Camera module and electronic equipment
By using different coils to drive the same magnet in the camera module, the lens assembly can move in different directions, solving the problem of the overall size of the camera module caused by the large size of the lens assembly. This achieves efficient driving of focusing and image stabilization, reduces the use of magnets, and improves image quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2026-03-10
AI Technical Summary
The lens assembly in existing camera modules is relatively large, resulting in a large overall size of the camera module. In addition, the traditional voice coil motor drive method requires more and larger magnets and coils, which increases the size of the camera module.
By using different coils to drive the same magnet, the lens assembly can be moved in different directions to achieve focusing and image stabilization, reducing the use of magnets. The first and second lens assemblies are driven to move along the optical axis and perpendicular to the optical axis by the first and second coils respectively, thus reducing the number of magnets.
It effectively reduces the overall size of the camera module, lowers drive weight and power consumption, improves image clarity and accuracy, and enables focusing and image stabilization functions.
Smart Images

Figure CN121644959A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of lens technology, and more particularly to a camera module and electronic device. Background Technology
[0002] In related technologies, the lens in a camera module is typically driven by a voice coil motor, where an energized coil generates an Ampere force in a magnetic field, thereby moving the lens. To meet the high image quality requirements of current electronic devices, the lens assembly is becoming increasingly larger, necessitating the use of more and larger voice coil motors for focusing and image stabilization, resulting in a larger overall size for the camera module. Summary of the Invention
[0003] To overcome the problems existing in the related technologies, this disclosure provides a camera module and an electronic device.
[0004] According to a first aspect of the present disclosure, a camera module is provided, including: a first lens assembly, a second lens assembly, a base, a first coil, a first magnet, and a second coil;
[0005] The first lens assembly and the second lens assembly are coaxially disposed on the base;
[0006] The first coil and the first magnet are arranged opposite each other to drive the first lens assembly or the second lens assembly to move along the optical axis. The first coil is arranged on the second lens assembly and the first magnet is arranged on the first lens assembly, or the first coil is arranged on the first lens assembly and the first magnet is arranged on the second lens assembly.
[0007] The second coil is positioned opposite the first magnet to drive the first lens assembly and the second lens assembly to move synchronously perpendicular to the optical axis. The second coil is disposed on the base.
[0008] In some embodiments, a second magnet is also included;
[0009] The second magnet is disposed on the first lens assembly or the second lens assembly, the first magnet and the second magnet are arranged circumferentially along the optical axis, and the second coil is disposed opposite to the first magnet and the second magnet respectively.
[0010] In some embodiments, the first lens assembly includes a first lens element and a lens frame;
[0011] The first lens is disposed on the lens frame;
[0012] The second lens assembly includes a second lens element and a lens carrier;
[0013] The second lens is disposed on the lens carrier, the lens frame has a cavity, and the lens carrier is located inside the cavity;
[0014] The lens frame is connected to the lens carrier, and the lens frame or the lens carrier is connected to the base.
[0015] In some embodiments, the first magnet is disposed on the inner sidewall of the lens frame, and the first coil is disposed on the lens carrier and faces the first magnet;
[0016] The second magnet is disposed on the inner side wall of the lens frame, and both the first magnet and the second magnet are disposed close to the side of the lens frame facing the base.
[0017] In some embodiments, there are two first coils, which are located on opposite sides of the lens carrier, and there are two first magnets, which are arranged in a one-to-one correspondence with the two second coils.
[0018] In some embodiments, the two first magnets and the second magnet are arranged in a triangular pattern;
[0019] The main body of the second coil has a gate-shaped structure, which matches the arrangement of the two first magnets and the second magnet.
[0020] In some embodiments, a first connector and a second connector are also included;
[0021] The lens carrier is connected to the lens frame via the first connector;
[0022] The lens carrier or the lens frame is connected to the base via the second connector.
[0023] In some embodiments, the first connector includes a spring;
[0024] One end of the reed is connected to the lens carrier, and the other end of the reed is connected to the lens frame.
[0025] In some embodiments, the second connector is made of an elastic material, the main body of the second connector is a rod-shaped structure, one end of the second connector is connected to the lens carrier or the lens frame, and the other end of the second connector is connected to the base.
[0026] In some embodiments, the axis of the second connector is parallel to the optical axis of the second lens, and there are multiple second connectors arranged circumferentially along the optical axis.
[0027] In some embodiments, a housing is also included;
[0028] The outer casing has a shell structure and is fastened to the base. The first lens assembly, the second lens assembly, the first coil, the first magnet, and the second coil are all located inside the outer casing.
[0029] The outer shell has a light-transmitting hole, and the optical axis passes through the light-transmitting hole.
[0030] In some embodiments, optical elements and an image sensor are also included;
[0031] The optical element is disposed on the base and is used to refract and / or reflect light passing through the first lens assembly and the second lens assembly;
[0032] The image sensor is disposed on the base and is used to receive light emitted by the optical element.
[0033] In some embodiments, the optical element includes a prism.
[0034] According to a second aspect of the present disclosure, an electronic device is provided, comprising:
[0035] The camera module described in any of the first aspects above.
[0036] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: the first lens assembly and the second lens assembly are arranged on the same optical axis to ensure the clarity and accuracy of the image. A base is used to provide a mounting foundation. Both the first lens assembly and the second lens assembly are disposed on the base, and the first lens assembly and / or the second lens assembly can move relative to the base along the optical axis for focusing by the camera module. The first lens assembly and the second lens assembly can also move synchronously relative to the base perpendicular to the optical axis for image stabilization by the camera module. Specifically, by placing a first coil on the second lens assembly and a first magnet on the first lens assembly, or by placing a first coil on the first lens assembly and a first magnet on the second lens assembly, the first coil and the first magnet can drive the first lens assembly or the second lens assembly to move along the optical axis for focusing. Compared to traditional focusing methods, i.e., driving the entire lens, the camera module of the embodiments of this disclosure drives a single lens assembly (the first lens assembly or the second lens assembly) during focusing, requiring a relatively small driving weight, thus avoiding the use of large coils and magnets. By placing the second coil on the base, the second coil and the first magnet can drive the first lens assembly and the second lens assembly to move synchronously perpendicular to the optical axis for image stabilization. Compared with traditional focusing and image stabilization methods, which require at least one magnet and a corresponding coil in each driving direction, the first magnet in this embodiment not only participates in the focusing drive but also in the image stabilization drive, thereby effectively reducing the number of magnets required and reducing the overall size of the camera module.
[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0038] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.
[0039] Figure 1 This is an exploded view of a camera module according to an exemplary embodiment.
[0040] Figure 2 This is an exploded view of a camera module according to another exemplary embodiment.
[0041] Figure 3 This is a schematic diagram of the optical path of a camera module according to an exemplary embodiment.
[0042] Figure label:
[0043] 1. First lens assembly; 2. Second lens assembly; 3. First magnet; 4. Second magnet; 5. Base; 6. Image sensor; 7. Housing; 8. First connector; 9. Second connector; 11. First lens element; 12. Lens bracket; 13. Lens frame; 21. Second lens element; 22. Lens carrier; 51. Second coil; 52. Optical element; 53. Optical element bracket; 221. First coil. Detailed Implementation
[0044] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.
[0045] The electronic devices involved in this disclosure, also referred to as terminals, terminal devices, user equipment (UE), mobile stations (MS), mobile terminals (MT), etc., are devices that provide voice and / or data connectivity to users. For example, electronic devices can be handheld devices with wireless connectivity, in-vehicle devices, etc. Currently, examples of electronic devices include: smartphones (Mobile Phones), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices. Furthermore, when it is a vehicle-to-everything (V2X) communication system, the electronic device can also be an in-vehicle device. It should be understood that the embodiments of this disclosure do not limit the specific technologies or device forms used in the electronic devices.
[0046] In related technologies, camera modules are designed to accommodate heavier lens components, requiring more and larger voice coil motors to drive the lens components for focusing and image stabilization, resulting in a larger overall size of the camera module.
[0047] To address the aforementioned technical problems, this disclosure proposes a camera module and electronic device. By using different coils to drive the same magnet, it can drive the lens assembly to move in different directions, thereby achieving focusing and image stabilization. Compared to the traditional voice coil motor control method, which requires a magnet and corresponding coil in each direction, the embodiments of this disclosure effectively reduce the use of magnets, thereby reducing the overall size of the camera module.
[0048] Figure 1 This is an exploded view of a camera module according to an exemplary embodiment, such as... Figure 1 As shown, the camera module includes: a first lens assembly 1, a second lens assembly 2, a base 5, a first coil 221, a first magnet 3, and a second coil 51. The first lens assembly 1 and the second lens assembly 2 are coaxially mounted on the base 5. The first coil 221 and the first magnet 3 are positioned opposite each other to drive either the first lens assembly 1 or the second lens assembly 2 to move along the optical axis. Alternatively, the first coil 221 may be mounted on the second lens assembly 2 and the first magnet 3 on the first lens assembly 1, or the first coil 221 may be mounted on the first lens assembly 1 and the first magnet 3 on the second lens assembly 2. The second coil 51 and the first magnet 3 are positioned opposite each other to drive the first lens assembly 1 and the second lens assembly 2 to move synchronously perpendicular to the optical axis. The second coil 51 is mounted on the base 5.
[0049] In this embodiment of the camera module, during image acquisition, the light from the subject passes sequentially through the first lens assembly 1 and the second lens assembly 2 before being captured, where it is focused and adjusted. The light enters along the optical axis of the first lens assembly 1 and the optical axis of the second lens assembly 2. The first lens assembly 1 and the second lens assembly 2 are set along the same optical axis to ensure image clarity and accuracy. The base 5 provides a mounting foundation. Both the first lens assembly 1 and the second lens assembly 2 are mounted on the base 5, and the first lens assembly 1 and / or the second lens assembly 2 can move relative to the base 5 along the optical axis for focusing. The first lens assembly 1 and the second lens assembly 2 can also move synchronously relative to the base 5 perpendicular to the optical axis for image stabilization. In this embodiment, by placing the first coil 221 on the second lens assembly 2 and the first magnet 3 on the first lens assembly 1, or by placing the first coil 221 on the first lens assembly 1 and the first magnet 3 on the second lens assembly 2, the first coil 221 and the first magnet 3 can drive the first lens assembly 1 or the second lens assembly 2 to move along the optical axis for focusing. Compared to traditional focusing methods, which drive the entire lens, the camera module in this embodiment drives a single lens assembly (the first lens assembly 1 or the second lens assembly 2) during focusing, requiring a relatively small driving weight and thus avoiding the use of large coils and magnets. By placing the second coil 51 on the base 5, the second coil 51 and the first magnet 3 can drive the first lens assembly 1 and the second lens assembly 2 to move synchronously perpendicular to the optical axis for image stabilization. Compared to traditional focusing and image stabilization methods, which require at least one magnet and a corresponding coil in each driving direction, the first magnet 3 in this embodiment not only participates in the focusing drive but also in the image stabilization drive, thereby effectively reducing the number of magnets required and reducing the overall size of the camera module.
[0050] In some embodiments, the first lens assembly 1, the second lens assembly 2, and the base 5 are arranged sequentially along the optical axis, and the second coil 51 disposed on the base 5 is close to the first magnet 3 and disposed away from the optical axis.
[0051] In some embodiments, the camera module further includes a second magnet 4. The second magnet 4 is disposed on the first lens assembly 1 or the second lens assembly 2. The first magnet 3 and the second magnet 4 are arranged circumferentially along the optical axis, and a second coil 51 is disposed opposite to the first magnet 3 and the second magnet 4. The second coil 51 and the first magnet 3 are used to drive the first lens assembly 1 and the second lens assembly 2 to move along a first direction, and the second coil 51 and the second magnet 4 are used to drive the first lens assembly 1 and the second lens assembly 2 to move along a second direction. By arranging the first magnet 3 and the second magnet 4 circumferentially along the optical axis, so that the first direction and the second direction are different directions, and both the first direction and the second direction are perpendicular to the axial direction, the first lens assembly 1 and the second lens assembly 2 can be driven to move synchronously along the first direction or synchronously along the second direction via the second coil 51, the first magnet 3, and the second magnet 4, thereby achieving image stabilization.
[0052] For example, such as Figure 1 As shown, Figure 1 In the three-dimensional coordinate system, the Z-axis is aligned with the optical axis. Figure 1 The Y-axis of the three-dimensional coordinate system is in the same direction as the first direction. Figure 1 The X-axis of the three-dimensional spatial coordinate system is in the same direction as the second direction.
[0053] Figure 2 This is an exploded view of a camera module according to another exemplary embodiment, such as... Figure 2 As shown, the camera module also includes a first connector 8 and a second connector 9. The first lens assembly 1 and the second lens assembly 2 are connected via the first connector 8, and either the first lens assembly 1 or the second lens assembly 2 is connected to the base 5 via the second connector 9. The first connector 8 restricts the connected first lens assembly 1 and second lens assembly 2, allowing them to move relative to each other along the optical axis. The second connector 9 restricts the connected first lens assembly 1 or second lens assembly 2, allowing them to move relative to the base 5 in a direction perpendicular to the optical axis. This allows one of the first lens assembly 1 and second lens assembly 2 to move along the optical axis during focusing, and for image stabilization, the first lens assembly 1 and second lens assembly 2 to move synchronously in a direction perpendicular to the optical axis.
[0054] For example, the first lens assembly 1 and the second lens assembly 2 are connected by a first connector 8, and the first lens assembly 1 is connected to the base 5 by a second connector 9. During focusing, because the first lens assembly 1 and the base 5 are connected by the second connector 9, the first lens assembly 1 cannot move along the optical axis relative to the base 5. Instead, the second lens assembly 2 moves along the optical axis relative to the base 5. Figure 1 The lens assembly 1 moves along the Z-axis for focusing. During image stabilization, the first lens assembly 1 moves relative to the base 5 in a direction perpendicular to the optical axis, i.e., the first lens assembly 1 moves along... Figure 1 When the first lens assembly 1 moves along the X-axis or Y-axis, it drives the second lens assembly 2 to move synchronously with the first lens assembly 1 via the first connector 8. Alternatively, the second lens assembly 2 is connected to the first lens assembly 1 via the first connector 8, and the second lens assembly 2 is connected to the base 5 via the second connector 9. During focusing, because the second lens assembly 2 is connected to the base 5 via the second connector 9, the second lens assembly 2 cannot move relative to the base 5 along the optical axis. In this case, the first lens assembly 1 moves relative to the base 5 along the optical axis, i.e., the first lens assembly 1 moves along the optical axis. Figure 1 The second lens assembly 2 moves relative to the base 5 in a direction perpendicular to the optical axis for focusing. During image stabilization, the second lens assembly 2 moves relative to the base 5 in a direction perpendicular to the optical axis. Figure 1 When the second lens assembly 2 moves along the X-axis or Y-axis, it moves through the first connector 8, causing the first lens assembly 1 to move synchronously with the second lens assembly 2.
[0055] In some embodiments, such as Figure 1 As shown, the first lens assembly 1 includes a first lens element 11 and a lens frame 13, with the first lens element 11 disposed on the lens frame 13. The optical axis of the first lens assembly 1 is the same as the optical axis of the first lens element 11. The second lens assembly 2 includes a second lens element 21 and a lens carrier 22, with the second lens element 21 disposed on the lens carrier 22. The optical axis of the second lens assembly 2 is the same as the optical axis of the second lens element 21. The lens frame 13 has a cavity, and the lens carrier 22 is located inside the cavity, so that the first lens assembly 1 and the second lens assembly 2 are arranged with the same optical axis.
[0056] The lens frame 13 is connected to the lens carrier 22, meaning the first lens assembly 1 and the second lens assembly 2 are connected via the first connector 8. The lens frame 13 or the lens carrier 22 is connected to the base 5, meaning the first lens assembly 1 or the second lens assembly 2 is connected to the base 5 via the second connector 9.
[0057] In some embodiments, the lens frame 13 has openings at both opposite ends of its cavity for light to pass through, and the first lens 11 covers one of these openings. The main body of the lens carrier 22 has a tubular structure to allow light to pass through, and the second lens 21 is disposed inside the cavity of the tubular structure of the lens carrier 22, or covers one end of the tubular structure of the lens carrier 22. By mounting the lens carrier 22 inside the cavity of the lens frame 13, the first lens 11 and the second lens 21 can be coaxially arranged.
[0058] In some implementations, such as Figure 1 and Figure 2 As shown, the first lens assembly 1 also includes a lens bracket 12. The first lens element 11 is mounted on the lens frame 13 via the lens bracket 12.
[0059] The lens bracket 12 has a ring-shaped structure, and the first lens 11 is installed inside the ring-shaped structure of the lens bracket 12 by snap-fit or threaded connection. The lens bracket 12 snaps into the side of the lens frame 13 with an opening, so that the first lens 11 can cover the opening of the lens frame 13.
[0060] In some embodiments, a preset gap is left between the outer sidewall of the lens carrier 22 and the inner sidewall of the lens frame 13 to provide movement space for the lens carrier 22 or the lens frame 13 when the first coil 221 and the first magnet 3 are driven to focus.
[0061] In some embodiments, the first magnet 3 is disposed on the inner sidewall of the lens frame 13, and the first coil 221 is disposed on the lens carrier 22 and faces the first magnet 3.
[0062] For example, the lens carrier 22 is located inside the cavity of the lens frame 13, meaning the outer wall of the lens carrier 22 and the inner wall of the lens frame 13 face each other. A first magnet 3 is disposed on the inner wall of the lens frame 13, and a first coil 221 is disposed on the outer wall of the lens carrier 22, with the first magnet 3 and the first coil 221 facing each other. The first magnet 3 is a planar bipolar magnetized structure or composed of two magnets, and the first coil 221 is a ring coil, with its upper and lower long sides located in the two polarities of the first magnet 3. When the first coil 221 is energized, a force parallel to the optical axis is generated in the magnetic field of the first magnet 3, pushing the lens carrier 22 or the lens frame 13 to move. This causes the second lens element 21 to move closer to or further away from the first lens element 11 along the optical axis, thus achieving focusing. The relative movement of the first lens element 11 and the second lens element 21 allows for a relatively small movement to result in a large change in focal length.
[0063] The second magnet 4 is disposed on the inner side wall of the lens frame 13. Both the first magnet 3 and the second magnet 4 are disposed close to the side of the lens frame 13 facing the base 5, that is, the first magnet 3 and the second magnet 4 are disposed close to the second coil 51.
[0064] In some embodiments, the second coil 51 includes a first part and a second part, wherein the first part is disposed opposite to the first magnet 3, and the second part is disposed opposite to the second magnet 4. The first part and the second part are coils that can be energized independently. When the first part of the second coil 51 is energized, a force perpendicular to the optical axis is generated in the magnetic field of the first magnet 3, pushing the lens frame 13 to move along a first direction. When the second part of the second coil 51 is energized, a force perpendicular to the optical axis is generated in the magnetic field of the second magnet 4, pushing the lens frame 13 to move along a second direction. During the movement of the lens frame 13 along either the first or second direction, the lens carrier 22 moves synchronously to ensure that the first lens element 11 and the second lens element 21 are always aligned with the optical axis during image stabilization.
[0065] It should be noted that although the present disclosure has been described with reference to the above embodiments, those skilled in the art can configure the first magnet 3, the second magnet 4 and the second coil 51 according to the actual situation. It is only necessary to enable the second coil 51 to push the lens frame 13 or the lens carrier 22 to move along the first direction and the second direction through the first magnet 3 and the second magnet 4.
[0066] In some embodiments, a first coil 221 is disposed on the outer side wall of the lens carrier 22, and a first magnet 3 is disposed on the inner side wall of the lens frame 13, with the first coil 221 and the first magnet 3 disposed opposite to each other. A second magnet 4 is disposed on the lens carrier 22. Figure 1 As shown, the first coil 221 and the second magnet 4, both located on the lens carrier 22, are oriented towards the Y-axis and X-axis directions, respectively. The second magnet 4 can be located on the outer side wall, inner side wall, or end of the lens carrier 22. Alternatively, the second magnet 4 can be located on the lens frame 13, such as... Figure 1 As shown, the first magnet 3 and the second magnet 4, both disposed on the lens frame 13, are oriented towards the Y-axis and X-axis directions, respectively. The second magnet 4 can be located on the outer side wall, the inner side wall, or the end of the lens frame 13.
[0067] In some embodiments, a first coil 221 is disposed on the inner sidewall of the lens frame 13, and a first magnet 3 is disposed on the outer sidewall of the lens carrier 22, with the first coil 221 and the first magnet 3 disposed opposite to each other. A second magnet 4 is disposed on the lens carrier 22. Figure 1As shown, the first magnet 3 and the second magnet 4, both located on the lens carrier 22, face the Y-axis and X-axis directions, respectively. The second magnet 4 can be located on the outer wall, inner wall, or end of the lens carrier 22. Alternatively, the second magnet 4 can be located on the lens frame 13, such as... Figure 1 As shown, the first coil 221 and the second magnet 4, both located on the lens frame 13, are oriented towards the Y-axis and X-axis directions, respectively. The second magnet 4 can be located on the outer wall, the inner wall, or the end of the lens frame 13.
[0068] In some embodiments, such as Figure 1 and Figure 2 As shown, there are two first coils 221, located on opposite sides of the lens carrier 22. There are also two first magnets 3, each corresponding to one of the two second coils 51. By using two first coils 221 and two first magnets 3, during focusing, when the first coils 221 are energized, the force generated in the magnetic field of the first magnets 3, parallel to the optical axis, is located on opposite sides of the lens carrier 22, thus making the movement of the lens carrier 22 or lens frame 13 more stable.
[0069] In some embodiments, such as Figure 1 and Figure 2 As shown, the two first magnets 3 and the second magnet 4 are arranged in a triangular pattern. The main body of the second coil 51 has a gate-shaped structure, which matches the arrangement of the two first magnets 3 and the second magnet 4. When the image stabilization is activated, the second coil 51 is energized, and the force generated in the magnetic field of the first magnet 3 or the second magnet 4 is perpendicular to the optical axis, thereby making the movement of the lens carrier 22 or the lens frame 13 more stable.
[0070] In other words, the second coil 51 includes two first parts and one second part, with the second part located between the two first parts to form a gate-shaped structure of the second coil 51.
[0071] In some embodiments, a first connector 8 and a second connector 9 are also included. The lens carrier 22 is connected to the lens frame 13 via the first connector 8. The lens carrier 22 is connected to the base 5 via the second connector 9. The first connector 8 is used to restrict the connected lens frame 13 and lens carrier 22, allowing them to move relative to each other along the optical axis. The second connector 9 is used to restrict the connected lens carrier 22, allowing it to move relative to the base 5 in a direction perpendicular to the optical axis. This enables the lens frame 13 to move along the optical axis during focusing, and the lens frame 13 and lens carrier 22 to move synchronously in a direction perpendicular to the optical axis during image stabilization.
[0072] In some embodiments, the first connector 8 includes a spring. One end of the spring is connected to the lens carrier 22, and the other end is connected to the lens frame 13. By providing the spring, the lens carrier 22 can be suspended inside the lens frame 13. When the first coil 221 is not energized, the lens carrier 22 is suspended inside the lens frame 13 by the spring and is in its initial position. When the first coil 221 is energized, a force parallel to the optical axis is generated in the magnetic field of the first magnet 3, pushing the lens carrier 22 or the lens frame 13 to move, and the spring undergoes elastic deformation.
[0073] The reed is made of an elastic material and its main body is sheet-like. The thickness direction of the reed is in the same direction as the optical axis so that the reed can undergo elastic deformation in the direction of the optical axis and is not easy to undergo elastic deformation in the direction perpendicular to the optical axis, thereby restricting the connected lens frame 13 and lens carrier 22 to move relative to each other along the optical axis.
[0074] In some embodiments, the second connector 9 is made of an elastic material, and its main body is a rod-shaped structure. One end of the second connector 9 is connected to the lens carrier 22, and the other end is connected to the base 5. The axis of the rod-shaped structure of the second connector 9 is in the same direction as the optical axis. By setting the second connector 9 to a rod-shaped structure, it can elastically deform in its width direction but is less prone to elastic deformation in its length direction, thus facilitating support for the lens carrier 22 and restricting its movement relative to the base 5 in a direction perpendicular to the optical axis.
[0075] In some embodiments, one end of the second connector 9 is connected to the lens frame 13, and the other end of the second connector 9 is connected to the base 5. That is, the first connector 8 can be disposed on the lens carrier 22 or the lens frame 13, as long as the second connector 9 can support the lens carrier 22 and / or leave a preset gap between the lens frame 13 and the base 5.
[0076] In some embodiments, the axis of the second connector 9 is parallel to the optical axis of the second lens 21. There are multiple second connectors 9, which are arranged circumferentially along the optical axis. By providing multiple second connectors 9, the stability of the support provided by the second connectors 9 for the lens frame 13 or lens carrier 22 is ensured.
[0077] In some embodiments, such as Figure 2As shown, the camera module also includes a housing 7. The housing 7 has a shell structure and is fastened to the base 5. The first lens assembly 1, the second lens assembly 2, the first coil 221, the first magnet 3, and the second coil 51 are all located inside the housing 7. The housing 7 provides protection for the first lens assembly 1, the second lens assembly 2, the first coil 221, the first magnet 3, and the second coil 51 located inside the housing 7. The housing 7 has a light-transmitting hole through which the optical axis passes. This allows light from the subject to enter the housing 7 through the light-transmitting hole and then pass sequentially through the first lens assembly 1 and the second lens assembly 2. Furthermore, by providing the housing 7, external stray light is effectively prevented from entering, thereby effectively improving image quality.
[0078] In some embodiments, the camera module further includes an optical element 52 and an image sensor 6. The optical element 52 is disposed on the base 5 and is used to refract and / or reflect light passing through the first lens assembly 1 and the second lens assembly 2. The image sensor 6 is disposed on the base 5 and is used to receive light emitted from the optical element 52. By refracting and / or reflecting light using the optical element 52, the optical path of the light is altered, thereby extending the optical path of the light from the second lens assembly 2 to the image sensor 6 within the limited internal space of the camera module, thus improving the optical zoom effect.
[0079] Figure 3 This is a schematic diagram of the optical path of a camera module according to an exemplary embodiment, such as... Figure 3 As shown, the arrows indicate the direction of the light rays from the subject. The light rays from the subject pass sequentially through the first lens 11 and the second lens 21, and are then reflected by the optical element 52 to the image sensor 6.
[0080] The optical element 52 is mounted on the base 5 via the optical element bracket 53.
[0081] In some embodiments, the optical element 52 includes a prism. By setting the prism to reflect light passing through the first lens assembly 1 and the second lens assembly 2 to the image sensor 6, the camera module of this embodiment constitutes a periscope lens.
[0082] It should be noted that although the embodiments of this disclosure use a prism as an example to describe the optical element 52, those skilled in the art can set the specific type or number of the optical element 52 according to the actual situation. It is only necessary to enable the optical element 52 to extend the light path of the object from the second lens assembly 2 to the image sensor 6 by refracting and / or reflecting light.
[0083] This embodiment uses two independent lenses mounted on two relatively movable lens frames 13 and lens carriers 22. The autofocus function is achieved by moving one lens relative to the other in a direction parallel to the optical axis, allowing it to move closer to or further away from the image sensor 6. This results in a relatively small lens weight and low power consumption. Optical image stabilization is achieved by simultaneously translating the two lenses relative to the image sensor 6. The introduction of the reflective function of the optical element 52 allows for a vertically positioned image sensor 6, significantly increasing its area. Furthermore, the vertical positioning of the optical element 52 and lens as a whole breaks away from the traditional method of horizontally placing the optical element 52 and lens inside the phone. This method of vertically positioning the lens and optical element 52 greatly reduces the volume required for the periscope optical element 52 telephoto module.
[0084] Based on the same concept, this disclosure also provides an electronic device, including: the camera module described in any of the above. For example, the electronic device can be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, examples of electronic devices include: smartphones (Mobile Phones), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices, etc. Furthermore, when it is a vehicle-to-everything (V2X) communication system, the electronic device can also be an in-vehicle device. It should be understood that this disclosure does not limit the specific technology or form of the electronic device.
[0085] It is understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.
[0086] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.
[0087] It is further understood that the terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment 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.
[0088] It can be further understood that, unless otherwise specified, "connection" includes both direct connections where no other components exist between the two parties and indirect connections where other components exist between them.
[0089] It is further understood that although operations are described in a specific order in the accompanying drawings in this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.
[0090] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.
[0091] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.
Claims
1. A camera module, characterized in that, The lens assembly comprises: a first lens assembly, a second lens assembly, a base, a first coil, a first magnet and a second coil; the first lens assembly and the second lens assembly are arranged on the base along an optical axis; the first coil and the first magnet are arranged oppositely for driving the first lens assembly or the second lens assembly to move along the optical axis, the first coil is arranged on the second lens assembly, and the first magnet is arranged on the first lens assembly, or the first coil is arranged on the first lens assembly, and the first magnet is arranged on the second lens assembly; the second coil and the first magnet are arranged oppositely for driving the first lens assembly and the second lens assembly to move synchronously perpendicularly to the optical axis, and the second coil is arranged on the base.
2. The camera module of claim 1, wherein, The lens assembly further comprises a second magnet; the second magnet is arranged on the first lens assembly or the second lens assembly, the first magnet and the second magnet are arranged circumferentially along the optical axis, and the second coil is arranged oppositely to the first magnet and the second magnet, respectively.
3. The camera module of claim 2, wherein, The first lens assembly comprises a first lens and a lens frame; the first lens is arranged on the lens frame; The second lens assembly comprises a second lens and a lens carrier; the second lens is arranged on the lens carrier, the lens frame has a cavity, and the lens carrier is located inside the cavity; the lens frame and the lens carrier are connected, and the lens frame or the lens carrier is connected to the base.
4. The camera module of claim 3, wherein, The first magnet is arranged on the inner side wall of the lens frame, and the first coil is arranged on the lens carrier and faces the first magnet; The second magnet is arranged on the inner side wall of the lens frame, and the first magnet and the second magnet are arranged close to the side of the lens frame facing the base.
5. The camera module of claim 4, wherein, The first coil is two, the two first coils are located on opposite sides of the lens carrier, the first magnet is two, and the two first magnets and the two second coils are arranged one-to-one.
6. The camera module of claim 5, wherein, The two first magnets and the second magnet are arranged in a triangular shape; The main body of the second coil has a door-shaped structure, which matches the arrangement position of the two first magnets and the second magnet.
7. The camera module according to any one of claims 3 to 6, wherein, The lens assembly further comprises a first connecting piece and a second connecting piece; the lens carrier is connected to the lens frame through the first connecting piece; the lens carrier or the lens frame is connected to the base through the second connecting piece.
8. The camera module of claim 7, wherein, The first connecting piece comprises a reed; one end of the reed is connected to the lens carrier, and the other end of the reed is connected to the lens frame.
9. The camera module of claim 7, wherein, The second connecting piece is made of elastic material, the main body of the second connecting piece has a stick-shaped structure, one end of the second connecting piece is connected to the lens carrier or the lens frame, and the other end of the second connecting piece is connected to the base.
10. The camera module of claim 9, wherein, The axis of the second connecting piece is parallel to the optical axis of the second lens, and the second connecting piece is multiple, and the multiple second connecting pieces are arranged circumferentially along the optical axis.
11. The camera module of claim 1, wherein, The lens assembly further comprises a housing. The shell is in a shell structure, the shell is buckled on the base, the first lens assembly, the second lens assembly, the first coil, the first magnet and the second coil are located in the interior of the shell; The shell is provided with a light transmission hole, and the optical axis penetrates the light transmission hole.
12. The camera module of claim 1, wherein, Further comprising an optical element and an image sensor; The optical element is arranged on the base, and is used for refracting and / or reflecting light passing through the first lens assembly and the second lens assembly; The image sensor is arranged on the base, and is used for receiving light emitted by the optical element.
13. The camera module of claim 12, wherein, The optical element comprises a prism.
14. An electronic device, comprising: Comprising: The camera module according to any one of claims 1 to 13.