Combined light source device of coaxial light source and annular light source and detection system

By introducing an annular light source module into the coaxial light source device for filling light, the problem that the coaxial light source cannot fully cover the edge of the workpiece is solved, which significantly improves the brightness and imaging effect of the workpiece edge, and improves the accuracy of detection.

CN222895052UActive Publication Date: 2025-05-23GUANGDONG AOPUTE TECH CO LTD
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Patent Information

Application Number
CN202421846450.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-05-23
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

The light emitting surface of the existing coaxial light source device cannot fully cover the workpiece, resulting in low brightness of the edge of the workpiece and poor imaging effects, which affects the accuracy of the detection results.

Method used

A combined light source device of a coaxial light source and annular light source is designed. By installing a ring light source module on the periphery of the second light-transmitting window of the coaxial light source module, the ring light source module is used to fill up light to improve the edge brightness of the workpiece.

Benefits of technology

It effectively improves the edge brightness of the workpiece, improves the imaging effect, and improves the accuracy of detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model discloses a combined light source device of a coaxial light source and an annular light source and a detection system, which are used for solving the technical problem that the light emitting surface of the existing coaxial light source device cannot cover a workpiece, so that the brightness of the edge of the workpiece is lower, and the image effect is poor. The embodiment of the utility model comprises a coaxial light source module and an annular light source module, the coaxial light source module comprises a first outer shell and a first luminous body; the first luminous body is arranged inside the first outer shell, a first light-transmitting window and a second light-transmitting window are formed in a first surface and a second surface, which are oppositely arranged, of the first outer shell respectively, and the first light-transmitting window and the second light-transmitting window are coaxially arranged; the annular light source module is fixed to the second surface of the first outer shell and located on the periphery of the second light-transmitting window, and the central axis of the annular light source module coincides with the central axis of the second light-transmitting window.
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Description

Technical Field

[0001] The utility model relates to the technical field of light source design, in particular to a combined light source device of a coaxial light source and an annular light source and a detection system. Background Art

[0002] In the prior art, workpiece inspection is generally completed by a visual inspection system, wherein the visual inspection system includes a light source device, an inspection camera and a lens. There are many types of light source devices, and inspectors will use a suitable type of light source device according to the inspection requirements of the workpiece.

[0003] At present, when using a coaxial light source device to inspect workpieces, the light-emitting surface of the coaxial light source device cannot completely cover the workpiece, resulting in the edge of the workpiece not being bright enough, which in turn causes the image around the workpiece to be darker and the imaging effect is not ideal, which undoubtedly has a great impact on the accuracy of the inspection results.

[0004] Therefore, finding a technical solution that can solve the above technical problems has become an important topic studied by technical personnel in this field. Utility Model Content

[0005] The utility model discloses a combined light source device of a coaxial light source and an annular light source and a detection system, which are used to solve the technical problem that the light emitting surface of the existing coaxial light source device cannot cover the workpiece, resulting in low brightness at the edge of the workpiece, thereby causing poor imaging effect.

[0006] The utility model provides a combined light source device of a coaxial light source and an annular light source, comprising a coaxial light source module and an annular light source module;

[0007] The coaxial light source module comprises a first outer shell and a first light-emitting body;

[0008] The first light-emitting body is arranged inside the first outer shell, and a first light-transmitting window and a second light-transmitting window are respectively provided on a first surface and a second surface of the first outer shell that are arranged opposite to each other, and the first light-transmitting window and the second light-transmitting window are arranged coaxially;

[0009] The annular light source module is fixed on the second surface of the first outer shell and is located at the periphery of the second light-transmitting window. The central axis of the annular light source module coincides with the central axis of the second light-transmitting window.

[0010] Optionally, the coaxial light source module further includes a beam splitter lens;

[0011] The beam splitter lens is installed in the first outer shell at a preset tilt angle, the first light emitter is located on one side of the beam splitter lens, and the beam splitter lens is used to reflect the light emitted by the first light emitter to the second light-transmitting window.

[0012] Optionally, the first light-emitting body is a PCB light board.

[0013] Optionally, the annular light source module includes a second light-emitting body and a second outer shell;

[0014] The second outer shell is a circular ring structure with a notch, and a third light-transmitting window of a ring structure is provided on a side of the second outer shell away from the first outer shell. The second light-emitting body is a light-emitting body that matches the shape of the second outer shell. The second light-emitting body is installed in the second outer shell, and the illumination direction of the second light-emitting body is set toward the third light-transmitting window.

[0015] Optionally, the second light-emitting body is a PCB light board.

[0016] Optionally, the annular light source module further includes a diffusion plate;

[0017] The diffusion plate is a diffusion plate that matches the shape of the second outer shell, and the diffusion plate is installed on the third light-transmitting window.

[0018] Optionally, the coaxial light source module further includes a first control line, one end of the first control line is connected to the first light-emitting body, and the other end of the first control line passes through the first outer shell.

[0019] Optionally, the annular light source module further includes a second control line, one end of the second control line is connected to the second light-emitting body, and the other end of the second control line passes through the second outer shell.

[0020] The embodiment of the utility model provides a detection system for detecting workpieces, which specifically includes a detection camera, a lens connected to the detection camera, and a combined light source device of the coaxial light source and the annular light source.

[0021] Optionally, the detection camera is located on one side of the first light-transmitting window of the combined light source device, and the second light-transmitting window of the combined light source device is arranged toward the workpiece.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In this embodiment, the coaxial light source module serves as the main lighting module, and the annular light source module is installed on the periphery of the second light-transmitting window of the coaxial light source module. When the coaxial light source module cannot form an illumination surface of sufficient range, the annular light source module can provide fill light for the workpiece to enhance the edge brightness of the workpiece, thereby improving the imaging effect of the workpiece and improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a light source device combining a coaxial light source and an annular light source provided in an embodiment of the utility model;

[0026] Figure 2 A schematic diagram showing a light source device combining a coaxial light source and an annular light source from another angle provided in an embodiment of the utility model;

[0027] Figure 3 It is a structural exploded diagram of a light source device combining a coaxial light source and an annular light source provided in an embodiment of the utility model;

[0028] Illustration: coaxial light source module 1; first light-transmitting window 101; second light-transmitting window 102; first control line 103; first outer shell 104; first light-emitting body 105; beam splitter lens 106; annular light source module 2; second control line 201; second outer shell 202; second light-emitting body 203; diffuser 204; detection camera 3; lens 4; workpiece 5. DETAILED DESCRIPTION

[0029] The utility model discloses a combined light source device of a coaxial light source and an annular light source and a detection system, which are used to solve the technical problem that the light emitting surface of the existing coaxial light source device cannot cover the workpiece, resulting in low brightness at the edge of the workpiece, thereby causing poor imaging effect.

[0030] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 3 , a combined light source device of a coaxial light source and an annular light source provided in an embodiment of the utility model comprises a coaxial light source module 1 and an annular light source module 2;

[0032] The coaxial light source module 1 includes a first outer shell 104 and a first light emitting body 105;

[0033] The first light-emitting body 105 is disposed inside the first outer shell 104. The first surface and the second surface of the first outer shell 104 are opposite to each other and respectively have a first light-transmitting window 101 and a second light-transmitting window 102. The first light-transmitting window 101 and the second light-transmitting window 102 are coaxially disposed.

[0034] The annular light source module 2 is fixed on the second surface of the first outer shell 104 and is located outside the second light-transmitting window 102 . The central axis of the annular light source module 2 coincides with the central axis of the second light-transmitting window 102 .

[0035] In this embodiment, the coaxial light source module 1 serves as the main lighting module, and the annular light source module 2 is installed on the periphery of the second light-transmitting window 102 of the coaxial light source module 1. When the coaxial light source module 1 cannot form an illumination surface of sufficient range, the annular light source module 2 can provide fill light for the workpiece 5 to enhance the edge brightness of the workpiece 5, thereby improving the imaging effect of the workpiece 5 and improving the accuracy of detection.

[0036] Furthermore, the coaxial light source module 1 in this embodiment further includes a beam splitter lens 106;

[0037] The beam splitter lens 106 is installed in the first outer shell 104 at a preset tilt angle, and the first light emitter 105 is located on one side of the beam splitter lens 106 .

[0038] It should be noted that the beam splitter lens 106 in this embodiment is used to reflect the light emitted by the first light emitting body 105 to the second light-transmitting window 102 .

[0039] Furthermore, the first light-emitting body 105 in this embodiment is a PCB light board.

[0040] Furthermore, the annular light source module 2 in this embodiment includes a second light emitting body 203 and a second outer shell 202;

[0041] The second outer shell 202 is a circular ring structure with a notch, and a third light-transmitting window of a ring structure is provided on a side of the second outer shell 202 away from the first outer shell 104. The second light-emitting body 203 is a light-emitting body that matches the shape of the second outer shell 202. The second light-emitting body 203 is installed in the second outer shell 202, and the illumination direction of the second light-emitting body 203 is set toward the third light-transmitting window.

[0042] It should be noted that, since the irradiated range is relatively large and while ensuring that the third light-transmitting window of the annular light source module 2 is large enough, the shape of the second outer shell 202 of the annular light source module 2 needs to be as large as possible.

[0043] Due to space limitations, when the annular light source module 2 is installed in the second light-transmitting window 102 of the coaxial light source module 1, the annular light source module 2 cannot protrude from the mounting surface of the coaxial light source module 1, that is, the outer side of the coaxial light source module 1. Therefore, the second outer shell 202 of the annular light source module 2 is specifically a circular ring structure with a notch. Through the above design, when the annular light source module 2 is combined with the coaxial light source module 1, the mounting surface of the coaxial light source module 1 is flat without protruding parts, thereby avoiding interference with the installation machine.

[0044] Furthermore, the second light-emitting body 203 is a PCB light board.

[0045] Furthermore, the annular light source module 2 in this embodiment further includes a diffusion plate 204;

[0046] The diffusion plate 204 is a diffusion plate 204 that matches the shape of the second outer shell 202 , and the diffusion plate 204 is installed on the third light-transmitting window.

[0047] It should be noted that the diffusion plate 204 in this embodiment is specifically used to make the light irradiated by the second light emitting body 203 onto the workpiece 5 more uniform.

[0048] Furthermore, the coaxial light source module 1 further includes a first control line 103 , one end of the first control line 103 is connected to the first light-emitting body 105 , and the other end of the first control line 103 passes through the first outer shell 104 .

[0049] It should be noted that the control device controls the turning on and off of the first light-emitting body 105 through the first control line 103 in this embodiment.

[0050] Furthermore, the annular light source module 2 in this embodiment further includes a second control line 201 , one end of the second control line 201 is connected to the second light-emitting body 203 , and the other end of the second control line 201 passes through the second outer shell 202 .

[0051] It should be noted that the control device controls the turning on and off of the second light-emitting body 203 through the second control line 201 in this embodiment.

[0052] See also Figures 1 to 3 A detection system provided in an embodiment of the utility model is used to detect a workpiece 5, including a detection camera 3, a lens 4 connected to the detection camera 3, and a combined light source device of the above-mentioned coaxial light source and annular light source.

[0053] Specifically, the detection camera 3 in this embodiment is located at one side of the first light-transmitting window 101 of the combined light source device, and the second light-transmitting window 102 of the combined light source device is arranged toward the workpiece 5 .

[0054] The above is a detailed introduction to a combined light source device and a detection system of a coaxial light source and an annular light source provided by the present invention. For a general technician in this field, according to the idea of ​​the embodiment of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A light source device combining a coaxial light source and an annular light source, characterized in that: It comprises a coaxial light source module (1) and a ring light source module (2); The coaxial light source module (1) comprises a first outer shell (104) and a first light-emitting body (105); The first light-emitting body (105) is arranged inside the first outer shell (104); a first light-transmitting window (101) and a second light-transmitting window (102) are respectively provided on a first surface and a second surface of the first outer shell (104) arranged opposite to each other; the first light-transmitting window (101) and the second light-transmitting window (102) are coaxially arranged; The annular light source module (2) is fixed on the second surface of the first outer shell (104) and is located outside the second light-transmitting window (102); the central axis of the annular light source module (2) coincides with the central axis of the second light-transmitting window (102).

2. The combined light source device of a coaxial light source and an annular light source according to claim 1, characterized in that: The coaxial light source module (1) further comprises a beam splitter lens (106); The beam splitter lens (106) is installed in the first outer shell (104) at a preset tilt angle, the first light-emitting body (105) is located on one side of the beam splitter lens (106), and the beam splitter lens (106) is used to reflect light emitted by the first light-emitting body (105) to the second light-transmitting window (102).

3. The combined light source device of a coaxial light source and an annular light source according to claim 1, characterized in that: The first light-emitting body (105) is a PCB light board.

4. The combined light source device of a coaxial light source and an annular light source according to claim 1, characterized in that: The annular light source module (2) comprises a second light emitting body (203) and a second outer shell (202); The second outer shell (202) is a circular ring-shaped structure with a notch; a third light-transmitting window of a ring-shaped structure is provided on a side of the second outer shell (202) away from the first outer shell (104); the second light-emitting body (203) is a light-emitting body matching the shape of the second outer shell (202); the second light-emitting body (203) is installed in the second outer shell (202), and the irradiation direction of the second light-emitting body (203) is arranged toward the third light-transmitting window.

5. The combined light source device of a coaxial light source and an annular light source according to claim 4, characterized in that: The second light emitting body (203) is a PCB light board.

6. The combined light source device of a coaxial light source and an annular light source according to claim 4, characterized in that: The annular light source module (2) further comprises a diffusion plate (204); The diffusion plate (204) is a diffusion plate (204) that matches the shape of the second outer shell (202), and the diffusion plate (204) is installed on the third light-transmitting window.

7. The combined light source device of a coaxial light source and an annular light source according to claim 1, characterized in that: The coaxial light source module (1) further comprises a first control line (103), one end of the first control line (103) being connected to the first light-emitting body (105), and the other end of the first control line (103) passing through the first outer shell (104).

8. The combined light source device of a coaxial light source and an annular light source according to claim 4, characterized in that: The annular light source module (2) further comprises a second control line (201), one end of the second control line (201) being connected to the second light-emitting body (203), and the other end of the second control line (201) passing through the second outer shell (202).

9. A detection system for detecting a workpiece (5), characterized in that: It comprises a detection camera (3), a lens (4) connected to the detection camera (3), and a combined light source device of a coaxial light source and an annular light source as claimed in any one of claims 1 to 8.

10. The detection system according to claim 9, characterized in that: The detection camera (3) is located on one side of the first light-transmitting window (101) of the combined light source device, and the second light-transmitting window (102) of the combined light source device is arranged toward the workpiece (5).