Low-angle lighting light source device and detection system

Abstract

The embodiment of the utility model discloses a low-angle lighting light source device and a detection system, which are used for solving the technical problem of incomplete imaging caused by the fact that the irradiation surface of the existing light source device is small in area and cannot cover a workpiece. The embodiment of the utility model comprises a first light source module, a second light source module, a first support frame and a second support frame, the first light source module and the second light source module are both installed between the first supporting frame and the second supporting frame, the first light source module and the second light source module are oppositely arranged, and the optical axis of irradiation light of the first light source module is obliquely arranged relative to the horizontal plane. The optical axis of the irradiation light of the second light source module is obliquely arranged relative to the horizontal plane, and the optical axis of the irradiation light of the first light source module intersects with the optical axis of the irradiation light of the second light source module.

Description

Technical Field

[0001] The utility model relates to the technical field of light source design, and in particular to a light source device and a detection system for low-angle lighting. Background Art

[0002] The inspection of existing workpieces is generally completed through a visual inspection system, which specifically includes a detection camera module and a light source device.

[0003] At present, in actual application, due to the limited area of ​​the illumination surface of the light source device, the illumination surface of the light source device often cannot effectively and completely cover the workpiece, resulting in incomplete imaging of the workpiece, and thus unable to guarantee the accuracy of workpiece detection, which brings certain troubles to the detection process.

[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. Summary of the invention

[0005] The embodiment of the utility model discloses a low-angle lighting light source device and a detection system, which are used to solve the technical problem that the illumination surface area of ​​the existing light source device is small and cannot cover the workpiece, thus causing incomplete imaging.

[0006] The embodiment of the utility model provides a low-angle lighting light source device, comprising a first light source module, a second light source module, and a first support frame and a second support frame arranged opposite to each other;

[0007] The first light source module and the second light source module are both installed between the first supporting frame and the second supporting frame, the first light source module and the second light source module are arranged opposite to each other, and the illumination optical axis of the first light source module is inclined relative to the horizontal plane, the illumination optical axis of the second light source module is inclined relative to the horizontal plane, and the illumination optical axis of the first light source module intersects with the illumination optical axis of the second light source module.

[0008] Optionally, the first end of the first light source module is rotatably connected to the first support frame, and the second end of the first light source module is rotatably connected to the second support frame.

[0009] Optionally, the first light source module can be driven to rotate within an angle range of 0° to 30°.

[0010] Optionally, the first end of the second light source module is rotatably connected to the first support frame, and the second end of the second light source module is rotatably connected to the second support frame.

[0011] Optionally, the second light source module can be driven to rotate within an angle range of 0° to 30°.

[0012] Optionally, the first light source module and the second light source module have the same structure;

[0013] The first light source module and the second light source module both include an outer shell, a PCB light board and a diffusion plate;

[0014] The outer shell is provided with a light exit window, the PCB light board is installed in the outer shell and the irradiation direction of the PCB light board is toward the light exit window, and the diffusion plate is arranged on the light exit window.

[0015] The embodiment of the utility model provides a detection system, including a detection camera module and the above-mentioned low-angle lighting light source device;

[0016] The detection camera module is located above the low-angle lighting light source device.

[0017] Optionally, the number of the detection camera modules is four, and the four detection camera modules are arranged in a matrix above the low-angle lighting light source device.

[0018] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0019] In this embodiment, the first light source module and the second light source module are both installed between the first support frame and the second support frame, the first light source module and the second light source module are arranged opposite to each other, and the optical axis of the irradiated light of the first light source module is arranged obliquely relative to the horizontal plane, the optical axis of the irradiated light of the second light source module is arranged obliquely relative to the horizontal plane, and the optical axis of the irradiated light of the first light source module intersects with the optical axis of the irradiated light of the second light source module. Through the above design, the first light source module and the second light source module are respectively irradiated onto the opposite object to be detected, the working distance is increased, and the low-angle irradiation, when the divergence angle of the light source is constant, the irradiation surface of the light source increases accordingly, so that the irradiation surface can cover the object to be detected, ensuring the integrity of the imaging and effectively improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a low-angle lighting light source device provided in an embodiment of the utility model;

[0022] Figure 2This is a front structural schematic diagram of a low-angle lighting light source device provided in an embodiment of the utility model;

[0023] Figure 3 A light path diagram of a low-angle lighting light source device provided in an embodiment of the utility model;

[0024] Illustration: first light source module 1; second light source module 2; first support frame 3; second support frame 4; detection camera module 5; detected object 6. DETAILED DESCRIPTION

[0025] The embodiment of the utility model discloses a low-angle lighting light source device and a detection system, which are used to solve the technical problem that the illumination surface area of ​​the existing light source device is small and cannot cover the workpiece, thus causing incomplete imaging.

[0026] 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.

[0027] See also Figures 1 to 3 A low-angle lighting light source device provided in an embodiment of the utility model comprises a first light source module 1, a second light source module 2, and a first support frame 3 and a second support frame 4 arranged oppositely;

[0028] The first light source module 1 and the second light source module 2 are both installed between the first supporting frame 3 and the second supporting frame 4, the first light source module 1 and the second light source module 2 are arranged opposite to each other, and the illumination optical axis of the first light source module 1 is inclined relative to the horizontal plane, the illumination optical axis of the second light source module 2 is inclined relative to the horizontal plane, and the illumination optical axis of the first light source module 1 intersects with the illumination optical axis of the second light source module 2.

[0029] In this embodiment, the first light source module 1 and the second light source module 2 are both installed between the first support frame 3 and the second support frame 4, the first light source module 1 and the second light source module 2 are arranged opposite to each other, and the irradiation optical axis of the first light source module 1 is arranged at an angle relative to the horizontal plane, and the irradiation optical axis of the second light source module 2 is arranged at an angle relative to the horizontal plane, and the irradiation optical axis of the first light source module 1 intersects with the irradiation optical axis of the second light source module 2. Through the above design, the first light source module 1 and the second light source module 2 are respectively irradiated onto the opposite object 6 to be detected, the working distance is increased, and the low-angle irradiation is performed. When the divergence angle of the light source is constant, the irradiation surface of the light source increases accordingly, so that the irradiation surface can cover the object 6 to be detected, ensuring the integrity of the imaging and effectively improving the detection accuracy.

[0030] Furthermore, in this embodiment, the first end of the first light source module 1 is rotatably connected to the first support frame 3 , and the second end of the first light source module 1 is rotatably connected to the second support frame 4 .

[0031] It should be noted that, through the above design, the first light source module 1 can rotate relative to the first support frame 3 and the second support frame 4, thereby adjusting the irradiation angle of the first light source module 1, making the lighting of the first light source module 1 more flexible.

[0032] Specifically, the first light source module 1 in this embodiment can be driven to rotate within an angle range of 0° to 30°.

[0033] It should be noted that the operator can rotate the first light source module 1 to an angle within the above range according to actual detection requirements.

[0034] Furthermore, in this embodiment, the first end of the second light source module 2 is rotatably connected to the first support frame 3 , and the second end of the second light source module 2 is rotatably connected to the second support frame 4 .

[0035] It should be noted that, through the above design, the second light source module 2 can rotate relative to the first support frame 3 and the second support frame 4, thereby adjusting the irradiation angle of the first light source module 1, making the lighting of the first light source module 1 more flexible.

[0036] Specifically, the second light source module 2 in this embodiment can be driven to rotate within an angle range of 0° to 30°.

[0037] It should be noted that the operator can rotate the second light source module 2 to an angle within the above range according to actual detection requirements.

[0038] Furthermore, the first light source module 1 and the second light source module 2 in this embodiment have the same structure;

[0039] The first light source module 1 and the second light source module 2 both include an outer shell, a PCB light board and a diffusion plate;

[0040] The outer shell is provided with a light exit window, the PCB light board is installed in the outer shell and the irradiation direction of the PCB light board is toward the light exit window, and the diffusion plate is arranged on the light exit window.

[0041] It should be noted that the PCB light board in this embodiment is used to emit light, and the diffusion plate is used to diffuse the light emitted by the PCB light board so that the light source can be evenly irradiated onto the object to be detected 6.

[0042] See also Figures 1 to 3 , a detection system provided in an embodiment of the utility model includes a detection camera module 5 and the above-mentioned low-angle lighting light source device;

[0043] The detection camera module 5 is located above the low-angle lighting light source device.

[0044] Specifically, the number of the detection camera modules 5 in this embodiment is four, and the four detection camera modules 5 are arranged in a matrix above the low-angle lighting light source device.

[0045] It should be noted that the light irradiated by the first light source module 1 and the second light source module 2 on the detected object 6 is reflected, and the reflected light enters the detection camera module 5 to be imaged by the detection camera module 5 .

[0046] The above is a detailed introduction to a low-angle lighting light source device and a detection system provided by the present invention. For a person skilled in the art, according to the idea of ​​the embodiments of the present invention, there may be changes in the specific implementation method and the scope of application. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A light source device for low-angle lighting, characterized in that: It comprises a first light source module (1), a second light source module (2), and a first support frame (3) and a second support frame (4) which are arranged opposite to each other; The first light source module (1) and the second light source module (2) are both installed between the first support frame (3) and the second support frame (4); the first light source module (1) and the second light source module (2) are arranged opposite to each other; the irradiation optical axis of the first light source module (1) is arranged to be inclined relative to a horizontal plane; the irradiation optical axis of the second light source module (2) is arranged to be inclined relative to a horizontal plane; the irradiation optical axis of the first light source module (1) intersects with the irradiation optical axis of the second light source module (2).

2. The low-angle lighting light source device according to claim 1, characterized in that: The first end of the first light source module (1) is rotatably connected to the first support frame (3), and the second end of the first light source module (1) is rotatably connected to the second support frame (4).

3. The low-angle lighting light source device according to claim 2, characterized in that: The first light source module (1) can be driven to rotate at an angle ranging from 0° to 30°.

4. The low-angle lighting light source device according to claim 1, characterized in that: The first end of the second light source module (2) is rotatably connected to the first support frame (3), and the second end of the second light source module (2) is rotatably connected to the second support frame (4).

5. The low-angle lighting light source device according to claim 4, characterized in that: The second light source module (2) can be driven to rotate at an angle ranging from 0° to 30°.

6. The low-angle lighting light source device according to claim 1, characterized in that: The first light source module (1) and the second light source module (2) have the same structure; The first light source module (1) and the second light source module (2) both comprise an outer shell, a PCB light board and a diffusion plate; The outer shell is provided with a light exit window, the PCB light board is installed in the outer shell and the irradiation direction of the PCB light board is toward the light exit window, and the diffusion plate is arranged on the light exit window.

7. A detection system, characterized in that: It comprises a detection camera module (5) and a low-angle lighting light source device as claimed in any one of claims 1 to 6; The detection camera module (5) is located above the low-angle lighting light source device.

8. The detection system according to claim 7, characterized in that: The number of the detection camera modules (5) is four, and the four detection camera modules (5) are arranged in a matrix above the low-angle lighting light source device.

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