Light spot display method and device

Abstract

The invention relates to the technical field of testing and measuring, and discloses a light spot display method applied to a measuring device. The measuring device comprises a first light path and a second light path which are used for measuring the sample to be measured through the first detection light and the second detection light respectively, and a light intensity adjusting device arranged on the first light path. And acquiring an operation mode of the measuring device, and when the function of the operation mode comprises synchronously displaying the position of the first detection light in the image of the second detection light, controlling the light intensity adjusting device to attenuate the light intensity of the first detection light in the first light path. In the measurement process, the light intensity of the first detection light is attenuated through the light intensity adjusting device, so that the light intensity of the first detection light is close to the light intensity of the second detection light, synchronous display of the position of the first detection light with the high light intensity in an image of the second detection light is achieved, and then laser spots are displayed while magnetic domain microscopic imaging is achieved. And the test accuracy is improved. The invention further discloses a light spot display device.

Description

Technical Field

[0001] The present application relates to the field of testing and measuring technology, for example, to a light spot display method and device. Background Art

[0002] The magneto-optical Kerr microscope is a detection instrument that uses the magneto-optical Kerr effect to measure magnetism. It is widely used in semiconductor material detection and scientific research. The magneto-optical Kerr microscope can form a light spot on the object to be measured and image the light spot area to obtain the corresponding magnetic domain image, so as to intuitively detect the magnetism of the object to be measured; it can also irradiate the laser on the object to be measured to detect the hysteresis loop at the laser irradiation position to perform more accurate quantitative detection of the object to be measured. In actual use, after obtaining the magnetic domain image, it may be necessary to further quantitatively measure part of the area of ​​interest of the magnetic domain image. At this time, it is necessary to accurately align the light used to detect the area of ​​interest with the position of interest; and the resolution of the magnetic domain image is about a few hundred nanometers, and the adjustment of the laser irradiation position is somewhat difficult. Therefore, how to adjust the laser irradiation position more accurately has become a problem that needs to be solved urgently.

[0003] In actual sample measurement, when the relevant technology is used to perform microscopic imaging of the sample, the laser spot cannot be displayed at the same time as the microscopic imaging because the laser light intensity far exceeds the illumination intensity of the magnetic domain microscopic imaging. Therefore, the relevant technology uses different exposure times to display the laser spot and microscopic imaging respectively, so as to obtain information on the irradiation position of the laser spot.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art: The related technology uses different exposure times to display the laser spot and magnetic domain microscopic imaging respectively. It is necessary to perform magnetic domain microscopic imaging and laser spot imaging at two different time points respectively. There may be a short time difference between the moment when the magnetic domain microscopic imaging is completed and the actual irradiation position of the laser spot, which will cause deviations in the precise alignment of the magnetic domain microscopic imaging and the laser spot, and then accumulate into errors during the measurement process, affecting the accuracy of the final measurement results.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiment provides a method and device for displaying a light spot, so as to realize the synchronous display of the position of the detection light with stronger light intensity on the characteristic image when two detection lights with large light intensity difference are used to measure different magnetic characteristics of the sample to be measured. Thus, in the process of measuring the sample to be measured by using the magnetic measurement device, the laser light spot is displayed while the magnetic domain microscopic imaging is realized, thereby improving the accuracy of the measurement result.

[0008] In some embodiments, a light spot display method is applied to a measuring device, which includes a first light path and a second light path for measuring a sample to be measured through a first detection light and a second detection light, respectively, and a light intensity adjustment device arranged on the first light path; the method includes: obtaining an operating mode of the measuring device; when the function of the operating mode includes a synchronous display function, controlling the light intensity adjustment device to attenuate the light intensity of the first detection light in the first light path; wherein the synchronous display function includes synchronously displaying the position of the first detection light in the image of the second detection light.

[0009] Optionally, the light intensity adjustment device includes a filter element for attenuating the intensity of the first detection light; controlling the light intensity adjustment device to attenuate the intensity of the first detection light in the first optical path includes: controlling the light intensity adjustment device to move the filter element so that the first detection light passes through the filter element.

[0010] Optionally, the light intensity adjustment device also includes a slide groove, a slider with a positioning groove and a positioning element, wherein a light-transmitting hole is arranged on the slider, and the filter element is arranged at the light-transmitting hole; controlling the light intensity adjustment device to move the filter element includes: determining a target positioning groove corresponding to a synchronous display function; controlling the slider to slide in the slide groove until the positioning element slides into the target positioning groove; wherein, when the positioning element slides into the target positioning groove, the first detection light passes through the filter element.

[0011] Optionally, the positioning element is a spring ball head plunger; whether the positioning element slides into the target positioning slot is determined by the following method: the target vibration number and / or target sound number required for the positioning element to reach the target positioning slot from the initial positioning slot currently slid into is obtained; based on the target vibration number and / or target sound number, whether the positioning element slides into the target positioning slot is determined.

[0012] Optionally, judging whether the positioning element has slid into the target positioning slot is based on the target vibration number and / or the target sound number, including: when the slider starts to slide, detecting the positioning vibration number and / or the positioning sound number; when the positioning vibration number reaches the target vibration number and / or the positioning sound number reaches the target sound number, determining that the positioning element has slid into the target positioning slot.

[0013] Optionally, the target vibration number and / or target sound number required for the positioning element to reach the target positioning slot from the initial positioning slot currently slid into is obtained, including: obtaining the number n of positioning slots spaced between the initial positioning slot and the target positioning slot; and determining the target vibration number and / or target sound number to be n+1.

[0014] Optionally, the light intensity adjustment device includes a light-transmitting window; after acquiring the operating mode of the measuring device, it also includes: when the function of the operating mode includes the function of measuring the first feature, controlling the light intensity adjustment device to allow the first detection light to directly pass through the light-transmitting window.

[0015] Optionally, after acquiring the operating mode of the measuring device, it also includes: when the function of the operating mode does not include the function of synchronously displaying the position of the first detection light in the image of the second feature, controlling the light intensity adjustment device to block the first detection light so that the first detection light is not emitted to the sample to be measured.

[0016] Optionally, the light spot display method further includes: after starting the synchronous display function, adjusting the position of the first detection light in the image of the second detection light to a target position.

[0017] In some embodiments, the light spot display device includes: a processor and a memory storing program instructions, and the processor is configured to execute the light spot display method when executing the program instructions.

[0018] In some embodiments, the magnetic measuring device includes: a magnetic measuring device body, including a first optical path and a second optical path for measuring a sample to be measured through a first detection light and a second detection light respectively, and a light intensity adjustment device arranged on the first optical path; and the above-mentioned light spot display device is installed on the magnetic measuring device body.

[0019] The light spot display method and device, and magnetic measurement device provided by the embodiments of the present disclosure can achieve the following technical effects: The magnetic measuring device includes a first optical path and a second optical path for measuring the sample to be measured through the first detection light and the second detection light respectively, and a light intensity regulating device arranged on the first optical path. The operating mode of the measuring device is obtained, and when the function of the operating mode includes synchronously displaying the position of the first detection light in the image of the second detection light, the light intensity regulating device is controlled to attenuate the light intensity of the first detection light in the first optical path. During the measurement process, the light intensity of the first detection light is attenuated by the light intensity regulating device, so that the light intensity of the first detection light is close to the light intensity of the second detection light in the second optical path, and then when the magnetic characteristics of the sample to be measured are measured by using the first detection light and the second detection light with a large difference in light intensity, the position of the first detection light with a stronger light intensity can be synchronously displayed in the image of the second detection light. Therefore, in the process of measuring the sample to be measured by using the magnetic measuring device, the laser spot can be displayed while the magnetic domain microscopic imaging is realized, thereby improving the accuracy of the measurement result.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein: Figure 1 is a schematic diagram of the overall structure of a magnetic measurement device provided by an embodiment of the present disclosure; Figure 2 is a structural schematic diagram of a light intensity adjustment device provided by an embodiment of the present disclosure; Figure 3 is a structural schematic diagram of another light intensity adjustment device provided by an embodiment of the present disclosure; Figure 4 is a structural schematic diagram of another light intensity adjustment device provided by an embodiment of the present disclosure; Figure 5 is a structural schematic diagram of a light intensity adjustment device in use provided by an embodiment of the present disclosure; Figure 6 is a structural schematic diagram of another light intensity adjustment device in use provided by an embodiment of the present disclosure; Figure 7 is a structural schematic diagram of another light intensity adjustment device in use provided by an embodiment of the present disclosure; Figure 8 is a schematic diagram of a light spot display method provided by an embodiment of the present disclosure; Fig. 9 is a schematic diagram of another light spot display method provided by an embodiment of the present disclosure; Fig.10is a schematic diagram of another light spot display method provided by an embodiment of the present disclosure; Fig.11 It is a schematic diagram of a light spot display device provided in an embodiment of the present disclosure.

[0022] Reference numerals: 900: measuring device; 901: first light source; 902: beam reducer; 903: light intensity adjustment device; 904: second light source; 905: first beam splitter; 906: second beam splitter; 907: objective lens; 908: polarizer; 909: analyzer; 910: imaging device; 911: sample to be measured; 10: slide slot; 11: light transmission window; 20: slider; 21: positioning slot; 22: filter element; 23: light transmission hole; 24: screw hole; 25: screw; 30: positioning element; 31: pull rod; 32: base; 33: first mounting hole; 34: through hole; 35: second mounting hole; 36: mounting seat; 37: third mounting hole; 40: laser spot position; 800: light spot display device; 801: processor; 802: memory; 803: communication interface; 804: bus. DETAILED DESCRIPTION

[0023] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0025] In practical applications, the measuring device 900 (such as a magneto-optical Kerr microscope) can use a laser light source to perform further quantitative measurements on a partial area of ​​interest of the magnetic domain image. Therefore, the light intensity adjustment device disclosed in the present application will be described below using a laser beam as the light for detecting the area of ​​interest of the magnetic domain image. It should be noted that the first feature and the second feature described below can both be any different magnetic features of the sample 911 to be tested. The first feature and the second feature can be the same or different. For example, the first feature can be the hysteresis loop of the sample 911 to be tested, and the second feature can be the magnetic domain of the sample 911 to be tested. For the convenience of explanation, the light intensity adjustment device 903 disclosed in the present application will be described below using the hysteresis loop as the first feature and the magnetic domain as the second feature.

[0026] Combination Figures 1 to 7 As shown, the embodiment of the present disclosure discloses a measuring device 900, including a first optical path for measuring a first characteristic of a sample to be measured 911, a light intensity adjustment device 903 arranged on the first optical path, and a second optical path for measuring a second characteristic of the sample to be measured 911. The first optical path includes a first light source 901, and the first detection light emitted by the first light source 901 sequentially passes through the light intensity adjustment device 903, the first beam splitter 905, the polarizer 908, the second beam splitter 906, and the objective lens 907 to reach the sample to be measured 911. After being reflected by the sample to be measured 911, the reflected first detection light sequentially passes through the objective lens 907, the second beam splitter 906, and the analyzer 909 to reach the imaging device 910. The second optical path includes a second light source 904. The second detection light emitted by the second light source 904 passes through the first beam splitter 905, the polarizer 908, the second beam splitter 906 and the objective lens 907 in sequence and reaches the sample to be tested 911. After being reflected by the sample to be tested 911, the reflected second detection light passes through the objective lens 907, the second beam splitter 906 and the analyzer 909 in sequence and reaches the imaging device 910.

[0027] In the embodiment of the present disclosure, there is no limitation on the type of objective lens 907. Objective lens 907 may be any optical element or a combination of optical elements, as long as it can converge the first detection light of the first optical path and / or the second detection light of the second optical path onto the sample to be tested 911. For example, objective lens 907 may be a lens or a lens group.

[0028] Optionally, a beam reducer 902 and / or a collimator may be provided between the first light source 901 and the light intensity adjustment device 903 to make the first detection light emitted by the first light source 901 more concentrated.

[0029] In the disclosed embodiment, the intensity of the first detection light is much greater than the intensity of the second detection light. For example, the first light source 901 may be an argon ion laser, a solid-state laser or other laser light sources, and the second light source 904 may be a light emitting diode, a low-power laser diode or a low-power fiber light source.

[0030] Optionally, combined Figures 2 to 7As shown, the light intensity adjustment device 903 includes a slide 10, a slider 20, a positioning assembly and a pull rod 31. The slide 10 is provided with a light-transmitting window 11; the slider 20 is used in conjunction with the slide 10, and includes a positioning groove 21 and a light-transmitting hole 23 provided with a filter element 22; wherein the light-transmitting hole 23 passes through the side close to the light-transmitting window 11 and the side away from the light-transmitting window 11, so that light can pass through the slide 20; the filter element 22 is arranged in the light-transmitting hole 23, and is used to attenuate the light intensity of the first detection light; the positioning assembly includes a positioning element 30 used in conjunction with the positioning groove 21, and is used to position the slider 20; the pull rod 31 is connected to the slider 20; wherein, by pulling the pull rod 31, the slider 20 can slide in the slide 10, so that the first detection light passes through the filter element 22 and the light-transmitting hole 23.

[0031] In the embodiment of the present disclosure, the slider can be driven to slide in the slide groove by pulling the pull rod by any mechanical device (such as a connecting rod mechanism or a gear rack mechanism, etc.), or the slider can be driven to slide in the slide groove by pulling the pull rod by the user. The pull rod 31 can be of any structural form, such as a cylinder or an L-shaped structure. Anti-slip textures can be provided on the pull rod 31 to increase the friction between the user or the structure used to pull the pull rod 31 and the pull rod 31, thereby reducing relative sliding. The slide groove 10 can also be of any structural form, such as a hollow rectangular parallelepiped, a hollow cube or a hollow cylinder, etc., as long as the slider 20 can slide in the slide groove 10. Combined with Figure 2 As shown, the chute 10 is a hollow cuboid-like structure, and the slider 20 can slide in the inner cavity of the hollow cuboid-like structure. The slider 20 is used in conjunction with the chute 10, so the slider 20 can be any structure that can slide in the chute 10, such as a cuboid, a cube, a cylinder, or other structures that match the shape and size of the inner cavity of the chute 10.

[0032] In the embodiment of the present disclosure, a plurality of positioning grooves 21 may be provided on the slider 20, such as a first positioning groove, a second positioning groove and / or a third positioning groove, etc. Each positioning groove 21 may correspond to a different state of the light intensity adjustment device 903, such as the third positioning groove corresponds to the first detection light passing through the light-transmitting hole 23, or the second positioning groove corresponds to the first detection light not passing through the light-transmitting hole 23, etc.

[0033] In the embodiment of the present disclosure, the filter element 22 may be a filter, such as a neutral density filter, an absorption filter, or an interference filter.

[0034] In the embodiment of the present disclosure, the filter element 22 can be fixed on the slider 20 in any manner to cover the light-transmitting hole 23. Figure 3As shown, the filter element 22 can be bonded to the slider 20 by an adhesive to cover the light-transmitting hole 23, and the adhesive includes an ultraviolet curing adhesive or an epoxy resin adhesive, etc.; and / or, the filter element 22 can also be fixed to the slider 20 by mechanical clamping; and / or, the filter can also be directly pressed into the light-transmitting hole 23 by pressure, etc. In this way, only the first detection light that passes through the filter can pass through the light-transmitting hole 23 to irradiate the sample 911 to be tested or the sample rod, thereby attenuating the first detection light. The shape and size of the filter element 22 can be set accordingly according to the fixing method, as long as it can cover the light-transmitting hole 23. For example, when the light-transmitting hole 23 is fixed by an adhesive, the filter element 22 can be any shape and size that can cover the light-transmitting hole 23, such as a circle, square or other shape that is larger than the cross-sectional area of ​​the light-transmitting hole 23; when the filter is pressed into the light-transmitting hole 23 by pressure, the shape and size of the filter element 22 can be consistent with the light-transmitting hole 23, or can be different from the light-transmitting hole 23, as long as it can be stuck in the light-transmitting hole 23, such as one side of the filter element 22 can be stuck in the light-transmitting hole 23 or both sides of the filter element 22 can be stuck in the filter hole, etc.

[0035] In addition, in the embodiment of the present disclosure, the above-mentioned covering of the light-transmitting hole 23 refers to covering the possible irradiation position of the first detection light on the cross section of the light-transmitting hole 23 when the positioning element 30 is inserted into the third positioning groove corresponding to the first detection light passing through the light-transmitting hole 23. That is, the above-mentioned covering of the light-transmitting hole 23 does not require the filter element 22 to cover the entire light-transmitting hole 23, but only requires the filter element 22 to cover the possible irradiation position of the first detection light on the light-transmitting hole 23. The possible irradiation position of the first detection light on the light-transmitting hole 23 includes the center position of the light-transmitting hole 23 or any position within a circular area with a set distance from the center position, etc.

[0036] Thus, the light intensity adjustment device 903 includes a slide groove 10, a slider 20 and a positioning assembly. The slider 20 is used in conjunction with the slide groove 10, and includes a positioning groove 21 and a light-transmitting hole 23 provided with a filter element 22, and the filter element 22 is used to attenuate the light intensity of the first detection light. The positioning assembly includes a pull rod 31 connected to the slider 20 and a positioning element 30 used in conjunction with the positioning groove 21. During the measurement process, by pulling the pull rod 31, the slider 20 can slide in the slide groove 10, so that the first detection light passes through the filter element 22 and the light-transmitting hole 23 on the slider 20, thereby attenuating the light intensity of the first detection light, so that the light intensity of the first detection light is close to the intensity of the illumination of the second characteristic imaging. Furthermore, during the process of the measuring device 900 measuring the sample 911 to be measured, the position of the first detection light with a relatively high light intensity is synchronously displayed on the second characteristic image, that is, the laser spot is displayed while the magnetic domain microscopic imaging is realized, thereby improving the accuracy of the measurement result.

[0037] Optionally, the light-transmitting window 11 is disposed on a side of the slide slot 10 away from the filter element 22 .

[0038] In the disclosed embodiment, the main function of the light-transmitting window 11 is to allow the first detection light to pass through the slide slot 10 and irradiate the sample to be tested 911 or the sample rod. For example, after the first detection light passes through the filter element 22 and the light-transmitting hole 23, it can continue to pass through the slide slot 10 from the light-transmitting window 11, or the first detection light does not pass through the filter element 22, but directly irradiates the sample to be tested or the sample rod from the light-transmitting window 11. Therefore, the shape and size of the light-transmitting window 11 can be set according to demand, such as being determined according to the shape and size of the slider 20, and it only needs to be able to support the slider 20 to slide in the slide slot 10 and allow the first detection light to pass through the light-transmitting window 11. Figure 4 As shown, the length of the light-transmitting window 11 is smaller than the length of the slider 20, so as to support the slider 20 to slide in the slide groove 10, and the light-transmitting window 11 can cover the light-transmitting hole 23. Therefore, the light-transmitting window 11 can cover all possible irradiation positions of the first detection light, so that the first detection light can irradiate the sample 911 to be tested or the sample rod.

[0039] In this way, by setting the light-transmitting window 11, the first detection light can pass through the light-transmitting window 11 to irradiate the sample 911 to be tested after passing through the filter element 22 and the light-transmitting hole 23, or the first detection light can directly pass through the light-transmitting window 11 without passing through the filter element 22 and the light-transmitting hole 23, and irradiate the sample 911 to be tested or the sample rod. In addition, since it is necessary to pull the pull rod 31 to drive the slider 20 to slide in the slide slot 10, if the light-transmitting window 11 is set on the side close to the filter element 22, when the slider 20 slides, the relative movement between the filter element 22 thereon and the slide slot 10 may cause the filter element 22 to wear. Therefore, setting the light-transmitting window 11 on the side of the slide slot 10 away from the filter element 22 can avoid the wear of the filter element 22 caused by the structural part of the slide slot 10 that supports the sliding of the slider 20, thereby extending the service life of the filter element 22.

[0040] Optionally, the positioning assembly further includes a base 32 . The base 32 is connected to the slide slot 10 , and includes a first mounting hole 33 for mounting the positioning element 30 .

[0041] In this way, the base 32 is connected to the slide slot 10, and a first mounting hole 33 for mounting the positioning element 30 is provided on the base 32. By providing the first mounting hole 33 on the base 32, the positioning element 30 can position the slider 20 that slides out of the slide slot 10 at the first mounting hole 33 of the base 32, thereby achieving attenuation of the light intensity of the first detection light.

[0042] Optionally, the base 32 further includes a through hole 34. The through hole 34 is used to pass through the slider 20; wherein the through hole 34 is connected to the first mounting hole 33 near the positioning groove 21, so as to position the slider 20 by the positioning element 30 and the positioning groove 21.

[0043] In the embodiment of the present disclosure, Figure 2 As shown, the shape and size of the through hole 34 can be determined according to the shape of the cross section of the slider 20 in the displacement direction. For example, the shape and size of the through hole 34 can be the same as the cross section of the slider 20 in the displacement direction, so as to play a limiting role when the slider 20 slides; the shape and size of the through hole 34 can also be different from the cross section of the slider 20 in the displacement direction, such as the length of the through hole 34 is different from the length of the cross section of the slider 20 in the displacement direction, and the width of the through hole 34 is the same as the width of the cross section of the slider 20 in the displacement direction, which can also play a limiting role, reducing the displacement of the slider 20 in the non-displacement direction when the slider 20 slides, so as to ensure that the positioning element 30 accurately positions the slider 20.

[0044] In this way, the base 32 also includes a through hole 34 for passing the slider 20, and the through hole 34 is connected to the first mounting hole 33 on the side close to the positioning groove 21, so that the positioning element 30 cooperates with the positioning groove 21 to position the slider 20. By making the through hole 34 close to the positioning groove 21 and connected to the first mounting hole 33, the positioning element 30 installed in the first mounting hole 33 can accurately position the slider 20 passing through the through hole 34 through the positioning groove 21.

[0045] Optionally, the base 32 further includes a second mounting hole 35. The second mounting hole 35 is used to connect the base 32 and the slide slot 10.

[0046] Thus, the base 32 further includes a second mounting hole 35 for connecting the base 32 and the slide 10. By providing the second mounting hole 35, the base 32 and the slide 10 can be more firmly connected, further improving the accuracy of the measurement.

[0047] Optionally, the positioning element 30 is a spring ball plunger.

[0048] In this way, the slider 20 is positioned by the cooperation of the spring ball plunger and the positioning groove 21. When the spring ball plunger slides into the positioning groove 21, there will be an obvious feel and sound of the spring ball plunger sliding into the positioning groove 21, thereby achieving accurate positioning of the slider 20 at different positions.

[0049] Optionally, the pull rod 31 includes a mounting seat 36 . The mounting seat 36 is disposed on a side of the pull rod 31 close to the slider 20 , and includes a third mounting hole 37 for connecting the slider 20 and the pull rod 31 .

[0050] In the embodiment of the present disclosure, Figure 2 As shown, the mounting seat 36 can be of any shape and size, as long as it can pull the slider 20 out of the through hole 34 while connecting the pull rod 31 and the slider 20. For example, the shape and size of the mounting seat 36 can be the same as the cross section of the slider 20 in the displacement direction or the through hole 34, or can be any shape with a size smaller than the cross section of the slider 20 in the displacement direction or the through hole 34.

[0051] In this way, the pull rod 31 includes a mounting seat 36 disposed on a side of the pull rod 31 close to the slider 20, and the mounting seat 36 includes a third mounting hole 37 for connecting the slider 20 and the pull rod 31. By connecting the slider 20 and the pull rod 31 through the third mounting hole 37, the connection structure between the slider 20 and the pull rod 31 can be made more stable, thereby improving the positioning accuracy of the slider 20.

[0052] Optionally, the slider 20 further includes a screw hole 24 . The screw hole 24 is disposed on a side of the slider 20 close to the pull rod 31 , and is used to cooperate with the screw 25 to connect the slider 20 and the pull rod 31 .

[0053] Thus, the slider 20 further includes a screw hole 24 disposed on a side of the slider 20 close to the pull rod 31. The screw hole 24 is used to cooperate with the screw 25 to connect the slider 20 and the pull rod 31. By fixing the slider 20 and the pull rod 31 through the screw hole 24 and the screw 25, the stability of the connection structure between the pull rod 31 and the slider 20 can be improved, thereby improving the positioning accuracy of the slider 20.

[0054] Optionally, the positioning groove 21 includes a first positioning groove and / or a second positioning groove and / or a third positioning groove. The first positioning groove is arranged on the side of the slider 20 close to the pull rod 31; wherein, when the positioning element 30 is inserted into the first positioning groove, the first detection light is blocked by the slider 20; the second positioning groove is arranged on the side of the slider 20 away from the pull rod 31; wherein, when the positioning element 30 is inserted into the second positioning groove, the first detection light does not pass through the filter element 22; the third positioning groove is arranged between the first positioning groove and the second positioning groove; wherein, when the positioning element 30 is inserted into the third positioning groove, the first detection light passes through the filter element 22.

[0055] In this way, the first positioning groove is arranged on the side of the slider 20 close to the pull rod 31, and ... Figure 5 As shown in FIG. 1 , when the positioning element 30 is inserted into the first positioning groove, the slider 20 is completely pushed to the bottom of the slide groove 10, and the spot position 40 of the first detection light is on the slider 20. The first detection light does not pass through the light-transmitting hole 23. Therefore, the first detection light is blocked by the slider 20. At this time, the spot of the first detection light is not displayed at all in the microscopic imaging. The second positioning groove is set on the side of the slider 20 away from the pull rod 31, combined with Figure 7As shown, when the positioning element 30 is inserted into the second positioning groove, the spot position 40 of the first detection light is located outside the slider 20, and the first detection light does not pass through the filter element 22. The first detection light directly passes through the light-transmitting window 11 and irradiates the sample 911 or the sample rod to be tested. The light intensity of the first detection light far exceeds the illumination intensity of the second characteristic imaging. The spot of the first detection light and the microscopic imaging of the second characteristic cannot be displayed synchronously. The complete information measurement of the spot of the first detection light can be achieved, thereby achieving the measurement of the first characteristic of the sample 911 to be tested. The third positioning groove is set between the first positioning groove and the second positioning groove, and combined with Figure 6 As shown, when the positioning element 30 is inserted into the third positioning groove, the spot position 40 of the first detection light is located at the center of the filter element 22, and the first detection light passes through the filter element 22 and the light-transmitting hole 23, and irradiates the sample 911 to be tested and the sample rod from the light-transmitting window 11. The filter element 22 attenuates the light intensity of the first detection light, so that the position of the first detection light and the microscopic imaging of the second feature are synchronously displayed.

[0056] In the embodiment of the present disclosure, the measuring device 900 further includes a processor, which is electrically connected to the above-mentioned electrical components and is used to control the above-mentioned electrical components to perform actions.

[0057] Figures 8 to 11 is a schematic diagram of a light spot display method provided by an embodiment of the present disclosure. Any of the following methods can be executed in a magnetic measurement device, or in a server or terminal device that is connected to the magnetic measurement device for communication. In the embodiment of the present disclosure, the magnetic measurement device is used as the execution subject to explain the scheme.

[0058] Based on the structure of the above-mentioned measuring device, Figure 8 As shown, the embodiment of the present disclosure provides a light spot display method, including: S81, the measuring device obtains the operating mode of the measuring device.

[0059] S82, when the function of the operating mode includes a synchronous display function, the measuring device controls the light intensity adjustment device to attenuate the light intensity of the first detection light in the first light path; wherein the synchronous display function includes synchronously displaying the position of the first detection light in the image of the second detection light.

[0060] In the disclosed embodiment, the image of the second detection light includes an initial image of the sample to be tested formed under the action of the second detection light and other images after image processing operations are performed on the initial image, such as an enlarged image or a reduced image, etc. The image of the second detection light may also be an area within the spot of the second detection light, including the area of ​​the spot and other areas substantially overlapping with the edge of the spot.

[0061] Using the light spot display method provided by the embodiment of the present disclosure, the measuring device includes a first light path for measuring the first feature of the sample to be measured, a light intensity regulator arranged on the first light path, and a second light path for measuring the second feature of the sample to be measured. The operating mode of the measuring device is obtained, and when the function of the operating mode includes synchronously displaying the position of the first detection light in the image of the second feature, the light intensity regulator is controlled to attenuate the light intensity of the first detection light in the first light path. During the measurement process, the light intensity of the first detection light is attenuated by the light intensity regulator so that the light intensity of the first detection light is close to the light intensity of the detection light in the second light path, that is, close to the illumination intensity of the second feature microscopic imaging of the sample to be measured, and then when two detection lights with large light intensity differences are used to measure different magnetic features of the sample to be measured, the position of the detection light with stronger light intensity can be synchronously displayed on the feature image. Therefore, in the process of using the measuring device to measure the sample to be measured, the laser spot can be displayed while realizing the microscopic imaging of the magnetic domain, thereby improving the accuracy of the measurement result.

[0062] Optionally, the measuring device controls the light intensity adjustment device to attenuate the light intensity of the first detection light in the first light path, including: the measuring device controls the light intensity adjustment device to move the filter element to allow the first detection light to pass through the filter element.

[0063] In this way, the measuring device controls the light intensity adjustment device to move the filter element so that the first detection light passes through the filter element, thereby attenuating the light intensity of the first detection light and making the light intensity of the first detection light close to the intensity of the illumination of the second feature microscopic imaging.

[0064] Optionally, the measuring device controls the light intensity adjustment device to move the filter element, including: the measuring device determines a target positioning slot corresponding to the synchronous display function; the measuring device controls the slider to slide in the slot until the positioning element slides into the target positioning slot; wherein, when the positioning element slides into the target positioning slot, the first detection light passes through the filter element.

[0065] In this way, the measuring device determines the target positioning groove corresponding to the synchronous display function, and controls the slider to slide in the groove until the positioning element slides into the target positioning groove, so that the filter element and the light-transmitting hole are located on the first optical path, so that the first detection light can pass through the filter element and the light-transmitting hole and then be emitted to the sample to be measured or the sample rod.

[0066] Optionally, the measuring device controls the slider to slide in the slide groove, including: the measuring device controls the pull rod to pull the slider so that the slider passes through the through hole at a set speed.

[0067] In the disclosed embodiment, when the slider moves at high speed in the slide groove, the acceleration and deceleration of the slider may cause vibration, and it is difficult to quickly stabilize when reaching the predetermined position, thereby affecting the positioning accuracy. In addition, the sliding of the slider requires that the control system of the measuring device has sufficient response speed and accuracy to provide an accurate feedback signal. Therefore, the set speed of the slider sliding can be determined according to the detection requirement parameters, and the detection requirement parameters include one or more parameters of the dynamic response, stability, thermal effect, load change, lubrication condition, control system response and measurement and feedback of the measuring device. Specifically, the measuring device can determine the set speed of the slider sliding by a table lookup method or according to the mapping relationship between the set speed pre-stored in the local server and the above one or more parameters, thereby reducing the influence of the slider sliding on the positioning and measurement accuracy of the slider.

[0068] In this way, the measuring device controls the pull rod to pull the slider, so that the slider passes through the through hole at a set speed, so that the slider can be limited by the through hole, thereby improving the accuracy of slider positioning.

[0069] Optionally, the measuring device determines whether the positioning element slides into the target positioning slot according to the following method: the measuring device obtains the target vibration number and / or target sound number required for the positioning element to reach the target positioning slot from the initial positioning slot it currently slides into; the measuring device determines whether the positioning element slides into the target positioning slot based on the target vibration number and / or target sound number.

[0070] In the disclosed embodiment, the measuring device may obtain the target number of vibrations required for the positioning element to reach the target positioning slot from the initial positioning slot currently slid into, and judge whether the positioning element has slid into the target positioning slot based on the target number of vibrations. The measuring device may also obtain the target number of sounds required for the positioning element to reach the target positioning slot from the initial positioning slot currently slid into, and judge whether the positioning element has slid into the target positioning slot based on the target number of sounds. The measuring device may also obtain the target number of vibrations and the target number of sounds required for the positioning element to reach the target positioning slot from the initial positioning slot currently slid into, and judge whether the positioning element has slid into the target positioning slot based on the target number of vibrations and the target number of sounds.

[0071] Thus, as the slider slides, the positioning element will slide into the positioning slot, thereby generating vibration and sound. Therefore, by the number of times the vibration and / or sound are generated, the number of times the positioning element slides into the positioning slot can be determined, thereby determining the current position of the slider, and judging whether the positioning element slides into the target positioning slot, that is, whether the slider reaches the preset position, to meet the measurement requirements.

[0072] Optionally, the measuring device determines whether the positioning element slides into the target positioning slot based on the target vibration number and / or the target sound number, including: when the slider starts to slide, the measuring device detects the positioning vibration number and / or the positioning sound number; when the positioning vibration number reaches the target vibration number and / or the positioning sound number reaches the target sound number, the measuring device determines that the positioning element slides into the target positioning slot.

[0073] In the embodiment of the present disclosure, when the slider starts to slide, the measuring device can detect the number of positioning vibrations. When the number of positioning vibrations reaches the target number of vibrations, the measuring device determines that the positioning element slides into the target positioning slot. When the slider starts to slide, the measuring device can also detect the number of positioning sounds. When the number of positioning sounds reaches the target number of sounds, the measuring device determines that the positioning element slides into the target positioning slot. When the slider starts to slide, the measuring device can also detect the number of positioning vibrations and the number of positioning sounds. When the number of positioning vibrations reaches the target number of vibrations and the number of positioning sounds reaches the target number of sounds, the measuring device determines that the positioning element slides into the target positioning slot.

[0074] In this way, when the slider starts to slide, the distance the slider slides can be measured by the positioning vibration times and / or positioning sound times to determine the current position of the slider. Therefore, the measuring device detects the positioning vibration times and / or positioning sound times, and when the positioning vibration times reaches the target vibration times and / or the positioning sound times reaches the target sound times, it indicates that the positioning element slides into the target positioning slot, and the measurement requirements of the measuring device are met at this time.

[0075] Optionally, the measuring device obtains the target number of vibrations and / or target number of sounds required for the positioning element to reach the target positioning slot from the initial positioning slot currently sliding into, including: the measuring device obtains the number n of positioning slots spaced between the initial positioning slot and the target positioning slot; the measuring device determines that the target number of vibrations and / or target number of sounds is n+1.

[0076] In this way, the measuring device obtains the number n of the positioning slots between the initial positioning slot and the target positioning slot, and determines the target vibration number and / or the target sound number to be n+1. For example, when n=1, the target vibration number and / or the target sound number is 2, that is, when the initial positioning slot and the target positioning slot are separated by one positioning slot, the positioning element slides into the positioning slot between the initial positioning slot and the target positioning slot and the target positioning slot, and vibrates or sounds twice.

[0077] Based on the structure of the above-mentioned measuring device, Fig. 9 As shown, the embodiment of the present disclosure provides a light spot display method, including: S81, the measuring device obtains the operating mode of the measuring device.

[0078] S82, when the function of the operating mode includes a synchronous display function, the measuring device controls the light intensity adjustment device to attenuate the light intensity of the first detection light in the first optical path; wherein the synchronous display function includes synchronously displaying the position of the first detection light in the image of the second feature.

[0079] S91, when the function of the operating mode includes the function of measuring the first characteristic, the measuring device controls the light intensity adjustment device to make the first detection light directly pass through the light-transmitting window.

[0080] By adopting the light spot display method provided by the embodiment of the present disclosure, after the measuring device obtains the operating mode, when the function of the operating mode includes the function of measuring the first characteristic (such as a hysteresis loop), the measuring device directly controls the light intensity adjustment device to make the first detection light directly pass through the light-transmitting window, without making the first detection light of the first light path pass through the filter element and the light-transmitting hole, and only needs to make the first detection light reach the sample to be measured or the sample rod to achieve the measurement of the first characteristic of the sample to be measured.

[0081] Based on the structure of the above-mentioned measuring device, Fig.10 As shown, the embodiment of the present disclosure provides a light spot display method, including: S81, the measuring device obtains the operating mode of the measuring device.

[0082] S82, when the function of the operating mode includes a synchronous display function, the measuring device controls the light intensity adjustment device to attenuate the light intensity of the first detection light in the first optical path; wherein the synchronous display function includes synchronously displaying the position of the first detection light in the image of the second feature.

[0083] S101, when the function of the operating mode does not include the function of synchronously displaying the position of the first detection light in the image of the second feature, the measuring device controls the light intensity adjustment device to block the first detection light so that the first detection light is not emitted to the sample to be measured.

[0084] In the embodiment of the present disclosure, when the function of the operating mode does not include the function of synchronously displaying the position of the first detection light in the image of the second feature (the image of the second detection light), the measuring device can control the light intensity regulating device to block the first detection light so that the first detection light is not emitted to the sample to be measured, or can control the light intensity regulating device to allow the first detection light to directly pass through the light-transmitting window. Specifically, when the function of the operating mode does not include the function of synchronously displaying the position of the first detection light in the image of the second feature, the corresponding operation can be determined according to the measurement requirements. For example, when the function of the operating mode does not include the function of measuring the first feature, the measuring device can control the light intensity regulating device to block the first detection light so that the first detection light is not emitted to the sample to be measured; when the function of the operating mode includes the function of measuring the first feature, the measuring device can control the light intensity regulating device to allow the first detection light to directly pass through the light-transmitting window.

[0085] In an embodiment of the present disclosure, a measuring device controls a light intensity adjustment device to block a first detection light, including: the measuring device determines a blocking positioning groove corresponding to the function of blocking the first detection light; the measuring device controls a slider to slide in the sliding groove until a positioning element slides into the blocking positioning groove; wherein, when the positioning element slides into the blocking positioning groove, a non-light-transmitting portion of the slider is located on the first optical path, and the filter element and the light-transmitting hole are not located on the first optical path, thereby achieving blocking of the first detection light in the first optical path.

[0086] With the light spot display method provided by the embodiment of the present disclosure, after the measuring device obtains the operating mode of the measuring device, when the function of the operating mode does not include the function of synchronously displaying the position of the first detection light in the image of the second feature, the measuring device controls the light intensity adjustment device to block the first detection light so that the first detection light is not directed to the sample to be measured or the sample rod. Since the first detection light is blocked, the image does not display the position of the first detection light. Alternatively, the measuring device controls the light intensity adjustment device to make the first detection light directly pass through the light-transmitting window. Since the light intensity of the first detection light is much greater than the light intensity of the second detection light, the second feature microscopic imaging cannot display the position of the first detection light.

[0087] Optionally, the light spot display method further includes: after the synchronous display function is started, the measuring device adjusts the position of the first detection light in the image of the second detection light to a target position.

[0088] Thus, in actual use, after obtaining the magnetic domain image, it may be necessary to further quantitatively measure part of the region of interest of the magnetic domain image. At this time, it is necessary to accurately align the light used to detect the region of interest with the position of interest, while the resolution of the magnetic domain image is about several hundred nanometers, and it is difficult to adjust the laser irradiation position. Therefore, when the synchronous display function is started, since the first detection light can be displayed more clearly in the image of the second detection light, at this time, the measuring device adjusts the position of the first detection light in the image of the second detection light to the target position, so that the first detection light can be more accurately aligned with the position of the part of the region of interest of the magnetic domain image, thereby improving the accuracy of the measurement result.

[0089] Combination Fig.11 As shown, the embodiment of the present disclosure provides a light spot display device 800, including a processor 801 and a memory 802. Optionally, the device may also include a communication interface 803 and a bus 804. The processor 801, the communication interface 803, and the memory 802 may communicate with each other through the bus 804. The communication interface 803 may be used for information transmission. The processor 801 may call the logic instructions in the memory 802 to execute the light spot display method of the above embodiment.

[0090] In addition, the logic instructions in the memory 802 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0091] The memory 802 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 801 executes the function application and data processing by running the program instructions / modules stored in the memory 802, that is, the light spot display method in the above embodiment is realized.

[0092] The memory 802 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 802 may include a high-speed random access memory and may also include a non-volatile memory.

[0093] The embodiment of the present disclosure provides a magnetic measuring device, including: a magnetic measuring device body, and the above-mentioned spot display device 800. The spot display device 800 can be installed in the magnetic measuring device body. The installation relationship described here is not limited to placement inside the magnetic measuring device, but also includes installation connections with other components of the magnetic measuring device, including but not limited to physical connections, electrical connections, or signal transmission connections. It can be understood by those skilled in the art that the spot display device 800 can be adapted to a feasible magnetic measuring device body, thereby realizing other feasible embodiments.

[0094] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned light spot display method.

[0095] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0096] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method or device including the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0097] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0098] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0099] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A light spot display method, characterized in that: Applied to a measuring device, the measuring device comprises a first optical path and a second optical path for measuring a sample to be measured by means of a first detection light and a second detection light respectively, and a light intensity adjustment device arranged on the first optical path; the method comprises: obtaining an operating mode of a measuring device; When the function of the operating mode includes a synchronous display function, controlling the light intensity adjustment device to attenuate the light intensity of the first detection light in the first light path; The synchronous display function includes synchronously displaying the position of the first detection light in the image of the second detection light.

2. The method according to claim 1, characterized in that: The light intensity adjustment device includes a filter element for attenuating the light intensity of the first detection light; controlling the light intensity adjustment device to attenuate the light intensity of the first detection light in the first light path includes: The light intensity adjustment device is controlled to move the filter element so that the first detection light passes through the filter element.

3. The method according to claim 2, characterized in that The light intensity adjustment device further includes a slide groove, a slider provided with a positioning groove, and a positioning element, wherein a light transmission hole is provided on the slider, and a filter element is provided at the light transmission hole; controlling the light intensity adjustment device to move the filter element includes: Determine the target positioning slot corresponding to the synchronous display function; The slider is controlled to slide in the slide groove until the positioning element slides into the target positioning groove; wherein, when the positioning element slides into the target positioning groove, the first detection light passes through the filter element.

4. The method according to claim 3, characterized in that The positioning element is a spring ball plunger; use the following method to determine whether the positioning element slides into the target positioning groove: Obtaining a target number of vibrations and / or a target number of sounds required for the positioning element to reach a target positioning groove from the initial positioning groove into which it currently slides; Whether the positioning element slides into the target positioning groove is determined according to the target vibration times and / or the target sounding times.

5. The method according to claim 4, characterized in that Judging whether the positioning element slides into the target positioning slot according to the target vibration times and / or the target sounding times, including: When the slider starts to slide, the number of positioning vibrations and / or the number of positioning sounds are detected; When the number of positioning vibrations reaches the target number of vibrations and / or the number of positioning sounds reaches the target number of sounds, it is determined that the positioning element slides into the target positioning slot.

6. The method according to claim 3, characterized in that Obtaining the target vibration times and / or target sound times required for the positioning element to reach the target positioning slot from the initial positioning slot currently slid into, including: Obtain the number n of positioning grooves between the initial positioning groove and the target positioning groove; The target number of vibrations and / or the target number of utterances is determined to be n+1.

7. The method according to any one of claims 1 to 6, characterized in that The light intensity adjustment device includes a light-transmitting window; after obtaining the operating mode of the measuring device, it also includes: When the function of the operating mode includes the function of measuring the first characteristic, the light intensity adjustment device is controlled to allow the first detection light to directly pass through the light-transmitting window.

8. The method according to any one of claims 1 to 6, characterized in that After obtaining the operating mode of the measuring device, it also includes: When the function of the operating mode does not include the function of synchronously displaying the position of the first detection light in the image of the second feature, the light intensity adjustment device is controlled to block the first detection light so that the first detection light is not emitted to the sample to be tested.

9. The method according to any one of claims 1 to 6, characterized in that Also includes: When the synchronous display function is activated, the position of the first detection light in the image of the second detection light is adjusted to a target position.

10. A light spot display device, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the light spot display method according to any one of claims 1 to 9 when running the program instructions.

Images