Auxiliary installation equipment and debugging method

Abstract

The embodiment of the invention provides auxiliary mounting equipment and a debugging method, the auxiliary mounting equipment is used for mounting and debugging an off-axis parabolic mirror, and the auxiliary mounting equipment comprises a constraint diaphragm which is used for blocking edge light beams in incident light and only allowing a central light beam of the incident light to pass through; the angle measuring devices are arranged on one side of the constraint diaphragm at intervals along the incident direction of the light; the focus positioning devices are arranged on one side of the angle measuring device at intervals in the reflection direction of the light, and the focus positioning devices are used for positioning the focus of the off-axis parabolic mirror; the cable comprises a first section and a second section, the first section is connected with the constraint diaphragm and the angle measuring device, and the second section is connected with the angle measuring device and the focus positioning device; wherein the angle measuring device is used for measuring an included angle alpha between the first section and the second section. According to the auxiliary mounting equipment provided by the embodiment of the invention, the mounting and debugging operation of the off-axis parabolic mirror is greatly simplified, and the working efficiency and the overall performance of the system are remarkably improved.

Description

Technical Field

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

[0002] With the significant enhancement of my country's scientific research strength and manufacturing level, the application field of large-scale optical systems (especially optical devices that reach the terawatt and petawatt levels) has been greatly expanded, and has been widely extended to the research and development of new high-energy ion / electron accelerators, plasma physics detection, and cutting-edge medical treatment. In view of the fact that such optical systems have a beam diameter of the order of tens of centimeters, the off-axis parabolic mirrors on which they rely for focusing often need to have a long focal length of 1 to 2 meters. At the same time, in order to ensure the quality of the beam, all optical components must operate in a vacuum environment. This special environment requires an extremely compact cavity design, which greatly limits the installation space of the off-axis parabolic mirror.

[0003] Furthermore, in order to achieve efficient and precise focusing of the light beam, the installation and debugging process of the off-axis parabolic mirror is crucial and needs to be highly accurate. However, due to its unique focusing mechanism, the off-axis parabolic mirror with a long focal length and large aperture has extremely strict control over the relative angle between the incident light and the mirror, which directly increases the difficulty of installation and debugging.

[0004] In summary, faced with the increasingly extensive application demands and challenges of large-scale optical systems, achieving precise installation and debugging of off-axis parabolic mirrors in a limited space is a thorny problem in the industry. Summary of the invention

[0005] In view of this, the embodiments of the present application provide an auxiliary installation device and a debugging method to solve the technical problems of the existing off-axis parabolic mirrors that are difficult to accurately install and debug.

[0006] In a first aspect, an embodiment of the present application provides an auxiliary installation device, the auxiliary installation device is used for installation and debugging of an off-axis parabolic mirror, and the auxiliary installation device includes:

[0007] A constraining aperture is arranged on the work surface and is movable along a first direction, and the constraining aperture is used to block the edge light beams of the incident light and only allow the central light beam of the incident light to pass through;

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

[0009] A focus positioning device, arranged at intervals on one side of the angle measuring device along the reflection direction of the light, the focus positioning device being used to position the focus of the off-axis parabolic mirror; and

[0010] A cable, comprising a first section and a second section, wherein the first section is connected to the second section, the first section connects the constraining aperture and the angle measuring device, and the second section connects the angle measuring device and the focus positioning device;

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

[0012] In some embodiments, the 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 central 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 comprises:

[0015] A first base is provided on the work surface;

[0016] A first support rod, movably disposed on the first base along a first direction, the first support rod being connected to the constraining aperture; and

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

[0018] Wherein, the height of the constraining aperture is adjusted by adjusting the relative height between the first support rod and the first base.

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

[0020] The orthographic projection of the first section of the cable on the work surface coincides with the orthographic projection of the central light beam passing through the constraining aperture on the work surface.

[0021] In some embodiments, a winding box is further provided at one end of the constraining aperture away from the first supporting rod. The winding box is arranged on the pillar, and the winding box is used for storing and extracting the cable.

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

[0023] A second base is provided on the work surface;

[0024] A second support rod is movably disposed on the second base along a first direction; and

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

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

[0027] In some embodiments, a first connecting member is provided at the zero scale of the angle measuring instrument, and the first connecting member is used to connect and fix the cable.

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

[0029] The third base is arranged on the work surface;

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

[0031] A focus positioning plate is connected to the third support rod, and a focus positioning hole is formed on the focus positioning plate, and the focus positioning hole is used to position the focus of the off-axis parabolic mirror.

[0032] In some embodiments, the focus positioning device also includes a third limiter, which is disposed on the third base and one end of which is abutted against the third support rod, and the third limiter is used to fix the position of the third support rod on the third base.

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

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

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

[0036] In a second aspect, an embodiment of the present application provides a debugging method, using the auxiliary installation device described in the first aspect to install and debug an off-axis parabolic mirror, the debugging method comprising:

[0037] Adjusting the first segment so that the first segment is parallel to the central light beam passing through the constraining aperture and one end of the first segment coincides with the zero scale in the angle measuring device;

[0038] Adjusting the center of the off-axis parabolic mirror to be directly below the zero scale in the angle measuring device;

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

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

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

[0042] The off-axis parabolic mirror is rotated so that the focusing focus of the off-axis parabolic mirror is located in the focus positioning hole in the focus positioning device.

[0043] The auxiliary installation equipment and debugging method provided in the embodiment of the present application can accurately focus the position of the focal point and the laser emission angle through the cooperation of the constrained aperture, the angle measuring device, the focus positioning device and the cable, thereby greatly simplifying the complexity of the installation and debugging process of the long focal length and large-aperture off-axis parabolic mirror, and significantly improving the work efficiency and the overall performance of the system. The auxiliary installation equipment provided in the embodiment of the present application can quickly complete the adjustment of the off-axis parabolic mirror in both vertical and horizontal dimensions, with an angle error of less than 0.2 degrees. Moreover, it has a high degree of freedom in adjustment, good stability and a wide range of application platforms, a simple structure, convenient processing, safe and stable operation and strong reliability; it is easy to adjust, replace, improve and expand functions, and can be applied to large-scale precision instruments with different indicators, which can achieve the expansion of the effective adjustment platform capabilities.

[0044] The debugging method provided in the present application has simplified steps and simple operation, and can quickly and accurately debug and install the off-axis parabolic mirror. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 is a structural schematic diagram of an auxiliary installation device provided in an embodiment of the present application;

[0047] Figure 2 yes Figure 1 A schematic diagram of the structure of the constrained aperture device;

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

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

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

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

[0052] Figure 7 It is a schematic diagram of the working status of the auxiliary installation equipment provided in an embodiment of the present application.

[0053] Among them, the figure numbers are:

[0054] 100. Off-axis parabolic mirror;

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

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

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

[0058] 40, cable; 400, first section; 401, second section;

[0059] 50. Roll box. DETAILED DESCRIPTION

[0060] In the following description, specific details such as specific system structures, technologies, etc. are proposed for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the embodiments of the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the embodiments of the present application.

[0061] It should also be understood that the term “and / or” used in the description of the embodiments of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

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

[0063] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0064] In addition, in the description of the embodiments of the present application and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0065] References to "some embodiments" or "some embodiments" etc. described in the specification of the embodiments of the present application mean that one or more embodiments of the embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Thus, the statements "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in the different parts of this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" refers to two or more.

[0066] An off-axis parabolic mirror (OAP) is a special type of reflector whose reflective surface is cut from a portion of a standard parabola, rather than a whole symmetrical parabola. This design allows light to be incident on the mirror at an angle and converge to a focus after reflection, which is not in the path of the incident light. This feature makes off-axis parabolic mirrors very suitable for applications that need to avoid blocking the light path, such as in astronomical observations, laser systems, optical measurements, and other precision optical systems.

[0067] Under normal circumstances, the cavity design is required to be extremely compact in special environments, which greatly limits the installation space of the off-axis parabolic mirror. In order to achieve efficient and precise focusing of the laser beam, the installation and debugging process of the off-axis parabolic mirror is crucial. In addition, the long-focal-length and large-aperture off-axis parabolic mirror has extremely stringent requirements on the control of the incident light and its relative angle due to its unique focusing mechanism, which directly increases the difficulty of installation and debugging. It is difficult to improve the overall stability and reliability of the system without the general method of auxiliary installation and adjustment, which increases the difficulty of the operation during repeated debugging.

[0068] The common installation method of long focal length and large aperture off-axis parabolic mirror requires the construction of a reference auxiliary laser optical path that is colinear with the laser optical path. Helium-neon laser is usually used as the reference laser, but there are the following problems: 1. The beam of helium-neon laser is only 2mm in diameter, but our actual beam reaches more than ten to several tens of centimeters. According to the theoretical calculation formula of 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 the diffraction limit. In this formula, M, λ and d are laser light source parameters. Due to the difference in parameters between the actual laser and the reference laser light source, the use of 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 focus, resulting in a large error. 2. The wavefront quality of the reference laser light source is completely different from that of the actual light source. The difference in wavefront quality will lead to differences in focus performance. 3. The construction of the reference-assisted laser optical path involves a more complex optical path. The inevitable difference between the reference optical path and the actual optical path greatly affects the installation of long-focal-length, large-aperture off-axis parabolic mirrors, requiring a more complex focus optimization process in the later stage.

[0069] Based on this, the embodiments of the present application provide an auxiliary installation device and a debugging method for the installation and debugging of off-axis parabolic mirrors. By constraining the aperture, cable, angle measuring device and focus positioning device, the focus position and the 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] In a first aspect, an embodiment of the present application provides an auxiliary installation device for installation and debugging of an off-axis parabolic mirror 100, such as Figure 1 As shown, the auxiliary installation equipment includes: a constrained aperture 11, an angle measuring device 20, a focus positioning device 30 and a cable 40;

[0071] The constraining aperture 11 is movable along the first direction and is disposed on the work surface. The constraining aperture 11 is used to block the edge beams of the incident light and only allow the central beam of the incident light to pass through.

[0072] The angle measuring device 20 is arranged at intervals on one side of the constraining aperture 11 along the incident direction of the light;

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

[0074] The cable 40 includes a first section 400 and a second section 401, the first section 400 and the second section 401 are connected, the first section 400 connects the constraining aperture 11 and the angle measuring device 20, and the second section 401 connects the angle measuring device 20 and the focus positioning device 30;

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

[0076] The auxiliary installation device provided in the embodiment of the present application blocks the edge beams of the incident light by the constraining aperture 11, and only allows the central beam to pass. This helps to reduce unnecessary stray light and ensure the purity of the optical path during the test; the angle measuring device 20 is used to measure the change in the incident angle of the light. The device can accurately adjust the angle of the OAP to ensure that the light is incident and reflected in the expected direction; the focus positioning device 30 is used to accurately locate the focus of the OAP. By adjusting the position and angle of the OAP, the reflected light is accurately converged to the predetermined focus. The cable 40 is used to transmit mechanical motion and position information. By measuring the angle α between the first section 400 and the second section 401, the angle change of the OAP can be indirectly obtained, so as to make precise adjustments. The working principle of the auxiliary installation device provided in the embodiment of the present application is to fix the OAP on the workbench to ensure that its approximate position and angle are correct. Adjust the position of the constraining aperture 11 so that it only allows the central beam to pass. Use the angle measuring device 20 to measure the angle of the incident light and record the initial reading. Adjust the angle of the OAP and observe the reading change of the angle measuring device 20 until the desired incident angle is reached. The focus positioning device 30 is used to detect the convergence point of the reflected light. The position and angle of the OAP are adjusted so that the reflected light is accurately converged to the predetermined focus. The angle of the OAP is further fine-tuned by the mechanical motion and position information transmitted by the cable 40. The angle α between the first section 400 and the second section 401 is measured and recorded to ensure that the angle and position of the OAP are in the optimal state.

[0077] In application, the auxiliary installation device provided by the present application is particularly suitable for occasions requiring high-precision optical alignment, such as calibration and maintenance of astronomical telescopes, optical path adjustment of laser processing equipment, and calibration of high-precision optical measurement systems. With this device, the installation and debugging efficiency of the off-axis parabolic mirror 100 can be significantly improved, 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 incident direction of the light is the Y direction in the figure, and the reverse direction of the reflection of the light is the X direction in the figure. The above is only for the convenience of understanding the technical solution of the present application and should not be understood as limiting the scope of protection of the embodiments of the present application.

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

[0080] The first section 400 is parallel to the central beam of the incident light, and the length of the second section 401 is equal to the focal length of the off-axis parabolic mirror 100. In this way, the focus of the OAP can be quickly located and the emission angle can be accurately determined, thereby quickly completing the installation and debugging of the OAP.

[0081] In applications, the off-axis angle is a key parameter of the OAP mirror, which determines the incident direction and reflection path of the light. By accurately measuring and adjusting the off-axis angle, the optimal performance of the OAP mirror in the optical system can be ensured. Determining the off-axis angle can help designers select the appropriate OAP mirror specifications to ensure that the light can be correctly reflected and converged to the desired focus. During installation and commissioning, by measuring and adjusting the off-axis angle, the correct alignment of the OAP mirror can be ensured to obtain the best optical performance. The off-axis design allows the light to be incident at an angle that deviates from the main axis, reducing the problem of shading and improving the compactness and efficiency of the system.

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

[0083] The first base 12 is disposed on the work surface;

[0084] The first support rod 13 is movably disposed on the first base 12 along a first direction, and the first support rod 13 is connected to the constraining 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 constraining aperture 11 is adjusted by adjusting the relative height between the first support rod 13 and the first base 12. In this way, by adjusting the height of the first support rod 13, the height of the small hole in the constraining aperture 11 can be adjusted to be consistent with the height of the focus positioning device 30, so as to achieve an 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 the desktop to facilitate the installation and debugging of the OAP.

[0088] In application, the first position-limiting member 14 is a locking screw, the first base 12 is provided with a slide groove (or a perforation), the first support rod 13 is slidably installed in the slide groove, and the locking screw is arranged on the side wall of the first base 12, and one end thereof penetrates the side wall of the first base 12 and is used to abut against the first support rod 13, so that the position-limiting function can be achieved, and the height of the central small hole of the constraining aperture 11 can be adjusted. Furthermore, a scale is also provided on the first support rod 13, and the scale shows the actual height of the central small hole of the constraining aperture 11, so that it is convenient for intuitive adjustment.

[0089] In some embodiments, Figure 2 and Figure 3 As shown, a support 15 is provided at one end of the constraining aperture 11 away from the first supporting rod 13, and a through hole 150 is provided on the support 15 for the cable 40 to pass through;

[0090] The orthographic projection of the first section 400 of the cable 40 on the work surface coincides with the orthographic projection of the central light beam passing through the constraining aperture 11 on the work surface. This is done so that the central light beam passing through the central aperture of the constraining aperture 11 is replaced by the first section 400 of the cable 40, and the reflected light is replaced by the second section 401, so that the angle between the incident light and the reflected light, i.e., the off-axis angle, is reflected by the angle α between the first section 400 and the second section 401. In this way, the actual off-axis angle of the OAP can be accurately measured, thereby achieving accurate installation and debugging.

[0091] In application, the first section 400 of the cable 40 can be directly disposed on the constraining aperture 11 , can be directly connected to the support 15 , or can be fixed through a through hole 150 provided on the support 15 .

[0092] In some embodiments, Figure 2 and Figure 3 As shown, a winding box 50 is further provided at one end of the constraining aperture 11 away from the first supporting rod 13. The winding box 50 is provided on the support column 15, and is used for storing and extracting the cable 40. In this way, it is convenient to extract the storage box of the cable 40. When it is not needed, the winding box 50 can store the entire cable 40 for convenient transportation and storage. When it is needed, it can be directly extracted from the winding box 50.

[0093] In some embodiments, 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 disposed on the work surface;

[0095] The second support rod 22 is movably disposed on the second base 21 along the first direction;

[0096] The angle measuring instrument 23 is connected to the second support rod 22, and is used to measure the angle α between the first section 400 and the second section 401. In this way, by moving the second support rod 22 along the first direction and setting it on the second base 21, in conjunction with the constraining aperture 11, the first section 400 of the cable 40 can be set parallel to the central beam of the incident light, that is, when the height of the constraining aperture 11 needs to be adjusted, the height of the angle measuring instrument 23 is adjusted synchronously to ensure that the angle measured by the angle measuring instrument 23 is accurate.

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

[0098] In some embodiments, Figure 4 and Figure 5 As shown, a first connecting member 25 is provided at the zero scale of the angle measuring instrument 23, and the first connecting member 25 is used to connect the fixed cable 40. In application, the first connecting member 25 is a support rod, and the cable 40 turns around the support rod and connects to the focus positioning device 30. In this way, the off-axis angle of the OAP can be indirectly fed back through the angle between the first section 400 and the second section 401 to the greatest extent.

[0099] In some embodiments, 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 disposed on the work surface;

[0101] The third support rod 32 is movably disposed on the third base 31 along the first direction;

[0102] The focus positioning plate 33 is connected to the third support rod 32, and a focus positioning hole 330 is provided on the focus positioning plate 33, and the focus positioning hole 330 is used to locate the focus 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 constraining 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 central beam of the incident light, and the second section 401 can be parallel to the reflected light, that is, when the height of the constraining aperture 11 needs to be adjusted, the height of the angle measuring instrument 23 and the focus positioning hole 330 is adjusted synchronously to ensure that the angle measured by the angle measuring instrument 23 is accurate, and the central small hole of the constraining aperture 11 and the focus positioning hole 330 are at the same height.

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

[0104] In some embodiments, 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, and the second connector 35 is used to connect and fix the second section 401. In application, the second connector 35 is a fixing hole, so as to facilitate the fixing of the second section 401 of the cable 40.

[0105] In some embodiments, the aperture of the constrained aperture 11 is adjustable. In this way, the quality of the beam can be improved. By adjusting the aperture, the edge parts of the incident beam can be filtered out. These edge parts often contain more stray light and diffraction effects, which affect the imaging quality. Only allowing the central part of the beam to pass can significantly improve the quality of the beam. Adjusting the aperture can change the light intensity distribution of the beam to make it more uniform, which is very important for applications that require high uniformity (such as laser processing, optical measurement, etc.). Different light sources and optical systems may require different beam sizes. The adjustable aperture allows the same set of equipment to adapt to a variety of light sources and system configurations, increasing the versatility and flexibility of the equipment. For different experimental conditions and application scenarios, the performance of the system can be optimized and the compatibility can be improved by adjusting the aperture. By limiting the aperture, the influence of background noise and stray light can be reduced and the signal-to-noise ratio can be improved. This is especially important for optical measurement and imaging applications that require high sensitivity. In an imaging system, reducing stray light can improve the contrast of the image and make the details clearer. The adjustable aperture helps to accurately align the components in the optical system. By gradually adjusting the aperture size, it is easier to find the best alignment position. During the debugging process, the aperture can be dynamically adjusted as needed, and the changes in system performance can be observed in real time, so as to quickly find the optimal configuration. For some sensitive optical components (such as detectors, sensors, etc.), excessively strong beams may cause damage. By adjusting the aperture, the intensity of the beam can be controlled to protect these components from damage. In microscopes and imaging systems, the resolution of the system can be optimized by adjusting the aperture, especially when imaging at high magnification. The size of the aperture will affect the depth of focus of the system, and the depth of focus can be adjusted by adjusting the aperture to suit different application scenarios.

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

[0107] The embodiment of the present application further provides a debugging method, which uses the auxiliary installation device described in the first aspect to install and debug the off-axis parabolic mirror, and the debugging method includes:

[0108] S10, adjusting the first segment so that the first segment is parallel to the central light beam passing through the constraining aperture, and one end of the first segment coincides with the zero scale in the angle measuring device;

[0109] S20, adjusting the center of the off-axis parabolic mirror to be directly below the zero scale in the angle measurement device;

[0110] S30, adjusting the height of the small hole in the constraining aperture to be equal to the height of the focus positioning device;

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

[0112] S50, adjusting the angle α between the first section and the second section to be equal to the off-axis angle of the off-axis parabolic mirror;

[0113] S60, rotating the off-axis parabolic mirror so that the focusing focus of the off-axis parabolic mirror is located in the focus positioning hole in the focus positioning device.

[0114] The debugging method provided in the embodiment of the present application first ensures that the first section of the cable is parallel to the light beam passing through the center of the constrained aperture, and one end is aligned with the zero scale of the angle measuring device. This step is to establish a reference datum so that other components can be accurately adjusted later. Adjustment of the position of the off-axis parabolic mirror: adjust the center of the off-axis parabolic mirror to be directly below the zero scale of the angle measuring device. This is to ensure that the off-axis parabolic mirror is in the correct position so that it can accurately receive and reflect light. Adjust the height of the small hole in the constrained aperture to be the same as the height of the focus positioning device. Doing so can ensure that the light beam can correctly reach the focus positioning device after passing through the aperture, which helps to improve the accuracy of debugging. By adjusting the distance between the angle measuring device and the focus positioning device, the length of the second section 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. Adjust the angle α between the first section and the second section so that it is equal to the off-axis angle of the off-axis parabolic mirror. This is because the design characteristics of the off-axis parabolic mirror determine that it has a specific off-axis angle. Only when the angle of the incident light matches this off-axis angle can the best focusing effect be achieved. Rotate the off-axis parabolic mirror until the focus of its reflection is accurately located in the focus positioning hole in the focus positioning device. This step is used to verify whether the previous adjustment is correct and finally complete the precise installation and debugging of the off-axis parabolic mirror.

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

[0116] In step S10, the first section is adjusted so that the first section is parallel to the central light beam passing through the constrained aperture and one end of the first section coincides with the zero scale in the angle measuring device. Even if the first section of the cable is parallel to the central light beam and the first section is connected to the support rod at the zero scale of the angle measuring instrument, the accuracy of the incident angle can be guaranteed to the greatest extent.

[0117] In step S20, the center of the off-axis parabolic mirror is adjusted to be located directly below the zero scale in the angle measuring device. This is to ensure that the position where the OAP is reflected and focused is located directly below the zero scale of the angle measuring instrument, so that the angle between the incident light and the reflected light can be indirectly reflected by the angle between the first segment and the second segment.

[0118] In step S30, the height of the small hole in the constraining aperture is adjusted to be equal to the height of the focus positioning device. In application, the height of the small hole in the constraining aperture and the focus positioning hole are adjusted to be consistent, so as to ensure that the focus after focusing can be located in the focus positioning hole, thereby achieving an ideal height.

[0119] In step S40, the distance between the angle measuring device and the focus positioning device is adjusted, and 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 scale 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, so that the focus can be positioned in the focus positioning hole.

[0120] In step S50, the angle α between the first section and the second section 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 fixture between the first section and the second section.

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

[0122] See also Figure 7 , a schematic diagram of the auxiliary installation device of the present application when it is working. After the incident light passes through the constrained aperture 11 with an adjustable aperture, the constrained aperture 11 only allows the central light beam to pass through. The central light beam is incident on the OAP surface, and after reflection and focusing, the angle measuring device 20 and the focus positioning device 30 are placed according to the OAP position and the exit angle. The cable 40 in the winding box 50 is turned through the first connecting member 25 and fixed to the second connecting member 35.

[0123] The first section 400 is parallel to the central light beam, and the length of the second section 401 is consistent with the focal length of the OAP. The angle α between the first section 400 and the second section 401 is consistent with the off-axis angle required by the OAP, and the angle α can be measured and determined by the angle measuring instrument 23. Then adjust the position of the OAP so that the center of the OAP is located below the zero scale of the angle measuring instrument 23. Rotate the angle of the OAP so that the focus is located in the focus positioning hole 330. At this time, the angle of the outgoing focused light beam of the OAP and the incident angle reach the reflection angle required by the OAP, and the adjustment is completed.

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

[0125] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0126] The above-described embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the embodiments of the present application, and should all be included in the protection scope of the embodiments of the present application.

Claims

1. An auxiliary installation device, characterized in that: The auxiliary installation equipment is used for installation and debugging of off-axis parabolic mirrors, and the auxiliary installation equipment includes: A constraining aperture is arranged on the work surface and is movable along a first direction, and the constraining aperture is used to block the edge light beams of the incident light and only allow the central light beam of the incident light to pass through; An angle measuring device is arranged at intervals on one side of the constraining aperture along the incident direction of the light; A focus positioning device, arranged at intervals on one side of the angle measuring device along the reflection direction of the light, the focus positioning device being used to position the focus of the off-axis parabolic mirror; and A cable, comprising a first section and a second section, wherein the first section is connected to the second section, the first section connects the constraining aperture and the angle measuring device, and the second section connects the angle measuring device and the focus positioning device; Wherein, the angle measuring device is used to measure the angle α between the first segment and the second segment.

2. The auxiliary installation device according to claim 1, characterized in that: The angle α between the first section and the second section is equal to the off-axis angle of the off-axis parabolic mirror; The first segment is parallel to the central beam of the incident light, and the length of the second segment is equal to the focal length of the off-axis parabolic mirror.

3. The auxiliary installation device according to claim 1, characterized in that: The auxiliary installation equipment also includes: A first base is provided on the work surface; A first support rod, movably disposed on the first base along a first direction, the first support rod being connected to the constraining aperture; and A first position-limiting member, disposed on the first base, wherein one end of the first position-limiting member abuts against the first support rod; Wherein, the height of the constraining aperture is adjusted by adjusting the relative height between the first support rod and the first base.

4. The auxiliary installation device according to claim 3, characterized in that: A support is provided at one end of the constraining aperture away from the first supporting rod, and a through hole is provided on the support for the cable to pass through; The orthographic projection of the first section of the cable on the work surface coincides with the orthographic projection of the central light beam passing through the constraining aperture on the work surface.

5. The auxiliary installation device according to claim 4, characterized in that: A winding box is also provided at one end of the constraining aperture away from the first supporting rod, the winding box is arranged on the pillar, and the winding box is used for storing and extracting the cable; And / or, the aperture of the constraining aperture is adjustable; And / or, the constrained aperture includes one of a blade aperture, a sliding ring aperture, a spiral aperture and a digital electronically controlled aperture.

6. The auxiliary installation device according to claim 1, characterized in that: The angle measuring device comprises: A second base is provided on the work surface; A second support rod is movably disposed on the second base along a first direction; and An angle measuring instrument is connected to the second support rod, and is used to measure an angle α between the first section and the second section.

7. The auxiliary installation device according to claim 6, characterized in that: The angle measuring device further includes a second position-limiting member, the second position-limiting member is disposed on the second base, one end of the second position-limiting member is in contact with the second support rod, and the second position-limiting member is used to fix the position of the second support rod on the second base; And / or, a first connecting member is provided at the zero scale of the angle measuring instrument, and the first connecting member is used to connect and fix the cable.

8. The auxiliary installation device according to claim 1, characterized in that: The focus positioning device comprises: The third base is arranged on the work surface; A third support rod is movably disposed on the third base along the first direction; and A focus positioning plate is connected to the third support rod, and a focus positioning hole is formed on the focus positioning plate, and the focus positioning hole is used to position the focus of the off-axis parabolic mirror.

9. The auxiliary installation device according to claim 8, characterized in that: The focus positioning device further includes a third position-limiting member, which is disposed on the third base and one end of which abuts against the third support rod, and the third position-limiting member is used to fix the position of the third support rod on the third base; And / or, a second connecting member is provided at one end of the third support rod away from the third base, and the second connecting member is used for connecting and fixing the second section.

10. A debugging method, characterized in that: The auxiliary installation device according to any one of claims 1 to 9 is used to install and debug the off-axis parabolic mirror, and the debugging method comprises: Adjusting the first segment so that the first segment is parallel to the central light beam passing through the constraining aperture and one end of the first segment coincides with the zero scale in the angle measuring device; Adjusting the center of the off-axis parabolic mirror to be directly below the zero scale in the angle measuring device; Adjusting the height of the small hole in the constraining aperture to be equal to the height of the focus positioning device; Adjusting the distance between the angle measuring device and the focus positioning device, and making the length of the second section equal to the focal length of the off-axis parabolic mirror; Adjusting the included angle α between the first section and the second section to be equal to the off-axis angle of the off-axis parabolic mirror; The off-axis parabolic mirror is rotated so that the focusing focus of the off-axis parabolic mirror is located in the focus positioning hole in the focus positioning device.

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