A camera module

Abstract

The application discloses a camera module, comprising: a lens assembly defining an optical axis; the lens assembly comprises a focusing carrier, a base and a first magnetic member, wherein the focusing carrier is movably arranged in the base, and the first magnetic member is arranged on the focusing carrier; an aperture assembly arranged on the object side of the lens assembly, the aperture assembly comprises an aperture blade, a rotating carrier, a fixed support and a second magnetic member, the fixed support is fixedly integrated with the base, the rotating carrier is rotatably arranged in the fixed support, the aperture blade is movably connected with the rotating carrier and the fixed support, and the second magnetic member is arranged on the rotating carrier; wherein the first magnetic member and the second magnetic member generate magnetic attraction force to keep the focusing carrier and the rotating carrier in abutment, so as to convert the translational movement of the focusing carrier along the optical axis into the rotational movement of the rotating carrier around the optical axis, and drive the aperture blade to rotate.

Description

Technical Field

[0001] This application relates to the field of camera module technology, and mainly to a camera module. Background Technology

[0002] With the rapid development of portable imaging devices such as smartphones, drones, and vehicle cameras, the requirements for image quality in camera modules continue to increase. As a core optical element that controls the amount of light entering and the depth of field effect, the adjustable capability of the variable aperture has become an important technical feature of high-end camera modules.

[0003] However, in existing technologies, variable apertures are mostly mounted on the lens as a single module, and usually require a separate drive component (such as a voice coil motor) to control the opening and closing of the aperture blades. The introduction of a separate drive component not only significantly increases the overall size of the variable aperture, leading to an increase in the overall size of the camera module, which contradicts the current trend towards thinner and smaller devices, but also increases the overall weight of the lens. This results in a heavier load on the focusing motor when driving the optical lens for autofocus, potentially causing insufficient driving force, sluggish response, or decreased accuracy, thus affecting focusing performance and reliability.

[0004] Therefore, there is an urgent need for a new camera module with a variable aperture to solve the above problems. Summary of the Invention

[0005] One objective of this application is to address the problem of increased size in existing camera modules due to the presence of variable apertures.

[0006] Another objective of this application is to solve the problem in the prior art where the increased load on the focusing motor due to the presence of a variable aperture results in insufficient driving force and affects focusing accuracy.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: A camera module, comprising: Lens assembly, defining an optical axis; The lens assembly includes a focusing carrier, a base, and a first magnetic element, wherein the focusing carrier is movably disposed within the base, and the first magnetic element is disposed on the focusing carrier. An aperture assembly is disposed on the object side of the lens assembly. The aperture assembly includes aperture blades, a rotating carrier, a fixed bracket, and a second magnetic element. The aperture blades are movably connected to the rotating carrier and the fixed bracket. The fixed bracket is fixedly connected to the base. The rotating carrier is movably disposed on the fixed bracket. The second magnetic element is disposed on the rotating carrier. The first magnetic element and the second magnetic element generate a magnetic attraction force to keep the focusing carrier in contact with the rotating carrier, thereby converting the translational motion of the focusing carrier along the optical axis into the rotational motion of the rotating carrier around the optical axis, thus driving the aperture blades to rotate.

[0008] As a preferred embodiment, the first magnetic element is inclined and includes two opposite magnetic poles, the direction of which intersects the direction of the optical axis.

[0009] As a preferred embodiment, the first magnetic element has only one magnetic pole facing the second magnetic element.

[0010] As a preferred embodiment, the second magnetic element is vertically disposed and is implemented as a magnet. The second magnetic element includes two opposite magnetic poles arranged in a direction perpendicular to the optical axis, wherein the magnetic pole direction of the first magnetic element intersects with the magnetic pole direction of the second magnetic element.

[0011] As a preferred embodiment, the rotating carrier and the focusing carrier are spaced apart along the optical axis. The focusing carrier includes a focusing carrier body and a first moving block, the first moving block being disposed on the top of the focusing carrier body and extending along the optical axis. The rotating carrier includes a second moving block, the second moving block extending radially from the side of the rotating carrier.

[0012] As a preferred embodiment, the first magnetic element is disposed on the first movable block, and the second magnetic element is disposed on the second movable block, wherein the magnetic attraction between the first magnetic element and the second magnetic element can keep the first movable block and the second movable block in contact.

[0013] As a preferred embodiment, the first moving block has an inclined surface, the inclined direction of which is the same as the inclined direction of the first magnetic element, and both the inclined surface of the first magnetic element and the inclined surface face the second moving block.

[0014] As a preferred embodiment, the side of the fixed bracket is provided with a first opening, and the second moving block is disposed in the first opening. The first moving block extends into the first opening as the focusing carrier moves axially, and the second moving block and the first moving block maintain frictional contact within the first opening.

[0015] As a preferred embodiment, the circumferential dimension of the first opening is greater than the sum of the circumferential dimensions of the first moving block and the second moving block.

[0016] As a preferred embodiment, when the focusing carrier drives the first moving block to move along the optical axis, the inclined surface pushes the second moving block that abuts against it, causing the second moving block to move along the inclined surface while generating a circumferential displacement component, thereby driving the rotating carrier to rotate around the optical axis.

[0017] As a preferred embodiment, when the first magnetic element moves along the optical axis between the extreme positions on the image side and the extreme positions on the object side, the closest distance between the corner of the second magnetic element near the first magnetic element and the surface of the first magnetic element facing the second magnetic element is always stable within the threshold range.

[0018] As a preferred embodiment, the lens assembly further includes a focusing coil and a focusing magnet, the focusing magnet being disposed on the focusing carrier, the focusing coil being disposed on the base, and the focusing magnet and the focusing coil being disposed opposite each other in a direction perpendicular to the optical axis; wherein, the first magnetic element is disposed at intervals along the optical axis on the object side of the focusing magnet.

[0019] As a preferred embodiment, the first magnetic element is inclined relative to the focusing magnet, wherein the focusing magnet includes two opposite magnetic poles arranged along the optical axis, the first magnetic element includes two opposite magnetic poles arranged along a direction intersecting the optical axis, and the magnetic pole direction of the focusing magnet intersects with the magnetic pole direction of the first magnetic element.

[0020] As a preferred embodiment, the aperture assembly further includes a first magnetic attraction portion and a second magnetic attraction portion, wherein the first magnetic attraction portion and the second magnetic attraction portion are symmetrically arranged with respect to the optical axis, and the first magnetic attraction portion and the second magnetic attraction portion respectively generate magnetic attraction forces along the optical axis direction.

[0021] As a preferred embodiment, the first magnetic attraction part includes a first sub-magnetic attraction structure and a second sub-magnetic attraction structure, and the second magnetic attraction part includes a third sub-magnetic attraction structure and a fourth sub-magnetic attraction structure. The first sub-magnetic attraction structure and the third sub-magnetic attraction structure are symmetrically arranged with respect to the optical axis, and the second sub-magnetic attraction structure and the fourth sub-magnetic attraction structure are also symmetrically arranged with respect to the optical axis, so as to generate a magnetic attraction force symmetrical about the optical axis.

[0022] Compared with the prior art, the beneficial effects of this application are as follows: (1) In this application, the aperture assembly and lens assembly are integrated into a single structure, forming an integrated drive architecture. This eliminates the need for a separate drive magnet and drive coil in the aperture assembly, saving the size and weight of the independent drive components. This not only simplifies the structure of the aperture assembly itself but also avoids the added weight of the lens assembly caused by the independent drive components of the aperture assembly, reducing the drive load on the lens assembly. This is beneficial for the miniaturization and weight reduction of the camera module and can also improve the focusing accuracy of the lens assembly.

[0023] (2) Compared with the solution of configuring an independent driving magnet and driving coil for the aperture assembly, which requires setting the power supply circuit board on the fixed bracket or rotating carrier, it is necessary to consider the bending structure of the circuit board and the risk of circuit board failure. However, the integrated driving architecture of the aperture assembly and lens assembly in this application makes the aperture assembly free from any electrical connection, fundamentally solving the problem of circuit board bending and failure, making the structure of the aperture assembly simpler and significantly improving the reliability of operation.

[0024] (3) Existing variable aperture integration solutions mostly adopt mechanical connection structures, such as snap-fit ​​or pin structures. However, such structures are subject to mechanical wear and dust pollution, which affects the reliability and performance of the camera module. The driving method proposed in this application does not have the risks of mechanical wear and dust pollution, thus improving the reliability and accuracy of aperture control. Attached Figure Description

[0025] Figure 1 This is a cross-sectional schematic diagram of a camera module according to an embodiment of this application.

[0026] Figure 2 This is an exploded view of the lens assembly in a camera module according to an embodiment of this application.

[0027] Figure 3 This is an exploded view of the aperture assembly in a camera module according to an embodiment of this application.

[0028] Figure 4 This is a three-dimensional structural diagram of a camera module according to an embodiment of this application.

[0029] Figure 5 This is a schematic diagram of the structure of the first magnetic component and the second magnetic component in a camera module according to an embodiment of this application.

[0030] Figure 6 This is a cross-sectional schematic diagram of the aperture assembly and lens assembly in a camera module according to an embodiment of this application.

[0031] Figure 7 This is a planar schematic diagram of a camera module in the first state according to an embodiment of this application.

[0032] Figure 8 This is a planar schematic diagram of the camera module in the second state according to an embodiment of this application.

[0033] Figure 9 This is a schematic diagram of the structure of the first magnetic component and the second magnetic component in a camera module according to another embodiment of this application.

[0034] Figure 10 This is an exploded view of the aperture assembly in a camera module according to an embodiment of this application, viewed from below.

[0035] Figure 11 This is a schematic diagram of the small aperture of an aperture assembly according to an embodiment of this application.

[0036] Figure 12 This is a schematic diagram of the large aperture of an aperture assembly according to an embodiment of this application.

[0037] In the diagram: 1. Camera module; 10. Lens assembly; 11. Focusing carrier; 111. Focusing carrier body; 112. First moving block; 1121. Inclined surface; 12. Base; 13. Focusing magnet; 14. Focusing coil; 15. First magnetic component; 16. Focusing support; 17. Focusing magnetic suction part; 18. Conductive substrate; 19. Position sensing element; 20. Aperture assembly; 21. Rotating carrier; 211. Second moving block; 22. Fixed support Frame; 221, First opening; 23, Aperture blade; 231, Aperture blade body; 232, Aperture blade connecting end; 24, Second magnetic component; 25, Rotating support; 26, First magnetic attraction part; 261, First sub-magnetic attraction structure; 262, Second sub-magnetic attraction structure; 27, Second magnetic attraction part; 271, Third sub-magnetic attraction structure; 272, Fourth sub-magnetic attraction structure; 201, Aperture aperture; 30, Outer shell; 40, Photosensitive component; O, Optical axis. Detailed Implementation

[0038] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0039] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0040] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0041] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0042] In the description of this application, it is understood that the term "optical axis direction" refers to the direction of light propagation from the incident light side to the emitting light side in the camera module, i.e., the height direction; "object side" refers to the side on which the light is incident, and "image side" refers to the side on which the light is emitted; "circumferential" refers to the direction of rotation about the optical axis; and "radial" refers to the direction perpendicular to the optical axis and away from the optical axis. Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0043] like Figures 1 to 12 As shown, this embodiment provides a camera module 1, which includes a lens assembly 10, an aperture assembly 20, and a photosensitive assembly 40. The aperture assembly 20 is located on the object side of the lens assembly 10, and the photosensitive assembly 40 is located on the image side of the lens assembly 10, so that light incident from the aperture assembly 20 passes through the lens assembly 10 and reaches the photosensitive assembly 40 for imaging. The lens assembly 10 defines an optical axis O, and the aperture assembly 20 has an axis passing through its center, with the axis of the aperture assembly 20 coinciding with the optical axis O of the lens assembly 10.

[0044] In some embodiments, the photosensitive assembly 40 includes a chip circuit board, a photosensitive chip electrically connected to the chip circuit board, at least one electronic component disposed on the chip circuit board, and a filter assembly. The filter assembly includes a filter element and a filter element support for supporting the filter element. The filter assembly is disposed on the object side of the photosensitive chip and is used to filter infrared light or other stray light in the incident light, thereby improving the color reproduction and signal-to-noise ratio of the image.

[0045] In some embodiments, the aperture assembly 20 and the lens assembly 10 adopt an integrated structure, that is, the aperture assembly 20 and the lens assembly 10 are fixed together, and the aperture assembly 20 is fixed to the top of the lens assembly 10. During the focusing process of the lens assembly 10, at least a portion of the lens assembly 10 can extend into the aperture assembly 20, which allows the aperture assembly 20 and the lens assembly 10 to overlap in a direction perpendicular to the optical axis O, thereby effectively compressing the overall height of the camera module 1 and meeting the miniaturization requirement of the camera module 1.

[0046] Furthermore, the aperture assembly 20 and the lens assembly 10 adopt an integrated structure to convert the translational motion of the lens assembly 10 along the optical axis into the rotational motion of the aperture assembly 20 around the optical axis O. In this way, the independent driving component of the aperture assembly 20 can be eliminated, the size of the aperture assembly 20 and the camera module 1 can be reduced, the load on the lens assembly 10 can be reduced, and the focusing accuracy of the lens assembly 10 can be improved.

[0047] like Figure 2 As shown, the lens assembly 10 includes a focusing carrier 11, a base 12, a focusing magnet 13, a focusing coil 14, a first magnetic element 15, and an optical lens. The optical lens is disposed within the focusing carrier 11, and the focusing carrier 11 movably positions the optical lens within the base 12. The first magnetic element 15 is disposed within the focusing carrier 11. The focusing magnet 13 is disposed within the focusing carrier 11, and the focusing coil 14 is disposed within the base 12. The focusing magnet 13 and the focusing coil 14 are positioned opposite each other along a direction perpendicular to the optical axis, interacting to generate a driving force along the optical axis, thereby driving the focusing magnet 13 and the focusing carrier 11 to move relative to the base 12 along the optical axis.

[0048] In some embodiments, the number of focusing magnets 13 is at least one, and the number of focusing coils 14 is at least one. At least one focusing coil 14 and at least one focusing magnet 13 are disposed on the side of the lens assembly 10. For example, at least one focusing magnet 13 is disposed on the outer side wall of the focusing carrier 11, and at least one focusing coil 14 is disposed on the inner side wall of the base 12, so that at least one focusing magnet 13 and at least one focusing coil 14 can be disposed opposite each other in a direction perpendicular to the optical axis.

[0049] In some embodiments, there are two focusing magnets 13 and two focusing coils 14. The two focusing magnets 13 are symmetrically arranged on the outer sidewall of the focusing carrier 11, and the two focusing coils 14 are symmetrically arranged on the inner sidewall of the base 12. One of the focusing magnets 13 is positioned opposite to one of the focusing coils 14, and the other focusing magnet 13 is positioned opposite to the other focusing coil 14. It should be understood that this symmetrical arrangement ensures a symmetrical distribution of the driving force generated between the focusing magnets 13 and the focusing coils 14, preventing the focusing carrier 11 from deflecting or tilting during movement, ensuring the stability of the optical lens movement along the optical axis, and improving the focusing accuracy of the lens assembly 10.

[0050] The first magnetic element 15 is a magnet independent of the focusing magnet 13. The first magnetic element 15 is positioned above the focusing magnet 13, meaning it is spaced apart along the optical axis on the object side of the focusing magnet 13. This brings the first magnetic element 15 closer to the aperture assembly 20, reducing the distance along the optical axis between the first magnetic element 15 of the lens assembly 10 and the second magnetic element 24 of the aperture assembly 20. According to the inverse relationship between magnetic force and distance, reducing the distance increases the magnetic force, i.e., increases the magnetic force between the first magnetic element 15 of the lens assembly 10 and the second magnetic element 24 of the aperture assembly 20. This allows for sufficient driving force to drive the aperture assembly 20 even within a smaller focusing displacement range, reducing the stringent requirements on the focusing travel.

[0051] In some embodiments, such as Figure 3 and Figure 6 As shown, the aperture assembly 20 includes a rotating carrier 21, a fixed bracket 22, aperture blades 23, and a second magnetic component 24. The fixed bracket 22 is fixed integrally with the base 12. The rotating carrier 21 is rotatably disposed within the fixed bracket 22. The aperture blades 23 are movably connected to the rotating carrier 21 and the fixed bracket 22, rotating under the influence of the rotating carrier 21. The aperture blades 23 define the aperture diameter 201 between each aperture blade. When the rotating carrier 21 rotates relative to the fixed bracket 22, the size of the aperture diameter 201 can be adjusted.

[0052] The second magnetic element 24 is disposed on the rotating carrier 21. The second magnetic element 24 and the first magnetic element 15 are disposed opposite each other along the optical axis to generate a magnetic attraction between the first magnetic element 15 and the second magnetic element 24. The magnetic attraction between the first magnetic element 15 and the second magnetic element 24 can convert the translational motion of the lens assembly 10 along the optical axis into the rotational motion of the aperture assembly 20 around the optical axis O, thereby driving the aperture blades 23 to rotate and change the size of the aperture aperture 201. Specifically, the first magnetic element 15 and the second magnetic element 24 generate a magnetic attraction to keep the focusing carrier 11 in contact with the rotating carrier 21, so as to convert the translational motion of the focusing carrier 11 along the optical axis into the rotational motion of the rotating carrier 21 around the optical axis O, thereby driving the aperture blades 23 to rotate and change the size of the aperture aperture 201.

[0053] In some embodiments, the rotating carrier 21 and the focusing carrier 11 are spaced apart along the optical axis, with the rotating carrier 21 positioned above the focusing carrier 11. Further, the focusing carrier 11 includes a focusing carrier body 111 and a first moving block 112, the first moving block 112 being disposed on the top of the focusing carrier body 111 and extending along the optical axis. The rotating carrier 21 includes a second moving block 211, the second moving block 211 extending radially away from the side of the rotating carrier 21. A first magnetic element 15 is disposed on the first moving block 112, and a second magnetic element 24 is disposed on the second moving block 211. The magnetic attraction between the first magnetic element 15 and the second magnetic element 24 keeps the first moving block 112 and the second moving block 211 in contact. When the first moving block 112 moves along the optical axis with the focusing carrier, the first moving block 112 pushes the second moving block 211 to rotate in the circumferential direction, thereby driving the rotating carrier 21 and the aperture blades 23 to rotate, so as to change the size of the aperture aperture 201 of the aperture assembly 20.

[0054] In some embodiments, the first magnetic element 15 can be implemented as a magnet, and the second magnetic element 24 can be implemented as a magnetically conductive element, such as a magnet or a magnetic yoke. Grooves can be provided in the first moving block 112 and the second moving block 211 to place the first magnetic element 15 and the second magnetic element 24 into the grooves of the first moving block 112 and the second moving block 211, respectively. Alternatively, the first magnetic element 15 can be integrally formed with the first moving block 112, and the second magnetic element 24 can be integrally formed with the second moving block 211, using an insert injection molding process; this application does not limit this approach.

[0055] Furthermore, the first magnetic element 15 is inclined, and the first magnetic element 15 includes two opposite magnetic poles, the direction of which (from the N pole to the S pole) intersects the direction of the optical axis O. Specifically, the first magnetic element 15 is inclined relative to the focusing magnet 13. The focusing magnet 13 includes two opposite magnetic poles arranged along the optical axis, and the first magnetic element 15 includes two opposite magnetic poles arranged along a direction intersecting the optical axis O. The direction of which the focusing magnet 13 (from the N pole to the S pole) intersects the direction of which the first magnetic element 15 (from the N pole to the S pole).

[0056] In some embodiments, the first magnetic element 15 is disposed at an angle relative to the second magnetic element 24. When the second magnetic element 24 is implemented as a magnet, such as Figure 9 As shown, the second magnetic element 24 includes two opposite magnetic poles arranged perpendicular to the optical axis. The magnetic pole direction of the first magnetic element 15 (from the N pole to the S pole) intersects with the magnetic pole direction of the second magnetic element 24 (from the N pole to the S pole), and the magnetic pole direction of the second magnetic element 24 (from the N pole to the S pole) is perpendicular to the magnetic pole direction of the focusing magnet 13 (from the N pole to the S pole). Furthermore, the magnetic poles of the first magnetic element 15 facing the second magnetic element 24 are opposite to the magnetic poles of the second magnetic element 24 facing the first magnetic element 15, so as to generate a magnetic attraction force through the opposite magnetic poles, thereby keeping the first moving block 112 and the second moving block 211 in contact through the magnetic attraction force.

[0057] In some embodiments, such as Figure 5 As shown, the first magnetic element 15 is inclined, and the second magnetic element 24 is vertically positioned. Only one magnetic pole of the first magnetic element 15 faces the second magnetic element 24. That is, on a projection plane perpendicular to the optical axis, the central axis of the projection of the first magnetic element 15 intersects the central axis of the projection of the second magnetic element 24. Thus, the magnetic force of the first magnetic element 15 towards the second magnetic element 24 is maximized.

[0058] When the first magnetic element 15 is at its extreme position on the image side, the second magnetic element 24 is positioned above the first magnetic element 15. There is a minimum distance between the corner of the second magnetic element 24 near the first magnetic element 15 and the surface of the first magnetic element 15 facing the second magnetic element 24, maximizing the magnetic attraction between them. Under this magnetic attraction, the corner of the second moving block 211 remains in contact with the top of the inclined surface 1121 of the first moving block 112.

[0059] When the first magnetic element 15 is at its extreme position on the side of the object, the second magnetic element 24 is located to the side of the first magnetic element 15. There is a minimum distance between the corner of the second magnetic element 24 near the first magnetic element 15 and the surface of the first magnetic element 15 facing the second magnetic element 24, maximizing the magnetic attraction between them. Under the action of this magnetic attraction, the corner of the second moving block 211 remains in contact with the bottom end of the inclined surface 1121 of the first moving block 112.

[0060] Furthermore, as the first magnetic component 15 moves along the optical axis between the image-side and object-side extreme positions, the closest distance between the corner of the second magnetic component 24 near the first magnetic component 15 and the surface of the first magnetic component 15 facing the second magnetic component 24 remains stable within a certain threshold range. It should be understood that, since magnetic attraction is inversely proportional to distance, the narrow fluctuation of distance keeps the magnetic attraction between the first magnetic component 15 and the second magnetic component 24 stable throughout the entire optical focusing stroke, avoiding the problem of excessively strong magnetic attraction at one extreme position leading to excessive frictional resistance, or insufficient magnetic attraction at another extreme position leading to contact failure. Moreover, the stable magnetic attraction ensures that the first moving block 112 and the second moving block 211 maintain reliable frictional contact throughout the entire stroke, preventing contact disengagement or pressure imbalance due to excessive distance changes, thus ensuring the continuity and stability of the inclined plane transmission mechanism. Because of the stable magnetic attraction, the thrust of the inclined plane drive is evenly distributed throughout the entire stroke, ensuring a stable mapping relationship between the aperture 201 and the travel distance. This results in better consistency in the adjustment accuracy of the aperture at any position of the aperture 201. The movement between the extreme positions on the image side and the extreme positions on the object side can also be referred to as the full-stroke movement.

[0061] However, if both the first magnetic element 15 and the second magnetic element 24 are vertically arranged, that is, the magnetic pole directions of the first magnetic element 15 and the second magnetic element 24 are both parallel to the optical axis O, and the surface of the first magnetic element 15 facing the second magnetic element 24 is parallel to the optical axis direction, as the first magnetic element 15 moves along the optical axis from the extreme position on the image side to the extreme position on the object side, the distance between the corner of the second magnetic element 24 near the first magnetic element 15 and the surface of the first magnetic element 15 facing the second magnetic element 24 will gradually increase, resulting in increased distance fluctuations and unstable changes in magnetic attraction. Especially at the extreme position on the object side, the distance between the first magnetic element 15 and the second magnetic element 24 is the largest, and the magnetic attraction is the smallest, thus posing a risk of aperture assembly 20 failure.

[0062] In some embodiments, a magnetic yoke is attached to the side of the first magnetic element 15 away from the second magnetic element 24, and / or the side of the second magnetic element 24 away from the first magnetic element 15, to enhance the magnetic attraction between the first magnetic element 15 and the second magnetic element 24.

[0063] Correspondingly, the first moving block 112 has an inclined surface 1121, the inclination direction of which is the same as that of the first magnetic element 15, so that the first magnetic element 15 can be inclinedly disposed within the first moving block 112. Furthermore, both the inclined surface of the first magnetic element 15 and the inclined surface 1121 of the first moving block 112 face the second moving block 211. It should be understood that due to the magnetic attraction between the first magnetic element 15 and the second magnetic element 24, the magnetic attraction keeps the first moving block 112 and the second moving block 211 in contact. The inclined surface 1121 of the first moving block 112 can convert the translation of the first moving block 112 along the optical axis into the rotation of the second moving block 211 in the circumferential direction.

[0064] Specifically, when the focusing carrier 11 drives the first moving block 112 to move along the optical axis, the inclined surface 1121 of the first moving block 112 pushes the second moving block 211 in contact with it, causing the second moving block 211 to move along the inclined surface 1121. Due to the inclined surface 1121, the second moving block 211 generates a circumferential displacement component while moving along the inclined surface 1121, thereby driving the rotating carrier 21 and the aperture blades 23 to rotate around the optical axis O, thus changing the aperture diameter 201. In other words, through magnetic attraction and the setting of the inclined surface 1121, the axial displacement moving along the optical axis can be converted into a circumferential displacement rotating around the optical axis O.

[0065] In some embodiments, such as Figure 7 As shown, in the first state, the focusing carrier 11 is at its extreme position moving towards the image side, and the focusing carrier 11 is furthest from the second magnetic element 24. The first magnetic element 15 is located below the second magnetic element 24 and tilted towards the second magnetic element 24. A magnetic attraction force is generated between the first magnetic element 15 and the second magnetic element 24. Under the action of the magnetic attraction force, the first moving block 112 and the second moving block 211 maintain frictional contact. Specifically, for example, the corner of the second moving block 211 near the first moving block 112 abuts against the top of the inclined surface 1121 of the first moving block 112. At this time, the aperture blades 23 are in the closed state, and the aperture diameter 201 is the minimum aperture diameter 201.

[0066] When the focusing coil 14 is energized, the focusing coil 14 and the focusing magnet 13 interact to generate a driving force that moves along the optical axis. This driving force drives the focusing carrier 11, the focusing magnet 13, and the first magnetic element 15 to move together towards the object side along the optical axis. During the movement, the first moving block 112 moves towards the object side, and a magnetic attraction force is generated between the first magnetic element 15 and the second magnetic element 24. Under the action of the magnetic attraction force, the second moving block 211 is pushed by the first moving block 112 to generate a circumferential displacement. Specifically, for example, the second moving block 211 moves from the top of the inclined surface 1121 of the first moving block 112 towards the bottom of the inclined surface 1121 along the inclination direction of the inclined surface 1121. This causes the second moving block 211 to move downward along the inclined surface 1121 while generating a circumferential displacement component, thereby converting the translation of the first moving block 112 towards the object side along the optical axis into a circumferential movement of the second moving block 211 around the optical axis O. Furthermore, the circumferential displacement of the second moving block 211 gradually opens the aperture blades 23, thereby gradually increasing the aperture diameter 201.

[0067] In some embodiments, such as Figure 8 As shown, in the second state, the focusing carrier 11 is at its extreme position moving towards the object side, and is closest to the second magnetic element 24. The first magnetic element 15 is located to the side of the second magnetic element 24 and tilted towards it. A magnetic attraction force is generated between the first magnetic element 15 and the second magnetic element 24. Under the action of this magnetic attraction force, the first moving block 112 and the second moving block 211 maintain frictional contact. Specifically, for example, the corner of the second moving block 211 near the first moving block 112 abuts against the bottom end of the inclined surface 1121 of the first moving block 112. At this time, the aperture blades 23 are in the open state, and the aperture diameter 201 is at its maximum.

[0068] When a reverse current is applied to the focusing coil 14, the focusing coil 14 and the focusing magnet 13 interact to generate a driving force that moves along the optical axis. This driving force drives the focusing carrier 11, the focusing magnet 13, and the first magnetic element 15 to move together towards the image side along the optical axis. During this movement, the first moving block 112 moves towards the image side, and a magnetic attraction force is generated between the first magnetic element 15 and the second magnetic element 24. Under the action of the magnetic attraction force, the second moving block 211 will generate a circumferential displacement in the opposite direction. Specifically, for example, the second moving block 211 near the corner of the first moving block 112 moves towards the top of the inclined surface 1121 of the first moving block 112 along the inclination direction of the inclined surface 1121 at the bottom end of the first moving block 112. This causes the second moving block 211 to move upward along the inclined surface 1121 while generating a component of circumferential displacement, so as to convert the translation of the first moving block 112 towards the image side along the optical axis into a circumferential movement of the second moving block 211 rotating around the optical axis O. Then, the aperture blades 23 are gradually closed by the circumferential displacement of the second moving block 211, thereby gradually reducing the aperture diameter 201 and eventually returning to the first state.

[0069] In this application, the aperture assembly 20 and the lens assembly 10 are integrated into a single structure, forming an integrated drive architecture. Specifically, the focusing coil 14 and focusing magnet 13 of the lens assembly 10 serve as the sole power source in the entire camera module 1. During optical focusing, as the focusing carrier 11 moves along the optical axis, a magnetic attraction is generated between the first magnetic element 15 on the focusing carrier 11 and the second magnetic element 24 on the rotating carrier 21. This maintains frictional contact between the first moving block 112 and the second moving block 211. The inclined surface 1121 of the first moving block 112 converts the axial displacement of the focusing carrier 11 into the circumferential displacement of the rotating carrier 21, thereby driving the aperture blades 23 to rotate and change the size of the aperture aperture 201.

[0070] This eliminates the need for a separate drive magnet and drive coil in the aperture assembly 20, saving on the size and weight of the independent drive component. This not only simplifies the structure of the aperture assembly 20 itself but also avoids increasing the added weight of the lens assembly 10 due to the independent drive component of the aperture assembly 20, thus reducing the drive load on the lens assembly 10. This facilitates the miniaturization and weight reduction of the camera module 1 and also improves the focusing accuracy of the lens assembly 10.

[0071] Moreover, compared to the solution of separately configuring an independent driving magnet and driving coil for the aperture assembly 20, which requires setting up a power supply circuit board on the fixed bracket 22 or rotating carrier 21, it is necessary to consider the bending structure of the circuit board and the risk of circuit board failure. However, the integrated driving architecture of the aperture assembly 20 and the lens assembly 10 in this application eliminates the need for any electrical connection of the aperture assembly 20, fundamentally solving the problems of circuit board bending and failure, making the structure of the aperture assembly 20 simpler and significantly improving the reliability of operation.

[0072] Existing variable aperture integration solutions mostly employ mechanical connection structures, such as snap-fit ​​or pin-type structures. However, such structures are susceptible to mechanical wear and dust contamination, affecting the reliability and performance of the camera module 1. The driving method proposed in this application eliminates the risks of mechanical wear and dust contamination, thereby improving the reliability and accuracy of aperture control.

[0073] It is worth mentioning that, in some embodiments, since the movement of the focusing carrier 11 along the optical axis is continuous, the circumferential movement of the second moving block 211 after the slope transformation is also continuous, so the aperture diameter 201 can continuously change between the minimum and the maximum.

[0074] Furthermore, in some embodiments, the corners of the second moving block 211 are rounded to reduce the friction between the first moving block 112 and the second moving block 211, thereby improving the smoothness of aperture aperture 201 adjustment of the aperture assembly 20. Even further, the inclined surface 1121 of the first moving block 112 is provided with a protrusion to further reduce the friction between the first moving block 112 and the second moving block 211.

[0075] In some embodiments, the fixed bracket 22 is fixedly connected to the base 12, serving as a fixed support structure for the aperture assembly 20, and is positioned above the lens assembly 10. The fixed bracket 22 has a receiving space in its middle, within which the rotating carrier 21 can rotate around the optical axis O. The bottom of the fixed bracket 22 has a through hole communicating with the receiving space. At least a portion of the lens assembly 10 can extend into the receiving space of the fixed bracket 22 through this through hole when moving along the optical axis, thereby achieving a nested fit between the lens assembly 10 and the aperture assembly 20, effectively compressing the overall height of the camera module 1.

[0076] Furthermore, such as Figure 4 and Figure 10As shown, the fixed bracket 22 has a first opening 221 on its side, which communicates with the receiving space. The second moving block 211 extends from the side of the rotating carrier 21 away from the optical axis and is disposed within the first opening 221. The first moving block 112 extends from the top of the focusing carrier 11 along the optical axis and can extend into the first opening 221 as the focusing carrier 11 moves axially, thereby maintaining frictional contact between the second moving block 211 and the first moving block 112 within the first opening 221 to achieve inclined plane transmission.

[0077] Furthermore, the circumferential dimension of the first opening 221 is greater than the sum of the circumferential dimensions of the first moving block 112 and the second moving block 211. It should be understood that when the focusing carrier 11 moves along the optical axis, the inclined surface of the first moving block 112 pushes the second moving block 211 to move circumferentially, thereby driving the rotating carrier 21 to rotate. Therefore, the first opening 221 needs to reserve sufficient travel space in the circumferential direction to meet the travel requirements of the second moving block 211's circumferential movement, and also to ensure that the second moving block 211 does not interfere with the sidewall of the first opening 221 during its entire circumferential movement. Of course, the sidewall of the first opening 221 can also serve as a stop for the second moving block 211, to stop and buffer the movement of the second moving block 211.

[0078] To support the smooth movement of the rotating carrier 21 in the aperture assembly 20, in some embodiments, the aperture assembly 20 further includes a rotating support 25, which is disposed between the rotating carrier 21 and the fixed bracket 22. Specifically, the bottom of the rotating carrier 21 and the fixed bracket 22 are respectively provided with circumferentially extending arc-shaped grooves, and the rotating support 25 is disposed within the space formed by the mutual engagement of the two arc-shaped grooves. The arc-shaped grooves extend circumferentially, and their arc-shaped trajectory coincides with the rotational trajectory of the rotating carrier 21, thereby providing circumferential guiding constraints for the rotating support 25, ensuring that the rotating carrier 21 always moves along a predetermined arc trajectory during rotation, avoiding rotational deviation or wobbling. The rotating support 25 supports the rotational movement of the rotating carrier 21 relative to the fixed bracket 22 and converts the sliding friction between the rotating carrier 21 and the fixed bracket 22 into rolling friction, significantly reducing frictional resistance during movement and improving the response speed of aperture adjustment. The rotating support 25 can be implemented as a ball bearing or a slider; this application does not limit its implementation.

[0079] In some embodiments, the number of rotating support portions 25 is multiple, and the multiple rotating support portions 25 are evenly distributed circumferentially between the rotating carrier 21 and the fixed bracket 22. For example, the aperture assembly 20 may include four rotating support portions 25 evenly distributed circumferentially, or it may include three rotating support portions 25 evenly distributed circumferentially, or it may include a greater number of rotating support portions 25 evenly distributed circumferentially; this application does not limit this.

[0080] Furthermore, to prevent axial separation between the rotating carrier 21 and the fixed bracket 22 under abnormal circumstances such as drops or impacts, which could lead to the detachment of the rotating support 25 and the failure of the aperture assembly 20, the aperture assembly 20 also includes a first magnetic attraction part 26 and a second magnetic attraction part 27. The first magnetic attraction part 26 and the second magnetic attraction part 27 are symmetrically arranged with respect to the optical axis, and the first magnetic attraction part 26 and the second magnetic attraction part 27 respectively generate magnetic attraction forces along the optical axis. This magnetic attraction force attracts the rotating carrier 21 towards the fixed bracket 22, thereby maintaining axial contact between the rotating carrier 21, the rotating support 25, and the fixed bracket 22, ensuring that the rotating support 25 is always clamped between the rotating carrier 21 and the fixed bracket 22 and constrained within the arc-shaped groove, thus preventing the rotational movement of the aperture assembly 20 from being damaged due to axial separation.

[0081] In some embodiments, such as Figure 10 As shown, the first magnetic attraction part 26 and the second magnetic attraction part 27 are implemented as two sub-magnetic attraction structures. The first magnetic attraction part 26 includes a first sub-magnetic attraction structure 261 and a second sub-magnetic attraction structure 262, and the second magnetic attraction part 27 includes a third sub-magnetic attraction structure 271 and a fourth sub-magnetic attraction structure 272. The first sub-magnetic attraction structure 261 is fixed to the rotating carrier 21, and the second sub-magnetic attraction structure 262 is fixed to the fixed bracket 22; the third sub-magnetic attraction structure 271 is fixed to the rotating carrier 21, and the fourth sub-magnetic attraction structure 272 is fixed to the fixed bracket 22. The first sub-magnetic attraction structure 261 and the third sub-magnetic attraction structure 271 are symmetrically arranged with respect to the optical axis O, and the second sub-magnetic attraction structure 262 and the fourth sub-magnetic attraction structure 272 are also symmetrically arranged with respect to the optical axis O to generate a magnetic attraction force symmetrical about the optical axis O. The first magnetic attraction part 26 and the second magnetic attraction part 27 are symmetrically arranged. It can be understood that the symmetrically distributed magnetic attraction forces ensure that the rotating carrier 21 is uniformly stressed in the axial direction, avoiding tilting or eccentric compression of the rotating carrier 21 caused by excessive magnetic attraction forces on one side. This ensures that the gap between the rotating carrier 21 and the fixed bracket 22 is uniform and the force on the rotating support 25 is balanced. The rotating carrier 21 will not tilt due to uneven axial compression forces during rotation, which is beneficial to maintaining the stability and reliability of the rotational motion.

[0082] In some embodiments, such as Figure 11 and Figure 12 As shown, the aperture assembly 20 includes at least three aperture blades 23 arranged in a ring and surrounding the optical axis O. Adjacent aperture blades 23 overlap to form a through-hole for light to pass through between the at least three aperture blades 23.

[0083] In some embodiments, one of the at least three aperture blades 23 is located above or below the preceding (counterclockwise) aperture blade 23. Specifically, in a specific example of this application, one of the at least three aperture blades 23 is located above the preceding and following aperture blades 23, or, in other words, one of the at least three aperture blades 23 is located below the preceding and following aperture blades 23, that is, the at least three aperture blades 23 are alternately arranged at different heights along the same direction. In other embodiments, one of the at least three aperture blades 23 is located above the preceding aperture blade 23 and below the following aperture blade 23. In other embodiments, one of the at least three aperture blades 23 is located below the preceding aperture blade 23 and above the following aperture blade 23, that is, the at least three aperture blades 23 may be overlapped along the same direction.

[0084] In some embodiments, the number of aperture blades 23 is six, with three aperture blades 23 arranged as one group in the upper layer and three aperture blades 23 arranged as another group in the lower layer. The aperture blades 23 in the upper layer and the aperture blades 23 in the lower layer are alternately arranged, that is, the aperture blade 23 preceding and following the upper layer aperture blade 23 is the lower layer aperture blade 23. In this way, because the upper layer aperture blades 23 and the lower layer aperture blades 23 are alternately distributed, the overlapping edges of adjacent aperture blades 23 overlap each other in the radial direction. When the aperture blades 23 are rotated open, the overlapping edges of each aperture blade 23 can be smoothly transitioned, making the outline of the blade aperture approach a circle, avoiding stray light leakage from the corner gaps of the polygonal opening, and improving the shape accuracy and optical shielding effect of the aperture aperture 201.

[0085] The aperture blade 23 includes an aperture blade body 231 and an aperture blade connecting end 232. The aperture blade body 231 is movably connected to a fixed bracket 22 via the aperture blade connecting end 232. The aperture blade body 231 is also movably connected to a rotating carrier 21, which is movably positioned above the fixed bracket 22. The aperture blade body 231 has a blade track, allowing the aperture blades 23 to rotate along the blade track under magnetic attraction. This allows at least three aperture blades 23 to rotate relative to each other, adjusting the aperture diameter 201. The aperture blade connecting end 232 has a positioning hole through which the aperture blades 23 are movably mounted on the fixed bracket 22. Driven by magnetic attraction, the rotating carrier 21 rotates relative to the fixed bracket 22 around the optical axis O, thereby rotating the aperture blades 23 above it and changing the aperture diameter 201 of the aperture blades 23.

[0086] When the aperture 201 switches from a large aperture state to a small aperture state, the aperture blade bodies 231 of at least three aperture blades 23 rotate and move towards the center of the aperture 201, making the aperture 201 smaller; when the aperture 201 switches from a small aperture state to a large aperture state, the aperture blade bodies 231 of at least three aperture blades 23 rotate and move away from the center of the aperture 201, making the aperture 201 larger.

[0087] In some embodiments, the aperture assembly 20 further includes a light-blocking plate disposed below the aperture blades 23 to support the aperture blades 23 and prevent the aperture blades 23 from drooping and affecting the performance of the aperture assembly 20.

[0088] In some embodiments, such as Figure 2 As shown, a conductive substrate 18 is also provided on the outer side wall of the base 12, and the focusing coil 14 is disposed on the conductive substrate 18 so that the driving current is conducted to the focusing coil 14 through the conductive substrate 18, and the electrical signal of the focusing coil 14 is conducted to the external control circuit.

[0089] In some embodiments, a position sensing element 19 is further disposed on the conductive substrate 18. The position sensing element 19 and the focusing magnet 13 are disposed opposite each other in a direction perpendicular to the optical axis O to sense the position of the focusing magnet 13 relative to the base 12, thereby obtaining displacement information of the focusing carrier 11 along the optical axis. In other embodiments, a position sensing magnet may be disposed independently, such that the position sensing element 19 and the position sensing magnet are disposed opposite each other in a direction perpendicular to the optical axis O to sense the position of the position sensing magnet relative to the base 12, thereby obtaining displacement information of the focusing carrier 11 along the optical axis.

[0090] As previously mentioned, the aperture assembly 20 and lens assembly 10 adopt an integrated structure. The change in aperture diameter 201 is achieved by the axial displacement of the focusing carrier 11 via a ramp drive. The size of aperture diameter 201 has a certain mapping relationship with the axial position of the focusing carrier 11. Therefore, the precise control of aperture diameter 201 essentially depends on the precise sensing and control of the axial displacement of the focusing carrier 11. The position sensing element 19 senses the real-time position of the focusing magnet 13 and feeds back the actual displacement of the focusing carrier 11 to the external control circuit. The external control circuit adjusts the driving current of the focusing coil 14 accordingly to achieve closed-loop precise control of the displacement of the focusing carrier 11. The precise control of the displacement of the focusing carrier 11 is converted into precise control of aperture diameter 201 via ramp drive. In other words, with the aperture assembly 20 and lens assembly 10 adopting an integrated structure, the position sensing element 19 not only serves the positioning accuracy of the optical focusing function but also indirectly determines the accuracy of aperture adjustment.

[0091] It should be understood that in other embodiments, an independent position sensing element may also be configured for the aperture assembly 20 to sense the rotational displacement of the aperture assembly 20 separately, thereby improving the accuracy of aperture adjustment.

[0092] In some embodiments, the lens assembly 10 further includes a focusing support 16, wherein the focusing support 16 is disposed between the focusing carrier 11 and the base 12, for supporting the focusing carrier 11 to move along the optical axis. Specifically, the focusing support 16 may be implemented as a guide rod, a ball bearing, or a slider, so that the focusing carrier 11 can reciprocate smoothly along the optical axis O.

[0093] The focusing support portion 16 may include two sets, with each set disposed on one side of the focusing magnet. When the focusing support portion 16 is implemented as a ball bearing, it can be configured with balls of the same size or balls of different sizes. For example, one set of focusing support portions 16 may include at least one larger ball bearing, and the other set may include at least two larger balls bearings; this application does not impose any limitations on this.

[0094] In some embodiments, the lens assembly 10 further includes a focusing magnetic suction part 17, which is disposed opposite to the focusing magnet 13 in a direction perpendicular to the optical axis. The focusing magnetic suction part 17 and the focusing magnet 13 generate a magnetic attraction force to clamp the focusing support part 16 between the focusing carrier 11 and the base 12, ensuring that the focusing carrier 11 is always stably guided and supported by the focusing support part 16 when moving along the optical axis, avoiding the focusing carrier 11 from deflecting or detaching during the movement, and maintaining the stability and reliability of the focusing movement.

[0095] In some embodiments, the lens assembly 10 further includes a housing 30, which is fixedly connected to the base 12 to form a mounting cavity between the housing 30 and the base 12. The components of the lens assembly 10 and the aperture assembly 20 can be disposed in the mounting cavity, which not only protects the components but also prevents dust and dirt from entering.

[0096] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A camera module, characterized in that, include: Lens assembly, defining an optical axis; The lens assembly includes a focusing carrier, a base, and a first magnetic element, wherein the focusing carrier is movably disposed within the base, and the first magnetic element is disposed on the focusing carrier. An aperture assembly is disposed on the object side of the lens assembly. The aperture assembly includes aperture blades, a rotating carrier, a fixed bracket, and a second magnetic element. The aperture blades are movably connected to the rotating carrier and the fixed bracket. The fixed bracket is fixedly connected to the base. The rotating carrier is movably disposed on the fixed bracket. The second magnetic element is disposed on the rotating carrier. The first magnetic element and the second magnetic element generate a magnetic attraction force to keep the focusing carrier in contact with the rotating carrier, thereby converting the translational motion of the focusing carrier along the optical axis into the rotational motion of the rotating carrier around the optical axis, thus driving the aperture blades to rotate.

2. The camera module according to claim 1, characterized in that, The first magnetic element is inclined and includes two opposite magnetic poles. The direction of the magnetic poles of the first magnetic element intersects the direction of the optical axis.

3. The camera module according to claim 2, characterized in that, The first magnetic element has only one magnetic pole facing the second magnetic element.

4. The camera module according to claim 3, characterized in that, The second magnetic element is vertically arranged and is implemented as a magnet. The second magnetic element includes two opposite magnetic poles arranged in a direction perpendicular to the optical axis, wherein the magnetic pole direction of the first magnetic element intersects the magnetic pole direction of the second magnetic element.

5. The camera module according to claim 1, characterized in that, The rotating carrier and the focusing carrier are spaced apart along the optical axis. The focusing carrier includes a focusing carrier body and a first moving block. The first moving block is disposed on the top of the focusing carrier body and extends along the optical axis. The rotating carrier includes a second moving block, which extends radially from the side of the rotating carrier.

6. The camera module according to claim 5, characterized in that, The first magnetic element is disposed on the first moving block, and the second magnetic element is disposed on the second moving block. The magnetic attraction between the first magnetic element and the second magnetic element can keep the first moving block and the second moving block in contact.

7. The camera module according to claim 6, characterized in that, The first moving block has an inclined surface, the inclined direction of which is the same as the inclined direction of the first magnetic element, and both the inclined surface of the first magnetic element and the inclined surface face the second moving block.

8. The camera module according to claim 7, characterized in that, The fixed bracket has a first opening on its side, and the second moving block is disposed in the first opening. The first moving block extends into the first opening as the focusing carrier moves axially, and the second moving block and the first moving block maintain frictional contact within the first opening.

9. The camera module according to claim 8, characterized in that, The circumferential dimension of the first opening is greater than the sum of the circumferential dimensions of the first moving block and the second moving block.

10. The camera module according to claim 7, characterized in that, When the focusing carrier drives the first moving block to move along the optical axis, the inclined surface pushes the second moving block that abuts against it, causing the second moving block to move along the inclined surface while generating a circumferential displacement component, thereby driving the rotating carrier to rotate around the optical axis.

11. The camera module according to claim 10, characterized in that, As the first magnetic element moves along the optical axis between the image-side limit position and the object-side limit position, the closest distance between the corner of the second magnetic element near the first magnetic element and the surface of the first magnetic element facing the second magnetic element remains stable within the threshold range.

12. The camera module according to claim 1, characterized in that, The lens assembly further includes a focusing coil and a focusing magnet. The focusing magnet is disposed on the focusing carrier, and the focusing coil is disposed on the base. The focusing magnet and the focusing coil are disposed opposite each other in a direction perpendicular to the optical axis. The first magnetic element is disposed at intervals on the object side of the focusing magnet along the optical axis.

13. The camera module according to claim 12, characterized in that, The first magnetic element is inclined relative to the focusing magnet, wherein the focusing magnet includes two opposite magnetic poles arranged along the optical axis, the first magnetic element includes two opposite magnetic poles arranged along a direction intersecting the optical axis, and the magnetic pole direction of the focusing magnet intersects the magnetic pole direction of the first magnetic element.

14. The camera module according to claim 1, characterized in that, The aperture assembly further includes a first magnetic attraction part and a second magnetic attraction part, which are symmetrically arranged with respect to the optical axis. The first magnetic attraction part and the second magnetic attraction part respectively generate magnetic attraction forces along the optical axis direction.

15. The camera module according to claim 14, characterized in that, The first magnetic attraction part includes a first sub-magnetic attraction structure and a second sub-magnetic attraction structure. The second magnetic attraction part includes a third sub-magnetic attraction structure and a fourth sub-magnetic attraction structure. The first sub-magnetic attraction structure and the third sub-magnetic attraction structure are symmetrically arranged with respect to the optical axis. The second sub-magnetic attraction structure and the fourth sub-magnetic attraction structure are also symmetrically arranged with respect to the optical axis to generate a magnetic attraction force symmetrical about the optical axis.

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