An optical experimental turntable

Abstract

This invention relates to the field of optical experimental equipment technology, and particularly to an optical experimental turntable, comprising a base, a rotary worktable mounted on the base, and a drive module disposed on one side of the rotary worktable; the optical experimental turntable also includes an aperture adjustment unit, which is disposed at the upper end of the rotary worktable and used to change the aperture of the light-gathering hole on the rotary worktable. The buffer unit used in this invention can perform two-stage vibration reduction; the vibration damping medium within the buffer frame can release the vibration kinetic energy transmitted by the base through its own vibration, significantly reducing the vibration transmission path. Combined with the elastic buffering effect of the buffer spring, it effectively isolates the interference of external environmental vibration and the vibration of the equipment itself on the optical path.

Description

Technical Field

[0001] This invention relates to the field of optical experimental equipment technology, and in particular to an optical experimental turntable. Background Technology

[0002] Optical experimental turntables are indispensable core equipment in fields such as optical measurement, laser spectroscopy analysis, material optical property testing, and photoelectric detection. Their main function is to carry experimental samples and achieve high-precision angle rotation and positioning to meet the optical path testing requirements under different incident angles.

[0003] Currently, existing optical experimental turntables mainly consist of six modules: mechanical structure, rotary support, drive transmission, angle measurement, electrical control system, and optical adapter auxiliary system. While these can meet basic optical experimental needs, the optical components and experimental samples in these turntables are rigidly mounted directly on the rotary support module. Vibrations from the external environment (such as micro-vibrations of the laboratory floor and vibrations from personnel movement) and vibrations generated by the equipment itself (such as motor pulsations and reducer transmission impacts) are directly transmitted to the optical path system without attenuation through the base. This leads to problems such as beam jitter, beam shift, and interference fringe drift, resulting in orders of magnitude errors in experimental data, or even rendering the experimental results completely invalid. Furthermore, existing... Most optical experimental turntables have fixed aperture designs, which cannot be flexibly adjusted according to experimental needs. When performing experiments such as narrow beam polarization and interference, an excessively large aperture will introduce a large amount of stray light, reducing experimental accuracy. When performing experiments such as wide beam diffraction and large sample transmission, an excessively small aperture will block the beam, causing the experiment to fail. The applicability of optical experimental turntables is low. In order to meet the needs of large sample and wide beam experiments, turntables usually need to have large aperture apertures. However, the design of large aperture will significantly weaken the structural rigidity of the rotation support module, forming a ring-shaped weak area. Under the gravity of the experimental sample and tooling fixtures, the stage surface will undergo deflection deformation, reducing the stability of the optical experimental turntable.

[0004] Therefore, there is an urgent need to provide an optical experimental turntable that can improve applicability, stability, and shock resistance. Summary of the Invention

[0005] Therefore, it is necessary to provide an optical experimental turntable to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an optical experimental turntable, comprising: a base, a rotary worktable mounted on the base, and a drive module provided on one side of the rotary worktable.

[0007] The optical experimental turntable also includes an aperture adjustment unit, which is located at the upper end of the rotary worktable and is used to change the aperture of the light inlet on the rotary worktable. The aperture adjustment unit includes a support part located above the rotary worktable, and multiple coaxially distributed adjustment parts are arranged inside the support part.

[0008] The support includes a support ring disposed above the rotary table.

[0009] The adjusting part includes an adjusting ring disposed inside the support ring.

[0010] The multiple adjusting rings are interlocked and coaxially distributed, with the outermost adjusting ring interlocked with the support ring.

[0011] The optical experimental turntable also includes a buffer unit, which is provided in multiple ways and is respectively installed on the support part. The buffer unit includes a supporting buffer part that slides through the support ring. A buffer spring is installed between the supporting buffer part and the support ring. The supporting buffer part is threadedly connected to the rotary worktable.

[0012] Multiple adjusting rings can be removed sequentially to adapt to various optical experimental conditions; the supporting buffer and buffer spring work together to cushion the support ring to prevent external vibrations from affecting the support ring; the supporting buffer, support ring and multiple adjusting rings together increase the overall rigidity of the rotary table.

[0013] Preferably, the support part further includes a snap-fit ​​opening one opened on the upper side of the inner ring surface of the support ring, and a plurality of circumferentially evenly distributed limiting grooves one are opened on the vertical side wall of the snap-fit ​​opening one, and a light-transmitting element one is connected to the snap-fit ​​opening one.

[0014] Preferably, the adjusting part further includes a snap-fit ​​opening two on the upper side of the inner ring surface of the adjusting ring, and a plurality of circumferentially evenly distributed limiting grooves two are provided on the vertical sidewall of the snap-fit ​​opening two. A light-transmitting element two is connected to the snap-fit ​​opening two, and the structure of the light-transmitting element two is the same as that of the light-transmitting element one. A limiting element is provided on the upper side of the outer ring surface of the adjusting ring.

[0015] Preferably, the supporting buffer includes a threaded post threadedly connected to the rotary worktable, a buffer frame installed at the upper end of the threaded post, a plurality of damping media disposed inside the buffer frame, a guide post installed at the upper end of the buffer frame, and a limit nut threadedly connected to the upper end of the guide post.

[0016] Preferably, the second light-transmitting component includes a light-transmitting sleeve with an inverted L-shaped cross-section that is slidably connected to both the second snap-fit ​​opening and the inner annular surface of the adjusting ring. A plurality of circumferentially evenly distributed reset springs are installed between the upper side of the light-transmitting sleeve and the horizontal section of the second snap-fit ​​opening.

[0017] Preferably, the limiting component includes a limiting ring installed on the upper side of the outer ring surface of the adjusting ring. The outer ring surface of the limiting ring has multiple circumferentially evenly distributed sliding grooves. Limiting beads are slidably connected in the sliding grooves, and limiting springs are installed between the limiting beads and the vertical sidewall of the sliding groove.

[0018] Preferably, the outer ring surface of the support ring is provided with a plurality of connecting protrusions, the connecting protrusions slidingly engaging with the corresponding guide rail posts, and a linear bearing is provided between the connecting protrusions and the guide rail posts.

[0019] Preferably, the support ring has multiple mounting holes, and the upper end of the support ring has multiple circumferentially evenly distributed guide openings at the snap-fit ​​opening.

[0020] Preferably, the adjusting ring has multiple mounting holes 2, and the upper end of the adjusting ring has multiple circumferentially evenly distributed guide openings 2 at the snap-fit ​​opening 2.

[0021] Preferably, a light-blocking film with an annular structure is installed at the lower end of the support ring.

[0022] In summary, the present invention has the following beneficial technical effects: 1. The buffer unit used in the present invention can be combined with two-stage shock absorption. The shock absorption medium in the buffer frame can release the vibration kinetic energy transmitted by the base through its own jumping, which greatly reduces the vibration transmission path. Combined with the elastic buffering effect of the buffer spring, it effectively isolates the interference of external environmental vibration and equipment operation vibration on the optical path.

[0023] 2. The aperture adjustment unit used in this invention is a multi-layer coaxial nested adjustment ring design. The adjustment rings can be disassembled sequentially from the inside to the outside according to the experimental beam diameter, sample size and experimental type, so as to freely adjust the size of the light transmission aperture. This allows it to be seamlessly adapted to a variety of mainstream optical experimental scenarios, thus improving the applicability of the optical experimental turntable.

[0024] 3. The hole adjustment unit, buffer unit and support ring used in this invention together form a rigid support system, which significantly improves the overall rigidity of the rotary table, strengthens the structure around the light inlet hole in all directions, effectively reduces the phenomenon of deformation of the turntable under stress, and ensures the long-term stability of the optical experimental turntable. Attached Figure Description

[0025] 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0027] Figure 2 A front view of the invention is shown;

[0028] Figure 3 A cross-sectional view of the present invention is shown;

[0029] Figure 4 It shows Figure 3 Enlarged view of region A in the middle;

[0030] Figure 5 A schematic cross-sectional view of the structure of the orifice adjustment unit and the buffer unit of the present invention is shown;

[0031] Figure 6 It shows Figure 5 Enlarged view of region B in the middle;

[0032] Figure 7 It shows Figure 5 Enlarged view of region C in the middle;

[0033] Figure 8 A schematic diagram of the bottom structure of the adjusting hole unit and the buffer unit of the present invention is shown.

[0034] The above-mentioned attached drawings include the following reference numerals: 1. Base; 2. Rotary worktable; 3. Drive module; 4. Adjustment unit; 40. Support part; 400. Support ring; 401. Snap-fit ​​opening one; 402. Limiting groove one; 403. Light-transmitting part one; 41. Adjustment part; 410. Adjusting ring; 411. Snap-fit ​​opening two; 412. Limiting groove two; 413. Light-transmitting sleeve; 414. Return spring; 415. Limiting ring; 416. Sliding groove; 417. Limiting bead; 418. Limiting spring; 42. Light-blocking film; 5. Buffer unit; 50. Supporting buffer part; 500. Threaded post; 501. Buffer frame; 502. Shock-absorbing medium; 503. Guide rail post; 504. Limiting nut; 51. Buffer spring. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways not described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] See Figure 1 , Figure 2 and Figure 3An optical experimental turntable includes a base 1, on which a rotary worktable 2 is mounted. The rotary worktable 2 mainly consists of a rotary spindle rigidly connected to the worktable surface and transmitting rotary motion, a precision bearing assembly, a bushing, a dustproof ring, etc. The rotary worktable 2 is an existing device. A light inlet hole is provided in the middle of the rotary worktable 2 to realize the light path. A drive module 3 is provided on one side of the rotary worktable 2. The drive module 3 consists of a stepper motor, a harmonic reducer, a coupling, a self-locking spindle when power is off or stopped, etc. The drive module 3 is an existing power source device.

[0037] See Figure 1 and Figure 2 The rotary table 2 is also equipped with components such as a scale, a circular grating, a zero-position switch, and a limit switch for angle measurement and feedback. The drive module 3 is also equipped with a control interface, which is connected to the existing control system via a connecting cable to facilitate the control system to control the drive module 3.

[0038] In actual operation, the base 1 is fixedly installed in the working position using existing bolts. The base 1 fixes the rotary table 2 and the drive module 3 in the working position, and then the drive module 3 is connected to the existing power supply.

[0039] See Figure 1 , Figure 2 and Figure 5 The optical experimental turntable also includes an adjustment unit 4 disposed on the upper end of the rotary worktable 2 and used to change the aperture of the light inlet on the rotary worktable 2. The adjustment unit 4 includes a support part 40 disposed above the rotary worktable 2, and the support part 40 includes a support ring 400 disposed above the rotary worktable 2.

[0040] See Figure 1 , Figure 2 , Figure 5 and Figure 8 The optical experimental turntable also includes multiple buffer units 5 respectively installed on the support part 40. Each buffer unit 5 includes a supporting buffer part 50 that slides on the support ring 400. A buffer spring 51 is installed between the supporting buffer part 50 and the support ring 400. The supporting buffer part 50 is threadedly connected to the rotary worktable 2.

[0041] See Figure 1 , Figure 4 , Figure 5 and Figure 8The supporting buffer part 50 includes a threaded post 500 threadedly connected to the rotary table 2. A buffer frame 501 is installed on the upper end of the threaded post 500. A guide rail post 503 is installed on the upper end of the buffer frame 501. A limit nut 504 is threadedly connected to the upper end of the guide rail post 503. The outer ring surface of the support ring 400 is provided with multiple connecting protrusions, and the connecting protrusions slide in cooperation with the corresponding guide rail post 503.

[0042] In actual operation, after the rotary worktable 2 is fixed, multiple threaded posts 500 are sequentially threaded onto the table surface of the rotary worktable 2. Then, multiple buffer springs 51 are sequentially sleeved on the corresponding guide rail posts 503. Next, multiple connecting protrusions on the annular surface of the support ring 400 are slidably sleeved on the corresponding guide rail posts 503. The multiple buffer springs 51 support the multiple connecting protrusions, thereby supporting the support ring 400. Then, multiple limiting nuts 504 are threaded onto the upper end of the guide rail posts 503, thereby limiting the vertical upward direction of the support ring 400 and preventing the support ring 400 from separating from the guide rail posts 503.

[0043] The linear bearing installed between the connecting protrusion and the guide post 503 can effectively reduce the friction between the connecting protrusion and the guide post 503, ensure that the support ring 400 is subjected to uniform force, balance the load of multiple buffer springs 51, ensure that the support ring 400 is always in a horizontal state, and avoid the support ring 400 from tilting.

[0044] The supporting buffer 50 and the buffer spring 51 work together to buffer the support ring 400 to prevent external vibrations from affecting the support ring 400. Specifically, multiple damping media 502 are provided inside the buffer frame 501, and a linear bearing is provided between the connecting protrusion and the guide post 503. The damping media 502 provided inside the buffer frame 501 can effectively release the vibration transmitted by the base 1 through its own jumping, greatly reducing the vibration transmitted to the guide post 503. In addition, in cooperation with the buffer spring 51, it effectively avoids the influence of external vibrations on the support ring 400, ensuring the normal conduct of optical experiments and the accuracy of experimental results.

[0045] See Figure 8 The lower end of the support ring 400 is equipped with a light-blocking film 42 with an annular structure.

[0046] In actual operation, a counterweight ring is installed at the lower end of the light-blocking film 42. After the support ring 400 is installed, the light-blocking film 42 at the lower end of the support ring 400 automatically hangs down through the counterweight ring and fits against the table surface of the rotary worktable 2, effectively preventing external light from affecting the optical experiment.

[0047] See Figure 1 , Figure 5 , Figure 6 and Figure 8The support part 40 also includes a snap-fit ​​opening 401 opened on the upper side of the inner ring surface of the support ring 400. Multiple circumferentially evenly distributed limiting grooves 402 are opened on the vertical side wall of the snap-fit ​​opening 401. A light-transmitting element 403 is connected to the snap-fit ​​opening 401.

[0048] See Figure 1 , Figure 5 , Figure 6 and Figure 7 The support part 40 has a plurality of coaxially distributed adjustment parts 41. The adjustment part 41 includes an adjustment ring 410 disposed inside the support ring 400. The adjustment part 41 also includes a snap-fit ​​opening 411 opened on the upper side of the inner ring surface of the adjustment ring 410. A plurality of circumferentially evenly distributed limiting grooves 412 are opened on the vertical side wall of the snap-fit ​​opening 411. A light-transmitting element 2 is connected to the snap-fit ​​opening 411. The structure of the light-transmitting element 2 is the same as that of the light-transmitting element 403. A limiting element is provided on the upper side of the outer ring surface of the adjustment ring 410. The limiting element includes a limiting ring 415 installed on the upper side of the outer ring surface of the adjustment ring 410.

[0049] See Figure 1 , Figure 5 , Figure 6 and Figure 7 The second light-transmitting component includes a light-transmitting sleeve 413 with an inverted L-shaped cross-section that is slidably connected to both the second snap-fit ​​opening 411 and the inner annular surface of the adjusting ring 410. Multiple circumferentially evenly distributed return springs 414 are installed between the upper side of the light-transmitting sleeve 413 and the horizontal section of the second snap-fit ​​opening 411.

[0050] See Figure 6 Multiple countersunk holes for housing the reset spring 414 are provided on the horizontal sections of both snap-fit ​​opening 1 401 and snap-fit ​​opening 2 411.

[0051] In specific operation, after the support ring 400 is installed, the outermost adjusting ring 410 is inserted and engaged with the support ring 400. Specifically, the outermost adjusting ring 410 presses down the light-transmitting sleeve 413 in the light-transmitting component 403 through the limiting ring 415 until the upper end of the light-transmitting sleeve 413 moves to the upper end of the horizontal section of the snap-fit ​​opening 401. At this time, the upper end of the outermost adjusting ring 410 is flush with the upper end of the support ring 400, and the return spring 414 in the light-transmitting component 403 is in a compressed state.

[0052] See Figure 1 , Figure 5 , Figure 6 and Figure 7 The outer ring surface of the limiting ring 415 has multiple circumferentially evenly distributed sliding grooves 416. Limiting beads 417 are slidably connected in the sliding grooves 416. Limiting springs 418 are installed between the limiting beads 417 and the vertical sidewall of the sliding grooves 416.

[0053] See Figure 1 , Figure 5 , Figure 6 and Figure 7 The upper end of the support ring 400 is provided with multiple circumferentially evenly distributed guide openings 1 at the snap-fit ​​opening 401, and the upper end of the adjusting ring 410 is provided with multiple circumferentially evenly distributed guide openings 2 at the snap-fit ​​opening 411.

[0054] In specific operation, when the outermost adjusting ring 410 is pressed down, the multiple guide openings at the upper end of the support ring 400 guide the limiting beads 417 on the adjusting ring 410. The adjusting ring 410 drives the multiple limiting beads 417 to move along the guides of the multiple guide openings. During the movement, the limiting beads 417 are squeezed into the sliding groove 416 by the vertical sidewall of the snap-fit ​​opening 401 and squeeze the limiting spring 418. When the upper end of the outermost adjusting ring 410 is pressed against the support ring... After the upper end of 400 is aligned, the limiting bead 417 moves into the corresponding limiting groove 402. The compressed limiting spring 418 resets and drives the limiting bead 417 to move into the limiting groove 402, thereby realizing the function of locking the adjusting ring 410 and the support ring 400. It should be noted that the elastic strength of the limiting spring 418 is greater than that of the reset spring 414 to prevent the outermost adjusting ring 410 from separating from the support ring 400 when no external force is applied.

[0055] After the outermost adjusting ring 410 is installed, the multiple adjusting rings 410 are interlocked and coaxially distributed. Specifically, the remaining adjusting rings 410 are installed sequentially from the outside to the inside. When two adjusting rings 410 are engaged, the inner adjusting ring 410 slides within the vertical sidewall of the engagement opening 411 of the outer adjusting ring 410 via the limiting ring 415 and presses down on the corresponding light-transmitting sleeve 413. The light-transmitting sleeve 413 compresses the corresponding multiple return springs 414. At the same time, the limiting ring 415 drives the multiple limiting beads 417 to move. The multiple guide openings 417 on the adjusting ring 410 correspond to the multiple limiting beads. The movement of 417 is guided, and the limiting spring 418 is in a compressed state. When the upper end of the light-transmitting sleeve 413 moves to the end of the horizontal section of the second locking opening 411, the multiple limiting beads 417 move into the corresponding limiting groove 412 to realize the locking function between two adjacent adjusting rings 410. This step is repeated until all the remaining adjusting rings 410 are locked. The upper end of the light-transmitting sleeve 413 on the innermost adjusting ring 410 is flush with the upper end of the adjusting ring 410. Multiple return springs 414 support the light-transmitting sleeve 413. The inner ring surface of the light-transmitting sleeve 413 is a whole to ensure that light passes through normally.

[0056] The adjusting ring 410 is engaged with the adjacent adjusting ring 410 by the limiting ring 415, which can effectively prevent light leakage at the connection between the two adjusting rings 410, avoid affecting the experiment, and ensure the accuracy of the experimental results.

[0057] The supporting buffer part 50, the support ring 400, and the multiple adjusting rings 410 together increase the overall rigidity of the rotary table 2. Specifically, the support ring 400 is rigidly connected to the rotary table 2 in the horizontal direction through the multiple supporting buffer parts 50, which strengthens the structural rigidity of the large-diameter light inlet hole of the rotary table 2, effectively improving the rigidity of the rotary table 2 and reducing stress deformation. Furthermore, the multiple adjusting rings 410 further enhance the structural rigidity reinforcement effect of the rotary table 2, improving the stability of the turntable in use.

[0058] See Figure 5 The support ring 400 has multiple mounting holes 1, and the adjusting ring 410 has multiple mounting holes 2.

[0059] In practice, multiple adjusting rings 410 can be removed sequentially to adapt to various optical experiment requirements. Specifically, based on the size of the experimental sample and the requirements of the experimental beam path, the adjusting ring 410 with the corresponding aperture is selected, and the adjusting rings 410 are removed sequentially from the inside out until the aperture on the inner side of the remaining adjusting rings 410 meets the requirements. At this time, the corresponding light-transmitting sleeve 413 is reset by multiple return springs 414. Then, the existing fixture is installed on the mounting hole two, and the experimental sample is installed on the fixture before conducting the optical experiment. If the size of the experimental sample requires the use of the support ring 400, all adjusting rings 410 are removed, and the fixture is installed on the mounting hole one. Then, the experimental sample is installed on the fixture before conducting the optical experiment. Multiple adjusting rings 410 can be quickly installed and removed to achieve the function of freely adjusting the size of the light-transmitting aperture. This can be adapted to various scenarios such as narrow beam polarization experiments, wide beam diffraction experiments, large-angle oblique incidence experiments, and sample transmission or reflection experiments, effectively improving the applicability of the turntable.

[0060] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0061] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An optical experimental turntable, comprising a base, a rotary stage mounted on the base, and a drive module disposed on one side of the rotary stage, characterized in that, Also includes: An adjustment unit is set on the upper part of the rotary worktable and is used to change the aperture of the light inlet hole on the rotary worktable. The adjustment unit includes a support part set on the upper part of the rotary worktable, and multiple coaxially distributed adjustment parts are provided on the inner side of the support part. The support includes a support ring disposed above the rotary table; The adjusting part includes an adjusting ring disposed inside the support ring; The multiple adjusting rings are interlocked and coaxially distributed, with the outermost adjusting ring interlocked with the support ring. A buffer unit is provided, and each buffer unit is respectively installed on the support part. The buffer unit includes a supporting buffer part that slides through the support ring. A buffer spring is installed between the supporting buffer part and the support ring. The supporting buffer part is threadedly connected to the rotary worktable. Multiple adjusting rings can be removed sequentially to adapt to various optical experimental conditions; the supporting buffer and the buffer spring work together to cushion the support ring; the supporting buffer, the support ring, and the multiple adjusting rings together increase the overall rigidity of the rotary table.

2. The optical experimental turntable according to claim 1, characterized in that: The support part also includes a snap-fit ​​opening 1 opened on the upper side of the inner ring surface of the support ring. Multiple circumferentially evenly distributed limiting grooves 1 are opened on the vertical side wall of the snap-fit ​​opening 1, and a light-transmitting element 1 is connected to the snap-fit ​​opening 1.

3. An optical experimental turntable according to claim 2, characterized in that: The adjustment part also includes a snap-fit ​​opening two on the upper side of the inner ring surface of the adjustment ring. Multiple circumferentially evenly distributed limiting grooves two are provided on the vertical side wall of the snap-fit ​​opening two. A light-transmitting element two is connected to the snap-fit ​​opening two. The structure of the light-transmitting element two is the same as that of the light-transmitting element one. A limiting element is provided on the upper side of the outer ring surface of the adjustment ring.

4. An optical experimental turntable according to claim 1, characterized in that: The supporting and buffering part includes a threaded column that is threadedly connected to the rotary worktable. A buffer frame is installed on the upper end of the threaded column. Multiple damping media are arranged inside the buffer frame. A guide rail column is installed on the upper end of the buffer frame. A limit nut is threadedly connected to the upper end of the guide rail column.

5. An optical experimental turntable according to claim 3, characterized in that: The second light-transmitting component includes a light-transmitting sleeve with an inverted L-shaped cross-section that is slidably connected to both the second snap-fit ​​opening and the inner annular surface of the adjusting ring. Multiple circumferentially evenly distributed reset springs are installed between the upper side of the light-transmitting sleeve and the horizontal section of the second snap-fit ​​opening.

6. An optical experimental turntable according to claim 3, characterized in that: The limiting component includes a limiting ring installed on the upper side of the outer ring surface of the adjusting ring. The outer ring surface of the limiting ring has multiple circumferentially evenly distributed sliding grooves. Limiting beads are slidably connected in the sliding grooves. A limiting spring is installed between the limiting beads and the vertical sidewall of the sliding groove.

7. An optical experimental turntable according to claim 4, characterized in that: The outer ring surface of the support ring is provided with multiple connecting protrusions, which slide in cooperation with the corresponding guide rail posts, and a linear bearing is provided between the connecting protrusions and the guide rail posts.

8. An optical experimental turntable according to claim 2, characterized in that: The support ring has multiple mounting holes, and the upper end of the support ring has multiple circumferentially evenly distributed guide openings at the snap-fit ​​opening.

9. An optical experimental turntable according to claim 3, characterized in that: The adjusting ring has multiple mounting holes, and the upper end of the adjusting ring has multiple circumferentially evenly distributed guide openings at the snap-fit ​​opening.

10. An optical experimental turntable according to claim 1, characterized in that: A light-blocking film with a ring structure is installed at the lower end of the support ring.

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