A reflective grating beam splitter

Abstract

The utility model relates to optical beam splitting equipment technical field, and disclose a kind of reflection grating beam splitter, including base subassembly, grating bearing subassembly, reflecting plate subassembly, base subassembly includes support seat, heat dissipation cavity being opened in support seat, with the liquid inlet and the liquid outlet of heat dissipation cavity intercommunication, and be located on the positioning hole of support seat, support seat uses aluminium alloy material, is made into high-strength, low deformation material.The utility model is positioned by the positioning hole and connecting block of base subassembly and grating bearing subassembly and adapts connection, and it is combined with the silicon rubber shock absorbing material quality of connecting block, and the fine adjustment function of grating mounting seat, both guarantee the stability of grating assembly, and can accurate adjustment grating working posture, effectively improve beam splitting precision, simultaneously detachable connection is convenient for equipment maintenance and function extension.

Description

Technical Field

[0001] This utility model relates to the field of optical beam splitting equipment technology, specifically a reflective grating beam splitter. Background Technology

[0002] In the field of optics, reflective grating beam splitters, with their unique beam splitting principle, can split incident light according to a specific rule. They are widely used in spectral analysis to obtain the spectral information of light, or in optical communication to achieve the rational distribution of signals.

[0003] Existing reflective grating beam splitters still have the following problems when in use: poor assembly stability between the grating and the support structure, which is easily affected by vibration and may cause displacement, resulting in a decrease in beam splitting accuracy; imperfect heat dissipation design, which can cause thermal deformation of optical components due to heat generated during long-term operation, interfering with the beam splitting effect; low degree of structural modularity, making it difficult to quickly replace gratings of different specifications to adapt to diverse beam splitting needs; and inconvenient adjustment of the reflector angle, which cannot flexibly cope with different incident light angle requirements. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a reflective grating beam splitter, which solves the problems of poor assembly stability, poor heat dissipation, low modularity, and inflexible adjustment of the reflector angle in existing equipment, thus affecting beam splitting accuracy and ease of use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a reflective grating beam splitter, comprising a base assembly, a grating carrier assembly, and a reflector assembly.

[0008] The base assembly includes a support base, a heat dissipation cavity opened in the support base, a liquid inlet and a liquid outlet communicating with the heat dissipation cavity, and a positioning hole provided on the support base. The support base is made of aluminum alloy, which is a high-strength, low-deformation material. It serves as the basic support structure of the entire beam splitter to ensure overall stability. The heat dissipation cavity is used to contain the circulating heat dissipation medium. The liquid inlet introduces the low-temperature heat dissipation medium, and the liquid outlet discharges the medium that has completed heat exchange. The positioning hole is used for precise assembly with the grating carrier component.

[0009] The grating support assembly includes a grating support substrate, a grating positioning groove on the grating support substrate, a grating pressure plate adapted to the grating positioning groove, and a grating body placed in the grating positioning groove. It also includes heat dissipation fins at the bottom of the grating support substrate, a grating mounting base for mounting the grating support substrate, and a connecting block for connecting the grating support assembly and the base assembly. The grating support substrate is made of Invar steel, a high-strength material with a low coefficient of thermal expansion, which reduces the impact of temperature changes on the grating installation accuracy. The grating positioning groove provides initial positioning for the grating body, the grating pressure plate further clamps and fixes it, the heat dissipation fins assist the heat dissipation cavity to enhance heat dissipation, the grating mounting base is used to support and mount the grating support substrate, and the connecting block is made of silicone rubber, which has a buffering and shock absorption function to reduce the transmission of external vibrations to the grating body.

[0010] The reflector assembly includes a reflector body, a protective film layer covering the surface of the reflector body, and a mounting frame for mounting the reflector body. The protective film layer is made of magnesium fluoride coating, which is a wear-resistant and pollution-resistant optical protective material to protect the reflective surface of the reflector body from damage. The mounting frame is used to assemble the reflector body onto the base assembly and other structures.

[0011] The grating carrier assembly is detachably connected by a connecting block and a positioning hole on the base assembly, which facilitates quick replacement of grating carrier assemblies of different specifications to meet beam splitting requirements.

[0012] The reflector assembly is connected to the base assembly via a mounting frame, and the mounting frame is provided with an angle adjustment scale, which can adjust the installation angle of the reflector body to adapt to different incident light angles and beam splitting scenarios.

[0013] As a further improvement of this utility model, the heat dissipation cavity is provided with a flow guide rib to guide the orderly flow of the heat dissipation medium, increase the contact area and time between the heat dissipation medium and the inner wall of the heat dissipation cavity, enhance the heat dissipation effect, and ensure the temperature stability of the beam splitter during long-term operation.

[0014] As a further improvement of this utility model, the grating mounting base has a clamping and fine-tuning mechanism, which can make fine adjustments to the horizontal and pitch angles of the grating body. Through the adjustment mechanism, the working posture of the grating body can be accurately calibrated, thereby improving the beam splitting accuracy.

[0015] As a further improvement of this utility model, the connecting block is made of silicone rubber. Utilizing the good elasticity and shock absorption properties of silicone rubber, it can effectively buffer and reduce vibration when the equipment is subjected to external vibration, and prevent the vibration from being transmitted to the grating body and affecting the beam splitting effect. At the same time, silicone rubber has a certain degree of weather resistance, ensuring connection stability and service life.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the positioning holes and connecting blocks of the base assembly and the grating support assembly are adapted and connected. Combined with the silicone rubber shock-absorbing material of the connecting block and the fine adjustment function of the grating mounting base, the stability of the grating assembly is ensured, the working posture of the grating can be accurately adjusted, the beam splitting accuracy is effectively improved, and the detachable connection facilitates equipment maintenance and functional expansion.

[0018] 2. In this utility model, the heat dissipation design of heat dissipation cavity, heat dissipation fins and flow guide ribs is combined with the low thermal expansion coefficient and high strength materials selected for each component, which solves the heat dissipation and thermal deformation problem of beam splitter, ensuring long-term stable operation of equipment. The angle adjustment scale design of reflector assembly allows the equipment to flexibly adapt to different incident light angles, improving the diversity and convenience of use scenarios. Attached Figure Description

[0019] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0020] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0021] Figure 3 This is a perspective view of the base assembly and reflector assembly of this utility model;

[0022] Figure 4 This is a perspective view of the grating carrier component of this utility model.

[0023] In the diagram: 1. Base assembly; 2. Grating carrier assembly; 3. Reflector assembly; 11. Support base; 12. Heat dissipation cavity; 13. Liquid inlet; 14. Liquid outlet; 15. Positioning hole; 16. Heat dissipation fins; 17. Grating mounting base; 18. Connecting block; 21. Grating carrier substrate; 22. Grating positioning groove; 23. Grating pressure plate; 24. Grating body; 31. Reflector body; 32. Protective film layer; 33. Mounting frame. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] It should be noted that the grating pattern and beam splitting principle of the grating body are existing technologies and common knowledge to those skilled in the art, and will not be elaborated here.

[0028] Please see Figures 1-4 In this embodiment of the present invention, a reflective grating beam splitter includes a base assembly 1, a grating support assembly 2, and a reflector assembly 3.

[0029] The base assembly 1 includes a support base 11, a heat dissipation cavity 12 opened in the support base 11, a liquid inlet 13 and a liquid outlet 14 communicating with the heat dissipation cavity 12, and a positioning hole 15 provided on the support base 11. The support base 11 is made of aluminum alloy, which is a high-strength, low-deformation material. It serves as the basic support structure of the entire beam splitter to ensure overall stability. The heat dissipation cavity 12 is used to contain the circulating heat dissipation medium. The liquid inlet 13 introduces the low-temperature heat dissipation medium, and the liquid outlet 14 discharges the medium that has completed heat exchange. The positioning hole 15 is used for precise assembly with the grating carrier assembly 2.

[0030] The grating support assembly 2 includes a grating support substrate 21, a grating positioning groove 22 disposed on the grating support substrate 21, a grating pressure plate 23 adapted to the grating positioning groove 22, and a grating body 24 placed in the grating positioning groove 22. It also includes heat dissipation fins 16 disposed at the bottom of the grating support substrate 21, a grating mounting seat 17 for mounting the grating support substrate 21, and a connecting block 18 for connecting the grating support assembly 2 and the base assembly 1. The grating support substrate 21 is made of Invar steel, which is a high-strength material with a low coefficient of thermal expansion, reducing the impact of temperature changes on the grating installation accuracy. The grating positioning groove 22 initially positions the grating body 24, and the grating pressure plate 23 further clamps and fixes it. The heat dissipation fins 16 assist the heat dissipation cavity 12 to enhance heat dissipation. The grating mounting seat 17 is used to support and mount the grating support substrate 21. The connecting block 18 is made of silicone rubber and has a buffering and shock absorption function to reduce the transmission of external vibrations to the grating body 24.

[0031] The reflector assembly 3 includes a reflector body 31, a protective film layer 32 covering the surface of the reflector body 31, and a mounting frame 33 for mounting the reflector body 31. The protective film layer 32 is made of magnesium fluoride coating, which is a wear-resistant and pollution-resistant optical protective material to protect the reflective surface of the reflector body 31 from damage. The mounting frame 33 is used to assemble the reflector body 31 onto the base assembly 1 and other structures.

[0032] The grating carrier assembly 2 is connected to the positioning hole 15 on the base assembly 1 via the connecting block 18, so as to achieve a detachable connection and facilitate quick replacement of grating carrier assemblies 2 of different specifications to adapt to beam splitting requirements.

[0033] The reflector assembly 3 is connected to the base assembly 1 via the mounting frame 33, and the mounting frame 33 is provided with an angle adjustment scale, which can adjust the installation angle of the reflector body 31 to adapt to different incident light angles and beam splitting scenarios.

[0034] The heat dissipation cavity 12 is equipped with a flow guide rib to guide the orderly flow of the heat dissipation medium, increase the contact area and time between the heat dissipation medium and the inner wall of the heat dissipation cavity 12, enhance the heat dissipation effect, and ensure the temperature stability of the beam splitter during long-term operation.

[0035] The grating mounting base 17 is equipped with a clamping and fine-tuning mechanism, which can make fine adjustments to the horizontal and pitch angles of the grating body 24. Through the adjustment mechanism (such as a fine-tuning screw, not shown in the figure), the working posture of the grating body 24 can be accurately calibrated, thereby improving the beam splitting accuracy.

[0036] The connecting block 18 is made of silicone rubber. Utilizing the good elasticity and shock absorption properties of silicone rubber, it effectively buffers and reduces vibrations when the equipment is subjected to external vibrations, preventing vibrations from being transmitted to the grating body 24 and affecting the beam splitting effect. At the same time, silicone rubber has a certain degree of weather resistance, ensuring connection stability and service life.

[0037] The working principle of this utility model is as follows: During assembly and use, firstly, the grating body 24 is placed in the grating positioning groove 22 of the grating carrier substrate 21 and clamped and fixed using the grating pressure plate 23. Then, the horizontal and pitch angles of the grating body 24 are adjusted to suitable positions using the fine-tuning mechanism of the grating mounting base 17. Next, the connecting block 18 is engaged with the positioning hole 15 of the base assembly 1 to install the grating carrier assembly 2 onto the base assembly 1. The silicone rubber connecting block 18 can buffer external vibrations. Finally, the reflector assembly 3 is installed... The mounting frame 33 is assembled onto the base assembly 1. Referring to the angle adjustment scale on the mounting frame 33, the angle of the reflector body 31 is adjusted to match the incident light angle requirements. The heat dissipation medium flows into the heat dissipation cavity 12 from the liquid inlet 13, is guided by the flow guide ribs, flows fully in the heat dissipation cavity 12, exchanges heat with the support base 11, and then flows out from the liquid outlet 14. At the same time, the heat dissipation fins 16 at the bottom of the grating carrier substrate 21 assist in heat dissipation. Through heat exchange with the air, the temperature of the equipment is further reduced, ensuring that each component works in a stable temperature environment.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reflective grating beam splitter, comprising a base assembly (1), a grating carrier assembly (2), and a reflector assembly (3); Its features are: The base assembly (1) includes a support base (11), a heat dissipation cavity (12) opened in the support base (11), an inlet (13) and an outlet (14) communicating with the heat dissipation cavity (12), and a positioning hole (15) provided on the support base (11). The grating support assembly (2) includes a grating support substrate (21), a grating positioning groove (22) disposed on the grating support substrate (21), a grating pressure plate (23) adapted to the grating positioning groove (22), a grating body (24) placed in the grating positioning groove (22), and also includes a heat dissipation fin (16) disposed at the bottom of the grating support substrate (21), a grating mounting base (17) for mounting the grating support substrate (21), and a connecting block (18) for connecting the grating support assembly (2) and the base assembly (1); The reflector assembly (3) includes a reflector body (31), a protective film layer (32) covering the surface of the reflector body (31), and a mounting frame (33) for mounting the reflector body (31); The grating carrier assembly (2) is connected to the positioning hole (15) on the base assembly (1) via the connecting block (18); The reflector assembly (3) is connected to the base assembly (1) via a mounting frame (33), and the mounting frame (33) is provided with an angle adjustment scale.

2. The reflective grating beam splitter according to claim 1, characterized in that: The heat dissipation cavity (12) is provided with a flow guide rib.

3. A reflective grating beam splitter according to claim 1, characterized in that: The grating mounting base (17) is equipped with a clamping and fine-tuning mechanism.

4. A reflective grating beam splitter according to claim 1, characterized in that: The connecting block (18) is made of silicone rubber.

5. A reflective grating beam splitter according to claim 1, characterized in that: The protective film layer (32) is coated with magnesium fluoride.

6. A reflective grating beam splitter according to claim 1, characterized in that: The grating carrier substrate (21) is made of Invar steel.

7. A reflective grating beam splitter according to claim 1, characterized in that: The support base (11) is made of aluminum alloy.

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