Lens device

Abstract

A lens device comprises a lens module, a base, a first carrier, a second carrier, a first driving coil, a second driving coil, a first driving magnet, a second driving magnet and a flexible circuit board. The first carrier is movably arranged on the base and used for carrying the lens module. The second carrier is movably arranged on the base and used for bearing the first carrier. The first drive coil and the second drive coil are fixedly arranged on the base. The first driving magnet and the second driving magnet are fixedly arranged on the second carrier. The flexible circuit board is laid on the base and electrically connected with the first driving coil and the second driving coil. Wherein the flexible circuit board comprises a first part and a second part, and the first part is farther from the object side than the second part. Wherein the first driving coil is arranged on the first part, and the second driving coil is arranged on the second part.

Description

Technical Field

[0001] The invention relates to a lens device, and more particularly to a lens device which is thinner and has good optical performance. Background Art

[0002] Nowadays, the pursuit of higher magnification or longer focal length lens devices will make the lens devices larger. Under the trend of thinning, how to further reduce the thickness of devices equipped with lens devices, such as smartphones, tablets, mobile terminal devices, and the thickness of cameras with micro lens devices, has always been a topic and challenge for R&D personnel. Summary of the invention

[0003] In view of this, the present invention provides a lens device, which reduces the thickness of the driving device thereof to achieve the purpose of reducing the overall thickness of the lens device.

[0004] A lens device according to one embodiment of the present invention comprises a lens module, a base, a first carrier, a second carrier, a driving device, and a power supply component. The lens module has an object side and an optical axis. The first carrier is used to carry the lens module. The second carrier is arranged on the base to carry the first carrier, the first carrier can move relative to the second carrier, and the second carrier can move relative to the base. The driving device is arranged between the lens module and the base, and comprises at least one driving coil and at least one driving magnet, the driving coil can be arranged on one of the base or the second carrier, the driving magnet can be arranged on the other of the base or the second carrier, and the driving coil is opposite to the driving magnet. The power supply component is arranged between the base and the second carrier and is electrically connected to the driving device. In the lens device, the lens module, the second carrier or the first carrier, the power supply component and the base are arranged in sequence along the optical axis, wherein the base is farthest from the object side. The power supply assembly includes a first portion and a second portion, the first portion is farther from the object side than the second portion in the direction along the optical axis, and the driving coil or the driving magnet of the driving device is arranged at the first portion and the second portion. The driving device can drive the second carrier to move along the first axial direction and / or the second axial direction relative to the base, and the electromagnetic force generated by the driving coil and the driving magnet is used to drive the second carrier to move toward the first axial direction and / or the second axial direction, and the first axial direction and the second axial direction are perpendicular to each other.

[0005] In another embodiment of the present invention, the power supply component is a flexible circuit board. The first portion and the second portion form a step difference on the flexible circuit board, or the first portion and the second portion form a step shape on the flexible circuit board, or the first portion is located on a first plane and extends, and the second portion is located on a second plane and extends, and the first plane and the second plane are both perpendicular to the optical axis, and the distance between the intersection of the first plane and the second plane and the optical axis is greater than zero.

[0006] In another embodiment of the present invention, the step difference may be at least one or more, or the stepped shape may be at least one or more.

[0007] In another embodiment of the present invention, the driving device further includes a first driving coil, a second driving coil, a first driving magnet and a second driving magnet. The first driving coil and the second driving coil are fixedly mounted on the base. The first driving magnet and the second driving magnet are fixedly mounted on the second carrier. The first driving coil is arranged on the first portion, and the second driving coil is arranged on the second portion; the second carrier is driven to move toward the first axial direction by the electromagnetic force generated by the action of the first driving coil and the first driving magnet, and the second carrier is driven to move toward the second axial direction by the electromagnetic force generated by the action of the second driving coil and the second driving magnet; the driving device can drive the first carrier to move along a third axial direction relative to the second carrier, and the third axial direction is perpendicular to the first axial direction and the second axial direction.

[0008] In another embodiment of the present invention, the driving device further comprises a third driving coil and a third driving magnet. The third driving coil is fixedly mounted on the first carrier. The third driving magnet is fixedly mounted on the second carrier. The first carrier is driven to move toward the third axial direction by the electromagnetic force generated by the third driving coil and the third driving magnet.

[0009] In another embodiment of the present invention, the first portion is a first mounting portion, the second portion is a second mounting portion, the first drive coil is arranged in the first mounting portion, and the second drive coil is arranged in the second mounting portion; the first drive magnet, the third drive coil and the third drive magnet are located in a space formed between the first portion and the second carrier, and the second drive magnet is located in a space formed between the second portion and the second carrier.

[0010] In another embodiment of the present invention, the first driving magnet and the third driving magnet are arranged along the third axial direction, and the third driving coil is disposed on the same side of the first driving magnet and the third driving magnet.

[0011] In another embodiment of the present invention, the current of the first drive coil flows along the second axial direction. The N pole of the first drive magnet faces the first axial direction, and the S pole and the N pole of the first drive magnet face opposite directions. The current of the second drive coil flows along the first axial direction. The N pole of the second drive magnet faces the second axial direction, and the S pole and the N pole of the second drive magnet face opposite directions. The current of the third drive coil flows along the second axial direction. Both the N pole and the S pole of the third drive magnet face the first axial direction.

[0012] In another embodiment of the present invention, the lens device further includes at least one sheet-like elastic body and at least one linear elastic body, wherein the sheet-like elastic body is connected to the first carrier and the second carrier, the linear elastic body extends along the third axis and is simultaneously connected to the base and the sheet-like elastic body, and the linear elastic body is linked between the base and the second carrier.

[0013] In another embodiment of the present invention, the lens device further includes a guide member extending along the third axis, wherein a first groove is arranged on the outer surface of the first carrier, and a second groove opposite to the first groove is arranged on the inner surface of the second carrier, and the guide member is located in the first groove and the second groove.

[0014] The lens device of the present invention can generate additional space to accommodate the first driving magnet, the third driving magnet and the third driving coil without increasing the thickness, so that the thickness of the entire lens device can be further reduced compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a lens device according to one embodiment of the present invention,

[0016] Figure 2 is based on Figure 1 A cross-sectional view of the lens device along II-II.

[0017] Figure 3 is based on Figure 2 Schematic diagram of a lens module of a lens device and its supporting structure.

[0018] Figure 4 yes Figure 3 Exploded view of the supporting structure.

[0019] Figure 5 is based on Figure 2 Schematic diagram of a driving device of a lens device.

[0020] Figure 6 show Figure 5The driving principle of the driving device of the lens device in the first axial direction.

[0021] Figure 7 show Figure 5 The driving principle of the driving device of the lens device in the second axial direction.

[0022] Figure 8 show Figure 5 The driving principle of the driving device of the lens device in the third axis direction. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The first axial direction (or X-axis direction) referred to below is a general concept of the first direction X and its opposite direction, that is, the first axial direction includes both +X and -X directions. Similarly, the second axial direction (or Y-axis direction) is a general concept of the second direction Y and its opposite direction, and the third axial direction (or Z-axis direction) is a general concept of the third direction Z and its opposite direction.

[0025] Please also see Figure 1 as well as Figure 2 , Figure 1 is a schematic structural diagram of a lens device 100 according to one embodiment of the present invention. Figure 2 is based on Figure 1 The lens device 100 is a cross-sectional view along II-II. As shown in the figure, the lens device 100 of the present embodiment includes a lens module 101, a support structure 102, a driving device 107, an optical path turning module 103, a filter 104, and an image sensor 105. The light from the object side passes through the lens module 101, changes its traveling direction after multiple reflections in the optical path turning module 103, and reaches the filter 104, and then reaches the image sensor 105 through the filter 104. The support structure 102 is used to support the lens module 101 and the driving device 107. The driving device 107 is disposed between the lens module 101 and the support structure 102. The driving device 107 includes at least one driving coil and at least one driving magnet. The driving device 107 can drive the lens module 101 along the third axial direction (Z-axis direction) to perform an auto focus (AF) operation, or drive the lens module 101 along the first axial direction (X-axis direction) and the second axial direction (Y-axis direction) to perform an optical image stabilization (OIS) operation.

[0026] In this embodiment, the optical path turning module 103 is composed of a plurality of prisms, the filter 104 is an infrared filter (IR Cut Filter), and the image sensor 105 is a charge coupled device (CCD), but this is only an example, and the present invention is not limited to this, and any components with the same function should belong to the scope of the present invention. Specifically, the optical path turning module 103 can be composed of an integrally formed prism, or composed of a plurality of prisms, or the aforementioned prism is replaced by a reflector. The optical path turning module 103 is used to reflect the light from the object side multiple times before reaching the image sensor 105 to extend the optical path length, so that the lens device 100 can be equipped with a lens module 101 with a longer focal length (EFL) or a longer back focal length (BFL). In this way, it can be thinned and obtain good optical performance and a higher optical magnification in a limited space. The structure of the support structure 102 and the driving device 107 is described in detail below.

[0027] Please also see Figure 3 as well as Figure 4 , Figure 3 is a schematic structural diagram of a lens module 101 and a supporting structure 102 of a lens device 100 according to this embodiment, Figure 4 yes Figure 3 Exploded view of the support structure 102. As shown in the figure, the support structure 102 includes a base 110, a first carrier 111 and a second carrier 114, wherein the first carrier 111 is arranged at the periphery of the lens module 101 to carry the lens module 101, and the second carrier 114 is arranged at the periphery of the first carrier 111 to carry the first carrier 111. The base 110 is arranged below the first carrier 111 and the second carrier 114 to carry the first carrier 111 and the second carrier 114.

[0028] The support structure 102 further includes a plurality of sheet elastic bodies 113 and a linear elastic body 112, wherein the sheet elastic body 113 extends in a winding manner on the XY plane and is simultaneously connected to the first carrier 111 and the second carrier 114. When the first carrier 111 is acted upon by an external force (e.g., an electromagnetic force from the driving device 107) and moves relative to the second carrier 114 along a third direction Z, the sheet elastic body 113 can be deformed and twisted by the force, so that the first carrier 111 can move in the third direction Z, and generate an elastic force in the opposite direction to act on the first carrier 111. When the external force decreases or disappears, the elastic force of the sheet elastic body 113 can drive the first carrier 111 to move in the opposite direction of the third direction Z, so as to achieve a reset effect of returning to the initial position without consuming power, and, in a non-working state without power supply, provide the first carrier 111 with a stable fixed position on the second carrier 114. In addition, the sheet elastic body 113 has a meandering portion (not shown). When the lens device 100 is impacted by an external force, such as falling or hitting, the buffering effect provided by the meandering portion can prevent the sheet elastic body 113 from being damaged or broken due to excessive tension or pulling force. The meandering portion can protect the sheet elastic body 113, thereby improving the reliability of the lens device 100. The linear elastic body 112 extends along the Z-axis direction and is connected to the base 110 and the sheet elastic body 113 at the same time, that is, it is linked between the base 110 and the second carrier 114. When the second carrier 114 is subjected to an external force (for example, an electromagnetic force from the driving device 107) and moves relative to the base 110 along the first direction X and / or the second direction Y, the linear elastic body 112 can bend laterally due to the force, so that the second carrier 114 can move in the first direction X and / or the second direction Y, and generate elastic force in the opposite direction to act on the second carrier 114. When the external force is reduced or disappears, the elastic force of the linear elastic body 112 can drive the first carrier 111 to move in the opposite direction of the first direction X and the second direction Y, so as to return to the initial position without consuming power and provide the second carrier 114 with a stable fixed position on the base 110 in a non-working state without power. It can be understood that the driving device 107 can drive the first carrier 111 to move along the third axial direction (Z-axis direction) relative to the second carrier 114 to perform auto focus (AF), and drive the second carrier 114 to move along the first axial direction (X-axis direction) and / or the second axial direction (Y-axis direction) relative to the base 110 to perform optical image stabilization (OIS), wherein the first axial direction, the second axial direction and the third axial direction are perpendicular to each other.

[0029] A first groove 132 is provided on the outer surface of the first carrier 111, a second groove 133 opposite to the first groove 132 is provided on the inner surface of the second carrier 114, and a guide 131 extending along the third axial direction (Z-axis direction) is further provided between the first carrier 111 and the second carrier 114. The guide 131 is located in the first groove 132 and the second groove 133. When the first carrier 111 moves relative to the second carrier 114, the first carrier 111 can move along the extension direction (that is, the third axial direction) of the guide 131. When the lens device 100 performs an auto focus (AF) operation, the guide 131 can ensure the stability of the movement of the first carrier 111 and prevent the first carrier 111 from moving in other directions relative to the second carrier 114.

[0030] Please also see Figure 4 as well as Figure 5 The driving device 107 includes a first driving coil 122, a first driving magnet 121, a second driving coil 123, a second driving magnet 124, a third driving coil 125 and a third driving magnet 126. A flexible circuit board 119 (or other types of power supply components) is laid on the base 110 to supply power to the first driving coil 122, the second driving coil 123 and the third driving coil 125 of the driving device 107. Specifically, the flexible circuit board 119 is disposed on the base 110 and is located between the base 110 and the second carrier 114. The base 110 is substantially a rectangular frame, and the shape of the flexible circuit board 119 corresponds to the shape of the base 110. Therefore, the flexible circuit board 119 has two opposite second portions in the X-axis direction and two opposite first portions in the Y-axis direction. Figure 4 It can be seen that the first part and the second part surround the optical axis of the lens module 101. It is worth noting that the first part is located at a lower position and the second part is located at a higher position. The first part and the second part are respectively on different horizontal planes, that is, the first part is farther from the object side of the lens module 101 than the second part. In other words, the base 110 has a step difference of a high and low plane difference, and the flexible circuit board 119 laid on the base 110 also has a step difference of a high and low plane difference. In this embodiment, there is a step difference formed by the first part and the second part, and the step difference forms a step-like structure of one level, but the present invention is not limited to this. The step difference can be a step-like structure of multiple levels, for example, a third part, a fourth part, etc. are further provided, so that the step difference forms a step-like structure of two, three or multiple levels. By providing at least one level of a step-like structure at the same height, components are accommodated to improve space utilization and achieve a better thinning effect. In this embodiment, a first mounting portion 117 is provided on the first part, and a second mounting portion 116 is provided on the second part, which is further described as follows:

[0031] The first driving coil 122 is disposed in the first mounting portion 117 of the flexible circuit board 119 and is electrically connected to the flexible circuit board 119, wherein the first mounting portion 117 is farther from the object side of the lens module 101 than the second mounting portion 116, the first mounting portion 117 is located lower, and the second mounting portion 116 is located higher, and the first mounting portion 117 and the second mounting portion 116 are respectively located on different horizontal planes, and the first mounting portion 117 and the second mounting portion 116 form a step difference in the height plane. The first driving magnet 121 is fixedly disposed at the bottom of the second carrier 114 and is disposed opposite to the first driving coil 122. The first driving coil 122 can act with the first driving magnet 121 to generate an electromagnetic force to drive the second carrier 114 to move in the first direction X or in the opposite direction, that is, to move the second carrier 114 along the first axial direction (X-axis direction). Please refer to Figure 6 , the first driving magnet 121 will generate a magnetic field B1 around, and the magnetic field lines of the magnetic field B1 will pass through the first driving coil 122. When the flexible circuit board 119 supplies power to the first driving coil 122, a current I1 will flow through the first driving coil 122. According to Fleming's Left Hand Rule, the first driving coil 122 will be acted upon by the electromagnetic force F1, and the first driving magnet 121 will also be subjected to a reaction force F1'. Since the first driving magnet 121 is fixed on the second carrier 114, the reaction force F1' will drive the second carrier 114 to move. When the current I1 of the first driving coil 122 flows in the reverse direction, the reaction force F1' acting on the second carrier 114 will also change direction, thereby achieving the second carrier 114 to move along the first direction X or move in the reverse direction, which is used to offset the hand shake in the first direction X or the reverse direction, and can compensate for the vibration offset along the first axial direction (X-axis direction).

[0032] Similarly, the second driving coil 123 is disposed in the second mounting portion 116 of the flexible circuit board 119 and is electrically connected to the flexible circuit board 119. The second driving magnet 124 is fixedly disposed at the bottom of the second carrier 114 and is disposed opposite to the second driving coil 123. The second driving coil 123 can act with the second driving magnet 124 to generate an electromagnetic force to drive the second carrier 114 to move in the second direction Y or in the opposite direction, that is, to move the second carrier 114 along the second axial direction (Y axis direction). Please refer to Figure 7, the second driving magnet 124 will generate a magnetic field B2 around, and the magnetic field lines of the magnetic field B2 will pass through the second driving coil 123. When the flexible circuit board 119 supplies power to the second driving coil 123, a current I2 will flow through the second driving coil 123, so that the second driving coil 123 is acted upon by the electromagnetic force F2, and the second driving magnet 124 will also be subjected to a reaction force F2'. Since the second driving magnet 124 is fixed on the second carrier 114, the reaction force F2' will drive the second carrier 114 to move, and when the current I2 of the second driving coil 123 flows in the reverse direction, the reaction force F2' acting on the second carrier 114 will also change direction, thereby achieving the second carrier 114 to move along the second direction Y or move in the reverse direction, which is used to offset the hand shake in the second direction Y or in the reverse direction, and can compensate for the vibration offset along the second axial direction (Y-axis direction).

[0033] The third driving magnet 126 is stacked on the first driving magnet 121 and is also fixed to the bottom of the second carrier 114, that is, the third driving magnet 126 is closer to the second carrier 114 in the third axial direction (Z-axis direction) than the first driving magnet 121. The third driving coil 125 is fixed on the first carrier 111 and is electrically connected to the flexible circuit board 119 or the flexible circuit board (not shown) on the first carrier 111. The third driving coil 125 is arranged opposite to the third driving magnet 126 and the first driving magnet 121, as shown in FIG. Figure 5 As shown, the third driving coil 125 is located on the same side of the first driving magnet 121 and the third driving magnet 126. The third driving coil 125 can act with the third driving magnet 126 to generate electromagnetic force to drive the first carrier 111 to move in the third direction Z or in the opposite direction, that is, to move the first carrier 111 along the third axial direction (Z axis direction). Figure 8 , the third driving magnet 126 will generate a magnetic field B3 around, and the magnetic field lines of the magnetic field B3 will pass through the third driving coil 125. When the flexible circuit board 119 supplies power to the third driving coil 125, a current I3 will flow through the third driving coil 125, so that the third driving coil 125 is acted upon by an electromagnetic force F3. Since the third driving coil 125 is fixed on the first carrier 111, the electromagnetic force F3 will drive the first carrier 111 to move. When the current I3 of the third driving coil 125 flows in the reverse direction, the electromagnetic force F3 will also change direction and act on the first carrier 111, thereby achieving the first carrier 111 to move along the third direction Z or move in the reverse direction, so as to perform an autofocus operation.

[0034] In summary, the first carrier 111 is disposed on the periphery of the lens module 101 to carry the lens module 101, and the second carrier 114 is disposed on the periphery of the first carrier 111 to carry the first carrier 111. The base 110 is disposed below the first carrier 111 and the second carrier 114 to carry the first carrier 111 and the second carrier 114, and the flexible circuit board 119 is disposed between the base 110 and the second carrier 114. Therefore, in the lens device 100, the lens module 101, the second carrier 114 (or the first carrier 111), the flexible circuit board 119 and the base 110 are arranged in sequence along the optical axis, wherein the base 110 is farthest from the object side. The first portion (first mounting portion 117) on the flexible circuit board 119 is located at a lower position, and the second portion (second mounting portion 116) is located at a higher position, that is, the first portion (first mounting portion 117) is farther from the object side, and the second portion (second mounting portion 116) is closer to the object side. The present invention utilizes the upper space generated by the lower position of the first portion (first mounting portion 117) to set the first driving magnet 121, the third driving magnet 126 and the third driving coil 125, so that the thickness of the entire lens device 100 can be further reduced compared with the prior art.

[0035] See also Figure 4Structurally, the first portion (first mounting portion 117) is located at a lower position, and the second portion (second mounting portion 116) is located at a higher position, that is, this structural design forms a step difference on the flexible circuit board 119, and the first portion (first mounting portion 117) and the second portion (second mounting portion 116) are respectively located on different segments. Or it can be said that this structural design forms a step shape on the flexible circuit board 119, wherein the first portion (first mounting portion 117) and the second portion (second mounting portion 116) are respectively located on different steps. This embodiment can also be understood as the first portion (first mounting portion 117) being located on a first plane (not indicated), and the second portion (second mounting portion 116) being located on a second plane (not indicated) and extending, the first plane and the second plane are both perpendicular to the optical axis of the lens module 101, and the distance between the intersection of the first plane and the second plane and the optical axis is greater than zero. In short, this structural design is to create additional space to accommodate the first driving magnet 121, the third driving magnet 126 and the third driving coil 125 without increasing the thickness, so that the thickness of the entire lens device 100 can be further reduced compared with the prior art. It can be understood that the aforementioned embodiment forms a step-difference or stepped structure on the base 110 or the flexible circuit board 119, but the present invention is not limited to this. In another embodiment, the step-difference or stepped structure can also be reversed and set at the bottom of the second carrier 114, and the relevant configuration of the driving device 107 is adjusted accordingly, for example, the driving coil is set at the bottom of the second carrier 114, and the driving magnet is set on the base, which can also achieve the effect of improving space utilization and reducing thickness compared with the prior art. In other words, the driving coil can be set on one of the base or the second carrier, and the driving magnet can be set on the other of the base or the second carrier.

[0036] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A lens device, characterized in that: include: A lens module having an object side and an optical axis; Pedestal; A first carrier, used for carrying the lens module; A second carrier, disposed on the base, for carrying the first carrier, the first carrier being movable relative to the second carrier, and the second carrier being movable relative to the base; a driving device, disposed between the lens module and the base, comprising at least one driving coil and at least one driving magnet, wherein the driving coil may be disposed on one of the base or the second carrier, and the driving magnet may be disposed on the other of the base or the second carrier, and the driving coil is opposite to the driving magnet; A power supply assembly, disposed between the base and the second carrier and electrically connected to the driving device; Wherein, in the lens device, the lens module, the second carrier or the first carrier, the power supply assembly and the base are arranged in sequence along the optical axis, wherein the base is farthest from the object side; The power supply assembly includes a first portion and a second portion, the first portion is farther from the object side than the second portion in the direction along the optical axis, and the driving coil or the driving magnet of the driving device is arranged at the first portion and the second portion; The driving device can drive the second carrier to move along the first axial direction and / or the second axial direction relative to the base, and the electromagnetic force generated by the driving coil and the driving magnet can drive the second carrier to move toward the first axial direction and / or the second axial direction, and the first axial direction and the second axial direction are perpendicular to each other.

2. The lens device according to claim 1, wherein: The power supply component is a flexible circuit board; The first portion and the second portion form a step difference on the flexible circuit board, or the first portion and the second portion form a step shape on the flexible circuit board, or the first portion is located on a first plane and extends, and the second portion is located on a second plane and extends, and the first plane and the second plane are both perpendicular to the optical axis, and the distance between the intersection of the first plane and the second plane and the optical axis is greater than zero.

3. The lens device according to claim 2, characterized in that: The step difference may be at least one or more, or the stepped shape may be at least one or more.

4. The lens device according to claim 2, characterized in that: The driving device further includes: a first driving coil and a second driving coil, fixed on the base; a first driving magnet and a second driving magnet, fixed on the second carrier; wherein the first driving coil is arranged on the first portion, and the second driving coil is arranged on the second portion; the second carrier is driven to move toward the first axial direction by the electromagnetic force generated by the action of the first driving coil and the first driving magnet, and the second carrier is driven to move toward the second axial direction by the electromagnetic force generated by the action of the second driving coil and the second driving magnet; the driving device can drive the first carrier to move along a third axial direction relative to the second carrier, and the third axial direction is perpendicular to the first axial direction and the second axial direction.

5. The lens device according to claim 4, characterized in that: The driving device further comprises: A third driving coil is fixedly mounted on the first carrier; A third driving magnet is fixedly mounted on the second carrier; The first carrier is driven to move toward the third axial direction by the electromagnetic force generated by the third driving coil and the third driving magnet.

6. The lens device according to claim 5, characterized in that: The first part is a first mounting part, the second part is a second mounting part, the first drive coil is arranged in the first mounting part, and the second drive coil is arranged in the second mounting part; the first drive magnet, the third drive coil and the third drive magnet are located in a space formed between the first part and the second carrier, and the second drive magnet is located in a space formed between the second part and the second carrier.

7. The lens device according to claim 6, characterized in that: The first driving magnet and the third driving magnet are arranged along the third axial direction, and the third driving coil is disposed on the same side of the first driving magnet and the third driving magnet.

8. The lens device according to claim 5, characterized in that: The current of the first driving coil flows along the second axial direction; The N pole of the first driving magnet faces the first axial direction, and the S pole and the N pole of the first driving magnet face opposite directions; The current of the second driving coil flows along the first axial direction; The N pole of the second driving magnet faces the second axial direction, and the S pole and the N pole of the second driving magnet face opposite directions; The current of the third driving coil flows along the second axial direction; The N pole and the S pole of the third driving magnet are both oriented toward the first axial direction.

9. The lens device according to claim 4, characterized in that: It further includes at least one sheet-like elastic body and at least one linear elastic body, wherein the sheet-like elastic body is connected to the first carrier and the second carrier, the linear elastic body extends along the third axial direction and is simultaneously connected to the base and the sheet-like elastic body, and the linear elastic body is linked between the base and the second carrier.

10. The lens device according to claim 4, wherein: It further includes a guide member extending along the third axial direction, wherein a first groove is arranged on the outer surface of the first carrier, a second groove opposite to the first groove is arranged on the inner surface of the second carrier, and the guide member is located in the first groove and the second groove.

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