Adjustment device

Abstract

The present application provides an adjustment device, which is used to adjust the relative position of the slow-axis collimating cylinder and the fast-axis collimating cylinder in a cylinder group. In the adjustment device, the first support member and the second support member are arranged on the base at intervals, and at least one of the first support member and the second support member is installed on the base through a first adjustment platform. The first adjustment platform is used to adjust the relative position of the first support member and the second support member; the first detection mechanism is used to detect whether the side plane of the slow-axis collimating cylinder is parallel to the side plane of the fast-axis collimating cylinder; the second detection mechanism is used to detect whether the upper end surface of the slow-axis collimating cylinder away from the base is parallel to the upper end surface of the fast-axis collimating cylinder away from the base; the distance measurement mechanism is used to detect the horizontal distance between the side plane of the slow-axis collimating cylinder and the side plane of the fast-axis collimating cylinder. In the present application, the relative position of the slow-axis collimating cylinder and the fast-axis collimating cylinder can be completely determined by the adjustment device to ensure the assembly accuracy of the cylinder group.

Description

Technical Field

[0001] The present application belongs to the field of laser adjustment, and specifically relates to an adjustment device. Background Art

[0002] Currently, the market demand for LiDAR is increasing. Semiconductor lasers have become the most widely used lasers due to their mature technology and low price. However, semiconductor lasers themselves have the defects of large and asymmetric beam divergence angles, which requires the addition of an optical system to shape the beam so that the beam becomes a symmetrical beam with a small divergence angle after passing through it. At the same time, very high assembly and adjustment accuracy is required, which is currently difficult to guarantee.

[0003] Therefore, it is urgent to solve the problem of ineffective adjustment and improve the adjustment accuracy. Summary of the invention

[0004] The present application provides an adjustment device to solve the problem of insufficient adjustment accuracy.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an adjustment device, the adjustment device is used to adjust the relative positions of the slow-axis collimating cylindrical lens and the fast-axis collimating cylindrical lens in the cylindrical lens group, the adjustment device comprises a base, a first support member and a second support member, a first adjustment platform, a first detection mechanism, a second detection mechanism and a distance measurement mechanism; wherein the first support member and the second support member are arranged on the base at intervals, the first support member is used to support one of the slow-axis collimating cylindrical lens and the fast-axis collimating cylindrical lens, and the second support member is used to support the other of the slow-axis collimating cylindrical lens and the fast-axis collimating cylindrical lens. One; at least one of the first support member and the second support member is installed on the base through the first adjustment platform, and the first adjustment platform is used to adjust the relative positions of the first support member and the second support member; the first detection mechanism is used to detect whether the side plane of the slow axis collimating cylinder is parallel to the side plane of the fast axis collimating cylinder; the second detection mechanism is used to detect whether the upper end surface of the slow axis collimating cylinder away from the base is parallel to the upper end surface of the fast axis collimating cylinder away from the base; the distance measuring mechanism is used to detect the horizontal distance between the side plane of the slow axis collimating cylinder and the side plane of the fast axis collimating cylinder.

[0006] The beneficial effect of the present application is that the relative positions of the slow-axis collimating cylindrical lens and the fast-axis collimating cylindrical lens can be completely determined by the adjusting device in the present application, thereby ensuring the assembly accuracy of the cylindrical lens group. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0008] Figure 1 It is a structural schematic diagram of an embodiment of the regulating device in the present application;

[0009] Figure 2 is a schematic structural diagram of an embodiment of a cylindrical lens assembly in the present application;

[0010] Figure 3 It is a structural schematic diagram of an implementation method of the first detection mechanism in this application;

[0011] Figure 4 It is a structural schematic diagram of an implementation method of the distance measuring mechanism operation in this application;

[0012] Figure 5 It is a structural schematic diagram of another implementation method of the distance measuring mechanism operation in the present application;

[0013] Figure 6 It is a flow chart of an embodiment of zeroing processing of an adjusting device in the present application;

[0014] Figure 7 It is a structural schematic diagram of an implementation method of calibrating a first laser collimator and a first turning prism in the present application;

[0015] Figure 8 It is a structural schematic diagram of an implementation method of calibrating the second turning prism in the present application;

[0016] Fig. 9 is a structural schematic diagram of an implementation method for calibrating the second laser collimator in the present application;

[0017] Fig.10 It is a schematic diagram of a flow chart of an embodiment of using the adjustment device of the present application to adjust the cylindrical lens group;

[0018] Fig.11 It is a structural schematic diagram of an implementation method of the adjustment device in the present application adjusting the cylindrical lens group;

[0019] Fig.12 It is a structural schematic diagram of an implementation method of the second detection mechanism in the present application for detecting the cylindrical lens group.

[0020] Explanation of reference numerals: 100 adjusting device; 10 base; 21 first support member; 22 second support member; 23 first adjusting platform; 30 first detecting mechanism; 31 first laser collimator; 32 first steering prism; 33 second laser collimator; 34 second steering prism; 35 connecting block; 36 first collimator adjusting platform; 37 second collimator adjusting platform; 38 first prism adjusting platform; 39 second prism adjusting platform; 40 second detecting mechanism; 41 third laser collimator; 42 oblique beam splitter; 43 mounting bracket; 44 third collimator adjusting platform; 50 distance measuring mechanism; 51 first spectral confocal displacement sensor; 52 second spectral confocal displacement sensor; 60 displacement detecting mechanism; 61 first laser distance meter; 62 second laser distance meter; 1 cylindrical lens group; 2 fast axis collimating cylindrical lens; 3 fast axis collimating cylindrical lens mounting seat; 4 slow axis collimating cylindrical lens; 5 Slow axis collimating cylinder mount; 6 standard cube mirrors; 7 standard blocks; X first direction; Y second direction; Z third direction. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] See also Figure 1 and Figure 2The present application provides an adjustment device 100, which is used to adjust the relative positions of the slow-axis collimating cylindrical lens 4 and the fast-axis collimating cylindrical lens 2 in the cylindrical lens group 1. The adjustment device 100 includes a base 10, a first support member 21 and a second support member 22, a first adjustment platform 23, a first detection mechanism 30, a second detection mechanism 40 and a distance measurement mechanism 50; wherein the first support member 21 and the second support member 22 are arranged on the base 10 at intervals, the first support member 21 is used to support one of the slow-axis collimating cylindrical lens 4 and the fast-axis collimating cylindrical lens 2, and the second support member 22 is used to support one of the slow-axis collimating cylindrical lens 4 and the fast-axis collimating cylindrical lens 2. Another; at least one of the first support member 21 and the second support member 22 is installed on the base 10 through the first adjustment platform 23, and the first adjustment platform 23 is used to adjust the relative positions of the first support member 21 and the second support member 22; the first detection mechanism 30 is used to detect whether the side plane of the slow axis collimating cylinder 4 is parallel to the side plane of the fast axis collimating cylinder 2; the second detection mechanism 40 is used to detect whether the upper end surface of the slow axis collimating cylinder 4 away from the base 10 is parallel to the upper end surface of the fast axis collimating cylinder 2 away from the base 10; the distance measuring mechanism 50 is used to detect the horizontal distance between the side plane of the slow axis collimating cylinder 4 and the side plane of the fast axis collimating cylinder 2.

[0023] Specifically, the main function of the cylindrical lens group 1 is to convert the divergent light into parallel light, wherein the refractive index corresponding to the fast-axis collimating cylindrical lens 2 is higher, while the refractive index corresponding to the slow-axis collimating cylindrical lens 4 is lower. Through the specific structure and material in the cylindrical lens group 1, the lasers in the two directions of the fast-axis collimating cylindrical lens 2 and the slow-axis collimating cylindrical lens 4 can be collimated at the same time. This collimation not only reduces the number of cylindrical lenses, but also realizes the application of a small-volume cylindrical lens group, thereby improving the efficiency and performance of the laser. At the same time, the adjustment device 100 in the present application is suitable for the case where the side planes of the fast-axis collimating cylindrical lens 2 and the slow-axis collimating cylindrical lens 4 in the cylindrical lens group 1 are both outward, and the fast-axis collimating cylindrical lens 2 and the slow-axis collimating cylindrical lens 4 in the cylindrical lens group 1 both include a side plane. Specifically, in the direction of light propagation, one surface of the fast-axis collimating cylindrical lens 2 and the slow-axis collimating cylindrical lens 4 is a side plane, and the other surface is a lens with an arc surface. Among them, the fast-axis collimation cylinder 2 is located in the fast-axis collimation cylinder mounting seat 3, and the slow-axis collimation cylinder 4 is located in the slow-axis collimation cylinder mounting seat 5. There is a gap between the fast-axis collimation cylinder mounting seat 3 and the slow-axis collimation cylinder mounting seat 5. When the relative position between the fast-axis collimation cylinder 2 and the slow-axis collimation cylinder 4 is adjusted to meet the requirements through the adjustment device 100 of the present application, glue is dispensed at the gap between the fast-axis collimation cylinder mounting seat 3 and the slow-axis collimation cylinder mounting seat 5, so as to fix the fast-axis collimation cylinder 2 and the slow-axis collimation cylinder 4.

[0024] Specifically, in the adjustment device 100, the base 10 plays a supporting role, which is convenient for setting other structures in the adjustment device 100. The first support member 21 and the second support member 22 play the role of supporting the fast-axis collimating cylindrical lens 2 and the slow-axis collimating cylindrical lens 4 in the cylindrical lens group 1, wherein when the first support member 21 is used to support the fast-axis collimating cylindrical lens 2, the second support member 22 can be used to support the slow-axis collimating cylindrical lens 4. Alternatively, when the first support member 21 is used to support the slow-axis collimating cylindrical lens 4, the second support member 22 can be used to support the fast-axis collimating cylindrical lens 2. In this application, the supported members of the first support member 21 and the second support member 22 are not limited. When introducing the following adjustment device 100, the first support member 21 is used to support the fast-axis collimating cylindrical lens 2, and the second support member 22 can be used to support the slow-axis collimating cylindrical lens 4 for explanation.

[0025] At the same time, the adjustment device 100 also includes a first adjustment platform 23, and the first support member 21 can be installed on the base 10 through the first adjustment platform 23; or, the second support member 22 can be installed on the base 10 through the first adjustment platform 23; or, the number of the first adjustment platforms 23 is two, the first support member 21 is installed on the base 10 through one first adjustment platform 23, and the second support member 22 is installed on the base 10 through another first adjustment platform 23. Through the setting of the first adjustment platform 23, the relative position between the first support member 21 and the second support member 22 can be adjusted, that is, the relative position between the fast axis collimating cylindrical lens 2 and the slow axis collimating cylindrical lens 4 can be adjusted. In order to more clearly explain the function of the adjustment device 100, in the subsequent description of this application, the structural feature that the second support member 22 is installed on the base 10 through the first adjustment platform 23 will be described.

[0026] Since the side planes of the fast-axis collimating cylindrical lens 2 and the slow-axis collimating cylindrical lens 4 in the cylindrical lens group 1 are designed to face outward, in order to ensure the accuracy of the cylindrical lens group 1, it is necessary to ensure that the side planes of the fast-axis collimating cylindrical lens 2 and the slow-axis collimating cylindrical lens 4 are parallel, and it is also necessary to ensure that the upper end surface of the slow-axis collimating cylindrical lens 4 facing away from the base 10 is parallel to the upper end surface of the fast-axis collimating cylindrical lens 2 facing away from the base 10. In the adjustment device 100 of the present application, a first detection mechanism 30 is provided to detect whether the side plane of the slow axis collimating cylinder 4 is parallel to the side plane of the fast axis collimating cylinder 2; a second detection mechanism 40 is provided to detect whether the upper end surface of the slow axis collimating cylinder 4 facing away from the base 10 is parallel to the upper end surface of the fast axis collimating cylinder 2 facing away from the base 10; and a distance measuring mechanism 50 is provided at the same time to detect the horizontal distance between the side plane of the slow axis collimating cylinder 4 and the side plane of the fast axis collimating cylinder 2, so that the distance between the side plane of the slow axis collimating cylinder 4 and the side plane of the fast axis collimating cylinder 2 in the cylinder group 1 meets the use requirements.

[0027] During the adjustment process, the relative position between the fast-axis collimating cylinder 2 and the slow-axis collimating cylinder 4 is adjusted by the first adjustment platform 23 until the first detection mechanism 30 detects that the side plane of the slow-axis collimating cylinder 4 is parallel to the side plane of the fast-axis collimating cylinder 2, the second detection mechanism 40 detects that the upper end surface of the slow-axis collimating cylinder 4 facing away from the base 10 is parallel to the upper end surface of the fast-axis collimating cylinder 2 facing away from the base 10, and the horizontal distance between the side plane of the slow-axis collimating cylinder 4 and the side plane of the fast-axis collimating cylinder 2 measured by the distance measuring mechanism 50 meets the preset requirements.

[0028] Please continue reading Figure 1 The first detection mechanism 30 includes a first laser collimator 31, a first steering prism 32, a second laser collimator 33 and a second steering prism 34, wherein the first laser collimator 31 is arranged above the first support 21 at intervals, and the light emitted by the first laser collimator 31 is directed to the base 10; the first steering prism 32 is arranged directly below the first laser collimator 31 and has the same height as the supported member on the first support 21, and the first steering prism 32 is used to change the direction of the light emitted by the first laser collimator 31, so that the first laser collimator 31 is directed to the base 10. The light emitted by the collimator 31 is directed to the supported member on the first support member 21; the second laser collimator 33 is arranged above the second support member 22 at an interval, and the light emitted by the second laser collimator 33 is directed to the base 10; the second steering prism 34 is arranged directly below the second laser collimator 33 and at the same height as the supported member on the second support member 22, and the second steering prism 34 is used to change the direction of the light emitted by the second laser collimator 33 so that the light emitted by the second laser collimator 33 is directed to the supported member on the second support member 22.

[0029] Specifically, the first laser collimator 31 is arranged above the first support 21 at intervals, and the second laser collimator 33 is arranged above the second support 22 at intervals, and the light emitted by the first laser collimator 31 and the second laser collimator 33 are both directed to the base 10; the first steering prism 32 is used to receive the light emitted by the first laser collimator 31 and change its direction, so that the light emitted by the first laser collimator 31 is directed to the side plane of the supported member on the first support 21, that is, the side plane of the fast axis collimator 2. Similarly, the second steering prism 34 is used to receive the light emitted by the second laser collimator 33 and change its direction, so that the light emitted by the second laser collimator 33 is directed to the side plane of the supported member on the second support 22, that is, the side plane of the slow axis collimator 4. When the image point formed by the first laser collimator 31 on the fast axis collimator 2 is consistent with the image point formed by the second laser collimator 33 on the slow axis collimator 4, it means that the side plane of the fast axis collimator 2 is parallel to the side plane of the slow axis collimator 4, that is, the side planes of the two are parallel. The design of the first detection mechanism 30 facilitates the judgment of whether the side plane of the fast axis collimator 2 is parallel to the side plane of the slow axis collimator 4. In the process of measurement and alignment using the first laser collimator 31, after the laser beam passes through the fast axis collimator 2 or the slow axis collimator 4, a specific image point will be formed at the receiving end. The formation and characteristics of this image point are closely related to the working principle of the first laser collimator 31 or the second laser collimator 33 and the optical characteristics of the fast axis collimator 2 or the slow axis collimator 4.

[0030] Please continue reading Figure 1 The adjustment device 100 also includes a mounting bracket 43, a first collimator adjustment platform 36 and a second collimator adjustment platform 37; wherein the mounting bracket 43 is erected on the base 10; the first laser collimator 31 is mounted on the mounting bracket 43 through the first collimator adjustment platform 36, and the first collimator adjustment platform 36 is used to adjust the light emitting direction of the first laser collimator 31; the second laser collimator 33 is mounted on the mounting bracket 43 through the second collimator adjustment platform 37, and the second collimator adjustment platform 37 is used to adjust the light emitting direction of the second laser collimator 33.

[0031] Specifically, the mounting bracket 43 is erected on the base 10 to facilitate the installation and use of other structures. The first collimator adjustment platform 36 is mounted on the mounting bracket 43 and connected to the first laser collimator 31 to fix the first laser collimator 31. It can also be used to adjust the light emitting direction of the first laser collimator 31, which can be used to achieve the image point formed on the fast axis collimator 2 to be zeroed or set to a set value. The second collimator adjustment platform 37 is mounted on the mounting bracket 43 and connected to the second laser collimator 33 to fix the second laser collimator 33. It can also be used to adjust the light emitting direction of the second laser collimator 33, which can be used to achieve the image point formed on the slow axis collimator 4 to be zeroed or set to a set value.

[0032] Please continue reading Figure 1 and Figure 3 The adjustment device 100 also includes a connecting block 35, a first collimator adjustment platform 36 is located on one side of the connecting block 35, and a second collimator adjustment platform 37, a first laser collimator 31, and a second laser collimator 33 are located on the other side of the connecting block 35. The connecting block 35 is connected to the first collimator adjustment platform 36, the first laser collimator 31, and the second collimator adjustment platform 37 at the same time.

[0033] Specifically, since the first collimator adjustment platform 36 is located on one side of the connecting block 35, the first laser collimator 31 and the second laser collimator 33 can be adjusted simultaneously by adjusting the first collimator adjustment platform 36. When adjusting the cylindrical lens group 1, the first laser collimator 31 is adjusted using the first collimator adjustment platform 36 according to the position of the fast-axis collimator cylindrical lens 2, so that the image point formed by the light of the first laser collimator 31 on the fast-axis collimator cylindrical lens 2 is reset to zero or a set value. At this time, the second laser collimator 33 is adjusted synchronously to improve the adjustment accuracy and facilitate the subsequent adjustment of the second laser collimator 33. During the adjustment process, first adjust the first collimator adjustment stage 36 so that the outgoing light beams of the first laser collimator 31 and the second laser collimator 33 are perpendicular to the side plane of the fast-axis collimator cylindrical lens 2, and then adjust the position of the slow-axis collimator cylindrical lens 4 so that the image point of the second laser collimator 33 thereon reaches the zero position. At this time, the side plane of the slow-axis collimator cylindrical lens 4 is parallel to the side plane of the fast-axis collimator cylindrical lens 2.

[0034] Please continue reading Figure 1 The adjustment device 100 also includes a first prism adjustment platform 38 and a second prism adjustment platform 39; wherein the first steering prism 32 is mounted on the mounting bracket 43 through the first prism adjustment platform 38, and the first prism adjustment platform 38 is used to adjust the angle of the first steering prism 32; the second steering prism 34 is mounted on the mounting bracket 43 through the second prism adjustment platform 39, and the second prism adjustment platform 39 is used to adjust the angle of the second steering prism 34.

[0035] Specifically, the light emitted by the first laser collimator 31 irradiates the first steering prism 32 to form an image point, and the angle of the first steering prism 32 is adjusted by the first prism adjustment platform 38 so that the image point reaches the zero position or the set value, and the adjustment of the first steering prism 32 is completed. The light emitted by the second laser collimator 33 irradiates the second steering prism 34 to form an image point, and the angle of the second steering prism 34 is adjusted by the second prism adjustment platform 39 so that the image point reaches the zero position or the set value, and the adjustment of the second steering prism 34 is completed.

[0036] Please continue reading Figure 1 The second detection mechanism 40 includes a third laser collimator 41 and an oblique beam splitter prism 42, wherein the third laser collimator 41 is arranged above the interval between the first support member 21 and the second support member 22, and the light emitted by the third laser collimator 41 is directed toward the base 10; the oblique beam splitter prism 42 is arranged below the third laser collimator 41, and is used to split the light emitted by the third laser collimator 41 into a parallel first light beam and a parallel second light beam, the first light beam is directed toward the first support member 21, and the second light beam is directed toward the second support member 22.

[0037] Specifically, the third laser collimator 41 can be arranged above the interval between the first support member 21 and the second support member 22, or arranged directly above one of the first support member 21 and the second support member 22. The third laser collimator 41 and the oblique beam splitter prism 42 are used in combination. The oblique beam splitter prism 42 is located directly below the third laser collimator 41 and is used to split its light into a plurality of parallel light beams, wherein the first light beam is directed toward the first support member 21, i.e., toward the upper end face of the fast axis collimating cylindrical lens 2, and the second light beam is directed toward the second support member 22, i.e., toward the upper end face of the slow axis collimating cylindrical lens 4. At this time, it will be reflected back to form two image points. If the two image points overlap, it means that the upper end faces of the fast axis collimating cylindrical lens 2 and the slow axis collimating cylindrical lens 4 are parallel.

[0038] Please continue reading Figure 1 The adjustment device 100 also includes a mounting bracket 43 and a third collimator adjustment platform 44; wherein the mounting bracket 43 is erected on the base 10; the third laser collimator 41 is mounted on the mounting bracket 43 through the third collimator adjustment platform 44, and the third collimator adjustment platform 44 is used to adjust the light output direction of the third laser collimator 41.

[0039] Specifically, the light emitted by the third laser collimator 41 irradiates the upper end surface of the fast axis collimator 2 to form an image point. The angle of the third laser collimator 41 is adjusted by the third collimator adjustment platform 44 so that the image point reaches the zero position or the set value, thereby completing the adjustment of the third laser collimator 41.

[0040] Please continue reading Figure 1The distance measuring mechanism 50 includes a first spectral confocal displacement sensor 51 and a second spectral confocal displacement sensor 52; wherein, the first spectral confocal displacement sensor 51 is arranged on the side of the first support member 21 away from the second support member 22; the second spectral confocal displacement sensor 52 is arranged on the side of the second support member 22 away from the first support member 21, and the first spectral confocal displacement sensor 51 and the second spectral confocal displacement sensor 52 are coaxially arranged to measure the horizontal distance between the slow-axis collimating cylinder 4 and the fast-axis collimating cylinder 2.

[0041] Please continue reading Figure 1 , Figure 4 and Figure 5 In the distance measuring mechanism 50, the first spectral confocal displacement sensor 51 and the second spectral confocal displacement sensor 52 are respectively located on both sides of the column lens group 1. The first spectral confocal displacement sensor 51 can measure the distance between it and the fast-axis collimating column lens 2, and the second spectral confocal displacement sensor 52 can measure the distance between it and the slow-axis collimating column lens 4.

[0042] The specific measurement process is as follows:

[0043] First, a standard block 7 with a length of S0 is used for zeroing. S0 is known. The first distance a0 between the first spectral confocal displacement sensor 51 and one side of the standard block 7 can be measured, and the second distance b0 between the second spectral confocal displacement sensor 52 and the other side of the standard block 7 can be measured. The total distance L between the first spectral confocal displacement sensor 51 and the second spectral confocal displacement sensor 52 is calculated as: L=a0+b0+S0.

[0044] Then, under the premise of keeping the distance between the first spectral confocal displacement sensor 51 and the second spectral confocal displacement sensor 52 unchanged, the standard block 7 is removed and the cylindrical lens group 1 is placed. The third distance a1 between the first spectral confocal displacement sensor 51 and the fast-axis collimating cylindrical lens 2 can be measured, and the fourth distance b1 between the second spectral confocal displacement sensor 52 and the slow-axis collimating cylindrical lens 4 can be measured. At this time, the length of the cylindrical lens group 1, that is, the horizontal distance S1 between the slow-axis collimating cylindrical lens 4 and the fast-axis collimating cylindrical lens 2, is calculated as follows: S1=L-a1-b1.

[0045] Please continue reading Figure 1The adjustment device 100 further includes a displacement detection mechanism 60, which is used to measure the displacement of the first adjustment stage 23 in the first direction X and the displacement of the first adjustment stage 23 in the second direction Y, wherein the first direction X and the second direction Y are both parallel to the base 10, and the first direction X is perpendicular to the second direction Y. Specifically, the displacement of the slow-axis collimating cylindrical lens 4 in the first direction X and the second direction Y is obtained by the displacement detection mechanism 60, so as to ensure that the misalignment between the slow-axis collimating cylindrical lens 4 and the fast-axis collimating cylindrical lens 2 does not affect the subsequent assembly, and at the same time, it is convenient to determine whether the cylindrical lens group 1 meets the use requirements.

[0046] Please continue reading Figure 1 The displacement detection mechanism 60 includes a first laser rangefinder 61 and a second laser rangefinder 62; wherein the first laser rangefinder 61 is used to measure the displacement of the first adjustment platform 23 in the first direction X; and the second laser rangefinder 62 is used to measure the displacement of the first adjustment platform 23 in the second direction Y. The first laser rangefinder 61 and the second laser rangefinder 62 are used to measure the displacement of the first adjustment platform 23 in the first direction X and the second direction Y, respectively, to ensure that the misalignment between the slow-axis collimating cylindrical lens 4 and the fast-axis collimating cylindrical lens 2 does not affect the subsequent assembly.

[0047] In one embodiment, the first adjustment platform 23 is a six-axis adjustment platform, which facilitates flexible adjustment of the second support member 22 .

[0048] The following describes the process of using the adjustment device 100 to perform adjustment:

[0049] See also Figure 6 First, the zeroing steps of the adjustment device 100 are introduced:

[0050] S10: Adjust the positions of the first laser collimator and the first steering prism.

[0051] like Figure 7 As shown, the relative positions of the first laser collimator 31 and the first steering prism 32 are first adjusted using a standard cube reflector 6 (which can be integrated with the standard block 7 with a length of S0 mentioned above). Specifically, after the laser beam emitted from the first laser collimator 31 is irradiated on the first steering prism 32 and the standard cube reflector 6, an image point is formed on the surface of the first steering prism 32 and the side of the standard cube reflector 6 respectively. The first collimator adjustment stage 36 and the first prism adjustment stage 38 are adjusted to return the two image points to zero. At this time, the beam of the first laser collimator 31 and the reflection surfaces of the first steering prism 32 and the standard cube reflector 6 are adjusted to be vertical. After the adjustment is completed, the standard cube reflector 6 is removed.

[0052] S20: Adjust the position of the second turning prism.

[0053] like Figure 8As shown, the light emitted by the first laser collimator 31 is irradiated to the second steering prism 34 through the first steering prism 32, and the second prism adjustment platform 39 is adjusted to make the image point of the first laser collimator 31 on the second steering prism 34 reach the zero position, thereby completing the adjustment of the position of the second steering prism 34.

[0054] S30: Adjust the position of the second laser collimator.

[0055] like Fig. 9 As shown, the second laser collimator 33 is adjusted, the light emitted by the second laser collimator 33 is irradiated to the second steering prism 34, and the second collimator adjustment platform 37 is adjusted to make the image point of the second laser collimator 33 on the second steering prism 34 reach the zero position, thereby completing the adjustment of the second laser collimator 33.

[0056] See also Fig.10 After the adjustment device 100 is reset to zero, the cylindrical lens group 1 is placed in the adjustment device 100 and the cylindrical lens group 1 is adjusted. The specific steps are as follows:

[0057] S110: Preparation of cylindrical lens group.

[0058] Please continue reading Figure 2 , place the fast-axis collimating cylindrical lens 2 into the fast-axis collimating cylindrical lens mounting seat 3 and fix it with glue, and place the slow-axis collimating cylindrical lens 4 into the slow-axis collimating cylindrical lens mounting seat 5 and fix it with glue.

[0059] S120: Put the cylindrical lens group into the adjustment device.

[0060] Specifically, Fig.11 As shown, the fast-axis collimating cylindrical lens mounting seat 3 is placed on the first supporting member 21 , the slow-axis collimating cylindrical lens mounting seat 5 is placed on the second supporting member 22 , and the cylindrical lens group 1 is placed in the adjusting device 100 .

[0061] S130: Returning the image points of the first laser collimator and the third laser collimator on the fast axis collimating cylindrical lens to zero.

[0062] Please continue reading Fig.11 and Fig.12 Specifically, by adjusting the first collimator adjustment stage 36 and the third collimator adjustment stage 44, the image points of the first laser collimator 31 and the third laser collimator 41 on the fast axis collimating cylindrical lens 2 are reset to zero.

[0063] S140: Adjust the six-axis adjustment stage to return the image points of the second laser collimator and the third laser collimator on the slow-axis collimating cylindrical lens to zero.

[0064] By adjusting the six-axis adjustment table, the position of the slow-axis collimator 4 is adjusted. In one embodiment, the position of the fast-axis collimator 2 is fixed. At this time, the first laser collimator 31 and the third laser collimator 41 have been adjusted according to the position of the fast-axis collimator 2, and the first collimator adjustment table 36 synchronously adjusts the first laser collimator 31 and the second laser collimator 33. At this time, the positions of the second laser collimator 33 and the third laser collimator 41 are calibrated according to the position of the fast-axis collimator 2. Therefore, the position of the slow-axis collimator 4 is adjusted by the six-axis adjustment table. When the image points of the second laser collimator 33 and the third laser collimator 41 on the slow-axis collimator 4 return to zero, the adjustment of the slow-axis collimator 4 is completed.

[0065] S150: adjusting the six-axis adjustment stage in a third direction so that the distance between the side plane of the slow axis collimating cylinder and the side plane of the fast axis collimating cylinder meets the requirement. The third direction is the same as the arrangement direction of the fast axis collimating cylinder and the slow axis collimating cylinder.

[0066] The six-axis adjustment stage is adjusted in the third direction Z so that the plane of the slow-axis collimating cylindrical lens 4 reaches a theoretical distance from the plane of the fast-axis collimating cylindrical lens 2 .

[0067] S160: Adjust the six-axis adjustment stage in the first direction and the second direction to reduce the misalignment between the slow-axis collimating cylindrical lens and the fast-axis collimating cylindrical lens.

[0068] According to the displacement of the first adjustment platform 23 in the first direction X measured by the first laser rangefinder 61, the displacement of the first adjustment platform 23 in the second direction Y measured by the second laser rangefinder 62, the six-axis adjustment platform is adjusted in the first direction X and the second direction Y, so that the misalignment amount of the slow-axis collimating cylindrical lens mounting seat 5 and the fast-axis collimating cylindrical lens mounting seat 3 in the plane formed by the first direction X and the second direction Y is within the use range.

[0069] S170: Fix the slow-axis collimating cylindrical lens mounting seat and the fast-axis collimating cylindrical lens mounting seat to fix the cylindrical lens group.

[0070] The glue is dispensed and cured at the gap between the slow-axis collimating cylindrical lens mounting seat 5 and the fast-axis collimating cylindrical lens mounting seat 3 to fix the cylindrical lens group 1 .

[0071] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A regulating device, characterized in that: The adjusting device is used to adjust the relative position of the slow-axis collimating cylindrical lens and the fast-axis collimating cylindrical lens in the cylindrical lens group, and the adjusting device comprises: Pedestal; A first support member and a second support member are arranged on the base at intervals, the first support member is used to support one of the slow axis collimating cylindrical lens and the fast axis collimating cylindrical lens, and the second support member is used to support the other of the slow axis collimating cylindrical lens and the fast axis collimating cylindrical lens; a first adjustment platform, at least one of the first support member and the second support member is installed on the base through the first adjustment platform, and the first adjustment platform is used to adjust the relative positions of the first support member and the second support member; A first detection mechanism, used to detect whether the side plane of the slow-axis collimating cylindrical lens is parallel to the side plane of the fast-axis collimating cylindrical lens; A second detection mechanism is used to detect whether the upper end surface of the slow axis collimating cylindrical lens away from the base is parallel to the upper end surface of the fast axis collimating cylindrical lens away from the base; A distance measuring mechanism, used for detecting a horizontal distance between a side plane of the slow-axis collimating cylindrical lens and a side plane of the fast-axis collimating cylindrical lens; Wherein, the first detection mechanism comprises: A first laser collimator is arranged above the first support member at an interval, and the light emitted by the first laser collimator is directed toward the base; a first steering prism, which is arranged directly below the first laser collimator and has the same height as the supported component on the first support component, and is used to change the direction of the light emitted by the first laser collimator so that the light emitted by the first laser collimator is directed to the supported component on the first support component; A second laser collimator is arranged above the second support member at an interval, and the light emitted by the second laser collimator is directed toward the base; a second steering prism, disposed directly below the second laser collimator and at the same height as the supported member on the second support member, the second steering prism being used to change the direction of the light emitted by the second laser collimator so that the light emitted by the second laser collimator is directed toward the supported member on the second support member; The second detection mechanism comprises: A third laser collimator is arranged above the interval between the first support member and the second support member, and the light emitted by the third laser collimator is directed toward the base; The oblique beam splitter prism is arranged below the third laser collimator and is used to split the light emitted by the third laser collimator into a parallel first beam and a parallel second beam, wherein the first beam points to the first support member and the second beam points to the second support member.

2. The adjusting device according to claim 1, characterized in that: The adjusting device also includes: A mounting bracket erected on the base; a first collimator adjustment platform, through which the first laser collimator is mounted on the mounting bracket, and the first collimator adjustment platform is used to adjust the light emitting direction of the first laser collimator; The second collimator adjustment platform is used for adjusting the light emitting direction of the second laser collimator. The second laser collimator is installed on the mounting bracket through the second collimator adjustment platform.

3. The adjusting device according to claim 2, characterized in that: The adjusting device also includes: A connecting block, wherein the first collimator adjustment platform is located on one side of the connecting block, the second collimator adjustment platform, the first laser collimator, and the second laser collimator are located on the other side of the connecting block, and the connecting block is simultaneously connected to the first collimator adjustment platform, the first laser collimator, and the second collimator adjustment platform.

4. The adjusting device according to claim 2, characterized in that: The adjusting device also includes: a first prism adjustment platform, through which the first steering prism is mounted on the mounting bracket, and the first prism adjustment platform is used to adjust the angle of the first steering prism; A second prism adjustment platform, through which the second steering prism is mounted on the mounting bracket, and the second prism adjustment platform is used to adjust the angle of the second steering prism.

5. The adjusting device according to claim 1, characterized in that: The adjusting device also includes: A mounting bracket erected on the base; A third collimator adjustment platform, through which the third laser collimator is mounted on the mounting bracket, and the third collimator adjustment platform is used to adjust the light emitting direction of the third laser collimator.

6. The adjusting device according to claim 1, characterized in that: The distance measuring mechanism comprises: A first spectral confocal displacement sensor is arranged on a side of the first supporting member away from the second supporting member; A second spectral confocal displacement sensor is arranged on the side of the second support member away from the first support member. The first spectral confocal displacement sensor and the second spectral confocal displacement sensor are coaxially arranged to measure the horizontal distance between the slow-axis collimating cylinder and the fast-axis collimating cylinder.

7. The adjusting device according to claim 1, characterized in that: The adjusting device also includes: The displacement detection mechanism is used to measure the displacement of the first adjustment platform in a first direction and to measure the displacement of the first adjustment platform in a second direction, wherein the first direction and the second direction are both parallel to the base, and the first direction is perpendicular to the second direction.

8. The adjusting device according to claim 7, characterized in that: The displacement detection mechanism comprises: a first laser rangefinder, used for measuring the displacement of the first adjustment platform in the first direction; The second laser rangefinder is used to measure the displacement of the first adjustment platform in the second direction.

9. The adjusting device according to claim 1, characterized in that: The first adjustment platform is a six-axis adjustment platform.

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