Support assembly and camera module
By adopting a bracket assembly design in the camera module, and utilizing the cooperation of guide grooves and support components, the accuracy and stability issues of the suspension wire moving the bracket in the camera module are solved, simplifying the assembly process and improving the image stabilization effect and operating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KUNSHAN Q TECH CO LTD
- Filing Date
- 2026-01-16
- Publication Date
- 2026-05-05
AI Technical Summary
When suspension wires are used in camera modules for image stabilization compensation of moving supports, the moving accuracy and stability decrease with increasing load, and the installation and operation are difficult and inefficient.
The design adopts a bracket assembly including a first bracket, a second bracket, and a third bracket. Support members are set on both sides of the third bracket and embedded in the guide groove to ensure stable movement between the brackets. The assembly operation is simplified through the cooperation of spherical contact and guide groove.
It improves the accuracy and stability of image stabilization movement, reduces assembly difficulty and operational complexity, expands the applicability of the bracket assembly, and can support lenses and image sensor chips with greater weight.
Smart Images
Figure CN121985222A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of camera module technology, and particularly relates to a bracket assembly and a camera module. Background Technology
[0002] In the camera module, focusing and imaging are achieved through the cooperation of the lens and the image sensor chip. To cope with shooting shake, a movable support is configured in the camera module to carry the moving lens and / or image sensor chip relative to the base support, thereby achieving image stabilization compensation. The movable support is movably connected to the base support via a suspension wire to maintain the stability of the movable support's movement.
[0003] However, the stability and accuracy of the suspension wire movement are related to the load on the moving support. The accuracy and stability of the moving support movement decrease as the load increases, which to some extent degrades the image stabilization effect and shooting quality. On the other hand, the surrounding installation space of the suspension wire is small, and the installation operation requires a high degree of coordination with the surrounding structure, making the operation difficult and inefficient. Summary of the Invention
[0004] This application provides a bracket assembly and a camera module, aiming to at least partially solve the technical problems of unsatisfactory image stabilization accuracy and stability based on suspension wires, as well as the high difficulty and low efficiency of assembly operations in camera modules. Therefore, According to one aspect of this application, a support assembly is provided, comprising: The first bracket has a first guide groove; The second bracket is disposed opposite to the first bracket, and the second bracket is provided with a second guide groove; The third bracket is disposed between the first bracket and the second bracket, and a first support member and a second support member are respectively disposed on both sides of the third bracket. The first support member abuts against the first guide groove, and the second support member abuts against the second guide groove.
[0005] In some embodiments, the first support member and / or the second support member are made of polyoxymethylene material.
[0006] In some embodiments, the first support member and / or the second support member are integrally formed on the second bracket.
[0007] In some embodiments, the first support member is slidably engaged with the first guide groove, and the side surface of the first support member that contacts the first guide groove is spherical. And / or, the second support member slides in conjunction with the second guide groove, and the side surface of the second support member that contacts the second guide groove is spherical.
[0008] Another aspect of this application embodiment also provides a camera module, including: an image sensing chip, a driving mechanism, a lens, and the aforementioned bracket assembly; The image sensor chip or the lens is mounted on the second bracket, with the lens positioned on one side of the image sensor. The driving mechanism is connected to the first bracket and the second bracket to drive the head sensor to move relative to the lens.
[0009] In some embodiments, the third support includes: a first arm and a second arm; The second arm is connected to the first arm to form an L-shaped component. The first support member is disposed on the side of the first arm and the second arm near the first bracket, and the second support member is disposed on the side of the first arm and the second arm near the second bracket.
[0010] In some embodiments, the first bracket is provided with a first limiting groove, and the second bracket is provided with a second limiting groove. The first limiting groove and the second limiting groove are arranged opposite to each other, and a ball bearing is rolled in the first limiting groove and the second limiting groove. The ball bearing is arranged to give way to the first support arm and the second support arm.
[0011] In some embodiments, the support assembly further includes a fourth support, wherein the first support is movably disposed within the fourth support along the optical axis of the lens to move the lens to achieve focusing; The first bracket and the second bracket are spaced apart along the optical axis of the lens, and the relative movement direction of the second bracket and the first bracket is configured to be orthogonal to the optical axis.
[0012] Another aspect of this application embodiment also provides a camera module, including: a lens, a driving mechanism, an image sensing chip, a first prism, and the aforementioned bracket assembly; The lens or the image sensor chip is mounted on the second bracket, the lens and the image sensor are located on the same side of the first prism, and the driving mechanism is connected to the first bracket and the second bracket.
[0013] Another aspect of this application embodiment also provides a camera module, including: a lens, a driving mechanism, an image sensing chip, a second prism, and the aforementioned bracket assembly; The lens or the image sensor chip is mounted on the second bracket, the lens is located on one side of the second prism, the image sensor is located on the other side of the second prism, and the drive mechanism is connected to the first bracket and the second bracket.
[0014] The embodiments of this application have at least the following beneficial effects: The bracket assembly and camera module provided in this application include a first bracket, a third bracket, and a second bracket stacked sequentially. The third bracket has a first support member and a second support member on both sides. The first and second brackets have a first guide groove and a second guide groove, respectively. The first and second support members are movably embedded in the first and second guide grooves, respectively, allowing the first and second brackets to move stably relative to each other while maintaining a stable distance. This ensures the accuracy and stability of image stabilization movement when the bracket assembly is fitted with a lens or image sensor chip. Furthermore, compared to the assembly method of suspending two relatively moving components via a wire, embedding the third bracket between the first and second brackets simplifies the assembly operation of the bracket assembly, reduces the requirements for the surrounding structure during assembly, significantly reduces assembly difficulty, and improves assembly efficiency. It is worth noting that compared to a wire suspension, the third bracket has better structural stability, which helps maintain image stabilization movement accuracy and can support heavier lenses and image sensor chips, thus broadening its applicability. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 An exploded view of the structure of the first type of support assembly in an embodiment of this application is shown; Figure 2 It shows Figure 1 A schematic diagram of the assembly status of the bracket components; Figure 3 It shows Figure 2 A cross-sectional view of the support assembly in the middle; Figure 4 It shows Figure 1 A schematic diagram of the structure of the first support in the middle support assembly; Figure 5 It shows Figure 1 A schematic diagram of the structure of the second support in the middle support assembly; Figure 6 It shows Figure 1 A schematic diagram of the structure of the third support in the middle support assembly; Figure 7 It shows Figure 1A schematic diagram showing the assembly state of the bracket assembly and the first drive mechanism. Figure 8 It shows Figure 1 A schematic diagram of the assembly state of the third bracket and the first drive mechanism in the middle bracket assembly; Figure 9 It shows Figure 1 A schematic diagram of the assembly of the second bracket, the first coil, and the image sensor chip in the middle bracket assembly; Figure 10 It shows Figure 1 A schematic diagram showing the assembly status of the support frame assembly and the image sensor chip; Figure 11 An exploded view of the structure of the second type of support assembly in an embodiment of this application is shown; Figure 12 It shows Figure 11 A schematic diagram of the assembly status of the bracket components; Figure 13 It shows Figure 12 A schematic diagram of the internal assembly state of the bracket assembly in the diagram; Figure 14 It shows Figure 13 A schematic diagram showing the assembly state of the middle support assembly with the second and third drive mechanisms; Figure 15 It shows Figure 11 A schematic diagram of the structure of the first support in the middle support assembly; Figure 16 It shows Figure 11 A schematic diagram of the structure of the third support in the middle support assembly; Figure 17 It shows Figure 16 A schematic diagram of the main structure of the third support in the diagram; Figure 18 It shows Figure 11 A schematic diagram of the structure of the second support in the middle support assembly; Figure 19 It shows Figure 11 Another structural diagram of the second support in the middle support assembly; Figure 20 It shows Figure 11 A schematic diagram showing the interaction between the first support and the second and third coils in the middle support assembly; Figure 21 It shows Figure 11 A schematic diagram showing the engagement state of the first and second supports with the second and third magnets in the middle support assembly; Figure 22 It shows Figure 11 A schematic diagram of the structure of the fourth support in the middle support assembly; Figure 23It shows Figure 11 A cross-sectional view of the support assembly in the middle; Figure 24 A schematic diagram of the camera module in an embodiment of this application is shown; Figure 25 It shows Figure 24 A cross-sectional view of the camera module in the middle; Figure 26 A schematic diagram of another camera module in an embodiment of this application is shown; Figure 27 A schematic diagram of another camera module in an embodiment of this application is shown.
[0017] Figure label: 1-Support assembly, 11-First support, 111-First guide groove, 112-First sliding contact, 112a-Third limiting groove, 113-Third guide groove, 114-First limiting groove, 115-First magnet groove, 12-Second support, 121-Second guide groove, 122-Second sliding contact, 122a-Fourth limiting groove, 123-Second limiting groove, 124-Second magnet groove, 13-Third support, 131-First support member, 131a-First spherical surface, 132-Second support member, 132a-Second spherical surface, 133-First support arm, 134-Second support arm, 135-Fixing hole, 14-Fourth support, 141-Fourth guide groove, 15-First ball assembly, 16-Second ball assembly, 161-Ball row, 17-Top cover, 18-Covering member, 19-Outer shell; 2-Lens, 21-First lens assembly, 22-Second lens assembly; 3-Image sensor chip; 4-First drive mechanism, 41-First magnet, 42-First coil, 43-First flexible printed circuit board; 5-Second drive mechanism, 51-Second magnet, 52-Second coil, 53-Second flexible printed circuit board; 6-Third drive mechanism, 61-Third magnet, 62-Third coil; 7-prism, 71-first prism, 72-second prism, 73-third prism. Detailed Implementation
[0018] This application is described below with reference to the accompanying drawings and specific embodiments: Some camera modules are equipped with image stabilization mechanisms to move the lens and / or image sensor chip, achieving optical image stabilization. Typically, a moving bracket is included in the camera module, and the bracket is suspended from the module's base support by a wire, serving as a carrier for the lens or image sensor chip. However, the internal space of the module is limited, the installation of the wire is difficult, and the wire's support strength is insufficient. As the weight of the lens and image sensor chip increases, the image stabilization movement deviation also increases, resulting in unsatisfactory image stabilization accuracy and stability.
[0019] Therefore, this application provides a bracket assembly and a camera module, which aim to improve the movement accuracy and stability of the image stabilization mechanism to a certain extent, reduce the assembly difficulty of the image stabilization mechanism, and improve assembly efficiency.
[0020] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 11 , Figure 15 , Figure 16 , Figure 18 , Figure 19 , Figure 20 , Figure 21 as well as Figure 23 In some embodiments, the bracket assembly 1 is configured as a moving carrier for the lens or image sensor chip in the camera module, used to stably move the lens or image sensor chip within the camera module to achieve optical image stabilization.
[0021] The support assembly 1 may include a first support 11, a second support 12, and a third support 13, and the third support 13 is movably clamped between the first support 11 and the second support 12, so that the first support 11 and the second support 12 can move stably relative to each other through the third support 13 and maintain a stable support spacing.
[0022] The first bracket 11 and the second bracket 12 are configured as two relatively movable main bodies. One of them is configured as a moving carrier for the lens 2 or the image sensor chip 3, and the other serves as a static bracket within the camera module, thereby enabling image stabilization of the moving lens 2 or the image sensor chip 3. Typically, in order to achieve precise image stabilization movement, the relative movement direction and stroke of the first bracket 11 and the second bracket 12 are strictly controlled, ensuring stable relative movement in at least two different directions.
[0023] The third bracket 13 is configured as a support frame and is slidably clamped between the first bracket 11 and the second bracket 12 to maintain the stability of the relative movement trajectory during the relative movement of the first bracket 11 and the second bracket 12.
[0024] To this end, the third support 13 is provided with a first support member 131 and a second support member 132. Correspondingly, the first support 11 has a first guide groove 111, and the second support 12 has a second guide groove 121. The first support member 131 is movably disposed within the first guide groove 111, and the second support member 132 is movably disposed within the second guide groove 121, thereby maintaining the stability of the movement range of the third support 13. The sliding engagement between the first support member 131 and the first guide groove 111 can strictly control the relative movement accuracy between the first support 11 and the second support 12.
[0025] It is worth noting that in the assembly method of connecting the suspension wires between the first bracket 11 and the second bracket 12, suspension wires need to be connected to the first bracket 11 and the second bracket 12 respectively, which requires a large assembly gap, making the assembly operation inconvenient. Moreover, during operation, it is easily affected by external vibration interference, causing the first bracket 11 and the second bracket 12 to swing relative to each other, affecting the image stabilization accuracy. In this embodiment, the first bracket 11 and the second bracket 12 are respectively slidably clamped with the third bracket 13 so that the first bracket 11 and the second bracket 12 can move relatively stably. At the same time, the third bracket 13 maintains a stable sliding contact with the first bracket 11 and the second bracket 12 on both sides, which can limit the first bracket 11 and the second bracket 12 from getting closer to each other. Therefore, when the bracket assembly 1 is used in the image stabilization mechanism, the movement posture and accuracy of the lens 2 or the image sensor chip 3 can be kept stable. Furthermore, the assembly of the third bracket 13 only requires the engagement of the first support member 131 with the first guide groove 111 and the engagement of the second support member 132 with the second guide groove 121, which is simple and efficient to operate and has a lower risk of interference with the surrounding structure.
[0026] On the other hand, the flexible suspension wire has limited load-bearing capacity, while the third bracket 13 has stable and reliable rigid support capacity. When the third bracket 13 is clamped between the first bracket 11 and the second bracket 12, it can support a lens 2 or image sensor chip 3 with greater weight. In other words, based on the rigid support performance of the third bracket 13, the bracket assembly 1 has better load-bearing capacity and load-bearing stability, which helps to obtain better image stabilization accuracy and operation reliability, thereby obtaining a wider range of applications.
[0027] The embodiments of this application have at least the following beneficial effects: The bracket assembly 1 provided in this application embodiment includes a first bracket 11, a third bracket 13, and a second bracket 12 stacked sequentially. The third bracket 13 has a first support member 131 and a second support member 132 on both sides. The first bracket 11 and the second bracket 12 are respectively provided with a first guide groove 111 and a second guide groove 121. The first support member 131 and the second support member 132 are respectively movably embedded in the first guide groove 111 and the second guide groove 121, so that the first bracket 11 and the second bracket 12 can move stably relative to each other and maintain a stable distance. This ensures the accuracy and stability of the image stabilization movement when the lens 2 or the image sensor chip 3 is mounted on the bracket assembly 1. On the other hand, compared to the assembly method of suspending two relatively movable main bodies by a suspension wire, the installation of the first bracket 11 and the second bracket 12 can be completed by sliding the third bracket 13 between the first bracket 11 and the second bracket 12. This simplifies the assembly operation of the bracket assembly 1 to a certain extent, reduces the requirements for the fit of the surrounding structure during the assembly process, greatly reduces the assembly difficulty, and improves the assembly efficiency. It is worth noting that, compared to the suspension wire, the third bracket 13 has better structural stability and higher support strength, which helps to maintain the accuracy of image stabilization movement, and can support lenses and image sensor chips with greater weight, thus having a wider range of applications. See Figure 4 , Figure 5 , Figure 6 , Figure 15 , Figure 16 , Figure 18 and Figure 19 In some embodiments, in order to improve the balance of force, the first guide groove 111 can be configured as multiple and distributed approximately evenly on the first bracket 11; correspondingly, the first support member 131 can also be configured as multiple and disposed in the multiple first guide grooves 111.
[0028] Similarly, the second guide groove 121 can also be provided in multiple ways, and distributed approximately evenly on the second bracket 12; correspondingly, the second support member 132 can also be provided in multiple ways, and correspondingly disposed in the multiple second guide grooves 121.
[0029] In some embodiments, to maintain the accuracy of anti-shake movement, the random swing amplitude during the relative movement of the third support 13 and the first support 11 should be strictly controlled. For this purpose, the first support member 131 can be slidably abutted against the first guide groove 111. That is, a portion of the surface of the first support member 131 slides against the bottom and sidewall of the first guide groove 111, thereby limiting the swing amplitude of the first support member 131 through the constraint of the bottom and sidewall of the first guide groove 111.
[0030] Similarly, the second support member 132 can be slidably abutted against the second guide groove 121. That is, a portion of the surface of the second support member 132 slidably abuts against the bottom and sidewall of the second guide groove 121, thereby constraining the swing amplitude of the second support member 132 by the bottom and sidewall of the second guide groove 121.
[0031] In some embodiments, considering that the first support member 131 slides relative to the first guide groove 111, the first support member 131 may be made of a self-lubricating material to reduce sliding friction to a certain extent, which helps to improve the movement efficiency of the anti-shake operation.
[0032] Meanwhile, considering that the first support member 131 needs to support the third bracket 13 and the first bracket 11, the first support member 131 should also have a certain structural strength to maintain a stable shape and support capacity.
[0033] Therefore, the first support member 131 can be made of polyoxymethylene (POM) material, thus balancing structural strength and self-lubricating properties. Of course, the first support frame 131 can also be made of other materials with self-lubricating properties and a certain structural strength; no specific restrictions are imposed here.
[0034] Similarly, the second support member 132 can also be made of materials such as polyoxymethylene, which have self-lubricating properties and structural strength.
[0035] In some embodiments, to simplify assembly, the first support member 131 and / or the second support member 132 may be integrally formed on the third bracket 13, thereby reducing the assembly difficulty of the third bracket 13 to a certain extent.
[0036] See Figure 6 , Figure 16 and Figure 17 In some embodiments, the first support member 131 and / or the second support member 132 may be independent components and can be adapted to be installed on the third bracket 13, thereby reducing the processing difficulty of the third bracket 13 to a certain extent.
[0037] Generally, a fixing hole 135 can be made on the third bracket 13, and a part of the main body of the first support member 131 or a part of the main body of the second support member 132 is embedded in the fixing hole 135, thereby realizing the installation and fixing of the first support member 131.
[0038] In some embodiments, the first support member 131 and the second support member 132 protrude from both sides of the third bracket 13. Furthermore, in the orthogonal direction of the stacking directions of the first bracket 11 and the second bracket 12, the first support member 131 and the second support member 132 can be aligned such that they are approximately coaxial, thereby reducing the risk of localized deformation of the third bracket 13.
[0039] Of course, in the orthogonal direction of the stacking direction of the first bracket 11 and the second bracket 12, the first support member 131 and the second support member 132 can also be staggered to facilitate the independent installation of the first support member 131 and the second support member 132.
[0040] In some embodiments, in order to further reduce sliding friction, the surface of the first support member 131 that contacts the first guide groove 111 can be configured as a spherical surface; that is, the first support member 131 is provided with a first spherical surface 131a, and the first spherical surface 131a slides against the first guide groove 111, thereby reducing the sliding contact surface of the first support member 131 to a certain extent, thereby reducing friction and improving movement efficiency.
[0041] Similarly, the surface of the second support member 132 that contacts the second guide groove 121 is spherical; that is, the second support member 132 is provided with a second spherical part 132a, and the second spherical part 132a slides against the second guide groove 121, which reduces the sliding contact surface of the second support member 132 to a certain extent, thereby reducing friction and improving movement efficiency.
[0042] It is worth noting that the distances from each point on the spherical surface of the first spherical part 131a and the second spherical part 132a to the center of the sphere are equal. Therefore, when the first support member 131 and the second support member 132 undergo a slight angular deflection, the overall support height of the first support member 131 and the second support member 132 remains basically unchanged, thereby maintaining the distance between the first bracket 11 and the second bracket 12, which helps to maintain the accuracy of the anti-shake movement.
[0043] See Figure 4 , Figure 5 , Figure 15 and Figure 19In some embodiments, the first guide groove 111 is a V-shaped groove, that is, its two side walls are inclined relative to the groove depth direction, so that the first spherical part 131a has two inclined support parts, which respectively slide against the two inclined side walls, which can distribute the force to a certain extent, reduce friction loss, and extend service life.
[0044] Similarly, the groove shape of the second guide groove 121 can also be a V-shaped groove, that is, its two side walls are inclined relative to the groove depth direction, so that the second spherical part 132a has two inclined support parts, which respectively slide against the two inclined side walls, which can distribute the force to a certain extent, reduce friction loss, and extend service life.
[0045] In some embodiments, the size of the first spherical part 131a and the second spherical part 132a can be set to hemispherical or smaller, thereby reducing the overall height of the first spherical part 131a and the second spherical part 132a to a certain extent while satisfying the support stability, reducing the overall support height of the third bracket 13, thereby reducing the distance between the first bracket 11 and the second bracket 12, which helps to reduce the overall height of the camera module and expand the applicability of the camera module.
[0046] In other words, compared to the assembly method of rolling and abutting balls between the first bracket 11 and the second bracket 12 and the third bracket 13, the first spherical part 131a and the second spherical part 132a only need to be set as hemispherical, thereby significantly reducing the support height between the first bracket 11 and the second bracket 12, thereby reducing the overall height of the image stabilization mechanism and the camera module.
[0047] See Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 9 , Figure 15 , Figure 19 as well as Figure 23 In some embodiments, in order to improve the accuracy and efficiency of anti-shake movement, the guiding directions of the first guide groove 111 and the second guide groove 121 can be set to be orthogonal; that is, the first direction X and the second direction Y are orthogonal, so that the process of the second bracket 12 and the first bracket 11 moving can be decomposed into movement along the first direction X and the second direction Y.
[0048] Specifically, when the second bracket 12 moves relative to the first bracket 11 along the first direction X, it is restricted by the second guide groove 121 and cannot move relative to the third bracket 13 along the first direction X. Therefore, the second bracket 12 and the third bracket 13 move together along the first guide groove 111 along the first direction X.
[0049] Similarly, when the second bracket 12 moves relative to the first bracket 11 along the second direction Y, the third bracket 13 is unable to move relative to the first bracket 11 along the second direction Y due to the obstruction of the first guide groove 111. Therefore, the second bracket 12 will move alone along the second guide groove 121 along the second direction Y.
[0050] When the relative movement direction of the second bracket 12 with respect to the first bracket 11 is between the first direction X and the second direction Y, the second bracket 12 moves a certain amount relative to the first bracket 11 in both the first direction X and the second direction Y. However, due to the obstruction of the second guide groove 121, the second bracket 12 itself cannot move directly relative to the third bracket 13 along the first direction X. Therefore, the second bracket 12 needs the assistance of the third bracket 13 to move along the first direction X, that is, the second bracket 12 and the third bracket 13 move together along the first direction X to a certain extent. When the second bracket 12 moves relative to the first bracket 11 along the second direction Y, due to the obstruction of the first guide groove 111, the third bracket 13 cannot move relative to the first bracket 11 along the second direction Y. The second bracket 12 will move alone along the second guide groove 121 along the second direction Y.
[0051] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 24 and Figure 25 In some embodiments, a camera module is also provided, including the aforementioned bracket assembly 1, and the bracket assembly 1 enables the image stabilization function of the moving image sensor chip. That is, the camera module includes the aforementioned bracket assembly 1, lens 2, image sensor chip 3, and first drive mechanism 4.
[0052] The image sensor chip 3 is mounted on the second bracket 12. The first bracket 11 serves as the base bracket of the camera module. The first drive mechanism 4 is connected to the first bracket 11 and the second bracket 12 to drive the image sensor chip 3 to move along the first direction X and the second direction Y, thereby achieving image-side image stabilization compensation.
[0053] The lens 2 is disposed on one side of the image sensor chip 3 and is used to project focused imaging light onto the image sensor chip 3.
[0054] In some embodiments, the first driving mechanism 4 adopts a driving architecture based on the voice coil principle, that is, the first driving mechanism 4 may include a first magnet 41 and a first coil 42 arranged opposite to each other; one of the first magnet 41 and the first coil 42 is arranged on the first support 11 and the other is arranged on the second support 12, and the first coil 42 is matched and arranged in the magnetic field coverage area of the first magnet 41, so that when the first coil 42 is energized, it generates an interaction force with the first magnet 41, which serves as the power to drive the first support 11 and the second support 12 to move relative to each other.
[0055] Generally, the direction of the first coil 42 and the direction of the magnetic field of the first magnet 41 can be matched to ensure that the force between the first magnet 41 and the support of the energized first coil 42 is along a predetermined direction. For example, the force between the first magnet 41 and the energized first coil 42 can be along the first direction X or the second direction Y.
[0056] It is worth noting that, in order to simultaneously enable the second support 12 to move relative to the first support 11 along the first direction X and the second direction Y, the number of the first driving mechanism 4 composed of the first magnet 41 and the first coil 42 can be set to two sets, one set of which exerts force along the first direction X, and the other set of which exerts force along the second direction Y.
[0057] In some embodiments, the first magnet 41 and the first coil 42 may be arranged opposite each other along the stacking direction of the first support 11 and the second support 12.
[0058] In order to reduce the impact of the overall height of the first magnet 41 and the first coil 42 on the gap between the first bracket 11 and the second bracket 12, a first magnet groove 115 can be formed on the surface of the first bracket 11 near the second bracket 12. The first magnet 41 is embedded in the first magnet groove 115, thereby reducing the installation height of the first magnet 41 to a certain extent, thereby reducing the overall assembly height of the first bracket 11 and the second bracket 12.
[0059] In some embodiments, considering that the image sensor chip 3 has a certain area and the anti-shake movement is mainly manifested as translation, in order to reduce the undesirable posture changes such as tilting and swaying during the anti-shake translation process of the image sensor chip 3, the first support member 131 and the second support member 132 on the third bracket 13 can be set to at least three, so as to ensure at least three support points to ensure the support stability of the second bracket 12.
[0060] In some embodiments, considering that the first support 11, the third support 13 and the second support 12 are stacked, the first magnet 41 and the first coil 42 can be embedded in the area between the first support 11 and the second support 12, thereby preventing the first magnet 41 and the first coil 42 from exceeding the range of the support component 1, which would increase the module width.
[0061] In some embodiments, in order to reduce the overall height of the camera module, the third bracket 13 and the first drive mechanism 4 can be misaligned to avoid the third bracket 13 and the first drive mechanism 4 stacking together and increasing the overall height of the module.
[0062] Therefore, the third support 13 can be configured as an L-shaped component, that is, the third support 13 may include a first arm 133 and a second arm 134, one end of the first arm 133 and one end of the second arm 134 are connected, and the whole is roughly L-shaped, so that the third support 13 only covers a part of the area between the first support 11 and the second support 12.
[0063] Correspondingly, the first magnet 41 and the first coil 42 can be disposed at one end of the first support arm 133 and beside the second support arm 134. That is, in the stacking direction of the first bracket 11 and the second bracket 12, the first magnet 41 and the first coil 42 avoid the area where the third bracket 13 is located, so that the first magnet 41 and the first coil 42 are disposed in a way that allows space between the first bracket 11 and the second bracket 12.
[0064] The first support member 131 is disposed on the side of the first support arm 133 and the second support arm 134 near the first bracket 11, and the second support member 132 is disposed on the side of the first support arm 133 and the second support arm 134 near the second bracket 12.
[0065] Generally, the first support 11 and the second support 12 are stacked, with space between them for accommodating the third support 13 and the first drive mechanism 4. When there are two sets of the first drive mechanism 4, the first support arm 133, the second support arm 134, and the two sets of the first drive mechanism 4 are arranged sequentially, roughly forming a ring, thereby making full use of the space between the first support 11 and the second support 12, allowing the first drive mechanism 4 to be made larger and obtain greater driving force.
[0066] In some embodiments, the first arm 133 and the second arm 134 may be generally regular elongated strips; they may also be appropriately adjusted according to the shape of the surrounding structure in the camera module to avoid mutual interference.
[0067] See Figure 4 and Figure 5 In some embodiments, the first support arm 133 and the second support arm 134 form an L-shaped component, resulting in a limited overall support area for the third bracket 13. Therefore, under the action of external force, there is a risk that the first bracket 11 and the second bracket 12 will approach each other, causing the first bracket 11 and the second bracket 12 to tilt, affecting the structural stability of the bracket assembly 1.
[0068] To enhance the posture stability of the first support 11 and the second support 12, a first limiting groove 114 can be provided on the first support 11 and a second limiting groove 123 can be provided on the second support 12. The first limiting groove 114 and the second limiting groove 123 are arranged opposite to each other, and a first ball bearing assembly 15 is rolled in the first limiting groove 114 and the second limiting groove 123. The first ball bearing assembly 15 can be arranged on the side of the first support arm 133 and the second support arm 134 to enhance the support of the first support 11 and the second support 12.
[0069] Generally, the first limiting groove 114 and the second limiting groove 123 can be set to be circular to avoid sharp corners, thereby maintaining the smooth rolling of the first ball assembly 15 and reducing the risk of jamming.
[0070] In some embodiments, to accommodate the assembly and arrangement requirements of the module, the imaging light signal is projected onto the image sensor chip 4 along the direction from the first bracket 11 to the second bracket 12. For this purpose, the first bracket 11 and the second bracket 12 can be configured as a ring frame with a window in its middle, directly opposite the photosensitive area of the image sensor chip 3, thereby avoiding obstruction of the imaging light signal.
[0071] In some embodiments, the first coil 42 and the image sensing chip 3 may be respectively disposed on both sides of the second bracket 12, with the first coil 42 disposed opposite to the first magnet 41 and respectively within the gap between the first bracket 11 and the second bracket 12.
[0072] Considering that the first coil 42 and the image sensing chip 3 are active devices that require wired connection to external signal terminals, the first coil 42 and the image sensing chip 3 can be respectively set on both sides of the second bracket 12, which helps to integrate the connection structure and facilitates installation.
[0073] Generally, the first coil 42 and the image sensing chip 3 can be integrated and connected to the first flexible printed circuit board 43. The shape and orientation of the support assembly 1 can be adapted to changes through the design of the first flexible printed circuit board 43.
[0074] See Figure 1 , Figure 3 as well as Figure 24 In some embodiments, in order to constrain and protect the support assembly 1 and reduce interference from external debris, a cover 17 may be provided on the first support 11 to cover the first support 11.
[0075] See Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23 , Figure 24 as well as Figure 25 In some embodiments, another camera module is also provided, including the aforementioned bracket assembly 1, and the camera module implements image stabilization for a moving lens through the bracket assembly 1. That is, the camera module includes the aforementioned bracket assembly 1, lens 2, image sensor chip 3, and second drive mechanism 5.
[0076] The lens 2 is mounted on the second bracket 12. The first bracket 11 serves as the base bracket of the camera module. The second drive mechanism 5 is connected to the first bracket 11 and the second bracket 12 to drive the lens 2 to move along the first direction X and the second direction Y, thereby achieving image stabilization compensation on the light-gathering side.
[0077] The image sensor chip 3 is disposed on one side of the lens 2 and is used to receive the imaging signal emitted from the lens 2.
[0078] In some embodiments, the second driving mechanism 5 adopts a driving architecture based on the voice coil principle, that is, the second driving mechanism 5 may include a second magnet 51 and a second coil 52 arranged opposite to each other; one of the second magnet 51 and the second coil 52 is arranged on the first bracket 11 and the other is arranged on the second bracket 12, and the second coil 52 is matched and arranged in the magnetic field coverage area of the second magnet 51, so that when the second coil 52 is energized, it generates an interaction force with the second magnet 51, which serves as the power to drive the first bracket 11 and the second bracket 12 to move relative to each other.
[0079] Generally, the coil orientation of the second coil 52 and the magnetic field direction of the second magnet 51 can be matched to ensure that the force between the second magnet 51 and the support of the energized second coil 52 is along a predetermined direction. For example, the force between the second magnet 51 and the energized second coil 52 can be along the first direction X or the second direction Y.
[0080] It is worth noting that, in order to simultaneously enable the second support 12 to move relative to the first support 11 along the first direction X and the second direction Y, the number of the second driving mechanism 5 composed of the second magnet 51 and the second coil 52 can be set to two sets, one set of which exerts force along the first direction X, and the other set of which exerts force along the second direction Y.
[0081] See Figure 16 and Figure 17 In some embodiments, considering that the lens 2 is a rotating body with a certain weight and height and a relatively high center of gravity, in order to maintain the stability of the movement of the lens 2 and avoid obstructing the optical path of the emitted light from the lens 2, the third bracket 13 can be configured as a ring frame. That is, the open area in the middle of the third bracket 13 is opposite to the emitting end of the lens 2 so that the emitted light can pass through without obstruction.
[0082] Furthermore, the third bracket 13, being a ring-shaped component, can provide stable and uniform support for the second bracket 12, thereby maintaining the support stability of the lens 2 and reducing the risk of the lens 2 tilting during movement.
[0083] Similarly, the first bracket 11 and the second bracket 12 may also have corresponding open structures such as windows for light to pass through. Generally, the first bracket 11 and the second bracket 12 can be configured as ring-shaped frames.
[0084] In some embodiments, the plurality of first support members 131 and the plurality of second support members 132 may be arranged at equal intervals along the circumference of the ring-shaped third bracket 13.
[0085] In some embodiments, considering that the first guide groove 111 has a guiding and limiting capability, when there are multiple first guide grooves 111, the guidance of multiple first guide grooves 111 needs to be strictly coordinated and unified, so as to reduce the fact that one or more of the multiple first support members 131 are subjected to different resistance directions during movement, which may cause the third bracket 13 to be unbalanced and tilt up on one side, affecting the stability of the support.
[0086] To reduce the processing difficulty of the first guide groove 111 and the risk of instability in the posture of the third support 13, the number of the first guide groove 111 can be set to at least one or two, and a first sliding abutment part 112 can be provided on the first support 11; part of the plurality of first support members 131 are slidably embedded in the first guide groove 111, and another part is slidably abutted on the first sliding abutment part 112, thereby taking into account both the smoothness of movement of the third support 13 and a low risk of posture degradation.
[0087] Similarly, the number of the second guide grooves 121 can also be set to at least one or two, and the second bracket 12 is provided with a second sliding abutment portion 122; some of the plurality of second support members 132 are slidably embedded in the second guide grooves 121, and the other part is slidably abutted on the second sliding abutment portion 122, thereby taking into account both the smoothness of movement of the third bracket 13 and the low risk of attitude degradation.
[0088] In some embodiments, to prevent the first support member 131 outside the first guide groove 111 from swinging disorderly and moving excessively, a third limiting groove 112a can be formed on the first sliding abutment portion 112, so that a portion of the plurality of first support members 131 is located in the third limiting groove 112a, thereby restricting the movement range of the portion of the first support member 131.
[0089] Similarly, in order to prevent the second support member 132 outside the second guide groove 121 from swinging disorderly and moving excessively, a fourth limiting groove 122a can be opened on the second sliding abutment portion 122, so that a portion of the plurality of second support members 132 are located in the fourth limiting groove 122a, thereby restricting the movement range of the portion of the second support member 132.
[0090] In some embodiments, to accommodate shooting at different distances, the camera module is equipped with a focusing mechanism for driving the lens 2 to reciprocate along its optical axis Z. Considering that the first support 11, the second support 12, and the third support 13 are relatively moving entities, to ensure image stabilization accuracy, their relative positions need to be kept stable in non-image stabilization movement directions. Therefore, both the first direction X and the second direction Y are orthogonal to the optical axis Z.
[0091] Therefore, the first bracket 11, the third bracket 13, and the second bracket 12 can be moved as a whole along the optical axis direction Z. Specifically, the bracket assembly 1 further includes a fourth bracket 14, within which the first bracket 11 is movably disposed along the optical axis direction Z. The fourth bracket 14 can be configured as a static base bracket for the camera module, thereby enabling the focusing movement of the lens 2 by moving the first bracket 11, the third bracket 13, and the second bracket 12; and enabling the image-stabilized movement of the lens 2 in the planes containing the first direction X and the second direction Y by moving the second bracket 12 and the third bracket 13.
[0092] Generally, a third driving mechanism 6 is connected between the fourth bracket 14 and the first bracket 11 to drive the first bracket 11 and the fourth bracket 14 to move relative to each other along the optical axis direction Z.
[0093] In some embodiments, in order to achieve smooth movement between the first support 11 and the fourth support 14, a second ball bearing assembly 16 may be rolled between the fourth support 14 and the first support 11.
[0094] Generally, in order to constrain the second ball assembly 16 and maintain the stability of its rolling direction, a third guide groove 113 can be formed on the first bracket 11, and a part of the main body of the second ball assembly 16 rolls against the third guide groove 113.
[0095] Furthermore, a fourth guide groove 141 may be formed on the fourth bracket 14, and the fourth guide groove 141 is disposed opposite to the third guide groove 113, and a portion of the main body of the second ball assembly 16 rolls against the fourth guide groove 141.
[0096] In some embodiments, in order to balance the force on the first support 11, the second ball assembly 16 may include two rows of ball bearings 161, that is, forming two rolling support areas between the first support 11 and the fourth support 14, thereby maintaining the stability of the moving posture of the first support 11 relative to the fourth support 14.
[0097] Correspondingly, the fourth guide groove 141 and the third guide groove 113 can also be configured as two.
[0098] Each row of ball bearings 161 includes at least two balls to ensure the support balance of the ball bearings 161.
[0099] In some embodiments, the third driving mechanism 6 adopts a driving mechanism based on the voice coil principle, that is, the third driving mechanism 6 may include a third magnet 61 and a third coil 62 arranged opposite to each other; one of the third magnet 61 and the third coil 62 is arranged on the first bracket 11, and the other is arranged on the fourth bracket 14, and the third coil 62 is matched and arranged in the magnetic field coverage area of the third magnet 61, so that when the third coil 62 is energized, it generates an interaction force with the third magnet 61, which serves as the power to drive the first bracket 11 and the fourth bracket 14 to move relative to each other.
[0100] In some embodiments, considering that both the first bracket 11 and the second bracket 12 are movable bodies, in order to simplify the electrical connection structure of the second drive mechanism 5 and the third drive mechanism 6 and reduce the assembly difficulty, the second magnet 51 can be set on the second bracket 12, the third magnet 61 can be set on the first bracket 11, and the second coil 52 can be set on the fourth bracket 14.
[0101] During the focusing and image stabilization shift operations, the first bracket 11 and the second bracket 12 generate relative forces with the fourth bracket 14, and both the first bracket 11 and the second bracket 12 move relative to the fourth bracket 14.
[0102] In some embodiments, to simplify the assembly of the second coil 52 and the third coil 62, the second coil 52 and the third coil 62 can be integrated onto the second flexible printed circuit board 53.
[0103] In some embodiments, the fourth support 14 may be a ring frame with a certain depth, so that the first support 11 can reciprocate in the depth direction of the fourth support 14, that is, the optical axis direction Z is set along the depth direction of the fourth support 14. Correspondingly, in the orthogonal direction of the optical axis direction Z, the ball bearing array 161 can roll against the side wall of the fourth support 14 and the side wall of the first support 11.
[0104] On the other hand, the sidewall of the fourth bracket 14 also has adequate space to accommodate the installation of the second coil 52 and the third coil 62.
[0105] In some embodiments, the first bracket 11 may also be a box frame with a certain depth, so that the third magnet 61 can be installed on the side wall of the first bracket 11.
[0106] Correspondingly, the second bracket 12 also has a certain height, so that the side wall of the second bracket 12 has sufficient height to install and accommodate the second magnet 51.
[0107] In other words, a second magnet groove 124 is provided on the side wall of the second bracket 12 to accommodate and fix the second magnet 51, and the groove design can provide a certain space for the second magnet 51 to avoid the overall width of the camera module being too large.
[0108] Similarly, a groove can also be provided on the side wall of the first bracket 11 to accommodate the third magnet 61, thereby providing a certain space for the third magnet 61 through the groove design and avoiding the overall width of the camera module being too large.
[0109] In some embodiments, the first support 11 can be configured as a magnetic attraction element, or at least the area on the first support 11 opposite to the second magnet 51 can be configured as a magnetic attraction element or a magnetic attraction element can be installed; that is, the first support 11 can maintain a certain mutual attraction between itself and the second magnet 51, so that the first support 11 and the second support 12 can be pulled together to stably clamp the third support 13, thereby ensuring the stability of the relative movement between the first support 11, the second support 12 and the third support 13.
[0110] Similarly, the fourth bracket 14 is configured as a magnetic attraction element, or at least the area on the fourth bracket 14 opposite to the third magnet 61 is configured as a magnetic attraction element or a magnetic attraction element is installed; that is, the first bracket 11 can maintain a certain mutual attraction between itself and the third magnet 61, so that the first bracket 11 and the fourth bracket 14 can be pulled together to stably clamp the second ball bearing assembly 16, thereby ensuring the stability of the relative movement between the first bracket 11 and the fourth bracket 14.
[0111] In some embodiments, in order to ensure the stability of the stacked arrangement among the first support 11, the third support 13 and the second support 12, a cover 18 may be provided on the first support 11 to constrain the third support 13 and the second support 12 to the first support 11.
[0112] Similarly, a housing 19 may be provided for the fourth bracket 14, the housing 19 being connected to the box opening side of the fourth bracket 14, thereby sealing the fourth bracket 14.
[0113] See Figure 24 , Figure 25 , Figure 26 and Figure 27 In some embodiments, the camera module can be configured as a mechanism with telephoto shooting function. Specifically, the camera module further includes a prism 7. Along the shooting light path direction, the prism 7 can be disposed between the lens 2 and the image sensor chip 3 to receive and fold the imaging light signal, thereby extending the light path between the lens 2 and the image sensor chip 3, thereby realizing telephoto shooting.
[0114] Depending on the arrangement of the prism 7, the lens 2, and the image sensing chip 3, the camera module can be divided into various different implementation schemes; these will be described in detail below through different embodiments.
[0115] See Figure 24 and Figure 25 In some embodiments, the camera module is a stabilized telephoto module that moves the image sensor chip 3, specifically including the bracket assembly 1, lens 2, image sensor chip 3, and first prism 71.
[0116] The image sensor chip 3 is mounted on the second bracket 12. The first drive mechanism 4 is connected to the first bracket 11 and the second bracket 12. The lens 2 and the image sensor 3 are located on the same side of the first prism 71.
[0117] The imaging light focused by the lens 2 is projected onto the image sensor chip 3 after passing through the first prism 71; and the second bracket 12 and the image sensor chip 3 can be moved by the first driving mechanism 4 to achieve optical image stabilization.
[0118] Generally, the first prism 71 can be configured as a trapezoidal prism, with corresponding incident and exit surfaces planned on the side surface near the lens 2 and the image sensor 3, so that imaging light can enter and exit the first prism 71.
[0119] In some embodiments, the camera module is a stabilized telephoto module that moves the lens 2, and the camera module includes the bracket assembly 1, the lens 2, the image sensor chip 3, and the first prism 71.
[0120] The lens 2 is mounted on the second bracket 12, the second drive mechanism 5 is connected to the first bracket 11 and the second bracket 12, and the lens 2 and the image sensor 3 are located on the same side of the first prism 71.
[0121] The imaging light focused by the lens 2 is projected onto the image sensor chip 3 after passing through the first prism 71; and the second support 12 and the lens 2 can be moved by the second driving mechanism 5 to achieve optical image stabilization.
[0122] Generally, the first prism 71 can be configured as a trapezoidal prism, with corresponding incident and exit surfaces planned on the side surface near the lens 2 and the image sensor 3, so that imaging light can enter and exit the first prism 71.
[0123] In some embodiments, the camera module is a stabilized telephoto module that moves the lens 2 and the image sensor chip 3, and the camera module includes two sets of the bracket assembly 1, the lens 2, the image sensor chip 3 and the first prism 71.
[0124] The image sensing chip 3 is disposed on the second bracket 12 of the first group of bracket assemblies 1, and the first driving mechanism 4 is connected to the first bracket 11 and the second bracket 12 of the first group of bracket assemblies 1.
[0125] The lens 2 is mounted on the second bracket 12 of the second bracket assembly 1, and the second drive mechanism 5 is connected to the first bracket 11 and the second bracket 12.
[0126] The lens 2 and the image sensor 3 are located on the same side of the first prism 71.
[0127] The imaging light focused by the lens 2 is projected onto the image sensor chip 3 after passing through the first prism 71; and the second bracket 12 of the first set of bracket assemblies 1 and the image sensor chip 3 can be moved by the first driving mechanism 4 to achieve optical image stabilization; the second bracket 12 of the second set of bracket assemblies 1 and the lens 2 can also be moved by the second driving mechanism 5 to achieve optical image stabilization.
[0128] Generally, the first prism 71 can be configured as a trapezoidal prism, with corresponding incident and exit surfaces planned on the side surface near the lens 2 and the image sensor 3, so that imaging light can enter and exit the first prism 71.
[0129] See Figure 26 In some embodiments, the camera module includes the bracket assembly 1, lens 2, second drive mechanism 5, image sensor chip 3, and second prism 72.
[0130] The lens 2 is mounted on the second bracket 12, and the second drive mechanism 5 is connected to the first bracket 11 and the second bracket 12. The lens 2 is located on one side of the second prism 72, and the image sensor 3 is located on the other side of the second prism 72. The imaging light focused by the lens 2 is projected onto the image sensor chip after passing through the second prism 72.
[0131] Generally, the incident and exit surfaces of the imaging light of the second prism 72 are located on different sides, and the lens 2, the second prism 72, and the image sensing chip 3 are arranged in an L-shape.
[0132] It is worth noting that the first support member 131 and the second support member 132 in the bracket assembly 1 can be configured as independent ball bearings.
[0133] See Figure 27 In some embodiments, the camera module includes the bracket assembly 1, lens 2, second drive mechanism 5, image sensor chip 3, and third prism 73.
[0134] The lens 2 includes a first lens group 21 and a second lens group 22, and the first lens group 21 and the second lens group 22 are respectively located on both sides of the third prism 73. One or both of the first lens group 21 and the second lens group 22 are configured and mounted on the second bracket 12 of the bracket assembly 1. The image sensor chip 3 is disposed on the light-emitting side of the second lens group 22.
[0135] The imaging light beam passes through the first lens group 21 and is projected onto the third prism 73. After being reflected within the third prism 73, it is emitted and then enters the second lens group 22. The emitted imaging light beam is then projected onto the image sensor chip 3.
Claims
1. A support assembly, characterized in that, include: The first bracket has a first guide groove; The second bracket is disposed opposite to the first bracket, and the second bracket is provided with a second guide groove; The third bracket is disposed between the first bracket and the second bracket, and a first support member and a second support member are respectively disposed on both sides of the third bracket. The first support member abuts against the first guide groove, and the second support member abuts against the second guide groove.
2. The support assembly as claimed in claim 1, characterized in that, The first support member and / or the second support member are made of polyoxymethylene material.
3. The support assembly as claimed in claim 1, characterized in that, The first support member and / or the second support member are integrally formed on the second bracket.
4. The support assembly as claimed in claim 1, characterized in that, The first support member is slidably engaged with the first guide groove, and the surface of the first support member that contacts the first guide groove is spherical. And / or, the second support member slides in conjunction with the second guide groove, and the side surface of the second support member that contacts the second guide groove is spherical.
5. A camera module, characterized in that, include: Image sensor chip, driving mechanism, lens, and bracket assembly as described in any one of claims 1 to 4; The image sensor chip or the lens is mounted on the second bracket, the lens is mounted on one side of the image sensor, and the driving mechanism is connected to the first bracket and the second bracket to drive the image sensor to move relative to the lens.
6. The camera module as described in claim 5, characterized in that, The third support includes: a first arm and a second arm; The second arm is connected to the first arm to form an L-shaped component. The first support member is disposed on the side of the first arm and the second arm near the first bracket, and the second support member is disposed on the side of the first arm and the second arm near the second bracket.
7. The camera module as described in claim 6, characterized in that, The first bracket has a first limiting groove, and the second bracket has a second limiting groove. The first limiting groove and the second limiting groove are arranged opposite to each other, and a ball bearing is rolled in the first limiting groove and the second limiting groove. The ball bearing is arranged to give way to the first support arm and the second support arm.
8. The camera module as described in claim 5, characterized in that, The bracket assembly further includes a fourth bracket, and the first bracket is movably disposed within the fourth bracket along the optical axis of the lens to move the lens to achieve focusing; The first bracket and the second bracket are spaced apart along the optical axis of the lens, and the relative movement direction of the second bracket and the first bracket is configured to be orthogonal to the optical axis.
9. A camera module, characterized in that, include: Lens, drive mechanism, image sensor chip, first prism, and bracket assembly as described in any one of claims 1 to 4; The lens or the image sensor chip is mounted on the second bracket, the lens and the image sensor are located on the same side of the first prism, and the driving mechanism is connected to the first bracket and the second bracket.
10. A camera module, characterized in that, include: Lens, drive mechanism, image sensor chip, second prism, and bracket assembly as described in any one of claims 1 to 4; The lens or the image sensor chip is mounted on the second bracket, the lens is located on one side of the second prism, the image sensor is located on the other side of the second prism, and the drive mechanism is connected to the first bracket and the second bracket.