A light source device integrating a coaxial light source and an arcuate light source

Abstract

The application discloses a light source device integrating a coaxial light source and an arc-shaped light source, comprising the coaxial light source and the arc-shaped light source, wherein the coaxial light source comprises a box body, a first light source assembly and a light splitter, the first light source assembly and the light splitter are arranged in the box body, the light splitter is arranged obliquely on a light path of the first light source assembly, is used for reflecting light emitted by the first light source assembly to a light outlet, and allows imaging light returned from the light outlet to be transmitted to a detection port; the arc-shaped light source comprises a shell, an arc-shaped diffusion plate and two second light source assemblies, the shell is connected to the box body, has a mounting cavity, and has a detection window and a light outlet window communicating with the mounting cavity, the arc-shaped diffusion plate and the two second light source assemblies are arranged in the mounting cavity; the two second light source assemblies are respectively located at opposite sides of the arc-shaped diffusion plate along a length direction of the arc-shaped diffusion plate, and light outlet directions are arranged towards an inner side surface of the arc-shaped diffusion plate; the application has low cost and simple installation.

Description

Technical Field

[0001] This utility model relates to the field of light source detection device technology, and in particular to a light source device that integrates a coaxial light source and an arched light source. Background Technology

[0002] In the field of machine vision inspection, for precision workpieces with mirror-like reflective properties, complex curved surfaces, or both two-dimensional and three-dimensional features (such as mobile phone frames, cosmetic bottle caps, and car logos), a single lighting method is insufficient to achieve comprehensive and accurate inspection.

[0003] In existing technologies, some manufacturers use a combination of coaxial and arched light sources. However, the arched light source in this combination typically uses a curved LED circuit board as the light source. This structure has significant limitations: the curved LED circuit board is expensive and has a fixed shape and size, resulting in a bulky and costly arched light source module that is difficult to expand to meet the inspection needs of large-sized workpieces. Utility Model Content

[0004] This application provides a light source device that integrates a coaxial light source and an arched light source. It is low in cost and easy to install. By splicing the second light source component with the arc-shaped diffuser plate, the size of the light source can be flexibly expanded to meet the detection needs of workpieces of different sizes.

[0005] This application provides a light source device integrating a coaxial light source and an arched light source, including a coaxial light source and an arched light source. The coaxial light source includes a housing, a first light source assembly, and a beam splitter. The housing has a receiving cavity and a light outlet and a detection port communicating with the receiving cavity. The first light source assembly and the beam splitter are disposed within the receiving cavity. The beam splitter is obliquely disposed in the light emission path of the first light source assembly to reflect the light emitted by the first light source assembly to the light outlet and allow the imaging light returning from the light outlet to be transmitted to the detection port. The arched light source includes a housing and an arc shape. The device includes a diffuser plate and two second light source assemblies. The housing is connected to the box body and has a mounting cavity and a detection window and a light emission window communicating with the mounting cavity. The arc-shaped diffuser plate and the two second light source assemblies are all disposed within the mounting cavity. The two second light source assemblies are respectively located on opposite sides of the bottom end of the arc-shaped diffuser plate along its length, and the light emission direction is arranged towards the inner side of the arc-shaped diffuser plate. The arc-shaped diffuser plate is provided with a light transmission port, and the central axes of the detection port, the light emission port, the detection window, the light transmission port, and the light emission window are collinear.

[0006] In some embodiments, the second light source component is a planar light source, and the light emission direction is arranged parallel to the central axis.

[0007] In some embodiments, two second light source components are symmetrically arranged on opposite sides of the central axis.

[0008] In some embodiments, the light-transmitting aperture is located at the center of the arc-shaped diffuser in the circumferential direction.

[0009] In some embodiments, the arc-shaped diffuser plate includes a light-transmitting substrate and light-diffusing particles embedded in the light-transmitting substrate;

[0010] And / or, the surface of the arc-shaped diffuser plate is formed with microstructures for light diffusion.

[0011] In some embodiments, the housing includes a first top plate, two first side plates, two first end caps and a bottom plate that together enclose the receiving cavity (110a). The first top plate is provided with the detection port, and the bottom plate is connected to the bottom of the first side plates and the first end caps, and together enclose the light outlet.

[0012] In some embodiments, the coaxial light source further includes a planar diffuser plate disposed in the optical path between the first light source assembly and the beam splitter;

[0013] In some embodiments, the coaxial light source further includes a glass cover plate connected to the housing and sealing the detection port, wherein at least one optical surface of the glass cover plate is coated with an anti-reflection film.

[0014] In some embodiments, the light source device integrating the coaxial light source and the arched light source is configured as a linear light source extending along the length direction, and the detection port, the light output port, the detection window, the light transmission port, and the light output window are all rectangular.

[0015] In some embodiments, the first light source assembly includes a first light source element and a plurality of first signal lines signal-connected to the first light source element. The first light source element includes a plurality of illumination zones spaced apart along its length direction, and each illumination zone is configured to be independently controlled by a first signal line.

[0016] In some embodiments, the second light source assembly includes a mounting base and a second light source element mounted on the mounting base. The mounting base has first mounting holes at both ends along its length, and the housing has corresponding second mounting holes. Fasteners pass through the first mounting holes and the second mounting holes to fix the mounting base to the housing.

[0017] In some embodiments, the housing includes a second top plate, two second side plates, and two second end caps. The detection window is provided on the second top plate, and the two second side plates and the two second end caps together define the detection window.

[0018] Both of the second end caps are provided with the second mounting hole.

[0019] Based on the light source device integrating a coaxial light source and an arched light source according to the embodiments of this application, the second light source component of the arched light source adopts a planar light source form (such as a strip LED circuit board) and is horizontally arranged on both sides of the bottom of the arc-shaped diffuser plate. Compared with the traditional arched light source using an integral arc-shaped LED light source board, this design, through the combination of "planar light source + arc-shaped diffuser plate", has the following advantages while ensuring the uniformity and coverage of the light field: First, the planar light source has a simple structure and is easy to process, effectively reducing material costs and the overall module weight; Second, by splicing multiple strip light source modules with arc-shaped diffuser plates, it is possible to flexibly construct ultra-large-sized arched light source devices to meet the inspection needs of large-sized workpieces such as automobile door panels and large glass covers, and realize the on-demand customization and flexible expansion of light source size. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a light source device integrating a coaxial light source and an arched light source, provided for an embodiment of this application;

[0022] Figure 2 A cross-sectional schematic diagram of a light source device integrating a coaxial light source and an arched light source, provided for an embodiment of this application;

[0023] Figure 3 A schematic diagram of the light path of a light source device integrating a coaxial light source and an arched light source, provided for an embodiment of this application;

[0024] Figure 4 An exploded view of a coaxial light source provided in an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the structure of an arched light source provided in an embodiment of this application;

[0026] Figure 6This is an exploded view of an arched light source provided in an embodiment of this application.

[0027] Explanation of icon numbers:

[0028] 1. A light source device integrating a coaxial light source and an arched light source; 10. Coaxial light source; 110. Housing; 110a. Receiving cavity; 110b. Detection port; 110c. Light outlet; 111. First top plate; 112. First side plate; 113. First end cap; 2131. Second mounting hole; 114. Base plate; 120. First light source assembly; 121. First light source component; 122. First signal line; 130. Beam splitter; 140. Planar diffuser plate; 160. Glass cover plate; 20. Arched light source; 210. Housing; 210a. Mounting cavity; 210b. Detection window; 210c. Light emission window; 211. Second top plate; 212. Second side plate; 213. Second end cap; 220. Arc-shaped diffuser plate; 221. Light transmission port; 230. Second light source assembly; 231. Mounting base; 2311. First mounting hole; 232. Second light source element; 233. Second signal line; (XX), length direction; (YY), width direction; (ZZ), height direction; (O-O'), central axis.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained with reference to the accompanying drawings and embodiments. Detailed Implementation

[0030] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0031] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0032] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Please see Figure 1 and Figure 2 This application provides a light source device 1 that integrates a coaxial light source and an arched light source, including a coaxial light source 10 and an arched light source 20.

[0035] For ease of description, the light source device 1 integrating a coaxial light source and an arched light source is defined to have two mutually perpendicular length directions (XX), width directions (YY), and height directions (ZZ), as follows: Figure 1 , Figure 2 , Figure 4 as well as Figure 6 As shown.

[0036] Please see Figure 2 The coaxial light source 10 includes a housing 110, a first light source assembly 120, and a beam splitter 130. The housing 110 has a cavity 110a inside, and a light outlet 110c and a detection port 110b communicating with the cavity 110a. Both the first light source assembly 120 and the beam splitter 130 are disposed within the cavity 110a. The beam splitter 130 is tilted relative to the light emission path of the first light source assembly 120, possibly at a 45° angle. Its function is to reflect the light emitted from the first light source assembly 120 towards the light outlet 110c, while allowing the imaging light returning from the light outlet 110c to be transmitted to the detection port 110b for reception by imaging devices such as cameras at the detection port 110b. The first light source assembly 120 is a planar light source, specifically an LED circuit board.

[0037] Please see Figure 2 and Figure 4 In some embodiments, the coaxial light source 10 further includes a planar diffuser plate 140, which is disposed in the optical path between the first light source assembly 120 and the beam splitter 130, and is used to homogenize the light emitted by the first light source assembly 120.

[0038] Please continue reading. Figure 2 and Figure 4 In some embodiments, the coaxial light source 10 further includes a glass cover plate 160, which is connected to the housing 110 and covers the detection port 110b. At least one optical surface of the glass cover plate 160 is coated with an antireflection film, which may be made of magnesium fluoride material, for example, to reduce interface reflection and improve light transmittance.

[0039] Please see Figure 2 , Figure 5 as well as Figure 6 The arched light source 20 includes a housing 210, an arc-shaped diffuser plate 220, and two second light source assemblies 230. The housing 210 is connected to the side of the enclosure 110 where the light outlet 110c is provided, that is, the bottom end of the enclosure 110. The housing 210 has a mounting cavity 210a inside, and has a detection window 210b and a light outlet window 210c communicating with the mounting cavity 210a. The arc-shaped diffuser plate 220 and the two second light source assemblies 230 are both disposed in the mounting cavity 210a; the two second light source assemblies 230 are planar light sources and are respectively located on opposite sides of the bottom end of the arc-shaped diffuser plate 220 along its length direction, and the light emission direction is set towards the inner side of the arc-shaped diffuser plate 220; wherein, the arc-shaped diffuser plate 220 is provided with a light transmission port 221, and the central axis (i.e. along the axis O-O') of the detection port 110b, the light emission port 110c, the detection window 210b, the light transmission port 221, and the light emission window 210c are collinear.

[0040] Based on the above structure, please refer to the following: Figure 3 The illumination and imaging optical path is as follows: the light emitted by the first light source assembly 120 is reflected by the beam splitter 130 and then emitted outward through the light outlet 110c, the detection window 210b, the light transmission port 221, and the light outlet 210c, illuminating the object under test; the light emitted by the second light source assembly 230 is projected onto the inner side of the arc-shaped diffuser plate 220, and after reflection and diffusion, a uniform diffused light field is formed, which is emitted through the light outlet 210c and illuminates the object under test; the imaging light reflected by the object under test follows the opposite path, passing through the light outlet 210c, the light transmission port 221, the detection window 210b, and the light outlet 110c into the housing 110, and finally reaches the imaging device at the detection port 110b through the beam splitter 130, completing the image acquisition.

[0041] Based on the light source device 1 integrating a coaxial light source and an arched light source according to the embodiments of this application, the second light source component 230 of the arched light source 20 adopts a planar light source form (such as a strip LED light source board) and is horizontally arranged on both sides of the bottom of the arc-shaped diffuser plate 220. Compared with the traditional arched light source 20 using an integral arc-shaped LED light source board, this design, through the combination of "planar light source + arc-shaped diffuser plate 220", has the following advantages while ensuring the uniformity and coverage of the light field: First, the planar light source has a simple structure and is easy to process, effectively reducing material costs and the overall module weight; Second, the second light source component 230 can include multiple sets of strip LED light source boards spaced apart along the length direction. By splicing the strip LED light source boards with the arc-shaped diffuser plate 220 segments, it is possible to flexibly construct an ultra-large-sized arched light source 20 system to meet the inspection needs of large-sized workpieces such as automobile door panels and large glass cover plates 160, and realize the on-demand customization and flexible expansion of the light source size.

[0042] This embodiment integrates coaxial illumination with shadowless, soft arched illumination into the same optical path system, enabling flexible switching and collaborative operation of multiple illumination modes. Users can independently activate the coaxial light source 10 or the arched light source 20, or simultaneously activate both to achieve a combined illumination effect, depending on the characteristics of the workpiece and the detection target. Coaxial light mode: The light emitted by the first light source assembly 120 is reflected by the beam splitter 130 and illuminates the workpiece surface in a nearly perpendicular direction, effectively enhancing the contrast of two-dimensional surface defects such as scratches, dents, and foreign objects, suitable for high-precision planar feature detection. Arched light mode: The beams emitted by the two second light source assemblies 230 are directed from both sides towards the inner surface of the arc-shaped diffuser plate 220, and after uniform diffuse reflection, form an enveloping dome-shaped illumination field above the workpiece. This light field can cover the workpiece surface from multiple angles, significantly suppressing specular reflection and clearly presenting three-dimensional contours and morphological information. Hybrid Light Mode: Combining the two light fields mentioned above allows for the simultaneous capture of both the microscopic surface features and macroscopic three-dimensional morphology of a workpiece in a single imaging session. This enables the detection of complex structural workpieces (such as components with textures, curved surfaces, or sharp edges), thereby significantly improving detection efficiency and defect recognition rate. The integrated coaxial and arched light source device 1 is suitable for workpieces with highly reflective properties, such as mobile phone frames, car logos, metal casings, and cosmetic bottle caps. The arched light source 20 eliminates localized reflective interference, providing a uniform background light field. Furthermore, the coaxial light source 10 can further highlight subtle surface defects that are difficult to detect even under diffused light conditions, enhancing the comprehensiveness and reliability of the detection.

[0043] Please see Figure 3In some embodiments, the light emission direction of the second light source component 230 is upward and parallel to the central axis O-O'. That is, this arrangement of the light emission direction of the second light source component 230 can make the light emitted by the second light source component 230 mainly point to the arc-shaped diffuser plate 220, thereby reducing the chance of light directly hitting the light port 221 or the light emission window 210c and causing stray light. This helps to reduce the interference of stray light on the imaging optical path formed by the coaxial light source 10 and improve the imaging quality.

[0044] Please see Figure 3 In some embodiments, two second light source assemblies 230 are symmetrically arranged on opposite sides of the central axis. This configuration is designed to provide balanced light input from both sides of the arc-shaped diffuser 220, thereby ensuring uniform light output from the arched light source 20.

[0045] Please see Figure 3 In some embodiments, the light-transmitting port 221 is located in the center of the arc-shaped diffuser plate 220 along its circumference, that is, the light-transmitting port 221 is positioned at the center of the arc-shaped diffuser plate 220. This ensures that the emitted light field of the coaxial light source 10 is spatially collimated with the diffused light field of the arched light source 20, facilitating the integration of the optical path for composite lighting.

[0046] In some embodiments, the arc-shaped diffuser plate 220 includes a light-transmitting substrate and light-diffusing particles embedded within the substrate. These light-diffusing particles can be silica gel powder, titanium dioxide powder, zinc oxide powder, aluminum oxide powder, etc. In the manufacturing process, the light-diffusing particles can be mixed into the light-transmitting substrate material before injection molding, and the arc-shaped diffuser plate 220 can be integrally injection molded. The light-diffusing particles enhance the scattering of light within the light-transmitting substrate, thereby making the emitted light field softer and more uniform.

[0047] In some embodiments, the surface of the arc-shaped diffuser plate 220 is formed with microstructures for light diffusion. These microstructures include, but are not limited to, microlens arrays, prism structures, or roughened surfaces formed by sandblasting or etching. The microstructures can alter the exit angle of light, thereby redistributing light intensity in space and improving illumination uniformity.

[0048] Please refer to the following: Figure 1 and Figure 2In some embodiments, the light source device 1 integrating the coaxial light source and the arched light source is configured as a linear light source extending along the length direction (XX). The centers of the detection port 110b, the light exit port 110c, the detection window 210b, the light transmission port 221, and the light exit window 210c are aligned in the height direction (ZZ), and their central axes (O-O') are collinear along the height direction (ZZ), thereby forming a continuous, unbiased core optical path. Furthermore, these openings are all constructed as rectangular openings of substantially uniform size, which are adapted to the extension shape of the linear light source.

[0049] Please see Figure 2 as well as Figure 4 The enclosure 110 specifically includes a first top plate 111, two first side plates 112, two first end caps 113, and a bottom plate 114. A detection port 110b is located on the first top plate 111. The two first side plates 112 are perpendicularly connected to opposite sides of the first top plate 111 along the width direction (YY), and the two first end caps 113 are perpendicularly connected to opposite sides of the first top plate 111 along the length direction (XX). The bottom plate 114 is connected to the bottom of the first side plates 112 and the first end caps 113, and together they enclose the light outlet 110c. This enclosed box-shaped structure of the enclosure 110 provides reliable protection for the internal optical components and effectively isolates external stray light.

[0050] It should be noted that the panels of the aforementioned housing 110 can be installed and fixed by means of screw connection, snap-fit ​​connection, welding connection, etc.

[0051] Please see Figure 4 In some embodiments, the first light source assembly 120 includes a first light source element 121 and a plurality of first signal lines 122 connected thereto. The first light source element 121 is divided into a plurality of illumination zones spaced apart along its length direction (XX), and each illumination zone can be controlled by an independent first signal line 122. This design of independent zone control allows users to selectively illuminate specific sections according to the actual size of the object being measured and the detection requirements, thereby achieving precise on-demand illumination, which helps to save energy and reduce unnecessary heat accumulation.

[0052] Please see Figure 2 as well as Figure 6The housing 210 specifically includes a second top plate 211, two second side plates 212, and two second end caps 213. The two second side plates 212 are perpendicularly connected to opposite sides of the second top plate 211 along the width direction (YY), and the two second end caps 213 are perpendicularly connected to opposite sides of the second top plate 211 along the length direction (XX), thus forming a rectangular housing structure with a bottom opening. The light-emitting window 210c is formed by this bottom opening. The detection window 210b is located at the geometric center of the second top plate 211 along its length and width directions. This symmetrical and modular housing 210 structure not only has high mechanical stability but also facilitates processing and assembly. The inner surfaces of the two second end caps 213 can be provided with arc-shaped fixing grooves corresponding to the arc-shaped diffuser plate 220. The opposite ends of the arc-shaped diffuser plate 220 are inserted into the arc-shaped fixing grooves to achieve fixation with the housing 210.

[0053] It should be noted that the shell 210 can be installed and fixed by means of screw connection, snap-fit ​​connection, welding connection, etc. Furthermore, the housing 110 can be fixed to the second top plate 211 via the base plate 114, thereby fixing the coaxial light source 10 as a whole to the top of the arched light source 20. Optionally, the upper surface of the second top plate 211 can be provided with a mounting groove that conforms to the outer contour of the base plate 114. The base plate 114 is installed in the mounting groove, which can improve the stability of the installation and also achieve positioning, improving the alignment accuracy of the multiple openings.

[0054] Please see Figure 6 In some embodiments, the second light source assembly 230 includes a mounting base 231, a second light source element 232, and a second signal line 233. The second light source element 232 is mounted on the mounting base 231 and is signal-connected to the second signal line 233. The second light source element 232 can be an LED circuit board. The mounting base 231 has first mounting holes 2311 at both ends along its length (XX), and the two second end caps 213 of the housing 210 have corresponding second mounting holes 2131. Fasteners pass through the first mounting holes 2311 and the second mounting holes 2131, thereby fixing the mounting base 231 into the mounting cavity 210 of the housing 210.

[0055] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A light source device (1) integrating a coaxial light source and an arched light source, characterized in that, include: A coaxial light source (10) includes a housing (110), a first light source assembly (120), and a beam splitter (130). The housing (110) has a receiving cavity (110a) and a detection port (110b) and a light output port (110c) communicating with the receiving cavity (110a). The first light source assembly (120) and the beam splitter (130) are disposed within the receiving cavity (110a). The beam splitter (130) is tilted along the light emission path of the first light source assembly (120) to reflect the light emitted by the first light source assembly (120) to the light output port (110c) and to allow the imaging light returning from the light output port (110c) to be transmitted to the detection port (110b). An arched light source (20) includes a housing (210), an arc-shaped diffuser plate (220), and two second light source assemblies (230). The housing (210) is connected to the box (110) and has a mounting cavity (210a) and a detection window (210b) and a light emission window (210c) communicating with the mounting cavity (210a). The arc-shaped diffuser plate (220) and the two second light source assemblies (230) are all disposed in the mounting cavity (210a). The two second light source assemblies (230) are respectively located on opposite sides of the bottom end of the arc-shaped diffuser plate (220) along its length direction, and the light emission direction is disposed towards the inner side of the arc-shaped diffuser plate (220). The arc-shaped diffuser plate (220) is provided with a light-transmitting port (221), and the central axes of the detection port (110b), the light-emitting port (110c), the detection window (210b), the light-transmitting port (221), and the light-emitting window (210c) are arranged in a collinear manner.

2. The light source device (1) integrating a coaxial light source and an arched light source as described in claim 1, characterized in that, The second light source component (230) is a planar light source, and the light emission direction is set parallel to the central axis.

3. The light source device (1) integrating a coaxial light source and an arched light source as described in claim 1, characterized in that, Two second light source components (230) are symmetrically arranged on opposite sides of the central axis.

4. The light source device (1) integrating a coaxial light source and an arched light source as described in claim 1, characterized in that, In the circumferential direction of the arc-shaped diffuser plate (220), the light-transmitting port (221) is located in the middle of the arc-shaped diffuser plate (220).

5. The light source device (1) integrating a coaxial light source and an arched light source as described in claim 1, characterized in that, The arc-shaped diffuser plate (220) includes a light-transmitting substrate and light-diffusing particles embedded in the light-transmitting substrate; And / or, the surface of the arc-shaped diffuser plate (220) is formed with microstructures for light diffusion.

6. The light source device (1) integrating a coaxial light source and an arched light source as described in any one of claims 1 to 5, characterized in that, The housing (110) includes a first top plate (111), two first side plates (112), two first end caps (113), and a bottom plate (114) that together enclose the receiving cavity (110a). The first top plate (111) is provided with the detection port (110b). The bottom plate (114) is connected to the bottom of the first side plates and the first end caps, and together they enclose the light outlet (110c). And / or, the coaxial light source (10) further includes a planar diffuser plate (140), which is disposed in the optical path between the first light source assembly (120) and the beam splitter (130); And / or, the coaxial light source (10) further includes a glass cover plate (160), which is connected to the housing (110) and covers the detection port (110b), and at least one optical surface of the glass cover plate (160) is coated with an anti-reflection film.

7. The light source device (1) integrating a coaxial light source and an arched light source as described in any one of claims 1 to 5, characterized in that, The light source device (1) integrating the coaxial light source and the arched light source is configured as a linear light source extending along the length direction. The detection port (110b), the light output port (110c), the detection window (210b), the light transmission port (221), and the light output window (210c) are all rectangular.

8. The light source device (1) integrating a coaxial light source and an arched light source as described in claim 7, characterized in that, The first light source assembly (120) includes a first light source element (121) and a plurality of first signal lines (122) that are signal connected to the first light source element (121). The first light source element (121) is divided into a plurality of illumination zones spaced apart along its length direction, and each illumination zone is configured to be independently controlled by a first signal line (122).

9. The light source device (1) integrating a coaxial light source and an arched light source as described in any one of claims 1 to 5, characterized in that, The second light source assembly (230) includes a mounting base (231) and a second light source element (232) mounted on the mounting base (231); The mounting base (231) is provided with a first mounting hole (2311) at both ends along the length direction, and the housing (210) is provided with a corresponding second mounting hole (2131). Fasteners are inserted through the first mounting hole (2311) and the second mounting hole (2131) to fix the mounting base (231) to the housing (210).

10. The light source device (1) integrating a coaxial light source and an arched light source as described in claim 9, characterized in that, The housing (210) is in the form of a cover with an opening at the bottom, and includes a second top plate (211), two second side plates (212) and two second end caps (213) that together enclose the mounting cavity (210a). The detection window (210b) is provided on the second top plate (211), and the two second side plates (212) and the two second end caps (213) together define the light emission window (210c). Both of the second end caps (213) are provided with the second mounting hole (2131).

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