Displacement platform of optical system

Abstract

The invention discloses a displacement platform of an optical system, and relates to the technical field of optics, the displacement platform of the optical system comprises a base, a screw rod and a driving assembly, the base is movably connected with an objective table; the lead screw is fixedly installed on the base, the objective table is provided with a transmission nut in the length direction of the lead screw, and the transmission nut is meshed with the lead screw. And the driving assembly is installed on the objective table and used for driving the transmission nut to rotate so as to control the objective table to move in the length direction of the lead screw. Compared with a common air cylinder or telescopic rod structure in the prior art, the moving precision of the objective table can be remarkably improved, meanwhile, the driving assembly is further arranged, the driving assembly can drive the transmission nut to rotate, and therefore an operator can effectively improve the moving precision of the objective table through the driving assembly.

Description

Technical Field

[0001] This invention relates to the field of optical technology, and in particular to a displacement platform for an optical system. Background Technology

[0002] In optical system assembly, debugging, and optical imaging experiments, it is often necessary to precisely adjust the positions of various optical components such as lenses, prisms, and mirrors to achieve optical detection or light control. In common optical system debugging, the position adjustment error of optical components generally needs to be controlled within the micrometer level. However, the commonly used position adjustment methods are all manual, resulting in poor adjustment accuracy and error controllability. This largely depends on the experience and skills of the operators, and there is a lack of automated equipment to assist in the implementation of related processes.

[0003] Among existing technical solutions, automated platforms capable of achieving high-precision displacement control include lead screw drives, magnetic levitation linear motors, voice coil motor modules, and piezoelectric ceramic drives. However, in these platforms, a single lead screw drive or voice coil motor module can only control one displacement slider; a single magnetic levitation linear motor module can control at most two displacement sliders simultaneously; and while piezoelectric ceramic drive platforms can achieve nanometer-level precision, their operating distance is limited, preventing long-distance movement. In optical system debugging, however, multiple components typically require displacement control, and each component needs to move independently within a large displacement range. Therefore, none of the above-mentioned technical solutions effectively meet the automated control requirements for optical system adjustment.

[0004] Currently, there is no available equipment for automated systems for optical system debugging, which severely restricts the efficiency of optical system debugging and assembly and the development of automated and standardized optical imaging experiments. Therefore, a displacement platform is needed that can control multiple displacement modules to move in the same or opposite directions in a single-axis motion direction with a motion accuracy down to the micrometer level, in order to improve the automation and efficiency of optical system adjustment and enable digital control of system assembly and adjustment errors. Summary of the Invention

[0005] The main objective of this invention is to propose a displacement platform for an optical system, which aims to improve the displacement accuracy of the displacement platform.

[0006] To achieve the above objectives, the present invention proposes a displacement platform for an optical system, comprising a base, a lead screw, and a drive assembly. The base is movably connected to a stage; the lead screw is fixedly mounted on the base; a transmission nut is mounted on the stage along the length of the lead screw, and the transmission nut engages with the lead screw; and the drive assembly is mounted on the stage, and the drive assembly is used to drive the transmission nut to rotate, thereby controlling the stage to move along the length of the lead screw.

[0007] In one embodiment, the displacement platform of the optical system further includes a guide rail and a slider. The guide rail is mounted on the base and is linearly arranged along the length direction of the lead screw. The slider is slidably connected to the guide rail, and the stage is mounted on the slider.

[0008] In one embodiment, a bearing is provided between the transmission nut and the stage, the transmission nut is fixedly connected to one of the outer ring and the inner ring of the bearing, and the stage is fixedly connected to the other of the outer ring and the inner ring of the bearing.

[0009] In one embodiment, a spacer ring is provided between the transmission nut and the bearing, and the transmission nut is fixedly connected to the outer ring or inner ring of the bearing through the spacer ring.

[0010] In one embodiment, the displacement platform of the optical system further includes a transmission worm gear and a transmission worm, the transmission worm gear being sleeved on the transmission nut and drivingly connected to the transmission nut; and the transmission worm engaging with the transmission worm gear; the drive assembly includes a drive motor, the drive motor driving the transmission worm gear to rotate via the transmission worm, thereby driving the transmission nut to rotate.

[0011] In one embodiment, the displacement platform of the optical system further includes a first bevel gear and a second bevel gear, the first bevel gear being mounted on the output shaft of the drive motor; and the second bevel gear being mounted on the drive worm gear, the second bevel gear meshing with the first bevel gear; the drive motor drives the second bevel gear to rotate via the first bevel gear, thereby driving the drive worm gear to rotate.

[0012] In one embodiment, the inner side of the transmission worm gear is connected to the transmission nut via a spline structure, the spline structure extending along the axial direction of the transmission nut; and / or, the inner wall of the transmission nut is provided with a plurality of dividing grooves arranged along the axial direction of the transmission nut, so as to divide the helical protrusions formed on the inner wall of the transmission nut into a plurality of helical segments.

[0013] In one embodiment, the transmission worm gear is connected to one side of the transmission nut via a spring; an annular end cap is provided on one side of the transmission worm gear, and the annular end cap is installed on the transmission worm gear via an adjusting screw. The end cap extends toward the transmission worm gear to form a protrusion to abut against the transmission nut. The spring is located on the opposite side of the transmission worm gear that contacts the annular end cap. The adjusting screw adjusts the pressure of the protrusion against the transmission nut to adjust the thread engagement clearance between the transmission nut and the lead screw.

[0014] In one embodiment, multiple adjusting screws are provided.

[0015] In one embodiment, the stage, the lead screw, the transmission nut, and the drive assembly are configured as structural groups in a one-to-one correspondence, and multiple structural groups are provided; and / or, the base includes a housing, and the lead screw, the transmission nut, and the drive assembly are all installed inside the housing.

[0016] The technical solution of this invention fixes a lead screw to a base and sets up a stage that engages with the lead screw via a transmission nut. This allows the rotation of the transmission nut to be converted into movement of the stage along the length of the lead screw. Compared to the cylinder or telescopic rod structure commonly used in the prior art, the engagement of the lead screw and the transmission nut significantly improves the accuracy of the stage's movement. Furthermore, this invention also includes a drive assembly that drives the transmission nut to rotate, thereby enabling the operator to effectively improve the movement accuracy of the stage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an embodiment of the displacement platform of the optical system provided by the present invention; Figure 2 For having Figure 1 Schematic diagram of the transmission nut; Figure 3 For having Figure 1 Schematic diagram of the lead screw structure; Figure 4 For having Figure 1 Exploded view of the transmission nut; Figure 5 For having Figure 1 Cross-sectional view of the transmission nut; Figure 6 A schematic diagram of another embodiment of the displacement platform of the optical system provided by the present invention.

[0019] Explanation of icon numbers: 100. Base; 111. Lead screw; 112. Guide rail; 113. Slider; 121. Outer shell; 200. Stage; 211. Transmission nut; 212. Bearing; 213. Spacer ring; 221. Transmission worm gear; 222. Transmission worm; 231. Drive motor; 241. First bevel gear; 242. Second bevel gear; 251. Spline structure; 252. Dividing groove; 253. Spring; 254. Annular end cap; 255. Adjusting screw.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] In optical system assembly, debugging, and optical imaging experiments, it is often necessary to precisely adjust the positions of various optical components such as lenses, prisms, and mirrors to achieve optical detection or light control. In common optical system debugging, the position adjustment error of optical components generally needs to be controlled within the micrometer level. However, the commonly used position adjustment methods are all manual, resulting in poor adjustment accuracy and error controllability. This largely depends on the experience and skills of the operators, and there is a lack of automated equipment to assist in the implementation of related processes.

[0025] Among existing technical solutions, automated platforms capable of achieving high-precision displacement control include lead screw drives, magnetic levitation linear motors, voice coil motor modules, and piezoelectric ceramic drives. However, in these platforms, a single lead screw drive or voice coil motor module can only control one displacement slider; a single magnetic levitation linear motor module can control at most two displacement sliders simultaneously; and while piezoelectric ceramic drive platforms can achieve nanometer-level precision, their operating distance is limited, preventing long-distance movement. In optical system debugging, however, multiple components typically require displacement control, and each component needs to move independently within a large displacement range. Therefore, none of the above-mentioned technical solutions effectively meet the automated control requirements for optical system adjustment.

[0026] Currently, there is no available equipment for automated systems for optical system debugging, which severely restricts the efficiency of optical system debugging and assembly and the development of automated and standardized optical imaging experiments. Therefore, a displacement platform is needed that can control multiple displacement modules to move in the same or opposite directions in a single-axis motion direction with a motion accuracy down to the micrometer level, in order to improve the automation and efficiency of optical system adjustment and enable digital control of system assembly and adjustment errors.

[0027] Therefore, the present invention proposes a displacement platform for an optical system.

[0028] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the displacement platform of the optical system includes a base 100, a lead screw 111, and a drive assembly. The base 100 is movably connected to a stage 200. The lead screw 111 is fixedly installed on the base 100. A transmission nut 211 is installed on the stage 200 along the length direction of the lead screw 111, and the transmission nut 211 meshes with the lead screw 111. The drive assembly is installed on the stage 200 and is used to drive the transmission nut 211 to rotate, thereby controlling the stage 200 to move along the length direction of the lead screw 111.

[0029] In this embodiment of the invention, by fixing a lead screw 111 to the base 100 and setting the stage 200 to mesh with the lead screw 111 via a transmission nut 211, the rotation of the transmission nut 211 can be converted into movement of the stage 200 along the length direction of the lead screw 111. Compared with the cylinder or telescopic rod structure commonly used in the prior art, the cooperation between the lead screw 111 and the transmission nut 211 can significantly improve the movement accuracy of the stage 200. At the same time, this embodiment also provides a drive assembly, which can drive the transmission nut 211 to rotate, thereby enabling the operator to effectively improve the movement accuracy of the stage 200 through the drive assembly.

[0030] It should be noted that the drive component can be a drive motor or a drive cylinder or other commonly used drive mechanism.

[0031] In one embodiment, the displacement platform of the optical system further includes a guide rail 112 and a slider 113. The guide rail 112 is mounted on the base 100 and is arranged linearly along the length direction of the lead screw 111. The slider 113 is slidably connected to the guide rail 112 and a stage 200 is mounted on the slider 113.

[0032] In an embodiment of the present invention, a guide rail 112 and a slider 113 are provided. The stage 200 is mounted on the slider 113, and the movement of the stage 200 can be limited and supported by the slider 113 in conjunction with the guide rail 112.

[0033] See Figure 3 In one embodiment, a bearing 212 is provided between the transmission nut 211 and the stage 200. The transmission nut 211 is fixedly connected to one of the outer ring and the inner ring of the bearing 212, and the stage 200 is fixedly connected to the other of the outer ring and the inner ring of the bearing 212.

[0034] In an embodiment of the present invention, by providing a bearing 212 between the transmission nut 211 and the platform 200, the rotation of the transmission nut 211 can prevent the platform 200 from rotating, making the connection between the platform 200 and the transmission nut 211 more reliable.

[0035] It should be noted that in this embodiment, the transmission nut 211 can be fixedly connected to the inner ring of the bearing 212, and the platform 200 can be fixedly connected to the outer ring of the bearing 212; alternatively, the transmission nut 211 can be fixedly connected to the outer ring of the bearing 212, and the platform 200 can be fixedly connected to the inner ring of the bearing 212. This invention does not limit the specific connection.

[0036] See Figure 3In one embodiment, a spacer ring 213 is provided between the transmission nut 211 and the bearing 212, and the transmission nut 211 is fixedly connected to the outer ring or inner ring of the bearing 212 through the spacer ring 213.

[0037] In an embodiment of the present invention, a spacer ring 213 is installed between the transmission nut 211 and the bearing 212, which can adjust the interval between the transmission nut 211 and the platform 200, making the installation and arrangement of the platform 200 in this embodiment more convenient.

[0038] It should be noted that in this embodiment, the spacer ring 213 can be fixedly connected to the inner ring of the bearing 212, and the stage 200 can be fixedly connected to the outer ring of the bearing 212; alternatively, the spacer ring 213 can be fixedly connected to the outer ring of the bearing 212, and the stage 200 can be fixedly connected to the inner ring of the bearing 212. This invention does not limit the specific connection.

[0039] In one embodiment, the displacement platform of the optical system further includes a transmission worm gear 221 and a transmission worm 222. The transmission worm gear 221 is sleeved on the transmission nut 211 and is connected to the transmission nut 211 in a transmission manner. The transmission worm 222 is meshed with the transmission worm gear 221. The drive assembly includes a transmission motor 231, which drives the transmission worm gear 221 to rotate through the transmission worm 222, thereby driving the transmission nut 211 to rotate.

[0040] In an embodiment of the present invention, the drive motor 231 can drive the worm wheel to rotate through the worm gear, and the drive worm wheel 221 is sleeved on the drive nut 211 and connected in transmission, so that the drive motor 231 can drive the drive nut 211 to rotate under the cooperation of the drive worm wheel 221 and the drive worm 222, thereby controlling the platform 200 to move along the length direction of the lead screw 111. The worm wheel and the worm gear can further increase the reduction ratio, so that the drive assembly can control the movement of the platform 200 more accurately.

[0041] In one embodiment, the displacement platform of the optical system further includes a first bevel gear 241 and a second bevel gear 242. The first bevel gear 241 is mounted on the output shaft of the drive motor 231; and the second bevel gear 242 is mounted on the drive worm gear 222, and the second bevel gear 242 meshes with the first bevel gear 241. The drive motor 231 drives the second bevel gear 242 to rotate through the first bevel gear 241, thereby driving the drive worm gear 222 to rotate.

[0042] In embodiments of the present invention, a first bevel gear 241 and a second bevel gear 242 are also provided, which can further improve the moving accuracy of the stage 200 by adjusting the transmission ratio of the first bevel gear 241 and the second bevel gear 242.

[0043] It should be noted that the transmission ratio of the first bevel gear 241 to the second bevel gear 242, the transmission ratio of the transmission worm gear 221 to the transmission worm 222, and the lead of the lead screw 111 in this embodiment can all be set according to the actual transmission accuracy requirements. Specifically, in this embodiment, the transmission ratio of the first bevel gear 241 to the second bevel gear 242 can be set to 2:1, the transmission ratio of the transmission worm gear 221 to the transmission worm 222 to 70:1, and the lead of the lead screw 111 to 5mm. Then, the distance that the transmission nut 211 moves on the lead screw 111 for each revolution of the output shaft of the transmission motor 231 is 5000μm / 2 / 70 / 360=0.01μm. Considering the loss of motion accuracy and assembly accuracy of the transmission system, the stable motion accuracy of the system should be within ±0.5μm. If higher precision is required, it can be achieved by increasing the transmission ratio or replacing it with a high-precision lead screw 111; at the same time, if it is necessary to increase the moving speed of the stage 200, it can also be achieved by setting a combination of multi-start threads and multi-start lead screws.

[0044] In one embodiment, the inner side of the transmission worm gear 221 is connected to the transmission nut 211 via a spline structure 251, the spline structure 251 extending along the axial direction of the transmission nut 211; and / or, the inner wall of the transmission nut 211 is provided with a plurality of dividing grooves 252 arranged along the axial direction of the transmission nut 211, so as to divide the spiral protrusion formed on the inner wall of the transmission nut 211 into a plurality of spiral segments.

[0045] See Figure 4 and Figure 5 In the embodiments of the present invention, by setting a spline structure 251 to connect the transmission worm gear 221 and the transmission nut 211, the movement of the transmission nut 211 within the transmission worm gear 221 can be guided, so that the transmission nut 211 can move axially relative to the transmission worm gear 221, but cannot rotate relative to it; at the same time, in this embodiment, a dividing groove 252 is set to divide the inner side of the transmission nut 211 into multiple helical segments, which can improve the elasticity and meshing reliability of the helical segments.

[0046] It should be noted that the above-mentioned related technical features, such as "the inner side of the transmission worm gear 221 is connected to the transmission nut 211 through a spline structure 251, the spline structure 251 extending along the axial direction of the transmission nut 211" and "the inner wall of the transmission nut 211 is provided with a plurality of dividing grooves 252 arranged along the axial direction of the transmission nut 211 to divide the spiral protrusion formed on the inner wall of the transmission nut 211 into a plurality of spiral segments", can be selected or provided simultaneously, and the present invention does not limit this.

[0047] See Figure 4 and Figure 5In one embodiment, the transmission worm gear 221 is connected to one side of the transmission nut 211 via a spring 253; an annular end cap 254 is provided on one side of the transmission worm gear 221, and the annular end cap 254 is installed on the transmission worm gear 221 via an adjusting screw 255. The annular end cap 254 extends toward the transmission worm gear 221 to form a protrusion, so as to abut against the transmission nut 211. The spring 253 is provided on the opposite side of the side of the transmission worm gear 221 that contacts the annular end cap 254; the adjusting screw 255 adjusts the pressure of the protrusion against the transmission nut 211 to adjust the thread engagement clearance between the transmission nut 211 and the lead screw 111.

[0048] In the embodiments of the present invention, by setting the spring 253 to be connected to one side of the transmission nut 211, the annular end cap 254 that abuts against the transmission nut 211 can be used to adjust the relative position of the transmission nut 211 and the transmission worm gear 221 by adjusting the depth of the adjusting screw 255, so as to adjust the gap of the thread engagement between the transmission nut 211 and the lead screw 111, so that the thread of the transmission nut 211 and the lead screw 111 always remains in contact, avoiding the transmission motor 231 from spinning idly when it needs to drive the platform 200 to move, thus affecting the movement accuracy, and thus maintaining high transmission accuracy even in low-speed movement.

[0049] In one embodiment, multiple adjusting screws 255 are provided.

[0050] In embodiments of the present invention, by providing multiple adjusting screws 255, the meshing clearance between the transmission nut 211 and the lead screw 111 can be adjusted more securely and reliably. Specifically, in this embodiment, the number of adjusting screws 255 can be set to three.

[0051] See Figure 6 In one embodiment, the stage 200, lead screw 111, transmission nut 211 and drive assembly are configured as structural groups in a one-to-one correspondence, and multiple structural groups are provided; and / or, the base 100 includes a housing 121, and the lead screw 111, transmission nut 211 and drive assembly are all installed inside the housing 121.

[0052] In embodiments of the present invention, multiple structural groups are provided, enabling high-precision movement of different stages 200, achieving independent movement and closed-loop control of multiple stages 200. Sensors can be installed to locate the absolute position of each stage 200 and the relative position between them in real time, bringing high precision and automation convenience to the position adjustment of optical components. Simultaneously, in this embodiment, the base 100 has a housing 121 to protect the internal structures and components, ensuring continuous high precision and reliability during operation.

[0053] It should be noted that the above-mentioned related technical features, such as "the stage 200, the lead screw 111, the transmission nut 211 and the drive assembly are configured as structural groups in a one-to-one correspondence, and multiple structural groups are configured", and "the base 100 includes a housing 121, and the lead screw 111, the transmission nut 211 and the drive assembly are all installed inside the housing 121", can be configured one of them or simultaneously. This invention does not limit this.

[0054] In embodiments of the present invention, the displacement platform of the optical system can be applied to the assembly and adjustment of multi-lens imaging optical systems. Lenses or lens assemblies can be mounted on multiple stages 200 and work in conjunction with an MTF (Medium-to-Friction) analyzer. The displacement of the lenses or lens groups is controlled by host computer software, and the air gaps between the lenses are continuously fine-tuned based on the MTF analyzer's detection results, achieving automated lens assembly and positioning. Simultaneously, the optimal assembly position of the lens can be determined by the position of the stage 200 fed back by sensors. The host computer software can generate a digital model of the lens's central plane position information. This model, through data sharing with optical CAD software, can further enable the design of the lens barrel's mechanical structure and the analysis of dimensional tolerances, thereby significantly accelerating the lens assembly and adjustment process and bringing higher efficiency to the debugging of the imaging optical system.

[0055] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A displacement platform for an optical system, characterized in that, include: The base is movably connected to a platform; A lead screw is fixedly installed on the base, and a transmission nut is installed on the platform along the length of the lead screw, the transmission nut engaging with the lead screw; as well as, A drive assembly is mounted on the stage and is used to drive the transmission nut to rotate, thereby controlling the stage to move along the length of the lead screw.

2. The displacement platform of the optical system as described in claim 1, characterized in that, The displacement platform of the optical system also includes: A guide rail, mounted on the base, is linearly arranged along the length of the lead screw; and, A slider is slidably connected to the guide rail, and the stage is mounted on the slider.

3. The displacement platform of the optical system as described in claim 1, characterized in that, A bearing is provided between the transmission nut and the platform. The transmission nut is fixedly connected to one of the outer ring and the inner ring of the bearing, and the platform is fixedly connected to the other of the outer ring and the inner ring of the bearing.

4. The displacement platform of the optical system as described in claim 3, characterized in that, A spacer ring is provided between the transmission nut and the bearing, and the transmission nut is fixedly connected to the outer ring or inner ring of the bearing through the spacer ring.

5. The displacement platform of the optical system as described in claim 1, characterized in that, The displacement platform of the optical system also includes: A transmission worm gear is sleeved on the transmission nut and is drivingly connected to the transmission nut; and... A transmission worm gear, which meshes with the transmission worm wheel; The drive assembly includes a transmission motor, which drives the transmission worm wheel to rotate via the transmission worm gear, thereby driving the transmission nut to rotate.

6. The displacement platform of the optical system as described in claim 5, characterized in that, The displacement platform of the optical system also includes: A first bevel gear is mounted on the output shaft of the drive motor; and... A second bevel gear is mounted on the transmission worm gear, and the second bevel gear meshes with the first bevel gear. The drive motor drives the second bevel gear to rotate via the first bevel gear, which in turn drives the drive worm gear to rotate.

7. The displacement platform of the optical system as described in claim 5, characterized in that, The inner side of the transmission worm gear is connected to the transmission nut via a spline structure, the spline structure extending axially along the transmission nut; and / or, The inner wall of the transmission nut is provided with a plurality of dividing grooves arranged along the axial direction of the transmission nut, so as to divide the spiral protrusion formed on the inner wall of the transmission nut into a plurality of spiral segments.

8. The displacement platform of the optical system as described in claim 7, characterized in that, The transmission worm gear is connected to one side of the transmission nut via a spring; An annular end cap is provided on one side of the transmission worm gear. The annular end cap is installed on the transmission worm gear by adjusting screws. The end cap extends toward the transmission worm gear to form a protrusion to abut against the transmission nut. The spring is provided on the opposite side of the transmission worm gear that contacts the annular end cap. The adjusting screw adjusts the pressure of the protrusion against the transmission nut to adjust the thread engagement clearance between the transmission nut and the lead screw.

9. The displacement platform of the optical system as described in claim 8, characterized in that, The adjusting screws are provided in multiple quantities.

10. The displacement platform of the optical system as described in claim 1, characterized in that, The platform, the lead screw, the transmission nut, and the drive assembly are each configured as a structural group, and multiple structural groups are provided; and / or, The base includes a housing, and the lead screw, the transmission nut, and the drive assembly are all installed inside the housing.

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