Optical device and optical system

Abstract

The application provides an optical device and an optical system, and particularly relates to the field of optical technology. The optical device comprises a light path transmission module, a light path excitation and collection module and a first connecting structure. The light path transmission module is used for receiving a light source. The light path transmission module comprises a first exit end. The light path excitation and collection module is used for exciting and collecting a light signal of the light source after the light source irradiates a sample. The light path excitation and collection module comprises a first entrance end. The first connecting structure comprises a first groove arranged on one of the first exit end and the first entrance end, a first protrusion arranged on the other one, a first through hole arranged on the first exit end or the first entrance end where the first groove is arranged, and a first limiting piece. Along an axial direction of the first through hole, a size of the first groove is greater than a size of the first protrusion. When the first protrusion is inserted into the first groove, the first limiting piece abuts against an outer contour of the first protrusion through the first through hole, so as to limit displacement of the first protrusion in the first groove.

Description

Technical Field

[0001] This application relates to the field of optical technology, and in particular to an optical device and optical system. Background Technology

[0002] Optical devices are used for laser-induced breakdown spectroscopy (LIBS). It should be noted that laser-induced breakdown spectroscopy is a rapid spectral detection and analysis method that can achieve both qualitative and quantitative detection.

[0003] In some confined space applications, the various modules of the optical devices in related technologies impose restrictions on installation tools, installation steps, device size, and post-assembly debugging, resulting in complex optical assembly and limited assembly of the various modules of the optical devices, and weak versatility of the optical devices. Summary of the Invention

[0004] This application provides an optical device and optical system that only requires a first protrusion to be inserted into a first groove, and a first limiting member to abut against the outer contour of the first protrusion through a first through hole to limit the displacement of the first protrusion in the first groove. This allows for the rapid and reliable assembly and debugging of the optical path transmission module and the optical path excitation and collection module, without being limited by the space of the application scenario, thus enhancing versatility.

[0005] In a first aspect, this application provides an optical device comprising an optical path transmission module, an optical path excitation and collection module, and a first connection structure. The optical path transmission module receives a light source and includes a first emitting end. The optical path excitation and collection module excites and collects the light signal received by the optical path transmission module after irradiating a sample, and includes a first incident end. The first connection structure includes a first groove on one of the first emitting end and the first incident end, a first protrusion on the other, a first through hole on the first emitting end or the first incident end with the first groove, and a first limiting member. Along the axial direction of the first through hole, the size of the first groove is larger than the size of the first protrusion. When the first protrusion is inserted into the first groove, the first limiting member abuts against the outer contour of the first protrusion through the first through hole to limit the displacement of the first protrusion within the first groove. The axial direction of the first through hole forms an angle with the insertion direction of the first protrusion and the first groove.

[0006] The optical device provided in this application, by setting a first connecting structure, includes a first groove on one of the first emitting end and the first incident end, a first protrusion on the other, a first through hole and a first limiting member on the first emitting end or the first incident end where the first groove is set, and the size of the first groove is larger than the size of the first protrusion along the axial direction of the first through hole. When the first protrusion is inserted into the first groove, the first limiting member abuts against the outer contour of the first protrusion through the first through hole to limit the displacement of the first protrusion in the first groove. In other words, as long as the first protrusion is inserted into the first groove, the first limiting member abuts against the outer contour of the first protrusion through the first through hole to limit the displacement of the first protrusion in the first groove, the assembly and debugging of the optical path transmission module and the optical path excitation and collection module can be realized quickly and reliably, without being limited by the space of the application scenario, and has strong versatility. Compared to related technologies, which suffer from complex assembly and debugging of various modules in optical devices, limited space in application scenarios, and weak versatility, this application, through the design of the first connection structure, has the technical effect of enabling rapid and reliable assembly and debugging of the optical path transmission module and the optical path excitation and collection module, without being limited by the space of application scenarios, and with strong versatility.

[0007] In one possible implementation provided in this application, at least a portion of the groove wall of the first groove is inclined at a first included angle toward the center of the first groove along a direction close to the first protrusion to form a first inclined groove wall, and at least a portion of the outer contour of the first protrusion is inclined at a second included angle toward the center of the first protrusion along a direction away from the first groove to form a first inclined outer contour. When the first protrusion is inserted into the first groove, the first inclined groove wall and the first inclined outer contour are adapted to each other; wherein, the degree of the first included angle and the second included angle are the same.

[0008] In one possible implementation provided in this application, the first groove includes a first part of the groove wall and a second part of the groove wall distributed along a direction having an angle with the insertion direction. The first part of the groove wall forms a first inclined groove wall, and the extension direction of the second part of the groove wall is parallel to the insertion direction to form a first parallel groove wall. The entire outer contour of the first protrusion forms a first inclined outer contour. When the first protrusion is inserted into the first groove, a portion of the first inclined outer contour is adapted to the first inclined groove wall.

[0009] In one possible implementation provided in this application, the inner wall of the first through hole is a threaded hole, and the outer contour of the first limiting member is provided with a first thread, and the first limiting member is adapted to the thread of the first through hole.

[0010] In one possible implementation provided in this application, the optical path transmission module includes a first optical path transmission component, a second optical path transmission component, and a steering component. The first optical path transmission component includes a second emitting end, and the second optical path transmission component includes a second incident end and a first emitting end, which are located in different directions. The steering component is used to turn the light source of the second incident end towards the first emitting end. The optical device also includes a second connecting structure, which includes a second groove provided on one of the second emitting end and the second incident end, a second protrusion provided on the other, a second through hole opened on the second emitting end or the second incident end where the second groove is provided, and a second limiting component. Along the axial direction of the second through hole, the size of the second groove is larger than the size of the second protrusion. When the second protrusion is inserted into the second groove, the second limiting component abuts against the outer contour of the second protrusion through the second through hole to limit the displacement of the second protrusion in the second groove. The axial direction of the second through hole forms an angle with the insertion direction of the second protrusion and the second groove.

[0011] In one possible implementation provided in this application, the optical path transmission module includes a third incident end, which is provided with a connecting flange for connecting to a laser device that emits light source.

[0012] In one possible implementation provided in this application, the optical device further includes an optical fiber bundle collection module, which includes an optical fiber bundle collection end and an optical fiber bundle transmission end. The optical fiber bundle collection end is used to collect the light signal that is excited and collected after the light source irradiates the sample. The optical fiber bundle collection end is fixed inside the optical path excitation and collection module, and the optical fiber bundle transmission end extends through the optical path excitation and collection module to the outside of the optical device.

[0013] In one possible implementation provided in this application, the optical device further includes an auxiliary connection structure, and the optical path excitation and collection module further includes a third emission end. The auxiliary connection structure is disposed at the third emission end and is used to connect an auxiliary pendant.

[0014] Secondly, this application provides an optical system comprising a housing, a sample stage, an optical device according to any one of the first aspects, a laser device, a spectrometer device, and a control device, wherein the sample stage is placed inside the housing and is used to place a sample, the optical device is located inside the housing, the laser device is located outside the housing and is used to emit a light source for the optical transmission module of the optical device, the spectrometer device is located outside the housing and is used to receive the light signal excited and collected by the optical path excitation and collection module in the optical device, and the control device is connected to the sample stage, the laser device, and the spectrometer device respectively.

[0015] The optical system provided in this application, since it includes the optical device provided in any of the first aspects, has the same technical effect. That is, it only requires the first protrusion to be inserted into the first groove, and the first limiting member to abut against the outer contour of the first protrusion through the first through hole to limit the displacement of the first protrusion in the first groove. This allows for the rapid and reliable assembly and debugging of the optical path transmission module and the optical path excitation and collection module, without being limited by the space of the application scenario, thus enhancing its versatility.

[0016] In one possible implementation provided in this application, the control device is connected to the sample stage, the laser device, and the spectrometer device via cables. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an optical device provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the first connection structure in the optical device provided in the embodiments of this application;

[0019] Figure 3 Provided for the embodiments of this application Figure 2 An explosion diagram;

[0020] Figure 4 This is a schematic diagram of another optical device provided in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the structure of the optical system provided in an embodiment of this application.

[0022] Figure label:

[0023] 1-Optical device; 11-Optical path transmission module; 111-First optical path transmission component; 1111-Third incident end; 1112-Second exit end; 112-Second optical path transmission component; 1121-Second incident end; 1122-First exit end; 1123-Directional component; 12-Optical path excitation and collection module; 121-First incident end; 122-Third exit end; 13-First connecting structure; 131-First groove; 1311-First inclined groove wall; 1312-First parallel groove wall; 132-First protrusion; 1321-First inclined outer contour; 33-First limiting component; 14-Second connecting structure; 141-Second groove; 142-Second protrusion; 143-Second limiting component; 15-Connecting flange; 151-Threaded hole; 152-Positioning pin hole; 153-Fiber optic bundle through hole; 16-Fiber optic bundle collection module; 161-Fiber optic bundle collection end; 162-Fiber optic bundle transmission end; 17-Auxiliary connecting structure; 18-Optical window; 2-Box; 21-Operating port; 3-Sample stage; 4-Laser device; 5-Spectrometer device; 6-Control device; 61-Computer control module; 62-Motion control module. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0026] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0027] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0028] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0029] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0030] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides an optical device 1, which includes an optical path transmission module 11, an optical path excitation and collection module 12, and a first connection structure 13. The optical path transmission module 11 receives a light source and includes a first emitting end 1122. The optical path excitation and collection module 12 excites and collects the light signal received by the optical path transmission module 11 after irradiating a sample, and includes a first incident end 121. The first connection structure 13 includes a first groove 131 disposed on one of the first emitting end 1122 and the first incident end 121, and a groove 131 disposed on the other end 121. The first protrusion 132, the first through hole on the first exit end 1122 or the first entrance end 121 of the first groove 131, and the first limiting member 133 are provided. Along the axial direction of the first through hole, the size of the first groove 131 is larger than the size of the first protrusion 132. When the first protrusion 132 is inserted into the first groove 131, the first limiting member 133 abuts against the outer contour of the first protrusion 132 through the first through hole to limit the displacement of the first protrusion 132 in the first groove 131. The axial direction of the first through hole has an angle with the insertion direction of the first protrusion 132 and the first groove 131.

[0032] In this embodiment, the optical device 1 is used for laser-induced breakdown spectroscopy (LIBS). It should be explained that LIBS involves focusing an ultrashort pulse laser onto the sample surface to form plasma, and then analyzing the spectrum emitted by the plasma to determine the material composition or content of the sample. The ultrashort pulse laser has a high energy density after focusing, which can excite samples of any state (solid, liquid, or gas) to form plasma.

[0033] In this embodiment, the first connecting structure 13 includes a first groove 131 provided on one of the first emission end 1122 and the first injection end 121, a first protrusion 132 provided on the other, a first through hole opened on the first emission end 1122 or the first injection end 121 where the first groove 131 is provided, and a first limiting member 133. Here, the first connecting structure 13 may include the first groove 131 provided on the first emission end 1122, the first protrusion 132 provided on the first injection end 121, and the first through hole opened on the first emission end 1122; of course, the first connecting structure 13 may also include the first groove 131 provided on the first injection end 121, the first protrusion 132 provided on the first emission end 1122, and the first through hole opened on the first injection end 121; this embodiment does not limit this.

[0034] In this embodiment, along the axial direction of the first through hole, the size of the first groove 131 is larger than the size of the first protrusion 132. This facilitates the insertion of the first protrusion 132 into the first groove 131, and also provides abutment space for the first limiting member 133 to abut against the outer contour of the first protrusion 132 through the first through hole.

[0035] In this embodiment, the inner contour shape of the first groove 131 can be a regular shape. For example, the inner contour shape of the first groove 131 can be cylindrical, or it can be cubic. Of course, the inner contour shape of the first groove 131 can also be irregular; this embodiment does not limit this. In one possible implementation provided by this embodiment, the inner contour shape of the first groove 131 is a dovetail-like shape, and the first groove 131 can be a rotationally symmetric conical groove.

[0036] In this embodiment, the outer contour shape of the first protrusion 132 can be a regular shape. For example, the outer contour shape of the first protrusion 132 can be cylindrical, or it can be cubic. Of course, the outer contour shape of the first protrusion 132 can also be irregular; this embodiment does not limit this. In one possible implementation provided by this embodiment, the shape of the outer contour of the first protrusion 132 is also a swallowtail shape, and the first protrusion 132 is a rotationally symmetric solid cone.

[0037] In this embodiment, the first through hole can be a smooth hole; the first through hole can also be a threaded hole 151, and this embodiment does not limit the specific type of hole. In one possible implementation provided by this embodiment, the first through hole is a threaded hole 151; correspondingly, the outer contour of the first limiting member 133 may not have threads; the outer contour of the first limiting member 133 may also have threads, and this embodiment also does not limit the specific type of hole. In one possible implementation provided by this embodiment, the outer contour of the first limiting member 133 is threaded, the first through hole is a threaded hole 151, and the threads on the outer contour of the first limiting member 133 are adapted to the threaded hole 151.

[0038] In this embodiment, when the first protrusion 132 is inserted into the first groove 131, the first limiting member 133 abuts against the outer contour of the first protrusion 132 through the first through hole to limit the displacement of the first protrusion 132 in the first groove 131. Here, it should be explained that limiting the position of the first protrusion 132 in the first groove 131 refers to the position of the first protrusion 132 in various directions in the first groove 131. For example, if the first groove 131 is a rotationally symmetrical conical groove and the first protrusion 132 is a rotationally symmetrical solid cone, then limiting the displacement of the first protrusion 132 in the first groove 131 refers to limiting the rotation of the first protrusion 132 in the first groove 131 and the position of the first protrusion 132 in the first groove 131 along its insertion direction. Based on this, the first groove 131 is a conical groove that is rotated to the opposite side, and the first protrusion 132 is a solid cone that is rotated symmetrically. The rotation axes of the two are inserted into the first groove 131 through the first protrusion 132. When the first limiting member 133 abuts against the outer contour of the first protrusion 132 through the first through hole, it is collinear. At the same time, the rotation axes of the two should be perpendicular to the contact surface of the first exit end 1122 and the first entrance end 121.

[0039] The optical device 1 provided in this application embodiment has a first connecting structure 13, which includes a first groove 131 on one of the first emission end 1122 and the first incident end 121, a first protrusion 132 on the other, a first through hole and a first limiting member 133 on the first emission end 1122 or the first incident end 121 where the first groove 131 is provided. Along the axial direction of the first through hole, the size of the first groove 131 is larger than the size of the first protrusion 132. When the first protrusion 132 is inserted into the first groove 131... When the first protrusion 132 is inserted into the first groove 131, the first limiting member 133 abuts against the outer contour of the first protrusion 132 through the first through hole to limit the displacement of the first protrusion 132 within the first groove 131. In other words, as long as the first protrusion 132 is inserted into the first groove 131, the first limiting member 133 abuts against the outer contour of the first protrusion 132 through the first through hole to limit the displacement of the first protrusion 132 within the first groove 131, the assembly and debugging of the optical path transmission module 11 and the optical path excitation and collection module 12 can be realized quickly and reliably, without being limited by the space of the application scenario, and with strong versatility.

[0040] Compared to the complex assembly and debugging of various modules in the optical device 1 in related technologies, which are limited by the space of the application scenario and have weak versatility, this application, through the design of the first connection structure 13, has the technical effect of being able to quickly and reliably realize the assembly and debugging of the optical path transmission module 11 and the optical path excitation and collection module 12, which is not limited by the space of the application scenario and has strong versatility.

[0041] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides an optical device 1. At least a portion of the groove wall of the first groove 131 is inclined at a first included angle toward the center of the first groove 131 in a direction close to the first protrusion 132 to form a first inclined groove wall 1311. At least a portion of the outer contour of the first protrusion 132 is inclined at a second included angle toward the center of the first protrusion 132 in a direction away from the first groove 131 to form a first inclined outer contour 1321. When the first protrusion 132 is inserted into the first groove 131, the first inclined groove wall 1311 and the first inclined outer contour 1321 are adapted to each other. The first included angle and the second included angle have the same degree.

[0042] In this embodiment, at least a portion of the groove wall of the first groove 131 is inclined at a first included angle towards the center of the first groove 131 along a direction close to the first protrusion 132, forming a first inclined groove wall 1311, similar to a dovetail structure. Here, a portion of the groove wall of the first groove 131 can be inclined at a first included angle towards the center of the first groove 131 along a direction close to the first protrusion 132 to form the first inclined groove wall 1311; alternatively, all the groove walls of the first groove 131 can be inclined at a first included angle towards the center of the first groove 131 along a direction close to the first protrusion 132 to form the first inclined groove wall 1311. This embodiment does not limit the specific type of inclination. Furthermore, the first groove 131 can be a symmetrical conical groove rotating around a rotation axis, where the center of the first groove 131 can be the location of the rotation axis.

[0043] In this embodiment, at least a portion of the outer contour of the first protrusion 132 is oriented towards the center of the first protrusion 132 in a direction away from the first groove 131, resembling a dovetail structure. Here, a portion of the outer contour of the first protrusion 132 can be inclined towards the center of the first protrusion 132 in a direction away from the first groove 131 to form the first inclined outer contour 1321; alternatively, the entire outer contour of the first protrusion 132 can be inclined at a second included angle towards the center of the first protrusion 132 in a direction away from the first groove 131 to form the first inclined outer contour 1321. This embodiment does not limit the specific form of the first protrusion 132. Furthermore, the first protrusion 132 can also be a solid cone rotationally symmetrical about a rotation axis, where the center of the first protrusion 132 can be the location of the rotation axis.

[0044] In this embodiment of the application, when the first protrusion 132 is inserted into the first groove 131, the first inclined groove wall 1311 is adapted to the first inclined outer contour 1321. Here, when the first groove 131 is a rotary symmetrical conical groove and the first protrusion 132 is a rotary symmetrical solid cone, when the first protrusion 132 is inserted into the first groove 131, the rotation axis of the first groove 131 is collinear with the rotation axis of the first protrusion 132, and is perpendicular to the contact surface between the first exit end 1122 and the first incident end 121.

[0045] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This application provides an optical device 1. The first groove 131 includes a first part of the groove wall and a second part of the groove wall distributed along a direction having an angle with the insertion direction. The first part of the groove wall forms a first inclined groove wall 1311. The extension direction of the second part of the groove wall is parallel to the insertion direction to form a first parallel groove wall 1312. The entire outer contour of the first protrusion 132 forms a first inclined outer contour 1321. When the first protrusion 132 is inserted into the first groove 131, a portion of the first inclined outer contour 1321 is adapted to the first inclined groove wall 1311.

[0046] In this embodiment of the application, the first groove 131 includes a first part of the groove wall and a second part of the groove wall distributed at an angle to the insertion direction. The first part of the groove wall forms a first inclined groove wall 1311, and the extension direction of the second part of the groove wall is parallel to the insertion direction to form a first parallel groove wall 1312. Here, for example, the first groove 131 is a symmetrical conical groove of the rotation axis, and then a part of the groove wall of the first groove 131 is cut off, and a first through hole is opened on the cut side.

[0047] In this embodiment, the entire outer contour of the first protrusion 132 forms a first inclined outer contour 1321. Here, the first protrusion 132 can be a solid cone symmetrical about a rotational axis. Based on this, when the first protrusion 132 is inserted into the first groove 131, a portion of the first inclined outer contour 1321 is adapted to the first inclined groove wall 1311, and another portion of the first inclined outer contour 1321 is used to abut against the first limiting member 133.

[0048] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides an optical device 1, in which the inner wall of the first through hole is a threaded hole 151, and the outer contour of the first limiting member 133 is provided with a first thread, and the first limiting member 133 is adapted to the thread of the first through hole.

[0049] The optical device 1 provided in this application embodiment sets the inner wall of the first through hole as a threaded hole 151 and sets the first thread on the outer contour of the first limiting member 133. The first limiting member 133 is adapted to the first through hole. In this way, the first limiting member 133 can abut against the outer contour of the first protrusion 132 through the first through hole, and more reliably restrict the displacement of the first protrusion 132 in the first groove 131.

[0050] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This application provides an optical device 1. The optical path transmission module 11 includes a first optical path transmission component 111, a second optical path transmission component 112, and a steering component 1123. The first optical path transmission component 111 includes a second emitting end 1112, and the second optical path transmission component 112 includes a second incident end 1121 and a first emitting end 1122, which are located in different directions. The steering component 1123 is used to direct the light source from the second incident end 1121 to the first emitting end 1122. The optical device 1 also includes a second connecting structure 14, which includes components at the second emitting end 1112 and the second incident end 1121. One of the surfaces has a second groove 141, and the other has a second protrusion 142. A second through hole and a second limiting member 143 are provided on the second exit end 1112 or the second entrance end 1121 of the second groove 141. Along the axial direction of the second through hole, the size of the second groove 141 is larger than the size of the second protrusion 142. When the second protrusion 142 is inserted into the second groove 141, the second limiting member 143 abuts against the outer contour of the second protrusion 142 through the second through hole to limit the displacement of the second protrusion 142 in the second groove 141. The axial direction of the second through hole is at an angle to the insertion direction of the second protrusion 142 and the second groove 141.

[0051] In this embodiment, the second connecting structure 14 includes a second groove 141 disposed on one of the second exit end 1112 and the second entrance end 1121, a second protrusion 142 disposed on the other, a second through hole opened on the second exit end 1112 or the second entrance end 1121 where the second groove 141 is disposed, and a second limiting member 143. Here, the second connecting structure 14 may include the second groove 141 disposed on the second exit end 1112, the second protrusion 142 disposed on the second entrance end 1121, and the second through hole opened on the second exit end 1112; of course, the second connecting structure 14 may also include the second groove 141 disposed on the second entrance end 1121, the second protrusion 142 disposed on the second exit end 1112, and the second through hole opened on the second entrance end 1121; this embodiment does not limit this.

[0052] In this embodiment, along the axial direction of the second through hole, the size of the second groove 141 is larger than the size of the second protrusion 142. This facilitates the insertion of the second protrusion 142 into the second groove 141, and also provides abutment space for the second limiting member 143 to abut against the outer contour of the second protrusion 142 through the second through hole.

[0053] In this embodiment, the inner contour shape of the second groove 141 can be a regular shape. For example, the inner contour shape of the second groove 141 can be cylindrical, or it can be cubic. Of course, the inner contour shape of the second groove 141 can also be irregular; this embodiment does not limit this. In one possible implementation provided by this embodiment, the inner contour shape of the second groove 141 is a dovetail-like shape, and the second groove 141 can be a rotationally symmetric conical groove.

[0054] In this embodiment, the outer contour shape of the second protrusion 142 can be a regular shape, for example, it can be cylindrical or cubic; of course, the outer contour shape of the second protrusion 142 can also be irregular; this embodiment does not limit this. In one possible implementation provided by this embodiment, the shape of the outer contour of the second protrusion 142 is also a swallowtail shape, and the second protrusion 142 is a rotationally symmetric solid cone.

[0055] In this embodiment, the second through hole can be a smooth hole; the second through hole can also be a threaded hole 151, and this embodiment does not limit the specific type of hole. In one possible implementation provided by this embodiment, the second through hole is a threaded hole 151; correspondingly, the outer contour of the second limiting member 143 may not have threads; the outer contour of the second limiting member 143 may also have threads, and this embodiment also does not limit the specific type of hole. In one possible implementation provided by this embodiment, the outer contour of the second limiting member 143 is threaded, the second through hole is a threaded hole 151, and the threads on the outer contour of the second limiting member 143 are adapted to the threaded hole 151.

[0056] In this embodiment, when the second protrusion 142 is inserted into the second groove 141, the second limiting member 143 abuts against the outer contour of the second protrusion 142 through the second through hole to limit the displacement of the second protrusion 142 in the second groove 141. Here, it should be explained that limiting the position of the second protrusion 142 in the second groove 141 refers to the position of the second protrusion 142 in various directions within the second groove 141. For example, if the second groove 141 is a rotationally symmetrical conical groove and the second protrusion 142 is a rotationally symmetrical solid cone, then limiting the displacement of the second protrusion 142 in the second groove 141 refers to limiting the rotation of the second protrusion 142 within the second groove 141 and the position of the second protrusion 142 within the second groove 141 along its insertion direction. Based on this, the second groove 141 is a conical groove that is rotated to the opposite side, and the second protrusion 142 is a solid cone that is rotated symmetrically. The rotation axes of the two are inserted into the second groove 141 through the second protrusion 142. When the second limiting member 143 abuts against the outer contour of the second protrusion 142 through the second through hole, it is collinear. At the same time, the rotation axes of the two should be perpendicular to the contact surface of the second exit end 1112 and the second entrance end 1121.

[0057] In this embodiment, at least a portion of the groove wall of the second groove 141 is inclined at a third angle toward the center of the second groove 141 in a direction close to the second protrusion 142 to form a second inclined groove wall, and at least a portion of the outer contour of the second protrusion 142 is inclined at a fourth angle toward the center of the second protrusion 142 in a direction away from the second groove 141 to form a second inclined outer contour. When the second protrusion 142 is inserted into the second groove 141, the second inclined groove wall and the second inclined outer contour are adapted to each other; wherein, the degree of the third angle and the fourth angle are the same.

[0058] In this embodiment, the second groove 141 includes a third part groove wall and a fourth part groove wall distributed along a direction having an angle with the insertion direction. The third part groove wall forms a first inclined groove wall 1311, and the extension direction of the fourth part groove wall is parallel to the installation direction to form a second parallel groove wall. The entire outer contour of the second protrusion 142 forms a second inclined outer contour. When the second protrusion 142 is inserted into the second groove 141, a portion of the second inclined outer contour is adapted to the second inclined groove wall.

[0059] In this embodiment of the application, the inner wall of the second through hole is a threaded hole 151, and the outer contour of the second limiting member 143 is provided with a second thread, and the second limiting member 143 is adapted to the thread of the second through hole.

[0060] In this embodiment, the steering member 1123 is used to turn the light source of the second incident end 1121 to the first exit end 1122. Here, the steering member 1123 can be an inclined lens to turn the light source of the second incident end 1121 to the first exit end 1122. In one possible implementation provided in this embodiment, the second incident end 1121 and the first exit end 1122 are set at right angles, and the steering member 1123 is a lens placed at an inclination of 45 degrees.

[0061] In this embodiment, the optical device 1 may also include other optical modules. A third connection structure is provided between the second optical path transmission component 112 and other optical modules. The third connection structure is connected in the same way as the first connection structure 13, so as to extend the optical device 1 to other functions.

[0062] The optical device 1 provided in this application embodiment includes a second connecting structure 14, which comprises a second groove 141 on one of the second emission end 1112 and the second incident end 1121, a second protrusion 142 on the other, a second through hole and a second limiting member 143 on the second emission end 1112 or the second incident end 1121 where the second groove 141 is provided, and along the axial direction of the second through hole, the size of the second groove 141 is larger than the size of the second protrusion 142. When the second protrusion 142 is inserted into the second groove 141... When the second protrusion 142 is inserted into the second groove 141, the second limiting member 143 abuts against the outer contour of the second protrusion 142 through the second through hole to limit the displacement of the second protrusion 142 within the second groove 141. In other words, as long as the second protrusion 142 is inserted into the second groove 141, the second limiting member 143 abuts against the outer contour of the second protrusion 142 through the second through hole to limit the displacement of the second protrusion 142 within the second groove 141, the assembly and debugging of the first optical path transmission component 111 and the second optical path transmission component 112 can be realized quickly and reliably, without being limited by the space of the application scenario, and with strong versatility.

[0063] Based on this, if the optical device 1 also includes one or more other modules, a third connection structure may be provided between one of the other modules and the optical path transmission module 11 or the optical path excitation and collection module 12, or between two adjacent modules among multiple other modules. This application embodiment does not limit this. It should be noted that the connection method of the third connection structure is the same as that of the first connection structure 13 and the second connection structure 14.

[0064] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This application provides an optical device 1, and the optical path transmission module 11 includes a third incident end 1111. The third incident end 1111 is provided with a connecting flange 15, which is used to connect to the laser device 4 that emits the light source.

[0065] In this embodiment, a threaded hole 151 can be opened on the connecting flange 15, and it can be connected to the laser device 4 of the emitting light source through a threaded connector; a pin hole can also be opened on the connecting flange 15, and it can be connected to the laser device 4 of the emitting light source through a positioning pin; a pin hole can be opened on the connecting flange 15 at the same time as the threaded hole 151, and it can be connected to the laser device 4 of the emitting light source through the combined action of the threaded connector and the positioning pin. In one possible implementation provided in this application embodiment, at least two threaded holes 151 and at least two locating pin holes 152 are provided on the connecting flange 15. Of course, a light-transmitting hole for the light source emitted by the laser device 4 to enter is also required on the connecting flange 15. Here, it should be further explained that, for example, the first groove 131 is a symmetrical conical groove with a rotating axis, and the first protrusion 132 is a solid cone with a rotating axis that is symmetrical. When the first protrusion 132 is inserted into the first groove 131, the rotation axis of the first groove 131 and the rotation axis of the first protrusion 132 are collinear with the axis of the light-transmitting hole and are perpendicular to the mounting surface of the connecting flange 15 and the laser device 4 emitting the light source.

[0066] The optical device 1 provided in this application embodiment has a connecting flange 15 provided at the third incident end 1111, and the connecting flange 15 is used to connect to the laser device 4 of the emitting light source, so the connection is more convenient and reliable.

[0067] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides an optical device 1, which further includes an optical fiber bundle collection module 16. The optical fiber bundle collection module 16 includes an optical fiber bundle collection end 161 and an optical fiber bundle transmission end 162. The optical fiber bundle collection end 161 is used to collect the light signal that is excited and collected after the light source irradiates the sample. The optical fiber bundle collection end 161 is fixed inside the optical path excitation and collection module 12. The optical fiber bundle transmission end 162 extends through the optical path excitation and collection module 12 to the outside of the optical device 1.

[0068] In this embodiment of the application, the fiber bundle is a structure of one or more fiber cores.

[0069] In this embodiment, the fiber optic bundle transmission end 162 extends through at least the optical path excitation and collection module 12 to the outside of the optical device 1. Here, the fiber optic bundle transmission end 162 may extend only through the optical path excitation and collection module 12 to the outside of the optical device 1; alternatively, the fiber optic bundle transmission end 162 may extend through not only the optical path excitation and collection module 12 but also the optical path transmission module 11 to the outside of the optical device 1. This embodiment does not impose any limitations on this. In one possible implementation provided by this embodiment, the fiber optic bundle transmission end 162 passes through both the optical path excitation and collection module 12 and the optical path transmission module 11. Furthermore, if the optical path transmission module 11 includes a third incident end 1111, and the third incident end 1111 is provided with a connecting flange 15 for connection to the laser device 4 of the emitting light source, and a fiber optic bundle through-hole 153 can be formed on the connecting flange 15, the fiber optic bundle transmission end 162 passes through the optical path excitation and collection module 12 and the optical path transmission module 11, and then extends to the outside of the optical device 1 through the fiber optic bundle through-hole 153 of the connecting flange 15.

[0070] The optical device 1 provided in this application embodiment is equipped with an optical fiber bundle collection module 16. The optical fiber bundle collection end 161 is used to collect the light signal excited and collected after the light source irradiates the sample. The internal optical coupling adjustment is completed in advance. Then, the optical fiber bundle transmission end 162 passes through the optical path excitation and collection module 12 and extends to the outside of the optical device 1. This makes the connection between the optical fiber collection module extending to the outside of the optical device 1 and the spectrometer simpler and more convenient, and at the same time greatly reduces the spatial structure requirements of the optical system.

[0071] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides an optical device 1, which further includes an auxiliary connection structure 17. The optical path excitation and collection module 12 also includes a third emission end 122. The auxiliary connection structure 17 is disposed at the third emission end 122 and is used to connect an auxiliary pendant.

[0072] In this embodiment, the third emitting end 122 may also be provided with a sealed optical window 18, through which the user can observe the internal state of the optical path excitation and collection module 12.

[0073] In this embodiment, the auxiliary connection structure 17 can be a threaded connection structure; the auxiliary connection structure 17 can also be a snap-fit ​​structure; the auxiliary connection structure 17 can also be a magnetic attraction structure; this embodiment does not limit the specific implementation. In one possible implementation provided by this embodiment, the auxiliary connection structure 17 is a magnetic attraction structure, specifically, it can be a magnet provided at the third emission end 122, which attracts the auxiliary hanging part.

[0074] The optical device 1 provided in this application embodiment has an auxiliary connection structure 17 provided at the third emission end 122 for connecting auxiliary hangers, which can further expand the function of the optical device 1.

[0075] Reference Figure 5 In addition, this application embodiment also provides an optical system, which includes a housing 2, a sample stage 3, an optical device 1, a laser device 4, a spectrometer device 5, and a control device 6 provided in this application embodiment. The sample stage 3 is placed inside the housing 2 and is used to place samples. The optical device 1 is located inside the housing 2, the laser device 4 is located outside the housing 2 and is used to emit a light source for the optical transmission module of the optical device 1. The spectrometer device 5 is located outside the housing 2 and is used to receive the light signal excited and collected by the optical path excitation and collection module 12 in the optical device 1. The control device 6 is connected to the sample stage 3, the laser device 4, and the spectrometer device 5 respectively.

[0076] The optical system provided in this application simplifies the installation and operation inside the glove box by placing only the optical device 1 and the sample stage 3 inside the box 2, while placing the complex laser device 4, spectrometer device 5 and control device 6 outside the box 2, so as to make maintenance convenient and quick during later use.

[0077] Reference Figure 5 This application provides an optical system in which the control device 6 is connected to the sample stage 3, the laser device 4, and the spectrometer device 5 via cables.

[0078] Specifically, a connecting flange 15 is fixed on the housing 2. The connecting flange 15 has high-precision mechanical shaft hole positioning structures and mounting screw holes on both sides. A cable flange is also fixed on the housing 2. The cable flange adopts a sealed design to isolate the environment inside the housing 2. The laser beam of the laser device 4 is precisely perpendicular to the third incident end 1111 of the optical device 1. The light output surface of the laser device 4 is connected to the outer side of the connecting flange 15. Precise positioning is achieved through a high-precision shaft hole positioning mechanism on the mounting mating surface. High-precision mechanical installation can be achieved by fixing the threads. The optical device 1 contains a reflector, which is a 45-degree semi-transparent and semi-reflective mirror. This reflector reflects the laser emitted by the laser device 4 and transmits other light waves to redirect the laser beam. The optical device 1 also contains a fiber optic bundle collection module 16 to couple the optical signal into the fiber optic bundle collection end 161, and then to the fiber optic bundle transmission end 162. The flange 15 extends out of the housing 2 and connects directly to the spectrometer device 5. The optical device 1 has an optically transparent window to isolate the environment inside the housing 2 from both the optical device 1 and the environment outside the housing 2. The sample stage 3 is placed inside the housing 2 and requires no additional installation; simply align the center of the sample stage 3's work surface with the laser's optical axis. The control device 6 is connected to the sample stage 3 via a cable using electronic wiring. The control device 6 controls this cable within the housing 2 by simply plugging it in and manually tightening the screws. When the control module includes a controller module and a computer control module 61, the spectrometer module, computer control module 61, and controller module are interconnected. There is no strict mechanical installation required; only cable connections are needed. A dedicated motion control card is installed inside the main unit of the computer control module 61. The controller module connects to the motion control card inside the main unit via a cable. The laser device 4 connects to the USB port of the main unit of the computer control module 61 via a cable. The spectrometer device 5 connects to the USB port of the main unit of the computer module via a cable, and the spectrometer device 5 connects to the trigger port of the laser device 4. The software on the computer control module 61 sends motion commands to the controller module, which converts the commands into drive signals and transmits them to the sample stage 3 via a cable connected to the sample stage 3, thus realizing the movement and focusing of the sample on the sample stage 3. The software issues a standby command to the laser device 4 and a spectral command to collect spectra via a cable connected to the spectrometer device 5. Upon receiving the command, the spectrometer device triggers the laser device 4 to emit a response pulsed laser beam via the cable connected to the laser device 4. The laser beam passes through the connecting flange 15, enters the optical device 1, and is focused on the sample surface on the sample stage 3. The sample generates plasma under the action of the pulsed laser. The plasma is transmitted to the outside of the housing 2 through the fiber bundle collection module 16 in the optical device 1 and is transmitted to the spectrometer device 5 to be converted into spectral data. The data is then transmitted to the software of the computer control module 61 via a cable connected to the computer control module 61 for calculation and analysis, completing one sample test.

[0079] The optical system provided in this application embodiment has cable connections between the control device 6 and the sample stage 3, the laser device 4, and the spectrometer device 5, respectively. This allows for the construction of a complete laser-induced breakdown spectroscopy system with only the connection of control cables and simple mechanical connections. Each module can be debugged outside the housing 2, and only modular assembly is required inside the housing 2. No further auxiliary operations or optical debugging are needed, thus achieving the characteristics of rapid installation, convenient maintenance, and easy use.

[0080] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An optical device, characterized in that, include: An optical path transmission module is used to receive a light source, and the optical path transmission module includes a first output end; An optical path excitation and collection module is used to excite and collect the light signal received by the optical path transmission module after the light source irradiates the sample. The optical path excitation and collection module includes a first incident end. The first connecting structure includes a first groove provided on one of the first emission end and the first incident end, a first protrusion provided on the other, a first through hole opened on the first emission end or the first incident end where the first groove is provided, and a first limiting member. Along the axial direction of the first through hole, the size of the first groove is larger than the size of the first protrusion. When the first protrusion is inserted into the first groove, the first limiting member abuts against the outer contour of the first protrusion through the first through hole to limit the displacement of the first protrusion in the first groove. The axial direction of the first through hole forms an angle with the insertion direction of the first protrusion and the first groove.

2. The optical device according to claim 1, characterized in that, At least a portion of the groove wall of the first groove is inclined at a first included angle toward the center of the first groove along a direction close to the first protrusion to form a first inclined groove wall, and at least a portion of the outer contour of the first protrusion is inclined at a second included angle toward the center of the first protrusion along a direction away from the first groove to form a first inclined outer contour. When the first protrusion is inserted into the first groove, the first inclined groove wall is adapted to the first inclined outer contour. The first included angle and the second included angle have the same degree measure.

3. The optical device according to claim 2, characterized in that, The first groove includes a first part of the groove wall and a second part of the groove wall distributed along a direction having an angle with the insertion direction. The first part of the groove wall forms the first inclined groove wall. The extension direction of the second part of the groove wall is parallel to the insertion direction to form a first parallel groove wall. The entire outer contour of the first protrusion forms a first inclined outer contour. When the first protrusion is inserted into the first groove, a portion of the first inclined outer contour is adapted to the first inclined groove wall.

4. The optical device according to claim 1, characterized in that, The inner wall of the first through hole is a threaded hole, and the outer contour of the first limiting member is provided with a first thread, and the first limiting member is adapted to the thread of the first through hole.

5. The optical device according to claim 1, characterized in that, The optical path transmission module includes a first optical path transmission component, a second optical path transmission component, and a steering component. The first optical path transmission component includes a second emitting end, and the second optical path transmission component includes a second incident end and a first emitting end. The second incident end and the first emitting end are located in different directions. The steering component is used to turn the light source of the second incident end towards the first emitting end. The optical device also includes a second connecting structure. The second connecting structure includes a second groove provided on one of the second emitting end and the second incident end, a second protrusion provided on the other, a second through hole opened on the second emitting end or the second incident end where the second groove is provided, and a second limiting component. Along the axial direction of the second through hole, the size of the second groove is larger than the size of the second protrusion. When the second protrusion is inserted into the second groove, the second limiting component abuts against the outer contour of the second protrusion through the second through hole to limit the displacement of the second protrusion in the second groove. The axial direction of the second through hole forms an angle with the insertion direction of the second protrusion and the second groove.

6. The optical device according to claim 5, characterized in that, The optical path transmission module includes a third incident end, which is provided with a connecting flange for connecting to the laser device of the emitting light source.

7. The optical device according to any one of claims 1 to 6, characterized in that, The optical device further includes an optical fiber bundle collection module, which includes an optical fiber bundle collection end and an optical fiber bundle transmission end. The optical fiber bundle collection end is used to collect the light signal that is excited and collected after the light source irradiates the sample. The optical fiber bundle collection end is fixed inside the optical path collection and excitation module, and the optical fiber bundle transmission end extends through the optical path excitation and collection module to the outside of the optical device.

8. The optical device according to any one of claims 1 to 6, characterized in that, The optical device further includes an auxiliary connection structure, and the optical path excitation and collection module further includes a third emission end. The auxiliary connection structure is disposed at the third emission end and is used to connect an auxiliary pendant.

9. An optical system, characterized in that, include: Box; A sample stage is placed inside the box and is used to place samples. The optical device according to any one of claims 1 to 8 is located inside the housing; A laser device is located outside the housing, and the laser device is used to emit a light source for the optical transmission module of the optical device. A spectrometer device is located outside the housing, and the spectrometer device is used to receive the light signal excited and collected by the optical path excitation and collection module in the optical device; A control device is connected to the sample stage, the laser device, and the spectrometer device, respectively.

10. The optical system according to claim 9, characterized in that, The control device is connected to the sample stage, laser device, and spectrometer device via cables.

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