Image detection system based on combined light source device

Abstract

An image detection system based on a combined light source device comprises a moving device used for moving and transmitting an object to be detected; the pulse frequency division device is used for sending a frequency division pulse signal at a first frequency; the frequency multiplication signal trigger is used for receiving the frequency division pulse signal and respectively sending a frequency multiplication pulse signal and an imaging signal at a second frequency; the light source controller receives the frequency-doubled pulse signal and sends a conversion signal at a second frequency; the combined light source device is used for receiving the conversion signal and alternately switching a plurality of groups of different combined light rays once, and the combined light rays are generated in the same accommodating cavity; and the imaging device receives the imaging signal and carries out image acquisition on the to-be-detected object. By means of the time-sharing stroboscopic function, the effect of multiple times of detection is achieved without increasing stations and within the same detection time. The combined light is generated in the same containing cavity, the occupied space area can be effectively reduced, each light source assembly has a good irradiation position, the problems of external light interference and light leakage are solved, and the detection effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuit packaging, and in particular to an image detection system based on a combined light source device. Background Art

[0002] Lead frame is an important component of integrated circuits as the carrier of chips. There are many types and great differences in structure. There are two main production processes: die stamping and chemical etching. The production process may cause pollution, foreign objects, scratches, deformation (horizontal / vertical), poor electroplating position, abnormal electroplating surface and other defects, which will seriously affect product performance, directly affect the quality of the subsequent packaged chips, and lead to a series of production resource waste in the manufacturing process.

[0003] In recent years, the semiconductor industry has exploded, production capacity has doubled, and the market demand for lead frames has also increased dramatically. Faced with such a huge market demand, quality control is particularly important. At present, the efficiency of manual visual inspection is far from meeting production needs, and a large number of inspection personnel will cause huge labor cost investment. Therefore, automatic optical inspection of lead frames is very important for lead frame production and sales companies.

[0004] However, there are still many problems in the current automatic optical inspection of lead frames. Summary of the invention

[0005] The technical problem solved by the present invention is to provide an image detection system based on a combined light source device to improve detection effect and reduce costs.

[0006] To solve the above problems, the technical solution of the present invention provides an image detection system based on a combined light source device, comprising: a moving device, used to move and transmit an object to be detected; a pulse frequency division device, electrically connected to the moving device, used to send a frequency division pulse signal at a first frequency after the object to be detected moves to an imaging position; a frequency doubling signal trigger, electrically connected to the pulse frequency division device, used to receive the frequency division pulse signal, and perform frequency doubling processing on the frequency division pulse signal, and send a frequency doubling pulse signal and an imaging signal at a second frequency respectively; a light source controller, electrically connected to the frequency doubling signal trigger, used to receive the frequency doubling pulse signal, and send conversion signals at the second frequency respectively; a combined light source device, electrically connected to the light source controller, used to receive the conversion signal, and after each time the conversion signal is received, a plurality of groups of different combined light rays are alternately switched, and the combined light rays are generated in the same cavity; an imaging device, electrically connected to the frequency doubling signal trigger, used to receive the imaging signal, and after each time the imaging signal is received, an image of the object to be detected is captured.

[0007] Optionally, the combined light source device includes: a first box body, the first box body having a first cavity; a plurality of light source components arranged in the first cavity, the light source components being used to generate light, the light having a light path irradiated onto the object to be detected; the light paths generated in different light source components are different; and each light source component has an independent electrical control system.

[0008] Optionally, the plurality of light source assemblies include: a first light source assembly and a plurality of second light source assemblies; the first light source assembly is used to generate a first light ray, the first light ray has a first light path irradiated onto the object to be detected; the second light source assembly is used to generate a second light ray, the second light ray has a second light path irradiated onto the object to be detected, and an angle is formed between the second light path and the first light path; the angles between the second light paths generated in different second light source assemblies and the first light paths are different.

[0009] Optionally, the first light source assembly includes: a first light source, used to generate the first light; and a first mirror reflection component, used to refract the first light once or multiple times so that the first light is irradiated onto the object to be detected along the first light path.

[0010] Optionally, the second light source assembly includes: a second light source, used to generate the second light; and a second mirror reflection component, used to refract the second light once or multiple times so that the second light is irradiated onto the object to be detected along the second light path.

[0011] Optionally, the combined light source device includes: a plurality of light source components, the light source components are used to generate light, the light has a light path that is irradiated onto the object to be detected; the light paths generated in different light source components are different; when a plurality of the light source components are used in combination, each of the light source components is detachably connected in sequence, and the light of the plurality of light source components is generated in the same cavity; each of the light source components has an independent electrical control system.

[0012] Optionally, the plurality of light source assemblies include: a first light source assembly and a plurality of second light source assemblies; the first light source assembly is used to generate a first light ray, the first light ray has a first light path irradiated onto the object to be detected; the second light source assembly is used to generate a second light ray, the second light ray has a second light path irradiated onto the object to be detected, and an angle is formed between the second light path and the first light path; the angles between the second light paths generated in different second light source assemblies and the first light paths are different.

[0013] Optionally, the first light source assembly includes: a first box body, having a first cavity therein; a first light source disposed in the first cavity, for generating the first light; and a first mirror reflection component disposed in the first cavity, for refracting the first light once or multiple times so that the first light is irradiated onto the object to be detected along the first light path.

[0014] Optionally, the second light source assembly includes: a second box body, the second box body having a second cavity; a second light source arranged in the second cavity, for generating the second light; and a second mirror reflection component arranged in the second cavity, for refracting the second light once or multiple times so that the second light is irradiated onto the object to be detected along the second light path.

[0015] Optionally, when several of the light source assemblies are used in combination, the first box body and several of the second box bodies, or several of the second box bodies are sequentially detachably connected, and the first cavity and several of the second cavities, or several of the second cavities, constitute an integral cavity.

[0016] Optionally, the detachable connection structure includes one or more of a threaded connection structure, a snap connection structure, a mortise and tenon connection structure, and a nested connection structure.

[0017] Optionally, the light source controller is used to control the switching and light brightness of the first light source assembly and the second light source assembly respectively.

[0018] Optionally, the pulse frequency division device includes: a pulse box, electrically connected to the mobile device, and used to send an initial pulse signal at an initial frequency; a frequency divider, electrically connected to the pulse box, and used to receive the initial pulse signal and send a divided or multiplied frequency signal at the first frequency.

[0019] Optionally, the imaging device includes: an imaging processor electrically connected to the frequency doubling signal trigger, used to receive the imaging signal and send a start signal at the second frequency; a graphics generating device, used to receive the start signal and capture an image of the object to be detected after each time the start signal is received, and transmit the captured image to the imaging processor.

[0020] Optionally, the imaging processor is further used to transmit to the light source controller the number of the combined light beams alternately switched corresponding to different objects to be detected and the light brightness parameters of each light beam in each group of the combined light beams.

[0021] Optionally, the imaging signal includes several types, and the imaging signals of the several types are sent alternately in sequence at the second frequency, and the number of types of the imaging signals is the same as the number of groups of the combined light beams.

[0022] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0023] The image detection system based on the combined light source device of the technical solution of the present invention includes: a frequency doubling signal trigger, electrically connected to the pulse frequency division device, used to receive the frequency division pulse signal, and perform frequency doubling on the frequency division pulse signal, and send the frequency doubling pulse signal at a second frequency; a light source controller, used to receive the frequency doubling pulse signal, and send a conversion signal and an imaging signal at the second frequency respectively; a combined light source device, electrically connected to the light source controller, used to receive the conversion signal, and after each reception of the conversion signal, alternately switching a plurality of groups of different combined light beams. Through the time-sharing stroboscopic function, the effect of multiple detections of one workstation can be achieved without increasing the number of workstations and within the same detection time. Compared with inspecting one station only once, the missed detection rate can be reduced. By taking photos multiple times continuously under different combinations of light, more product appearance information can be obtained, which helps to more comprehensively understand and deal with defects and prevent missed defects, and the inspection time will not increase. Compared with inspecting two stations once each, hardware costs can be saved, and on the inspection machine, the need to reserve space for two inspection stations is avoided, reducing the size of the inspection equipment. Compared with inspecting one station twice, the inspection time is greatly reduced, and the introduction of new defects during the second inspection process, which causes the product to be scrapped, is avoided.

[0024] In addition, the combined light is generated in the same cavity, which can effectively reduce the space area occupied by the combined light source device, so that each light source component in the combined light source device has a better irradiation position, and can reduce external light interference and the problem of self-light leakage, thereby improving the detection effect. The integrated combined light source device can reduce the common components in the split structure, thereby effectively reducing costs.

[0025] Furthermore, the imaging signal includes several types, and the imaging signals of the several types are sent alternately in sequence at the second frequency, and the number of the types of the imaging signals is the same as the number of the groups of the several combined light beams. By performing image acquisition based on the types of the imaging signal, images acquired under the same combined light beams can be automatically combined together, avoiding the subsequent additional image splitting and reassembly processing, and effectively improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural schematic diagram of an image detection system based on a combined light source device in an embodiment of the present invention;

[0027] Figure 2 is a schematic diagram of the structure of a combined light source device in one embodiment of the present invention and in a state of use;

[0028] Figure 3 It is a schematic structural diagram of a combined light source device in another embodiment of the present invention and its use state. DETAILED DESCRIPTION

[0029] As described in the background art, there are still many problems in the automatic optical inspection of lead frames, which will be described in detail below.

[0030] At present, defects to be detected, such as contamination, foreign objects, horizontal deformation, poor electroplating, etc., are mainly detected by coaxial light. Coaxial light is usually used as the main light source for appearance defect detection due to its clear imaging, uniform brightness, and distinct contours. However, for defects with a certain height difference, or defects with unclear differences when viewed directly, such as scratches, vertical deformation, and abnormal electroplating surface. Because the brightness of coaxial light is too uniform, it may weaken the difference and cause such defects to be missed. Therefore, in the current detection process, it is often necessary to add a strip light source (side light) with an inclined angle to strengthen defects with height differences, thereby reducing the occurrence of missed defects. In order to prevent missed detection, it is currently necessary to use two different combinations of light for independent photo detection. Generally, there are two ways to achieve this.

[0031] One method is to use a method of testing twice at one station, that is, to test once at the first station under a combination of light with coaxial light as the main light, and then to test the qualified products at the first station again under a combination of light with side light as the main light. This method will greatly increase the testing time, and may introduce new defects during the second testing process, resulting in product scrapping.

[0032] Another method is to use two stations to test once each, that is, to test once at the first station under a combination of light with coaxial light as the main component, and then to test once at the second station under a combination of light with side light as the main component. Only when both tests are qualified can the product be judged as qualified. Although the testing time of this implementation method does not increase much, setting up an extra station means that the hardware cost will increase significantly.

[0033] In addition, when additional tilted angle light sources are added to the inspection production line, not only will the cost increase, but the space on the inspection production line is limited, and the additional tilted angle light sources often cannot be fixed in the optimal position. In addition, since the various light sources are not enclosed in the same cavity, external light can easily cause interference, and the light itself can easily leak out, thereby affecting the inspection effect.

[0034] On this basis, the present invention provides an image detection system based on a combined light source device, which can achieve the effect of multiple detections at one workstation without increasing the number of workstations and within the same detection time through the time-sharing stroboscopic function. In addition, the combined light is generated in the same cavity, which can effectively reduce the space area occupied by the combined light source device, so that each light source component in the combined light source device has a better irradiation position, and can reduce external light interference and the problem of self-light leakage, thereby improving the detection effect. The integrated combined light source device can reduce the common components in the split structure, thereby effectively reducing costs.

[0035] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Typical embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] Figure 1 is a structural schematic diagram of an image detection system based on a combined light source device in an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of a combined light source device and its use state in one embodiment of the present invention.

[0038] Please refer to Figure 1, an image detection system based on a combined light source device, comprising: a moving device 10, used for moving and transmitting an object A to be detected; a pulse frequency dividing device 20, electrically connected to the moving device 10, used for sending a frequency-divided pulse signal at a first frequency f1 after the object A to be detected moves to an imaging position; a frequency-doubling signal trigger 30, electrically connected to the pulse frequency-dividing device 20, used for receiving the frequency-divided pulse signal, and performing frequency-doubling processing on the frequency-divided pulse signal, and sending a frequency-doubling pulse signal and an imaging signal at a second frequency f2; a light source controller 40, electrically connected to the frequency-doubling signal The trigger 30 is electrically connected to receive the doubled frequency pulse signal, and sends a conversion signal and an imaging signal at the second frequency f2 respectively; the combined light source device 50 is electrically connected to the light source controller 40, and is used to receive the conversion signal, and after each conversion signal is received, a plurality of groups of different combined light rays are alternately switched, and the combined light rays are generated in the same cavity; the imaging device 60 is electrically connected to the doubled frequency signal trigger 30, and is used to receive the imaging signal, and after each imaging signal is received, an image of the object A to be detected is captured.

[0039] In this embodiment, the time-sharing stroboscopic function is used to achieve the effect of multiple inspections at one station without adding stations and within the same inspection time. Compared with only inspecting one station once, the missed inspection rate can be reduced, and taking photos continuously multiple times under different light combinations can obtain more product appearance information, which helps to more comprehensively recognize and handle defects and prevent missed defects, and the inspection time will not increase; compared with inspecting two stations once each, it can save hardware costs, and on the inspection machine, it avoids the need to reserve two inspection station spaces, reducing the disadvantage of the size of the inspection equipment; compared with inspecting one station twice, the inspection time is greatly reduced, and it avoids the introduction of new defects in the process of secondary inspection, causing the product to be scrapped.

[0040] In addition, the combined light is generated in the same cavity, which can effectively reduce the space area occupied by the combined light source device 50, so that each light source component in the combined light source device 50 has a better irradiation position, and can reduce external light interference and the problem of self-light leakage, thereby improving the detection effect. The integrated combined light source device 50 can reduce the common components in the split structure, thereby effectively reducing costs.

[0041] Please refer to Figure 2In this embodiment, the combined light source device 50 includes: a first box body 500, wherein the first box body 500 has a first cavity 5001; a plurality of light source components arranged in the first cavity 5001, wherein the light source components are used to generate light, and the light has a light path that is irradiated onto the object A to be detected; the light paths generated in different light source components are different; and each light source component has an independent electrical control system.

[0042] In this embodiment, each of the light source components has an independent electrical control system, which can be flexibly adjusted and controlled according to actual needs.

[0043] Please continue to refer to Figure 2 In this embodiment, the plurality of light source assemblies include: a first light source assembly 501 and a plurality of second light source assemblies 502; the first light source assembly 501 is used to generate a first light ray 5011, the first light ray 5011 has a first light path S1 irradiated onto the object A to be detected; the second light source assembly 502 is used to generate a second light ray 5021, the second light ray 5021 has a second light path S2 irradiated onto the object A to be detected, and an angle α is formed between the second light path S2 and the first light path S1; the angle α between the second light path S2 generated in different second light source assemblies 502 and the first light path S1 is different.

[0044] Please continue to refer to Figure 2 In this embodiment, the first light path S1 and the image generating device 602 used in conjunction with the combined light source device are located on the same axis.

[0045] In this embodiment, the first light source assembly 501 is placed above a plurality of the second light source assemblies 502 .

[0046] It should be noted that, in the present embodiment, the image generating device 602 may specifically be a CCD (charge coupled device) camera. Since the first light path S1 and the image generating device 602 are on the same axis, the first light 5011 may be called coaxial light. Several second light paths S2 have different angles α with the first light path S1, so several second light rays 5021 may be called side light.

[0047] In this embodiment, the first light 5011 and the second light 5021 are used to detect the front side of the object A to be detected. When the first light 5011 and the second light 5021 irradiate the front side of the object A to be detected, they will be reflected, and the reflected light will be captured by the image generating device 602, thereby realizing the front side detection of the object A to be detected.

[0048] Please continue to refer to Figure 2 In this embodiment, the first light source assembly 501 includes: a first light source 5012, used to generate the first light 5011; a first mirror reflection component 5013, used to refract the first light 5011 once or multiple times so that the first light 5011 is irradiated onto the object A to be detected along the first light path S1.

[0049] In this embodiment, the second light source assembly 502 includes: a second light source 5022, used to generate the second light 5021; a second mirror reflection component 5023, used to refract the second light 5021 once or multiple times so that the second light 5021 is irradiated onto the object A to be detected along the second light path S2.

[0050] In this embodiment, the object A to be detected includes: a lead frame.

[0051] In this embodiment, since each of the light source components has an independent electrical control system, the switching and light brightness of the first light source component 501 and the second light source component 502 can be controlled separately by the light source controller 40, and then the opening, closing and light intensity of the corresponding light source component can be flexibly adjusted as needed.

[0052] In this embodiment, the pulse frequency division device 20 includes: a pulse box 201, electrically connected to the mobile device 10, for sending an initial pulse signal at an initial frequency f0; a frequency divider 202, electrically connected to the pulse box 201, for receiving the initial pulse signal and sending a divided and multiplied frequency signal at the first frequency f1.

[0053] In this embodiment, the mobile device includes: a PLC control box and a motor driver (not shown) electrically connected to the PLC control box. The motor driver is used to control the rotation speed of the linear motor in the mobile device 10, thereby controlling the moving transmission speed of the object A to be detected. The pulse box 201 is electrically connected to the motor driver, and the frequency of the initial pulse signal in the pulse box 201 is reduced by the divider 202, so that the moving transmission speed of the object A to be detected is matched and coordinated with the pixel width of an image captured by the image generating device 602.

[0054] In this embodiment, the imaging device 60 includes: an imaging processor 601, which is electrically connected to the frequency doubling signal trigger 30, and is used to receive the imaging signal and send a start signal at the second frequency f2; a graphic generating device 602, which is used to receive the start signal and capture an image of the object A to be detected after each time the start signal is received, and transmit the captured image to the imaging processor 601.

[0055] In this embodiment, the imaging processor 601 is further used to transmit the number of the combined light beams corresponding to the different objects A to be detected and the light brightness parameters of each light beam in each group of the combined light beams to the light source controller 40 .

[0056] In this embodiment, the imaging signal includes several types, and the imaging signals of the several types are sent alternately in sequence at the second frequency, and the number of the types of the imaging signals is the same as the number of the groups of the several combined light beams. By performing image acquisition based on the types of the imaging signal, images acquired under the same combined light beams can be automatically combined together, avoiding the subsequent additional image splitting and reassembly processing, and effectively improving the detection efficiency.

[0057] For example, in a specific embodiment, when the object A to be detected needs to be detected under the combination of light beams 2 (i.e., combination light beam 1 and combination light beam 2), since the number of the combination light beams increases, the number of times the corresponding image acquisition is also increased. Therefore, the frequency-multiplied signal trigger 30 multiplies the original frequency-divided pulse signal of the first frequency f1 and increases it to the second frequency f2. The second frequency f2 is a positive integer multiple of the first frequency f1. The specific increase multiple is consistent with the number of the combination light beams that need to be switched alternately. The purpose is to ensure that multiple image acquisitions are completed in the same detection time. After the frequency-multiplied processing, the frequency-multiplied pulse signal is sent to the light source controller 40. The light source controller 40 converts the frequency-multiplied pulse signal into the conversion signal and the imaging signal of the same frequency (second frequency f2). The purpose is to ensure that the corresponding image acquisition is performed each time the combination light beam is switched. When the combined light source device receives the conversion signal, it will switch once each time it receives the conversion signal, such as switching the combined light 1 to the combined light 2, or switching the combined light 2 to the combined light 1, so as to realize the function of switching the combined light 1 and the combined light 2 alternately. Synchronously, the imaging device 60 will receive the imaging signal accordingly. Since there are two groups of the combined light, the imaging signal is also split into two types (i.e., the first imaging signal L1 and the second imaging signal L2), and the two imaging signals are sent alternately in sequence at the second frequency. When the combined light 1 corresponds, the imaging device receives the first imaging signal and collects the image under the combined light 1. Similarly, when the combined light 2 corresponds, the imaging device receives the second imaging signal and collects the image under the combined light 2. Therefore, the imaging device can distinguish the first imaging signal and the second imaging signal, combine the images collected under the combined light 1, and combine the images collected under the combined light 2, without the need for additional splitting and reorganization processing.

[0058] Figure 3 It is a schematic structural diagram of a combined light source device in another embodiment of the present invention and its use state.

[0059] The difference from the above embodiment is that the several light source components in the combined light source device described in this embodiment are detachably connected.

[0060] Please refer to Figure 3The combined light source device includes: a plurality of light source components, the light source components are used to generate light, and the light has a light path that irradiates the object A to be detected; the light paths generated in different light source components are different; the plurality of light source components can be used independently or in combination, and when used in combination, the plurality of light source components are connected in sequence through a detachable connection, and the light of the plurality of light source components is generated in the same cavity; each light source component has an independent electrical control system.

[0061] Please continue to refer to Figure 3 In this embodiment, the plurality of light source assemblies include: a first light source assembly 701 and a plurality of second light source assemblies 702; the first light source assembly 701 is used to generate a first light ray 7011, and the first light ray 7011 has a first light path S1 irradiated onto the object A to be detected; the second light source assembly 702 is used to generate a second light ray 7021, and the second light ray 7021 has a second light path S2 irradiated onto the object A to be detected, and an angle α is formed between the second light path S2 and the first light path S1; the angle α between the second light path S2 generated in different second light source assemblies 702 and the first light path S1 is different.

[0062] In this embodiment, the first light path S1 and the image generating device 602 used in conjunction with the combined light source device are located on the same axis.

[0063] In this embodiment, the first light source assembly 701 is located above a plurality of the second light source assemblies 702 .

[0064] It should be noted that, in this embodiment, the image generating device 602 can specifically adopt a CCD camera. Since the first light path S1 and the image generating device 602 are on the same axis, the first light 7011 can be called coaxial light. Several second light paths S2 have different angles α with the first light path S1, so several second light rays 7021 can be called side light.

[0065] In this embodiment, the first light 7011 and the second light 7021 are used to detect the front side of the object A to be detected. When the first light 7011 and the second light 7021 irradiate the front side of the object A to be detected, they will be reflected, and the reflected light will be captured by the image generating device 602, thereby realizing the front side detection of the object 26 to be detected.

[0066] In this embodiment, the first light source assembly 701 includes: a first box body 7012, wherein the first box body 7012 has a first cavity 7013; a first light source 7014 disposed in the first cavity 7013, for generating the first light 7011; a first mirror reflection component 7015 disposed in the first cavity 7013, for refracting the first light 7011 once or multiple times, so that the first light 7011 is irradiated onto the object A to be detected along the first light path S1.

[0067] In this embodiment, the second light source assembly 702 includes: a second box body 7022, wherein the second box body 7022 has a second cavity 7023; a second light source 7024 disposed in the second cavity 7023, for generating the second light 7021; and a second mirror reflection component 7025 disposed in the second cavity 7023, for refracting the second light 7021 once or multiple times so that the second light 7021 is irradiated onto the object A to be detected along the second light path S2.

[0068] In this embodiment, when several of the light source assemblies are used in combination, the first box body 7012 and several of the second box bodies 7022, or several of the second box bodies 7022 are detachably connected in sequence, and the first cavity 7013 and several of the second cavities 7023, or several of the second cavities 7023 constitute an integral cavity.

[0069] It should be noted that, in this embodiment, the first cavity 7013 of the first box body 7012 is a structure with a sealed top and an open bottom, and the second cavity 7023 of the second box body 7022 is a vertically through structure. When the first box body 7012 and a plurality of the second box bodies 7022 are used in combination, the first box body 7012 and a plurality of the second box bodies 7022 are sequentially detachably connected, and it is sufficient to ensure that the adjacent cavities correspond to each other from top to bottom; when only a plurality of the second box bodies 7022 are used in combination, the plurality of the second box bodies 7022 are sequentially detachably connected, and it is ensured that the adjacent cavities correspond to each other from top to bottom, and it is necessary to seal the top of the second cavity 7023 of the second box body 7022 located at the top (a sealing cover plate may be additionally configured); when the second box body 7022 is used alone, it is necessary to seal the top of the second cavity 7023 of the second box body 7022 (a sealing cover plate may be additionally configured).

[0070] In this embodiment, the detachable connection structure 703 includes: one or more of a threaded connection structure, a snap connection structure, a mortise and tenon connection structure, and a nested connection structure.

[0071] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An image detection system based on a combined light source device, characterized in that: include: A mobile device, used for moving and transmitting the object to be detected; A pulse frequency dividing device, electrically connected to the moving device, for sending a frequency-divided pulse signal at a first frequency after the object to be detected moves to an imaging position; A frequency doubling signal trigger, electrically connected to the pulse frequency dividing device, for receiving the frequency divided pulse signal, performing frequency doubling processing on the frequency divided pulse signal, and sending the frequency doubling pulse signal and the imaging signal at a second frequency respectively; a light source controller, electrically connected to the frequency-doubled signal trigger, for receiving the frequency-doubled pulse signal and sending conversion signals at the second frequency; A combined light source device, electrically connected to the light source controller, for receiving the conversion signal, and performing an alternating switch on a plurality of groups of different combined light beams after receiving the conversion signal each time, and the combined light beams are generated in the same cavity; An imaging device is electrically connected to the frequency-multiplied signal trigger, and is used to receive the imaging signal, and after receiving the imaging signal each time, to capture an image of the object to be detected.

2. The image detection system based on the combined light source device as claimed in claim 1, characterized in that: The combined light source device includes: a first box body, wherein the first box body has a first cavity; a plurality of light source components arranged in the first cavity, wherein the light source components are used to generate light, and the light has a light path that is irradiated onto the object to be detected; the light paths generated in different light source components are different; and each light source component has an independent electrical control system.

3. The image detection system based on the combined light source device as claimed in claim 2, characterized in that: The plurality of light source assemblies include: a first light source assembly and a plurality of second light source assemblies; the first light source assembly is used to generate a first light ray, the first light ray has a first light path irradiated onto the object to be detected; the second light source assembly is used to generate a second light ray, the second light ray has a second light path irradiated onto the object to be detected, and an angle is formed between the second light path and the first light path; the angles between the second light paths generated in different second light source assemblies and the first light path are different.

4. The image detection system based on the combined light source device as claimed in claim 3, characterized in that: The first light source assembly includes: a first light source, used to generate the first light; and a first mirror reflection component, used to refract the first light once or multiple times so that the first light is irradiated onto the object to be detected along the first light path.

5. The image detection system based on the combined light source device as claimed in claim 3, characterized in that: The second light source assembly includes: a second light source, used to generate the second light; and a second mirror reflection component, used to refract the second light once or multiple times so that the second light is irradiated onto the object to be detected along the second light path.

6. The image detection system based on the combined light source device as claimed in claim 1, characterized in that: The combined light source device includes: a plurality of light source assemblies, wherein the light source assemblies are used to generate light, and the light has a light path that is irradiated onto an object to be detected; the light paths generated in different light source assemblies are different; when the plurality of light source assemblies are used in combination, each of the light source assemblies is detachably connected in sequence, and the light of the plurality of light source assemblies is generated in the same cavity; each of the light source assemblies has an independent electrical control system.

7. The image detection system based on the combined light source device as claimed in claim 6, characterized in that: The plurality of light source assemblies include: a first light source assembly and a plurality of second light source assemblies; the first light source assembly is used to generate a first light ray, the first light ray has a first light path irradiated onto the object to be detected; the second light source assembly is used to generate a second light ray, the second light ray has a second light path irradiated onto the object to be detected, and an angle is formed between the second light path and the first light path; the angles between the second light paths generated in different second light source assemblies and the first light path are different.

8. The image detection system based on the combined light source device as claimed in claim 7, characterized in that: The first light source assembly includes: a first box body, wherein the first box body has a first cavity; a first light source disposed in the first cavity, for generating the first light; and a first mirror reflection component disposed in the first cavity, for refracting the first light once or multiple times so that the first light is irradiated onto the object to be detected along the first light path.

9. The image detection system based on the combined light source device as claimed in claim 8, characterized in that: The second light source assembly includes: a second box body, the second box body having a second cavity; a second light source arranged in the second cavity, used to generate the second light; a second mirror reflection component arranged in the second cavity, used to refract the second light once or multiple times so that the second light is irradiated onto the object to be detected along the second light path.

10. The image detection system based on the combined light source device as claimed in claim 9, characterized in that: When several of the light source assemblies are used in combination, the first box body and several of the second box bodies, or several of the second box bodies are sequentially detachably connected, and the first cavity and several of the second cavities, or several of the second cavities, constitute an integral cavity.

11. The image detection system based on the combined light source device according to claim 6 or 10, characterized in that: The detachable connection structure includes: one or more of a threaded connection structure, a snap connection structure, a mortise and tenon connection structure, and a nested connection structure.

12. The image detection system based on the combined light source device according to claim 3 or 7, characterized in that: The light source controller is used to control the switching and light brightness of the first light source assembly and the second light source assembly respectively.

13. The image detection system based on the combined light source device as claimed in claim 1, characterized in that: The pulse frequency dividing device includes: a pulse box, electrically connected to the mobile device, used to send an initial pulse signal at an initial frequency; a frequency divider, electrically connected to the pulse box, used to receive the initial pulse signal and send a divided and multiplied frequency signal at the first frequency.

14. The image detection system based on the combined light source device as claimed in claim 1, characterized in that: The imaging device includes: an imaging processor, which is electrically connected to the frequency doubling signal trigger, and is used to receive the imaging signal and send a start signal at the second frequency; a graphic generating device, which is used to receive the start signal and capture an image of the object to be detected after receiving the start signal each time, and transmit the captured image to the imaging processor.

15. The image detection system based on the combined light source device as claimed in claim 14, characterized in that: The imaging processor is further used to transmit the number of the combined light beams alternately switched corresponding to different objects to be detected and the light brightness parameters of each light beam in each group of the combined light beams to the light source controller.

16. The image detection system based on the combined light source device as claimed in claim 1, characterized in that: The imaging signals include several types, and the imaging signals of the several types are sent alternately in sequence at the second frequency, and the number of the types of the imaging signals is the same as the number of the groups of the combined light beams.

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