focusing mechanism

Abstract

The utility model relates to lens assembly technical field discloses a focusing mechanism, including Chart module and focusing module, Chart module includes first height adjusting mechanism and Chart subassembly, and first height adjusting mechanism is used for adjusting the height of Chart subassembly, focusing module includes second height adjusting mechanism and focusing subassembly, and second height adjusting mechanism is used for adjusting the height of focusing subassembly, and focusing subassembly is located Chart subassembly below, and focusing subassembly includes the distance -increasing mirror subassembly and clamping subassembly that set gradually from top to bottom, Chart subassembly, distance -increasing mirror subassembly and clamping subassembly are opposite and set up, and clamping subassembly is used for clamping lens module and drives lens module to rotate to focus on lens module. The height of Chart subassembly is adjusted through first height adjusting mechanism to thereby need not to set parallel light pipe structure, the height of focusing subassembly is adjusted through second height adjusting mechanism to thereby be convenient for adjusting the position of clamping subassembly clamping lens module, guarantee the stability of focusing, improved efficiency and product yield.

Description

Technical Field

[0001] This utility model relates to the field of lens assembly technology, and in particular to a focusing mechanism. Background Technology

[0002] With the development of technology, lenses have been widely used in many fields, such as laptops, mobile phones, tablets, and LiDAR. The lens production process involves lens assembly, which requires focusing. Currently, the existing focusing methods mostly involve operators manually rotating the lens to focus, which is inefficient and has a high product defect rate, failing to meet usage requirements. Utility Model Content

[0003] The purpose of this invention is to propose a focusing mechanism that solves the technical problems of low efficiency, high product defect rate, and inability to meet usage requirements in the existing manual focusing technology.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model provides a focusing mechanism, including:

[0006] The Chart module includes a first height adjustment mechanism and a Chart component, wherein the first height adjustment mechanism is used to adjust the height of the Chart component.

[0007] The focusing module includes a second height adjustment mechanism and a focusing component. The second height adjustment mechanism is used to adjust the height of the focusing component. The focusing component is located below the chart component. The focusing component includes a teleconverter component and a clamping component arranged sequentially from top to bottom. The chart component, the teleconverter component, and the clamping component are arranged facing each other. The clamping component is used to clamp the lens module and drive the lens module to rotate in order to focus the lens module.

[0008] The focusing mechanism includes a chart module and a focusing module. The chart module includes a first height adjustment mechanism and a chart component. The height of the chart component is adjusted by the first height adjustment mechanism, thus eliminating the need for a collimator structure. The focusing module includes a second height adjustment mechanism and a focusing component. The height of the focusing component is adjusted by the second height adjustment mechanism, thereby facilitating the adjustment of the position of the clamping component holding the lens module, ensuring focusing stability, and improving efficiency and product yield.

[0009] As a preferred embodiment of the above-mentioned focusing mechanism, the first end of the focusing component is connected to the output end of the second height adjustment mechanism, the second end of the focusing component extends away from the second height adjustment mechanism, and the focusing module further includes a weight-balancing module, which is disposed at the first end of the focusing component, and the weight-balancing module and the second end of the focusing component are respectively located on both sides of the second height adjustment mechanism.

[0010] The weight-balancing module helps maintain the balance of the focusing components and improves the focusing accuracy of the lens module.

[0011] As a preferred embodiment of the above-mentioned focusing mechanism, the focusing module further includes a support frame, and the focusing assembly further includes a mounting plate. One end of the mounting plate and one end of the teleconverter assembly are both slidably mounted on the support frame in the vertical direction, and the two move synchronously. The output end of the second height adjustment mechanism is connected to one end of the mounting plate. The other end of the mounting plate is provided with a mounting hole. At least a portion of the structure of the teleconverter assembly extends into the mounting hole. The clamping assembly is rotatably disposed on the bottom of the mounting plate and is correspondingly disposed with the mounting hole. The weight-balancing module is disposed on the end of the mounting plate without the mounting hole. The weight-balancing module is slidably mounted on the support frame in the vertical direction and moves synchronously with the teleconverter assembly and the clamping assembly.

[0012] The above settings enable the weight-balancing module to maintain balance during the lifting and lowering movement of the focusing assembly, thereby improving the focusing accuracy.

[0013] As a preferred embodiment of the above-mentioned focusing mechanism, the clamping assembly includes a gripper assembly and a rotation drive mechanism. The gripper assembly is movably disposed at the bottom of the mounting plate for gripping or releasing the lens module, and the rotation drive mechanism is used to drive the gripper assembly to rotate the lens module.

[0014] The gripper assembly is used to hold or release the lens module, and the rotation drive mechanism is used to drive the gripper assembly to rotate the lens module for focusing.

[0015] As a preferred embodiment of the above-mentioned focusing mechanism, a rotating sleeve is rotatably disposed in the mounting hole, the gripper assembly is installed at the bottom of the rotating sleeve, and the rotation drive mechanism is used to drive the rotating sleeve to rotate, thereby driving the gripper assembly to rotate.

[0016] By setting a rotating sleeve inside the mounting hole, the gripper assembly is located at the bottom of the rotating sleeve. The rotating sleeve is driven to rotate by a rotation drive mechanism, thereby driving the gripper assembly to rotate, thus achieving focusing. Moreover, the structure of the rotating sleeve will not interfere with the image captured by the lens module.

[0017] As a preferred embodiment of the aforementioned focusing mechanism, the gripper assembly includes two clamping members that can move closer to or further away from each other to clamp or release the lens module.

[0018] The two grippers of the gripper assembly can move closer or further apart to grip or release the lens module, facilitating the fixing and unlocking of the lens module.

[0019] As a preferred embodiment of the above-mentioned focusing mechanism, the gripper assembly further includes a position adjustment seat, which includes two sets of support bases. The two sets of support bases are spaced apart at the bottom of the rotating sleeve. Each set of support bases is provided with a set of displacement sliders that slide along a first direction. The support base is provided with a first driving mechanism, which is used to drive the corresponding displacement sliders to move along the first direction.

[0020] The two ends of the two clamping members are respectively disposed on the displacement slider. The clamping members are slidably disposed on the displacement slider along the second direction. Each set of clamping members is provided with a second driving mechanism. The second driving mechanism is used to drive the corresponding clamping member to move along the second direction, which is perpendicular to the first direction.

[0021] The position adjustment seat allows the two clamping parts to move closer or further apart, thus enabling the clamping and release of the lens module.

[0022] As a preferred embodiment of the aforementioned focusing mechanism, the Chart module further includes a support frame, the Chart component is movably disposed on the support frame in a vertical direction, the first height adjustment mechanism is installed on the support frame, and the output end of the first height adjustment mechanism is connected to the Chart component in a transmission connection to drive the Chart component to move in a vertical direction.

[0023] The chart component is supported by a support frame and moves vertically within the support frame. The chart component is driven to move vertically by a first height adjustment mechanism to adjust its position, thus eliminating the need for a parallel light tube structure and simplifying the structure.

[0024] As a preferred embodiment of the above-mentioned focusing mechanism, the first height adjustment mechanism includes: a drive motor and a transmission assembly. The transmission assembly includes a rotating rod, an auxiliary rod, and a transmission belt. The rotating rod and the auxiliary rod pass through the Chart assembly and are threadedly connected to the Chart assembly. The transmission belt is sleeved on a transmission wheel located at the end of the rotating rod and the auxiliary rod. The output end of the drive motor is connected to the rotating rod to drive the rotating rod to rotate the auxiliary rod, thereby causing the Chart assembly to rise and fall.

[0025] The aforementioned first height adjustment mechanism has a simple structure and can achieve smooth vertical lifting and lowering of the Chart component.

[0026] As a preferred embodiment of the aforementioned focusing mechanism, the Chart component includes:

[0027] A backlight module is slidably mounted on the support frame in a vertical direction. The output end of the first height adjustment mechanism is connected to the backlight module in a transmission connection to drive the backlight module to rise and fall.

[0028] The Screen module is located inside the backlight module and is used to place the Chart image target for the lens module to capture.

[0029] The backlight module provides illumination for the screen module to capture chart images of the target, improving image clarity. The lens module adjusts focus based on the graphic information of the captured chart image target.

[0030] The beneficial effects of this utility model are:

[0031] The focusing mechanism proposed in this utility model includes a chart module and a focusing module. The chart module includes a first height adjustment mechanism and a chart component. The height of the chart component is adjusted by the first height adjustment mechanism, thereby eliminating the need for a collimator structure. The focusing module includes a second height adjustment mechanism and a focusing component. The height of the focusing component is adjusted by the second height adjustment mechanism, thereby facilitating the adjustment of the position of the clamping component holding the lens module, ensuring focusing stability, and improving efficiency and product yield. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the focusing mechanism provided by this utility model;

[0033] Figure 2 This is a schematic diagram of the focusing mechanism provided by this utility model after the support bracket has been removed;

[0034] Figure 3This is a first structural schematic diagram of the focusing module provided by this utility model;

[0035] Figure 4 This is a schematic diagram of the second structure of the focusing module provided by this utility model;

[0036] Figure 5 This is a first structural schematic diagram of the gripper assembly provided by this utility model;

[0037] Figure 6 This is a schematic diagram of the second structure of the gripper assembly provided by this utility model;

[0038] Figure 7 This is a schematic diagram of the third structure of the gripper assembly provided by this utility model;

[0039] Figure 8 This is a schematic diagram of the Chart module provided by this utility model.

[0040] In the picture:

[0041] 1. Chart module; 11. First height adjustment mechanism; 111. Drive motor; 1121. Rotating rod; 1122. Auxiliary rod; 1123. Transmission belt; 12. Chart assembly; 121. Backlight module; 13. Support frame;

[0042] 2. Focusing module; 20. Support frame; 21. Second height adjustment mechanism; 22. Focusing assembly; 220. Mounting plate; 2201. Mounting hole; 221. Teleconverter assembly; 2211. Support frame body; 2212. Teleconverter; 222. Clamping assembly; 2221. Claw assembly; 22211. Clamping piece; 22212. Support base; 22213. Displacement slider; 22214. First drive mechanism; 22215. Second drive mechanism; 2222. Rotation drive mechanism; 22221. Drive wheel; 22222. Conveyor belt; 224. Rotating sleeve; 23. Weight-adding balance module; 24. Guide assembly;

[0043] 3. Bracket. Detailed Implementation

[0044] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0048] like Figure 1 and Figure 2 As shown, this embodiment provides a focusing mechanism, including a Chart module 1 and a focusing module 2. The Chart module 1 includes a first height adjustment mechanism 11 and a Chart component 12. The first height adjustment mechanism 11 is used to adjust the height of the Chart component 12. The focusing module 2 includes a second height adjustment mechanism 21 and a focusing component 22. The second height adjustment mechanism 21 is used to adjust the height of the focusing component 22. The focusing component 22 is located below the Chart component 12. The focusing component 22 includes a teleconverter component 221 and a clamping component 222 arranged sequentially from top to bottom. The Chart component 12, the teleconverter component 221, and the clamping component 222 are arranged facing each other. The clamping component 222 is used to clamp the lens module and drive the lens module to rotate, so as to focus the lens module.

[0049] The focusing mechanism includes a Chart module 1 and a focusing module 2. The Chart module 1 includes a first height adjustment mechanism 11 and a Chart component 12. The height of the Chart component 12 is adjusted by the first height adjustment mechanism 11, thus eliminating the need for a collimator structure. The focusing module 2 includes a second height adjustment mechanism 21 and a focusing component 22. The height of the focusing component 22 is adjusted by the second height adjustment mechanism 21, thereby facilitating the adjustment of the position of the clamping component 222 clamping the lens module, ensuring focusing stability, and improving efficiency and product yield.

[0050] like Figure 1 As shown, the focusing mechanism also includes a bracket 3. The Chart module 1 and the focusing module 2 are both mounted on the bracket 3, and the bracket 3 supports the Chart module 1 and the focusing module 2.

[0051] like Figure 3 As shown, the first end of the focusing assembly 22 is connected to the output end of the second height adjustment mechanism 21, and the second end of the focusing assembly 22 extends away from the second height adjustment mechanism 21. The focusing mechanism also includes a weight-balancing module 23, which is disposed at the first end of the focusing assembly 22, and the weight-balancing module 23 and the second end of the focusing assembly 22 are respectively located on both sides of the second height adjustment mechanism 21. The weight-balancing module 23 can maintain the balance of the focusing assembly 22 and improve the focusing accuracy of the lens module.

[0052] Furthermore, such as Figure 3 and Figure 4 As shown, the focusing module 2 also includes a support frame 20, which is mounted on the bracket 3. The focusing assembly 22 also includes a mounting plate 220. One end of the mounting plate 220 and the teleconverter assembly 221 are both slidably mounted on the support frame 20 in the vertical direction, and the two move synchronously. The output end of the second height adjustment mechanism 21 is connected to one end of the mounting plate 220. The other end of the mounting plate 220 is provided with a mounting hole 2201. At least a part of the structure of the teleconverter assembly 221 extends into the mounting hole 2201. The clamping assembly 222 is rotatably mounted on the bottom of the mounting plate 220 and is correspondingly set with the mounting hole 2201. The weight-adding balance module 23 is set on the end of the mounting plate 220 that is not provided with the mounting hole 2201. The weight-adding balance module 23 is slidably mounted on the support frame 20 in the vertical direction and moves synchronously with the teleconverter assembly 221 and the clamping assembly 222. The above settings enable the weight-balancing module 23 to maintain balance during the lifting and lowering movement of the focusing assembly 22, thereby improving the focusing accuracy.

[0053] Specifically, the teleconverter assembly 221 includes a support frame 2211 and a teleconverter 2212. One end of the support frame 2211 is slidably mounted on the support frame 20 and rises and falls synchronously with the mounting plate 220. The other end is provided with a limiting hole, and the teleconverter 2212 is limited within the limiting hole. The teleconverter 2212 is correspondingly positioned with the mounting hole 2201. Figure 4 As shown, a guide assembly 24 is provided on the support frame 20. The guide assembly 24 includes a guide wheel set and a winding line. The winding line is wound around the guide wheel set, with one end connected to the weight-adding balancing module 23 and the other end connected to the mounting plate 220. The weight-adding balancing module 23 not only provides balance but also reduces the force required for the focusing assembly 22 to reset. The guide wheel set is used to change the direction of the winding line, thus providing guidance.

[0054] Optionally, the clamping assembly 222 includes a gripper assembly 2221 and a rotation drive mechanism 2222. The gripper assembly 2221 is movably disposed at the bottom of the mounting plate 220 for gripping or releasing the lens module. The rotation drive mechanism 2222 drives the gripper assembly 2221 to rotate the lens module. The gripper assembly 2221 grips or releases the lens module, and the rotation drive mechanism 2222 drives the gripper assembly 2221 to rotate the lens module to facilitate focusing.

[0055] Optionally, a rotating sleeve 224 is rotatably disposed within the mounting hole 2201, and a gripper assembly 2221 is mounted on the bottom of the rotating sleeve 224. A rotation drive mechanism 2222 is used to drive the rotating sleeve 224 to rotate, thereby causing the gripper assembly 2221 to rotate. By providing a rotating sleeve 224 within the mounting hole 2201, and the gripper assembly 2221 being disposed on the bottom of the rotating sleeve 224, and by driving the rotating sleeve 224 to rotate via the rotation drive mechanism 2222, thereby causing the gripper assembly 2221 to rotate, focusing is achieved. Moreover, the structure of the rotating sleeve 224 will not interfere with the image captured by the lens module.

[0056] In this embodiment, the rotation drive mechanism 2222 includes a motor mounted on the mounting plate 220. A drive wheel 22221 is mounted on the output end of the motor. A conveyor belt 22222 is sleeved between the drive wheel 22221 and the rotating sleeve 224. The motor drives the drive wheel 22221 to rotate, which in turn drives the rotating sleeve 224 to rotate, thus achieving rotational drive of the rotating sleeve 224. In other embodiments, the rotation drive mechanism 2222 is not limited to the above structure; any mechanism capable of driving the rotation of the rotating sleeve 224 is acceptable.

[0057] Optionally, such as Figures 5-7As shown, the gripper assembly 2221 includes two gripping members 22211, which can move closer or further apart to grip or release the lens module. The ability of the two grippers of the gripper assembly 2221 to grip or release the lens module facilitates the fixing and unlocking of the lens module.

[0058] Optionally, the gripper assembly 2221 further includes a position adjustment seat, which includes two sets of support bases 22212. The two sets of support bases 22212 are spaced apart at the bottom of the rotating sleeve 224. Each set of support bases 22212 is provided with a set of displacement sliders 22213 that slide along a first direction. A first drive mechanism 22214 is provided on the support base 22212. The first drive mechanism 22214 is used to drive the corresponding displacement slider 22213 to move along the first direction. The two ends of the two clamping members 22211 are respectively provided on the displacement sliders 22213. The clamping members 22211 slide along the displacement sliders 22213 in a second direction. Each set of clamping members 22211 is provided with a corresponding set of second drive mechanisms 22215. The second drive mechanism 22215 is used to drive the corresponding clamping member 22211 to move along the second direction, which is perpendicular to the first direction. The position adjustment seat allows the two clamping parts 22211 to move closer or further apart, thus enabling the clamping and release of the lens module.

[0059] like Figure 8 As shown, the Chart module 1 also includes a support frame 13, which is mounted on the bracket 3. The Chart component 12 is vertically movable and positioned on the support frame 13. A first height adjustment mechanism 11 is mounted on the support frame 13, and its output is connected to the Chart component 12 to drive it to move vertically. By supporting the Chart component 12 with the support frame 13, and by driving it to move vertically with the first height adjustment mechanism 11, the position of the Chart component 12 can be adjusted. This eliminates the need for a parallel light tube structure, resulting in a simpler structure.

[0060] Optionally, the first height adjustment mechanism 11 includes a drive motor 111 and a transmission assembly. The transmission assembly includes a rotating rod 1121, an auxiliary rod 1122, and a transmission belt 1123. The rotating rod 1121 and the auxiliary rod 1122 pass through the chart assembly 12 and are threadedly connected to it. The transmission belt 1123 is sleeved on a transmission wheel located at the ends of the rotating rod 1121 and the auxiliary rod 1122. The output end of the drive motor 111 is connected to the rotating rod 1121 to drive the rotating rod 1121 to rotate the auxiliary rod 1122, thereby raising and lowering the chart assembly 12. The first height adjustment mechanism 11 described above has a simple structure and can achieve smooth raising and lowering of the chart assembly 12 in the vertical direction.

[0061] Optionally, the Chart component 12 includes a backlight module 121 and a Screen module. The backlight module 121 is slidably mounted on the support frame 13 in a vertical direction. The output end of the first height adjustment mechanism 11 is connected to the backlight module 121 to drive the backlight module 121 to rise and fall. The Screen module is located inside the backlight module 121 and is used to place the Chart image target for the lens module to capture. The backlight module 121 provides illumination for the lens module to capture the Chart image target from the Screen module, improving the image clarity. The lens module focuses based on the graphic information of the captured Chart image target.

[0062] In use, the gripper assembly 2221 holds the lens module, and the second height adjustment mechanism 21 adjusts the vertical position of the lens module. After it is moved into place, the rotation drive mechanism 2222 drives the rotating sleeve 224 clockwise or counterclockwise, and the lens module captures the image of the chart image target. The height of the lens module is adjusted in real time according to the graphic to ensure the stability of focusing.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A focusing mechanism, characterized in that, include: The Chart module (1) includes a first height adjustment mechanism (11) and a Chart component (12), wherein the first height adjustment mechanism (11) is used to adjust the height of the Chart component (12) in the vertical direction; The focusing module (2) includes a second height adjustment mechanism (21) and a focusing component (22). The second height adjustment mechanism (21) is used to adjust the height of the focusing component (22) in the vertical direction. The focusing component (22) is located below the Chart component (12). The focusing component (22) includes a teleconverter component (221) and a clamping component (222) arranged sequentially from top to bottom. The Chart component (12), the teleconverter component (221) and the clamping component (222) are arranged facing each other. The clamping component (222) is used to clamp the lens module and drive the lens module to rotate so as to focus the lens module.

2. The focusing mechanism according to claim 1, characterized in that, The first end of the focusing component (22) is connected to the output end of the second height adjustment mechanism (21) via a transmission. The second end of the focusing component (22) extends away from the second height adjustment mechanism (21). The focusing module (2) also includes a weight-balancing module (23). The weight-balancing module (23) is disposed at the first end of the focusing component (22), and the weight-balancing module (23) and the second end of the focusing component (22) are respectively located on both sides of the second height adjustment mechanism (21).

3. The focusing mechanism according to claim 2, characterized in that, The focusing module (2) further includes a support frame (20), and the focusing assembly (22) further includes a mounting plate (220). One end of the mounting plate (220) and one end of the teleconverter assembly (221) are both slidably mounted on the support frame (20) in the vertical direction, and they move synchronously. The output end of the second height adjustment mechanism (21) is connected to one end of the mounting plate (220). The other end of the mounting plate (220) is provided with a mounting hole (2201). The teleconverter assembly (221)... At least a portion of the structure extends into the mounting hole (2201). The clamping assembly (222) is rotatably disposed on the bottom of the mounting plate (220) and is disposed corresponding to the mounting hole (2201). The weight-increasing and balancing module (23) is disposed on the end of the mounting plate (220) where the mounting hole (2201) is not disposed. The weight-increasing and balancing module (23) is slidably mounted on the support frame (20) in the vertical direction and moves synchronously with the teleconverter assembly (221) and the clamping assembly (222).

4. The focusing mechanism according to claim 3, characterized in that, The clamping assembly (222) includes a gripper assembly (2221) and a rotation drive mechanism (2222). The gripper assembly (2221) is movably disposed at the bottom of the mounting plate (220) for clamping or releasing the lens module. The rotation drive mechanism (2222) is used to drive the gripper assembly (2221) to rotate the lens module.

5. The focusing mechanism according to claim 4, characterized in that, A rotating sleeve (224) is rotatably disposed inside the mounting hole (2201). The gripper assembly (2221) is installed at the bottom of the rotating sleeve (224). The rotation drive mechanism (2222) is used to drive the rotating sleeve (224) to rotate, thereby driving the gripper assembly (2221) to rotate.

6. The focusing mechanism according to claim 5, characterized in that, The gripper assembly (2221) includes two grippers (22211) that can move closer to or further away from each other to grip or release the lens module.

7. The focusing mechanism according to claim 6, characterized in that, The gripper assembly (2221) further includes a position adjustment seat, which includes two sets of support bases (22212). The two sets of support bases (22212) are spaced apart at the bottom of the rotating sleeve (224). Each set of support bases (22212) is provided with a set of displacement sliders (22213) that slide along a first direction. The support bases (22212) are provided with a first driving mechanism (22214), which is used to drive the corresponding displacement sliders (22213) to move along the first direction. The two ends of the two clamping members (22211) are respectively disposed on the displacement slider (22213). The clamping members (22211) are slidably disposed on the displacement slider (22213) along the second direction. Each set of clamping members (22211) is provided with a set of second driving mechanisms (22215). The second driving mechanism (22215) is used to drive the corresponding clamping member (22211) to move along the second direction, which is perpendicular to the first direction.

8. The focusing mechanism according to any one of claims 1-7, characterized in that, The Chart module (1) further includes a support frame (13), the Chart component (12) is movably disposed on the support frame (13) in the vertical direction, the first height adjustment mechanism (11) is installed on the support frame (13), and the output end of the first height adjustment mechanism (11) is connected to the Chart component (12) in a transmission connection to drive the Chart component (12) to move in the vertical direction.

9. The focusing mechanism according to claim 8, characterized in that, The first height adjustment mechanism (11) includes a drive motor (111) and a transmission assembly. The transmission assembly includes a rotating rod (1121), an auxiliary rod (1122), and a transmission belt (1123). The rotating rod (1121) and the auxiliary rod (1122) pass through the Chart assembly (12) and are threadedly connected to the Chart assembly (12). The transmission belt (1123) is sleeved on the transmission wheel located at the ends of the rotating rod (1121) and the auxiliary rod (1122). The output end of the drive motor (111) is connected to the rotating rod (1121) to drive the rotating rod (1121) to rotate the auxiliary rod (1122) so as to drive the Chart assembly (12) to rise and fall.

10. The focusing mechanism according to claim 8, characterized in that, The Chart component (12) includes: A backlight module (121) is slidably mounted on the support frame (13) in the vertical direction. The output end of the first height adjustment mechanism (11) is connected to the backlight module (121) in a transmission connection to drive the backlight module (121) to rise and fall. The Screen module is located inside the backlight module (121) and is used to place the Chart image target for the lens module to capture.

Images