Slit adjustment structure and optical spectrometer

Abstract

The application provides a slit adjusting structure and a spectrometer. The slit adjusting structure comprises a bearing base plate, two moving parts, two fixed parts and a sliding support structure. The two moving parts are arranged on the bearing base plate in sequence along the length direction of the bearing base plate, and the two moving parts can move towards each other or move away from each other, and the two fixed parts are connected with the two moving parts respectively, and the sides close to each other of the two fixed parts are provided with mounting positions for mounting slit plates, so that the two moving parts can drive the two fixed parts to move by moving, and then the two slit plates arranged on the mounting positions can move towards each other or move away from each other, so as to realize the accurate adjustment of the width of the slit. The two fixed parts are slidingly connected with the sliding support structure, so as to slidingly cooperate with the sliding support structure during the movement of the fixed parts, thereby playing a role of guiding and limiting the movement of the fixed parts.

Description

Technical Field

[0001] This application relates to the field of spectral measurement technology, and in particular to a slit adjustment structure and a spectrometer. Background Technology

[0002] In the operation of a spectrometer, a slit is typically required to capture monochromatic light within a specific wavelength range. This slit ensures that only light rays parallel to the slit's direction can pass through smoothly, while light rays from other directions are blocked by the slit's edge. In practical applications, the width of the slit has a crucial impact on the spectrometer's performance.

[0003] Therefore, how to achieve precise adjustment of the slit width is a problem that urgently needs to be solved. Utility Model Content

[0004] The purpose of this application is to provide a slit adjustment structure and a spectrometer, which aims to solve the problem of how to accurately adjust the width of the slit.

[0005] In a first aspect, the present invention provides a slit adjustment structure, including a bearing base plate, two moving parts, two fixing parts, and a sliding support structure.

[0006] Two movable components are sequentially disposed on the bearing base plate along the length direction of the bearing base plate, and the two movable components can move toward each other or toward each other;

[0007] Two fixed members are respectively connected to the two movable members, and each of the two fixed members has a mounting position for installing a slit plate on its side closest to each other; the sliding support structure is provided on the bearing base plate and is slidably connected to the two fixed members to guide and limit the movement of the fixed members.

[0008] In some embodiments, the slit adjustment structure further includes a drive assembly and a first transmission assembly and a second transmission assembly that are driven by the drive assembly;

[0009] The two moving parts are respectively connected to the first transmission assembly and the second transmission assembly, and the driving assembly is used to drive a portion of the first transmission assembly and a portion of the second transmission assembly to move, thereby driving the two moving parts to move.

[0010] In some embodiments, the drive assembly includes a drive member and a drive shaft that drives the drive member; the first drive assembly includes a first helical groove on the drive shaft and a first threaded member that engages with the first helical groove, the first threaded member being connected to one of the two moving members; the second drive assembly includes a second helical groove on the drive shaft and a second threaded member that engages with the second helical groove, the second threaded member being connected to the other of the two moving members.

[0011] The first spiral groove and the second spiral groove rotate in opposite directions.

[0012] In some embodiments, the drive shaft is connected to the output shaft of the drive member via a coupling;

[0013] And / or, the axial direction of the drive shaft is parallel to the length direction of the bearing base plate.

[0014] In some embodiments, the supporting base plate is provided with two bearing plates, which are spaced apart along the length of the supporting base plate. Each bearing plate contains a bearing, and the output shaft of the drive member and the end of the transmission shaft away from the output shaft are respectively located in the two bearings.

[0015] In some embodiments, the sliding support structure includes a support rod disposed on the bearing base plate, and the fixing member is provided with a sliding hole, wherein the support rod is slidably disposed in the sliding hole.

[0016] In some embodiments, two bearing plates are provided on the bearing base plate, and the two bearing plates are spaced apart along the length direction of the bearing base plate. The two ends of the support rod are respectively connected to the two bearing plates.

[0017] In some embodiments, the slit adjustment mechanism further includes at least one displacement sensor, which is disposed on the sliding support structure and is used to detect and display the movement displacement of at least one of the fixing members.

[0018] In some embodiments, the displacement sensor is located on the side of one of the fixtures away from the other fixture;

[0019] And / or, the bearing base plate is provided with two bearing plates, the two bearing plates are spaced apart along the length direction of the bearing base plate, the bearing plates are provided with mounting holes, the mounting holes are provided with support cylinders, a portion of the sliding support structure passes through the support cylinders, and the displacement sensor is located between the support cylinders and the portion of the sliding support structure.

[0020] In some embodiments, the slit adjustment structure further includes a protective cover, which covers the support base plate and forms a receiving cavity with the support base plate, wherein at least a portion of the moving member, the fixing member and the sliding support structure are located within the receiving cavity;

[0021] The protective cover is a transparent protective cover; and / or, the protective cover is provided with an irradiation port.

[0022] Secondly, this utility model embodiment also provides a spectrometer, including a slit plate and a slit adjustment structure.

[0023] The beneficial effects of this utility model are:

[0024] This utility model provides a slit adjustment structure and a spectrometer. The slit adjustment structure includes a supporting base plate, two moving parts, two fixed parts, and a sliding support structure. The two moving parts are sequentially arranged on the supporting base plate along its length and can move towards or away from each other. The two fixed parts are connected to the two moving parts respectively, and each fixed part has a mounting position for a slit plate on its adjacent side. By moving the two moving parts towards or away from each other, the two fixed parts can be moved, thereby causing the two slit plates mounted at the mounting positions to move towards or away from each other, achieving precise adjustment of the slit width. The overall structure of the slit adjustment structure is relatively simple. Simultaneously, the supporting base plate also has a sliding support structure slidably connected to the two fixed parts. This sliding support structure engages with the fixed parts during movement, guiding and limiting the movement of the fixed parts, ensuring smoother movement without deviation or deflection, and guaranteeing the reliability of the slit width adjustment operation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the slit adjustment structure shown in the embodiment of this application;

[0027] Figure 2 for Figure 1 The diagram shown illustrates the structure of the slit adjustment mechanism for removing the protective cover.

[0028] Figure 3 for Figure 2 A schematic diagram of the structure after removing the moving parts.

[0029] Figure label:

[0030] 100. Support plate; 110. Protective cover; 120. Irradiation port; 200. Moving part; 300. Fixing part; 310. Mounting position; 320. Sliding hole; 400. Sliding support structure; 410. Support rod; 500. Drive assembly; 510. Drive component; 520. Drive shaft; 530. Coupling; 600. First transmission assembly; 610. First helical groove; 620. First threaded part; 700. Second transmission assembly; 710. Second helical groove; 720. Second threaded part; 800. Bearing plate; 810. Mounting hole; 820. Support cylinder; 900. Displacement sensor. Detailed Implementation

[0031] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0032] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0033] Reference Figures 1 to 3 As shown, this embodiment provides a slit adjustment structure, including a bearing base plate 100, two movable parts 200, two fixed parts 300, and a sliding support structure 400.

[0034] Two movable members 200 are sequentially disposed on the bearing base plate 100 along the length direction of the bearing base plate 100, and the two movable members 200 can move toward each other or toward each other.

[0035] Two fixed members 300 are respectively connected to two movable members 200, and each of the two fixed members 300 has a mounting position 310 for mounting a slit plate on its side closest to each other. A sliding support structure 400 is provided on the supporting base plate 100 and is slidably connected to the two fixed members 300 to guide and limit the movement of the fixed members 300.

[0036] In practical implementation, the length direction of the supporting base plate 100 can be referenced. Figure 1 As shown in the x-direction, two movable members 200 are arranged sequentially along the x-direction and can move towards or away from each other along the x-direction to change the distance between them in the x-direction. Since two fixed members 300 are respectively connected to the two movable members 200, the movement of the two movable members 200 drives the corresponding fixed members 300 to move, thereby changing the distance between the two mounting positions 310 in the x-direction. This can then be used to adjust the width distance between the two slits mounted on the two mounting positions 310, so as to achieve precise adjustment of the slit width, and the whole structure is relatively simple.

[0037] Specifically, when it is necessary to increase the width of the slit, the two moving members 200 can be moved away from each other, thereby causing the two fixed members 300 to move away from each other as well, thus increasing the width distance between the slits provided on the two mounting positions 310. Similarly, when it is necessary to decrease the width of the slit, the two moving members 200 can be moved closer to each other, thereby causing the two fixed members 300 to move closer to each other as well, thus decreasing the width distance between the slits provided on the two mounting positions 310.

[0038] Furthermore, since the two fixing members 300 will move toward each other or away from each other under the action of the moving member 200, in order to make the fixing members 300 slide smoothly along the length of the bearing base plate 100 without deflection, a sliding support structure 400 can be provided on the bearing base plate 100. The sliding support structure 400 slides with the fixing members 300 to limit and guide the movement of the fixing members 300, so that the fixing members 300 can slide smoothly along the length of the bearing base plate 100, so as to drive the slit pieces on the two mounting positions 310 to adjust their positions and achieve precise adjustment of the slit width.

[0039] The slit adjustment structure of this embodiment includes a supporting base plate 100, two movable members 200, two fixed members 300, and a sliding support structure 400. The two movable members 200 are sequentially disposed on the supporting base plate 100 along its length. The two movable members 200 can move towards each other or away from each other. The two fixed members 300 are respectively connected to the two movable members 200, and each of the two fixed members 300 has a mounting position 310 for mounting a slit piece on its adjacent side. Therefore, by moving the two movable members 200 towards each other or away from each other, the two fixed members 300 can be moved, thereby causing the two slit pieces located at the mounting positions 310 to move towards each other or away from each other, thus achieving precise adjustment of the slit width. The overall slit adjustment structure is also relatively simple. Meanwhile, the base plate 100 is also provided with a sliding support structure 400 that is slidably connected to the two fixing members 300. This structure slides and engages with the sliding support structure 400 during the movement of the fixing members 300, thereby guiding and limiting the movement of the fixing members 300. This makes the movement of the fixing members 300 more stable and prevents them from shifting or deflecting, thus ensuring the reliability of the slit width adjustment operation.

[0040] Reference Figure 2 and Figure 3 As shown, in some embodiments, the slit adjustment structure further includes a drive assembly 500 and a first transmission assembly 600 and a second transmission assembly 700 that are driven in conjunction with the drive assembly 500.

[0041] Two movable parts 200 are respectively connected to the first transmission assembly 600 and the second transmission assembly 700. The drive assembly 500 is used to drive a part of the first transmission assembly 600 and a part of the second transmission assembly 700 to move, so as to drive the two movable parts 200 to move.

[0042] In other words, when it is necessary to move the two moving parts 200, the drive assembly 500 can drive a portion of the first transmission assembly 600 and a portion of the second transmission assembly 700 to move. Then, the movement of the first transmission assembly 600 and the second transmission assembly 700 respectively drives the two moving parts 200 to move, thereby realizing automated movement operation and saving manpower.

[0043] Reference Figure 2 and Figure 3As shown, in some embodiments, the drive assembly 500 includes a drive member 510 and a drive shaft 520 that drives the drive member 510. The first transmission assembly 600 includes a first helical groove 610 disposed on the drive shaft 520 and a first threaded member 620 that engages with the first helical groove 610. The first threaded member 620 is connected to one of the two moving members 200. The second transmission assembly 700 includes a second helical groove 710 disposed on the drive shaft 520 and a second threaded member 720 that engages with the second helical groove 710. The second threaded member 720 is connected to the other of the two moving members 200. The first helical groove 610 and the second helical groove 710 have opposite directions of rotation.

[0044] In specific implementation, the first threaded component 620 engages with the first helical groove 610. Thus, when the driving component 510 drives the transmission shaft 520 to rotate, the engagement of the first helical groove 610 and the first threaded component 620 causes the first threaded component 620 to move, and subsequently, the movement of the first threaded component 620 causes one of the moving components 200 to move. Similarly, the second threaded component 720 engages with the second helical groove 710. Thus, when the driving component 510 drives the transmission shaft 520 to rotate, the engagement of the second helical groove 710 and the second threaded component 720 causes the second threaded component 720 to move, and subsequently, the movement of the second threaded component 720 causes the other moving component 200 to move. The drive shaft 520 is rotated by the drive member 510, which in turn drives the two moving members 200 to move toward or away from each other through the engagement of the first helical groove 610 and the first threaded member 620, and the engagement of the second helical groove 710 and the second threaded member 720, respectively. This ultimately moves the slit plates on the two mounting positions 310 to change the slit width. Since the first helical groove 610 and the second helical groove 710 are in opposite directions, when the drive member 510 drives the drive shaft 520 to rotate, the two moving members 200 move in opposite directions, allowing them to move toward or away from each other.

[0045] For example, when the drive member 510 drives the transmission shaft 520 to rotate clockwise, the two moving members 200 can move in a direction away from each other, thereby causing the two fixed members 300 to move in a direction away from each other, ultimately increasing the slit width.

[0046] For example, the drive shaft 520 and the first helical groove 610 and the second helical groove 710 provided on the drive shaft 520 can be understood as the drive shaft 520 having positive and negative threads. That is, the drive shaft 520, the first helical groove 610 and the second helical groove 710 together constitute a positive and negative threaded rod, which is used to mesh with the first threaded part 620 and the second threaded part 720 to switch the rotational motion to linear movement.

[0047] For example, the drive unit 510 can be a stepper motor or a cylinder.

[0048] For example, the first threaded part 620 and the second threaded part 720 can be a nut or a sleeve with internal threads, etc.

[0049] Reference Figure 2 and Figure 3 As shown, in some embodiments, the drive shaft 520 and the output shaft of the drive member 510 are connected by a coupling to achieve a reliable transmission connection between the two shafts.

[0050] Reference Figure 2 and Figure 3 As shown, in some embodiments, the axial direction of the drive shaft 520 is parallel to the length direction of the bearing base plate 100. This arrangement ensures that the rotation of the drive shaft 520 drives the first threaded component 620 and the second threaded component 720 to move. When the first threaded component 620 and the second threaded component 720 drive the two moving components 200 to move, the moving direction of the two moving components 200 is consistent with the arrangement direction of the two moving components 200. This can achieve smooth movement of the two moving components 200 without jamming.

[0051] Reference Figure 2 and Figure 3 As shown, in some embodiments, the supporting base plate 100 is provided with two bearing plates 800, which are arranged along the length direction of the supporting base plate 100 (refer to...). Figure 2 The bearings are arranged at intervals in the x direction shown. Each bearing plate 800 is equipped with a bearing. The output shaft of the drive component 510 and the end of the transmission shaft 520 away from the output shaft are respectively located in two bearings.

[0052] In practice, in order to reliably support the output shafts of the drive shaft 520 and the drive component 510, two bearing plates 800 can be set on the bearing base plate 100, and bearings can be set in the bearing plates 800 to support the output shafts of the drive shaft 520 and the drive component 510 respectively, and can also reduce friction.

[0053] For example, the bearing plate 800 can be integrally formed with the bearing base plate 100 to save manufacturing steps while improving the structural strength of the entire bearing base plate 100, or the bearing plate 800 and the bearing base plate 100 can be formed separately and then snapped or screwed together.

[0054] Specifically, the bearing plate 800 has mounting holes at the positions corresponding to the bearings, and the bearings are placed in the mounting holes and can fit tightly with the mounting holes.

[0055] Reference Figure 2 and Figure 3 As shown, in some embodiments, the sliding support structure 400 includes a support rod 410 disposed on the bearing base plate 100, and a sliding hole 320 is provided on the fixing member 300, and the support rod 410 is slidably disposed in the sliding hole 320.

[0056] In practice, the support rod 410 is slidably inserted into the sliding hole 320 of the fixing member 300 so that when the fixing member 300 moves along the length direction of the bearing base plate 100, it plays a guiding role in movement through the sliding cooperation with the support rod 410, preventing the fixing member 300 from flipping or shifting.

[0057] For example, a lubrication structure, such as grease or oil, can be provided between the wall of the sliding hole 320 and the outer wall of the support rod 410 to improve the smoothness of the movement of the fixing member 300.

[0058] Reference Figure 2 and Figure 3 As shown, in some embodiments, two bearing plates 800 are provided on the supporting base plate 100. The two bearing plates 800 are spaced apart along the length direction of the supporting base plate 100, and the two ends of the support rod 410 are respectively connected to the two bearing plates 800.

[0059] In other words, by setting the bearing plate 800 of the bearing to support the end of the support rod 410, the utilization rate of the structure can be improved, while the structure can be simplified and the cost reduced.

[0060] Reference Figure 2 and Figure 3 As shown, in some embodiments, the slit adjustment mechanism further includes at least one displacement sensor 900, which is disposed on the sliding support structure 400 and is used to detect and display the movement displacement of at least one fixing member 300.

[0061] In this way, the displacement sensor 900 can detect the movement of the fixing member 300 in real time, so as to reflect the change in the slit width based on the movement of the fixing member 300. This facilitates the adjustment by the staff and can effectively adjust the impact of the mechanical errors of the entire slit adjustment structure on the slit width adjustment accuracy. In addition, the displacement sensor 900 can be equipped with a display screen to show the detected movement information, so that the user can intuitively obtain the results and make adjustments according to the structure. Furthermore, the displacement sensor 900 is only used during the adjustment phase of the slit adjustment structure. After adjustment, the displacement sensor 900 can be removed to reduce costs.

[0062] Reference Figure 2 and Figure 3 As shown, in some embodiments, the displacement sensor 900 is located on the side of any one of the fixing members 300 away from the other fixing member 300, so as to avoid affecting the movement of the fixing member 300 or causing positional interference to the movement of the fixing member 300.

[0063] For example, the displacement sensor 900 can be configured as follows: Figure 2 As shown, the two displacement sensors 900 are located on the side of the corresponding fixing member 300 away from the other fixing member 300, that is, the two fixing members 300 are located between the two displacement sensors 900.

[0064] Reference Figure 2 and Figure 3 As shown, in some embodiments, two bearing plates 800 are provided on the supporting base plate 100. The two bearing plates 800 are spaced apart along the length direction of the supporting base plate 100. The bearing plates 800 are provided with mounting holes 810. A support cylinder 820 is provided at the mounting hole 810. The sliding support structure 400 passes through the support cylinder 820. The displacement sensor 900 is located between the support cylinder 820 and the sliding support structure 400. This arrangement can effectively utilize the position between the bearing plates 800 and the sliding support structure 400 to arrange the displacement sensor 900.

[0065] Reference Figures 1 to 3 As shown, in some embodiments, the slit adjustment structure further includes a protective cover 110, which covers the support base plate 100 and forms a receiving cavity with the support base plate 100. At least a portion of the moving member 200, the fixed member 300 and the sliding support structure 400 are located in the receiving cavity to provide protection such as dust prevention.

[0066] For example, the protective cover 110 and the supporting base plate 100 can be connected by screws or by snap-fit. For example, the shape of the protective cover 110 can be adapted to the shape of the bearing plate 800 to accommodate the bearing plate 800.

[0067] In practice, the protective cover 110 is a transparent protective cover, which allows users to view the movement displacement information displayed by the displacement sensor 900 in real time or to view the adjustment process of the slit width.

[0068] In addition, the protective cover 110 is provided with an illumination port 120 to allow light to enter the slit.

[0069] In summary, in this embodiment, the drive component 510 drives the forward and reverse threaded rods to move, which in turn drives the two moving components 200 to open and close in the left and right directions, achieving synchronous bidirectional motion. At the same time, through data feedback from the displacement sensor 900 or the encoder, the adjustment of the slit width control precision is converted into precise control of the stepper motor step angle change, thereby achieving continuous electric adjustment of the slit width with micron-level precision to meet different scenario requirements.

[0070] Reference Figures 1 to 3 As shown, this embodiment also provides a spectrometer, including a slit and a slit adjustment structure.

[0071] The specific structure and implementation principle of the slit adjustment structure in this embodiment are the same as those of the slit adjustment structure provided in the above embodiments, and can bring the same or similar technical effects. They will not be described in detail here, but can be referred to the description of the above embodiments.

[0072] In the description of the embodiments of this application, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0073] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A slit adjustment structure, characterized in that, include: Support base plate (100); Two movable parts (200) are sequentially disposed on the supporting base plate (100) along the length direction of the supporting base plate (100), and the two movable parts (200) can move toward each other or toward each other; Two fixing members (300) are respectively connected to two of the movable members (200), and each of the two fixing members (300) has a mounting position (310) for mounting a slit plate on its adjacent side; and A sliding support structure (400) is provided on the bearing base plate (100) and slidably connected to the two fixing members (300) to guide and limit the movement of the fixing members (300).

2. The slit adjustment structure according to claim 1, characterized in that, The slit adjustment structure further includes a drive assembly (500) and a first transmission assembly (600) and a second transmission assembly (700) that are in transmission cooperation with the drive assembly (500); The two moving parts (200) are respectively connected to the first transmission assembly (600) and the second transmission assembly (700), and the driving assembly (500) is used to drive a part of the first transmission assembly (600) and a part of the second transmission assembly (700) to move, so as to drive the two moving parts (200) to move.

3. The slit adjustment structure according to claim 2, characterized in that, The drive assembly (500) includes a drive member (510) and a drive shaft (520) that is in transmission cooperation with the drive member (510); The first transmission assembly (600) includes a first helical groove (610) disposed on the transmission shaft (520) and a first threaded member (620) engaging with the first helical groove (610), the first threaded member (620) being connected to one of the two moving members (200); the second transmission assembly (700) includes a second helical groove (710) disposed on the transmission shaft (520) and a second threaded member (720) engaging with the second helical groove (710), the second threaded member (720) being connected to the other of the two moving members (200); The first spiral groove (610) and the second spiral groove (710) have opposite directions of rotation.

4. The slit adjustment structure according to claim 3, characterized in that, The supporting base plate (100) is provided with two bearing plates (800), and the two bearing plates (800) are spaced apart along the length direction of the supporting base plate (100). Each bearing plate (800) is provided with a bearing. The output shaft of the driving member (510) and the end of the transmission shaft (520) away from the output shaft are respectively located in the two bearings.

5. The slit adjustment structure according to any one of claims 1 to 4, characterized in that, The sliding support structure (400) includes a support rod (410) disposed on the bearing base plate (100), and a sliding hole (320) is provided on the fixing member (300), and the support rod (410) is slidably disposed in the sliding hole (320).

6. The slit adjustment structure according to claim 5, characterized in that, Two bearing plates (800) are provided on the bearing base plate (100), and the two bearing plates (800) are spaced apart along the length direction of the bearing base plate (100). The two ends of the support rod (410) are respectively connected to the two bearing plates (800).

7. The slit adjustment structure according to any one of claims 1 to 4, characterized in that, The slit adjustment mechanism further includes at least one displacement sensor (900), which is disposed on the sliding support structure (400) and is used to detect and display the movement displacement of at least one of the fixing members (300).

8. The slit adjustment structure according to claim 7, characterized in that, The displacement sensor (900) is located on the side of one of the fixtures (300) away from the other fixture (300); And / or, two bearing plates (800) are provided on the bearing base plate (100), the two bearing plates (800) are spaced apart along the length direction of the bearing base plate (100), the bearing plates (800) are provided with mounting holes (810), a support cylinder (820) is provided at the mounting hole (810), the sliding support structure (400) passes through the support cylinder (820), and the displacement sensor (900) is provided between the support cylinder (820) and the sliding support structure (400).

9. The slit adjustment structure according to any one of claims 1 to 4, characterized in that, The slit adjustment structure also includes a protective cover (110), which covers the supporting base plate (100) and encloses the supporting base plate (100) to form a receiving cavity. At least a portion of the moving part (200), the fixing part (300), and the sliding support structure (400) are located within the receiving cavity. The protective cover (110) is a transparent protective cover; and / or, the protective cover (110) is provided with an irradiation port (120).

10. A spectrometer, characterized in that, It includes a slit plate and a slit adjustment structure as described in any one of claims 1 to 9.

Images