Light steering assembly for optical anti-vibration and optical system

Abstract

A light steering assembly (20) for optical anti-shake and an optical system, the optical system comprising a base (11), the light steering assembly (20), and a lens assembly (30), the base (11) comprising a base side wall (112) and a base bottom surface (113); the light steering assembly (20) comprises a first supporting mechanism (21) arranged on the base (11) and supported by the base bottom face (113), a second supporting mechanism (22) installed on the first supporting mechanism (21), a reflection component (23) installed on the second supporting mechanism (22) and a first driving part (24) providing driving force for the reflection component (23), and the first driving part (24) comprises a first driving assembly (241) and a second driving assembly (242). The first driving assembly (241) is used for driving the reflection component (23) to move around the second rotating shaft, and the second driving assembly (242) is used for driving the reflection component (23) to move around the first rotating shaft; the lens assembly (30) is arranged on the light emitting side of the light steering assembly (20) and comprises at least one lens part (31), a lens carrier (32) and a second driving part (33), and the second driving part (33) drives the lens carrier (32) to drive the lens part (31) to move in the optical axis direction.

Description

Light steering component and optical system for optical image stabilization Technical Field

[0001] The present invention relates to the technical field of camera modules, and in particular to a light deflection component and an optical system for optical image stabilization. Background Art

[0002] Recently, the development of mobile communication technology has led to the widespread adoption of miniaturized and lightweight camera modules in portable devices such as smartphones. Consequently, these devices are often equipped with at least one camera module. This has led to increasing customer demand for camera module designs. Users not only require high-capacity and high-performance camera modules for their mobile devices, but also demand the development of camera modules that meet the standards of digital still cameras (DSLRs). Camera module development must meet the trend of miniaturization and lightweighting while maintaining high performance and capacity.

[0003] The periscope camera module uses a reflective prism placed at the front end to reflect the incident light beam to change the direction of the light. The light then passes through the lens assembly and color filter to reach the photosensitive chip. This allows the camera module to be installed horizontally in the electronic device, thereby ensuring that the long-focus camera module can meet the long-focus shooting effect while reducing the height of the telephoto camera module. Therefore, the periscope camera module can largely achieve the requirements of terminal device miniaturization and optical zoom. By changing the angle of the incident light, the longer lens structure can be reasonably changed, and the module height can be reduced.

[0004] The camera module uses a motor to achieve the optical autofocus function (hereinafter referred to as the focus or zoom function, AutoFocus, autofocus), zoom function and optical image stabilization function (hereinafter referred to as the anti-shake function: Optical Image Stabilization, optical image stabilization) during the shooting process. The focus or zoom function refers to the function of adjusting the focus by linearly moving the lens system in the direction of the optical axis through the motor, focusing on the subject, and producing a clear image at the image sensor (CMOS, CCD, etc.) located behind the lens. The anti-shake function refers to the technology of compensating for image blur due to shaking during shooting through motor anti-shake control. The image sensor captures the light entering through the lens system and converts it into an image signal.

[0005] The addition of focus or zoom functions, zoom functions, and anti-shake functions makes the drive structure of the camera module more complex. In addition, the camera module needs to be equipped with a corresponding actuator. On the one hand, this leads to an increase in the size of the camera module, and the installation space reserved for the camera module is also limited. On the other hand, the addition of the drive structure increases the weight of the lens and other components, requiring a greater driving force to achieve this, which increases the energy consumption of the module drive. In addition, the complexity of the camera module drive structure makes the assembly of the various components of the camera module more difficult and increases the process cost.

[0006] Summary of the Invention

[0007] In response to the above problems, the present invention provides a light deflection assembly and an optical system, which realize optical image stabilization through the light deflection assembly and realize focus or zoom through the lens assembly, so that it can be installed in the internal space of a predetermined shell, while realizing image stabilization and focus or zoom, and meeting the requirements of miniaturization.

[0008] One object of the present invention is to provide a light redirection assembly and an optical system, which realizes an anti-shake function by driving a reflective component through a first driving unit that does not include a lens and has a relatively low weight, and realizes a focusing or zooming function by a lens assembly, thereby significantly reducing the overall power consumption of the module.

[0009] One object of the present invention is to provide a light deflection assembly and an optical system, which realizes optical image stabilization through the light deflection assembly, and the lens assembly only realizes the focus or zoom function, and does not perform the anti-shake function. It is possible to reduce the structural components in a single lens module, so that the height of the lens assembly is smaller, thereby reducing the height of the camera module.

[0010] One object of the present invention is to provide a light redirection assembly and an optical system, wherein the lens assembly does not include a drive assembly for anti-shake, thereby having a relatively low weight, and the second drive unit provides sufficient driving force to the lens head, thereby achieving low-power drive.

[0011] One object of the present invention is to provide a light deflection assembly and an optical system. By adopting an integrally formed base, the first supporting mechanism, the first retaining element and the first driving assembly of the light deflection assembly are at least partially arranged on the bottom surface of the base, and the second retaining element is also arranged near the bottom side of the base, which can facilitate assembly in the case of an integrally formed base, and at the same time can effectively accommodate the driving assembly and support or retain the first and second retaining elements, thereby achieving miniaturization.

[0012] One object of the present invention is to provide a light redirection assembly and an optical system, which reduces the driving resistance of rotation around the second rotation axis by setting at least one of the first groove and the second groove to a groove shape that is adapted to the first retaining element in a cross section perpendicular to the second rotation axis.

[0013] One object of the present invention is to provide a light redirection assembly and an optical system, wherein the line connecting the centers of at least two first retaining elements constitutes a second rotation axis, and the first retaining element rolls in place around the second rotation axis in the first groove, guiding the first supporting mechanism and other components supported by it to rotate around the second rotation axis relative to the base, thereby achieving low-power driving of a large rotation angle.

[0014] One purpose of the present invention is to provide a light redirection assembly and an optical system, in which the first retaining member rolls in place around the second rotation axis in the space formed by the first groove and the second groove, driving the first supporting mechanism and the components supported by it to rotate around the second rotation axis, achieving large-angle rotation adjustment through small displacement, and at the same time being able to provide sufficient driving force in a limited space, thereby improving driving efficiency.

[0015] One object of the present invention is to provide a light redirection assembly and an optical system, wherein at least one of the third groove and the fourth groove is provided with a groove shape extending around the first rotation axis or extending along the optical axis (Z axis) and having a groove shape in a cross section perpendicular to the optical axis (Z axis), thereby reducing the resistance to rotation around the first rotation axis.

[0016] One object of the present invention is to provide a light redirection assembly and an optical system, wherein the second retaining element is a spherical component, the third groove is set as a hemispherical groove based on the spherical component, part of the fourth groove is a trapezoidal groove and part is a planar groove, and part of the second retaining element can roll in the hemispherical third groove to achieve low-power rotational motion in the plane.

[0017] One object of the present invention is to provide a light redirection assembly and an optical system, in which the second retaining element rolls in place in a hemispherical third groove in a direction parallel to the first rotation axis, guiding the second supporting mechanism and other components supported by it to rotate around the first rotation axis as the center, with a rotation radius of half of the line connecting the centers of at least two second retaining elements, thereby realizing rotational motion within a plane.

[0018] One object of the present invention is to provide a light redirection assembly and an optical system, wherein at least one of the first groove and the second groove opposite to each other is provided with a shape in which the width along the cross section parallel to the XY plane becomes smaller as the depth increases, and at least one of the third groove and the fourth groove opposite to each other is provided with a shape in which the width along the cross section parallel to the XY plane becomes smaller as the depth increases, so that the first holding element drives the first supporting mechanism and the parts supported by it to move around the second rotation axis and the second holding element drives the second supporting mechanism and the parts supported by it to move around the first rotation axis without interfering with each other.

[0019] One object of the present invention is to provide a light redirection assembly and an optical system, wherein the first rotation axis and the second rotation axis are on the same cross section and intersect each other perpendicularly to prevent the rotational movement of one layer of retaining elements from interfering with the other layer.

[0020] One object of the present invention is to provide a light redirection assembly and an optical system, in which the centers of the first retaining element and part of the second retaining element are located on the same XY cross-section to prevent the rotational movement of one layer of retaining elements from interfering with the movement of another layer of retaining elements.

[0021] One object of the present invention is to provide a light deflection assembly and an optical system, in which the first holding element and the second holding element are staggered along the X-axis direction (height direction) to reduce the thickness of the first supporting mechanism, thereby reducing the height of the light deflection assembly and realizing the miniaturization and thinness of the camera module.

[0022] One purpose of the present invention is to provide a light redirection assembly and an optical system, wherein the first retaining member rolls in place around the second rotation axis in the space formed by the first groove and the second groove and is arranged on the first layer, which can greatly reduce the driving energy consumption of the driving assembly.

[0023] One purpose of the present invention is to provide a light redirection assembly and an optical system, which uses a single driving magnet to respectively set a first magnetic attraction component and a second magnetic attraction component on the upper and lower sides to clamp two layers of retaining elements respectively. The two layers of retaining elements are stacked in the height direction and can be assembled based on an integrally formed base, making assembly convenient.

[0024] One purpose of the present invention is to provide a light deflection assembly and an optical system, which uses a single driving magnet to respectively arrange a first magnetic attraction component and a second magnetic attraction component on the upper and lower sides to clamp two layers of retaining elements, thereby reducing structural parts, making the structure compact and streamlined, and reducing the weight of the driving components of the optical image stabilization. While achieving miniaturization, it provides sufficient driving force to the reflective component to achieve image stabilization.

[0025] One object of the present invention is to provide a light redirection assembly and an optical system, wherein at least one of the fifth groove and the sixth groove is configured to have a groove shape that is adapted to the third retaining element in a cross section perpendicular to the Z axis, thereby reducing driving resistance.

[0026] One object of the present invention is to provide a light redirection assembly and an optical system, which simplifies the structure of the lens carrier, reduces the weight of the lens carrier, reduces power consumption, and at the same time, increases the focusing stroke distance of the lens carrier and the lens head through the structure of a single-sided third retaining element sharing a groove-shaped groove.

[0027] One object of the present invention is to provide a light deflection assembly and an optical system, wherein a third retaining element rolls in place within a hemispherical fifth groove with high precision and a stable motion mechanism, and has little impact on the title during the movement of the lens carrier along the optical axis, thereby making the imaging more stable.

[0028] One object of the present invention is to provide a light redirection component and an optical system, in which the focusing or zooming magnetic component is offset from the third driving magnet and the third retaining element in the YZ plane direction (horizontal direction), thereby reserving space for the movement of the third retaining element.

[0029] One object of the present invention is to provide a light deflection component and an optical system, in which a focus or zoom magnetic component indirectly generates an attractive force with a third driving magnet to clamp a third holding element. By providing an additional magnetic conductive sheet, it interacts with the focus or zoom magnetic component located on the bottom surface of the base through magnetization, thereby leaving sufficient space for the third holding component and the sixth groove of the lens carrier and the fifth groove on the bottom surface of the base.

[0030] To achieve the above objectives, according to one aspect of the present application, a light deflection assembly for optical image stabilization is provided, comprising: a base having a base bottom surface,

[0031] a first supporting mechanism, supported on the bottom surface of the base;

[0032] a second supporting mechanism supporting a reflective member and being disposed on the first supporting mechanism; and

[0033] a first driving portion, comprising a first driving assembly and a second driving assembly, wherein the second driving assembly drives the second supporting mechanism and the components supported by it to rotate about a first rotation axis, and the first driving assembly is used to drive the first supporting mechanism and the components supported by it to rotate about the second rotation axis;

[0034] The magnetic attraction component includes at least one first magnetic attraction component and at least one second magnetic attraction component, wherein the first magnetic attraction component is arranged on the bottom surface of the base, and the second magnetic attraction component is arranged on the second supporting mechanism.

[0035] The first driving assembly includes at least one first driving magnet, which is arranged on the first supporting mechanism, and the first magnetic attraction component and the second magnetic attraction component are respectively arranged on the upper and lower sides of the first driving magnet.

[0036] In some embodiments, the first drive component includes at least one first drive coil, which is arranged between the first drive magnetic attraction member and the first drive magnet, opposite to the first drive magnet, and drives the first support mechanism and the parts supported by it to rotate around the second rotation axis.

[0037] In some embodiments, the second magnetic attraction member is disposed on a lower side of the second supporting mechanism, opposite to the first driving magnet.

[0038] In some embodiments, the second driving assembly includes at least one second driving magnet and a second driving coil, which are arranged on the side of the second supporting mechanism to drive the component supported by the second supporting mechanism to rotate around the first rotation axis.

[0039] In some embodiments, an anti-shake holding assembly is further included, and the anti-shake holding assembly includes a first holding element and a second holding element, which are respectively arranged on the upper and lower sides of the first supporting mechanism.

[0040] In some embodiments, the first supporting mechanism is movably supported by the first holding element on the bottom surface of the base, the second supporting mechanism is movably supported on the first supporting mechanism by the second holding element, the attraction between the first magnetic attraction member and the first driving magnet clamps the first holding element, and the first holding element is held between the bottom surface of the base and the first supporting mechanism, the attraction between the second magnetic attraction member and the first driving magnet clamps the second holding element, and the second holding element is held between the first supporting mechanism and the second supporting mechanism.

[0041] In some embodiments, at least one of the first supporting mechanism and the base bottom is provided with a groove to accommodate the first retaining element, and the first supporting mechanism and other components supported by it rotate around the second rotation axis under the guidance of the first retaining element and the groove.

[0042] In some embodiments, at least one first groove is provided on the bottom surface of the base, and at least one second groove is provided on the lower side of the first supporting mechanism. At least one of the first groove and the second groove is configured to have a groove shape that is compatible with the first retaining element in a cross section perpendicular to the second rotation axis, so that the first retaining element rolls in place around the second rotation axis in the first groove or the second groove.

[0043] In some embodiments, at least one of the first supporting mechanism and the second supporting mechanism is provided with a groove to accommodate the second retaining element, and the second supporting mechanism and other components supported by it perform planar rotational motion around the first rotation axis under the guidance of the second retaining element and the groove.

[0044] In some embodiments, the upper side of the first supporting mechanism is provided with at least one third groove, and the lower side of the second supporting mechanism is provided with at least one fourth groove, and at least one of the third groove and the fourth groove is provided with a groove shape extending around the first rotation axis or extending along an optical axis and having a groove shape in a cross section perpendicular to the optical axis, wherein the optical axis is perpendicular to the first rotation axis and the second rotation axis.

[0045] According to another aspect of the present application, an optical system is provided, comprising:

[0046] A base, the base comprising a base sidewall and a base bottom surface;

[0047] The light redirecting assembly includes a reflective component for changing an optical path, wherein a light emitting surface of the reflective component defines an optical axis;

[0048] The lens assembly is arranged on the light-emitting side of the light deflection assembly, and includes at least one lens head, a lens carrier, and a second driving unit. The lens head is arranged on the lens carrier, and the second driving unit drives the lens carrier to drive the lens head to move along the optical axis.

[0049] Wherein, the second driving part includes at least one third driving magnet, and the third driving magnet is arranged on both sides of the lens carrier.

[0050] Among them, the lens assembly also includes at least one magnetic conductive sheet and at least one magnetic attraction component. The magnetic conductive sheet is arranged on the lens carrier, and the magnetic attraction component is arranged on the bottom surface of the base. Part of the magnetic conductive sheet is opposite to the third driving magnet and is located in the magnetic field of the third driving magnet, and part of it is arranged opposite to the magnetic attraction component.

[0051] In some embodiments, the second driving unit further includes at least one third driving coil, the third driving magnet is disposed on both sides of the lens carrier, and the third driving coil is disposed on opposite sides of the third driving magnet.

[0052] In some embodiments, the lens assembly further comprises at least one third retaining element, wherein the lens carrier is movably mounted in the base by the third retaining element to support part or all of the lens head.

[0053] In some embodiments, the third retaining element is disposed between the lens carrier and the bottom surface of the base.

[0054] In some embodiments, at least one of the lens carrier and the bottom surface of the base is provided with a groove to accommodate the third retaining element.

[0055] In some embodiments, the magnetic conductive sheet is located in the magnetic field of the third driving magnet and is magnetized by the magnetic field. The attraction between the magnetic conductive sheet and the magnetic component causes the lens carrier and the bottom surface of the base to clamp the third retaining element.

[0056] In some embodiments, the magnetic conductive sheet includes a main body, a first side wall and a second side wall. The first side wall and the second side wall are respectively arranged on both sides of the main body and can be formed by an integrally molded metal material.

[0057] In some embodiments, the first side wall and the second side wall are arranged on a side of the third driving magnet mounted on the lens carrier facing away from the third driving coil, and the magnetic conductive sheet is magnetized by the magnetic field of the third driving magnet.

[0058] In some embodiments, the main body of the magnetic conductive sheet is disposed opposite to the magnetic component disposed on the bottom surface of the base, and the resulting attraction presses the lens carrier toward the bottom surface of the base.

[0059] In some embodiments, in the horizontal direction, the magnetic attraction component is staggered with the third driving magnet and staggered with the third retaining element.

[0060] According to another aspect of the present application, a light steering assembly for optical image stabilization is provided, comprising:

[0061] a base having a base bottom surface;

[0062] A reflective component, configured to change an optical path, wherein a light-emitting surface of the reflective component defines an optical axis;

[0063] a first supporting mechanism, supported on the bottom surface of the base;

[0064] a second supporting mechanism that supports the reflecting member and is disposed on the first supporting mechanism; and

[0065] The first driving part includes a first driving assembly and a second driving assembly, wherein the first driving assembly is located between the first supporting mechanism and the bottom surface of the base, and the second driving assembly is located between the second supporting mechanism and the base.

[0066] In which, the second driving component drives the second supporting mechanism and the parts supported by it to rotate around the first rotation axis, and the first driving component is used to drive the first supporting mechanism and the parts supported by it to rotate around the second rotation axis, wherein the first rotation axis and the second rotation axis are perpendicular to the optical axis and are perpendicular to each other on the same plane.

[0067] In some embodiments, the base integrally extends upward from the base bottom surface to form a base side wall, a portion of the first drive assembly is disposed on the base bottom surface, and a portion of the second drive assembly is disposed on the base side wall.

[0068] In some embodiments, an anti-shake holding assembly is also included, which includes a first holding element and a second holding element. The first supporting mechanism is movably supported on the bottom surface of the base by the first holding element, and the second supporting mechanism is movably supported on the first supporting mechanism by the second holding element.

[0069] In some embodiments, at least one of the first supporting mechanism and the base bottom is provided with a groove to accommodate the first retaining element.

[0070] In some embodiments, at least one first groove is provided on the bottom surface of the base, and at least one second groove is provided on the lower side of the first supporting mechanism. The positions and numbers of the first groove and the second groove are consistent with the positions and numbers of the first retaining member, and the first groove and the second groove fix the first retaining element relative to each other.

[0071] In some embodiments, there are at least two first retaining elements arranged along the second rotation axis, and the first supporting mechanism and other components supported by it rotate around the second rotation axis under the guidance of the first retaining elements, the first grooves, and the second grooves.

[0072] In some embodiments, the line connecting the centers of the spheres of the first retaining element constitutes the second rotation axis, and the first retaining element rolls in place around the second rotation axis in the space formed by the first groove and the second groove, driving the first supporting mechanism and other components supported by it to rotate around the second rotation axis.

[0073] In some embodiments, at least one of the first supporting mechanism and the second supporting mechanism is provided with a groove to accommodate the second retaining element.

[0074] In some embodiments, the upper side of the first supporting mechanism is provided with at least one third groove, and the lower side of the second supporting mechanism is provided with at least one fourth groove, and the third groove and the fourth groove are relative to each other to fix the second retaining element, and the second supporting mechanism and other components supported by it perform planar rotational motion around the first rotation axis under the guidance of the second retaining element and the third groove and the fourth groove.

[0075] In some embodiments, the spherical center of the first retaining element and the spherical center of part of the second retaining element are located on the same cross section, and the first retaining element and the second retaining element are staggered in the height direction.

[0076] Further objectives and advantages of the present application will be fully reflected through understanding of the following description and drawings.

[0077] These and other objects, features and advantages of the present application are fully reflected in the following detailed description, drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] FIG1 is an overall schematic diagram of a camera module according to an embodiment of the present application.

[0079] FIG2 is a schematic diagram of the camera module according to an embodiment of the present application after the cover is removed.

[0080] FIG3 is a schematic diagram of a camera module according to an embodiment of the present application that does not include a photosensitive component.

[0081] FIG4 is a schematic diagram of an exploded view of a camera module according to an embodiment of the present application.

[0082] Figure 5A is a cross-sectional view of the camera module according to an embodiment of the present application taken along AA in Figure 3. Figure 5B is a cross-sectional view of the camera module according to an embodiment of the present application taken along BB in Figure 3.

[0083] Figure 5C is a cross-sectional view of the camera module according to an embodiment of the present application taken along CC in Figure 3.

[0084] Figure 5D is a cross-sectional view of the camera module according to an embodiment of the present application taken along DD in Figure 3.

[0085] FIG6 is a schematic diagram of a base of a camera module according to an embodiment of the present application.

[0086] FIG7 is a partial schematic diagram of the light redirecting assembly and the base of the camera module according to an embodiment of the present application.

[0087] FIG8 is a partial structural diagram of a light redirecting assembly of a camera module according to an embodiment of the present application.

[0088] FIG9 is a schematic structural diagram of a lens assembly of a camera module according to an embodiment of the present application.

[0089] Figure 10 is a schematic diagram of the camera module base, light steering assembly, and lens assembly according to an embodiment of the present application.

[0090] Figure 11 is a schematic diagram of the main circuit board, coil and base of the camera module according to an embodiment of the present application. DETAILED DESCRIPTION

[0091] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components set forth in the following description or illustrated in the following figures. The present invention is capable of other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used herein are for descriptive purposes and should not be considered restrictive. The use of "comprises," "includes," or "has" and variations thereof herein is intended to cover the items and their equivalents set forth below, as well as additional items. Unless otherwise specified or limited, the terms "mount," "connect," "support," and "couple" and variations thereof are used broadly and cover both direct and indirect mounting, connection, support, and coupling. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings.

[0092] Furthermore, on the first hand, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second hand, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0093] Figure 1 is an overall schematic diagram of the camera module 1, Figure 2 is a schematic diagram of the camera module 1 with the cover removed, Figure 3 is a schematic diagram of the camera module 1 excluding the photosensitive component, Figure 4 is a partially exploded schematic diagram of the camera module 1, Figures 5A-5D are cross-sectional views of the camera module 1 (taken along lines AA, BB, CC, and DD of Figure 3, respectively), and Figure 6 is a schematic diagram of the camera module base. Referring to Figures 1 to 6, the camera module 1 includes a housing 10, a light deflection assembly 20 disposed in the housing 10, a lens assembly 30, and a photosensitive component 40.

[0094] The light deflection assembly 20 is positioned in front of the lens assembly 30 or on the light-entering side of the lens assembly 30. It is used to redirect incident light. In some optional embodiments, a prism or mirror is used for reflection to achieve optical path deflection. The lens assembly 30 is positioned in the light-sensing path of the photosensitive assembly 40. The light deflection assembly 20 redirects the propagation direction of incident light entering the light deflection assembly 20, allowing the deflected light to pass through the optical path of the lens assembly 30. After the light path is corrected by the lens assembly 20, it is received by the photosensitive assembly 40 to form an image.

[0095] The housing 10 has a hollow cavity for accommodating the light deflection assembly 20, the lens assembly 30 and the photosensitive assembly 40. The housing 10 further includes a base 11 and a cover plate 12. In the housing 10, the light deflection assembly 20 is arranged on the light incident side of the lens assembly 30, and the photosensitive assembly 40 is arranged on the light exit side of the lens assembly 30. In other words, along the optical axis direction of the lens assembly, that is, the length direction of the housing, the light deflection assembly 20, the lens assembly 30 and the photosensitive assembly 40 are sequentially arranged from one side of the housing 10 to the other side of the housing. In some optional embodiments, the housing 10 is an integrally molded structure, which includes an integrally molded base 11 extending along the length direction to provide a better installation reference for the light deflection assembly 20, the lens assembly 30 and the photosensitive assembly 40.

[0096] 1 and 6 , the base 11 includes an opening 111 on the upper side, a base side wall 112 surrounding the opening, and a base bottom surface 113. The cover 12 is arranged at the opening 111 of the base 11. The base side wall 112, the base bottom surface 113 and the cover 12 of the base 11 together constitute the internal space of the shell 10. The cover 12 covers the opening 111, so that the internal space of the shell 10 is not visible. The internal space of the shell 10 includes a light deflection assembly installation area 114, a lens assembly installation area 115 and a photosensitive assembly installation area 116. Among them, the light deflection assembly installation area 114 is used to accommodate the light deflection assembly 20, the lens assembly installation area 115 is used to accommodate the lens assembly 30, and the photosensitive assembly installation area 116 is used to accommodate the photosensitive assembly 40. Light deflection assembly installation area 114 Lens assembly installation area 115 Photosensitive assembly installation area 116

[0097] The base 11 may be integrally formed, that is, the base bottom surface 113 is integrally formed, and the base sidewall 112 is integrally extended upward from the base bottom surface 113, so that the light deflection assembly 20, the lens assembly 30, and the photosensitive assembly 40 are disposed within the interior space of the housing 10. In some optional embodiments, the base 11 may also be formed by connecting separate base portions, each of which is provided with one or more of the light deflection assembly 20, the lens assembly 30, and the photosensitive assembly 40.

[0098] In some optional embodiments, the base sidewall 112 is provided with a first protruding wall 1121 and a second protruding wall 1122. The first protruding wall 1121 and the second protruding wall 1122 divide the interior space of the housing into a light deflection assembly installation area 114, a lens assembly installation area 115, and a photosensitive assembly installation area 116. The first protruding wall 1121 separates the light deflection assembly installation area 114 from the lens assembly installation area 115, i.e., the light deflection assembly 20 is disposed on one side of the first protruding wall 1121, and the lens assembly 30 is disposed on the other side of the first protruding wall 1121. The second protruding wall 1122 separates the lens assembly installation area 115 from the photosensitive assembly installation area 116, i.e., the lens assembly 30 is disposed on one side of the second protruding wall 1122, and the photosensitive assembly 40 is disposed on the other side of the second protruding wall 1122. The first protruding wall 1121 and the second protruding wall 1122 can be formed by extending inward from the base sidewall 112.

[0099] Referring to Figure 1 , the cover plate 12 includes a cover plate body 121 and an opening 122 for incident light to enter. The cover plate body 121 covers the opening 111 of the base 11. The opening 122 is located above the light deflection assembly 20. Incident light enters through the opening 122, is redirected by the light deflection assembly 20, passes through the lens assembly 30, and reaches the photosensitive assembly 40, thereby forming an image. The cover plate 12 can be integrally formed to cover the opening 111 of the base 11, or it can be formed from separate components that respectively cover the light deflection assembly mounting area 114, the lens assembly mounting area 115, and the photosensitive assembly mounting area 116.

[0100] 2 , the housing 10 of the camera module 1 may further include a gasket 13 , which is an elastic component and is disposed between the base 11 and the cover 12 to fill the structural gap between the base 11 and the cover 12 , thereby tightly fixing the base 11 and the cover 12 .

[0101] For ease of understanding, in this application, a spatial coordinate system is established for explanation. The direction of the optical axis of the lens is defined as the Z-axis direction, the first preset direction perpendicular to the plane where the optical axis is located is the X-axis direction, and the second preset direction perpendicular to the plane where the optical axis is located is the Y-axis direction. In the embodiment of the present application, the direction of the incident light is defined as the X-axis direction, the X-axis direction and the Y-axis direction are perpendicular to each other, and the Z-axis direction is perpendicular to the plane where the X-axis direction and the Y-axis direction are located. In other words, the X-axis, Y-axis, and Z-axis constitute a three-dimensional rectangular coordinate system.

[0102] The camera module 1 may have at least one of a focus or zoom function, a zoom function, and an optical image stabilization function. To achieve functions such as the focus or zoom function, the zoom function, and the optical image stabilization function, the camera module 1 needs to be equipped with a corresponding actuator, which increases the size of the camera module and limits the space reserved for its installation.

[0103] To this end, a camera module 1 is provided, in which different functions are realized through different functional components. The camera module 1 includes a first drive unit 24 and a second drive unit 33, wherein the first drive unit 24 is arranged in the light deflection assembly 20, and is used to drive the reflective component 23 for anti-shake, and the second drive unit 33 is arranged in the lens assembly 30, and is used to drive the lens unit 31 for focusing or zooming. The light deflection assembly 20 realizes the optical image stabilization function, and the lens assembly 40 realizes the focus or zoom function, so that it can be installed in the internal space of a predetermined housing 10, and meet the requirements of miniaturization while realizing anti-shake and focus or zoom.

[0104] The light deflection assembly 20 uses the first drive unit 24 to change the path of light entering through the opening 111, achieving optical image stabilization. When capturing images or moving images, user hand tremors or other tremors can cause blur or shakiness. The relative displacement corresponding to the tremor is transmitted to the first drive unit 24, which drives the reflective member 23 to correct for the user's hand tremors or other tremors.

[0105] The anti-shake function is achieved by the movement of the first drive unit 24, which is relatively light because it does not include a lens, etc., and thus power consumption can be significantly reduced. That is, to achieve the anti-shake function, the light on which the anti-shake is performed is directed to be incident on the lens assembly 40 by changing the direction of the light by the movement of the first drive unit 24 on which the reflective member 23 is provided, without moving the lens assembly 30 or the photosensitive assembly 40.

[0106] The light is received by the photosensitive component 40 through the lens assembly 30 and an image is formed, and the lens assembly 30 realizes the focusing function. When capturing an image, the lens assembly 30 adjusts the distance between the lens portion 31 and the photosensitive component 40 by moving the second driving portion 33 provided with the lens portion 31, so as to realize clear imaging. In some optional embodiments, the lens assembly 30 only realizes the focusing or zooming function, and does not perform the anti-shake function and the zooming function, thereby reducing the structural components and reducing the height size of the lens assembly 30. Of course, the lens assembly 30 can also perform anti-shake functions and zooming functions in addition to the focusing or zooming functions to meet the requirements of different shooting scenes. Referring to Figures 2 to 8, the light deflection assembly 20 according to an embodiment of the present application is explained. In the present application, the light deflection component 20 is arranged in the light deflection component installation area 114 of the base 11. The light deflection component 20 includes a first supporting mechanism 21 arranged on the base 11 and supported by the bottom surface 113 of the base, a second supporting mechanism 22 installed on the first supporting mechanism 21, a reflecting component 23 installed on the second supporting mechanism 22, and a first driving part 24 that provides driving force for the reflecting component 23.

[0107] The reflective component 23 is used to change the optical path. In some optional embodiments of the present application, the reflective component 23 is a mirror or a prism that can reflect light. As shown in Figure 5C, the reflective component 23 enables the light to achieve a 90° direction turn. The reflective component 23 can be a prism, including two right-angled surfaces 231 and 232 and a reflective surface 233, wherein the reflective surface 233 is an inclined surface, and each right-angled surface 231 and 232 forms a 45° angle with the reflective surface 233, and a first optical path 201 and a second optical path 202 that are perpendicular to each other are formed on the reflective surface 233, wherein the first optical path 201 is parallel to the direction of the incident light, and the second optical path 202 is parallel to the direction of the lens assembly. 30 is parallel to the optical axis direction, the lens assembly 30 and the photosensitive assembly 40 are arranged in the second optical path 202 in sequence, that is, the first optical path 201 is parallel to the X-axis direction, the second optical path 202 is parallel to the Z-axis direction, the right-angle surface 231 is the incident surface, and the right-angle surface 232 is the exit surface. The incident light enters along the first optical path 201 from the right-angle surface 231, is reflected by the reflecting surface 233 to change the light path, and is emitted from the reflecting component 23 along the second optical path 202 through the right-angle surface 232, passes through the lens assembly 30, and reaches the photosensitive assembly 40.

[0108] The reflective member 23 is fixedly mounted on the second support mechanism 22. The second support mechanism 22 includes a mounting surface 221, which may be an inclined surface adapted to the reflective surface 233 of the reflective member 23, so that the reflective member 23 is stably fixed on the second support mechanism 22.

[0109] The second support mechanism 22 is movably mounted in the interior space of the housing 10. In the embodiment of the present application, the second support mechanism 22 is capable of rotating about a first rotation axis and a second rotation axis. The first rotation axis is parallel to the X-axis, and the second rotation axis is parallel to the Y-axis.

[0110] The second supporting mechanism 22 is movably disposed on the first supporting member 21 and is rotatable relative to the first supporting mechanism 21 around a first rotation axis.

[0111] The first supporting mechanism 21 is movably disposed on the base 11 and is rotatable relative to the base 11 about a second rotation axis. The first driving portion 24 is adapted to drive the reflective member 23 to move, i.e., to drive the reflective member 23 to perform optical image stabilization. The first driving portion 24 includes a first driving assembly 241 and a second driving assembly 242, wherein the first driving assembly 241 is located between the first supporting mechanism 21 and the bottom surface 113 of the base, and the second driving assembly 242 is located between the second supporting mechanism 22 and the base 11. The first driving assembly 241 is used to drive the reflective member 23 to move about the second rotation axis, and the second driving assembly 242 is used to drive the reflective member 23 to move about the first rotation axis.

[0112] Among them, the first drive component 241 includes a first drive coil 2411 and a first drive magnet 2412. In some optional embodiments, the first drive magnet 2412 is arranged on the first support mechanism 21, and the first drive coil 2411 is arranged on the opposite side of the first drive magnet 2412. In one embodiment of the present application, the first drive magnet 2412 is arranged on the lower side of the first support mechanism 21, and the lower surface of the first support mechanism 21 is provided with a receiving groove for accommodating the first drive magnet 2412. A first drive coil groove 1141 is provided on the bottom surface 113 of the base corresponding to the installation area 114 of the light deflection component, and the first drive coil 2411 is arranged in the first drive coil groove 1141 of the base 11, so that the first drive coil 2411 is located in the magnetic field of the first drive magnet 2412.

[0113] The second drive assembly 242 includes a second drive coil 2421 and a second drive magnet 2422. In some optional embodiments, the second drive magnet 2422 is arranged on the second support mechanism 22, and the second drive coil 2421 is arranged on the opposite side of the second drive magnet 2422. In one embodiment of the present application, the number of the second drive magnets 2422 can be two, namely 2422a and 2422b, which are respectively arranged on both sides of the second support mechanism 22. The second support mechanism 22 is provided with a receiving groove on both sides opposite to the two long side walls of the base 11 for accommodating the second drive magnet 2422. The number of the second drive coils 2421 is the same as that of the second drive magnets 2422, namely 2421a and 2421b. The second drive coil slot 1142 is provided on the base side wall 112 corresponding to the light deflection component installation area 114 , and the second drive coil 2421 is arranged in the second drive coil slot 1142 of the base 11 , so that the second drive coil 2421 is located in the magnetic field of the second drive magnet 2422 .

[0114] The optical steering assembly 20 also includes an anti-shake holding assembly 25, which includes a first holding element 251 and a second holding element 252. The first support mechanism 21 is supported on the base 11 by the first holding element 251. The first holding element 251 has a spherical or cylindrical structure, allowing the first support mechanism 21 to rotate about the second rotation axis under the action of a drive coil or other type of drive assembly. The second support mechanism 22 is supported on the base 11 by the first holding element 251 and the second holding element 252. The second holding element 252 has a spherical or cylindrical structure, allowing the second support mechanism 22 to rotate about either the second rotation axis or the first rotation axis under the action of a drive coil or other type of drive assembly.

[0115] In some optional embodiments, the first retaining element 251 and the second retaining element 252 are respectively arranged on the upper side and the lower side of the first supporting mechanism 21, that is, the first retaining element 251 is arranged between the base 11 and the first supporting mechanism 21, and the second retaining element 252 is arranged between the first supporting mechanism 21 and the second supporting mechanism 22. The first supporting mechanism 21 and other components supported by it, including but not limited to the second holding element 252, the second supporting mechanism 22, the reflecting component 23 and other components, rotate around the second rotation axis under the guidance of the first holding element 251 and at least one second groove 211 provided on the first supporting mechanism 21 and / or at least one first groove 1143 provided on the base 11. In other words, the above structure drives the reflecting component 23 to rotate around the second rotation axis; in some optional embodiments, the second supporting mechanism 22 and other components supported by it, including but not limited to the reflecting component 23 and other components, rotate around the first rotation axis under the guidance of the second holding element 252 and at least one third groove 212 provided on the first supporting mechanism 21 and / or at least one fourth groove 222 provided on the second supporting mechanism. In other words, the above structure drives the reflecting component 23 to rotate around the first rotation axis.

[0116] It is worth mentioning that the base 11 in the present patent application preferably adopts an integrated molding solution. The above solution enables the first supporting mechanism 21, the first retaining element 251 and the first driving component 241 of the light redirection component 20 to be at least partially arranged on the bottom surface of the base 11. Furthermore, the second retaining element 252 is also arranged near the bottom side of the base 11, which can facilitate assembly in the case of an integrated molding base, and at the same time can effectively accommodate the above-mentioned driving component and support / retaining element to achieve miniaturization.

[0117] The first support mechanism 21 can be movably supported on the base bottom surface 113, and the first retaining element 251 is disposed between the first support mechanism 21 and the base bottom surface 113. At least one of the first support mechanism 21 and the base bottom surface 113 is provided with a groove to accommodate the first retaining element 251.

[0118] 5A-5C and FIG6 , in some optional embodiments, at least one first groove 1143 is provided on the bottom surface 113 of the base corresponding to the installation area 114 of the light redirection assembly, and at least one second groove 211 is provided on the lower side surface of the first supporting mechanism 21, and the first groove 1143 and the second groove 211 are relative to each other to fix the first retaining element 251.

[0119] The first retaining member 251 is partially inserted into the first groove 1143 of the base 11 and the second groove 211 of the first supporting mechanism 21 . The positions and numbers of the first groove 1143 and the second groove 211 may correspond to the positions and numbers of the first retaining member 251 .

[0120] The number of first retaining members 251 is at least two. In some optional embodiments of the present application, the first retaining member 251 may include retaining members 251a and 251b, arranged symmetrically along the Y-axis (i.e., the second rotation axis). The first groove 1143 of the base 11 includes first grooves 1143a and 1143b, arranged symmetrically along the Y-axis. The second groove 211 of the first support mechanism 21 includes second grooves 211a and 211b, arranged symmetrically along the Y-axis. The first groove 1143 and the second groove 211 fix the first retaining member 251 relative to each other. The first support mechanism 21 and other components supported by it rotate about the second rotation axis under the guidance of the first retaining member 251 and the first groove 1143 and / or the second groove 211. Therefore, at least one of the first groove 1143 and the second groove 211 is configured to have a groove shape that matches the first retaining member 251 in a cross-section perpendicular to the second rotation axis.

[0121] In some optional embodiments, the first retaining member 251 may be a spherical member. The first retaining member 251 may be partially inserted into the first groove 1143 provided in the base 11 or partially inserted into the second groove 211 of the first support mechanism 21. To enable the first retaining member 251 to rotate about the second rotation axis while limiting movement in other directions, at least one of the first groove 1143 and the second groove 211 is configured to match the first retaining member 251 and may be configured based on the shape of the first retaining member 251. In one embodiment of the present application, as shown in Figures 5A-6, the first retaining member 251 is a spherical member, the first groove 1143 is configured as a hemispherical groove based on the spherical member, and the second groove 211 is a groove-shaped groove. The first retaining member 251 can roll within the hemispherical first groove 1143.

[0122] In one embodiment of the present application, the first retaining element 251 is a spherical member. A hemispherical groove matching the first retaining element 251 is provided on the bottom surface 113 of the base to fix the lower half of the first retaining element 251. A groove-shaped groove is provided on the lower side of the first supporting mechanism 21 to fix the upper half of the first retaining element 251. The first supporting mechanism 21 and other components supported by it rotate around the second rotation axis under the guidance of the spherical first retaining element 251, the hemispherical groove on the bottom surface 113 of the base, and the groove-shaped groove of the first supporting mechanism 21. The first retaining element 251 may include retaining elements 251a and 251b. The line connecting the centers of the retaining elements 251a and 251b constitutes the second rotation axis. The first retaining element 251 rolls in place around the second rotation axis within the hemispherical first groove 1143, guiding the first supporting mechanism 21 and other components supported by it to rotate around the second rotation axis relative to the base 11.

[0123] It is worth mentioning that in the present application, the first retaining member 251 rolls in place around the second rotation axis in the space formed by the first groove 1143 and the second groove 211, driving the first supporting mechanism 21 and the components supported by it to rotate around the second rotation axis, achieving large-angle rotation adjustment through small displacement, while being able to provide sufficient driving force in a limited space and improve driving efficiency.

[0124] The second support mechanism 22 is movably supported on the first support mechanism 21, and the second retaining element 252 is disposed between the first support mechanism 21 and the second support mechanism 22. At least one of the first support mechanism 21 and the second support mechanism 22 is provided with a groove to accommodate the second retaining element 252. In some optional embodiments, at least one third groove 212 is provided on the upper side of the first support mechanism 21, and at least one fourth groove 222 is provided on the lower side of the second support mechanism 22. The third groove 212 and the fourth groove 222 are opposite to each other to fix the second retaining element 252.

[0125] The second holding element 252 is partially inserted into the third groove 212 of the first supporting mechanism 21 and the fourth groove 222 of the second supporting mechanism 22. The position and number of the third groove 212 and the fourth groove 222 may correspond to the position and number of the second holding member 252.

[0126] The number of the second retaining members 252 is at least two. In some optional embodiments of the present application, the second retaining member 252 may include second retaining elements 252a, 252b, and 252c. The second retaining elements 252a and 252b are arranged along the Y axis and are symmetrically disposed. The second retaining element 252c is disposed on the perpendicular midline of the second retaining elements 252a and 252b and is staggered with the second retaining elements 252a and 252b. The second support mechanism 22 and other components supported by the second retaining member 252a and 252b perform planar rotational motion around the first rotation axis under the guidance of the second retaining elements 252a and 252b and the third groove 212 and the fourth groove 222. The second retaining member 252c provides a stable support point, so that the second support mechanism 22 and other components supported by the second retaining member 252c remain stable during the planar rotation. Correspondingly, the upper side surface of the first supporting mechanism 21 is provided with the third groove 212, including third grooves 212a, 212b, and 212c, and the lower side surface of the second supporting mechanism 22 is provided with the fourth groove 222, including fourth grooves 222a, 222b, and 222c. The third groove 212 and the fourth groove 222 fix the second retaining element 252 relative to each other, that is, the second retaining element 252a is provided between the third groove 212a and the fourth groove 222a, the second retaining element 252b is provided between the third groove 212b and the fourth groove 222b, and the second retaining element 252c is provided between the third groove 212c and the fourth groove 222c. The second supporting mechanism 22 and other components supported by it can perform planar rotational motion around the first rotation axis under the guidance of the second retaining elements 252a, 252b and the third groove 212 and the fourth groove 222. Therefore, at least one of the third groove 212 and the fourth groove 222 is provided with a groove shape extending around the first rotation axis or extending along the optical axis (Z axis) and having a groove shape in a cross section perpendicular to the optical axis (Z axis).

[0127] In one embodiment of the present application, the fourth groove 222 of the second support mechanism 22 is partially trapezoidal and partially planar, to enable rotational movement of the second support mechanism 22 and other components about the first rotation axis. The fourth grooves 222a and 222b are trapezoidal, while the fourth groove 222c is a planar. The fourth grooves 222a, 222b, and 222c are arranged around the first rotation axis, so that the second retaining element 252 drives the second support mechanism 22 and other components to rotate about the first rotation axis.

[0128] In some optional embodiments, the second retaining member 252 may be a spherical member. The second retaining member 252 may be partially inserted into the third groove 212 of the first support mechanism 21 and the fourth groove 222 of the second support mechanism 22. To enable the second retaining member 252 to drive the second support mechanism 22 to rotate about the first rotation axis while limiting movement in other directions, at least one of the third groove 212 and the fourth groove 222 is configured to match the second retaining member 252, and may be configured based on the shape of the second retaining member 252. In one embodiment, as shown in Figures 5A-6, the second retaining member 252 is a spherical member, the third groove 212 is configured as a hemispherical groove based on the spherical member, and the fourth groove 222 is partially trapezoidal and partially planar. The second retaining member 252 is partially able to roll within the hemispherical third groove 212.

[0129] In one embodiment of the present application, the second retaining element 252 is a spherical component, and the upper side surface of the first supporting mechanism 21 is provided with a hemispherical groove matching the second retaining element 252 to fix the lower half of the second retaining element 252, and the lower side surface of the second supporting mechanism 22 is provided with a trapezoidal groove to fix the upper half of the second retaining element 252, wherein the second retaining element 252 includes retaining elements 252a, 252b and 252c, and the midpoint of the line connecting the centers of the spheres of the second retaining elements 252a and 252b is parallel to the X-axis to form the first rotation axis, the line connecting the centers of the spheres of the second retaining elements 252a and 252b constitutes a rotation diameter, and the second retaining element 252c forms a stable fulcrum, that is, the two spherical components form a planar rotation circle, and the third spherical component forms a planar rotation support point. The second retaining element 252 rolls in place in the hemispherical third groove 212 in a direction parallel to the first rotation axis, guiding the second supporting mechanism 22 and other components supported by it to rotate around the first rotation axis, with a rotation radius of half of the line connecting the centers of the spheres of the second retaining elements 252a and 252b, thereby realizing rotational motion within a plane.

[0130] In some optional embodiments, in order to prevent the first supporting mechanism 21 and its supported components from interfering with each other when the first retaining element 251 drives the first supporting mechanism 21 and its supported components to move around the second rotation axis, and the second retaining element 252 drives the second supporting mechanism 22 and its supported components to move around the first rotation axis, that is, when the second supporting mechanism 22 is driven by the second retaining element 252 to rotate around the first rotation axis, the first retaining element 251 inserted into the first groove 1143 and the second groove 211 does not move but needs to be fixed. Therefore, at least one of the first groove 1143 and the second groove 211, which are opposite to each other, is configured such that the width along the cross section parallel to the XY plane decreases as the depth increases. The cross section of the groove can be "V"-shaped, "U"-shaped, circular, or polygonal to limit the movement of the first retaining element 251 around the first rotation axis. Similarly, when the first supporting mechanism 21 is driven by the first retaining element 251 to rotate around the second rotation axis, the second retaining element 252 inserted into the third groove 212 and the fourth groove 222 does not move, and the width of at least one of the third groove 212 and the fourth groove 222 relative to each other along the cross-section parallel to the XY plane becomes smaller as the depth increases to limit the movement of the second retaining element 251 around the second rotation axis, which can be a "V" shape, a "U" shape, a circular shape or a polygonal shape. In addition, in order to facilitate the movement or rotation of the first retaining member 251 and the second retaining member 252, the depth of each groove in the first groove 1143, the second groove 211, the third groove 212, and the fourth groove 222 is smaller than the radius of the groove, so that the first retaining element 251 and the second retaining element 252 are not inserted as a whole in each groove, but are partially exposed, so that the first supporting mechanism 21 and the parts supported by it can be easily rotated under the guidance of the first retaining element 251 and the first groove 1143 and the second groove 211, and the second supporting mechanism 22 and the parts supported by it can be easily rotated under the guidance of the second retaining element 252 and the third groove 211 and the fourth groove 222.

[0131] In some embodiments of the present application, as shown in Figures 5A-5B, the first rotation axis and the second rotation axis are located on the same cross-section and intersect perpendicularly with each other. The centers of the retaining elements 251a and 251b of the first retaining element 251 and the retaining elements 252a and 252b of the second retaining element 252 are located on the same XY cross-section to prevent the rotational movement of one layer of retaining elements from interfering with the movement of the other layer of retaining elements.

[0132] In some embodiments of the present application, referring to Figures 5A-5B, the first retaining element 251 and the second retaining element 252 are staggered along the X-axis direction (height direction), thereby reducing the thickness of the first supporting mechanism 21 and thus reducing the height of the light deflection assembly 20, thereby achieving miniaturization and lightweighting of the camera module.

[0133] It is worth mentioning that in the present application, the first supporting mechanism 21 and other components supported by it, including but not limited to the second supporting mechanism 22, the reflective member 23, etc., rotate around the second rotation axis under the guidance of the second groove 211 of the first supporting mechanism 21 on the first retaining element 251 and the first groove 1143 on the bottom surface 113 of the base. The second supporting mechanism 22 and the components supported by it, including but not limited to the reflective member 23, etc., rotate around the first rotation axis under the guidance of the second retaining element 252 and the third groove 211 and the fourth groove 222. Therefore, the friction force that needs to be overcome for movement around the second rotation axis is greater than the friction force that needs to be overcome for movement around the first rotation axis. For this reason, the driving force required for movement around the second rotation axis is greater than the driving force required for movement around the first rotation axis. The first retaining member 251 rolls in place around the second rotation axis in the space formed by the first groove 1143 and the second groove 211, which can greatly reduce the driving energy consumption of the driving component.

[0134] When the first drive coil 2411 is energized, the first support mechanism 21, on which the first drive magnet 2412 is mounted, rotates about the second rotation axis due to the electromagnetic force between the first drive coil 2411 and the first drive magnet 2412, thereby driving other components supported by the first support mechanism 21, including but not limited to the second support mechanism 22 and the reflective member 23 located on the second support mechanism 22, to rotate about the second rotation axis. When the second drive coil 2421 is energized, the second support mechanism 22, on which the second drive magnet 2422 is mounted, rotates about the first rotation axis due to the electromagnetic force between the second drive coil 2421 and the second drive magnet 2422, thereby driving components such as the reflective member 23 supported by the second support mechanism 22 to rotate about the first rotation axis.

[0135] The light deflection assembly 20 also includes a magnetic attraction assembly 26. The magnetic attraction assembly 26 includes at least one first magnetic attraction member 261 and at least one second magnetic attraction member 262. The first magnetic attraction member 261 and the second magnetic attraction member 262 are respectively arranged on the upper and lower sides (along the X-axis) of the first driving magnet 2412, and attract each other with the first driving magnet 2412. In some optional embodiments, the first magnetic attraction member 261 is arranged on the bottom surface 113 of the base or on the circuit board 50 connected to the bottom surface 113 of the base, and is located on the lower side of the first driving magnet 2412. The first driving coil 2411 is arranged between the first magnetic attraction member 261 and the first driving magnet 2412. The second magnetic attraction member 262 is arranged on the lower side of the second supporting mechanism 22, and is arranged opposite to the first driving magnet 2412. In some optional embodiments, a seating groove is provided on the lower side of the second supporting mechanism 22 , and the second magnetic member 261 is provided in the seating groove or the second magnetic member 261 is integrally formed at the lower end of the second supporting mechanism 22 .

[0136] It is worth mentioning that in the present application, the base 11 preferably adopts an integrated molding solution. The above solution enables the first supporting mechanism 21 and the second supporting mechanism 22 to be tightly arranged on the base 11 through the attraction between the first magnetic member 261 and the second magnetic member 262 and the first driving magnet 212. On the other hand, the attraction between the first magnetic member 261 and the first driving magnet 212 clamps the first retaining element 251, so that the first retaining element 251 is tightly retained between the bottom surface 113 of the base and the first supporting mechanism 21. Similarly, the attraction between the second magnetic member 262 and the first driving magnet 212 clamps the second retaining element 252, so that the second retaining element 252 is tightly retained between the first supporting mechanism 21 and the first supporting mechanism 22.

[0137] Through a single driving magnet, a first magnetic attraction member 261 and a second magnetic attraction member 262 are respectively provided on the upper and lower sides to clamp the two layers of retaining elements. On the one hand, the number of structural parts is reduced, the structure is compact and streamlined, and the weight of the driving components of the optical image stabilization is reduced. While achieving miniaturization, sufficient driving force is provided to the reflective member 23 to achieve image stabilization. On the other hand, the two layers of retaining elements are stacked in the height direction and can be assembled based on an integrally formed base, making assembly convenient. In some optional embodiments, the light deflection assembly 20 also includes at least one sensing assembly 27, which detects the position of the first support mechanism 21 and the second support mechanism 222 through the sensing assembly 27 to provide feedback and achieve closed-loop control. The sensing assembly 27 includes a Y-axis sensing member 271 and an X-axis sensing member 272, which are respectively arranged on the inner side or outer side of the second drive coil 2421 and the first drive coil 2411.

[0138] 2 to 11 , the lens assembly 30 is disposed in the inner space of the housing 10 and in the lens assembly mounting area 115 of the base 11 .

[0139] The lens assembly 30 is arranged on the light-emitting side of the light deflection assembly 20, and the incident light enters the lens assembly 30 after being reflected by the light deflection assembly 20. The lens assembly 30 includes at least one lens head 31, a lens carrier 32, and a second driving unit 33. The lens carrier 32 is arranged on the base 11 and supported by the bottom surface 113 of the base. The lens head 31 is arranged on the lens carrier 32, and the second driving unit 33 drives the lens carrier 32 to move along the Z axis, driving the lens head 31 to translate along the Z axis. The second driving unit 33 is used to drive the lens carrier 32 and the lens head 31 to achieve focus or zoom function or zoom function. The lens assembly 30 does not include a driving component for anti-shake, and thus has a relatively low weight. The second driving unit 33 provides sufficient driving force to the lens head 31, thereby achieving low-power drive.

[0140] The lens unit 31 includes a lens barrel 311 and a lens group 312 mounted within the lens barrel 311. The lens group 311 is stacked along the Z-axis direction to form an optical system with the reflective member 23 of the light deflection assembly 20. The lens unit 31 includes a light-entering side and a light-exiting side opposite the light-entering side, wherein the light-entering side corresponds to the light deflection assembly 20, and the light-exiting side corresponds to the photosensitive assembly 40. That is, the light-entering side is the object side of the lens unit 31, and the light-exiting side is the image side of the lens unit 31. In some optional embodiments, in order to reduce the overall height of the camera module and the weight of the lens unit, a D-cut lens unit 31 is used, that is, the radial dimension in the X-axis direction is smaller than the radial dimension in the Y-axis direction.

[0141] The lens carrier 32 is movably mounted within the interior of the housing 10 and is movable along the Z-axis. It supports a portion or all of the lens head 31. The lens carrier 32 includes a mounting cavity 321. The mounting cavity 321 is U-shaped, i.e., has an open top, suitable for mounting the lens head 31 into the mounting cavity 321 from the top of the lens carrier 32.

[0142] The second drive unit 33 is used to drive the lens carrier 32 and the lens head 31 to move in the optical axis direction (Z axis) to change the distance between the lens head 31 and the photosensitive component 40, thereby achieving a focus or zoom function. The second drive unit 33 includes a third drive component 331, including at least one third drive coil 3311 and at least one third drive magnet 3312. In some optional embodiments, the third drive magnet 3312 is arranged on both sides of the lens carrier 32, and the third drive coil 3311 is arranged on the opposite side of the third drive magnet 3312. In some embodiments of the present application, mounting grooves are provided on the two side surfaces of the lens carrier 32 opposite to the base side wall 112 for accommodating the third drive magnet 3312. A third drive coil slot 1151 is provided on the base side wall 112 corresponding to the lens assembly mounting area. The third drive coil 3311 is arranged in the third drive coil slot 1151 of the base 11, so that the third drive coil 3311 is located in the magnetic field of the third drive magnet 3312.

[0143] When the third driving coil 3311 is energized, the lens carrier 32 on which the third driving magnet 3312 is mounted can move along the optical axis direction (Z axis) through the electromagnetic force between the third driving magnet 3312 and the third driving coil 3311, thereby driving the lens head 31 to move along the optical axis direction to achieve focusing.

[0144] The lens assembly 30 also includes a lens retaining assembly 34, which includes at least one third retaining element 341. The lens carrier 32 is movably supported on the base 11 by the third retaining element 341, allowing the lens carrier 32 to move along the optical axis (Z-axis) to achieve focusing. The third retaining element 341 is disposed between the lens carrier 32 and the base bottom surface 113. The lens carrier 32 and other supported components, including but not limited to the lens head 31, move along the optical axis (Z-axis) guided by the third retaining element 341 and at least one fifth groove 1152 provided in the base 11 and / or at least one sixth groove 322 provided in the lens carrier 32. Furthermore, the third retaining element 341 is also used to maintain the distance between the lens carrier 32 and the base 11.

[0145] As shown in FIG5D , the lens carrier 32 can be movably supported on the base bottom surface 113, with the third retaining element 341 disposed between the lens carrier 32 and the base bottom surface 113. At least one of the lens carrier 32 and the base bottom surface 113 is provided with a groove to accommodate the third retaining element 341. In some optional embodiments, at least one fifth groove 1152 is provided on the base bottom surface 113 corresponding to the lens assembly mounting area 115, and at least one sixth groove 322 is provided on the underside of the lens carrier 32. The fifth groove 1152 and the sixth groove 322 face each other to secure the third retaining element 341.

[0146] The third retaining member 341 is partially inserted into the fifth groove 1152 of the base 11 and the sixth groove 322 of the lens carrier 32. The positions and numbers of the fifth groove 1152 and the sixth groove 322 correspond to the positions and numbers of the third retaining member 341.

[0147] In some optional embodiments of the present application, the third retaining member 341 may include third retaining elements 341a, 341b, 341c, and 341d. The third retaining elements 341a and 341b are arranged along the Z axis, while the third retaining elements 341c and 341d are arranged along the Z axis. The third retaining elements 341a and 341c are symmetrically arranged along the Y axis, while the third retaining elements 341b and 341d are symmetrically arranged along the Y axis. The fifth groove 1152 of the base 11 includes fifth grooves 1152a, 1132b, 1132c, and 1132d, corresponding to the positions of the third retaining member 341. The sixth groove 322 of the lens carrier 321 includes sixth grooves 322a, 321b, 321c, and 321d, corresponding to the positions of the third retaining member 341. The fifth groove 1152 and the sixth groove 322 secure the third retaining member 341 relative to each other.

[0148] The third retaining member 341 can be partially inserted into the fifth groove 1152 provided on the base 11 or can be partially inserted into the sixth groove 322 of the lens carrier 32. In order to enable the lens carrier 32 and other components supported by it to move along the optical axis direction (Z axis) under the guidance of the third retaining member 341 and the fifth groove 1152 provided on the base 11 and / or the sixth groove 322 of the lens carrier 32, and to restrict movement in other directions, at least one of the fifth groove 113 and the sixth groove 322 is configured to have a groove shape that is adapted to the third retaining member 341 in a cross section perpendicular to the Z axis.

[0149] In some embodiments of the present application, to achieve stable support, at least one of the fifth groove 1152 and the sixth groove 322 can be configured as a groove that matches the third retaining element 341 and can be configured based on the shape of the third retaining element 341. The third retaining element 341 can be a spherical member, the fifth groove 1152 is configured as a hemispherical groove based on the third retaining element 341, and the sixth groove 322 is in the shape of a groove extending along the Z-axis direction. The third retaining element 341 can roll within the hemispherical fifth groove 1152. In some alternative embodiments, the sixth grooves 322a, 321b, 321c, and 321d may be independent slots, or the sixth grooves 322a and 321b may be connected, while the sixth grooves 322c and 321d may be connected, forming elongated slots extending along the Z-axis on both sides of the lower side of the lens carrier 32. Specifically, the third retaining elements 341a and 341b share a slot, while the third retaining elements 341c and 341d share a slot. This structure, in which the third retaining elements on one side share a slot, simplifies the structure of the lens carrier 32, reduces its weight, reduces power consumption, and increases the focusing distance of the lens carrier 32 and the lens head 31.

[0150] In one embodiment of the present application, the third retaining element 341 is a spherical component, the base 11 uses a hemispherical groove that matches the third retaining element 341 to fix the lower half of the third retaining element 341, and the lens carrier 32 uses a groove-shaped groove to fix the upper half of the third retaining element 341, which is used to guide the lens carrier 32 and the lens part 31 supported by it to move along the optical axis (Z axis) under the driving action of the third driving assembly 331. Among them, the third retaining element 341 rolls in place in the hemispherical fifth groove 1152, with high precision and stable motion mechanism, and has little impact on the title during the movement of the lens carrier 32 along the optical axis, thereby making the imaging more stable. Referring to Figures 4 to 9, the lens assembly 30 also includes at least one magnetic conductive sheet 35 and at least one focus or zoom magnetic attraction assembly 36. The magnetic conductive sheet 35 is disposed within the lens carrier 32, and the focus or zoom magnetic assembly 36 is disposed on the base bottom surface 113 corresponding to the lens assembly mounting area 115. The magnetic conductive sheet 35 and the focus or zoom magnetic assembly 36 generate a mutual attractive force. The attractive force between the magnetic conductive sheet 35 and the focus or zoom magnetic assembly 36 causes the lens carrier 32 and the base bottom surface 113 to clamp the third retaining element 341, tightly retaining the third retaining element 341 between the lens carrier 32 and the base bottom surface 113. The lens carrier 32 is pressed toward the base bottom surface 113, maintaining contact between the third retaining element 341 and the lens carrier 32 and the base bottom surface 113. In the YZ plane (horizontal direction), the focus or zoom magnetic assembly 36 is offset from the third driving magnet 3312 and the third retaining element 341.

[0151] In some optional embodiments, the magnetic conductive sheet 35 includes a main body 351, a first side wall 352, and a second side wall 353. The side walls 352 and 353 are disposed on either side of the main body 351 and can be formed from an integrally molded metal material. The first side wall 352 and the second side wall 353 are disposed on the side of the third drive magnet 3312 mounted on the lens carrier 32 facing away from the third drive coil 3311. They are magnetized by the magnetic field of the third drive magnet 3312. The main body 351 of the magnetic conductive sheet 35 is disposed opposite the focus or zoom magnetic assembly 36 disposed on the bottom surface 113 of the base, thereby generating a mutual attractive force that tightly clamps the third retaining element 341. The magnetic conductive sheet 35 can be integrally molded within the lens carrier 32.

[0152] It is worth mentioning that in the present application, the focus or zoom magnetic component 36 indirectly generates attraction with the third driving magnet 3312 to clamp the third holding element 341, and by providing an additional magnetic conductive sheet 35, through magnetization, it interacts with the focus or zoom magnetic component 36 located on the bottom surface 113 of the base, and makes enough space for the position of the third holding member 341 and the sixth groove 322 of the lens carrier 32 and the fifth groove 1153 on the bottom surface 113 of the base, replacing the original direct setting of the focus or zoom magnetic component 36. It is placed on the bottom surface 113 of the base opposite to the third driving magnet 3312, so that the setting position of the third holding element 341 and the fifth groove 1153 on the bottom surface 113 of the base is limited by the position setting of the focus or zoom magnetic attraction component 36. In addition, the clamping force of the original focus or zoom magnetic attraction component 36 and the third driving magnet 3312 is limited by the height distance of the third holding element 341, and the distance between the magnetic conductive sheet 35 and the focus or zoom magnetic attraction component 36 can be close enough to provide sufficient clamping force for clamping the third holding element 341.

[0153] The camera module 1 also includes a main circuit board 50. The first drive unit 24 includes the first drive coil 2411 and the second drive coil 2421 for driving the reflective member 23. The second drive unit 33 includes the third drive coil 3311 for driving the lens unit 31. The first drive coil 2411, the second drive coil 2421, and the third drive coil 3311 are disposed on the main circuit board 50. The first drive coil slot 1141, the second drive coil slot 1142, and the third drive coil slot 1151 are disposed on the base 11. When the main circuit board 50 is mounted on the base 11, the coils are exposed to the interior space of the base 11.

[0154] Figure 11 shows a schematic perspective view of the main circuit board 50 and the coils and components mounted thereon. In some optional embodiments, the main circuit board 50 includes a base substrate 51, a first side substrate 52, and a second side substrate 53. The first side substrate 52 and the second side substrate 53 are arranged substantially parallel to each other, and the base substrate 51 connects the first side substrate 52 and the second side substrate 53. Electrical connection terminals for connecting external power and signals can be connected to any portion of the base substrate 51, the first side substrate 52, and the second side substrate 53, thereby achieving circuit signal connectivity.

[0155] In some optional embodiments, the first driving coil 2411 and the Y-axis sensor 272 for driving the first driving portion 24 of the light deflection assembly 20 are disposed on the inner surface of the bottom substrate 51. The second driving coil 2421 and the X-axis sensor 271 for driving the first driving portion 24 of the light deflection assembly 20 are disposed on the inner surfaces of the first side substrate 52 and the second side substrate 53. The third driving coil 3311 for driving the second driving portion 33 of the lens assembly 30 is disposed on the inner surfaces of the first side substrate 52 and the second side substrate 53.

[0156] The main circuit board 50 is arranged on the outside of the base 11 and can be integrally connected or the circuit boards with the driving coils installed thereon can be arranged separately from each other.

[0157] 1 and 2 , the photosensitive component 40 is disposed within the interior space of the housing 10 and within the photosensitive component mounting area 116 . The photosensitive component 40 includes a circuit board 41 , a photosensitive element 42 , and a filter element 43 . The photosensitive element 42 is conductively connected to the circuit board 41 , and the filter element 43 is disposed in the light sensing path of the photosensitive component 40 , such that light entering the photosensitive component 40 from the lens assembly 30 is filtered upon passing through the filter element 43 and then received by the photosensitive element 42 for imaging. The filter element 43 can be disposed on the housing 10 or on the photosensitive element 42 .

[0158] When the camera module 1 is installed in an electronic device, the optical axis direction (Z axis) of the lens assembly 20 in the camera module 1 is consistent with the length direction or width direction of the electronic device, and the X axis direction is consistent with the thickness direction of the electronic device terminal. Without increasing the thickness of the electronic device, the periscope camera module is installed in the electronic device, thereby realizing the lightweight and miniaturization of the electronic device terminal.

[0159] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A light deflection assembly for optical image stabilization, comprising: a base having a base bottom surface, a first supporting mechanism, supported on the bottom surface of the base; a second supporting mechanism supporting a reflective member and being disposed on the first supporting mechanism; as well as a first driving portion, comprising a first driving assembly and a second driving assembly, wherein the second driving assembly drives the second supporting mechanism and the components supported by it to rotate about a first rotation axis, and the first driving assembly is used to drive the first supporting mechanism and the components supported by it to rotate about the second rotation axis; The magnetic attraction component includes at least one first magnetic attraction component and at least one second magnetic attraction component, wherein the first magnetic attraction component is arranged on the bottom surface of the base, and the second magnetic attraction component is arranged on the second supporting mechanism. The first driving assembly includes at least one first driving magnet, which is arranged on the first supporting mechanism, and the first magnetic attraction component and the second magnetic attraction component are respectively arranged on the upper and lower sides of the first driving magnet.

2. The light redirecting assembly according to claim 1, wherein: The first driving component includes at least one first driving coil, which is arranged between the first driving magnetic attraction component and the first driving magnet, opposite to the first driving magnet, and drives the first supporting mechanism and the parts supported by it to rotate around the second rotation axis.

3. The light redirecting assembly according to claim 2, wherein: The second magnetic attraction member is provided on the lower side of the second support mechanism, facing the first driving magnet.

4. The light redirecting assembly according to claim 3, wherein: The second driving assembly includes at least one second driving magnet and a second driving coil, which are arranged on the side of the second supporting mechanism to drive the component supported by the second supporting mechanism to rotate around the first rotation axis.

5. The light redirecting assembly according to claim 4, wherein: It also includes an anti-shake holding component, which includes a first holding element and a second holding element, which are respectively arranged on the upper and lower sides of the first supporting mechanism.

6. The light redirection assembly according to claim 5, wherein the first supporting mechanism is movably supported by the first holding element on the bottom surface of the base, the second supporting mechanism is movably supported by the second holding element on the first supporting mechanism, the attraction between the first magnetic attraction member and the first driving magnet clamps the first holding element, and the first holding element is held between the bottom surface of the base and the first supporting mechanism, the attraction between the second magnetic attraction member and the first driving magnet clamps the second holding element, and the second holding element is held between the first supporting mechanism and the second supporting mechanism.

7. The light redirecting assembly according to claim 6, wherein: At least one of the first supporting mechanism and the base bottom is provided with a groove to accommodate the first retaining element. The first supporting mechanism and other components supported by it rotate around the second rotation axis under the guidance of the first retaining element and the groove.

8. The light redirecting assembly according to claim 7, wherein: At least one first groove is provided on the bottom surface of the base, and at least one second groove is provided on the lower side of the first supporting mechanism. At least one of the first groove and the second groove is configured to have a groove shape that is compatible with the first retaining element in a cross section perpendicular to the second rotation axis, so that the first retaining element rolls in place around the second rotation axis in the first groove or the second groove.

9. According to the light redirection assembly according to claim 8, at least one of the first supporting mechanism and the second supporting mechanism is provided with a groove to accommodate the second retaining element, and the second supporting mechanism and other components supported by it perform planar rotational motion around the first rotation axis under the guidance of the second retaining element and the groove.

10. The light redirecting assembly according to claim 9, wherein: The upper side surface of the first supporting mechanism is provided with at least one third groove, and the lower side surface of the second supporting mechanism is provided with at least one fourth groove, and at least one of the third groove and the fourth groove is provided with a groove shape extending around the first rotation axis or extending along an optical axis and having a groove shape in a cross section perpendicular to the optical axis, wherein the optical axis is perpendicular to the first rotation axis and the second rotation axis.

11. An optical system, comprising: A base, the base comprising a base sidewall and a base bottom surface; The light redirecting assembly includes a reflective component for changing an optical path, wherein a light emitting surface of the reflective component defines an optical axis; The lens assembly is arranged on the light-emitting side of the light-redirecting assembly, and includes at least one lens head, a lens carrier and a second The lens head is provided on the lens carrier, and the second driving part drives the lens carrier to drive the lens head to move along the optical axis. Wherein, the second driving part includes at least one third driving magnet, and the third driving magnet is arranged on both sides of the lens carrier. Among them, the lens assembly also includes at least one magnetic conductive sheet and at least one magnetic attraction component. The magnetic conductive sheet is arranged on the lens carrier, and the magnetic attraction component is arranged on the bottom surface of the base. Part of the magnetic conductive sheet is opposite to the third driving magnet and is located in the magnetic field of the third driving magnet, and part of it is arranged opposite to the magnetic attraction component.

12. The optical system according to claim 11, wherein: The second driving unit further includes at least one third driving coil. The third driving magnet is disposed on both sides of the lens carrier, and the third driving coil is disposed on opposite sides of the third driving magnet.

13. The optical system according to claim 12, wherein: The lens assembly further comprises at least one third holding element, wherein the lens carrier is movably mounted in the base by the third holding element to support part or the entire lens head.

14. The optical system according to claim 13, wherein: The third holding element is disposed between the lens carrier and the bottom surface of the base.

15. The optical system according to claim 14, wherein: At least one of the lens carrier and the bottom surface of the base is provided with a groove to accommodate the third retaining element.

16. The optical system according to claim 15, wherein: The magnetic conductive sheet is located in the magnetic field of the third driving magnet and is magnetized by the magnetic field. The attraction between the magnetic conductive sheet and the magnetic attraction component causes the lens carrier and the bottom surface of the base to clamp the third holding element.

17. The optical system according to claim 16, wherein: The magnetic conductive sheet includes a main body, a first side wall and a second side wall. The first side wall and the second side wall are respectively arranged on both sides of the main body and can be formed by integrally forming a metal material.

18. The optical system according to claim 17, wherein: The first side wall and the second side wall are arranged on a side of the third driving magnet mounted on the lens carrier facing away from the third driving coil. The magnetic conductive sheet is magnetized by the magnetic field of the third driving magnet.

19. The optical system according to claim 18, wherein The main body of the magnetic conductive sheet is arranged opposite to the magnetic component arranged on the bottom surface of the base, and the formed attraction presses the lens carrier toward the bottom surface of the base.

20. The optical system according to claim 10, wherein: In the horizontal direction, the magnetic attraction component is staggered with the third driving magnet and staggered with the third retaining element.

21. A light steering assembly for optical image stabilization, comprising: a base having a base bottom surface; A reflective component, configured to change an optical path, wherein a light-emitting surface of the reflective component defines an optical axis; a first supporting mechanism, supported on the bottom surface of the base; a second supporting mechanism, supporting the reflecting member and being disposed on the first supporting mechanism; as well as The first driving part includes a first driving assembly and a second driving assembly, wherein the first driving assembly is located between the first supporting mechanism and the bottom surface of the base, and the second driving assembly is located between the second supporting mechanism and the base. In which, the second driving component drives the second supporting mechanism and the parts supported by it to rotate around the first rotation axis, and the first driving component is used to drive the first supporting mechanism and the parts supported by it to rotate around the second rotation axis, wherein the first rotation axis and the second rotation axis are perpendicular to the optical axis and are perpendicular to each other on the same plane.

22. The light redirecting assembly of claim 21, wherein: The base integrally extends upward from the base bottom surface to form a base side wall. Part of the first driving assembly is arranged on the base bottom surface, and part of the second driving assembly is arranged on the base side wall.

23. The light redirecting assembly of claim 22, wherein: It also includes an anti-shake holding assembly, which includes a first holding element and a second holding element. The first supporting mechanism is movably supported on the bottom surface of the base by the first holding element, and the second supporting mechanism is movably supported on the first supporting mechanism by the second holding element.

24. The light redirecting assembly of claim 23, wherein: At least one of the first supporting mechanism and the base bottom is provided with a groove to accommodate the first retaining element.

25. The light redirecting assembly of claim 24, wherein: At least one first groove is provided on the bottom surface of the base, and at least one second groove is provided on the lower side of the first supporting mechanism. The positions and numbers of the first groove and the second groove are consistent with the positions and numbers of the first retaining member, and the first groove and the second groove fix the first retaining element relative to each other.

26. The light redirecting assembly of claim 25, wherein: There are at least two first holding elements arranged along the second rotation axis. The first supporting mechanism and other components supported by it rotate around the second rotation axis under the guidance of the first holding elements, the first groove and the second groove.

27. The light redirecting assembly of claim 26, wherein: The line connecting the centers of the spheres of the first retaining element constitutes the second rotation axis. The first retaining element rolls in place around the second rotation axis in the space formed by the first groove and the second groove, driving the first supporting mechanism and other components supported by it to rotate around the second rotation axis.

28. The light redirecting assembly of claim 27, wherein: At least one of the first supporting mechanism and the second supporting mechanism is provided with a groove to accommodate the second retaining element.

29. The light redirecting assembly of claim 28, wherein: The upper side of the first supporting mechanism is provided with at least one third groove, and the lower side of the second supporting mechanism is provided with at least one fourth groove. The third groove and the fourth groove are relative to each other to fix the second retaining element. The second supporting mechanism and other components supported by it perform planar rotational motion around the first rotation axis under the guidance of the second retaining element and the third groove and the fourth groove.

30. The light redirecting assembly of claim 29, wherein: The center of the sphere of the first retaining element and the center of the sphere of part of the second retaining element are located on the same cross section, and the first retaining element and the second retaining element are staggered in the height direction.

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