A multi-mode lens switching mechanism and optical lens

Abstract

The application relates to the technical field of optical lenses, and discloses a multi-mode lens switching mechanism and an optical lens, which comprises a first lens barrel and a second lens barrel, the first lens barrel and the second lens barrel are coaxially arranged, the first lens barrel and the second lens barrel are connected through a connecting frame, two mounting rotating frames are arranged between the first lens barrel and the second lens barrel and rotate through fixing shafts. The application is characterized in that a sealing bag is arranged between the two pushing rings, and the sealing bag is filled with non-Newtonian liquid. Therefore, the non-Newtonian liquid in the sealing bag is first extruded when the two pushing rings suddenly approach each other, so that the mutual approach of the two pushing rings can be buffered, the pushing of the pushing ring is decelerated, then the two pushing rings slowly extrude the non-Newtonian liquid in the sealing bag, the two pushing rings slowly approach each other, the slow approach of the pushing ring is finally realized, and the convex lens assembly is protected from collision.

Description

Technical Field

[0001] This invention relates to the field of optical lens technology, and in particular to a multi-mode lens switching mechanism and an optical lens. Background Technology

[0002] Optical lenses, as components used for optical imaging, are a crucial part of machine vision systems and play a key role in image quality. Optical lenses typically consist of multiple lens elements and a lens barrel. In some applications, it is necessary to rotate, or even cut in or out, the lens elements within the optical lens. This requires readjusting the optical lens structure, but the following problems often arise during the adjustment process:

[0003] When cutting in or out of a lens within a telescope barrel, the switching usually involves the entire lens. In particular, the switching of a convex lens usually involves replacing the entire convex lens. However, it is not possible to fine-tune the focal length of the convex lens. For special applications, it is necessary to adjust the focal length of the corresponding convex lens, but existing technology cannot fine-tune a specific convex lens.

[0004] Secondly, during the switching process of convex lenses, multiple types of lenses are usually required. During this switching process, the lenses inevitably come into contact. Conventional lens bonding uses contact alignment bonding or sliding bonding between lenses. However, for products like lenses, conventional sliding bonding alignment can easily cause the lenses to scratch. Therefore, it is necessary to align first and then bond them together. However, this method requires the lenses to be bonded slowly during the bonding process to avoid damaging the lenses.

[0005] To address this, we designed a multi-mode lens switching mechanism and an optical lens. Summary of the Invention

[0006] The purpose of this invention is to solve the problem that in the prior art, the switching of convex lenses usually involves directly replacing the entire convex lens, but it is not possible to fine-tune the focal length of the convex lens. For special applications, it is necessary to adjust the focal length of the corresponding convex lens. Therefore, a multi-mode lens switching mechanism and optical lens are proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A multi-mode lens switching mechanism includes a first lens barrel and a second lens barrel, which are coaxially arranged and connected by a connecting frame. Two mounting rotating frames rotate between the first and second lens barrels. The mounting rotating frames rotate between the first and second lens barrels via a fixed shaft. A convex lens assembly is mounted on the mounting rotating frame. The convex lens assembly includes a first convex lens and a second convex lens. A positioning mechanism is provided on the fixed shaft to drive the mounting rotating frames to rotate and position. A push-and-release component is also provided on the fixed shaft to push the convex lens assembly on the mounting rotating frame to fit.

[0009] Preferably, the fixed shaft is fixed to the outer wall of the first and second lens barrels directly below the connecting frame via a shaft platform, and the rotating frame is mounted on the fixed shaft and rotates coaxially.

[0010] Preferably, the mounting of the rotating frame includes:

[0011] The propulsion ring is coaxially sleeved on the outer wall of the fixed shaft.

[0012] The mounting rings are arranged in multiples, and are circumferentially spaced on the outer wall of the propulsion ring. The mounting rings are connected to the propulsion rings by a connecting bracket.

[0013] Preferably, both the first convex lens and the second convex lens are convex lenses with a curved surface on one side and a flat surface on the other side, and the first convex lens and the second convex lens have the same plane radius but different curvatures of their surfaces.

[0014] Preferably, the positioning mechanism includes:

[0015] A rotating ring is coaxially sleeved on the outer wall of the fixed shaft, and the rotating ring rotates on the outer wall of the fixed shaft through the first ring groove and the ring block.

[0016] The insertion rod slides radially through the through hole on the rotating ring, and the insertion rod is reset and extended within the through hole by a return spring. The outer wall of the fixed shaft has slots that correspond one-to-one with the positions of the mounting rings.

[0017] Preferably, a plurality of connecting rods are inserted through the rotating ring, one end of the connecting rod is fixedly connected to the propulsion ring, and the other end of the connecting rod is fixed with a magnet ring sleeved on the outer wall of the fixed shaft.

[0018] Preferably, both ends of the fixed shaft are provided with electromagnetic generators that attract and repel the magnet ring.

[0019] Preferably, a sealing bag is provided between the two propulsion rings, and the sealing bag is filled with a non-Newtonian liquid. A second ring groove is provided at the opposite ends of the two propulsion rings. An elastic plate is placed on the sealing bag, and the two ends of the elastic plate slide in the second ring groove through end blocks.

[0020] Preferably, the mounting ring has a mounting groove, the first convex lens and the second convex lens are placed in the mounting groove, the outer walls of the first convex lens and the second convex lens are provided with push plates, and the push plates slide on the mounting ring through spring grooves. The spring grooves are provided with compression springs that push the first convex lens and the second convex lens out of the mounting grooves.

[0021] An optical lens, the convex lens assembly including the optical lens.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. In this invention, when the propulsion ring is driven to rotate together with the mounting ring, the mounting ring will stop and be positioned when it is located between the first lens barrel and the second lens barrel and is coaxially set. At this time, the mounting ring is coaxially set with the first lens barrel and the second lens barrel. Therefore, as the propulsion ring rotates, multiple mounting rings can be rotated to the position between the first lens barrel and the second lens barrel. Then, mounting rings with different convex lens assemblies can be combined. Different convex lenses can be selected, and the planes of the convex lenses can be made to fit together to form a matching convex lens, thereby realizing the switching of convex lenses and finally changing the focal length to meet the requirements of the required convex lens, thus forming a combination of convex lenses with different focal lengths.

[0024] 2. In this invention, since the first and second convex lenses protrude from the mounting grooves, the final effect during the process of the advancing rings approaching each other is that the two mounting rings approach and fit tightly together. Therefore, during the process of the two mounting rings approaching each other, the first and second convex lenses protruding from the mounting grooves will first fit tightly together. At the same time, since the sealed bag containing non-Newtonian liquid can buffer the approach of the first and second convex lenses, it avoids collisions and bumps during the assembly of the convex lenses. If the first and second convex lenses did not protrude from the mounting grooves, there would be a gap between the first and second convex lenses after the two mounting rings approach and fit tightly together, which would affect the light in optical observation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a multi-mode lens switching mechanism proposed in this invention;

[0026] Figure 2 This is a schematic diagram of the structure of the rotating frame installed in the multi-mode lens switching mechanism proposed in this invention;

[0027] Figure 3 This is a schematic diagram of the structure of a multi-mode lens switching mechanism proposed in this invention before the rotating frame is in contact with the device.

[0028] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0029] Figure 5 This is a schematic diagram of the positioning component in a multi-mode lens switching mechanism proposed in this invention;

[0030] Figure 6 This is a partial exploded view of the positioning component in a multi-mode lens switching mechanism proposed in this invention;

[0031] Figure 7 This is a schematic diagram of the propulsion pressure relief component in a multi-mode lens switching mechanism proposed in this invention;

[0032] Figure 8 This is a partial exploded view of the propulsion pressure relief component in a multi-mode lens switching mechanism proposed in this invention;

[0033] Figure 9 This is a schematic diagram of the bonding structure of a convex lens in a multi-mode lens switching mechanism proposed in this invention.

[0034] In the diagram: 1. First lens barrel; 2. Second lens barrel; 3. Connecting frame; 4. Planar glass; 5. Fixed axis; 6. Axle platform;

[0035] 7. Install the rotating frame; 71. Propulsion ring; 72. Connecting frame; 73. Install the ring;

[0036] 8. First convex lens; 9. Second convex lens; 10. Rotating ring; 11. Electromagnetic generator; 12. Magnet ring; 13. Connecting rod; 14. Insert rod; 15. Return spring; 16. First annular groove; 17. Ring block; 18. Slot; 19. Placement slot; 20. Spring slot; 21. Compression spring; 22. Push plate; 23. Sealing bag; 24. Elastic plate; 25. End block; 26. Second annular groove. Detailed Implementation

[0037] Reference Figures 1-9 A multi-mode lens switching mechanism includes a first lens tube 1 and a second lens tube 2. The first lens tube 1 and the second lens tube 2 are coaxially arranged and connected by a connecting frame 3. A flat glass 4 is installed at the opposite ends of the first lens tube 1 and the second lens tube 2. Therefore, the first lens tube 1 and the second lens tube 2 will be coaxially set to provide linear observation conditions for the optical observation of the lens.

[0038] There are two mounting brackets 7 that rotate between the first mirror tube 1 and the second mirror tube 2. The mounting brackets 7 rotate between the first mirror tube 1 and the second mirror tube 2 via a fixed shaft 5. It should be noted that the rotation of the mounting brackets 7 between the first mirror tube 1 and the second mirror tube 2 serves to switch the type of observation lens. The fixed shaft 5 is fixed to the outer wall of the first mirror tube 1 and the second mirror tube 2 directly below the connecting frame 3 via a shaft platform 6. The mounting brackets 7 rotate coaxially on the fixed shaft 5, thus providing support for the rotation of the mounting brackets 7 and ensuring stable operation of the rotation of the mounting brackets 7.

[0039] Reference Figure 1 and Figure 2 The mounting rotating frame 7 in the state includes a push ring 71 and a mounting ring 73. The push ring 71 is coaxially sleeved on the outer wall of the fixed shaft 5. Multiple mounting rings 73 are provided. Therefore, when the push ring 71 is driven to rotate, the mounting rings 73 can be driven to rotate together.

[0040] The mounting rings 73 are circumferentially and equidistantly arranged on the outer wall of the propulsion ring 71, and the mounting rings 73 and the propulsion ring 71 are connected by a connecting frame 72. It should be noted that when the propulsion ring 71 rotates and drives the mounting rings 73 to rotate together, the mounting rings 73 will stop when they are located between the first lens barrel 1 and the second lens barrel 2. At this time, the mounting rings 73 are coaxially arranged with the first lens barrel 1 and the second lens barrel 2. Therefore, as the propulsion ring 71 rotates, multiple mounting rings 73 can be rotated to the position between the first lens barrel 1 and the second lens barrel 2. Then, by combining the mounting rings 73 with different convex lens assemblies, convex lens assemblies with different focal lengths can be formed. The mounting rotation frame 7 is equipped with convex lens assemblies.

[0041] The first convex lens 8 and the second convex lens 9 are both convex lenses with a curved surface on one side and a flat surface on the other side. The first convex lens 8 and the second convex lens 9 have the same plane radius but different curvatures of their surfaces. Therefore, by selecting different convex lenses, the planes of the convex lenses are made to fit together to form a matching convex lens, thereby realizing the switching of convex lenses and ultimately changing the focal length to meet the required convex lens requirements.

[0042] The convex lens assembly includes a first convex lens 8 and a second convex lens 9, as shown in the reference. Figure 9The schematic diagram shows that when the two first convex lenses 8 are in contact with each other to form a mating convex lens, the focal length is F2. When one of the mounting brackets 7 is rotated, one of the two first convex lenses 8 is disengaged, allowing the second convex lens 9 to be in contact with the first convex lens 8. At this time, the focal length is F1. Since the curvature of the first convex lens 8 is greater than that of the second convex lens 9, the focal length F1 is longer than the focal length F2. Therefore, the convex lens assembly can be selected and switched according to different needs, thereby changing the focal length by switching the lens, and finally achieving the desired convex lens optical effect.

[0043] The fixed shaft 5 is equipped with a positioning mechanism that drives the rotating mounting bracket 7 to rotate and position. This positioning mechanism is used to position the rotating mounting bracket 7, allowing the mounting ring 73 to rotate to a position between the first lens barrel 1 and the second lens barrel 2 and be positioned. At this time, the mounting ring 73, the first lens barrel 1, and the second lens barrel 2 are coaxially arranged. The positioning mechanism is used to fix the two mounting rings 73, preventing the mounting rings 73 from moving during use, thereby ensuring that the convex lens assembly located in the mounting ring 73 is stably present.

[0044] The positioning mechanism includes a rotating ring 10, which is coaxially sleeved on the outer wall of the fixed shaft 5. The rotating ring 10 rotates on the outer wall of the fixed shaft 5 through the first ring groove 16 and the ring block 17, thus enabling the rotating ring 10 to rotate stably on the outer wall of the fixed shaft 5. Multiple connecting rods 13 are inserted through the rotating ring 10. One end of the connecting rod 13 is fixedly connected to the push ring 71. Therefore, when the rotating ring 10 is turned to rotate on the fixed shaft 5, since the connecting rod 13 is inserted through the rotating ring 10 and connected to the push ring 71, the rotating ring 10 will rotate synchronously with the push ring 71 during the rotation process, thus realizing the rotation switching of the mounting ring 73 between the first lens barrel 1 and the second lens barrel 2.

[0045] Since different types of convex lenses are installed on the multiple mounting rings 73 on the propulsion ring 71, the two mounting rings 73 can be combined in various ways to achieve the function of forming convex lenses with different focal lengths.

[0046] Reference Figure 5 and Figure 6In this state, the positioning mechanism also includes a rod 14, which slides radially through the through hole on the rotating ring 10. The rod 14 is reset and extended within the through hole by a return spring 15. Therefore, before moving the rotating ring 10, the rod 14 needs to be pulled upward to disengage it from the slot 18, thus releasing the positioning effect between the rotating ring 10 and the outer wall of the fixed shaft 5. Then, during the rotation, the rod 14 is released. At this time, the rod 14 is pressed against the outer wall of the fixed shaft 5 under the action of the return spring 15. Then, the rotating ring 10 is moved further. When the rod 14 moves directly above the next slot 18, it will be re-inserted into the next slot 18 under the action of the return spring 15, thus completing the repositioning of the rotating ring 10.

[0047] The outer wall of the fixed shaft 5 has a slot 18 that corresponds to the position of the mounting ring 73. That is, the vertical plane where the slot 18 and the mounting ring 73 are located is parallel to the axis of the fixed shaft 5. Therefore, with the rotation of the rotating ring 10 and the insertion of the insertion rod 14 into the slot 18, the mounting ring 73 can be located between the first lens barrel 1 and the second lens barrel 2, so that the mounting ring 73 is coaxially set between the first lens barrel 1 and the second lens barrel 2.

[0048] When switching between the two mounting rings 73, the two mounting rings 73 and the convex lens assembly are fixed between the first lens barrel 1 and the second lens barrel 2. In order to ensure the accuracy of visual observation by the convex lens assembly, it is necessary to promptly bring the two originally separate convex lens assemblies together to form a new mating convex lens. Therefore, the original coaxial first convex lens 8 and second convex lens 9 are brought together. Thus, the first convex lens 8 and second convex lens 9 need to be brought close to each other. The other end of the connecting rod 13 is fixed with a magnetic ring 12 sleeved on the outer wall of the fixed shaft 5. Both ends of the fixed shaft 5 are provided with electromagnetic generators 11 that attract and repel the magnetic rings 12. The electromagnetic generator 11 generates a magnetic field by current flowing through a spiral coil. This device is existing technology and will not be described in detail here. Therefore, by turning on the electromagnetic generator 11, the electromagnetic generator 11 generates the same magnetic field as the magnetic ring 12, which will push the magnetic rings 12 at both ends of the fixed shaft 5 to bring the push rings 71 closer to each other through the connecting rod 13, thereby completing the bringing of the convex lens assemblies closer together.

[0049] The fixed shaft 5 is also equipped with a push-and-release component that pushes the convex lens assembly on the mounting rotating frame 7 to fit together. This push-and-release component is used to effectively buffer the convex lens assemblies that are approaching each other, and to prevent the two convex lens assemblies from being damaged by the force of mutual collision during the pushing and approaching process. Therefore, it is necessary to push the convex lens assemblies that are approaching each other slowly, so that the two convex lens assemblies can achieve non-collision contact.

[0050] Reference Figure 7 and Figure 8In this configuration, a sealing bag 23 is provided between the two propulsion rings 71, and the sealing bag 23 is filled with a non-Newtonian liquid. Therefore, when the two propulsion rings 71 suddenly approach each other, the non-Newtonian liquid in the sealing bag 23 will be squeezed first. This not only buffers the approach of the two propulsion rings 71 and slows down the propulsion of the propulsion rings 71, but also allows the two propulsion rings 71 to slowly squeeze the non-Newtonian liquid in the sealing bag 23, ultimately allowing the two propulsion rings 71 to slowly approach each other, thereby achieving a slow approach of the propulsion rings 71 and protecting the convex lens assembly from impact.

[0051] Each of the two propulsion rings 71 has a second annular groove 26 at its opposite ends. An elastic plate 24 is placed on the sealing bag 23, and the two ends of the elastic plate 24 slide in the second annular groove 26 through the end blocks 25. When it is necessary to rotate and switch the convex lens assembly, the convex lens assembly that was originally attached to each other needs to be separated first. It should be noted that this setting not only does not hinder the rotation of the propulsion ring 71 on the fixed shaft 5, but also makes the electromagnetic generator 11 face the opposite magnetic field of the magnet ring 12, which will drive the magnet rings 12 at both ends of the fixed shaft 5 to move away from each other through the connecting rod 13.

[0052] Furthermore, when the propulsion rings 71 move away from each other, the elastic plate 24 will press down on the stretched sealing bag 23, allowing the non-Newtonian liquid inside the sealing bag 23 to return to its original position, facilitating the next buffer deceleration.

[0053] Reference Figure 3 and Figure 4 In the state, the pressure relief assembly includes a mounting groove 19, which is disposed on the mounting ring 73. The first convex lens 8 and the second convex lens 9 are placed in the mounting groove 19. The outer walls of the first convex lens 8 and the second convex lens 9 are provided with a push plate 22, and the push plate 22 slides on the mounting ring 73 through the spring groove 20. Therefore, the first convex lens 8 and the second convex lens 9 can slide stably on the mounting ring 73 through the push plate 22 and the spring groove 20.

[0054] The spring groove 20 is equipped with a compression spring 21 that pushes the first convex lens 8 and the second convex lens 9 out of the mounting groove 19. It should be noted that since the first convex lens 8 and the second convex lens 9 protrude from the mounting groove 19, the final effect of the two mounting rings 73 approaching each other and sticking together is that during the process of the two mounting rings 73 approaching each other, the first convex lens 8 and the second convex lens 9 protruding from the mounting groove 19 will stick together first. If the first convex lens 8 and the second convex lens 9 do not protrude from the mounting groove 19, there will be a gap between the first convex lens 8 and the second convex lens 9 after the two mounting rings 73 approach each other and stick together, which will affect the light of optical observation.

[0055] An optical lens assembly includes an optical lens, which is a convex lens of various specifications, and is a convex lens with one side curved and the other side flat.

[0056] The working principle of this invention is as follows:

[0057] The first lens tube 1 and the second lens tube 2 are connected by a connecting bracket 3. Therefore, the first lens tube 1 and the second lens tube 2 will be coaxially set to provide linear observation conditions for the optical observation of the lens. Therefore, when the lens needs to be adjusted, the insert rod 14 needs to be pulled up first to disengage the insert rod 14 from the slot 18, that is, to release the positioning effect of the rotating ring 10 and the outer wall of the fixed shaft 5. Then, during the rotation, the insert rod 14 is released. At this time, the insert rod 14 is pressed against the outer wall of the fixed shaft 5 under the action of the return spring 15. Then, the rotating ring 10 is continued to be turned. When the insert rod 14 moves to the top of the next slot 18, the insert rod 14 will be re-inserted into the next slot 18 under the action of the return spring 15, thus completing the repositioning of the rotating ring 10.

[0058] Then, by turning on the electromagnetic generator 11, the electromagnetic generator 11 generates the same magnetic field as the magnetic ring 12, which will push the magnetic rings 12 at both ends of the fixed shaft 5 to move closer to each other through the connecting rod 13 and the push ring 71, thereby completing the convex lens assembly to move closer and fit together. The two convex lens assemblies are damaged due to the force of mutual collision, so it is necessary to slowly push the convex lens assemblies that are moving closer to each other, so that the two convex lens assemblies can finally achieve non-collision contact.

[0059] During the sudden approach of the two propulsion rings 71, the non-Newtonian liquid in the sealed bag 23 will be squeezed first. This not only buffers the approach of the two propulsion rings 71 and slows down the propulsion of the propulsion rings 71, but also allows the two propulsion rings 71 to slowly squeeze the non-Newtonian liquid in the sealed bag 23, eventually allowing the two propulsion rings 71 to slowly approach each other, thus achieving the slow approach of the propulsion rings 71 and protecting the convex lens assembly from impact.

[0060] The first convex lens 8 and the second convex lens 9 protrude from the mounting groove 19. Therefore, as the advancing rings 71 approach each other, the final effect is that the two mounting rings 73 approach and stick together. Thus, as the two mounting rings 73 approach each other, the first convex lens 8 and the second convex lens 9 protruding from the mounting groove 19 will stick together first. If the first convex lens 8 and the second convex lens 9 do not protrude from the mounting groove 19, there will be a gap between the first convex lens 8 and the second convex lens 9 after the two mounting rings 73 approach and stick together, which will affect the light of optical observation.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-mode lens switching mechanism, comprising a first lens barrel and a second lens barrel, the first lens barrel and the second lens barrel being coaxially arranged, and the first lens barrel and the second lens barrel being connected by a connecting bracket, characterized in that, Two mounting brackets rotate between the first and second lens barrels. Each mounting bracket rotates between the first and second lens barrels via a fixed shaft. A convex lens assembly, including a first convex lens and a second convex lens, is mounted on the mounting bracket. The fixed shaft is equipped with a positioning mechanism that drives the mounting brackets to rotate and position themselves. The fixed shaft also has a push-and-release assembly that pushes the convex lens assembly on the mounting brackets to engage with the lens barrels. The mounting brackets include: The propulsion ring is coaxially sleeved on the outer wall of the fixed shaft. The mounting rings are arranged in multiples, and are circumferentially and equidistantly on the outer wall of the propulsion ring. The mounting rings and the propulsion ring are connected by a connecting frame. The propulsion pressure relief assembly includes a mounting slot, which is set on the mounting ring. A first convex lens and a second convex lens are placed in the mounting slot. Both the outer walls of the first convex lens and the second convex lens are provided with a propulsion plate, and the propulsion plate slides on the mounting ring through a spring groove. A compression spring is provided in the spring groove to push the first convex lens and the second convex lens out of the mounting slot.

2. The multi-mode lens switching mechanism according to claim 1, characterized in that, The fixed shaft is fixed to the outer wall of the first and second lens tubes directly below the connecting frame via a shaft platform, and the rotating frame is mounted on the fixed shaft and rotates coaxially.

3. The multi-mode lens switching mechanism according to claim 2, characterized in that, Both the first and second convex lenses are convex lenses with a curved surface on one side and a flat surface on the other side. The first and second convex lenses have the same plane radius but different curvatures of their surfaces.

4. The multi-mode lens switching mechanism according to claim 3, characterized in that, Positioning mechanisms include: A rotating ring is coaxially sleeved on the outer wall of the fixed shaft, and the rotating ring rotates on the outer wall of the fixed shaft through the first ring groove and the ring block. The insertion rod slides radially through the through hole on the rotating ring, and the insertion rod is reset and extended within the through hole by a return spring. The outer wall of the fixed shaft has slots that correspond one-to-one with the positions of the mounting rings.

5. A multi-mode lens switching mechanism according to claim 4, characterized in that, Multiple connecting rods are inserted through the rotating ring. One end of the connecting rod is fixedly connected to the propulsion ring, and the other end of the connecting rod is fixed with a magnetic ring sleeved on the outer wall of the fixed shaft.

6. A multi-mode lens switching mechanism according to claim 5, characterized in that, Both ends of the fixed shaft are equipped with electromagnetic generators that attract and repel the magnetic rings.

7. A multi-mode lens switching mechanism according to claim 6, characterized in that, A sealing bag is provided between the two propulsion rings, and the sealing bag is filled with a non-Newtonian liquid. A second ring groove is opened at the opposite ends of the two propulsion rings. An elastic plate is placed on the sealing bag, and the two ends of the elastic plate slide in the second ring groove through end blocks.

8. A multi-mode lens switching mechanism according to claim 7, characterized in that, The convex lens assembly includes an optical lens.

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