sixth jitter compensation coil unit 2216', the first jitter compensation coil unit 2211' and the sixth jitter compensation coil unit 2216' are subjected to a force in the opposite direction (left side) along the X-axis. The first jitter compensation coil unit 2211' and the sixth jitter compensation coil unit 2216' drive the imaging component to move along the negative direction (left side) of the X-axis through the jitter compensation base 21', thereby achieving optical image stabilization in the X-axis direction.

[0247] like Figure 29As shown, when the lens needs to compensate for the rotation of the optical axis, that is, when it is necessary to control the imaging component to rotate clockwise around the Z-axis, the sixth jitter compensation coil unit 2216', the third jitter compensation coil unit 2213', and the fourth jitter compensation coil unit 2214' are supplied with clockwise current, while the first jitter compensation coil unit 2211', the second jitter compensation coil unit 2212', and the fifth jitter compensation coil unit 2215' are supplied with counterclockwise current. The third jitter compensation coil unit 2213' and the fifth jitter compensation coil unit 2215' are subjected to a negative force along the Y-axis, the second jitter compensation coil unit 2212' and the fourth jitter compensation coil unit 2214' are subjected to a positive force along the Y-axis, the first jitter compensation coil unit 2211' is subjected to a negative force along the X-axis, and the sixth jitter compensation coil unit 2216' is subjected to a positive force along the X-axis, thereby forming a torsional force. The jitter compensation coil 221' drives the imaging component to rotate clockwise around the optical axis through the jitter compensation base 21', thereby achieving image stabilization in the RZ direction.

[0248] Conversely, when it is necessary to control the imaging component to rotate counterclockwise around the Z-axis, the sixth jitter compensation coil unit 2216', the third jitter compensation coil unit 2213', and the fourth jitter compensation coil unit 2214' are supplied with counterclockwise current, while the first jitter compensation coil unit 2211', the second jitter compensation coil unit 2212', and the fifth jitter compensation coil unit 2215' are supplied with clockwise current. The third jitter compensation coil unit 2213' and the fifth jitter compensation coil unit 2215' are subjected to a force along the positive Y-axis, the second jitter compensation coil unit 2212' and the fourth jitter compensation coil unit 2214' are subjected to a force along the negative Y-axis, the first jitter compensation coil unit 2211' is subjected to a force along the positive X-axis, and the sixth jitter compensation coil unit 2216' is subjected to a force along the negative X-axis, thereby forming a torsional force. The jitter compensation coil 221' drives the imaging component to rotate counterclockwise around the optical axis through the jitter compensation base 21', thereby achieving image stabilization in the RZ direction.

[0249] Referring to the accompanying drawings of this invention Figure 23As shown, a driving device according to another aspect of the invention is described below. Unlike the above embodiment, where the jitter compensation base 21' is supported by the bottom frame 32', the outer frame 30' of the driving device further includes at least one frame ball 33', wherein the frame ball 33' is disposed between the bottom frame 32' and the jitter compensation base 21' to reduce the friction between the bottom frame 32' and the jitter compensation base 21'. It is understood that the frame ball 33' is used to support the distance between the jitter compensation base 21' and the bottom frame 32' and to reduce friction through rolling friction.

[0250] The four corners of the bottom of the jitter compensation base 21' have four downward-facing grooves, and the four corners of the support portion of the bottom frame 32' also have four upward-facing grooves. The grooves of the jitter compensation base are opposite to the grooves of the frame, forming a ball movement space for accommodating and restricting the movement of the frame ball 33'.

[0251] like Figure 34 As shown, the autofocus assembly 10' of the driving device further includes a focusing yoke 15', wherein the focusing yoke 15' is disposed on the focusing substrate 123' and located on the opposite side of the focusing coil 121'. The focusing yoke 15' is opposite to the focusing magnet 122' of the autofocus assembly 10', and the focusing yoke 15' can generate a magnetic force with the focusing magnet 122', thereby pulling the autofocus assembly 10' along the direction of the focusing yoke 15'. In short, the focusing yoke 15' can reset the autofocus assembly 10' through magnetic force.

[0252] Specifically, when the focusing coil 121' is energized by a driving signal, the electromagnetic interaction between the focusing coil 121' and the focusing magnet 122' generates a driving force along the Z-axis. The focusing base 11' can move along the Z-axis under the action of the driving force. When the driving signal of the focusing coil 121' is stopped, the focusing base 11' can return to its initial position by the magnetic force between the focusing magnet 122' and the focusing yoke 15'. It can be understood that the initial position refers to the position of the focusing base 11' before the driving signal is applied to the focusing coil 121'.

[0253] The optical image stabilization component 20' of the driving device further includes at least one stabilization yoke 25', wherein the stabilization yoke 25' is disposed on the fixed base 13' and is arranged back-to-back with the jitter compensation coil 221' relative to the jitter compensation substrate 223'. The stabilization yoke 25' can generate a magnetic force with the jitter compensation magnet 222', and the optical image stabilization component 20' is pulled along the direction of the stabilization yoke by the magnetic force. In short, the stabilization yoke 25' causes the optical image stabilization component 20' to reset through magnetic force.

[0254] When the jitter compensation coil 221' is energized by a driving signal, the electromagnetic interaction between the jitter compensation coil 221' and the jitter compensation magnet 222' generates a driving force that rotates along and / or around the optical axis. The jitter compensation base 21' can move along and / or around the optical axis under the action of this driving force. When the driving signal of the jitter compensation coil 221' is stopped, the jitter compensation base 21' can return to its initial position through the magnetic force between the jitter compensation magnet 222' and the anti-shake yoke 25'. It is worth noting that the number of anti-shake yokes 25' can be one or more; this application does not impose any limitation.

[0255] In other embodiments of the present invention, the anti-shake yoke 25' can be integrally molded onto the fixed base 13' by an embedded molding method, and the position of the anti-shake yoke 25' is opposite to the position of the jitter compensation magnet 222'. Using an embedded molding method can reduce the space occupied by the anti-shake yoke 25' in the drive device, which is beneficial for reducing the size of the drive device.

[0256] Referring to the accompanying drawings of this invention Figures 30 to 32As shown, a camera module according to a preferred embodiment of the present invention will be described below. The camera module includes a driving device 100', an imaging component 200', and a lens 300', wherein the driving device 100' can be implemented as the driving device described in any of the above preferred embodiments, and the specific structure of the driving device 100' will not be described in detail here. The imaging component 200' and the lens 300' are disposed on the driving device 100', wherein the lens 300' is disposed on the autofocus component 10' of the driving device 100', and the autofocus component 10' drives the movement of the lens 300' to achieve autofocus of the lens 300'. The driving device 100' is disposed at the upper end of the imaging component 200', and the optical image stabilization component 20' of the driving device 100' is connected to the imaging component 200' in a driving manner, wherein the optical image stabilization component 20' can drive the imaging component 200' to move, so as to realize the optical image stabilization of the camera module.

[0257] It is worth mentioning that, in this preferred embodiment of the present invention, the lens 300' is mounted to the focusing base 11' by means of adhesive, snap-fit, or threads. In other optional embodiments of the present invention, the focusing base 11' may be implemented as the lens barrel of the lens, wherein the optical lenses and other components of the lens 300' are housed within the focusing base 11'. In other words, optionally, the lens 300' and the focusing base 11' of the autofocus assembly 10' of the drive device 100' are an integral structure.

[0258] In detail, the imaging assembly 200' includes a filter assembly 210' and a circuit board assembly 220', wherein the circuit board assembly 220' is disposed below the filter assembly 210' along the optical axis. The filter assembly 210' of the imaging assembly 200' is fixed to the optical image stabilization assembly 20', and the optical image stabilization assembly 20' drives the filter assembly 210' and the circuit board assembly 220' to perform optical image stabilization.

[0259] The filter assembly 210' includes a filter holder 2110' and at least one filter 2120' mounted on the filter holder 2110'. The circuit board assembly 220' includes a circuit board 2210', at least one photosensitive chip 2220' mounted on the surface of the circuit board 2210', and at least one electronic component 2230', wherein the electronic component 2230' is located outside the photosensitive chip 2220'. Further, the filter holder 2110' includes a lens mount 2101' and a support portion 2102', wherein the support portion 2102' extends from the lens mount 2101' and is used to attach the filter 2120' to the support portion 2102'. The driving device 100' is mounted on the top surface of the lens mount 2101'.

[0260] It is worth mentioning that, in this preferred embodiment of the present invention, the optical image stabilization component 20' can achieve optical image stabilization by driving the entire imaging component 200' to move. The circuit board 2210' is tractably connected to the shake compensation base 21' of the optical image stabilization component 20'. That is, when the shake compensation coil 221' of the optical image stabilization component 20' is energized, the shake compensation base 21' drives the circuit board 2210' of the imaging component 200' to move or rotate in a specific direction to achieve optical image stabilization. It is also worth mentioning that, in this preferred embodiment of the present invention, the imaging component 200' is housed within the external frame 30'. Furthermore, the photosensitive chip 2220' is housed within the external frame 30', improving the sealing of the photosensitive chip 2220' and ensuring that the image of the photosensitive chip is not affected by dust during the manufacturing or use of the camera module.

[0261] Preferably, the top of the mirror base 2101' is connected to the jitter compensation base 21' in a driving manner. Since the jitter compensation base 21' is supported by the four support corners of the bottom frame 32', the four sides of the jitter compensation base 21' can be exposed and connected to the mirror base 2101'.

[0262] like Figure 31 and Figure 32As shown, the anti-shake ball 24' is located between the shake compensation base 21' and the fixed base 13', and the frame ball 33' is located between the shake compensation long base 21 and the bottom frame 32'. When the shake compensation coil 221' is energized, the shake compensation coil 221' interacts with the shake compensation magnet 222', generating a force selected perpendicular to the optical axis and / or around the optical axis. This drives the shake compensation base 21' to move the corresponding imaging component 200' in a direction perpendicular to the optical axis and / or around the optical axis, thus achieving optical image stabilization. The shake compensation base 21' can be supported by the anti-shake ball 24' and the frame ball 33', reducing the friction generated during optical image stabilization.

[0263] Referring to the accompanying drawings of this invention Figure 33 The diagram illustrates the conduction mode of the autofocus component 10' and the optical image stabilization component 20' of the driving device 100' of the camera module. In this preferred embodiment of the invention, the focusing substrate 123' and the image stabilization substrate 223' are separate structures, and both the focusing substrate 123' and the image stabilization substrate 223' are vertical. The focusing substrate 123' and the image stabilization substrate 223' are disposed around the outer periphery of the fixed base 13'. Preferably, the focusing substrate 123' and the image stabilization substrate 223' are implemented as flexible printed circuit boards (FPCs).

[0264] The camera module further includes a first connecting strip 500' and a second connecting strip 600', wherein the focusing substrate 123' is electrically connected to the circuit board 2210' of the imaging component 200' by the first connecting strip 500', and the shake compensation substrate 223' is electrically connected to the circuit board 2210' of the imaging component 200' by the second connecting strip 600'. Preferably, the first connecting strip 500' and the second connecting strip 600' are flexible printed circuit boards (FPCs).

[0265] It is understood that the number of the second connecting strips 600' can be one to three, and the plane in which the second connecting strips 600' lie along the optical axis is not the same as the plane in which the first connecting strip 500' lies along the optical axis, in order to avoid electromagnetic interference.

[0266] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A driving device, characterized in that, include: An autofocus assembly, wherein the autofocus assembly includes a focusing base, a focusing actuator, and a fixed base, wherein the focusing actuator includes at least a pair of focusing coils and at least a pair of focusing magnets, the focusing magnets being disposed on the focusing base, the focusing coils being supported by the fixed base and corresponding to the focusing magnets to drive the focusing base to move. and An optical image stabilization assembly includes a shake compensation base and a shake compensation actuator. The shake compensation actuator includes at least one shake compensation coil and at least one shake compensation magnet. The shake compensation magnet is supported on the fixed base. The shake compensation coil is disposed on the shake compensation base and corresponds to the shake compensation magnet to drive the shake compensation base to move relative to the fixed base. The shake compensation base drives the imaging component of the camera module to move and / or rotate to achieve optical image stabilization. The at least one shake compensation coil is disposed on another side of the side where the focusing coil is located.

2. The driving device according to claim 1, wherein the focusing actuator further comprises a focusing substrate, wherein the focusing coil is electrically connected to the focusing substrate, thereby the focusing substrate electrically connecting the focusing coil to the imaging assembly.

3. The driving device according to claim 2, wherein the fixed base includes a base plate and at least one supporting sidewall integrally extending upward from the outer side of the base plate, the fixed base further includes an actuator mounting portion, wherein the actuator mounting portion is formed on the supporting sidewall, the focusing coil is disposed on the actuator mounting portion of the fixed base, and wherein the focusing substrate is attached to the supporting sidewall.

4. The driving device according to claim 2, wherein the autofocus assembly further includes at least one focusing ball unit, at least one ball groove is provided between the focusing base and the fixed base, wherein the focusing ball unit is disposed in the ball groove, the focusing ball unit supports and maintains the distance between the focusing base and the fixed base, and provides the focusing base with respect to the fixed base in the direction of the optical axis.

5. The driving device according to claim 1, wherein the jitter compensation actuator further includes a jitter compensation substrate, wherein the jitter compensation substrate is electrically connected to the jitter compensation coil of the jitter compensation actuator.

6. The driving device according to claim 5, wherein the jitter compensation magnet further comprises three jitter compensation magnet groups, wherein the vertical plane of the first jitter compensation magnet group is opposite to the vertical plane of the focusing magnet, the vertical plane of the second jitter compensation magnet group is opposite to the vertical plane of the third jitter compensation magnet group, and is located on both sides of the first jitter compensation magnet group.

7. The driving device according to claim 6, wherein the jitter compensation coil is disposed on the jitter compensation substrate, wherein the jitter compensation substrate is disposed on the upper surface of the jitter compensation base along a direction perpendicular to the optical axis.

8. The driving device according to claim 7, wherein the jitter compensation coil further comprises a first jitter compensation coil unit, a second jitter compensation coil unit, a third jitter compensation coil unit, a fourth jitter compensation coil unit, and a fifth jitter compensation coil unit, wherein the first jitter compensation coil unit is disposed on the side facing the first jitter compensation magnetic group, the second jitter compensation coil unit and the third jitter compensation coil unit are disposed on the side facing the second jitter compensation magnetic group, and the fourth jitter compensation coil unit and the fifth jitter compensation coil unit are disposed on the side facing the third jitter compensation magnetic group.

9. The driving device according to claim 7, wherein the optical image stabilization component further includes at least one jitter magnetic sensing element, wherein the jitter magnetic sensing element is electrically connected to the jitter compensation substrate, and the jitter magnetic sensing element is disposed face-to-face with the jitter compensation magnetic assembly.

10. The driving device according to claim 7, wherein the optical image stabilization component further comprises at least one image stabilization ball, wherein the image stabilization ball is disposed between the jitter compensation base and the fixed base, and is used to support and maintain the distance between the jitter compensation base and the fixed base.

11. The driving device according to any one of claims 1 to 10, further comprising an outer frame, wherein the outer frame further comprises a housing and a bottom frame, the housing being fixed to the upper end of the fixed base, the bottom frame being fixed to the lower end of the fixed base, and the housing and the bottom frame forming a protective space, wherein the autofocus assembly and the optical image stabilization assembly are held in the protective space of the outer frame.

12. The driving device according to claim 8, wherein the jitter compensation coil further includes a sixth jitter compensation coil unit, wherein the first jitter compensation coil unit and the sixth jitter compensation coil unit are disposed on the same side of the jitter compensation base.

13. The driving device according to any one of claims 1 to 10, wherein the autofocus assembly further includes a pair of focusing magnetic yokes, wherein the focusing magnetic yokes are disposed on the focusing substrate and located on the opposite side of the focusing coil, and the optical image stabilization assembly further includes at least one image stabilization magnetic yoke, wherein the image stabilization magnetic yokes are disposed on the shake compensation base and located on the opposite side of the shake compensation coil.

14. The driving device according to any one of claims 1 to 10, wherein the autofocus assembly further includes at least one focus reset member, one end of the focus reset member being fixed to the focus base, and the other end of the focus reset member being fixed to the fixed base; the optical image stabilization assembly further includes at least one image stabilization reset member, one end of the image stabilization reset member being fixed to the shake compensation base, and the other end of the image stabilization reset member being fixed to the fixed base.

15. The drive device of claim 11, wherein the outer frame of the drive device further comprises at least one frame ball, wherein the frame ball is disposed between the bottom frame and the jitter compensation base so as to reduce the friction between the bottom frame and the jitter compensation base by the frame ball.

16. The driving device according to claim 6, wherein the focusing magnet is disposed on one side wall of the focusing base, the at least one jitter compensation magnet is supported at the bottom of the fixed base, and the three jitter compensation magnet groups and the focusing magnet are respectively disposed on the four non-intersecting sides of the driving device.

17. A camera module, characterized in that, include: The drive device as described in any one of claims 1 to 16; and An imaging assembly and a lens, wherein the lens and the imaging assembly are movably disposed on the driving device, the driving device driving the lens to move along an optical axis of the lens, and driving the imaging assembly to move and / or rotate about the optical axis in a direction perpendicular to the optical axis.

18. The camera module according to claim 17, wherein the imaging component includes a filter component and a circuit board component, wherein the circuit board component is disposed below the filter component along the optical axis, the filter component of the imaging component is fixed to the optical image stabilization component, and the optical image stabilization component drives the filter component and the circuit board component of the imaging component.

19. The camera module of claim 18, wherein the filter assembly includes a filter holder and at least one filter mounted on the filter holder. The circuit board assembly includes a circuit board, at least one photosensitive chip mounted on the surface of the circuit board, and at least one electronic component, wherein the electronic component is located outside the photosensitive chip.

20. The camera module of claim 17, wherein the shake compensation base further includes a support leg, wherein the support leg extends integrally downward from the base body and is connected to the imaging component.

21. The camera module of claim 17, wherein the camera module further comprises a first connecting strip and a second connecting strip, wherein the focusing substrate is electrically connected to the imaging component by the first connecting strip, and the shake compensation substrate is electrically connected to the imaging component by the second connecting strip.

22. The camera module according to claim 21, wherein the first connecting strip and the second connecting strip are flexible circuit boards.

23. The camera module according to claim 21, wherein the focusing substrate and the shake compensation substrate are separate structures, and the focusing substrate is a vertical structure and the shake compensation substrate is a horizontal structure.

24. A driving device, characterized in that, include: An autofocus assembly includes a focusing base, a focusing brake, and a fixed base. The focusing brake includes at least a pair of focusing coils and at least a pair of focusing magnets. The focusing coils are disposed on a side wall of the fixed base, and the focusing magnets are disposed on the focusing base and correspond to the focusing coils, so as to drive the focusing base to move for autofocus. and An optical image stabilization assembly, wherein the optical image stabilization assembly includes a shake compensation base and a shake compensation actuator, the shake compensation actuator includes at least one shake compensation coil and at least one shake compensation magnet, wherein the shake compensation magnet is disposed on at least one sidewall of the shake compensation base, the shake compensation coil is supported by the fixed base and corresponds to the shake compensation magnet to drive the shake compensation base to move relative to the fixed base, the shake compensation base drives the imaging component of the camera module to move and / or rotate to achieve optical image stabilization, and the focusing magnet is disposed on the side opposite and / or adjacent to the shake compensation magnet.

25. The driving device according to claim 24, wherein the focusing actuator further comprises a focusing substrate, wherein the focusing coil is electrically connected to the focusing substrate, and wherein the focusing substrate is disposed on an outer side wall of the fixed base.

26. The drive device according to claim 25, wherein the fixed base includes a base plate and at least one supporting sidewall integrally extending upward from the outer side of the base plate, the fixed base further having an actuator mounting portion, wherein the actuator mounting portion is formed on the supporting sidewall, the focusing coil is disposed on the actuator mounting portion of the fixed base, and wherein the focusing substrate is attached to the supporting sidewall.

27. The drive device according to claim 26, wherein the autofocus assembly further includes at least one focusing ball unit, at least one ball groove is provided between the focusing base and the fixed base, wherein the focusing ball unit is disposed in the ball groove, the focusing ball unit supports and maintains the distance between the focusing base and the fixed base, and provides the focusing base with respect to the fixed base in the direction of the optical axis.

28. The driving device according to claim 25, wherein the jitter compensation actuator further includes a jitter compensation substrate, wherein the jitter compensation substrate is electrically connected to the jitter compensation coil of the jitter compensation actuator.

29. The driving device according to claim 28, wherein the fixed base has a first outer side wall, a second outer side wall, a third outer side wall and a fourth outer side wall, wherein the focusing coil is disposed on the first outer side wall of the fixed base, and the shake compensation substrate is disposed on the second outer side wall, the third outer side wall and the fourth outer side wall of the fixed base.

30. The driving device according to claim 29, wherein the jitter compensation coil and the focusing coil are located on the side wall of the fixed base.

31. The driving device according to claim 29, wherein the jitter compensation magnet further comprises three jitter compensation magnet groups, wherein the first jitter compensation magnet group faces the second outer side wall of the fixed base, the second jitter compensation magnet group faces the third outer side wall of the fixed base, and the third jitter compensation magnet group faces the fourth outer side wall of the fixed base.

32. The driving device according to claim 31, wherein the jitter compensation coil further comprises a first jitter compensation coil unit, a second jitter compensation coil unit, a third jitter compensation coil unit, a fourth jitter compensation coil unit, and a fifth jitter compensation coil unit, wherein the first jitter compensation coil unit is disposed on the side facing the first jitter compensation magnetic group, the second jitter compensation coil unit and the third jitter compensation coil unit are disposed on the side facing the second jitter compensation magnetic group, and the fourth jitter compensation coil unit and the fifth jitter compensation coil unit are disposed on the side facing the third jitter compensation magnetic group.

33. The driving device according to claim 32, wherein the jitter compensation coil further includes a sixth jitter compensation coil unit, wherein the first jitter compensation coil unit and the sixth jitter compensation coil unit are disposed on the same side of the fixed base.

34. The drive device of claim 28, wherein the optical image stabilization component further comprises at least one image stabilization ball, wherein the image stabilization ball is disposed between the jitter compensation base and the fixed base, and is used to support and maintain the distance between the jitter compensation base and the fixed base.

35. The drive device according to any one of claims 24 to 34, further comprising an outer frame, wherein the outer frame further comprises a housing and a bottom frame, the housing being fixed to an upper end of the fixed base, the bottom frame being fixed to a lower end of the fixed base, and a protective space being formed by the housing and the bottom frame, wherein the autofocus assembly and the optical image stabilization assembly are held in the protective space of the outer frame.

36. The drive device of claim 35, wherein the outer frame of the drive device further comprises at least one frame ball, wherein the frame ball is disposed between the bottom frame and the jitter compensation base so as to reduce the friction between the bottom frame and the jitter compensation base by the frame ball.

37. The driving device according to claim 28, wherein the jitter compensation substrate and the focusing substrate are flexible circuit boards.

38. The drive device according to claim 35, wherein the autofocus assembly further includes a pair of focusing magnetic yokes, wherein the focusing magnetic yokes are disposed on the focusing substrate and located on the opposite side of the focusing coil, and the optical image stabilization assembly further includes at least one image stabilization magnetic yoke, wherein the image stabilization magnetic yoke is disposed on the fixed base and disposed back-to-back with the shake compensation coil.

39. A camera module, characterized in that, include: The drive device as described in any one of claims 24 to 38; and A lens and an imaging assembly, wherein the lens and the imaging assembly are movably disposed on the driving device, the driving device driving the lens to move along an optical axis of the lens, and driving the imaging assembly to move and / or rotate about the optical axis in a direction perpendicular to the optical axis.

40. The camera module according to claim 39, wherein the imaging component includes a filter component and a circuit board component, wherein the circuit board component is disposed below the filter component along the optical axis, the filter component of the imaging component is fixed to the optical image stabilization component, and the optical image stabilization component drives the filter component and the circuit board component of the imaging component.

41. The camera module of claim 40, wherein the filter assembly includes a filter holder and at least one filter mounted on the filter holder. The circuit board assembly includes a circuit board and at least one photosensitive chip mounted on the surface of the circuit board, and at least one electronic component, wherein the electronic component is located outside the photosensitive chip.

42. The camera module according to claim 40, wherein the circuit board is tractably connected to the image stabilization compensation base of the optical image stabilization assembly, and the image stabilization compensation base drives the circuit board of the imaging assembly to move or rotate in a specific direction.

43. The camera module according to claim 39, wherein the focusing substrate and the shake compensation substrate are separate structures, and the focusing substrate is vertical and the shake compensation substrate is vertical.

44. The camera module according to claim 43, wherein the camera module further comprises a first connecting strip and a second connecting strip, wherein the first connecting strip is electrically connected to the focusing substrate to the imaging assembly, and the second connecting strip is electrically connected to the image stabilization compensation substrate to the imaging assembly.

45. The camera module according to claim 44, wherein the first connecting strip and the second connecting strip are flexible circuit boards.

Images