Rotating mechanism and periscope camera module thereof

By adjusting the rotation mechanism of the light-directing element in the periscope camera module and using the drive of coils and magnets in the x and z axes, the problems of module height and image stabilization caused by telephoto lenses were solved, achieving miniaturization and efficient image stabilization, and improving image quality.

CN115696003BActive Publication Date: 2026-02-17NINGBO SUNNY OPOTECH CO LTD
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Patent Information

Application Number
CN202110842337.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-26
Publication Date
2026-02-17
Estimated Expiration
2041-07-26

AI Technical Summary

Technical Problem

Existing periscope camera modules, when configured with telephoto lenses, are difficult to miniaturize and achieve image stabilization, resulting in protruding lenses that affect the appearance of the device and are prone to damage, and it is also difficult to incorporate a suitable image stabilization motor.

Method used

By adjusting the rotation of the optical steering element in two degrees of freedom, and using the coil and magnet of the drive device set in the x and z axes, image stabilization of the optical lens in the x and y axes is achieved, reducing the height of the camera module and adopting a compact rotation mechanism design.

Benefits of technology

Optical image stabilization was achieved for the periscope camera module, reducing the height and size of the camera module, improving image quality, and facilitating installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a rotating mechanism and a periscopic camera module thereof, which are used for driving a light turning mechanism. The rotating mechanism comprises a movable carrier, a fixed base and a driving device. The movable carrier carries the light turning mechanism. The fixed base and the movable carrier are oppositely arranged along a first rotating shaft direction. The driving device comprises at least one group of coils and at least one group of magnets. The coils are arranged on the circumferential side of the fixed base and are parallel to the first rotating shaft. The magnets are fixed to the movable carrier and are oppositely arranged with the coils. When the coils are electrified, the magnets can drive the light turning mechanism to rotate around the first rotating shaft and / or the second rotating shaft. Therefore, the angle of the light turning element relative to the optical lens is adjusted to realize optical anti-shake of the periscopic camera module, so that the imaging quality of the periscopic camera module is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of camera, in particular, a rotating mechanism and a periscopic camera module. BACKGROUND

[0002] Recently, due to the development of mobile communication technology, the camera module of the portable terminal such as smart phone is miniaturized and lightened, so that at least one camera module is configured on the portable terminal body. The design requirements of the camera module are increasing, and the user not only requires the camera module configured on the mobile terminal to have high capacity and high performance, but also requires the development of the camera module to reach the standard of digital single-lens reflex (DSLR). The development of the camera module needs to meet the development trend of miniaturization and lightening while maintaining high performance and high capacity.

[0003] The periscopic camera module reflects the light beam incident from the vertical direction to the front end of the camera module by arranging a reflecting prism at the front end of the traditional prism, so that the light beam can be turned from the vertical direction to the horizontal direction perpendicular to the vertical direction, and then reach the photosensitive chip through the lens assembly and the color filter, thereby ensuring that the long focal length camera module can reduce the height of the long focal length camera module while meeting the long focal length shooting effect. The camera module can be installed in the electronic device in a horizontal manner. Therefore, the periscopic camera module can greatly realize the requirements of terminal device miniaturization and optical zoom, and can change the long lens structure by transforming the angle of the incident light and reducing the module height.

[0004] The camera module realizes the optical auto focus function (hereinafter referred to as AF function, Auto Focus, auto focus) and the optical image stabilization function (hereinafter referred to as OIS function: Optical Image Stabilization) in the shooting process through the motor. The AF function refers to the function of adjusting the focus by making the lens system linearly move in the optical axis direction to focus on the object, so as to produce a clear image at the image sensor (CMOS, CCD, etc.) located behind the lens. The OIS function refers to the technology of compensating image blur by motor anti-vibration control when the lens is shaken due to shaking. The image sensor converts the light incident through the lens system into an image signal.

[0005] Meanwhile, the shooting angle of the camera module is related to the focal length of the optical lens. The smaller the focal length of the optical lens is, the larger the shooting angle is, and at this time, the shooting ability of the camera module for the near scene is stronger. Correspondingly, the larger the focal length of the optical lens is, the smaller the shooting angle is, and at this time, the shooting ability of the camera module for the far scene is stronger. Because the long-focus lens has a large focal length, the distance that can be shot is longer, so that the long-focus lens can shoot at a very long distance. Therefore, the size of the long-focus lens is usually large, and the large long-focus lens will cause the height size of the camera module to be large. When the camera module with the long-focus lens is arranged on the electronic device, the end surface of the long-focus lens will protrude from the surface of the electronic device, which not only affects the appearance of the electronic device, but also causes the long-focus lens to be easily worn or damaged due to contact with other objects when the electronic device is used. Furthermore, it is difficult to load a suitable motor on the long-focus lens, which may cause the overall size to be too large. SUMMARY

[0006] An object of the present application is to provide a rotation mechanism and a periscopic camera module, which adjusts the angle of the light turning element relative to the optical lens to achieve optical image stabilization of the periscopic camera module, thereby improving the imaging quality of the periscopic camera module.

[0007] Another object of the present application is to provide a rotation mechanism and a periscopic camera module, which adjusts the rotation of the light turning element in two degrees of freedom to achieve optical image stabilization of the optical lens in the direction orthogonal to the optical axis, thereby reducing the height of the camera module.

[0008] Another object of the present application is to provide a rotation mechanism and a periscopic camera module, which rotates the light turning element along the x-axis by the first driving assembly of the driving device to achieve optical image stabilization of the optical lens in the y-axis direction, and rotates the light turning element along the y-axis by the second driving assembly of the driving device to achieve optical image stabilization of the optical lens in the x-axis direction.

[0009] Another object of the present application is to provide a rotation mechanism and a periscopic camera module, which respectively sets the coil and the magnet of the driving device in the x-axis direction and the z-axis direction, effectively utilizes the space in the x-axis and z-axis directions, avoids occupying the space in the y-axis direction, and is beneficial to reduce the height requirement of the anti-shake motor of the camera module and reduce the height of the camera module.

[0010] Another object of the present application is to provide a rotation mechanism and a periscopic camera module, which has a more compact structure, reduces the size of the camera module carrying the anti-shake motor, and is easy to assemble.

[0011] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a rotating mechanism for driving a light-directing mechanism, comprising a movable carrier, a fixed base, and a driving device. The movable carrier carries the light-directing mechanism, and the fixed base carries the movable carrier along a first rotation axis. The driving device includes at least one set of coils and at least one set of magnets. The coils are disposed on the periphery of the fixed base and parallel to the first rotation axis. The magnets are fixed to the movable carrier and disposed opposite to the coils. When the coils are energized, they drive the magnets to rotate the light-directing mechanism around the first rotation axis and / or around a second rotation axis. The first rotation axis and the second rotation axis are respectively orthogonal to the optical axis.

[0012] As a preferred embodiment, the drive device further includes at least one support mechanism and at least one guide groove, the at least one guide groove being formed between the movable carrier and the fixed base, the support mechanism being movably engaged with the guide groove, thereby allowing the movable carrier to rotate along the first rotation axis or the second rotation axis.

[0013] As a preferred embodiment, the movable carrier includes a first carrier and a second carrier, the first carrier and the second carrier being arranged opposite each other along the first rotation axis, the at least one set of magnets being fixed to the periphery of the second carrier and arranged opposite to the at least one set of coils, and the at least one guide groove and the at least one support mechanism being disposed between the first carrier and the second carrier.

[0014] As a preferred embodiment, the at least one set of coils includes at least one first coil and at least one second coil, and the at least one magnet includes at least one first magnet and at least one second magnet. The first magnet is fixed to both sides of the first carrier along the second rotation axis. The first coil and the first magnet are arranged opposite to each other. The first coil and the first magnet form a first magnetic field circuit, thereby driving the first carrier to rotate along the first rotation axis. The second magnet is fixed to the periphery of the second carrier along the optical axis. The second coil and the second magnet are arranged opposite to each other. The second coil and the second magnet form a second magnetic field circuit, thereby driving the second carrier to rotate along the second rotation axis.

[0015] As a preferred embodiment, the first carrier is stacked between the second carrier and the fixed base along a first rotation axis, and the first carrier forms opposing surfaces with the second carrier and the fixed base respectively. The at least one guide groove and the at least one support mechanism are disposed on the opposing surfaces to support the rotation of the first carrier relative to the second carrier and / or the fixed base.

[0016] As a preferred embodiment, the first coil and the second coil are respectively attached to the periphery of the fixed base, the first coil and the first magnet are arranged radially relative to each other, and the second coil and the second magnet are arranged axially relative to each other. The first coil and the first magnet are symmetrically arranged on the left and right sides of the light-directing mechanism, and the second coil and the second magnet are arranged on the rear side of the light-directing mechanism.

[0017] As a preferred embodiment, the first magnet has an arc-shaped structure, with its N pole and S pole arranged adjacent to each other along the Z-axis, and the N pole and S pole of the first magnet on the left and right sides being in opposite positions. The second magnet also has an arc-shaped structure, with its N pole and S pole arranged adjacent to each other along the Y-axis.

[0018] As a preferred embodiment, the spacing between each of the magnets and the opposite coil is 0.05~0.5mm, more preferably, the spacing is 0.1~0.3mm, and more preferably, the spacing is 0.1mm.

[0019] As a preferred embodiment, there are two first magnets, which are symmetrically arranged on the left and right sides of the first carrier, and one second magnet, which is fixed to the rear side of the second carrier.

[0020] As a preferred embodiment, the guide groove includes a first guide groove and a second guide groove, and the support mechanism includes a first support mechanism and a second support mechanism. The first guide groove is symmetrically opened on the opposite surfaces of the fixed base and the first carrier, and the second guide groove is respectively opened on the opposite surfaces of the first carrier and the second carrier. The first support mechanism is accommodated in the first guide groove, and the second support mechanism is accommodated in the second guide groove.

[0021] As a preferred embodiment, the first guide groove has an arc-shaped structure and is parallel to the XZ plane, the first support mechanism is a ball bearing, and each first guide groove is provided with two first balls bearing, which are spaced apart.

[0022] As a preferred embodiment, the second guide groove has an arc-shaped structure and is parallel to the Y-Z plane, the second support mechanism is a ball bearing, and each second guide groove is provided with two second balls bearings, which are distributed at intervals.

[0023] As a preferred embodiment, the curvature of the first guide groove is 45° to 55°, and the curvature of the second guide groove is 13° to 18°. More preferably, the curvature of the first guide groove is 50°, and the curvature of the second guide groove is 15°.

[0024] As a preferred embodiment, the first coil and the first magnet drive the light-directing mechanism to yaw about the first rotation axis at an angle of -21° to +21°, and the second coil and the second magnet drive the light-directing mechanism to pitch about the second rotation axis at an angle of -8° to +3°.

[0025] As a preferred embodiment, the second support mechanism is a guide rod, and the second guide groove is formed on both sides of the second carrier. The second support mechanism extends from the side of the first carrier to the second guide groove, so that the second carrier rotates around the second support mechanism.

[0026] As a preferred embodiment, the first rotating axis is orthogonal to the plane where the first guide groove is located, each of the first guide grooves is adjacent to each of the first magnets on the periphery of the first carrier, the first guide groove is provided with a first upper rail and a first lower rail, the first upper rail and the second lower rail are arranged opposite to each other, and the first support mechanism is rotatably accommodated between the first upper rail and the first lower rail.

[0027] As a preferred embodiment, the second rotating shaft is orthogonal to the plane where the second guide groove is located. The second guide groove is provided with a second upper rail and a second lower rail. The second upper rail and the second lower rail are arranged opposite to each other. The second support mechanism is rotatably accommodated between the second upper rail and the second lower rail.

[0028] As a preferred embodiment, the driving device further includes a first sensing mechanism and a second sensing mechanism. The first sensing mechanism is installed in the first coil and is positioned opposite to the first magnet to detect the position of the first magnet. The second sensing mechanism is installed in the second coil and is positioned opposite to the second magnet to detect the position of the second magnet.

[0029] Preferably, the second rotating axis passes through the center of the first sensing mechanism.

[0030] As a preferred embodiment, the fixed base includes a circuit board and a base. The first upper track of the first guide groove is symmetrically opened on the outer side of the base. The first upper track is adjacent to the first magnet. The circuit board covers the side wall of the base. The first coil and the second coil are sequentially attached to the circuit board. The side wall of the base is provided with multiple openings, and the first coil and the second coil are accommodated in the openings.

[0031] As a preferred embodiment, the first carrier includes a pair of first moving loads, a base, and a pair of guides. The first moving loads are located on the outer side of the base, and the first magnets are fixed to each of the first moving loads. The support extends obliquely upward from the middle of the base, and the first lower track of the first guide groove is formed on the lower surface of the base. The second upper track of the second guide groove is formed on the support.

[0032] As a preferred embodiment, the second carrier includes a second moving load portion and a support surface, the inclined surface of the light steering mechanism is attached to the support surface, the second moving load portion is located on the rear side of the second carrier, the second magnet is fixed to the second moving load portion, and the second lower track of the second guide groove is opened on the back side of the second carrier.

[0033] As a preferred embodiment, the circuit board is a flexible circuit board, with the first coil attached to both sides of the circuit board and the second coil attached to the middle of the circuit board.

[0034] A periscope camera module includes a rotation mechanism, a light-directing mechanism, a lens assembly, and a photosensitive assembly as described above. The lens assembly is located in the photosensitive path of the photosensitive assembly. The light-directing mechanism is used to change the direction of light rays and is adjustablely mounted on the rotation mechanism. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a periscope camera module according to a preferred embodiment of the present application.

[0036] Figure 2 This is a perspective structural diagram of the light steering assembly according to the above preferred embodiment of this application.

[0037] Figure 3 This is an exploded view of the light steering assembly according to the above-described preferred embodiment of this application.

[0038] Figure 4 This is an exploded view of the rotating mechanism according to the above-described preferred embodiment of this application.

[0039] Figure 5 This is a front view of the rotating mechanism according to the above-described preferred embodiment of this application.

[0040] Figure 6 It is based on the provisions of this application Figure 5 A cross-sectional view along line AA in the middle.

[0041] Figure 7 This is a three-dimensional structural diagram (front view) of the first carrier according to the above preferred embodiment of this application.

[0042] Figure 8This is a three-dimensional structural diagram (reverse side) of the first carrier according to the above preferred embodiment of this application.

[0043] Figure 9 This is a perspective view (reverse side) of the steering base according to the above preferred embodiment of this application.

[0044] Figure 10 This is an exploded schematic diagram of the active carrier according to the above preferred embodiment of this application.

[0045] Figure 11 This is a three-dimensional structural diagram of the second carrier according to the above-described preferred embodiment of this application.

[0046] Figure 12 This is an exploded view of a light steering assembly according to another preferred embodiment of this application.

[0047] Figure 13 This is an exploded view of a rotating mechanism according to another preferred embodiment of this application.

[0048] Figure 14 This is a perspective structural diagram of the rotating mechanism according to another preferred embodiment of this application.

[0049] Figure 15 This is a top view of the drive device and the moving carrier according to another preferred embodiment of this application.

[0050] Figure 16 This is a three-dimensional structural diagram (reverse side) of the first carrier according to another preferred embodiment of this application.

[0051] In the diagram: 1. Light steering assembly; 10. Light steering mechanism; 101. First light path; 102. Second light path; 11. Right-angled surface; 12. Inclined surface; 2. Rotation mechanism; 20. Drive device; 201. First rotating shaft; 202. Second rotating shaft; 203. Guide rod; 204. Guide rod groove; 211. First coil; 212. First magnet; 213. First support mechanism; 214. First guide groove; 221. Second coil; 222. Second magnet; 223. Second support mechanism; 224. Second guide groove; 30, movable carrier; 31, first carrier; 311, first moving part; 312, base; 313, guide part; 314, middle part; 315, side part; 316, first lower rail; 317, second upper rail; 40, fixed base; 41, circuit board; 42, base; 421, opening; 422, first upper rail; 50, second carrier; 51, second moving part; 52, second lower rail; 53, support surface; 60, lens assembly; 70, photosensitive assembly. Detailed Implementation

[0052] The present invention will now be further described in conjunction with 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.

[0053] In the description of this invention, it should be noted that 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. These terms are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0054] 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.

[0055] 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.

[0056] It should be noted that, as used in this application, the terms “basically,” “approximately,” and similar terms are used to indicate approximation rather than degree, and are intended to describe inherent deviations in measured or calculated values ​​that would be recognized by a person skilled in the art.

[0057] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, a contact connection, or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] like Figure 1 and Figure 3The diagram shows a periscope camera module, comprising a lens assembly 60, a photosensitive assembly 70, and a light-directing assembly 1. The lens assembly 60 is located in the photosensitive path of the photosensitive assembly 70. The light-directing assembly 1 is used to change the direction of light rays. The light-directing assembly 1 includes a light-directing mechanism 10 and a rotation mechanism 2. The light-directing mechanism 10 is adjustablely mounted on the rotation mechanism 2. The light-directing mechanism 10 is used to redirect light rays by 90° before they pass through the lens assembly 60 and are received by the photosensitive assembly 70 for imaging. The rotation mechanism 2 drives the light-directing mechanism 10 to rotate around at least one rotation axis to compensate for the image stabilization displacement of the optical axis orthogonal plane of the lens assembly 60. Figure 1 and Figure 2 The orthogonal coordinate system (X, Y, Z) shown applies to all figures. The Z-axis is the optical axis direction of the lens assembly 60, which is the front-to-back direction. The X-axis and Y-axis, which are orthogonal to the Z-axis, are taken as the orthogonal directions of the optical axis. The X-axis is the left-to-right direction, and the Y-axis is the up-to-down direction. The plane orthogonal to the optical axis is the coplanar plane between the X-axis and the Y-axis. It should be understood that this coordinate system is for illustrative purposes only and should not be construed as limiting.

[0059] In some embodiments, the light-directing mechanism 10 enables a 90° directional change in light. The light-directing mechanism 10 includes two right-angled surfaces 11 and a reflecting surface 12 (sloping surface 12). Each right-angled surface 11 forms a 45° angle with the reflecting surface 12. The reflecting surface 12 forms a first light path 101 and a second light path 102 that are perpendicular to each other. The lens assembly 60 and the photosensitive assembly 70 are respectively disposed in the second light path 102. Light enters from the first light path 101, is reflected by the reflecting surface 12, and then enters the second light path 102. For example, but not limited to, the light-directing mechanism 10 can be implemented as a plane mirror or a prism. In particular, in embodiments of the present invention, the light-directing mechanism 10 is implemented as a prism, specifically a total internal reflection prism.

[0060] According to a first aspect of this application, a rotating mechanism 2 is provided for driving a light-directing mechanism 10 to rotate about a first rotation axis 201 (Y-axis) and / or a second rotation axis 202 (X-axis). The rotating mechanism 2 includes a driving device 20, a movable carrier 30, and a fixed base 40. The movable carrier 30 carries the light-directing mechanism 10. The fixed base 40 and the movable carrier 30 are spaced apart and arranged opposite each other along the first rotation axis 201. The driving device 20 includes at least one set of coils and at least one set of magnets. A coil is disposed around the periphery of the fixed base 40 and parallel to the first rotation axis 201. The magnet is fixed to the movable carrier 30 and faces the coil. When the coil is energized, it drives the magnet to rotate around the first rotation axis 201 and / or around the second rotation axis 202. This, in turn, drives the movable carrier 30 to rotate around the first rotation axis 201 to achieve X-axis image stabilization, and / or around the second rotation axis 202 to achieve Y-axis image stabilization, thereby achieving image stabilization correction of the lens assembly 60 along its optical axis orthogonal plane. In this embodiment, "periphery" refers to a side parallel to the Y-axis and not intersecting it. By placing both the coil and the magnet around the periphery, the space in the X-axis and Z-axis directions of the camera module is effectively utilized without increasing the height in the Y-axis direction, which helps to reduce the height of the camera module and facilitates installation.

[0061] In some embodiments, the driving device 20 further includes at least one support mechanism and at least one guide groove. The at least one guide groove is formed between the movable carrier 30 and the fixed base 40. The support mechanism is movably engaged with the guide groove, allowing the movable carrier 30 to rotate along the first rotation axis 201 or the second rotation axis 202. In other words, the guide groove has the first rotation axis 201 and / or the second rotation axis 202 as its central axis, and the guide groove guides the rotation direction of the light-directing mechanism 10. When the coil is energized, it drives the magnet to rotate the light-directing mechanism 10 around the first rotation axis 201 and / or around the second rotation axis 202.

[0062] In some embodiments, the movable carrier 30 includes a first carrier 31 and a second carrier 50, the first carrier 31 and the second carrier 50 being arranged opposite each other along the first rotation axis 201, the at least one set of magnets being fixed to the periphery of the second carrier 50 and arranged opposite to the at least one set of coils, the at least one guide groove and the at least one support mechanism being disposed between the first carrier 31 and the second carrier 50, when the coil is energized, the second carrier 50 carrying the magnets is driven to rotate along the second rotation axis 202, thereby the second carrier 50 rotating relative to the first carrier 31 around the X-axis to achieve Y-axis anti-shake.

[0063] In some embodiments, the at least one set of coils includes at least one first coil 211 and at least one second coil 221, and the at least one magnet includes at least one first magnet 212 and at least one second magnet 222. The first magnet 212 is fixed to both sides of the first carrier 31 along the second rotation axis 202, and the first coil 211 is fixed to the periphery of the fixed base 40 and spaced apart from the first magnet 212. The first coil 211 and the first magnet 212 form a first magnetic field circuit, thereby driving the first carrier 31 to rotate along the first rotation axis 201. The first magnet 212 drives the movable carrier 30 to oscillate around the Y-axis to achieve X-axis anti-shake correction. The second magnet 222 is fixed to the periphery of the second carrier 50 along the optical axis. The second coil 221 is fixed to the periphery of the fixed base 40 and is spaced apart from the second magnet 222. The second coil 221 and the second magnet 222 form a second magnetic field circuit, which drives the second carrier 50 to rotate along the second rotation axis 202. Thus, the second magnet 222 drives the movable carrier 30 to pitch around the X-axis to achieve Y-axis anti-shake correction.

[0064] That is, the first carrier 31 is stacked between the second carrier 50 and the fixed base 40 along the Y-axis, and the first carrier 31 forms opposing surfaces with the second carrier 50 and the fixed base 40 respectively. The at least one guide groove and the at least one support mechanism are disposed on the opposing surfaces to support the rotation of the first carrier 31 relative to the second carrier 50 and / or the fixed base 40. The first coil 211 and the second coil 221 are respectively attached to the periphery of the fixed base 40. The first coil 211 and the first magnet 212 are arranged radially relative to each other, and the second coil 221 and the second magnet 222 are arranged axially relative to each other. By symmetrically arranging the first coil 211 and the first magnet 212 on the left and right sides of the light-directing mechanism 10, and by arranging the second coil 221 and the second magnet 222 on the rear side of the light-directing mechanism 10, the space occupied by the coils and the magnets on the bottom surface of the camera module along the Y-axis is reduced. The excess space on the Z-axis and X-axis around the periphery of the light-directing mechanism 10 is reasonably utilized, thereby effectively reducing the height of the periscope camera module. Since there is more available space in the X-axis and Z-axis directions, it is suitable to place larger magnets, which can provide greater driving force. This makes the periscope camera module suitable for use in electronic devices that pursue thinness and lightness. Moreover, the advantages of this periscope camera module structure are more obvious when the focal length of the lens assembly 60 is larger. In this context, "relative radial arrangement" means that the first coil 211 and the first magnet 212 are arranged opposite each other along the X-axis, "relative axial arrangement" means that the second coil 221 and the second magnet 222 are arranged opposite each other along the Z-axis, "rear side" refers to the opposite side of the light-emitting surface of the light-directing mechanism 10, i.e., the -Z-axis, and "left and right sides" refer to the +X-axis and -X-axis.

[0065] In some embodiments, the first magnet 212 has an arc-shaped structure, with the N and S poles of the first magnet 212 arranged adjacent to each other along the Z-axis, and the N and S poles of the first magnet 212 on the left and right sides being in opposite positions. When the first coil 211 is energized, the first magnetic field circuit is formed based on the interaction between the magnetic field generated by the first magnet 212 and the current in the first coil 211, generating a Lorentz force that drives the first carrier 31 with the first magnet 212 to rotate along the Y-axis, thereby driving the light steering mechanism 10 on the movable carrier 30 to rotate along the Y-axis, realizing the X-axis image stabilization correction of the camera module. The direction of the Lorentz force is orthogonal to the direction of the magnetic field (X-axis) and the direction of the current in the first coil 211 (Z-axis or Y-axis). Since the N and S poles of the first magnet 212 are arc-shaped along the Z-axis, when the first coil 211 is energized, the Lorentz force is converted into a torque that causes the first magnet 212 to rotate around the Y-axis.

[0066] In some embodiments, the second magnet 222 has an arc-shaped structure, and the N pole and S pole of the second magnet 222 are arranged adjacent to each other along the Y-axis. When the second coil 221 is energized, the interaction between the magnetic field generated by the second magnet 222 and the current in the second coil 221 forms the second magnetic field circuit, generating a Lorentz force. This force drives the second carrier 50 with the second magnet 222 to rotate along the X-axis, thereby driving the light steering mechanism 10 on the movable carrier 30 to rotate along the X-axis, realizing the Y-axis image stabilization correction of the camera module. The direction of the Lorentz force is orthogonal to the direction of the magnetic field (Z-axis) and the direction of the current in the second coil 221 (X-axis or Y-axis). Since the N pole and S pole of the first magnet 212 are arc-shaped along the Y-axis, when the first coil 211 is energized, the Lorentz force is converted into a torque that causes the first magnet 212 to rotate around the X-axis.

[0067] In some embodiments, the first magnet 212 and the second magnet 222 are tile-shaped magnets, and the first magnet 212 and the second magnet 222 are permanent magnets made of neodymium alloy or samarium cobalt alloy. To more precisely control the rotation amplitude, the arc size of the first magnet 212 is adapted to the arc shape formed by the rotation radius of the first carrier 31 around the Y-axis, and the arc size of the second magnet 222 is adapted to the arc shape formed by the rotation radius of the second carrier 50 around the X-axis.

[0068] In some embodiments, the number of first magnets 212 is two. The first magnets 212 are symmetrically arranged on the left and right sides of the first carrier 31, facing the first coil 211. A radial distance along the X-axis is formed between the first coil 211 and the first magnets 212, the radial distance being 0.05~0.5mm, preferably 0.1~0.3mm, and more preferably 0.1mm. This ensures that the first magnets 212 do not contact the first coil 211, avoiding interference and generating good magnetic induction.

[0069] In some embodiments, the number of the second magnet 222 is one. The second magnet 222 is fixed to the rear side of the second carrier 50 and is arranged opposite to the second coil 221. An axial distance along the Z-axis is formed between the second coil 221 and the second magnet 222. The axial distance is 0.05~0.5mm, preferably 0.1~0.3mm, and more preferably 0.1mm. This ensures that the second magnet 222 will not contact the second coil 221, avoiding interference and generating good magnetic induction.

[0070] In some embodiments, the guide grooves and the support mechanisms are two pairs. The support mechanisms can be ball bearings. At least one ball bearing is provided in each guide groove. The guide grooves include a first guide groove 214 and a second guide groove 224. The support mechanisms include a first support mechanism 213 and a second support mechanism 223. The first guide grooves 214 are symmetrically opened on the opposite surfaces of the fixed base 40 and the first carrier 31. The second guide grooves 224 are respectively opened on the opposite surfaces of the first carrier 31 and the second carrier 50. Each support mechanism is accommodated in each guide groove. The first support mechanism 213 is accommodated in the first guide groove 214, so that the first support mechanism 213 can rollably support the first carrier 31 to rotate around the Y-axis. The second support mechanism 223 is accommodated in the second guide groove 224, so that the second support mechanism 223 can rollably support the second carrier 50 to rotate around the X-axis. In other words, the first support mechanism 213 engages in the first guide groove 214, and the second support mechanism 223 engages in the second guide groove 224. The first guide groove 214 is centered on the first rotation axis 201, and the second guide groove 224 is centered on the second rotation axis 202, so that the light steering mechanism 10 can selectively rotate along the first guide groove 214 or the second guide groove 224. Therefore, through the arrangement of the first guide groove 214 and the first support mechanism 213 between the first carrier 31 and the fixed base 40, during X-axis optical image stabilization, the first support mechanism 213 always maintains dynamic support for the first carrier 31 as it rotates relative to the fixed base 40 around the Y-axis, ensuring the smooth yaw rotation of the first carrier 31 and guaranteeing the X-axis image stabilization compensation displacement accuracy. Simultaneously, through the arrangement of the second guide groove 224 and the second support mechanism 223 between the second carrier 50 and the first carrier 31, during Y-axis optical image stabilization, the second support mechanism 223 always maintains dynamic support for the second carrier 50 as it rotates relative to the first carrier 31 around the X-axis, ensuring the smooth pitch rotation of the second carrier 50 and guaranteeing the Y-axis image stabilization compensation displacement accuracy.

[0071] In some embodiments, the balls of the support mechanism may be partially or completely embedded in the guide groove, the support mechanism may not be completely fixed in the guide groove, the balls of the support mechanism may be partially inserted into the guide groove and move in a rolling manner, or the balls of the support mechanism may be fixed in the guide groove and move in a sliding manner in the guide groove.

[0072] In some embodiments, the first guide groove 214 has an arc-shaped structure and is parallel to the plane formed by the X-axis and Z-axis. The two first guide grooves 214 are arranged in a cocircular manner on the opposite surfaces of the fixed base 40 and the first carrier 31. The width (X-axis direction) of the first guide groove 214 is adapted to the first support mechanism 213. The length (Z-axis direction) of the first guide groove 214 can be extended along the Z-axis direction according to the requirements of the camera module to allow the first support mechanism 213 to roll or slide in the first guide groove 214, reduce friction, and make the first carrier 31 rotate more flexibly and accurately around the Y-axis. That is, the length of the first guide groove 214 along the Z-axis direction is greater than the length along the X-axis. Through the torque generated on the first carrier 31 by the first coil 211 and the first magnet 212 in the Y-axis direction, the first carrier 31 rotates along the first guide groove 214, while the movement of the first support mechanism 213 along the Y-axis direction is restricted.

[0073] In some embodiments, the second guide groove 224 has an arc-shaped structure and is parallel to the plane formed by the Y-axis and Z-axis. Two second guide grooves 224 are arranged parallel to each other on the opposite surfaces of the first carrier 31 and the second carrier 50. The width (X-axis direction) of the second guide groove 224 is adapted to the second support mechanism 223. The length (Z-axis direction) of the second guide groove 224 can be extended along the Z-axis direction according to the requirements of the camera module to allow the second support mechanism 223 to roll or slide in the second guide groove 224, reduce friction, and make the second carrier 50 rotate more flexibly and accurately around the X-axis. That is, the inclination height of the first guide groove 214 along the Z-axis and Y-axis plane is greater than its length along the X-axis. Through the torque generated on the second carrier 50 by the second coil 221 and the second magnet 222 in the X-axis direction, the second carrier 50 rotates along the second guide groove 224, while the movement of the second support mechanism 223 in the X-axis direction is restricted.

[0074] In some embodiments, each of the first guide grooves 214 contains two first balls spaced apart, and each of the second guide grooves 224 contains two second balls spaced apart. The width of the first guide groove 214 is adapted to the width of the first balls, and the width of the second guide groove 224 is adapted to the width of the second balls. The number of the first and second balls should not be construed as limiting; the number of first balls may be more or less than two, and the number of second balls may also be more or less than two. The first and second balls may be made of the same or different materials.

[0075] In some embodiments, the curvature of the first guide groove 214 is approximately 45° to 55°, such that the movable carrier 30 drives the light steering mechanism 10 to yaw about ±21° around the first rotation axis 201. Preferably, the curvature of the first guide groove 214 is approximately 50°, which meets the requirements for large-angle anti-shake correction on the X-axis.

[0076] In some embodiments, the curvature of the second guide groove 224 is approximately 13° to 18°, such that the movable carrier 30 drives the light steering mechanism 10 to pitch around the second rotation axis 202 at an angle of approximately -8° to +3°. Preferably, the curvature of the second guide groove 224 is approximately 15°, which meets the requirements for large-angle anti-shake correction on the Y-axis.

[0077] In some embodiments, the first guide grooves 214 are respectively recessed on the left and right sides of the fixed base 40 and the first carrier 31, respectively. The first support mechanism 213 is rotatably supported on the left and right sides of the first carrier 31 and the fixed base 40, thereby helping to maintain the stability of the first carrier 31. Each of the first guide grooves 214 is adjacent to each of the first magnets 212 on the periphery of the first carrier 31. The first guide grooves 214 are located on the outer side of the fixed base 40, making full use of the spare space on the outer side of the fixed base 40 and the first carrier 31, providing a larger space for the first guide grooves 214, so that the two first guide grooves 214 have a longer arc dimension along the Z-axis. When the first carrier 31 is guided around the Y-axis by the first guide grooves 214 and the first support mechanism 213, a larger yaw angle can be provided for the first carrier 31, thereby facilitating the realization of a larger angle of X-axis optical image stabilization, such as... Figure 11 As shown. In other words, the more the first guide groove 214 extends outward and is closer to the first magnet 212 on the periphery of the first carrier 31, the easier it is to drive the first carrier 31. The circle containing the two first guide grooves 214 is larger, and the curvature of the first guide groove 214 can also be longer, such as... Figure 15 As shown, the first guide groove 214 is located directly below the first magnet, and by increasing the extension space in the X-axis direction on the fixed base 40, the first guide groove 214 has a longer arc dimension in the Z-axis direction, which can provide a larger yaw angle for the first carrier 31, thereby facilitating the realization of a larger angle of X-axis optical image stabilization.

[0078] In some embodiments, the first rotation axis 201 is orthogonal to the plane of the first guide groove 214. The first guide groove 214 is provided with a first upper track and a first lower track 316, which are arranged opposite to each other. The first upper track is formed along the XZ plane (the plane formed by the X-axis and the Z-axis) on the upper surface of the fixed base 40, and the first lower track 316 is formed along the XZ plane on the lower surface of the first carrier 31 and adjacent to the first magnet 212. The movement trajectory of the first support mechanism 213 is restricted between the first upper track and the first lower track 316, which helps to guide the first carrier 31 during rotation along the Y-axis. Furthermore, rolling friction is used instead of sliding friction through ball bearings, further reducing the friction between the first carrier 31 and the fixed base 40, effectively improving the stability of the first carrier 31 during X-axis optical image stabilization, and improving image quality. Figure 10 As shown.

[0079] In some embodiments, the second rotation axis 202 is orthogonal to the plane of the second guide groove 224. The second guide groove 224 is provided with a second upper track 317 and a second lower track 52. The second upper track 317 and the second lower track 52 are arranged opposite to each other. The second upper track 317 is arranged along the YZ plane (the plane formed by the Y-axis and the Z-axis) on the upper surface of the first carrier 31. The second lower track 52 is opened along the YZ plane on the lower surface of the second carrier 50 and is adjacent to the second magnet 222. The movement trajectory of the second support mechanism 223 is restricted between the second upper track 317 and the second lower track 52, which helps to guide the second carrier 50 during rotation along the X-axis. Furthermore, rolling friction is used instead of sliding friction through ball bearings, further reducing the friction between the second carrier 50 and the first carrier 31, effectively improving the stability of the second carrier 50 during Y-axis optical image stabilization, and improving image quality. Figures 4 to 6 As shown.

[0080] In some embodiments, the second support mechanism 223 may also be a guide groove 204. The second guide groove 224 is a connecting hole. The second guide groove 224 is formed on the side wall of the second carrier 50 but does not penetrate the side wall to avoid interfering with the light steering mechanism 10. The second support mechanism 223 engages with the second guide groove 224 from the side of the first carrier 31, so that the second carrier 50 rotates along the guide groove 204 on the X-axis. By utilizing the space in the X-axis direction, the space utilization in the X-axis direction is expanded, which not only reduces the space occupation in the Y-axis direction, but also helps to expand the arc length of the first guide groove 214, further increasing the anti-shake sway angle, such as... Figure 14 As shown.

[0081] In some embodiments, the light steering mechanism 10, the second carrier 50, the first carrier 31, and the fixed base 40 are stacked along the Y-axis direction. The fixed base 40 carries the first carrier 31, the first carrier 31 carries the second carrier 50, and the second carrier 50 carries the light steering mechanism 10.

[0082] In some embodiments, the first carrier 31 includes a pair of first movable load portions 311, a base 312, and a pair of guide portions 313. The first movable load portions 311 are respectively located on the outer side of the base 312. The first magnets 212 are respectively fixed to each of the first movable load portions 311. The support portion extends obliquely upward from the middle of the base 312. The first lower track 316 of the first guide groove 214 is formed on the lower surface of the base 312. The second upper track 317 of the second guide groove 224 is formed on the support portion. Figure 7 As shown.

[0083] In some embodiments, the middle portion 314 of the base 312 is lower than the side portion 315, which helps to reduce the height in the Y-axis direction.

[0084] In some embodiments, a gap is provided in each of the first guide grooves 214, dividing each of the first guide grooves 214 into two, so that two first balls can be accommodated at intervals in each of the first guide grooves 214. If there are more first balls, the first guide grooves 214 need to be larger in size, while if only one first ball is used, it will cause the first carrier 31 to wobble. The gap can be provided in the first upper rail and / or the first lower rail 316 to facilitate the spaced first balls in the first guide grooves 214 at intervals, thereby maintaining the spacing between the first balls and helping to stabilize rolling. Figure 8 As shown, a gap is provided in the middle of the first lower track 316, and the first ball is held in each gap area.

[0085] In some embodiments, the second carrier 50 includes a second movable load portion 51 and a support surface 53. The inclined surface 12 of the light-directing mechanism 10 is attached to the support surface 53. The second movable load portion 51 is located on the rear side of the second carrier 50. The second magnet 222 is fixed to the second movable load portion 51. The second lower track 52 of the second guide groove 224 is formed on the back side of the second carrier 50. The second ball is constrained within the second upper track 317 and the second lower track 52. The inclined surface 12 of the light-directing mechanism 10 is glued to the support surface 53, effectively preventing the light-directing mechanism 10 from sliding downwards and ensuring it remains stably within the second carrier 50.Figure 9 As shown.

[0086] In some embodiments, the fixed base 40 includes a circuit board 41 and a base 42. The first upper track of the first guide groove 214 is symmetrically opened on the outer side of the base 42. The first upper track is adjacent to the first magnet 212. The circuit board 41 covers the side wall of the base 42. The first coil 211 and the second coil 221 are sequentially attached to the circuit board 41. The side wall of the base 42 is provided with a plurality of openings 421. The first coil 211 and the second coil 221 are accommodated in the openings 421, so that the first coil 211 and the first magnet 212 are arranged opposite each other with a gap, and the second coil 221 and the second magnet 222 are arranged opposite each other with a gap. The circuit board 41 is fixed or joined to the side wall of the fixed base 40. The first coil 211 and the second coil 221 are electrically connected to the circuit board 41. When performing X-axis anti-shake correction, the first coil 211 is energized through the circuit board 41. After being energized, the first coil 211 generates a magnetic induction with the first magnet 212, driving the first magnet 212 and thus causing the first carrier 31 to rotate around the Y-axis. When performing Y-axis anti-shake correction, the second coil 221 is energized through the circuit board 41. After being energized, the second coil 221 generates a magnetic induction with the second magnet 222, driving the second magnet 222 and thus causing the second carrier 50 to rotate around the X-axis. Since only the second carrier 50 and its light-directing mechanism 10 need to be driven to rotate, the Y-axis anti-shake stroke requires relatively small driving force, without needing to drive the entire movable carrier 30 to pitch, thus reducing power consumption. The volume and number of the second magnet 222 can be smaller than the volume and number of the first magnet 212. Therefore, there is one second magnet 222 and two first magnets 212, correspondingly, there is one second coil 221 and two second coils 221. In other words, by controlling the Y-axis anti-shake travel and the X-axis anti-shake travel separately, it helps to reduce the burden on each component. It is not necessary to move the movable carrier 30 as a whole during the Y-axis anti-shake travel. Under the condition that the volume of the second magnet 222 and the driving force are constant, the Y-axis large-angle anti-shake travel is effectively increased.

[0087] In some embodiments, the circuit board 41 is an FPC (flexible printed circuit board). The first coil 211 is attached to both sides of the circuit board 41, and the second coil 221 is attached to the middle of the circuit board 41, so that the coils are all located around the periphery of the light-directing mechanism 10, making assembly more convenient and eliminating the need to place the coils on the bottom surface, thus saving bottom space. Simultaneously, the first guide groove 214 and the first support mechanism 213 are disposed on the base 42 of the fixed base 40, simplifying assembly. The movable carrier 30 can be directly stacked on the base 42, reducing assembly difficulty and improving production efficiency.

[0088] In some embodiments, the light steering assembly 1 further includes a housing 3, in which the light steering mechanism 10 and the rotation mechanism 2 are housed.

[0089] In some embodiments, the first carrier 31, the second carrier 50, the fixed base 40, and the corresponding guide groove can be injection molded.

[0090] In some embodiments, the driving device 20 further includes a first sensing mechanism and a second sensing mechanism. The first sensing mechanism is installed in the first coil 211 and is arranged opposite to the first magnet 212 to detect the position of the first magnet 212 and thereby control the yaw angle of the light steering mechanism 10. The second sensing mechanism is installed in the second coil 221 and is arranged opposite to the second magnet 222 to detect the position of the second magnet 222 and thereby control the pitch angle of the light steering mechanism 10.

[0091] In some embodiments, the first sensing mechanism and the second sensing mechanism may be other position sensing devices such as ICs and Hall effect devices.

[0092] In some embodiments, the second rotating shaft 202 is placed as close as possible to the center of the first sensing mechanism. For example, if the second rotating shaft 202 passes through the center of the first sensing mechanism, it helps to reduce or eliminate the influence of the second magnet 222 and the second coil 221 on the first sensing mechanism.

[0093] In some embodiments, the periscope camera module further includes an assembly, in which the light steering component 1, the lens assembly 60, and the photosensitive component 70 are housed, and the assembly has a window corresponding to the first optical path 101. For example, in this embodiment of the invention, when the light-directing mechanism 10 is implemented as a prism, during the image acquisition process of the periscope camera module, the light reflected from the acquisition side reaches the light-directing mechanism 10 through the window of the assembly, enters the interior of the light-directing mechanism 10 through one of the right-angle surfaces 11, and is then reflected and redirected by the inclined surface 12 of the light-directing mechanism. The light then exits through the other right-angle surface 11 of the light-directing mechanism 10 and reaches the lens assembly 60. Further, the redirected light is refracted by the lens assembly 60 and filtered by the filter of the photosensitive component 70 before reaching the photosensitive chip of the photosensitive component 70. Further, the photosensitive chip converts the light signal into an electrical signal, which is transmitted to a connected terminal block. The terminal block then transmits the electrical signal to the applied electronic device, thereby achieving image acquisition and image reproduction through the electronic device.

[0094] In some embodiments, the periscope camera module further includes a driving element, in which the lens assembly 60 is disposed, so as to drive the lens assembly 60 to move back and forth along the optical axis via the driving element to achieve autofocus, while keeping the lens assembly 60 in the light-sensing path of the photosensitive component 70. For example, but not limited to, the driving element may be implemented as a voice coil motor or a piezoelectric motor.

[0095] According to the second aspect of this application, such as Figures 12 to 16 As shown, the rotating mechanism 2 includes a driving device 20, a movable carrier 30, and a fixed base 40. The movable carrier 30 carries the light steering mechanism 10. The driving device 20 includes a first driving component and a second driving component. The movable carrier 30 includes a first carrier 31 and a second carrier 50. The first driving component drives the first carrier 31 to rotate around the Y-axis, and the second driving component drives the second carrier 50 to rotate around the X-axis.

[0096] In some embodiments, the first driving component includes a first coil 211, a first magnet 212, a first guide groove 214, and a first ball bearing. The first magnet 212 is fixed to the left and right sides of the first carrier 31. The first coil 211 is attached to the left and right sidewalls of the fixed base 40 and is arranged opposite to the first coil 211. The first guide groove 214 and the first ball bearing are located between the first carrier 31 and the fixed base 40. Through the magnetic induction between the first coil 211 and the first magnet 212, the first carrier 31 can be driven to rotate along the first guide groove 214 and around the Y-axis to achieve X-axis anti-shake correction.

[0097] In some embodiments, the second driving assembly includes a second coil 221, a second magnet 222, a guide rod 203, and a guide rod groove 204. The second magnet 222 is fixed to the rear side of the second carrier 50. The second coil 221 is attached to the rear sidewall of the fixed base 40 and is arranged opposite to the second magnet 222. The guide rod grooves 204 are respectively opened on both sides of the second carrier 50. The guide rod 203 extends from the side of the first carrier 31 into the guide rod groove 204, and the guide rod 203 does not penetrate into the light steering mechanism 10. A lubricant is applied between the guide rod 203 and the guide rod groove 204 to reduce the friction between the guide rod 203 and the guide rod groove 204. Through the magnetic induction between the second coil 221 and the second magnet 222, the second carrier 50 can be driven to rotate around the guide rod 203 in the X-axis direction to achieve Y-axis anti-shake correction. By replacing the second guide groove 224 and the second ball bearing with the guide rod 203 and guide rod groove 204, the height can be further reduced, the space in the X-axis direction can be rationally utilized, the curvature of the first guide groove 214 can be expanded, and the space in the Y-axis direction can be further saved.

[0098] The basic principles, main features, and advantages of this invention have been described above. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection claimed by this invention is defined by the appended claims and their equivalents.

Claims

1. A rotating mechanism for driving a light steering mechanism, characterized by, The utility model relates to a light steering device, comprising: a movable carrier carrying a light steering mechanism; a fixed base carrying the movable carrier along a first rotation axis direction; a driving device including at least one set of coils and at least one set of magnets, the coils being arranged on the circumferential side of the fixed base and parallel to the first rotation axis, the magnets being fixed to the movable carrier and arranged opposite to the coils, when the coils are energized, the magnets are driven to rotate the light steering mechanism around the first rotation axis and / or around a second rotation axis, the first rotation axis and the second rotation axis are respectively orthogonal to the optical axis, wherein the driving device further includes at least one supporting mechanism and at least one guide slot, the at least one guide slot is opened between the movable carrier and the fixed base, the supporting mechanism is movably engaged in the guide slot, so as to make the movable carrier rotate along the first rotation axis or the second rotation axis, wherein the movable carrier includes a first carrier and a second carrier, the first carrier and the second carrier are arranged opposite along the first rotation axis direction, the at least one set of magnets is fixed to the circumferential side of the second carrier and arranged opposite to the at least one set of coils, the at least one guide slot and the at least one supporting mechanism are arranged between the first carrier and the second carrier.

2. The swivel mechanism of claim 1, wherein The at least one set of coils includes at least one first coil and at least one second coil, the at least one set of magnets includes at least one first magnet and at least one second magnet, the first magnet is fixed to the two sides of the first carrier along the second rotation axis, the first coil is arranged opposite to the first magnet, the first coil and the first magnet form a first magnetic field loop, so as to drive the first carrier to rotate along the first rotation axis, the second magnet is fixed to the circumferential side of the second carrier along the optical axis direction, the second coil is arranged opposite to the second magnet, the second coil and the second magnet form a second magnetic field loop, so as to drive the second carrier to rotate along the second rotation axis.

3. The swivel mechanism of claim 2, wherein, The first carrier is arranged between the second carrier and the fixed base along the first rotation axis, the first carrier forms a relative surface with the second carrier and the fixed base respectively, the at least one guide slot and the at least one supporting mechanism are arranged in the relative surface, so as to support the rotation of the first carrier relative to the second carrier and / or the fixed base.

4. The swivel mechanism of claim 3, wherein, The first coil and the second coil are respectively attached to the circumferential side of the fixed base, the first coil and the first magnet are symmetrically arranged on the left and right sides of the light steering mechanism, the second coil and the second magnet are arranged on the back side of the light steering mechanism.

5. The swivel mechanism of claim 2, wherein, The guide slots include first guide slots and second guide slots, the supporting mechanisms include first supporting mechanisms and second supporting mechanisms, the first guide slots are symmetrically arranged on opposite surfaces of the fixed base and the first carrier, the second guide slots are respectively arranged on opposite surfaces of the first carrier and the second carrier, the first supporting mechanisms are accommodated in the first guide slots, and the second supporting mechanisms are accommodated in the second guide slots.

6. The swivel mechanism of claim 5, wherein, The first guide slots are in arc structures and parallel to the X-Z plane, the first supporting mechanisms are balls, two first balls are arranged in each first guide slot, and the first balls are distributed at intervals.

7. The swivel mechanism of claim 5, wherein, The second guide slots are in arc structures and parallel to the Y-Z plane, the second supporting mechanisms are balls, two second balls are arranged in each second guide slot, and the second balls are distributed at intervals.

8. The swivel mechanism of claim 5, wherein, The first guide slots have a bending arc of 45-55 degrees.

9. The swivel mechanism of claim 8, wherein, The first guide slots have a bending arc of 50 degrees.

10. The swivel mechanism of claim 5, wherein, The second guide slots have a bending arc of 13-18 degrees.

11. The swivel mechanism of claim 10, wherein, The second guide slots have a bending arc of 15 degrees.

12. The swivel mechanism of claim 5, wherein, The second supporting mechanisms are guide rods, the second guide slots are arranged on two sides of the second carrier, the second supporting mechanisms extend from the side of the first carrier to the second guide slots, and the second carrier rotates around the second supporting mechanisms.

13. The swivel mechanism of claim 5, wherein, The first rotating shaft is perpendicular to the plane where the first guide slots are located, the first guide slots are provided with first upper tracks and first lower tracks, the first upper tracks and the first lower tracks are oppositely arranged, and the first supporting mechanisms are rollably accommodated between the first upper tracks and the first lower tracks.

14. The swivel mechanism of claim 13, wherein, The second rotating shaft is perpendicular to the plane where the second guide slots are located, the second guide slots are provided with second upper tracks and second lower tracks, the second upper tracks and the second lower tracks are oppositely arranged, and the second supporting mechanisms are rollably accommodated between the second upper tracks and the second lower tracks.

15. The swivel mechanism of claim 13, wherein, The fixed base includes a circuit board and a base, the first upper tracks of the first guide slots are symmetrically arranged on the outer side of the base, the first upper tracks are adjacent to the first magnets, the circuit board covers the side wall of the base, the first coil and the second coil are sequentially attached to the circuit board, and the side wall of the base is provided with a plurality of openings, and the first coil and the second coil are accommodated in the openings.

16. The swivel mechanism of claim 15, wherein, The circuit board is a flexible circuit board, the first coil is attached to the two sides of the circuit board, and the second coil is attached to the middle of the circuit board.

17. The swivel mechanism of claim 14, wherein, The first carrier includes a pair of first dynamic load parts, a base and a pair of guide parts, the first dynamic load parts are respectively located on the outer side of the base, the first magnets are respectively fixed to the first dynamic load parts, a supporting part extends upwardly and obliquely from the middle of the base, a first lower track of the first guide slot is arranged on the lower surface of the base, and a second upper track of the second guide slot is arranged on the supporting part.

18. The swivel mechanism of claim 14, wherein, The second carrier includes a second dynamic load part and a support surface, the inclined surface of the light turning mechanism is attached to the support surface, the second dynamic load part is located at the back side of the second carrier, the second magnet is fixed to the second dynamic load part, and a second lower track of the second guide groove is opened on the back of the second carrier.

19. The swivel mechanism according to any one of claims 1 to 18, wherein The distance between each magnet and the opposite coil is 0.05-0.5mm.

20. The swivel mechanism of claim 19, wherein, The distance is 0.1-0.3mm.

21. The swivel mechanism of claim 20, wherein, The distance is 0.1mm.

22. The swivel mechanism of any one of claims 4-18, wherein: The first coil and the first magnet drive the light turning mechanism to swing around the first rotation axis by an angle of -21° to +21°, and the second coil and the second magnet drive the light turning mechanism to pitch around the second rotation axis by an angle of -8° to +3°.

23. The swivel mechanism of any one of claims 4-18, wherein: The driving device further includes a first sensing mechanism and a second sensing mechanism, the first sensing mechanism is installed in the first coil and is arranged opposite to the first magnet to detect the position of the first magnet, and the second sensing mechanism is installed in the second coil and is arranged opposite to the second magnet to detect the position of the second magnet.

24. The swivel mechanism of claim 23, wherein, The second rotation axis passes through the center of the first sensing mechanism.

25. The swivel mechanism of any one of claims 4-18, wherein: The number of the first magnets is two, the first magnets are symmetrically arranged on the left and right sides of the first carrier along the direction of the second rotation axis, and the number of the second magnet is one, the second magnet is fixed to the back side of the second carrier along the optical axis direction.

26. The swivel mechanism of any one of claims 4-18, wherein: The first magnet is an arc structure, the N pole and the S pole of the first magnet are arranged adjacent along the Z axis, and the positions of the N pole and the S pole of the first magnets on the left and right sides are opposite, the second magnet is an arc structure, and the N pole and the S pole of the second magnet are arranged adjacent along the Y axis.

27. A periscope camera module, comprising: Comprising: a light turning mechanism for changing the direction of light; a lens assembly located in the light path of a photosensitive assembly; The rotating mechanism of any one of claims 1-26, the light turning mechanism is adjustably arranged in the rotating mechanism.

Citation Information

Patent Citations

  • Prism driving device and prism module

    CN110764217A