Lens drive mechanism
By designing a lens drive mechanism and utilizing piezoelectric and electromagnetic drive structures, a multi-lens zoom effect was achieved in a slim and lightweight design, solving the problem that existing lens drive mechanisms are unable to achieve different zoom magnifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河南皓泽电子股份有限公司昆山分公司
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-26
AI Technical Summary
In electronic devices, existing technologies struggle to meet the diverse photography needs of various scenarios while simultaneously achieving a slim and lightweight design for the lens drive mechanism.
Design a lens driving mechanism that uses the movement of a base, a first carrier, and a second carrier to drive the first lens and the second lens respectively using a piezoelectric mechanism and an electromagnetic drive structure, thereby achieving changes in the distance between the three lenses and creating zoom effects of different magnifications.
It achieves zoom effects of different magnifications by moving multiple lenses within a slim and lightweight lens drive mechanism, avoiding interference between drive mechanisms.
Smart Images

Figure CN224287227U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of optical element driving technology, specifically relating to a lens driving mechanism. Background Technology
[0002] In recent years, with the development of technology, many electronic devices now have the function of taking pictures or recording videos. The use of these electronic devices is becoming more and more common, and they are developing towards a more convenient and thinner design to provide users with more choices.
[0003] In practice, to adapt to various shooting scenarios, the lens needs constant focusing. Current technology typically uses a lens drive mechanism to move the lens along the optical axis to adjust the focal length. However, electronic devices usually only have one lens. Therefore, achieving different zoom levels while maintaining a slim and lightweight lens drive mechanism is a crucial issue. Utility Model Content
[0004] The present invention addresses the aforementioned technical problems by providing a lens driving mechanism.
[0005] A lens driving mechanism, the lens driving mechanism comprising:
[0006] A base, wherein a first connecting part for mounting a first lens is provided on the base;
[0007] The first carrier is movable along the optical axis direction on the base at the rear end of the first connecting part under the drive of the first driving mechanism, and the first carrier is provided with a second connecting part for mounting the second lens.
[0008] The second carrier can move along the optical axis direction on the first carrier at the rear end of the second connecting part under the drive of the second driving mechanism, and the second carrier is provided with a third connecting part for mounting a third lens.
[0009] Optionally, the two opposite inner sidewalls at the front end of the base are respectively provided with a first lens mounting groove as the first connecting part.
[0010] Optionally, the two opposite inner sidewalls at the front end of the first carrier are respectively provided with second lens mounting slots as the second connecting parts.
[0011] Optionally, the two opposite inner sidewalls of the second carrier are respectively provided with a third lens mounting groove as the third connecting part.
[0012] Optionally, the base is provided with a first carrier mounting groove, the first carrier mounting groove is located at the rear end of the first connecting part, the first carrier is installed in the first carrier mounting groove, and the first carrier can slide in the first carrier mounting groove.
[0013] Optionally, the first carrier is provided with a second carrier mounting groove, the second carrier mounting groove is located at the rear end of the second connecting part, the second carrier is installed in the second carrier mounting groove, and the second carrier can slide in the second carrier mounting groove.
[0014] Optionally, a ball bearing is provided at the bottom of the second carrier mounting groove, and a ball bearing guide groove is provided at the bottom of the second carrier. After the second carrier is installed into the second carrier mounting groove, the top of the ball bearing abuts against the ball bearing guide groove.
[0015] Optionally, the bottom end of the first carrier is provided with a metal built-in base plate, and the bottom end of the second carrier is provided with an adsorption magnet, wherein the adsorption magnet and the metal built-in base plate are arranged opposite to each other and adsorb each other.
[0016] Optionally, the first drive mechanism and the second drive mechanism are located on the same side.
[0017] Optionally, the first drive mechanism is a piezoelectric mechanism.
[0018] Optionally, the piezoelectric mechanism includes a piezoelectric block and a friction rod. The piezoelectric block is disposed on one side of the base and electrically connected to the base's built-in circuitry. One end of the friction rod is connected to the piezoelectric block, and the friction rod abuts against the first carrier and can drive the first carrier to move along the optical axis.
[0019] Optionally, a V-shaped groove with an outward opening is provided on one side of the first carrier, the front side of the V-shaped groove is an open structure, a friction rod mounting hole is provided on the first carrier behind the V-shaped groove, a clamping plate mounting hole is provided above the V-shaped groove, and the other end of the friction rod is inserted into the friction rod mounting hole.
[0020] The piezoelectric mechanism further includes an abutment plate and a clamping plate with elastic properties. The abutment plate is disposed in the V-groove and abuts against the inner side of the middle portion of the friction rod. The inner side wall of the clamping plate abuts against the outer side of the middle portion of the friction rod. The inner side wall of the clamping plate is inserted into the clamping plate mounting hole. The friction rod and the first carrier are tightly connected by the clamping plate and the abutment plate, so that after the piezoelectric block is energized, the friction rod drives the first carrier to move along the optical axis.
[0021] Optionally, the clamp is a V-shaped clamp or an U-shaped clamp.
[0022] Optionally, the piezoelectric mechanism further includes a counterweight connected to the piezoelectric block;
[0023] A piezoelectric mechanism mounting groove is provided on one side of the base, and the piezoelectric block and the counterweight block are embedded in the piezoelectric mechanism mounting groove.
[0024] Optionally, a guide rod is provided between the other side of the base and the first carrier. The length direction of the guide rod is parallel to the optical axis direction. The first carrier is inserted into the guide rod and can move along the guide rod.
[0025] Optionally, the second drive mechanism adopts an electromagnetic drive structure.
[0026] Optionally, the electromagnetic drive structure includes a coil disposed on the inner wall of one side of the base and a magnet disposed on one side of the second carrier. The coil is electrically connected to the base's built-in circuitry. The coil and the magnet are disposed opposite to each other. The second carrier is driven to move along the optical axis by the cooperation of the coil and the magnet.
[0027] Optionally, a position sensor is provided on the inner wall of one side of the base. The position sensor is electrically connected to the base's built-in circuitry. The position sensor is positioned opposite to the magnet. The position sensor and the magnet work together to monitor the movement position of the second carrier.
[0028] Optionally, the lens driving mechanism further includes:
[0029] The outer shell is detachably connected to the base to form a receiving space, and the first connecting part, the first carrier and the second carrier are all located in the receiving space.
[0030] Beneficial effects: This utility model has at least one or more of the following advantages:
[0031] 1. The first connecting part of this utility model is used to install the first lens, the second connecting part is used to install the second lens, and the third connecting part is used to install the third lens. The distance between the three lenses changes by moving the first carrier and the second carrier, thereby forming zoom effects of different magnifications.
[0032] 2. Since the second lens and the third lens of this utility model are located on the first carrier and the second carrier respectively, and the first driving mechanism driving the first carrier adopts a piezoelectric mechanism and the second driving mechanism driving the second carrier adopts an electromagnetic driving structure, when the two driving mechanisms are set on the same side, there is no interference between them. Attached Figure Description
[0033] Figure 1This is a front view of the present invention;
[0034] Figure 2 for Figure 1 AA section view;
[0035] Figure 3 for Figure 1 Top view;
[0036] Figure 4 for Figure 3 BB section view;
[0037] Figure 5 for Figure 1 Exploded view;
[0038] Figure 6 for Figure 5 Further exploded view;
[0039] Figure 7 for Figure 6 Further exploded view;
[0040] Figure 8 for Figure 7 A further exploded view of the local area;
[0041] Figure 9 This is a diagram showing the positional relationship between the base and the first drive mechanism of this utility model;
[0042] Figure 10 This diagram illustrates the positional relationship between the first carrier, the first driving mechanism, the second carrier, and the second driving mechanism of this utility model.
[0043] Figure 11 for Figure 10 Further exploded view;
[0044] Figure 12 This is a diagram showing the positional relationship between the first carrier and the first driving mechanism of this utility model;
[0045] Figure 13 This is a schematic diagram of the structure of the second carrier of this utility model. Detailed Implementation
[0046] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are only for illustrating the essential spirit of the technical solution of the present invention.
[0047] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
[0048] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.
[0049] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.
[0050] Reference Figure 1 Figure 13 This utility model provides a lens driving mechanism, which includes a housing 10, a base 20, a first carrier 30, a second carrier 40, a first driving mechanism 50, and a second driving mechanism 60.
[0051] The base 20 is provided with a first connecting portion 21 for mounting the first lens 71. The first carrier 30 is provided with a second connecting portion 31 for mounting the second lens 72. The second carrier 40 is provided with a third connecting portion 41 for mounting the third lens 73. The first connecting portion 21, the second connecting portion 31 and the third connecting portion 41 are arranged side by side along the optical axis, so that the first lens 71, the second lens 72 and the third lens 73 are arranged side by side along the optical axis after installation.
[0052] The first carrier 30 is located inside the base 20 and at the rear end of the first connecting part 21. The first driving mechanism 50 drives the first carrier 30 to move along the optical axis on the base 20 at the rear end of the first connecting part 21, thereby driving the second lens 72 mounted on the first carrier 30 to move along the optical axis.
[0053] The second carrier 40 is located inside the first carrier 30 and at the rear end of the second connecting part 31. Driven by the second driving mechanism 60, the second carrier 40 moves along the optical axis on the first carrier 30 at the rear end of the second connecting part 31, thereby driving the third lens 73 mounted on the second carrier 40 to move along the optical axis.
[0054] This invention achieves the change of distance between the three lenses by moving the first carrier 30 and the second carrier 40, thereby forming zoom effects of different magnifications.
[0055] The outer shell 10 and the base 20 are detachably connected to form a receiving space, and the first connecting part 21, the first carrier 30, the second carrier 40, the first lens 71, the second lens 72 and the third lens 73 are all located in the receiving space.
[0056] Of course, the outer shell 10, the base 20, the first carrier 30 and the second carrier 40 are all provided with light-transmitting holes along the optical axis. The first lens 71, the second lens 72 and the third lens 73 are coaxially arranged with the light-transmitting holes so that light passes through the first lens 71, the second lens 72 and the third lens 73 in sequence from the front light-transmitting hole and then exits from the rear light-transmitting hole.
[0057] In one embodiment, reference is made to Figures 5 to 9 The two opposite inner sidewalls at the front end of the base 20 are respectively provided with first lens mounting slots as first connecting parts 21.
[0058] In specific implementation, the two opposite inner sidewalls of the first lens 71 are respectively provided with first buckles, and the first lens 71 is snapped into the front end of the base 20 by snapping the first buckles into the first lens snapping slot.
[0059] Of course, the fixing method between the first lens 71 and the base 20 can also adopt other detachable methods in the prior art.
[0060] In one embodiment, reference is made to Figures 5 to 8 , Figures 10 to 12 The two opposite inner sidewalls at the front end of the first carrier 30 are respectively provided with second lens mounting slots as second connecting parts 31.
[0061] In specific implementation, the two opposite inner sidewalls of the second lens 72 are respectively provided with second buckles, and the second lens 72 is snapped into the front end of the first carrier 30 by snapping the second buckles into the second lens snapping slot.
[0062] Of course, the second lens 72 can also be fixed to the first carrier 30 using other detachable methods in the prior art.
[0063] In one embodiment, reference is made to Figures 5 to 8 , Figure 10 and Figure 11 The two opposite inner sidewalls of the second carrier 40 are respectively provided with third lens mounting slots as third connecting parts 41.
[0064] In practice, the two opposite inner walls of the third lens 73 are respectively provided with third buckles, and the third lens 73 is installed in the front end of the second carrier 40 by engaging the third lens mounting slot with the third buckles.
[0065] Of course, the fixing method between the third lens 73 and the second carrier 40 can also adopt other detachable methods in the prior art.
[0066] In one embodiment, reference is made to Figures 6 to 8 The base 20 is provided with a first carrier mounting groove 22, which is located at the rear end of the first connecting part 21. A first carrier 30 is installed in the first carrier mounting groove 22, and the first carrier 30 can slide in the first carrier mounting groove 22.
[0067] In one embodiment, reference is made to Figure 12 The first carrier 30 is provided with a second carrier mounting groove 32, which is located at the rear end of the second connecting part 31. The second carrier 40 is installed in the second carrier mounting groove 32 and can slide in the second carrier mounting groove 32.
[0068] In one embodiment, reference is made to Figure 12 A ball bearing 33 is provided at the bottom of the second carrier mounting groove 32. (Refer to...) Figure 13 The bottom end of the second carrier 40 is provided with a ball guide groove 43. After the second carrier 40 is installed into the second carrier mounting groove 32, the top of the ball 33 abuts against the ball guide groove 43. The cooperation between the ball 33 and the ball guide groove 43 achieves the guiding effect and reduces the friction effect when the second carrier 40 moves along the optical axis.
[0069] Specifically, one or more ball bearings 33 along the optical axis can be respectively provided on one or both sides of the bottom end of the second carrier mounting groove 32. One or more ball bearing guide grooves 43 can be respectively provided on one or both sides of the bottom end of the second carrier 40. When there are multiple ball bearings 33 on the same side of the bottom end of the second carrier mounting groove 32, the corresponding ball bearing guide groove 43 provided on the bottom end of the second carrier 40 is an elongated groove to abut against the multiple ball bearings 33.
[0070] In one embodiment, the ball guide groove 43 is either a planar ball guide groove or a V-shaped ball guide groove. When there are multiple ball guide grooves 43, all of the multiple ball guide grooves 43 can be either planar ball guide grooves or V-shaped ball guide grooves, or at least one of the multiple ball guide grooves 43 can be a planar ball guide groove and at least another can be a V-shaped ball guide groove. That is, the multiple ball guide grooves 43 can be a combination of one or more of planar ball guide grooves and V-shaped ball guide grooves.
[0071] In one embodiment, reference is made to Figure 12The first carrier 30 has a metal internal base plate 34 at its bottom end. (Refer to...) Figure 13 The bottom end of the second carrier 40 is provided with an adsorption magnet 44, which is positioned opposite to and adsorbs onto the metal inner base plate 34. The adsorption force generated between the adsorption magnet 44 and the metal inner base plate 34 ensures that the bottom end of the second carrier 40 can stably contact the ball 33, preventing the second carrier 40 from detaching from the first carrier 30.
[0072] In one embodiment, the first drive mechanism 50 and the second drive mechanism 60 are located on the same side.
[0073] In one embodiment, the first drive mechanism 50 employs a piezoelectric mechanism.
[0074] In one embodiment, reference is made to Figures 8 to 12 The piezoelectric mechanism includes a piezoelectric block 51 and a friction rod 52. The piezoelectric block 51 is disposed on one side of the base 20 and electrically connected to the built-in circuitry within the base 20, so that the piezoelectric block 51 is powered through the built-in circuitry. One end of the friction rod 52 is connected to the piezoelectric block 51, and the friction rod 52 abuts against the first carrier 30 and can drive the first carrier 30 to move along the optical axis.
[0075] In this embodiment, a piezoelectric mechanism is used between the base 20 and the first carrier 30. The piezoelectric block 51 of the piezoelectric mechanism is energized to drive the friction rod 52 to move along the optical axis, thereby driving the first carrier 30 and the second carrier 40 disposed therein to move synchronously relative to the base 20 along the optical axis, and finally realizing the adjustment of the distance between the second lens 72 and the third lens 73 relative to the first lens 71.
[0076] In one embodiment, reference is made to Figure 11 The first carrier 30 has a V-shaped groove 35 that opens outward on one side. The front side of the V-shaped groove 35 is open. A friction rod mounting hole 36 is provided on the first carrier 30 behind the V-shaped groove 35. A clamping plate mounting hole 37 is provided above the V-shaped groove 35. The other end of the friction rod 52 is inserted into the friction rod mounting hole 36.
[0077] Reference Figures 10 to 12 The piezoelectric mechanism also includes an elastic abutment plate 53 and a clamping plate 54. The abutment plate 53 is disposed in the V-groove 35 and abuts against the inner side of the middle portion of the friction rod 52. The outer inner wall of the clamping plate 54 abuts against the outer side of the middle portion of the friction rod 52, and the inner side wall of the clamping plate 54 is inserted into the clamping plate mounting hole 37. The clamping plate 54 and the abutment plate 53 tightly abut against and connect the friction rod 52 and the first carrier 30, so that after the piezoelectric block 51 is energized, the friction rod 52 drives the first carrier 30 to move along the optical axis.
[0078] In this embodiment, the elasticity of the clamping plate and the abutment plate is used to achieve a tight connection between the friction rod and the first carrier. When the piezoelectric block is energized, the friction rod will drive the first carrier to slide, causing the second lens and the third lens to move together.
[0079] In one embodiment, the abutment plate 53 is a V-shaped plate such that its inner side fits the V-groove 35 and its outer side fits the inner side of the middle of the friction rod 52.
[0080] In one embodiment, the clamp 54 is a quasi-inverted V-shaped clamp 54 or a quasi-inverted U-shaped clamp 54.
[0081] In one embodiment, the piezoelectric mechanism further includes a counterweight 55 connected to the piezoelectric block 51.
[0082] Reference Figures 6 to 8 A piezoelectric mechanism mounting groove 23 is provided on one side of the base 20, and the piezoelectric block 51 and the counterweight block 55 are embedded in the piezoelectric mechanism mounting groove 23.
[0083] In one embodiment, reference is made to Figures 5 to 8 , Figures 10 to 12 A guide rod 80 is provided between the other side of the base 20 and the first carrier 30. The length direction of the guide rod 80 is parallel to the optical axis. The first carrier 30 is inserted into the guide rod 80 and can move along the guide rod 80. The guide rod 80 can guide the movement direction of the first carrier 30, causing the first carrier 30 to move along the optical axis.
[0084] Specifically, refer to Figure 9 A guide hole 24 can be provided on the base 20 in a direction parallel to the optical axis, and a guide rod passes through and is connected to the guide hole 24. (Refer to...) Figure 8 A guide hole 38 can be provided on the first carrier 30 in a direction parallel to the optical axis. The guide rod 80 passes through the guide hole 38 and allows the first carrier 30 to move along the optical axis with the guide rod 80 as a guide.
[0085] In one embodiment, the second drive mechanism 60 adopts an electromagnetic drive structure.
[0086] In one embodiment, reference is made to Figure 8 , Figure 10 and Figure 11The electromagnetic drive structure includes a coil 61 disposed on the inner wall of one side of the base 20 and a magnet 62 disposed on one side of the second carrier 40. The coil 61 is electrically connected to the built-in circuitry within the base 20, and the coil 61 is powered through the built-in circuitry. The coil 61 and the magnet 62 are arranged opposite to each other. The cooperation between the coil 61 and the magnet 62 drives the second carrier 40 to move along the optical axis, thereby causing the third lens 73 disposed on the second carrier 40 to move independently along the optical axis, ultimately adjusting the distance between the third lens 73 and the first lens 71 and the second lens 72.
[0087] In one embodiment, a position sensor is disposed on the inner wall of one side of the base 20. The position sensor is electrically connected to the built-in circuitry within the base 20, and the power supply to the position sensor is provided through the built-in circuitry. The position sensor is disposed opposite to the magnet 62, and the movement position of the second carrier 40 is monitored by the cooperation between the position sensor and the magnet 62.
[0088] The position sensor is preferably located in the middle of the coil 61.
[0089] The preferred embodiments of this utility model have been described in detail above. However, it should be understood that after reading the above teachings, those skilled in the art can make various alterations or modifications to this utility model. These equivalent forms also fall within the scope defined by the appended claims.
Claims
1. A lens driving mechanism, characterized in that, The lens driving mechanism includes: A base, wherein a first connecting part for mounting a first lens is provided on the base; The first carrier is movable along the optical axis direction on the base at the rear end of the first connecting part under the drive of the first driving mechanism, and the first carrier is provided with a second connecting part for mounting the second lens. The second carrier can move along the optical axis direction on the first carrier at the rear end of the second connecting part under the drive of the second driving mechanism, and the second carrier is provided with a third connecting part for mounting a third lens.
2. The lens driving mechanism as described in claim 1, characterized in that, The two opposite inner sidewalls at the front end of the base are respectively provided with a first lens mounting groove as the first connecting part; And / or, the two opposite inner sidewalls at the front end of the first carrier are respectively provided with second lens mounting slots as the second connecting parts; And / or, the two opposite inner sidewalls of the second carrier are respectively provided with a third lens mounting groove as the third connecting part; And / or, the base is provided with a first carrier mounting groove, the first carrier mounting groove is located at the rear end of the first connecting part, the first carrier is installed in the first carrier mounting groove, and the first carrier can slide in the first carrier mounting groove; And / or, the first carrier is provided with a second carrier mounting groove, the second carrier mounting groove is located at the rear end of the second connecting part, the second carrier is installed in the second carrier mounting groove, and the second carrier can slide in the second carrier mounting groove.
3. The lens driving mechanism as described in claim 1, characterized in that, The bottom end of the second carrier mounting groove is provided with a ball bearing, and the bottom end of the second carrier is provided with a ball bearing guide groove. After the second carrier is installed into the second carrier mounting groove, the top end of the ball bearing abuts against the ball bearing guide groove. And / or, the bottom end of the first carrier is provided with a metal built-in base plate, and the bottom end of the second carrier is provided with an adsorption magnet, wherein the adsorption magnet is arranged opposite to the metal built-in base plate and adsorbs onto each other.
4. The lens driving mechanism as described in claim 1, characterized in that, The first drive mechanism and the second drive mechanism are located on the same side; And / or, the first drive mechanism employs a piezoelectric mechanism; And / or, the second drive mechanism adopts an electromagnetic drive structure; And / or, a guide rod is provided between the other side of the base and the first carrier, the length direction of the guide rod is parallel to the optical axis direction, and the first carrier is inserted into the guide rod and can move along the guide rod.
5. The lens driving mechanism as described in any one of claims 1 to 4, characterized in that, The first driving mechanism adopts a piezoelectric mechanism; The piezoelectric mechanism includes a piezoelectric block and a friction rod. The piezoelectric block is disposed on one side of the base and is electrically connected to the base's built-in circuitry. One end of the friction rod is connected to the piezoelectric block. The friction rod abuts against the first carrier and can drive the first carrier to move along the optical axis.
6. The lens driving mechanism as described in claim 5, characterized in that, The first carrier has a V-shaped groove that opens outward on one side. The front side of the V-shaped groove is open. A friction rod mounting hole is provided on the first carrier behind the V-shaped groove. A clamping plate mounting hole is provided above the V-shaped groove. The other end of the friction rod is inserted into the friction rod mounting hole. The piezoelectric mechanism also includes an elastic abutment plate and a clamping plate. The abutment plate is disposed in the V-shaped groove and abuts against the inner side of the middle of the friction rod. The outer inner wall of the clamping plate abuts against the outer side of the middle of the friction rod. The inner side wall of the clamping plate is inserted into the clamping plate mounting hole. The friction rod and the first carrier are tightly connected by the clamping plate and the abutment plate, so that when the piezoelectric block is energized, the friction rod drives the first carrier to move along the optical axis. And / or, the piezoelectric mechanism further includes a counterweight block connected to the piezoelectric block; a piezoelectric mechanism mounting groove is provided on one side of the base, and the piezoelectric block and the counterweight block are embedded in the piezoelectric mechanism mounting groove.
7. The lens driving mechanism as described in claim 6, characterized in that, The clamps are either inverted V-shaped or inverted U-shaped.
8. The lens driving mechanism as described in any one of claims 1 to 4, characterized in that, The second drive mechanism adopts an electromagnetic drive structure; The electromagnetic drive structure includes a coil disposed on the inner wall of one side of the base and a magnet disposed on one side of the second carrier. The coil is electrically connected to the base's built-in circuitry. The coil and the magnet are disposed opposite to each other. The second carrier is driven to move along the optical axis by the cooperation of the coil and the magnet.
9. The lens driving mechanism as described in claim 8, characterized in that, A position sensor is provided on the inner wall of one side of the base. The position sensor is electrically connected to the built-in circuit inside the base. The position sensor is positioned opposite to the magnet. The position sensor and the magnet work together to monitor the movement position of the second carrier.
10. The lens driving mechanism as described in claim 1, characterized in that, The lens driving mechanism also includes: The outer shell is detachably connected to the base to form a receiving space, and the first connecting part, the first carrier and the second carrier are all located in the receiving space.