Auxiliary installation device and debugging method

Abstract

This application provides an auxiliary installation device and debugging method. The auxiliary installation device is used for the installation and debugging of an off-axis parabolic mirror. The auxiliary installation device includes: a constraint aperture for blocking peripheral beams of incident light, allowing only the central beam of the incident light to pass through; an angle measuring device spaced along the incident direction of the light on one side of the constraint aperture; a focus positioning device spaced along the reflection direction of the light on one side of the angle measuring device, used to locate the focus of the off-axis parabolic mirror; and a cable including a first segment and a second segment. The first segment connects the constraint aperture and the angle measuring device, and the second segment connects the angle measuring device and the focus positioning device. The angle measuring device is used to measure the included angle α between the first segment and the second segment. The auxiliary installation device provided in this application greatly simplifies the installation and debugging operation of the off-axis parabolic mirror, significantly improving work efficiency and the overall performance of the system.

Description

Technical Field

[0001] This application belongs to the field of high-power optical fiber engineering technology, and in particular relates to an auxiliary installation device and debugging method. Background Technology

[0002] With the significant enhancement of my country's scientific research capabilities and manufacturing level, the application fields of large-scale optical systems (especially those reaching terawatt and petawatt levels) have been greatly expanded, extending to key areas such as the development of new high-energy ion / electron accelerators, plasma physics detection, and cutting-edge medical treatments. Given that such optical systems have beam diameters on the order of tens of centimeters, the off-axis parabolic mirrors upon which they rely for focusing often require a long focal length of 1 to 2 meters. Furthermore, to ensure beam quality, all optical components must operate in a vacuum environment. This unique environment necessitates an extremely compact cavity design, thus severely limiting the installation space for the off-axis parabolic mirrors.

[0003] Furthermore, in order to achieve efficient and precise focusing of the light beam, the installation and adjustment process of the off-axis parabolic mirror is crucial and requires a high degree of precision. However, due to their unique focusing mechanism, long-focal-length, large-aperture off-axis parabolic mirrors have extremely stringent requirements for controlling the incident light and its relative angle, which directly increases the difficulty of installation and adjustment.

[0004] In conclusion, given the increasingly widespread application needs and challenges of large-scale optical systems, achieving precise installation and adjustment of off-axis parabolic mirrors within limited space remains a challenging problem in the industry. Summary of the Invention

[0005] In view of this, embodiments of this application provide an auxiliary installation device and debugging method to solve the technical problem of the difficulty in accurate installation and debugging of existing off-axis parabolic mirrors.

[0006] In a first aspect, embodiments of this application provide an auxiliary installation device for the installation and adjustment of an off-axis parabolic mirror. The auxiliary installation device includes:

[0007] A constraint aperture is movable along a first direction and positioned on the worktable surface. The constraint aperture is used to block the edge beams of the incident light and allow only the center beams of the incident light to pass through.

[0008] An angle measuring device is arranged at intervals on one side of the constraint aperture along the incident direction of the light;

[0009] A focal positioning device is disposed at intervals along the direction of light reflection on one side of the angle measuring device, and the focal positioning device is used to locate the focal point of the off-axis parabolic mirror; and

[0010] The cable includes a first segment and a second segment, which are connected together. The first segment connects the constraint aperture and the angle measuring device, and the second segment connects the angle measuring device and the focus positioning device.

[0011] The angle measuring device is used to measure the included angle α between the first segment and the second segment.

[0012] In some embodiments, the included angle α between the first segment and the second segment is equal to the off-axis angle of the off-axis parabolic mirror;

[0013] The first segment is parallel to the center beam of the incident light, and the length of the second segment is equal to the focal length of the off-axis parabolic mirror.

[0014] In some embodiments, the auxiliary installation device further includes:

[0015] The first base is set on the workbench;

[0016] A first support rod is movable along a first direction and disposed on the first base; the first support rod is connected to the constraint aperture.

[0017] A first limiting member is disposed on the first base, and one end of the first limiting member abuts against the first adjusting rod;

[0018] The height of the constraint aperture is adjusted by adjusting the relative height of the first support rod to the first base.

[0019] In some embodiments, a support post is provided at the end of the constraint aperture away from the first support rod, and a through hole is provided on the support post for the cable to pass through;

[0020] The orthographic projection of the first segment of the cable on the worktable coincides with the orthographic projection of the central beam passing through the constraint aperture on the worktable.

[0021] In some embodiments, a cassette is provided at the end of the constraint aperture away from the first support rod. The cassette is located on the support column and is used for storing and retrieving the cable.

[0022] In some embodiments, the angle measuring device includes:

[0023] The second base is located on the workbench.

[0024] The second support rod is movable along the first direction and mounted on the second base; and

[0025] An angle measuring instrument is connected to the second support rod, and the angle measuring instrument is used to measure the included angle α between the first segment and the second segment.

[0026] In some embodiments, the angle measuring device further includes a second limiting member, which is disposed on the second base and one end of the second limiting member abuts against the second support rod. The second limiting member is used to fix the position of the second support rod on the second base.

[0027] In some embodiments, the angle measuring instrument has a first connector at the zero mark, the first connector being used to connect and fix the cable.

[0028] In some embodiments, the focus positioning device includes:

[0029] The third base is located on the workbench.

[0030] A third support rod is movably mounted on the third base along a first direction; and

[0031] A focal positioning plate is connected to the third support rod. The focal positioning plate has a focal positioning hole, which is used to position the focal point of the off-axis parabolic mirror.

[0032] In some embodiments, the focus positioning device further includes a third limiting member, which is disposed on the third base and one end of the third limiting member abuts against the third support rod. The third limiting member is used to fix the position of the third support rod on the third base.

[0033] In some embodiments, a second connector is provided at one end of the third support rod away from the third base, and the second connector is used to connect and fix the second segment.

[0034] In some embodiments, the aperture of the constraint aperture is adjustable.

[0035] In some embodiments, the constraint aperture includes one of a blade aperture, a sliding ring aperture, a spiral aperture, and a digitally controlled aperture.

[0036] Secondly, embodiments of this application provide a debugging method, which uses the auxiliary installation equipment described in the first aspect to install and debug an off-axis parabolic mirror, the debugging method comprising:

[0037] Adjust the first segment so that it is parallel to the central beam passing through the constraint aperture, and make one end of the first segment coincide with the zero mark in the angle measuring device;

[0038] The center of the off-axis parabolic mirror is adjusted to be directly below the zero mark in the angle measuring device;

[0039] Adjust the height of the small hole in the constraint aperture to be equal to the height of the focus positioning device;

[0040] Adjust the distance between the angle measuring device and the focus positioning device, and make the length of the second segment equal to the focal length of the off-axis parabolic mirror;

[0041] Adjust the included angle α between the first segment and the second segment to be equal to the off-axis angle of the off-axis parabolic mirror;

[0042] Rotate the off-axis parabolic mirror so that the focal point of the off-axis parabolic mirror is located in the focal positioning hole of the focal positioning device.

[0043] The auxiliary installation equipment and debugging method provided in this application, through the cooperation of a constraint aperture, an angle measuring device, a focus positioning device, and a cable, precisely focuses the position of the focal point and the laser emission angle, thereby greatly simplifying the complexity of the installation and debugging process of long focal length, large aperture off-axis parabolic mirrors, and significantly improving work efficiency and overall system performance. The auxiliary installation equipment provided in this application can quickly complete the vertical and horizontal adjustment of the off-axis parabolic mirror, with an angle error of less than 0.2 degrees. Moreover, it offers high degree of freedom in adjustment, good stability, and a wide range of application platforms. It has a simple structure, is easy to manufacture, and is safe, stable, and highly reliable in operation. It is easy to adjust, replace, improve, and expand its functions, making it suitable for large precision instruments with different specifications and effectively broadening the adjustment platform's capabilities.

[0044] The debugging method provided in this application is simplified in steps and easy to operate, enabling rapid and accurate debugging and installation of off-axis parabolic mirrors. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the structure of the auxiliary installation equipment provided in the embodiments of this application;

[0047] Figure 2 yes Figure 1 A schematic diagram of the constraint aperture device in the diagram;

[0048] Figure 3 yes Figure 2 Another perspective structural diagram;

[0049] Figure 4 yes Figure 1 Schematic diagram of the angle measuring device in the middle Figure 1 ;

[0050] Figure 5 yes Figure 1 Schematic diagram of the angle measuring device in the middle Figure 2 ;

[0051] Figure 6 yes Figure 1 A schematic diagram of the focus positioning device in the diagram;

[0052] Figure 7 This is a schematic diagram of the working state of the auxiliary installation equipment provided in the embodiments of this application.

[0053] The attached icon numbers are as follows:

[0054] 100. Off-axis parabolic mirror;

[0055] 10. Constraint aperture device; 11. Constraint aperture; 12. First base; 13. First support rod; 14. First limiting member; 15. Support column; 150. Through hole;

[0056] 20. Angle measuring device; 21. Second base; 22. Second support rod; 23. Angle measuring instrument; 24. Second limiting component; 25. First connecting component;

[0057] 30. Focus positioning device; 31. Third base; 32. Third support rod; 33. Focus positioning plate; 330. Focus positioning hole; 34. Third limiting member; 35. Second connecting member;

[0058] 40. Cable; 400. First section; 401. Second section;

[0059] 50. Roll box. Detailed Implementation

[0060] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that the embodiments of this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the embodiments of this application with unnecessary detail.

[0061] It should also be understood that the term "and / or" as used in the specification of embodiments of this application and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0062] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0063] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0064] Furthermore, in the description of the embodiments and the appended claims of this application, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0065] In the description of embodiments in this application, references to "some embodiments" or "some embodiments" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in some embodiments," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiments, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" refers to two or more.

[0066] An off-axis parabolic mirror (OAP) is a special type of mirror whose reflecting surface is a section of a standard parabola, rather than the entire symmetrical parabola. This design allows light rays to enter the mirror at an angle and converge to a single focal point after reflection, which is not located on the path of the incident light. This characteristic makes off-axis parabolic mirrors ideal for applications where it is necessary to avoid obstructing the path of light, such as in astronomical observation, laser systems, optical measurement, and other precision optical systems.

[0067] In typical environments, the extremely compact cavity design necessitates a high degree of spatial constraint, severely limiting the installation space for off-axis parabolic mirrors. The installation and adjustment process of these mirrors is crucial for achieving efficient and precise laser beam focusing. Furthermore, the unique focusing mechanism of long-focal-length, large-aperture off-axis parabolic mirrors places extremely stringent demands on the control of the incident light and its relative angle, directly increasing the difficulty of installation and adjustment. Conventional methods without auxiliary adjustment are insufficient to improve the overall stability and reliability of the system, and the repeated adjustments further complicate the process.

[0068] Common mounting methods for long-focal-length, large-aperture off-axis parabolic mirrors require the construction of a reference auxiliary laser path collinear with the laser beam path. Helium-neon lasers are typically used as the reference laser, but this presents the following problems: 1. The beam diameter of a helium-neon laser is only 2mm, while our actual beams reach tens of centimeters. According to the theoretical calculation formula for Gaussian focus... Where M is the beam quality factor, λ is the wavelength, d is the beam diameter, f is the focal length of the focusing lens, and S is the focal size under diffraction limit. In this formula, M, λ, and d are laser source parameters. Due to the difference between the parameters of the actual laser and the reference laser source, using a helium-neon reference laser to assist in the installation of a large-aperture off-axis parabolic mirror cannot accurately determine the position and angle of the actual focal point, leading to significant errors. 2. The wavefront quality of the reference laser source is completely different from that of the actual source, and this difference in wavefront quality leads to differences in focal point focusing performance. 3. The construction of the reference-assisted laser optical path involves a more complex optical path. The unavoidable differences between the reference optical path and the actual optical path greatly affect the installation of long-focal-length, large-aperture off-axis parabolic mirrors, requiring a more complex focal point optimization process later.

[0069] Based on this, this application provides an auxiliary installation device and debugging method for the installation and debugging of off-axis parabolic mirrors. By using a constraint aperture, cable, angle measuring device and focus positioning device, the focus position and laser emission angle are accurately determined, which greatly simplifies the installation and debugging process of long focal length and large aperture off-axis parabolic mirrors.

[0070] The first aspect of this application provides an auxiliary installation device for the installation and adjustment of an off-axis parabolic mirror 100, such as... Figure 1 As shown, the auxiliary installation equipment includes: a constraint aperture 11, an angle measuring device 20, a focus positioning device 30, and a cable 40;

[0071] The constraint aperture 11 is moved along the first direction and disposed on the worktable surface. The constraint aperture 11 is used to block the edge beam of the incident light and allow only the center beam of the incident light to pass through.

[0072] Angle measuring devices 20 are spaced apart on one side of the constraint aperture 11 along the incident direction of the light;

[0073] The focal positioning device 30 is arranged at intervals on one side of the angle measuring device 20 along the reflection direction of the light. The focal positioning device 30 is used to locate the focal point of the off-axis parabolic mirror 100.

[0074] The cable 40 includes a first segment 400 and a second segment 401, which are connected together. The first segment 400 is connected to the constraint aperture 11 and the angle measuring device 20, and the second segment 401 is connected to the angle measuring device 20 and the focus positioning device 30.

[0075] The angle measuring device 20 is used to measure the included angle α between the first segment 400 and the second segment 401.

[0076] The auxiliary installation device provided in this application embodiment blocks the edge beams of the incident light by using a constraint aperture 11, allowing only the central beam to pass through. This helps reduce unnecessary stray light and ensures the purity of the optical path during testing. An angle measuring device 20 is used to measure changes in the incident angle of the light. This device can precisely adjust the angle of the OAP to ensure that the light is incident and reflected in the expected direction. A focus positioning device 30 is used to precisely position the focus of the OAP. By adjusting the position and angle of the OAP, the reflected light is accurately focused onto the predetermined focus. A cable 40 is used to transmit mechanical movement and position information. By measuring the angle α between the first segment 400 and the second segment 401, the angle change of the OAP can be indirectly obtained, thereby enabling precise adjustment. The working principle of the auxiliary installation device provided in this application embodiment is as follows: The OAP is fixed on the worktable to ensure its approximate position and angle are correct. The position of the constraint aperture 11 is adjusted so that only the central beam passes through. The angle measuring device 20 is used to measure the angle of the incident light and record the initial reading. The angle of the OAP is adjusted, and the change in the reading of the angle measuring device 20 is observed until the desired incident angle is reached. The focal positioning device 30 is used to detect the convergence point of the reflected light rays. The position and angle of the OAP are adjusted so that the reflected light rays are accurately converged on the predetermined focal point. The angle of the OAP is further fine-tuned by transmitting mechanical motion and position information through the cable 40. The angle α between the first segment 400 and the second segment 401 is measured and recorded to ensure that the angle and position of the OAP are optimal.

[0077] In applications, the auxiliary installation equipment provided in this application is particularly suitable for occasions requiring high-precision optical alignment, such as the calibration and maintenance of astronomical telescopes, the optical path adjustment of laser processing equipment, and the calibration of high-precision optical measurement systems. This equipment can significantly improve the installation and adjustment efficiency of the off-axis parabolic mirror 100, ensuring its optimal performance in various applications.

[0078] It should be noted that the first direction mentioned above is the Z direction in the figure, the direction of incident light is the Y direction in the figure, and the direction of reflection of light is the X direction in the figure. The above is only for the convenience of understanding the technical solution of this application and should not be construed as a limitation on the protection scope of the embodiments of this application.

[0079] In some embodiments, such as Figure 7 As shown, the included angle α between the first segment 400 and the second segment 401 is equal to the off-axis angle of the off-axis parabolic mirror 100;

[0080] The first segment 400 is parallel to the center beam of the incident light, and the length of the second segment 401 is equal to the focal length of the off-axis parabolic mirror 100. This allows for rapid positioning of the OAP's focal point and precise determination of the exit angle, thus facilitating quick installation and adjustment of the OAP.

[0081] In applications, the off-axis angle is a critical parameter for OAP (Optical Angle Point) lenses, determining the incident direction and reflection path of light. Precise measurement and adjustment of the off-axis angle ensures optimal performance of the OAP lens within the optical system. Determining the off-axis angle helps designers select appropriate OAP lens specifications, ensuring light is correctly reflected and converges to the desired focal point. During installation and commissioning, measuring and adjusting the off-axis angle ensures proper alignment of the OAP lens, resulting in optimal optical performance. Off-axis design allows light to enter at an angle deviating from the principal axis, reducing obstruction and improving system compactness and efficiency.

[0082] In some embodiments, such as Figures 1 to 3 As shown, the auxiliary installation equipment also includes a first base 12, a first support rod 13, and a first limiting member 14;

[0083] The first base 12 is set on the workbench;

[0084] The first support rod 13 is movable along the first direction and is disposed on the first base 12. The first support rod 13 is connected to the constraint aperture 11.

[0085] The first limiting member 14 is disposed on the first base 12, and one end of the first limiting member 14 abuts against the first adjusting rod;

[0086] The height of the constraint aperture 11 is adjusted by adjusting the relative height of the first support rod 13 to the first base 12. This allows the height of the small hole in the constraint aperture 11 to be aligned with the height of the focus positioning device 30, achieving the ideal center height of the focus.

[0087] It should be noted that the work surface includes, but is not limited to, horizontal support surfaces such as the ground and desktop, to facilitate the installation and debugging of OAP.

[0088] In application, the first limiting member 14 is a locking screw, and the first base 12 has a groove (or a through hole). The first support rod 13 is slidably installed in the groove. The locking screw is located on the side wall of the first base 12, with one end passing through the side wall of the first base 12 and abutting against the first support rod 13. This achieves the limiting function and adjusts the height of the small hole in the center of the constraint aperture 11. Furthermore, the first support rod 13 is also provided with a scale that displays the actual height of the small hole in the center of the constraint aperture 11, facilitating intuitive adjustment.

[0089] In some embodiments, such as Figure 2 and Figure 3 As shown, the end of the constraint aperture 11 away from the first support rod 13 is provided with a support column 15, and the support column 15 is provided with a through hole 150 for the cable 40 to pass through.

[0090] In this design, the orthographic projection of the first segment 400 of cable 40 onto the worktable coincides with the orthographic projection of the central beam passing through the constraint aperture 11 onto the worktable. This is to replace the central beam passing through the central aperture of the constraint aperture 11 with the first segment 400 of cable 40, and to replace the reflected ray with the second segment 401. The angle α between the first segment 400 and the second segment 401 represents the angle between the incident and reflected rays, i.e., the off-axis angle. This allows for precise measurement of the actual off-axis angle of the OAP, thus enabling accurate installation and adjustment.

[0091] In application, the first segment 400 of the cable 40 can be directly set on the constraint aperture 11, or it can be directly connected to the support column 15, or it can be fixed through the through hole 150 in the support column 15.

[0092] In some embodiments, such as Figure 2 and Figure 3 As shown, a reel 50 is also provided at the end of the constraint aperture 11 away from the first support rod 13. The reel 50 is mounted on the support column 15 and is used for storing and retrieving the cable 40. In this way, it is convenient to retrieve the cable 40 from the storage box. When not in use, the reel 50 can store the entire cable 40 for easy transport and storage. When needed, it can be directly retrieved from the reel 50.

[0093] In some embodiments, such as Figure 4 and Figure 5 As shown, the angle measuring device 20 includes a second base 21, a second support rod 22, and an angle measuring instrument 23;

[0094] The second base 21 is set on the workbench surface;

[0095] The second support rod 22 is movable along the first direction and is mounted on the second base 21;

[0096] Angle measuring instrument 23 is connected to the second support rod 22. The angle measuring instrument 23 is used to measure the included angle α between the first segment 400 and the second segment 401. Thus, by moving the second support rod 22 along the first direction and setting it on the second base 21, in conjunction with the constraint aperture 11, the first segment 400 of the cable 40 can be arranged parallel to the center beam of the incident light. That is, when the height of the constraint aperture 11 needs to be adjusted, the height of the angle measuring instrument 23 is adjusted simultaneously to ensure that the angle measured by the angle measuring instrument 23 is accurate.

[0097] In some embodiments, such as Figure 4 and Figure 5 As shown, the angle measuring device 20 also includes a second limiting member 24, which is disposed on the second base 21, with one end of the second limiting member 24 abutting against the second support rod 22. The second limiting member 24 is used to fix the position of the second support rod 22 on the second base 21. In application, the second limiting member 24 is a locking screw. The arrangement and structure of the second limiting member 24 and the second base 21 are the same as or similar to those of the first limiting member 14 and the first base 12, so as to adjust the height of the angle measuring instrument 23 and the height of the first segment 400 of the cable 40, ensuring that the first segment 400 of the cable 40 is parallel to the center beam of the incident light.

[0098] In some embodiments, such as Figure 4 and Figure 5 As shown, the angle measuring instrument 23 has a first connector 25 at its zero mark, which is used to connect and fix the cable 40. In application, the first connector 25 is a support rod, and the cable 40 passes around the support rod and then turns to connect with the focus positioning device 30. In this way, the off-axis angle of the OAP can be indirectly fed back to the greatest extent through the included angle between the first segment 400 and the second segment 401.

[0099] In some embodiments, such as Figure 6 As shown, the focus positioning device 30 includes a third base 31, a third support rod 32, and a focus positioning plate 33;

[0100] The third base 31 is set on the workbench surface;

[0101] The third support rod 32 is movable along the first direction and is mounted on the third base 31;

[0102] The focal positioning plate 33 is connected to the third support rod 32. The focal positioning plate 33 has a focal positioning hole 330, which is used to position the focal point of the off-axis parabolic mirror 100. In this way, by moving the third support rod 32 along the first direction and setting it on the third base 31, in conjunction with the constraint aperture 11, the angle measuring instrument 23 and the first connecting member 25, the first section 400 of the cable 40 can be set parallel to the center beam of the incident light, and the second section 401 can be set parallel to the reflected light. That is, when it is necessary to adjust the height of the constraint aperture 11, the heights of the angle measuring instrument 23 and the focal positioning hole 330 are adjusted simultaneously to ensure that the angle measured by the angle measuring instrument 23 is accurate and that the central hole of the constraint aperture 11 and the focal positioning hole 330 are at the same height.

[0103] In some embodiments, such as Figure 6 As shown, the focus positioning device 30 also includes a third limiting member 34. The third limiting member 34 is disposed on the third base 31, and one end of the third limiting member 34 abuts against the third support rod 32. The third limiting member 34 is used to fix the position of the third support rod 32 on the third base 31. In application, the third limiting member 34 is a locking screw. The arrangement of the third limiting member 34 is the same as that of the first limiting member 14 and the second limiting member 24, which will not be described again here.

[0104] In some embodiments, such as Figure 6 As shown, the end of the third support rod 32 away from the third base 31 is provided with a second connector 35, which is used to connect and fix the second segment 401. In application, the second connector 35 is a fixing hole, which facilitates the fixing of the second segment 401 of the cable 40.

[0105] In some embodiments, the aperture of the constraint aperture 11 is adjustable. This improves beam quality; by adjusting the aperture, edge portions of the incident beam, which often contain more stray light and diffraction effects, can be filtered out, affecting image quality. Allowing only the central portion of the beam to pass through significantly improves beam quality. Adjusting the aperture alters the beam intensity distribution, making it more uniform, which is crucial for applications requiring high uniformity (such as laser processing and optical measurement). Different light sources and optical systems may require different beam sizes. An adjustable aperture allows the same setup to adapt to various light sources and system configurations, increasing versatility and flexibility. Adjusting the aperture can optimize system performance and improve compatibility for different experimental conditions and applications. Limiting the aperture reduces background noise and stray light, improving the signal-to-noise ratio. This is particularly important for optical measurement and imaging applications requiring high sensitivity. In imaging systems, reducing stray light improves image contrast and sharpens details. An adjustable aperture facilitates precise alignment of components within the optical system. By gradually adjusting the aperture size, the optimal alignment position can be found more easily. During debugging, the aperture can be dynamically adjusted as needed, and changes in system performance can be observed in real time to quickly find the optimal configuration. For some sensitive optical components (such as detectors and sensors), excessively strong light beams may cause damage. By adjusting the aperture, the intensity of the light beam can be controlled, protecting these components from damage. In microscopes and imaging systems, adjusting the aperture can optimize the system's resolution, especially during high-magnification imaging. The size of the aperture affects the system's depth of focus; adjusting the aperture allows for adjustment of the depth of focus to suit different application scenarios.

[0106] In some embodiments, the constraint aperture 11 includes one of a blade aperture, a sliding ring aperture, a spiral aperture, and a digitally controlled aperture.

[0107] This application embodiment also provides a debugging method, which uses the auxiliary installation equipment described in the first aspect to install and debug an off-axis parabolic mirror. The debugging method includes:

[0108] S10. Adjust the first segment so that it is parallel to the central beam passing through the constraint aperture, and make one end of the first segment coincide with the zero mark in the angle measuring device.

[0109] S20. Adjust the center of the off-axis parabolic mirror so that it is directly below the zero mark in the angle measuring device;

[0110] S30. Adjust the height of the small hole in the constraint aperture to be equal to the height of the focus positioning device;

[0111] S40. Adjust the distance between the angle measuring device and the focus positioning device, and make the length of the second segment equal to the focal length of the off-axis parabolic mirror;

[0112] S50. Adjust the included angle α between the first segment and the second segment to be equal to the off-axis angle of the off-axis parabolic mirror;

[0113] S60. Rotate the off-axis parabolic mirror so that the focal point of the off-axis parabolic mirror is located in the focal positioning hole of the focal positioning device.

[0114] The debugging method provided in this application first ensures that the first segment of the cable is parallel to the light beam passing through the center of the constraint aperture, and that one end is aligned with the zero mark of the angle measuring device. This step is to establish a reference base for subsequent precise adjustment of other components. The position of the off-axis parabolic mirror is adjusted: the center of the off-axis parabolic mirror is adjusted to be directly below the zero mark of the angle measuring device. This ensures that the off-axis parabolic mirror is in the correct position, thus accurately receiving and reflecting light. The height of the small hole in the constraint aperture is adjusted to be the same as the height of the focus positioning device. This ensures that the light beam reaches the focus positioning device correctly after passing through the aperture, helping to improve debugging accuracy. The distance between the angle measuring device and the focus positioning device is adjusted so that the length of the second segment is equal to the focal length of the off-axis parabolic mirror. This operation ensures that the light reflected from the off-axis parabolic mirror can accurately converge on the focus positioning device. The included angle α between the first and second segments is adjusted to be equal to the off-axis angle of the off-axis parabolic mirror. This is because the design characteristics of an off-axis parabolic mirror dictate that it has a specific off-axis angle. Optimal focusing can only be achieved when the angle of the incident light matches this off-axis angle. Rotate the off-axis parabolic mirror until its reflected focal point is precisely located in the focal positioning hole within the focal positioning device. This step verifies the correctness of the previous adjustments and ultimately completes the precise installation and adjustment of the off-axis parabolic mirror.

[0115] It should be noted that there is no restriction on the order of the above debugging steps. In the actual debugging process, steps S10, S20, S30, S40, and S50 can be executed first, and then the final step S60 can be started. Ultimately, the angle of the outgoing focused beam and the incident angle of the off-axis parabolic mirror can be made to reach the required reflection angle of the off-axis parabolic mirror, thereby completing the installation and debugging.

[0116] In step S10, the first segment is adjusted so that it is parallel to the central beam passing through the constraint aperture, and one end of the first segment coincides with the zero mark in the angle measuring device. This ensures the accuracy of the incident angle to the greatest extent possible, as the first segment of the cable is parallel to the central beam and connected to the support rod located at the zero mark of the angle measuring instrument.

[0117] In step S20, the center of the off-axis parabolic mirror is adjusted to be directly below the zero mark on the angle measuring device. This is to ensure that the point where the OAP (Off-Axis Array of Optical Arrays) is focused by reflection is directly below the zero mark on the angle measuring instrument, thus guaranteeing that the angle between the incident and reflected rays can be indirectly represented by the angle between the first and second segments.

[0118] In step S30, the height of the small hole in the constraint aperture is adjusted to be equal to the height of the focus positioning device. In application, the heights of the small hole in the constraint aperture and the focus positioning hole are adjusted to be consistent, thus ensuring that the focused point is located within the focus positioning hole, thereby achieving the ideal height.

[0119] In step S40, the distance between the angle measuring device and the focus positioning device is adjusted so that the length of the second segment is equal to the focal length of the off-axis parabolic mirror. In application, the distance between the zero mark of the angle measuring instrument and the focus positioning hole is adjusted so that the length of the second segment is equal to the focal length of the OAP, thus ensuring that the focus is positioned within the focus positioning hole.

[0120] In step S50, the included angle α between the first segment and the second segment is adjusted to be equal to the off-axis angle of the off-axis parabolic mirror. That is, the off-axis angle of the OAP is indirectly fed back through the clamp between the first segment and the second segment.

[0121] In step S60, the off-axis parabolic mirror is rotated so that its focal point is located within the focal positioning hole in the focal positioning device. At this point, the angle of the outgoing focused beam of the OAP and the incident angle reach the reflection angle required by the OAP, thus completing the adjustment.

[0122] See Figure 7 This is a schematic diagram of the auxiliary installation equipment in operation. After the incident light beam passes through the adjustable aperture restraint stop 11, the restraint stop 11 only allows the central beam to pass through. The central beam is incident on the OAP surface, reflected, and focused. Angle measuring device 20 and focus positioning device 30 are placed according to the OAP position and exit angle. The cable 40 inside the cassette 50 is redirected via the first connector 25 and then fixed to the second connector 35.

[0123] The first segment 400 is parallel to the center beam, and the length of the second segment 401 is the same as the focal length of the OAP. The angle α between the first segment 400 and the second segment 401 is the off-axis angle required by the OAP, and the angle α can be determined by measuring the angle measuring instrument 23. Then, adjust the position of the OAP so that the center of the OAP is below the zero mark of the angle measuring instrument 23. Rotate the angle of the OAP so that the focal point is located within the focal positioning hole 330. At this time, the angle of the emitted focused beam and the incident angle of the OAP reach the reflection angle required by the OAP, completing the adjustment.

[0124] The auxiliary installation equipment provided in this application can quickly complete the adjustment of OAP in both vertical and horizontal dimensions, and the angle error is less than 0.2 degrees.

[0125] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0126] The above-described embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of the embodiments of this application.

Claims

1. An auxiliary installation device, characterized in that, The auxiliary installation equipment is used for the installation and adjustment of long focal length, large aperture off-axis parabolic mirrors, and the auxiliary installation equipment includes: A constraint aperture is movable along a first direction and positioned on the worktable surface. The constraint aperture is used to block the edge beams of the incident light and allow only the center beams of the incident light to pass through. An angle measuring device is arranged at intervals on one side of the constraint aperture along the incident direction of the light; A focal positioning device is disposed at intervals along the direction of light reflection on one side of the angle measuring device, and the focal positioning device is used to locate the focal point of the off-axis parabolic mirror; and The cable includes a first segment and a second segment, the first segment and the second segment are connected, the first segment is connected to the constraint aperture and the angle measuring device, and the second segment is connected to the angle measuring device and the focus positioning device; The angle measuring device is used to measure the included angle α between the first segment and the second segment; The included angle α between the first segment and the second segment is equal to the off-axis angle of the off-axis parabolic mirror; The first segment is parallel to the center beam of the incident light, and the length of the second segment is equal to the focal length of the off-axis parabolic mirror.

2. The auxiliary installation equipment as described in claim 1, characterized in that, The auxiliary installation equipment also includes: The first base is set on the workbench; A first support rod is movable along a first direction and disposed on the first base; the first support rod is connected to the constraint aperture. A first limiting member is disposed on the first base, and one end of the first limiting member abuts against the first support rod; The height of the constraint aperture is adjusted by adjusting the relative height of the first support rod to the first base.

3. The auxiliary installation equipment as described in claim 2, characterized in that, The constraint aperture is provided with a support column at the end away from the first support rod, and the support column has a through hole for the cable to pass through; The orthographic projection of the first segment of the cable on the worktable coincides with the orthographic projection of the central beam passing through the constraint aperture on the worktable.

4. The auxiliary installation equipment as described in claim 3, characterized in that, The end of the constraint aperture away from the first support rod is also provided with a roll box, which is located on the support column and is used for storing and retrieving the cable. And / or, the aperture of the constraint aperture is adjustable; And / or, the constraint aperture includes one of the following: a blade aperture, a sliding ring aperture, a spiral aperture, and a digitally controlled aperture.

5. The auxiliary installation equipment as described in claim 1, characterized in that, The angle measuring device includes: The second base is located on the workbench. The second support rod is movable along the first direction and mounted on the second base; and An angle measuring instrument is connected to the second support rod, and the angle measuring instrument is used to measure the included angle α between the first segment and the second segment.

6. The auxiliary installation equipment as described in claim 5, characterized in that, The angle measuring device further includes a second limiting member, which is disposed on the second base and one end of the second limiting member abuts against the second support rod. The second limiting member is used to fix the position of the second support rod on the second base. And / or, the angle measuring instrument is provided with a first connector at the zero mark, the first connector being used to connect and fix the cable.

7. The auxiliary installation equipment as described in claim 1, characterized in that, The focus positioning device includes: The third base is located on the workbench. A third support rod is movably mounted on the third base along a first direction; and A focal positioning plate is connected to the third support rod. The focal positioning plate has a focal positioning hole, which is used to position the focal point of the off-axis parabolic mirror.

8. The auxiliary installation equipment as described in claim 7, characterized in that, The focus positioning device further includes a third limiting member, which is disposed on the third base and one end of the third limiting member abuts against the third support rod. The third limiting member is used to fix the position of the third support rod on the third base. And / or, the third support rod is provided with a second connector at one end away from the third base, the second connector being used to connect and fix the second segment.

9. A debugging method, characterized in that, The off-axis parabolic mirror is installed and adjusted using the auxiliary installation equipment described in any one of claims 1 to 8, wherein the adjustment method includes: Adjust the first segment so that it is parallel to the central beam passing through the constraint aperture, and make one end of the first segment coincide with the zero mark in the angle measuring device; The center of the off-axis parabolic mirror is adjusted to be directly below the zero mark in the angle measuring device; Adjust the height of the small hole in the constraint aperture to be equal to the height of the focus positioning device; Adjust the distance between the angle measuring device and the focus positioning device, and make the length of the second segment equal to the focal length of the off-axis parabolic mirror; Adjust the included angle α between the first segment and the second segment to be equal to the off-axis angle of the off-axis parabolic mirror; Rotate the off-axis parabolic mirror so that the focal point of the off-axis parabolic mirror is located in the focal positioning hole of the focal positioning device.

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