WO2024067162A1

WO2024067162A1 - Light steering assembly for optical image stabilization, and optical system

Info

Publication number: WO2024067162A1
Application number: PCT/CN2023/119067
Authority: WO
Inventors: 周良
Original assignee: 宁波舜宇光电信息有限公司
Priority date: 2022-09-28
Filing date: 2023-09-15
Publication date: 2024-04-04

Abstract

A light steering assembly for optical image stabilization, and an optical system. The optical system comprises a base (11), a light steering assembly (20) and a lens assembly (30), wherein the base (11) comprises a base side wall (112) and a base bottom face (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) mounted on the first supporting mechanism (21), a reflecting member (23) mounted on the second supporting mechanism (22), and a first driving portion (24) for providing a driving force for the reflecting member (23), the first driving portion (24) comprising a first driving assembly (241) and a second driving assembly (242), the first driving assembly (241) being configured to drive the reflecting member (23) to move around a second rotation axis, and the second driving assembly (242) being configured to drive the reflecting member (23) to move around a first rotation axis; and the lens assembly (30) is arranged on a light emergent side of the light steering assembly (20) and comprises at least one lens portion (31), one lens carrier (32) and one second driving portion (33), the second driving portion (33) driving the lens carrier (32) so as to drive the lens portion (31) to move in the direction of an optical axis.

Description

Light steering component and optical system for optical image stabilization

Technical Field

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 technique

Recently, due to the development of mobile communication technology, portable terminals such as smart phones have become popular, and miniaturized and lightweight camera modules have appeared. Therefore, at least one camera module is configured on the portable terminal body. Customers' design requirements for camera modules are increasing day by day. Users not only require the camera modules configured on mobile terminals to have high capacity and high performance, but also require the development of camera modules that meet the standards of digital cameras (DSLR). The development of camera modules must meet the development trend of miniaturization and lightness while maintaining high performance and high capacity.

The periscope camera module reflects the light beam incident to the front end of the camera module by placing a reflective prism at the front end to change the direction of the light, and then reaches the photosensitive chip after passing through the lens assembly and the color filter, so that the camera module can be installed in the electronic device in a horizontal manner, thereby ensuring that the telephoto camera module can meet the long focal length shooting effect while reducing the height of the telephoto camera module. Therefore, the periscope camera module can largely meet the requirements of miniaturization and optical zoom of terminal equipment by changing the angle of the incident light, reasonably changing the longer lens structure, and reducing the height of the module.

The camera module uses a motor to realize the optical autofocus function (hereinafter referred to as the focus or zoom function, AutoFocus), zoom function and optical image stabilization function (hereinafter referred to as the anti-shake function: 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 at the rear of 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 incident through the lens system and converts it into an image signal.

The addition of focus or zoom function, zoom function and anti-shake function makes the driving structure of the camera module more complicated. In addition, the camera module needs to be equipped with a corresponding actuator, which on the one hand 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 increase in the driving structure increases the weight of the lens and other components, which requires a greater driving force to achieve, which increases the energy consumption of the module drive. In addition, the complexity of the camera module driving structure increases the difficulty of assembling the various components of the camera module and increases the process cost.

Summary of the invention

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 the system can be installed in the internal space of a predetermined shell, and meet the requirements of miniaturization while realizing image stabilization and focus or zoom.

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 through a lens assembly, thereby significantly reducing the overall power consumption of the module.

One object of the present invention is to provide a light deflection assembly and an optical system, by which optical image stabilization is achieved through the light deflection assembly, and the lens assembly only realizes the focus or zoom function but does not perform the image stabilization function. The structural components can be reduced in a single lens module, so that the height dimension of the lens assembly is smaller, thereby reducing the height of the camera module.

An 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 unit, thereby achieving low-power drive.

One object of the present invention is to provide a light redirection assembly and an optical system, wherein a first supporting mechanism, a first holding element and a first driving assembly of the light redirection assembly are at least partially arranged on the bottom surface of the base by using an integrally formed base, and a second holding element is also Being arranged near the bottom side of the base, it can be easily assembled in the case of an integrally formed base, and at the same time can effectively accommodate the drive assembly and support or retain the first and second retaining elements, thereby achieving miniaturization.

One object of the present invention is to provide a light deflection 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 be a groove shape that is compatible with the first retaining element in a cross section perpendicular to the second rotation axis.

One object of the present invention is to provide a light redirection assembly and an optical system, wherein a 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 a first groove, guiding the first supporting mechanism and other components supported by it to rotate relative to the base around the second rotation axis, thereby achieving low-power driving of a large rotation angle.

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

One object of the present invention is to provide a light deflection 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 a 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.

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 configured 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.

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

One object of the present invention is to provide a light deflection 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 decreases 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 decreases as the depth increases, so that the movement of the first supporting mechanism and the parts supported by it around the second rotation axis driven by the first holding element and the movement of the second supporting mechanism and the parts supported by it around the first rotation axis driven by the second holding element do not interfere with each other.

An object of the present invention is to provide a light redirection assembly and an optical system, wherein a first rotation axis and a second rotation axis are on the same cross section and intersect each other perpendicularly to prevent one layer of a retaining element from interfering with another layer when the retaining element rotates.

One object of the present invention is to provide a light redirection assembly and an optical system, wherein the centers of a first retaining element and a portion of a 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.

One object of the present invention is to provide a light deflection assembly and an optical system, wherein a first holding element and a 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 miniaturization and thinness of the camera module.

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

One object 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 parts 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.

One object of the present invention is to provide a light deflection assembly and an optical system. Through a single driving magnet, a first magnetic attraction component and a second magnetic attraction component are respectively arranged above and below, respectively clamping two layers of retaining elements, thereby reducing structural parts, making the structure compact and simple, and reducing the weight of the driving components of the optical image stabilization. While achieving miniaturization, sufficient driving force is provided to the reflective component to achieve image stabilization.

One object of the present invention is to provide a light redirection component and an optical system, wherein at least one of the fifth groove and the sixth groove The latter is configured to have a groove shape that matches the third holding element in a cross section perpendicular to the Z axis, thereby reducing driving resistance.

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 travel distance of the lens carrier and the lens head through the structure of a single-sided third retaining element sharing a groove-shaped groove.

One object of the present invention is to provide a light redirection assembly and an optical system, wherein the third retaining element rolls in place in the 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.

One object of the present invention is to provide a light deflection component and an optical system, in which the focus or zoom magnetic suction component is offset from the third driving magnet and the third retaining element in the YZ plane direction (horizontal direction), so as to reserve space for the movement of the third retaining element.

One object of the present invention is to provide a light redirection component and an optical system, wherein a focus or zoom magnetic attraction component indirectly generates attraction with a third driving magnet to clamp a third retaining element, and by providing an additional magnetic conductive sheet, through magnetization, it interacts with the focus or zoom magnetic attraction component located on the bottom surface of the base, thereby leaving sufficient space for the third retaining member and the sixth groove of the lens carrier and the fifth groove on the bottom surface of the base.

To achieve the above objectives, according to one aspect of the present application, a light redirection assembly for optical image stabilization is provided, 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 reflecting member and disposed on the first supporting mechanism; and

A first driving unit includes 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 around 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 around a 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 component 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.

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

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.

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

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.

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 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.

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.

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 matches 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.

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.

In some embodiments, at least one third groove is provided on the upper side of the first supporting mechanism, and at least one fourth groove is provided on the lower side of the second supporting mechanism, 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.

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

A base, the base comprising a base side wall and a base bottom surface;

The light redirection 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 deflection assembly, and comprises 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 direction.

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.

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 the opposite side of the third driving magnet.

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.

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

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.

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 attraction component causes the lens carrier and the bottom surface of the base to clamp the third retaining element.

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.

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.

In some embodiments, 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.

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.

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

A base, the base having a base bottom surface;

A reflective component, used for changing the optical path, wherein the 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 that supports the reflecting member and is disposed on the first supporting mechanism; and

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.

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.

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 component is disposed on the base bottom surface, and a portion of the second drive component is disposed on the base side wall.

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.

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.

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.

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 element, the first groove, and the second groove.

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.

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.

In some embodiments, at least one third groove is provided on the upper side of the first supporting mechanism, and at least one fourth groove is provided on the lower side of the second supporting mechanism. 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.

In some embodiments, the center of the first retaining element and the center of a portion 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 height direction.

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

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

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

FIG. 2 is a schematic diagram of a camera module according to an embodiment of the present application after removing the cover plate.

FIG. 3 is a schematic diagram of a camera module according to an embodiment of the present application that does not include a photosensitive component.

FIG. 4 is a schematic diagram of an exploded view of a camera module according to an embodiment of the present application.

Fig. 5A is a cross-sectional view of a camera module according to an embodiment of the present application taken along A-A in Fig. 3. Fig. 5B is a cross-sectional view of a camera module according to an embodiment of the present application taken along B-B in Fig. 3.

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

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

FIG. 6 is a schematic diagram of a base of a camera module according to an embodiment of the present application.

FIG. 7 is a partial schematic diagram of a light redirecting assembly and a base of a camera module according to an embodiment of the present application.

FIG8 is a schematic diagram of a partial structure of a light redirecting assembly of a camera module according to an embodiment of the present application.

FIG. 9 is a schematic diagram of the structure of a lens assembly of a camera module according to an embodiment of the present application.

FIG. 10 is a schematic diagram of a camera module base, a light redirection assembly, and a lens assembly according to an embodiment of the present application.

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 ways

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 described below or illustrated in the following figures. The present invention can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including", "comprising" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.

Furthermore, on the first aspect, in the disclosure of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship 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 operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, 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.

Fig. 1 is an overall schematic diagram of the camera module 1, Fig. 2 is a schematic diagram of the camera module 1 after removing the cover plate, Fig. 3 is a schematic diagram of the camera module 1 without the photosensitive component, Fig. 4 is a partially exploded schematic diagram of the camera module 1, Figs. 5A-5D are cross-sectional views of the camera module 1 (taken along lines A-A, B-B, C-C and D-D of Fig. 3, respectively), and Fig. 6 is a schematic diagram of the camera module base. Referring to Figs. 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 assembly 40.

The light redirection assembly 20 is arranged in front of the lens assembly 30 or on the light incident side of the lens assembly 30. The light redirection assembly 20 is used to change the route of the incident light. In some optional embodiments, a prism or a reflective mirror is used for reflection to achieve light path turning. The lens assembly 30 is arranged on the light sensing path of the photosensitive assembly 40. The propagation direction of the incident light entering the light redirection assembly 20 is changed by the light redirection assembly 20, so that the turned light passes through the optical path of the lens assembly 30. After the light passes through the optical path correction of the lens assembly 20, it is received by the photosensitive assembly 40 to form an image.

The housing 10 has a hollow cavity for accommodating the light redirection 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 redirection assembly 20 is arranged at the light incident position of the lens assembly 30. The light-sensing assembly 40 is arranged on the light-emitting 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-deflecting assembly 20, the lens assembly 30 and the light-sensing assembly 40 are arranged in sequence from one side of the housing 10 to the other side of the housing. In some optional embodiments, the housing 10 is an integrally formed structure, which includes an integrally formed base 11 extending along the length direction to provide a better installation reference for the light-deflecting assembly 20, the lens assembly 30 and the light-sensing assembly 40.

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 plate 12 is disposed at the opening 111 of the base 11, and the base side wall 112, the base bottom surface 113 of the base 11 and the cover plate 12 together constitute the internal space of the shell 10. The cover plate 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

The base 11 may be integrally formed, that is, the base bottom surface 113 is integrally formed, and the base side wall 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 in the internal space of the housing 10. In some optional embodiments, the base 11 may also be formed by connecting separate base parts that are respectively provided with one or more of the light deflection assembly 20, the lens assembly 30 and the photosensitive assembly 40.

In some optional embodiments, the base side wall 112 is provided with a first protruding wall 1121 and a second protruding wall 1122, and the first protruding wall 1121 and the second protruding wall 1122 divide the internal 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, that is, the light deflection assembly 20 is arranged on one side of the first protruding wall 1121, and the lens assembly 30 is arranged 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, that is, the lens assembly 30 is arranged on one side of the second protruding wall 1122, and the photosensitive assembly 40 is arranged 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 side wall 112.

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, and the opening 122 is arranged above the light redirection assembly 20. The incident light enters through the opening 122, is changed in light path direction by the light redirection 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 can be formed by separate components that respectively cover the light redirection assembly installation area 114, the lens assembly installation area 115, and the photosensitive assembly installation area 116.

2 , the housing 10 of the camera module 1 may further include a gasket 13 , which is an elastic component, 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 .

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.

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 a focus or zoom function, a zoom function, and an 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 the installation space reserved for the camera module is also limited.

To this end, a camera module 1 is provided, wherein different functions are realized by different functional components. The camera module 1 includes a first driving unit 24 and a second driving unit 33, wherein the first driving unit 24 is arranged on the light deflection component 20, and is used to drive the reflection The optical deflection assembly 20 realizes the optical image stabilization function, and the lens assembly 40 realizes the focus or zoom function, so as to be installed in the internal space of the predetermined housing 10, and meet the requirements of miniaturization while realizing the anti-shake and focus or zoom.

The light redirection assembly 20 changes the path of the light incident through the opening 111 through the first driving unit 24 to achieve an optical image stabilization function. When capturing an image or a moving image, the image may be blurred or the moving image may be shaken due to the user's hand shake or other shake. The relative displacement corresponding to the shake is provided to the first driving unit 24, and the first driving unit 24 drives the reflective member 23 to correct the user's hand shake or other shake.

The anti-shake function is realized by the movement of the first driving unit 24 which has a relatively low weight because it does not include a lens, etc., and therefore, power consumption can be significantly reduced. That is, in order to realize 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 movement direction of the light by the movement of the first driving unit 24 on which the reflection member 23 is provided, without moving the lens assembly 30 or the photosensitive assembly 40.

The light is received by the photosensitive component 40 through the lens assembly 30 to form an image, and the lens assembly 30 realizes the focusing function. When capturing an image, the lens assembly 30 adjusts the distance between the lens part 31 and the photosensitive component 40 by moving the second driving part 33 provided with the lens part 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 the anti-shake function and the zooming function in addition to the focusing or zooming function to meet the requirements of different shooting scenes. Referring to Figures 2 to 8, the light deflection assembly 20 according to the embodiment of the present application is explained. In the present application, the light deflection component 20 is disposed in the light deflection component installation area 114 of the base 11. The light deflection component 20 includes a first supporting mechanism 21 disposed 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.

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 allows the light to achieve a 90° 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 lens assembly. 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, and 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 through the right-angle surface 232 along the second optical path 202, passes through the lens assembly 30, and reaches the photosensitive assembly 40.

The reflective member 23 is fixedly disposed on the second supporting mechanism 22. The second supporting 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 supporting mechanism 22.

The second support mechanism 22 is movably mounted in the inner space of the housing 10. In the embodiment of the present application, the second support mechanism 22 can rotate around 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.

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.

The first support mechanism 21 is movably disposed on the base 11 and can rotate relative to the base 11 around a second rotation axis. The first driving part 24 is suitable for driving the reflective member 23 to move, that is, driving the reflective member 23 to perform optical image stabilization. The first driving part 24 includes a first driving component 241 and a second driving component 242, wherein the first driving component 241 is located between the first supporting mechanism 21 and the bottom surface 113 of the base, and the second driving component 242 is located between the second supporting mechanism 22 and the base 11, and the first driving component 241 is used to drive the reflective member 23 to move around the second rotation axis, and the second driving component 242 is used to drive the reflective member 23 to move around the first rotation axis.

Among them, the first driving component 241 includes a first driving coil 2411 and a first driving magnet 2412. In some optional embodiments, the first driving magnet 2412 is arranged on the first supporting mechanism 21, and the first driving coil 2411 is arranged on the opposite side of the first driving magnet 2412. In one embodiment of the present application, the first driving magnet 2412 is arranged on the lower side of the first supporting mechanism 21, and the lower surface of the first supporting mechanism 21 is provided with a receiving groove for accommodating the first driving magnet 2412. The first driving 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 driving coil 2411 is arranged in the first driving coil groove 1141 of the base 11, so that the first driving coil 2411 is located in the magnetic field of the first driving magnet 2412.

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

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 through the first holding element 251, and the first holding element 251 has a spherical or cylindrical structure, so that the first support mechanism 21 rotates around the second rotation axis under the action of the drive coil or other types of drive components. The second support mechanism 22 is supported on the base 11 through the first holding element 251 and the second holding element 252, and the second holding element 252 has a spherical or cylindrical structure, so that the second support mechanism 22 can rotate around the second rotation axis and the first rotation axis under the action of the drive coil or other types of drive components.

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 retaining element 252, the second supporting mechanism 22, the reflective component 23 and other components, rotate around the second rotation axis under the guidance of the first retaining element 251 and at least one second groove 211 arranged on the first supporting mechanism 21 and/or at least one first groove 1143 arranged on the base 11. In other words, the above structure drives the reflective 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 reflective component 23 and other components, rotate around the first rotation axis under the guidance of the second retaining element 252 and at least one third groove 212 arranged on the first supporting mechanism 21 and/or at least one fourth groove 222 arranged on the second supporting mechanism. In other words, the above structure drives the reflective component 23 to rotate around the first rotation axis.

It is worth mentioning that in the present patent application, the base 11 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 deflection assembly 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 supporting/retaining element to achieve miniaturization.

The first support mechanism 21 can be movably supported on the base bottom surface 113, and the first holding element 251 is arranged 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 holding element 251.

5A-5C and FIG. 6 , 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.

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.

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

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 on the base 11 or may be partially inserted into the second groove 211 of the first supporting mechanism 21. In order to realize that the first retaining member 251 is rotatable and movable around the second rotation axis and the movement in other directions is restricted, at least one of the first groove 1143 and the second groove 211 is set to a groove matching the first retaining element 251, and may be set based on the shape of the first retaining element 251. In one embodiment of the present application, as shown in FIGS. 5A to 6, the first retaining element 251 is a spherical member, the first groove 1143 is set to a hemispherical groove based on the spherical member, the second groove 211 is in a groove shape, and the first retaining element 251 can roll and move in the hemispherical first groove 1143.

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, and 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, and the line connecting the sphere centers of the retaining elements 251a and 251b constitutes the second rotation axis. The first retaining element 251 rolls in situ around the second rotation axis in 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.

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, thereby improving driving efficiency.

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

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

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 symmetrically arranged, and the second retaining element 252c is arranged 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 it perform a 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 it 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 arranged between the third groove 212a and the fourth groove 222a, the second retaining element 252b is arranged between the third groove 212b and the fourth groove 222b, and the second retaining element 252c is arranged 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).

In one embodiment of the present application, part of the fourth groove 222 of the second supporting mechanism 22 is a trapezoidal groove and part is a planar groove, so as to realize the rotational movement of the second supporting mechanism 22 and other components around the first rotation axis. Among them, the fourth grooves 222a and 222b are trapezoidal grooves, and the fourth groove 222c is a planar groove. The fourth grooves 222a, 222b and 222c are arranged based on the first rotation axis, so that the second holding element 252 drives the second supporting mechanism 22 and other components to rotate around the first rotation axis.

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 supporting mechanism 21 and the fourth groove 222 of the second supporting mechanism 22. In order to realize that the second retaining member 252 drives the second supporting mechanism 22 to rotate and move around the first rotation axis, and the movement in other directions is restricted, at least one of the third groove 212 and the fourth groove 222 is set to a groove matching the second retaining element 252, and can be set based on the shape of the second retaining element 252. In one embodiment, as shown in Figures 5A to 6, the second retaining element 252 is a spherical member, the third groove 212 is set to a hemispherical groove based on the spherical member, part of the fourth groove 222 is a trapezoidal groove, part is a plane groove, and part of the second retaining element 252 can roll and move in the hemispherical third groove 212.

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.

In some optional embodiments, in order to ensure that the first holding element 251 drives the first supporting mechanism 21 and the parts supported by it to move around the second rotation axis and the second holding element 252 drives the second supporting mechanism 22 and the parts supported by it to move around the first rotation axis without interfering with each other, that is, when the second supporting mechanism 22 is driven by the second holding element 252 to rotate around the first rotation axis, the second supporting mechanism 22 is inserted into the The first holding element 251 in 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 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, wherein the cross section of the groove may be a "V" shape, a "U" shape, a circular shape or a polygonal shape to limit the movement of the first holding element 251 around the first rotation axis. Similarly, when the first support mechanism 21 is driven by the first holding element 251 to rotate around the second rotation axis, the second holding element 252 inserted into the third groove 212 and the fourth groove 222 does not move, and at least one of the third groove 212 and the fourth groove 222 opposite to each other has a width along the cross section parallel to the XY plane that becomes smaller as the depth increases to limit the movement of the second holding element 251 around the second rotation axis, which may 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 among 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 the grooves, 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.

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

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 lightweight of the camera module.

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 reflecting member 23, etc., rotate around the second rotation axis under the guidance of the second groove 211 of the first supporting mechanism 21 by the first retaining element 251 and the first groove 1143 on the bottom surface 113 of the base, and the second supporting mechanism 22 and the components supported by it, including but not limited to the reflecting 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 situ 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.

When the first driving coil 2411 is energized, the first supporting mechanism 21 on which the first driving magnet 2412 is mounted rotates around the second rotation axis through the electromagnetic force between the first driving coil 2411 and the first driving magnet 2412, thereby driving other components supported by the first supporting mechanism 21, including but not limited to the second supporting mechanism 22 and the reflective component 23 located on the second supporting mechanism 22, to rotate around the second rotation axis. When the second driving coil 2421 is energized, the second supporting mechanism 22 on which the second driving magnet 2422 is mounted rotates around the first rotation axis through the electromagnetic force between the second driving coil 2421 and the second driving magnet 2422, thereby driving the reflective component 23 and other components supported by the second supporting mechanism 22 to rotate around the first rotation axis.

The light deflection component 20 also includes a magnetic attraction component 26. The magnetic attraction component 26 includes at least one first magnetic attraction component 261 and at least one second magnetic attraction component 262. The first magnetic attraction component 261 and the second magnetic attraction component 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 component 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, and the first driving coil 2411 is arranged between the first magnetic attraction component 261 and the first driving magnet 2412. The second magnetic attraction component 262 The lower side surface disposed on the second supporting mechanism 22 is disposed opposite to the first driving magnet 2412. In some optional embodiments, the lower side surface of the second supporting mechanism 22 is provided with a placement groove, and the second magnetic attraction member 261 is disposed in the placement groove or the second magnetic attraction member 261 is integrally formed at the lower end of the second supporting mechanism 22.

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 attraction component 261 and the second magnetic attraction component 262 and the first driving magnet 212. On the other hand, the attraction between the first magnetic attraction component 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 attraction component 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.

Through a single driving magnet, a first magnetic attraction member 261 and a second magnetic attraction member 262 are respectively arranged on the upper and lower parts to clamp two layers of holding elements. On the one hand, the structural parts are 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 anti-shake. On the other hand, the two layers of holding 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 component 20 also includes at least one sensing component 27, through which the positions of the first supporting mechanism 21 and the second supporting mechanism 222 are detected to provide feedback to achieve closed-loop control. The sensing component 27 includes a Y-axis sensing component 271 and an X-axis sensing component 272, which are respectively arranged on the inner side or outer side of the second driving coil 2421 and the first driving coil 2411.

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

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. Among them, the second driving unit 33 is used to drive the lens carrier 32 and the lens head 31 to realize the focus or zoom function or zoom function. The lens assembly 30 does not include a driving assembly for anti-shake, so it has a relatively low weight, and the second driving unit 33 provides sufficient driving force to the lens head 31, so as to realize low-power driving.

The lens head 31 includes a lens barrel 311 and a lens group 312 installed in the lens barrel 311. The lens group 311 is stacked along the Z-axis direction to form an optical system with the reflective component 23 of the light redirection assembly 20. The lens head 31 includes a light-entering side and a light-exiting side opposite to the light-entering side, wherein the light-entering side corresponds to the light redirection 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 head 31, and the light-exiting side is the image side of the lens head 31. In some optional embodiments, in order to reduce the overall height of the camera module and the weight of the lens head, a D-cut lens head 31 is used, that is, the radial dimension in the X-axis direction is smaller than the radial dimension in the Y-axis direction.

The lens carrier 32 is movably mounted in the inner space of the housing 10 and can move along the Z axis to support part or the whole of the lens head 31. The lens carrier 32 includes a mounting cavity 321. The mounting cavity 321 is a U-shaped structure, i.e., has a top opening, and is suitable for mounting the lens head 31 into the mounting cavity 321 from the top of the lens carrier 32.

The second driving 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 realizing the focus or zoom function. The second driving unit 33 includes a third driving component 331, including at least one third driving coil 3311 and at least one third driving magnet 3312. In some optional embodiments, the third driving magnet 3312 is arranged on both sides of the lens carrier 32, and the third driving coil 3311 is arranged on the opposite side of the third driving 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 side wall 112 of the base. The third driving coil groove 1151 is provided on the side wall 112 of the base corresponding to the lens assembly installation area, and the third driving coil 3311 is provided in the third driving coil groove 1151 of the base 11, so that the third driving coil 3311 is located in the magnetic field of the third driving magnet 3312.

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 part 31 to move along the optical axis direction to achieve focusing.

The lens assembly 30 further includes a lens holding assembly 34, which includes at least one third holding element 341. The lens carrier 32 is movably supported on the base 11 by the third holding element 341, so that the lens carrier 32 moves along the optical axis direction (Z axis) to achieve focusing. The third holding element 341 is disposed between the lens carrier 32 and the bottom surface 113 of the base. The lens carrier 32 and other components supported by it, including but not limited to the lens portion 31, move along the optical axis direction (Z axis) under the guidance of the third holding element 341 and at least one fifth groove 1152 disposed on the base 11 and/or at least one sixth groove 322 of the lens carrier 32. In addition, the third holding element 341 can also be used to maintain the distance between the lens carrier 32 and the base 11.

5D , the lens carrier 32 can be movably supported on the base bottom surface 113, and the third retaining element 341 is 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 lower side of the lens carrier 32, and the fifth groove 1152 and the sixth groove 322 are opposite to each other to fix the third retaining element 341.

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.

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, 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, and the third retaining elements 341b and 341d are symmetrical along the Y axis. The fifth groove 1152 of the base 11 includes fifth grooves 1152a, 1132b, 1132c, and 1132d, which correspond to the positions of the third retaining member 341 one by one, and the sixth groove 322 of the lens carrier 321 includes sixth grooves 322a, 321b, 321c, and 321d, which correspond to the positions of the third retaining member 341. The fifth groove 1152 and the sixth groove 322 fix the third retaining member 341 relative to each other.

The third retaining member 341 may be partially inserted into the fifth groove 1152 provided on the base 11 or may 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 element 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 adapted to the third retaining element 341 in a cross section perpendicular to the Z axis. Fifth groove 1152

In some embodiments of the present application, in order to achieve stable support, at least one of the fifth groove 1152 and the sixth groove 322 can be set as a groove matching the third holding element 341, and can be set based on the shape of the third holding element 341. The third holding element 341 can be a spherical member, the fifth groove 1152 is set as a hemispherical groove based on the third holding element 341, the sixth groove 322 is a groove shape extending along the Z-axis direction, and the third holding element 341 can roll and move in the hemispherical fifth groove 1152. In some optional embodiments, the sixth grooves 322a, 321b, 321c, and 321d may be independent groove-shaped grooves, or the sixth grooves 322a and 321b may be connected, and the sixth grooves 322c and 321d may be connected, forming long strip-shaped grooves extending along the Z-axis direction and arranged on both sides of the lower side of the lens carrier 32, that is, the third holding elements 341a and 341b share a groove-shaped groove, and the third holding elements 341c and 341d share a groove-shaped groove. The structure of the lens carrier 32 is simplified by the structure of the third holding element on one side sharing the groove-shaped groove. The weight of the lens carrier 32 is reduced, the power consumption is reduced, and at the same time, the focusing travel distance of the lens carrier 32 and the lens part 31 is increased.

In one embodiment of the present application, the third holding element 341 is a spherical component, the base 11 uses a hemispherical groove matching the third holding element 341 to fix the lower half of the third holding element 341, and the lens carrier 32 uses a groove-shaped groove to fix the upper half of the third holding 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 direction (Z axis) under the driving action of the third driving component 331. Among them, the third holding element 341 rolls in place in the hemispherical fifth groove 1152, with high precision and stable motion mechanism, and has little effect on the title of the lens carrier 32 during the movement along the optical axis, so that the imaging is 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 focusing or zooming magnetic suction assembly 36. The magnetic conductive sheet 35 is arranged in the lens carrier 32, and the focus or zoom magnetic attraction component 36 is arranged on the bottom surface 113 of the base corresponding to the lens assembly installation area 115. The magnetic conductive sheet 35 and the focus or zoom magnetic attraction component 36 generate a force of mutual attraction. The attraction between the magnetic conductive sheet 35 and the focus or zoom magnetic attraction component 36 causes the lens carrier 32 and the bottom surface 113 of the base to clamp the third holding element 341, so that the third holding element 341 is tightly held between the lens carrier 32 and the bottom surface 113 of the base. The lens carrier 32 is pressed toward the bottom surface 113 of the base, so that the third holding element 341 maintains a contact state with the lens carrier 32 and the bottom surface 113 of the base. In the YZ plane direction (horizontal direction), the focus or zoom magnetic attraction component 36 is staggered with the third driving magnet 3312 and the third holding element 341.

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, and the two side walls 352 and 353 are respectively arranged on both sides of the main body 351, and can be formed by an integrally molded metal material. The first side wall 352 and the second side wall 353 are arranged on the side of the third driving magnet 3312 mounted on the lens carrier 32 that faces away from the third driving coil 3311, and are magnetized by the magnetic field of the third driving magnet 3312, and the main body 351 of the magnetic conductive sheet 35 is arranged opposite to the focus or zoom magnetic component 36 arranged on the bottom surface 113 of the base, thereby forming a mutually attractive force to tightly clamp the third holding element 341. Among them, the magnetic conductive sheet 35 can be integrally molded in the lens carrier 32.

It is worth mentioning that in the present application, the focus or zoom magnetic suction 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 suction component 36 located on the bottom surface 113 of the base, so as to make enough space for 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, instead of the original focus or zoom magnetic suction component 36 directly provided 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 suction component 36. In addition, the clamping force of the original focus or zoom magnetic suction 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 suction component 36 can be close enough to provide sufficient clamping force for clamping the third holding element 341.

The camera module 1 further includes a main circuit board 50, the first driving unit 24 includes the first driving coil 2411 and the second driving coil 2421 for driving the reflective member 23, and the second driving unit 33 includes the third driving coil 3311 for driving the lens unit 31. The first driving coil 2411, the second driving coil 2421 and the third driving coil 3311 are arranged on the main circuit board 50, and the first driving coil slot 1141, the second driving coil slot 1142 and the third driving coil slot 1151 are arranged on the base 11, so that when the main circuit board 50 is installed on the base 11, each coil is exposed to the internal space of the base 11.

FIG11 shows a schematic diagram of a 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 bottom 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 bottom 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 part of the bottom substrate 51, the first side substrate 52, and the second side substrate 53, so as to achieve circuit signal connectivity.

In some optional embodiments, the first driving coil 2411 and the Y-axis sensing element 272 for driving the first driving part 24 of the light redirection assembly 20 are arranged on the inner surface of the bottom substrate 51. The second driving coil 2421 and the X-axis sensing element 271 for driving the first driving part 24 of the light redirection assembly 20 are arranged 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 part 33 of the lens assembly 30 is arranged on the inner surfaces of the first side substrate 52 and the second side substrate 53.

The main circuit board 50 is arranged on the outside of the base 11, and can be integrally connected or installed with the circuit boards of various driving coils separately.

1 and 2, the photosensitive component 40 is disposed in the internal space of the housing 10, and is disposed in the photosensitive component installation 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 on the light sensing path of the photosensitive component 40, so that the light of the photosensitive component 40 entering from the lens assembly 30 is filtered after passing through the filter element 43, and reaches the photosensitive element 42 to receive and form an image. The filter element 43 can be disposed on the housing 10, and can also be disposed on the photosensitive element 42.

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. The periscope camera module is installed in the electronic device without increasing the thickness of the electronic device, thereby realizing the lightweight and miniaturization of the electronic device terminal.

It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

A light deflection assembly for optical image stabilization comprises: a base having a base bottom surface,

A first supporting mechanism is supported on the bottom surface of the base;

a second supporting mechanism supporting a reflecting member and disposed on the first supporting mechanism; and

A first driving unit includes 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 around 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 around a 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 component 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.
The light redirection assembly according to claim 1, wherein the first driving assembly includes at least one first driving coil, and the first driving coil is arranged between the first driving magnetic attraction component and the first driving magnet, opposite to the first driving magnet, to drive the first supporting mechanism and the parts supported by it to rotate around the second rotation axis.
The light redirection assembly according to claim 2, wherein the second magnetic attraction member is arranged on the lower side of the second supporting mechanism, opposite to the first driving magnet.
The light redirection 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, and drive the parts supported by the second supporting mechanism to rotate around the first rotation axis.
According to the light redirection assembly according to claim 4, it also includes an anti-shake holding assembly, 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.
According to the light redirection assembly according to claim 5, 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.
The light redirection 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, 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.
The light redirection 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 surface of the first supporting mechanism, and at least one of the first groove and the second groove is configured to have a groove shape that matches 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.
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.
The light redirection 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.
An optical system, comprising:

A base, the base comprising a base side wall and a base bottom surface;

The light redirection 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 output side of the light redirection assembly, and includes at least one lens head, a lens carrier and a second The lens portion is arranged on the lens carrier, and the second driving portion drives the lens carrier to drive the lens portion to move along the optical axis direction.

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.
The optical system according to claim 11, wherein the second driving unit further comprises at least one third driving coil, the third driving magnet is arranged on both sides of the lens carrier, and the third driving coil is arranged on the opposite side of the third driving magnet.
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 all of the lens head.
The optical system of claim 13, wherein the third retaining element is disposed between the lens carrier and the base bottom surface.
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.
According to the optical system of claim 15, wherein the magnetic conductive sheet is located in the magnetic field of the third driving magnet, is magnetized by the magnetic field, and the attraction between the magnetic attraction component and the lens carrier and the bottom surface of the base clamps the third retaining element.
According to the optical system of claim 16, the magnetic conductive sheet includes a main body, a first side wall and a second side wall, and 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.
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, and the magnetic conductive sheet is magnetized by the magnetic field of the third driving magnet.
According to the optical system of 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.
The optical system according to claim 10, wherein, in the horizontal direction, the magnetic attraction component is offset from the third driving magnet and is offset from the third retaining element.
A light steering assembly for optical image stabilization, comprising:

A base, the base having a base bottom surface;

A reflective component, used for changing the optical path, wherein the 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 that supports the reflecting member and is disposed on the first supporting mechanism; and

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.

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.
According to the light redirection assembly according to claim 21, the base extends upward from the bottom surface of the base to form a base side wall, a portion of the first drive assembly is arranged on the bottom surface of the base, and a portion of the second drive assembly is arranged on the side wall of the base.
The light redirection assembly according to claim 22, further comprising an anti-shake holding assembly, wherein the anti-shake holding assembly The assembly 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.
The light redirection assembly according to 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.
According to the light redirection assembly according to claim 24, at least one first groove is arranged on the bottom surface of the base, and at least one second groove is arranged on the lower side surface 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 member relative to each other.
According to the light redirection assembly according to claim 25, 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 element, the first groove and the second groove.
According to the light redirection assembly according to claim 26, 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.
The light redirecting assembly according to 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.
According to the light redirection assembly according to claim 28, 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, 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.
According to the light redirection assembly according to claim 29, the center of the first retaining element and the center of a portion 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.