Lenses and mobile terminal devices

Abstract

The present invention discloses a lens and a mobile terminal device, wherein the lens includes a base, a moving group and a magnetic driving mechanism, the moving group is arranged on the base, the moving group includes a first focusing assembly movably arranged relative to the base, the magnetic driving mechanism includes a power supply, a magnetic generating assembly and a magnetic sensing assembly, the base is provided with one of the magnetic generating assembly and the magnetic sensing assembly, the first focusing assembly is provided with the other of the magnetic generating assembly and the magnetic sensing assembly, and the power supply is electrically connected to at least one of the magnetic generating assembly and the magnetic sensing assembly. In the technical solution provided by the present invention, the moving group is driven by generating an Ampere force between the magnetic generating assembly and the magnetic sensing assembly when power is turned on, and when the moving group is acted upon by an external force, since the magnetic generating assembly and the magnetic sensing assembly are flexibly driven, there is no hard interference between the two, so as to solve the problem that the existing lens is easily damaged when subjected to external pressing force.

Description

Technical Field

[0001] The present invention relates to the field of mobile equipment, and in particular to a lens and a mobile terminal device. Background Art

[0002] When using a retractable mobile phone, the lens frame will retract when the phone's lens is zooming and focusing. The driving method for driving the lens to retract generally adopts a hard-driven pop-up driving method. When faced with a pressing problem, such as when the phone accidentally falls to the ground, if the protruding lens is hit, the extended part of the lens cannot be retracted in time, which will make the lens easily damaged. Summary of the invention

[0003] The main purpose of the present invention is to provide a lens and a mobile terminal device, aiming to solve the problem that the existing lens is easily damaged when subjected to external pressing force.

[0004] To achieve the above object, the present invention provides a lens for use in a mobile terminal device, wherein the lens comprises:

[0005] Base;

[0006] A moving group is disposed on the base, the moving group includes a first focusing component, and the first focusing component is movably disposed relative to the base; and

[0007] A magnetic driving mechanism, comprising a power source, a magnetic force generating component and a magnetic force sensing component;

[0008] Among them, the base is provided with one of the magnetic force generating component and the magnetic force sensing component, the first focusing component is provided with the other of the magnetic force generating component and the magnetic force sensing component, and the power supply is electrically connected to at least one of the magnetic force generating component and the magnetic force sensing component, so that when the power supply turns on the magnetic force generating component and / or the magnetic force sensing component, an Ampere force is generated between the magnetic force generating component and the magnetic sensing component to drive the first focusing component away from the base and move along the direction of light transmission.

[0009] Optionally, the mobile group further comprises a second focusing assembly, which is disposed on the base and is movably arranged relative to the first focusing assembly;

[0010] The first focusing component is provided with one of the magnetic force generating component and the magnetic force sensing component, and the second focusing component is provided with the other of the magnetic force generating component and the magnetic force sensing component. The power supply is electrically connected to at least one of the magnetic force generating component and the magnetic force sensing component, so that when the power supply turns on the magnetic force generating component and / or the magnetic force sensing component, an Ampere force is generated between the magnetic force generating component and the magnetic sensing component to drive the second focusing component away from the first focusing component and move along the direction of light transmission.

[0011] Optionally, the magnetic force generating component includes a first coil, and the power supply is electrically connected to the first coil, so that when the power supply is turned on to the first coil, the first coil generates a magnetic field;

[0012] The magnetic induction component includes a second coil.

[0013] Optionally, the magnetic force generating component includes a magnet, and the magnet is arranged on the base;

[0014] The magnetic induction component includes an induction coil.

[0015] Optionally, the base is cylindrical, the moving group is sleeved in the base, the magnetic force generating assembly further comprises a yoke arranged on the inner side wall of the base, the yoke is extended along the light transmission direction, and a channel is penetrated along the circumference of the base, and the yoke comprises a first side wall and a second side wall which are arranged opposite to each other in the inner and outer directions of the lens;

[0016] The magnet is arranged on the inner side of the first side wall, the induction coil is wound around the second side wall and is slidably arranged along the light transmission direction, and the induction coil is fixedly connected to the first focusing assembly.

[0017] Optionally, the first focusing assembly includes a first movable sleeve;

[0018] The bottom wall of the base is provided with a first extension portion protruding inwardly along the radial direction of the base, the first extension portion is arranged between the base and the first movable sleeve, the outer side wall of the first movable sleeve is provided with at least one first connection portion protruding outwardly along the radial direction of the first movable sleeve, and the first connection portion is provided with a guide structure;

[0019] The lens also includes at least one first guide column, each of which is extended along the light transmission direction, and one end of each of the first guide columns is fixedly connected to the first extension portion, and the other end of each of the first guide columns is slidably connected to the guide structure of the corresponding first connection portion.

[0020] Optionally, the guide structure is a first guide hole penetrated by each of the first connecting parts along the light transmission direction, and each of the first guide holes is respectively arranged corresponding to each of the first guide posts to allow the corresponding first guide posts to penetrate.

[0021] Optionally, the second focusing assembly includes a second movable sleeve;

[0022] A second extending portion is protruded inwardly along the radial direction of the first movable sleeve on the bottom wall of the first movable sleeve, the second extending portion is arranged between the first movable sleeve and the second movable sleeve, at least one second connecting portion is protruded outwardly along the radial direction of the second movable sleeve on the outer side wall of the second movable sleeve, and a second guide hole is penetrated through the second connecting portion along the light transmission direction;

[0023] The lens also includes at least one second guide column, each of which is extended along the light transmission direction, and one end of each of which is fixedly connected to the second extension portion, and the other end of each of which is slidably connected to the corresponding second guide hole.

[0024] Optionally, the lens also includes a controller, a first displacement sensor and a second displacement sensor, the first displacement sensor is used to detect a first displacement signal of the first focusing component, the second displacement sensor is used to detect a second displacement signal of the second focusing component, and the controller is electrically connected to the first displacement sensor, the second displacement sensor and the magnetic force generating component or the magnetic force sensing component to drive the corresponding magnetic force generating component or the magnetic force sensing component to shift according to the first displacement signal, and drive the corresponding magnetic force generating component or the magnetic force sensing component to shift according to the second displacement signal.

[0025] The present invention further provides a mobile terminal device, the mobile terminal device comprising the above-mentioned lens, the lens comprising:

[0026] Base;

[0027] A moving group is disposed on the base, the moving group includes a first focusing component, and the first focusing component is movably disposed relative to the base; and

[0028] A magnetic driving mechanism, comprising a power source, a magnetic force generating component and a magnetic force sensing component;

[0029] Among them, the base is provided with one of the magnetic force generating component and the magnetic force sensing component, the first focusing component is provided with the other of the magnetic force generating component and the magnetic force sensing component, and the power supply is electrically connected to at least one of the magnetic force generating component and the magnetic force sensing component, so that when the power supply turns on the magnetic force generating component and / or the magnetic force sensing component, an Ampere force is generated between the magnetic force generating component and the magnetic sensing component to drive the first focusing component away from the base and move along the direction of light transmission.

[0030] In the technical solution provided by the present invention, a magnetic driving mechanism is arranged between the moving group and the base, and the magnetic driving mechanism includes a power supply, a magnetic force generating component and a magnetic force sensing component. The power supply is electrically connected to at least one of the magnetic force generating component and the magnetic force sensing component, so that when the magnetic force generating component and the magnetic force sensing component are powered on, an Ampere force is generated between the magnetic force generating component and the magnetic force sensing component. The moving group is arranged on one of the magnetic force generating component and the magnetic force sensing component, so that the first focusing component is driven by the Ampere force, away from the base and moves along the light transmission direction. By setting the magnetic driving mechanism, when the power is on, an Ampere force is generated between the magnetic force generating component and the magnetic force sensing component, and the moving group is driven to move by the magnetic force generating component or the magnetic force sensing component. Because the magnetic force generating component and the magnetic force sensing component are driven by a flexible driving method, when the moving group is subjected to an external force, there will be no hard interference between the magnetic force generating component and the magnetic force sensing component, so as to solve the problem that the existing lens is easily damaged when subjected to external pressing force. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 A top view of an embodiment of a lens provided by the present invention;

[0033] Figure 2 for Figure 1 A front view of the lens in ;

[0034] Figure 3 for Figure 1 A schematic diagram of a portion of the structure of the lens in FIG.

[0035] Figure 4 for Figure 1Sectional view of AA in the middle;

[0036] Figure 5 for Figure 2 Cross-sectional view of BB.

[0037] Description of Figure Numbers:

[0038]

[0039]

[0040] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] When using a retractable mobile phone, the lens frame will retract when the phone's lens is zooming and focusing. The driving method for driving the lens to retract generally adopts a hard-driven pop-up driving method. When faced with a pressing problem, such as when the phone accidentally falls to the ground, if the protruding lens is hit, the extended part of the lens cannot be retracted in time, which will make the lens easily damaged.

[0045] In order to solve the above problems, the present invention provides a lens 100 for use in a mobile terminal device. Figures 1 to 5 This is a specific embodiment of the lens 100 provided by the present invention.

[0046] See also Figures 1 to 5 The lens 100 includes a base 1, a moving group 2 and a magnetic driving mechanism 3, wherein the moving group 2 is arranged on the base 1, the moving group 2 includes a first focusing component 21, and the first focusing component 21 is movably arranged relative to the base 1. The magnetic driving mechanism 3 includes a power supply, a magnetic force generating component and a magnetic force sensing component, wherein the base 1 is provided with one of the magnetic force generating component and the magnetic force sensing component, and the first focusing component 21 is provided with the other of the magnetic force generating component and the magnetic force sensing component, and the power supply is electrically connected to at least one of the magnetic force generating component and the magnetic force sensing component, so that when the power supply turns on the magnetic force generating component and / or the magnetic force sensing component, an Ampere force is generated between the magnetic force generating component and the magnetic sensing component to drive the first focusing component 21 to move away from the base 1 and along the light transmission direction.

[0047] In the technical solution provided by the present invention, a magnetic driving mechanism 3 is arranged between the mobile group 2 and the base 1, and the magnetic driving mechanism 3 includes a power supply, a magnetic force generating component and a magnetic force sensing component. The power supply is electrically connected to at least one of the magnetic force generating component and the magnetic force sensing component, so that when the magnetic force generating component and the magnetic force sensing component are powered on, an Ampere force is generated between the magnetic force generating component and the magnetic force sensing component. The mobile group 2 is arranged on one of the magnetic force generating component and the magnetic sensing component, so that the first focusing component 21 is driven by the Ampere force to move away from the base 1 and along the direction of light transmission. By setting up the magnetic driving mechanism 3, when power is turned on, Ampere force is generated between the magnetic generating component and the magnetic sensing component, and the moving group 2 will be driven to move by the magnetic generating component or the magnetic sensing component. Since the magnetic generating component and the magnetic sensing component are driven flexibly, when the moving group 2 is subjected to external force, there will be no hard interference between the magnetic generating component and the magnetic sensing component, so as to solve the problem that the existing lens is easily damaged when subjected to external pressure.

[0048] It should be noted that the magnetic force generating component generates a magnetic field. When the power supply is electrically connected to the magnetic force sensing component and the magnetic force sensing component is turned on, according to the left-hand rule, the magnetic force sensing component generates an Ampere force, which is the force exerted on a current-carrying conductor in a magnetic field, so that the magnetic force sensing component moves. The first focusing component 21 is arranged on the magnetic sensing component, so that the first focusing component 21 is driven to move away from the base 1 and move along the direction of light transmission. Similarly, the magnetic sensing component can also be a magnetic part that generates a magnetic field. When the power supply is electrically connected to the magnetic force generating component, according to the left-hand rule, the magnetic force generating component generates an Ampere force, so that the The magnetic force generating component moves, and the first focusing component 21 is arranged on the magnetic force generating component, so that the first focusing component 21 is driven to move away from the base 1 and move along the direction of light transmission; by the same token, when the power supply is electrically connected to the magnetic force generating component and the magnetic force sensing component at the same time, the magnetic force generating component generates a magnetic field due to power-on, and the magnetic force sensing component senses the magnetic field, and when the magnetic force sensing component is powered on, according to the left-hand rule, the magnetic force sensing component will generate Ampere force, and the first focusing component 21 is arranged on the magnetic force sensing component, so that the first focusing component 21 is driven to move away from the base 1 and move along the direction of light transmission.

[0049] In addition, it should be noted that focusing is also called light alignment and focusing, which refers to the process of adjusting the object distance and the position of the object through the lens focusing mechanism to make the image of the object clear. In this solution, the first focusing component 21 and the base 1 are relatively movable, which facilitates the formation of a clear image on the film and improves the optical performance.

[0050] Furthermore, in order to expand the focus adjustment range and obtain image information in a wider range, in the present embodiment, the mobile group 2 further includes a second focus component 22, and the second focus component 22 is disposed on the base 1 and is movably disposed relative to the first focus component 21. There are multiple ways to drive the second focus component 22, and a stepper motor and a lead screw can be used, or a motor and a gear rack can be used. In the present embodiment, the above-mentioned magnetic drive mechanism 3 can also be used. The first focus component 21 is provided with one of the magnetic force generating component and the magnetic force sensing component, and the second focus component 22 is provided with the other of the magnetic force generating component and the magnetic sensing component. The power supply is electrically connected to at least one of the magnetic force generating component and the magnetic sensing component, so that when the power supply turns on the magnetic force generating component and / or the magnetic sensing component, An Ampere force is generated between the magnetic force generating component and the magnetic force sensing component to drive the second focusing component 22 to move away from the first focusing component 21 and move along the light transmission direction. By setting a magnetic driving mechanism 3 between the first focusing component 21 and the second focusing component 22, when power is turned on, an Ampere force is generated between the magnetic force generating component and the magnetic sensing component, and the second focusing component 22 is driven to move by the magnetic force generating component or the magnetic sensing component. Since the magnetic force generating component and the magnetic sensing component are flexibly driven, when the second focusing component 22 is subjected to external force, there will be no hard interference between the magnetic force generating component and the magnetic sensing component. In this way, the base 1, the first focusing component 21 and the second focusing component 22 are all driven by a flexible Ampere force drive method, so that the telescopic lens 100 has a larger automatic flexible telescopic space when subjected to external pressing force.

[0051] Specifically, the magnetic force generating component can be in various forms. In the first embodiment, the magnetic force generating component includes a first coil. The power supply is electrically connected to the first coil, so that when the power supply is turned on to the first coil, the first coil generates a magnetic field. The magnetic force induction component includes a second coil. The power supply is electrically connected to the second coil. When the second coil is powered on, according to the left-hand rule, the second coil generates Ampere force. Of course, it can also be understood that when the power supply is electrically connected to the second coil, the second coil generates a magnetic field when powered on. When the power supply is electrically connected to the first coil and the first coil is turned on, the first coil generates Ampere force. Please refer to Figures 3 to 5In the second embodiment, the magnetic force generating component includes a magnet 31, and the magnet 31 is arranged on the base 1. The magnetic force sensing component includes an induction coil 32. The power supply is electrically connected to the induction coil 32. The magnet 31 generates a magnetic field. When the power supply and the induction coil 32 are connected, the induction coil 32 generates an Ampere force to drive the first focusing component 21 to move.

[0052] Further, when the first focusing assembly 21 is driven, in order to drive the first focusing assembly 21 to move faster and more stably, a plurality of the magnetic driving mechanisms 3 can be set, or when the moving group 2 includes the first focusing assembly 21 and the second focusing assembly 22, or even more focusing assemblies, a plurality of the magnetic driving mechanisms 3 can be set. However, due to the small size of the lens 100 itself, the repeated setting of the plurality of magnetic driving mechanisms 3 may cause the magnetic fields to interfere with each other. In order to prevent the magnetic field from affecting the plurality of magnetic driving mechanisms 3, please refer to Figure 4 In this embodiment, the magnetic force generating component includes a magnet 31, and the magnet 31 is arranged on the base 1. The magnetic force sensing component includes an induction coil 32. The base 1 is cylindrical, and the moving group 2 is sleeved in the base 1. The magnetic force generating component also includes a yoke 33 arranged on the inner wall of the base 1. The yoke 33 extends along the light transmission direction and has a channel circumferentially extending through the base 1. The yoke 33 includes a first side wall 331 and a second side wall 332 that are oppositely arranged in the inner and outer directions of the lens 100. The magnet 31 is arranged on the inner side of the first side wall 331. The induction coil 32 is wound around the second side wall 332 and is slidably arranged along the light transmission direction. The induction coil 32 is fixedly connected to the first focusing component 21. Since the function of the magnetic yoke 33 is to restrict the leakage magnetic field of the induction coil 32 from diffusing outward, after the induction coil 32 is energized, the magnetic field generated by the part of the coil located in the channel is confined in the channel, and the magnetic field of the magnet 31 is also confined in the channel. In this way, the multiple magnetic fields generated around the magnetic yoke 33 are basically confined in the channel, thereby reducing the mutual interference and influence between the multiple magnetic fields.

[0053] Further, in order to enable the first focusing assembly 21 to move more accurately along the light transmission direction without shaking or circumferential rotation, please refer to Figure 5In this embodiment, the first focusing assembly 21 includes a first movable sleeve 211, a first extension portion 1a is protruded inwardly along the radial direction of the base 1 on the bottom wall of the base 1, the first extension portion 1a is arranged between the base 1 and the first movable sleeve 211, at least one first connecting portion 211a is protruded outwardly along the radial direction of the first movable sleeve 211 on the outer wall of the first movable sleeve 211, and a guide structure is arranged on the first connecting portion 211a, and the lens 100 also includes at least one first guide column 212, each of which is extended along the light transmission direction, and one end of each of the first guide columns 212 is fixedly connected to the first extension portion 1a, and the other end of each of the first guide columns 212 is slidably connected to the guide structure of the corresponding first connecting portion 211a. By arranging the first connecting portion 211a on the outer periphery of the first movable sleeve 211, a plurality of first guide columns 212 can be arranged. The first extending portions 1a are arranged at intervals to save space, and reserve space for other structures to reduce the volume of the lens 100. There is no limit to the number of the first extension parts 1a. In the present embodiment, two first extension parts 1a are provided. The two first extension parts 1a are oppositely provided on the outer periphery of the first movable sleeve 211. Two first guide pillars 212 are provided correspondingly.

[0054] Specifically, the guide structure has various forms, for example, it can be by setting a slide groove on the first connecting portion 211a, or it can be by setting a tube sleeve on the first connecting portion 211a. In the present embodiment, the guide structure is a first guide hole penetrated through each of the first connecting portions 211a along the light transmission direction, and each of the first guide holes is respectively provided corresponding to each of the first guide columns 212 for the corresponding first guide columns 212 to be inserted, and each of the first guide holes on the first movable sleeve 211 slides along the corresponding first guide columns 212, so that the first movable sleeve 211 moves along the light transmission direction.

[0055] Specifically, in order to enable the second focusing assembly 22 to move more accurately along the light transmission direction without shaking or circumferential rotation, please refer to Figure 4The second focusing assembly 22 includes a second movable sleeve 221, a bottom wall of the first movable sleeve 211 is provided with a second extension portion 211b protruding inwardly along the radial direction of the first movable sleeve 211, and the second extension portion 211b is arranged between the first movable sleeve 211 and the second movable sleeve 221, and an outer wall of the second movable sleeve 221 is provided with at least one second connecting portion 221a protruding outwardly along the radial direction of the second movable sleeve 221, and the second connecting portion 221a is penetrated with a second guide hole along the light transmission direction, and the lens 100 also includes at least one second guide column 222, each of the second guide columns 222 is extended along the light transmission direction, and one end of each of the second guide columns 222 is fixedly connected to the second extension portion 211b, and the other end of each of the second guide columns 222 is slidably connected to the corresponding second guide hole, and each of the second guide holes on the second movable sleeve 221 slides along the corresponding second guide columns 222, so that the second movable sleeve 221 moves along the light transmission direction.

[0056] Furthermore, in order to ensure that the driving accuracy of the first focusing component 21 and the second focusing component 22 can be sufficiently accurate, in the present embodiment, the lens 100 further includes a controller, a first displacement sensor and a second displacement sensor. The first displacement sensor is used to detect a first displacement signal of the first focusing component 21, and the second displacement sensor is used to detect a second displacement signal of the second focusing component 22. The controller is electrically connected to the first displacement sensor, the second displacement sensor and the magnetic force generating component or the magnetic force sensing component to drive the corresponding magnetic force generating component or the magnetic force sensing component to shift according to the first displacement signal, and to drive the corresponding magnetic force generating component or the magnetic force sensing component to shift according to the second displacement signal. Different types of sensors have different accuracies, such as millimeter level, micrometer level, or even nanometer level. Suitable sensors can be selected according to actual needs to achieve precise adjustment and driving.

[0057] In addition, to achieve the above purpose, the present invention further proposes a mobile terminal device, which can be a mobile phone or an iPad, and is not limited here. The mobile terminal device includes the lens 100 described in the above technical solution. It should be noted that the detailed structure of the lens 100 of the mobile terminal device can refer to the embodiment of the lens 100, which will not be repeated here; since the lens 100 is used in the mobile terminal device of the present invention, the embodiment of the mobile terminal device of the present invention includes all technical solutions of all embodiments of the lens 100, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0058] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lens for a mobile terminal device, characterized in that: The lens includes: Base; A moving group is disposed on the base, the moving group includes a first focusing component, and the first focusing component is movably disposed relative to the base; and A magnetic driving mechanism, comprising a power source, a magnetic force generating component and a magnetic force sensing component; The base is provided with one of the magnetic force generating component and the magnetic force sensing component, the first focusing component is provided with the other of the magnetic force generating component and the magnetic force sensing component, and the power supply is electrically connected to at least one of the magnetic force generating component and the magnetic force sensing component, so that when the power supply turns on the magnetic force generating component and / or the magnetic force sensing component, an Ampere force is generated between the magnetic force generating component and the magnetic force sensing component to drive the first focusing component to move away from the base and along the light transmission direction; The mobile group further includes a second focusing assembly, which is disposed on the base and is movably disposed relative to the first focusing assembly; The first focusing component is provided with one of the magnetic force generating component and the magnetic force sensing component, the second focusing component is provided with the other of the magnetic force generating component and the magnetic force sensing component, the power supply is electrically connected to at least one of the magnetic force generating component and the magnetic force sensing component, so that when the power supply turns on the magnetic force generating component and / or the magnetic force sensing component, an Ampere force is generated between the magnetic force generating component and the magnetic force sensing component, so as to drive the second focusing component to move away from the first focusing component and move along the light transmission direction; The magnetic force generating assembly includes a magnet, and the magnet is arranged on the base; The magnetic induction component includes an induction coil; The base is cylindrical, the moving group is sleeved in the base, the magnetic force generating assembly further comprises a yoke arranged on the inner side wall of the base, the yoke is extended along the light transmission direction, and a channel is penetrated along the circumference of the base, the yoke comprises a first side wall and a second side wall which are arranged opposite to each other in the inner and outer directions of the lens; The magnet is arranged on the inner side of the first side wall, the induction coil is wound around the second side wall and is slidably arranged along the light transmission direction, and the induction coil is fixedly connected to the first focusing assembly.

2. The lens according to claim 1, wherein: The magnetic force generating component includes a first coil, and the power supply is electrically connected to the first coil, so that when the power supply is turned on to the first coil, the first coil generates a magnetic field; The magnetic induction component includes a second coil.

3. The lens according to claim 1, wherein: The first focusing assembly includes a first movable sleeve; The bottom wall of the base is provided with a first extension portion protruding inwardly along the radial direction of the base, the first extension portion is arranged between the base and the first movable sleeve, the outer side wall of the first movable sleeve is provided with at least one first connection portion protruding outwardly along the radial direction of the first movable sleeve, and the first connection portion is provided with a guide structure; The lens also includes at least one first guide column, each of which is extended along the light transmission direction, and one end of each of the first guide columns is fixedly connected to the first extension portion, and the other end of each of the first guide columns is slidably connected to the guide structure of the corresponding first connection portion.

4. The lens according to claim 3, characterized in that: The guide structure is a first guide hole formed in each of the first connecting parts along the light transmission direction, and each of the first guide holes is formed corresponding to each of the first guide posts to allow the corresponding first guide posts to pass through.

5. The lens according to claim 3, characterized in that: The second focusing assembly includes a second movable sleeve; A second extending portion is protruded inwardly along the radial direction of the first movable sleeve on the bottom wall of the first movable sleeve, the second extending portion is arranged between the first movable sleeve and the second movable sleeve, at least one second connecting portion is protruded outwardly along the radial direction of the second movable sleeve on the outer side wall of the second movable sleeve, and a second guide hole is penetrated through the second connecting portion along the light transmission direction; The lens also includes at least one second guide column, each of which is extended along the light transmission direction, and one end of each of which is fixedly connected to the second extension portion, and the other end of each of which is slidably connected to the corresponding second guide hole.

6. The lens according to claim 1, wherein: The lens also includes a controller, a first displacement sensor and a second displacement sensor, wherein the first displacement sensor is used to detect a first displacement signal of the first focusing component, and the second displacement sensor is used to detect a second displacement signal of the second focusing component. The controller is electrically connected to the first displacement sensor, the second displacement sensor and the magnetic force generating component or the magnetic force sensing component to drive the corresponding magnetic force generating component or the magnetic force sensing component to shift according to the first displacement signal, and to drive the corresponding magnetic force generating component or the magnetic force sensing component to shift according to the second displacement signal.

7. A mobile terminal device, characterized in that: Comprising the lens as claimed in any one of claims 1 to 6.

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