Adjustable slit used in light path

Abstract

The utility model belongs to the technical field of adjustable slits, and discloses an adjustable slit used in an optical path, which comprises a slit shell, a slit cover is arranged on one side of the slit shell, an adjusting rod is inserted in the outer side of the slit shell in a threaded manner, a handle is fixedly arranged at one end of the adjusting rod, a baffle is sleeved on the outer side of one end of the adjusting rod, and a light source is arranged on the baffle. Second-level positioning blocks are fixedly arranged on the inner walls of the two sides of the slit shell, first-level positioning blocks are fixedly arranged on the inner side of the slit shell, the inner sides of the first-level positioning blocks and the inner sides of the second-level positioning blocks are slidably attached to a baffle, a limiting groove is formed in the inner side of the baffle, a limiting plate is fixedly arranged at one end of the adjusting rod, and the outer side of the limiting plate is attached to the limiting groove. According to the utility model, through the baffle plate and the adjusting rod, the effective width of the light-passing slit can be changed by adjusting the position of the baffle plate so as to meet the adjusting requirements of different light paths on the width of the slit, and the structure adaptability is good, so that the light-passing slit can be well butted to a light path system.

Description

Technical Field

[0001] This invention belongs to the field of adjustable slit technology, specifically an adjustable slit used in optical paths. Background Technology

[0002] In optical experimental research, when researchers conduct experiments such as light diffraction and interference, different experimental conditions place precise and varied requirements on the width of the slit in the optical path. This adjustable slit in the optical path improves experimental efficiency and accuracy, facilitating the smooth conduct of optical experiments.

[0003] However, the following problems were found in the implementation of the relevant technologies:

[0004] In existing optical path technologies, the lack of devices that can flexibly adjust slit widths necessitates the preparation of multiple devices with different fixed slit widths to meet the needs of various optical path experiments or application scenarios. This not only increases equipment costs and storage space requirements but also easily leads to optical path system connection problems due to inaccurate docking during frequent device replacements, affecting the stability of the optical path and the accuracy of experiments. Furthermore, some existing devices have unreasonable structural designs, making it difficult to achieve good compatibility with optical path systems. Installation and docking require significant time and effort for debugging, and may even render the device unusable due to ineffective docking, severely hindering the efficiency of optical path-related research and applications. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides an adjustable slit for use in optical paths, offering advantages such as effective adjustment and good adaptability. This invention utilizes a baffle and an adjusting rod, allowing the position of the adjusting baffle to alter the effective width of the light-transmitting slit, thus meeting the adjustment requirements of different optical paths. Furthermore, its structure exhibits good adaptability and can be readily integrated into optical path systems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable slit for use in an optical path, comprising a slit shell, a slit cover on one side of the slit shell, an adjusting rod threadedly inserted into the outer side of the slit shell, a handle fixedly provided at one end of the adjusting rod, a baffle sleeved on the outer side of one end of the adjusting rod, secondary positioning blocks fixedly provided on both inner walls of the slit shell, a primary positioning block fixedly provided on the inner side of the slit shell, and the inner sides of the primary and secondary positioning blocks slidingly fitting against the baffle.

[0007] Preferably, a limiting groove is provided on the inner side of the baffle, and a limiting plate is fixedly provided at one end of the adjusting rod, with the outer side of the limiting plate fitting against the limiting groove.

[0008] Preferably, two secondary mounting bolts are inserted on one side of the secondary positioning block, and the secondary mounting bolts are fixedly engaged with the slit shell.

[0009] Preferably, two primary mounting bolts are inserted on one side of the primary positioning block, and the primary mounting bolts are fixedly engaged with the slit shell.

[0010] Preferably, a locking groove is provided on one side of the slit shell, and the inner side of the locking groove is engaged with the outer side of the slit cover.

[0011] Preferably, two assembly holes are provided on one side of the inner wall of the locking groove, and two assembly bolts are inserted into one side of the slit cover, with the assembly bolts fixedly engaged with the assembly holes.

[0012] Preferably, a light-transmitting slit is provided on one side of the slit cover, and the light-transmitting slit is located on one side of the baffle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a baffle and an adjusting rod to change the effective width of the light-transmitting slit by adjusting the position of the baffle, so as to meet the adjustment requirements of different light paths for the slit width.

[0015] 2. The structure of this utility model has good adaptability and can be well connected to optical path systems. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model after it has been opened;

[0018] Figure 3 This is a schematic diagram of the internal structure of the slit shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the slit cover structure of this utility model.

[0020] In the diagram: 1. Slit shell; 2. Primary positioning block; 3. Secondary positioning block; 4. Baffle; 5. Adjusting rod; 6. Handle; 7. Slit cover; 21. Primary mounting bolt; 31. Secondary mounting bolt; 41. Limiting groove; 51. Limiting plate; 71. Assembly hole; 72. Engaging groove; 73. Assembly bolt; 74. Light-transmitting slit. Detailed Implementation

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

[0022] like Figures 1 to 4 As shown, this utility model provides an adjustable slit for use in an optical path, including a slit shell 1, a slit cover 7 on one side of the slit shell 1, an adjusting rod 5 threadedly inserted into the outer side of the slit shell 1, a handle 6 fixedly attached to one end of the adjusting rod 5, a baffle 4 sleeved on the outer side of one end of the adjusting rod 5, secondary positioning blocks 3 fixedly attached to both inner walls of the slit shell 1, and primary positioning blocks 2 fixedly attached to the inner side of the slit shell 1. The inner sides of the primary positioning blocks 2 and the secondary positioning blocks 3 are slidably fitted with the baffle 4. When using this adjustable slit for use in an optical path, firstly, the slit shell 1 is installed in the appropriate position of the optical path system according to the design requirements to ensure accurate docking with other optical components. Next, the slit cover 7 is aligned with the engaging groove 72 on one side of the slit shell 1, and gently pressed to engage the two. Then, an assembly bolt 73 is passed through the slit cover 7 and screwed into the assembly hole 71 on the inner wall of one side of the engaging groove 72 to securely fix the slit cover 7. When the effective width of the light-transmitting slit 74 needs to be adjusted, the operator holds the handle 6 at one end of the adjusting rod 5 and rotates it. Since the adjusting rod 5 is threaded into the slit shell 1, the rotation will cause the adjusting rod 5 to move axially, thereby moving the baffle 4 sleeved on the outer side of one end of the adjusting rod 5. During the movement of the baffle 4, the inner sides of the primary positioning block 2 and the secondary positioning block 3 slide against the baffle 4, providing stable guidance for the baffle 4 and ensuring its linearity and smoothness of movement, until the light-transmitting slit 74 is adjusted to the required width to meet the needs of different optical path experiments or applications.

[0023] Specifically, the limiting groove 41 on the inner side of the baffle 4 cooperates with the limiting plate 51 fixed at one end of the adjusting rod 5. When the adjusting rod 5 moves the baffle 4, the limiting plate 51 slides within the limiting groove 41. This design effectively limits the movement range of the baffle 4, preventing it from falling off the adjusting rod 5 due to excessive movement during adjustment. This ensures the stability and reliability of the adjustable slit structure, extends the service life of the equipment, and avoids problems such as optical path interruption or damage caused by the baffle 4 falling off.

[0024] Furthermore, two secondary mounting bolts 31 inserted on one side of the secondary positioning block 3 are fixedly engaged with the slit shell 1. This fixing method allows the secondary positioning block 3 to be stably installed on both inner walls of the slit shell 1. During the movement of the baffle 4, the secondary positioning block 3 provides precise guidance and support for the baffle 4, ensuring that the baffle 4 can only move along the predetermined straight line without any deviation or wobbling. This helps to improve the accuracy of the width adjustment of the light-transmitting slit 74, so that the adjusted slit width can accurately meet the requirements of the optical path system, thereby improving the performance of the entire optical path system and the accuracy of experimental results.

[0025] It is worth noting that the two primary mounting bolts 21 inserted on one side of the primary positioning block 2 are fixedly engaged with the slit shell 1, firmly fixing the primary positioning block 2 to the inner side of the slit shell 1. The primary positioning block 2 and the secondary positioning block 3 work together to guide and constrain the baffle 4 from different positions, further enhancing the stability of the baffle 4's movement. This dual positioning design can effectively reduce the errors caused by uneven force or other factors during the movement of the baffle 4, ensuring the consistency and repeatability of the width adjustment of the light-transmitting slit 74, so that the adjustable slit can maintain reliable performance in different usage scenarios.

[0026] It is worth noting that the engaging groove 72 on one side of the slit shell 1 engages with the outer side of the slit cover 7. This engaging design makes the installation and removal of the slit cover 7 very convenient and quick. When the slit cover 7 needs to be installed, simply align it with the engaging groove 72 and press gently to complete the initial connection; when it needs to be disassembled for maintenance or replacement, only a certain amount of external force is needed to remove the slit cover 7. This design not only improves the assembly efficiency of the equipment, but also facilitates cleaning and maintenance of the adjustable slit, reducing maintenance costs and time costs.

[0027] It is worth mentioning that the two mounting holes 71 on one side of the inner wall of the locking groove 72 cooperate with the two mounting bolts 73 inserted on one side of the slit cover 7. After the slit cover 7 is engaged with the locking groove 72, tightening the mounting bolts 73 to fix it to the mounting holes 71 further enhances the connection strength and stability between the slit cover 7 and the slit shell 1. This double fixing method can effectively prevent the slit cover 7 from loosening or falling off due to vibration, collision or other factors during use, ensuring the overall structural integrity of the adjustable slit, avoiding problems such as light leakage caused by a loose connection of the slit cover 7, and ensuring the normal operation of the optical path system.

[0028] It is worth emphasizing that the light-transmitting slit 74, located on one side of the slit cover 7 and adjacent to the baffle 4, is the key channel for light to pass through. By adjusting the position of the baffle 4, the effective width of the light-transmitting slit 74 can be changed, thereby achieving precise control over parameters such as the intensity and shape of the transmitted light. This design allows the adjustable slit to flexibly adapt to different optical path requirements. For example, when experiments require beams of different widths, the desired beam parameters can be quickly obtained simply by adjusting the baffle 4, greatly improving the efficiency and flexibility of experiments and providing strong support for optical research and applications.

[0029] Working Principle: When using this adjustable slit for optical paths, first, install the slit housing 1 in the appropriate position of the optical system according to the design requirements, ensuring accurate alignment with other optical components. Next, align the slit cover 7 with the engaging groove 72 on one side of the slit housing 1, and gently press to engage them. Then, use the mounting bolt 73 to pass through the slit cover 7 and screw it into the mounting hole 71 on the inner wall of the engaging groove 72 to securely fix the slit cover 7. When it is necessary to adjust the effective width of the light-transmitting slit 74, the operator holds the handle 6 at one end of the adjusting rod 5 and rotates it. Since the adjusting rod 5 is threaded into the slit housing 1, rotation will cause the adjusting rod 5 to move axially, thereby moving the baffle 4 sleeved on the outer side of one end of the adjusting rod 5. During the movement of the baffle 4, the inner sides of the primary positioning block 2 and the secondary positioning block 3 slide against the baffle 4, providing stable guidance for the baffle 4 and ensuring its linearity and smoothness of movement, until the light-transmitting slit 74 is adjusted to the required width to meet the needs of different optical path experiments or applications.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable slit for use in an optical path, comprising a slit shell (1), characterized in that: A slit cover (7) is provided on one side of the slit shell (1). An adjusting rod (5) is threaded into the outer side of the slit shell (1). A handle (6) is fixedly provided at one end of the adjusting rod (5). A baffle (4) is sleeved on the outer side of one end of the adjusting rod (5). Secondary positioning blocks (3) are fixedly provided on both inner walls of the slit shell (1). A primary positioning block (2) is fixedly provided on the inner side of the slit shell (1). The inner sides of the primary positioning block (2) and the secondary positioning block (3) slide against the baffle (4).

2. An adjustable slit for use in an optical path according to claim 1, characterized in that: The baffle (4) has a limiting groove (41) on its inner side, and a limiting plate (51) is fixedly provided at one end of the adjusting rod (5). The outer side of the limiting plate (51) is in contact with the limiting groove (41).

3. An adjustable slit for use in an optical path according to claim 1, characterized in that: Two secondary mounting bolts (31) are inserted on one side of the secondary positioning block (3), and the secondary mounting bolts (31) are fixedly engaged with the slit shell (1).

4. An adjustable slit for use in an optical path according to claim 1, characterized in that: Two primary mounting bolts (21) are inserted on one side of the primary positioning block (2), and the primary mounting bolts (21) are fixedly engaged with the slit shell (1).

5. An adjustable slit for use in an optical path according to claim 1, characterized in that: The slit shell (1) has a locking groove (72) on one side, and the inner side of the locking groove (72) is engaged with the outer side of the slit cover (7).

6. An adjustable slit for use in an optical path according to claim 5, characterized in that: Two mounting holes (71) are provided on one side of the inner wall of the locking groove (72), and two mounting bolts (73) are inserted into one side of the slit cover (7), and the mounting bolts (73) are fixedly engaged with the mounting holes (71).

7. An adjustable slit for use in an optical path according to claim 1, characterized in that: A light-transmitting slit (74) is provided on one side of the slit cover (7), and the light-transmitting slit (74) is located on one side of the baffle (4).

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