Periscope lens driving device

Abstract

The present invention discloses a periscope lens driving device, which includes a base, a first carrier, a second carrier and a third carrier. The base is provided with a hollow chamber, and the first carrier, the second carrier and the third carrier are arranged in the hollow chamber. Among them, the first carrier is used to mount a prism and cooperate with the second carrier to drive the prism to move in different directions under the drive of a first driving mechanism and a second driving mechanism. The third carrier is used to mount a lens and drive the lens to move along the optical axis direction of the lens under the drive of a third driving mechanism. The first carrier, the second carrier and the third carrier combine the lens module and the prism module of the periscope lens driving device in the same device, thereby realizing the anti-shake function and zoom function of the periscope lens driving device, and can make the structure of the periscope lens driving device simple, reduce the manufacturing process and reduce the cost.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging, and particularly to a periscope lens driving device. Background Art

[0002] The periscope lens structure generally includes two parts, namely a lens part and a prism part. The prism part is arranged at the front end of the periscope part, and an imaging chip is arranged at the rear end of the lens part. Light enters the lens part after being reflected by the prism part. In the prior art, the lens part and the prism part are two independent devices, and the production process is complex. Summary of the Invention

[0003] The purpose of the present invention is to provide a periscope lens driving device to solve the problems existing in the above-mentioned prior art.

[0004] To solve the above problems, according to the first aspect of the present invention, a periscope lens driving device is provided. The periscope lens driving device includes a base, a first carrier, a second carrier, and a third carrier. The base is provided with a hollow chamber, and the first carrier, the second carrier, and the third carrier are arranged in the hollow chamber. Wherein, the first carrier is used for mounting a prism and cooperating with the second carrier to drive the prism to move in different directions under the drive of a first driving mechanism and a second driving mechanism, and the third carrier is used for mounting a lens and driving the lens to move along the optical axis direction of the lens under the drive of a third driving mechanism.

[0005] Preferably, a light exit is provided on an end wall of the base, and the third carrier is arranged inside the light exit. Light enters the upper surface of the prism from above the base in a direction perpendicular to the base and leaves the light exit through the lens after being deflected by the prism.

[0006] Preferably, the second carrier is arranged at the bottom of the first carrier, and the third carrier and the first carrier are arranged side by side in the hollow chamber of the base.

[0007] Preferably, the first driving mechanism, the second driving mechanism, and the third driving mechanism are electromagnetic driving mechanisms. Wherein, when the second driving mechanism drives the second carrier to move, the first carrier and the second carrier move synchronously, and when the first driving mechanism drives the first carrier to move, the first carrier moves relative to the second carrier.

[0008] Preferably, an installation notch is provided at the bottom of the first carrier, the second carrier is disposed within the installation notch to form the bottom of the first carrier, two second movable balls and one second positioning ball are provided at the bottom of the second carrier, and the two second movable balls and the one second positioning ball form a triangular structure and cooperate with a second movable ball groove and a second positioning ball groove on the bottom surface of the hollow chamber. When the second carrier moves driven by a second driving mechanism, the second carrier rotates with the second positioning ball as a fulcrum.

[0009] Preferably, an installation groove is provided within the installation notch of the first carrier, and the second carrier is provided with an installation protrusion. The second carrier is movably connected to the first carrier through the cooperation between the installation protrusion and the installation groove.

[0010] Preferably, a first movable ball is provided at the bottom of the first carrier, and the second carrier is provided with a first movable ball groove that cooperates with the first movable ball. When the first driving mechanism drives the first carrier to move, the first carrier moves relative to the second carrier with the first movable ball as a fulcrum;

[0011] Preferably, a second adsorption magnet is provided at the bottom end of the second carrier, and a second built-in metal is provided within the second carrier and the base. An adsorption force is generated through the interaction between the second adsorption magnet and the second built-in metal within the base and the second carrier to strengthen the connection between the second carrier and the base.

[0012] Preferably, a first adsorption magnet and a first built-in metal that cooperate with each other are respectively provided at the bottom end of the first carrier and within the second carrier, so as to form an adsorption force between the first carrier and the second carrier to strengthen the connection between the first carrier and the second carrier;

[0013] Preferably, one first movable ball is provided at each of the two ends of the bottom of the first carrier, and the first adsorption magnet and the first built-in metal sheet are respectively disposed between the two first movable balls. The two first movable balls are preferably symmetric with respect to the first adsorption magnet and the first built-in metal sheet.

[0014] Preferably, at least two third balls are provided on each side of the bottom of the third carrier, and third ball grooves are provided at corresponding positions on the bottom of the hollow chamber of the base. When the third driving mechanism drives the third carrier to move, the third balls roll within the third ball grooves to drive the third carrier to move along the optical axis direction within the hollow chamber.

[0015] Preferably, the first driving mechanism includes a first driving magnet disposed on the rear surface of the first carrier and a first driving coil disposed on the end face of the base; the second driving mechanism includes second driving magnets disposed on both end surfaces of the second carrier and a second driving coil disposed on the side wall of the base; and the third driving mechanism includes third driving magnets disposed on both end faces of the third carrier and a third driving coil disposed on the side wall of the base.

[0016] Preferably, a third built-in metal is further provided at the rear of the first carrier, and the first driving magnet is adsorbed on the first built-in metal when installed on the first carrier.

[0017] Preferably, the periscope lens driving device further includes a circuit board, which forms a U-shaped structure and is arranged around the other three side walls of the base except the side wall where the light exit is provided. The first driving coil, the second driving coil, and the third driving coil are respectively connected to the inner surface of the circuit board. The base is respectively provided with a first driving coil avoidance opening, a second driving coil avoidance opening, and a third driving coil avoidance opening at positions corresponding to the first driving coil, the second driving coil, and the third driving coil. The first driving coil, the second driving coil, and the third driving coil are respectively embedded in the first driving coil avoidance opening, the second driving coil avoidance opening, and the third driving coil avoidance opening and cooperate with the first driving magnet, the second driving magnet, and the third driving magnet.

[0018] Preferably, the periscope lens driving device further includes a housing and an anti-disengagement cover plate. The middle of the anti-disengagement cover plate is provided with an opening and a surrounding edge. The surrounding edge is located above the first carrier, the second carrier, and the third carrier and is snap-connected to the top of the base to prevent the first carrier, the second carrier, and the third carrier from disengaging from the base. The housing is installed on the base and is provided with a light inlet above the first carrier and forms an opening at one end where the light exit of the base is located.

[0019] The beneficial effects of the present invention are as follows: In the prior art, a periscope lens driving device generally includes two independent parts, namely a lens module and a prism module. Both the lens module and the prism module have their own independent bases and housings. During the manufacturing process, the two independent modules need to be assembled to achieve the driving effect. In the present invention, through such a design, the first carrier, the second carrier, and the third carrier combine the lens module and the prism module of the periscope lens driving device in the same device, thereby realizing the anti-shake function and zoom function of the periscope lens driving device, and making the structure of the periscope lens driving device simple, reducing the manufacturing process, and reducing the cost. Description of the Drawings

[0020] Figure 1Exploded perspective view of a periscope lens driving device according to an embodiment of the present invention;

[0021] Figure 2 Perspective view of a base according to an embodiment of the present invention;

[0022] Figure 3 First perspective exploded view of a first carrier and a second carrier according to an embodiment of the present invention;

[0023] Figure 4 is Figure 3 Second perspective exploded view of;

[0024] Figure 5 Perspective view of a third carrier according to an embodiment of the present invention;

[0025] Figure 6 Assembly perspective view of a carrier, a first carrier, a second carrier, and a third carrier according to an embodiment of the present invention. Detailed implementation manners

[0026] The following will describe the preferred embodiments of the present invention in detail with reference to the accompanying drawings to more clearly understand the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not limitations on the scope of the present invention, but only to illustrate the essential spirit of the technical solution of the present invention.

[0027] In the following description, for the purpose of explaining various disclosed embodiments, certain specific details are set forth to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments can be practiced without one or more of these specific details. In other instances, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail so as not to unnecessarily obscure the description of the embodiments.

[0028] References to "an embodiment" or "one embodiment" throughout the specification mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in an embodiment" or "in one embodiment" throughout the specification need not all refer to the same embodiment. Additionally, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0029] In the following description, in order to clearly show the structure and working mode of the present invention, many directional terms will be used for description. However, words such as "front", "rear", "left", "right", "outer", "inner", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as limiting terms.

[0030] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not require the components to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0032] An embodiment of the present invention provides a periscope lens driving device. Referring to Figure 1 , the periscope lens driving device 1 includes a base 70, a first carrier 10, a second carrier 20 and a third carrier 30. The base 70 is provided with a hollow chamber 71. The first carrier 10, the second carrier 20 and the third carrier 30 are arranged in the hollow chamber 71. Among them, the first carrier 10 is used to install a prism (not shown in the figure) and cooperate with the second carrier 20 to drive the prism to move in different directions under the drive of the first driving mechanism 40 and the second driving mechanism 50. The third carrier 30 is used to install a lens (not shown in the figure) and drive the lens to move along the optical axis direction of the lens under the drive of the third driving mechanism 60.

[0033] It should be noted that:

[0034] The first and second driving mechanisms 50 can drive the second carrier 20 to rotate around the X axis parallel to the optical axis. The first driving mechanism 40 can drive the first carrier 10 to rotate around the Y axis perpendicular to the optical axis. When the second driving mechanism 50 drives the second carrier 20 to rotate around the X axis, the first carrier 10 is driven to rotate around the X axis through the second carrier 20. Thus, the first carrier 10 is indirectly and directly driven by the second driving mechanism 50 and the first driving mechanism 40, and then the prism installed on the first carrier 10 is driven to rotate around the X axis and the Y axis to achieve the anti-shake function. However, those skilled in the art can understand that the first driving mechanism 40 can also drive the first carrier 10 to rotate around the X axis parallel to the optical axis, and the second driving mechanism 50 can also drive the second carrier 20 to rotate around the Y axis perpendicular to the optical axis.

[0035] The second and third driving mechanisms 60 drive the third carrier 30 to move along the direction of the optical axis to achieve the optical zoom function.

[0036] In the prior art, a periscope lens driving device generally includes two independent parts, namely a lens module and a prism module. Both the lens module and the prism module have their own independent bases and housings. During the manufacturing process, the two independent modules need to be assembled to achieve the driving effect.

[0037] In the present invention, through such a design, the first carrier 10, the second carrier 20, and the third carrier 30 combine the lens module and the prism module of the periscope lens driving device 1 within the same device, thereby realizing the anti-shake function and the zoom function of the periscope lens driving device 1, and enabling the periscope lens driving device 1 to have a simple structure, reduce the manufacturing process, and reduce costs.

[0038] In an embodiment of the present invention, referring to Figure 2 , a light exit 72 is provided on an end wall of the base 70. The third carrier 30 is disposed inside the light exit 72. Light enters the upper surface of the prism from above the base 70 in a direction perpendicular to the base 70 and is redirected by the prism and then exits through the lens from the light exit 72.

[0039] Through such a design, light enters from the light entrance, is redirected by the prism, and then exits through the lens from the light exit. This enables light to pass through the prism module and the lens module in sequence within one device and then leave the device.

[0040] In an embodiment of the present invention, referring to Figure 1 and Figure 6 , the second carrier 20 is disposed at the bottom of the first carrier 10, and the third carrier 30 is arranged side by side with the first carrier 10 within the hollow chamber 71 of the base 70.

[0041] Through such a design, the prism mounted on the first carrier 10 and the lens mounted on the third carrier 30 are on the same horizontal line, which enables light to pass through the prism module and the lens module in sequence within one device.

[0042] In an embodiment of the present invention, referring to Figure 1 , the first driving mechanism 40, the second driving mechanism 50, and the third driving mechanism 60 are electromagnetic driving mechanisms. Among them, when the second driving mechanism 50 drives the second carrier 20 to move, the first carrier 10 moves synchronously with the second carrier 20, and when the first driving mechanism 40 drives the first carrier 10 to move, the first carrier 10 moves relative to the second carrier 20.

[0043] Through such a design, it is possible to realize that the first driving mechanism 40 and the second driving mechanism 50 directly and indirectly drive the first carrier 10 to move. That is to say, the second carrier 20 and the first carrier 10 form a combined body, which can move as a whole relative to the base, and the first carrier 10 can move independently relative to the second carrier 20.

[0044] In one embodiment of the present invention, with reference to Figure 2 , Figure 3 and Figure 4 , an installation notch 11 is provided at the bottom of the first carrier 10, the second carrier 20 is disposed in the installation notch 11 and forms the bottom of the first carrier 10, and two second movable balls 22 and a second positioning ball 21 are provided at the bottom of the second carrier 20. The two second movable balls 22 and the second positioning ball 21 form a triangular structure and cooperate with the second movable ball groove 73 and the second positioning ball groove 74 on the bottom surface of the hollow chamber 71. When the second carrier 20 moves under the drive of the second driving mechanism 50, the second carrier 20 rotates with the second positioning ball 21 as a fulcrum.

[0045] Through such a design, the second carrier 20 and the first carrier 10 form a combined body. The ball structure at the bottom of the second carrier 20 enables the second carrier 2 to rotate with the second positioning ball 21 as a fulcrum under the drive of the second driving mechanism 50, and the friction of this rotational movement is relatively small.

[0046] In one embodiment of the present invention, with reference to Figure 3 and Figure 4 , an installation groove 12 is provided in the installation notch 11 of the first carrier 10, and the second carrier 20 is provided with an installation protrusion 23. The second carrier 20 and the first carrier 10 are movably connected by the cooperation of the installation protrusion 23 and the installation groove 12.

[0047] Specifically, with reference to Figure 3 and Figure 4 , the second carrier 20 includes a bottom 24, side portions 25 and an installation protrusion 23. The side portions 25 extend upward from both sides of the bottom 24 respectively. The bottom end of the installation protrusion 23 is connected to the middle of the bottom 24 and both ends of the installation protrusion 23 are connected to the side portions 25; and, the first carrier 10 includes a rear portion 13, side portions 14, a bottom 15 and an installation groove 12. The rear portion 13 extends downward from the rear side of the bottom 15. The bottom ends of the side portions 14 are connected to both sides of the bottom 15. The upper surface of the bottom 15 is an inclined surface and the lower surface of the bottom 15 is recessed upward on one side close to the rear portion 13 to form the installation groove 12; wherein, the installation protrusion 23 and the installation groove 12 are installed in cooperation.

[0048] Through such a design, the second carrier 20 and the first carrier 10 form a combined body. This combined body can move integrally relative to the base, and the first carrier 10 can move independently relative to the second carrier 20.

[0049] In one embodiment of the present invention, with reference to Figure 3 and Figure 4, a first movable ball 16 is provided at the bottom of the first carrier 10, and the second carrier 20 is provided with a first movable ball groove 26 that cooperates with the first movable ball 16. When the first driving mechanism 40 drives the first carrier 10 to move, the first carrier 10 moves relative to the second carrier 20 with the first movable ball 16 as a fulcrum.

[0050] Through such a design, the first driving mechanism 40 can drive the first carrier 10 to move independently relative to the second carrier 20, and the friction is relatively small.

[0051] In an embodiment of the present invention, referring to Figure 2 , Figure 3 and Figure 4 , a second adsorption magnet 27 is provided at the bottom end of the second carrier 20, and a second built-in metal (not shown in the figure) is provided inside the second carrier 20 and the base 70. The adsorption force is generated by the interaction between the second adsorption magnet 27 and the second built-in metal in the base and the second carrier to strengthen the connection between the second carrier 20 and the base 70.

[0052] Through such a design, an adsorption force is generated between the second adsorption magnet 27 and the second built-in metal provided in the base 70 and the second carrier 20, making the connection structure between the second carrier 20 and the base 70 more stable.

[0053] In an embodiment of the present invention, referring to Figure 3 and Figure 4 , a first adsorption magnet 17 and a first built-in metal (not shown in the figure) that cooperate with each other are respectively provided at the bottom end of the first carrier 10 and inside the second carrier 20, so as to form an adsorption force between the first carrier 10 and the second carrier 20 to strengthen the connection between the first carrier 10 and the second carrier 20.

[0054] Through such a design, an adsorption force is generated between the first adsorption magnet 17 and the first built-in metal provided in the second carrier 20, making the connection structure between the second carrier 20 and the first carrier 10 more stable.

[0055] In an embodiment of the present invention, referring to Figure 3 and Figure 4 , two first movable balls 16 are respectively provided at both ends of the bottom of the first carrier 10, and the first adsorption magnet 17 and the first built-in metal sheet are respectively arranged between the two first movable balls 16. The two first movable balls 16 are preferably symmetric about the first adsorption magnet 17 and the first built-in metal sheet.

[0056] Through such a design, the movement of the first carrier 10 relative to the second carrier 20 is not only smooth and free, but also more stable.

[0057] In an embodiment of the present invention, referring to Figure 2 andFigure 5 On both sides of the bottom of the third carrier 30, at least two third ball bearings 31 are provided respectively, and at corresponding positions on the bottom of the hollow chamber 71 of the base 70, third ball bearing grooves 75 are provided. When the third driving mechanism 60 drives the third carrier 30 to move, the third ball bearings 31 roll in the third ball bearing grooves 75 to drive the third carrier 30 to move along the optical axis direction in the hollow chamber 71.

[0058] Through such a design, the structures of the third ball bearings 31 and the third ball bearing grooves 75 can reduce the frictional force when the third carrier 30 moves on the base 70, and the movement direction of the third carrier 30 can be fixed as the third ball bearings 31 move along the grooving direction of the third ball bearing grooves 75.

[0059] In an embodiment of the present invention, referring to Figure 1 、 Figure 3 、 Figure 4 and Figure 5 the first driving mechanism 40 includes a first driving magnet 41 provided on the rear surface of the first carrier 10 and a first driving coil 42 provided on the end face of the base 70, the second driving mechanism 50 includes second driving magnets 51 provided on both end surfaces of the second carrier 20 and second driving coils 52 provided on the side wall of the base 70, and the third driving mechanism 60 includes third driving magnets 61 provided on both end faces of the third carrier 30 and third driving coils 62 provided on the side wall of the base 70. In an embodiment of the present invention,

[0060] Through such a design, the electromagnetic driving structures of the first driving mechanism 40, the second driving mechanism 50 and the third driving mechanism 60 are connected in a fitting manner with different carriers and the base.

[0061] In an embodiment of the present invention, referring to Figure 3 and Figure 4 a third built-in metal (not shown in the figure) is further provided at the rear of the first carrier 10, and when the first driving magnet 41 is installed on the first carrier 10, it is adsorbed on the first built-in metal.

[0062] Through such a design, the connection structure is made more stable.

[0063] In an embodiment of the present invention, referring to Figure 1 、 Figure 2 、 Figure 3 Figure 4 and Figure 5, the periscope lens driving device 1 further includes a circuit board 80. The circuit board 80 forms a U-shaped structure and is arranged around the other three side walls of the base 70 except for the light exit 72. The first driving coil 42, the second driving coil 52, and the third driving coil 62 are respectively connected to the inner surface of the circuit board 80. At positions corresponding to the first driving coil 42, the second driving coil 52, and the third driving coil 62 on the base 70, there are respectively a first driving coil avoidance opening 76, a second driving coil avoidance opening 77, and a third driving coil avoidance opening 78. The first driving coil 42, the second driving coil 52, and the third driving coil 62 are respectively embedded in the first driving coil avoidance opening 76, the second driving coil avoidance opening 77, and the third driving coil avoidance opening 78 and cooperate with the first driving magnet 41, the second driving magnet 51, and the third driving magnet 61.

[0064] Through such a design, the structure of the device is made more compact.

[0065] In an embodiment of the present invention, referring to Figure 1 and Figure 6 , the periscope lens driving device 1 further includes a housing 91 and an anti-disengagement cover plate 92. The middle of the anti-disengagement cover plate 92 is provided with an opening 921 and there are edges 922 around it. The edges 922 are located above the first carrier 10, the second carrier 20, and the third carrier 30 and are snap-connected to the top of the base 70 to prevent the first carrier 10, the second carrier 20, and the third carrier 30 from disengaging from the base 70. The housing 91 is installed on the base 70 and is provided with a light inlet 911 above the first carrier 10, and forms an opening at one end where the light exit 72 of the base 70 is located.

[0066] Specifically, there is a certain gap between the anti-disengagement cover plate 92 and the first carrier 10, so as not to affect the movement of the first carrier 10.

[0067] The preferred embodiments of the present invention have been described in detail above. However, it should be understood that after reading the above teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A periscope lens driving device, characterized in that, The periscope lens driving device includes a base, a first carrier, a second carrier, and a third carrier. The base is provided with a hollow chamber, and the first carrier, the second carrier, and the third carrier are arranged in the hollow chamber, where the first carrier is used for mounting a prism and cooperating with the second carrier to drive the prism to move in different directions under the drive of a first driving mechanism and a second driving mechanism. The third carrier is used for mounting a lens and driving the lens to move along the optical axis direction of the lens under the drive of a third driving mechanism; where a light exit is provided on an end wall of the base, and the third carrier is arranged inside the light exit. Light enters the upper surface of the prism from above the base in a direction perpendicular to the base and is deflected by the prism and then leaves through the light exit via the lens; the second carrier is arranged at the bottom of the first carrier, and the third carrier and the first carrier are arranged side by side in the hollow chamber of the base; the first driving mechanism, the second driving mechanism, and the third driving mechanism are electromagnetic driving mechanisms. Wherein, when the second driving mechanism drives the second carrier to move, the first carrier moves synchronously with the second carrier, and when the first driving mechanism drives the first carrier to move, the first carrier moves relative to the second carrier; and an installation notch is provided at the bottom of the first carrier, and the second carrier is arranged in the installation notch to form the bottom of the first carrier. Two second movable balls and one second positioning ball are provided at the bottom of the second carrier. The two second movable balls and one second positioning ball form a triangular structure and cooperate with a second movable ball groove and a second positioning ball groove on the bottom surface of the hollow chamber. When the second carrier moves under the drive of the second driving mechanism, the second carrier rotates with the second positioning ball as a fulcrum.

2. The periscope lens driving device according to claim 1, wherein An installation groove is provided in the installation notch of the first carrier, and the second carrier is provided with an installation protrusion. The second carrier is movably connected to the first carrier through the cooperation of the installation protrusion and the installation groove.

3. The periscope lens driving device according to claim 1, characterized in that, A first movable ball is provided at the bottom of the first carrier, and the second carrier is provided with a first movable ball groove cooperating with the first movable ball. When the first driving mechanism drives the first carrier to move, the first carrier moves relative to the second carrier with the first movable ball as a fulcrum.

4. The periscope lens driving device according to claim 3, wherein A second adsorption magnet is provided at the bottom end of the second carrier, and a second built-in metal is provided in the second carrier and the base. An adsorption force is generated through the action of the second adsorption magnet and the second built-in metal in the base and the second carrier to strengthen the connection between the second carrier and the base.

5. The periscope lens driving device according to claim 3, wherein, A first adsorption magnet and a first built-in metal that cooperate with each other are respectively provided at the bottom end of the first carrier and inside the second carrier, so as to form an adsorption force between the first carrier and the second carrier to strengthen the connection between the first carrier and the second carrier.

6. The periscope lens driving device according to claim 5, wherein, At both ends of the bottom of the first carrier, there is a first movable ball respectively, and the first adsorption magnet and the first built-in metal sheet are respectively arranged between the two first movable balls.

7. The periscope lens driving device according to claim 5, wherein The two first movable balls are symmetric with respect to the first adsorption magnet and the first built-in metal sheet.

8. The periscope lens driving device according to claim 1, wherein, On both sides of the bottom of the third carrier, there are at least two third balls respectively, and at corresponding positions on the bottom of the hollow chamber of the base, there are third ball grooves. When the third driving mechanism drives the third carrier to move, the third balls roll in the third ball grooves to drive the third carrier to move along the optical axis direction in the hollow chamber.

9. The periscope lens driving device according to claim 5, characterized in that, The first driving mechanism includes a first driving magnet arranged on the rear surface of the first carrier and a first driving coil arranged on the end face of the base. The second driving mechanism includes second driving magnets arranged on the two end surfaces of the second carrier and second driving coils arranged on the side wall of the base. The third driving mechanism includes third driving magnets arranged on the two end faces of the third carrier and third driving coils arranged on the side wall of the base.

10. The periscope lens driving device according to claim 9, characterized in that, At the rear part of the first carrier, there is also a third built-in metal, and when the first driving magnet is installed on the first carrier, it is adsorbed on the first built-in metal.

11. The periscope lens driving device according to claim 9, characterized in that, The periscope lens driving device further includes a circuit board. The circuit board forms a U-shaped structure and is arranged around the other three side walls of the base except the one provided with the light outlet. The first driving coil, the second driving coil and the third driving coil are respectively connected to the inner surface of the circuit board. At positions corresponding to the first driving coil, the second driving coil and the third driving coil on the base, there are a first driving coil avoidance opening, a second driving coil avoidance opening and a third driving coil avoidance opening respectively. The first driving coil, the second driving coil and the third driving coil are respectively embedded into the first driving coil avoidance opening, the second driving coil avoidance opening and the third driving coil avoidance opening and cooperate with the first driving magnet, the second driving magnet and the third driving magnet.

12. The periscope lens driving device according to claim 1, wherein, The periscope lens driving device further includes a housing and an anti-disengagement cover plate. The middle of the anti-disengagement cover plate is provided with an opening and the periphery is provided with a flange. The flange is located above the first carrier, the second carrier and the third carrier and is snap-connected to the top of the base to prevent the first carrier, the second carrier and the third carrier from disengaging from the base. The housing is installed on the base and is provided with a light inlet above the first carrier, and forms an opening at one end where the light outlet of the base is located.

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