Combined light source device

Abstract

The utility model relates to the technical field of machine vision detection, and discloses a combined light source device, which can simultaneously meet the lighting requirements of character detection, surface defect detection and overall dimension measurement by integrating various light sources, namely a high-angle annular lamp panel, a sphere integration light source component and a low-angle annular lamp panel in the same shell. The detection efficiency is greatly improved, the space occupancy rate and the production cost are reduced, and powerful technical support is provided for intelligent and automatic development of modern industrial production.

Description

Technical Field

[0001] The utility model relates to the technical field of machine vision detection, in particular to a combined light source device. Background Art

[0002] In the current field of machine vision inspection, in order to achieve more efficient and accurate data collection, we usually choose a specific light source type based on different inspection requirements. Specifically, when it comes to character inspection, we tend to use spherical integral light sources, whose unique lighting characteristics can ensure the clarity and readability of characters; when facing surface defects, such as scratches and other minor flaws, we tend to use low-angle ring light sources, whose light source distribution can highlight these minor flaws; furthermore, for the measurement of contour dimensions, high-angle ring light sources are our first choice, which can accurately depict the contour details of the object.

[0003] However, the current usage of these light sources is relatively independent, that is, each light source needs to occupy an independent workstation, which not only increases the space occupancy rate of the detection equipment, but also greatly limits the detection efficiency in actual operation due to the need to frequently change workstations. This decentralized use of light sources obviously cannot meet the high-efficiency and high-precision detection needs of modern industrial production.

[0004] Therefore, it is necessary to improve the existing technology.

[0005] The above information is presented as background information only to assist with understanding the present disclosure and no determination or admission is made as to whether any of the above may be used as prior art with respect to the present disclosure. Utility Model Content

[0006] The utility model provides a combined light source device to solve the problems existing in the prior art.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A combined light source device comprises a housing, and a high-angle annular light panel, a spherical integrating light source assembly and a low-angle annular light panel which are arranged in the housing in sequence along a vertical direction; wherein:

[0009] The shell is hollow inside, open at the bottom, and has an imaging hole at the top;

[0010] The spherical integrating light source assembly comprises a hemispherical reflecting cover and a spherical integrating annular light panel; the reflecting surface of the hemispherical reflecting cover faces the opening, and the light emitting direction of the spherical integrating annular light panel faces the reflecting surface of the hemispherical reflecting cover; a spherical integrating observation hole is provided on the top of the hemispherical reflecting cover;

[0011] The imaging hole, the central opening of the high-angle annular light panel, the spherical integrating observation hole, the central opening of the spherical integrating annular light panel, and the central opening of the low-angle annular light panel are on the same axis.

[0012] Further, in the combined light source device, the housing includes a cylinder, an upper pressing plate and a lower pressing plate;

[0013] The top and bottom of the cylinder are penetrated, and an annular limit block is provided on the inner wall;

[0014] The upper pressing plate is covered on the top of the cylinder, and an inner ring is provided on one side of the upper pressing plate facing the inside of the cylinder;

[0015] The high-angle annular light panel is arranged around the inner ring member;

[0016] The spherical integrating annular light panel is arranged on the annular limiting block;

[0017] The bottom of the hemispherical reflector is in contact with the annular stop block, and the top of the hemispherical reflector is in contact with the upper pressing plate;

[0018] The lower pressure plate cover is arranged at the bottom of the cylinder;

[0019] The low-angle annular light panel is arranged between the bottom of the cylinder and the lower pressing plate.

[0020] Furthermore, in the combined light source device, thermally conductive silicone is provided between the spherical integrating annular light panel and the annular limiting block.

[0021] Furthermore, in the combined light source device, the lower pressing plate is provided with a limiting groove for the low-angle annular light panel to be clamped.

[0022] Furthermore, in the combined light source device, the upper pressing plate is provided with a mounting hole.

[0023] Furthermore, in the combined light source device, the imaging hole is provided in the inner ring member.

[0024] Furthermore, in the combined light source device, the hemispherical reflector is made of organic glass.

[0025] Furthermore, in the combined light source device, the interior of the hemispherical reflector is coated with a diffuse reflection coating.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] The utility model provides a combined light source device, which integrates various light sources, namely a high-angle annular light panel, a spherical integral light source assembly and a low-angle annular light panel in the same shell, thereby being able to simultaneously meet the lighting requirements of character detection, surface defect detection and contour dimension measurement, greatly improving the detection efficiency, reducing space occupancy and production costs, and providing strong technical support for the intelligent and automated development of modern industrial production.

[0028] The present invention has other characteristics and advantages, which will be apparent from the accompanying drawings and subsequent specific embodiments incorporated herein, or will be described in detail in the accompanying drawings and subsequent specific embodiments incorporated herein, which together are used to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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.

[0030] Figure 1 It is a (three-dimensional) structural schematic diagram of a combined light source device provided by an embodiment of the utility model;

[0031] Figure 2 It is a (cross-sectional) structural schematic diagram of a combined light source device provided by an embodiment of the utility model;

[0032] Figure 3 It is a schematic diagram of the structure of a combined light source device (viewed from above) provided in an embodiment of the utility model.

[0033] Reference numerals:

[0034] Shell 1, high-angle annular light panel 2, low-angle annular light panel 3, imaging hole 4, hemispherical reflector 5, spherical integral annular light panel 6, opening 7, spherical integral observation hole 8, thermal conductive silicone 9;

[0035] Cylinder body 101 , upper pressing plate 102 , lower pressing plate 103 , annular limiting block 104 , inner ring member 105 , limiting groove 106 . DETAILED DESCRIPTION

[0036] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0037] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0038] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0039] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0040] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0041] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0042] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0043] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0044] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] Embodiment 1

[0046] In view of the defects of the above-mentioned prior art, the applicant, based on many years of rich practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theory, actively conducts research and innovation in the hope of creating a technology that can solve the defects of the prior art. After continuous research and design, and after repeated trial samples and improvements, the present utility model with real practical value was finally created.

[0047] Please refer to Figure 1-3 The embodiment of the utility model provides an integrated, high-efficiency combined light source device, which is mainly composed of the following key parts: a shell 1 with a hollow internal structure, and a high-angle annular light panel 2, a spherical integral light source assembly and a low-angle annular light panel 3 arranged in an orderly manner in the vertical direction in the shell.

[0048] First, the housing 1 is exquisitely designed, with a hollow structure inside, an opening 7 at the bottom, and an image capturing hole 4 at the top. Such a design not only ensures the stability of the light source device, but also provides the necessary conditions for the effective propagation of light and the clear capture of images.

[0049] Secondly, the spherical integral light source assembly is one of the core components of the device, which consists of a hemispherical reflector 5 and a spherical integral annular light panel 6. The reflective surface of the hemispherical reflector 5 faces the bottom opening 7, ensuring that the light can be evenly reflected and diffused to the object to be detected. The spherical integral annular light panel 6 faces the reflective surface of the hemispherical reflector 5 with its light emitting direction, thereby providing a stable and uniform light source. In addition, a spherical integral observation hole 8 is also provided on the top of the hemispherical reflector 5.

[0050] It is worth noting that the imaging hole 4, the central opening of the high-angle annular light panel 2, the spherical integral observation hole 8, the central opening of the spherical integral annular light panel 6 and the central opening of the low-angle annular light panel 3 in the device are all designed on the same axis. This layout not only optimizes the propagation path of light and improves the utilization rate of light, but also ensures the clarity of the image and the accuracy of detection.

[0051] By integrating the high-angle ring light panel 2, the spherical integral light source assembly and the low-angle ring light panel 3 in the same housing 1, the device achieves comprehensive coverage of various detection requirements such as character detection, surface defect detection and contour dimension measurement. This integrated design not only greatly improves the detection efficiency, reduces the space occupancy rate of the equipment, and reduces the production cost, but also provides strong technical support for the intelligent and automated development of modern industrial production. Therefore, the utility model has broad application prospects and important practical significance in the fields of industrial automation, machine vision, etc.

[0052] Please refer again Figure 2 The housing 1 in the combined light source device of this embodiment has a more specific structural composition. The housing 1 mainly includes three parts: a barrel 101 , an upper pressing plate 102 and a lower pressing plate 103 .

[0053] First, the barrel 101 is the main part of the whole device, and its top and bottom are through-designed to allow light to pass freely. In addition, the inner wall of the barrel 101 is provided with an annular stopper 104, which is not only used to fix the internal components, but also ensures the relative position stability between the components.

[0054] Secondly, the upper pressing plate 102 is tightly covered on the top of the cylinder 101, and an inner ring member 105 is arranged on the side facing the inside of the cylinder 101. The high-angle annular light panel 2 is cleverly arranged around the inner ring member 105 to ensure that the light can be emitted at a predetermined angle and direction.

[0055] The spherical integral annular light panel 6 is placed on the annular stop block 104, while the bottom of the hemispherical reflector 5 is tightly abutted against the annular stop block 104, and the top of the hemispherical reflector 5 is in contact with the upper pressing plate 102. This layout not only ensures the stability of the spherical integral light source assembly and the uniformity of light transmission, but also makes the entire device compact and easy to install and maintain.

[0056] Finally, the lower pressing plate 103 is covered at the bottom of the cylinder 101, and the low-angle annular light board 3 is arranged between the bottom of the cylinder 101 and the lower pressing plate 103. Such a design enables the low-angle annular light board 3 to emit low-angle light for application scenarios such as surface defect detection.

[0057] In summary, the combined light source device in this embodiment achieves comprehensive coverage of various detection requirements through the ingenious layout of the carefully designed housing 1, the high and low angle ring light panels, and the spherical integral light source assembly. The device is not only compact in structure, easy to install and maintain, but also has efficient, stable and reliable performance, providing strong technical support for the intelligent and automated development of modern industrial production.

[0058] Please refer again Figure 2 For the combined light source device in this embodiment, we pay special attention to the thermal management design between the spherical integrating annular light plate 6 and the annular stopper 104. We cleverly set the thermal conductive silicone 9 between the two.

[0059] As a highly efficient heat conducting material, the thermally conductive silicone 9 is mainly used to enhance the heat conduction efficiency between the spherical integrating annular light board 6 and the annular stopper 104. When the spherical integrating annular light board 6 generates heat during operation, the thermally conductive silicone 9 can quickly conduct the heat to the annular stopper 104, and then dissipate the heat through other parts of the housing 1.

[0060] This design not only ensures the stability of the spherical integral ring light panel 6 during continuous operation and prevents performance degradation or damage due to overheating, but also improves the reliability and service life of the entire device. Therefore, the introduction of thermal conductive silicone 9 is an important innovation in our pursuit of efficient and stable light source device design.

[0061] Please refer again Figure 2 For the combined light source device in this embodiment, we note the design details of the lower pressing plate 103. A limiting groove 106 is specially provided on the lower pressing plate 103, and the shape and size of the groove are precisely designed to ensure that the low-angle annular light panel 3 can be firmly fixed therein.

[0062] The design of this clamping structure has several significant advantages. First, it improves the installation stability of the low-angle ring light panel 3 and prevents displacement or falling off due to vibration or impact. Second, the precise design of the limit groove 106 ensures accurate alignment between the low-angle ring light panel 3 and the housing 1, which is crucial to ensuring the performance and detection accuracy of the light source device. Finally, this clamping structure also simplifies the installation process and improves work efficiency.

[0063] Therefore, by providing the limiting groove 106 on the lower pressing plate 103 , we further improve the overall performance and reliability of the combined light source device, and provide a more powerful technical support for the intelligent and automated development of modern industrial production.

[0064] In this embodiment, in order to increase the stability and installation convenience of the combined light source device, the upper pressing plate 102 is specially designed with mounting holes. The specific positions and numbers of these mounting holes are determined according to actual application requirements and the structural design of the entire device.

[0065] The presence of the mounting holes on the upper pressing plate 102 enables the entire light source device to be stably mounted at a specific location at the detection site.

[0066] In addition, the design of the mounting holes also takes into account the heat dissipation performance of the device. Through reasonable layout and size design, the mounting holes can serve as heat dissipation channels to help timely discharge the heat generated inside the device and maintain the normal operating temperature of the device.

[0067] In this embodiment, we noticed an optimization of the design details: the imaging hole 4 is cleverly opened on the inner ring member 105 .

[0068] This design brings several significant advantages. First, the imaging hole 4 is set on the inner ring member 105, so that the camera (or other image acquisition device) can more directly obtain the image of the target object. Since the inner ring member 105 is located above the high-angle annular light board 2, after the light passes through the light board and irradiates the target object, it can be directly captured by the camera through the imaging hole 4, thereby reducing the loss of light during the propagation process and improving the clarity and accuracy of the image.

[0069] Secondly, this design also makes the structure of the entire device more compact. By integrating the imaging hole 4 on the inner ring member 105, we do not need to open an additional hole on the top of the housing 1, thereby saving space and making the appearance of the entire device neater.

[0070] In this embodiment, we carefully select and design the material and internal coating of the hemispherical reflector 5 .

[0071] First, the material of the hemispherical reflector 5 is organic glass, which is easy to shape, has a fast manufacturing speed, and is easy to make a larger hemispherical shell.

[0072] Secondly, we apply a diffuse reflection coating inside the hemispherical reflector 5. The diffuse reflection coating can effectively reflect the light evenly, so that the light can be evenly irradiated onto the target object, thereby improving the accuracy and stability of detection. The diffuse reflection coating also has excellent reflectivity and wear resistance, and can maintain its reflection performance for a long time.

[0073] Although the terms such as annular light panel and spherical integrated light source assembly are used more frequently in this application, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0074] The utility model provides a combined light source device, which integrates various light sources, namely a high-angle annular light panel, a spherical integral light source assembly and a low-angle annular light panel in the same shell, thereby being able to simultaneously meet the lighting requirements of character detection, surface defect detection and contour dimension measurement, greatly improving the detection efficiency, reducing space occupancy and production costs, and providing strong technical support for the intelligent and automated development of modern industrial production.

[0075] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A combined light source device, characterized in that: It comprises a housing (1), and a high-angle annular light panel (2), a spherical integrating light source assembly, and a low-angle annular light panel (3) which are arranged in sequence in the housing (1) along a vertical direction; wherein: The shell (1) is hollow inside, has an opening (7) at the bottom, and is provided with an imaging hole (4) at the top; The spherical integrating light source assembly comprises a hemispherical reflecting cover (5) and a spherical integrating annular light panel (6); the reflecting surface of the hemispherical reflecting cover (5) faces the opening (7), and the light emitting direction of the spherical integrating annular light panel (6) faces the reflecting surface of the hemispherical reflecting cover (5); a spherical integrating observation hole (8) is provided on the top of the hemispherical reflecting cover (5); The imaging hole (4), the central opening of the high-angle annular light panel (2), the spherical integrating observation hole (8), the central opening of the spherical integrating annular light panel (6), and the central opening of the low-angle annular light panel (3) are located on the same axis.

2. The combined light source device according to claim 1, characterized in that: The housing (1) comprises a cylinder (101), an upper pressing plate (102) and a lower pressing plate (103); The top and bottom of the cylinder (101) are penetrated, and an annular limiting block (104) is provided on the inner wall; The upper pressing plate (102) is covered on the top of the cylinder (101), and an inner ring member (105) is provided on a side of the upper pressing plate (102) facing the inside of the cylinder (101); The high-angle annular light panel (2) is arranged around the inner ring member (105); The spherical integrating annular light panel (6) is arranged on the annular limiting block (104); The bottom of the hemispherical reflector (5) abuts against the annular limit block (104), and the top of the hemispherical reflector (5) abuts against the upper pressing plate (102); The lower pressing plate (103) is covered on the bottom of the cylinder (101); The low-angle annular light panel (3) is arranged between the bottom of the cylinder (101) and the lower pressing plate (103).

3. The combined light source device according to claim 2, characterized in that: A heat-conducting silica gel (9) is provided between the spherical integrating annular light panel (6) and the annular limiting block (104).

4. The combined light source device according to claim 2, characterized in that: The lower pressing plate (103) is provided with a limiting groove (106) for the low-angle annular light panel (3) to be clamped.

5. The combined light source device according to claim 2, characterized in that: The upper pressing plate (102) is provided with a mounting hole.

6. The combined light source device according to claim 2, characterized in that: The imaging hole (4) is provided in the inner ring member (105).

7. The combined light source device according to claim 1, characterized in that: The hemispherical reflector (5) is made of organic glass.

8. The combined light source device according to claim 7, characterized in that: The interior of the hemispherical reflector (5) is coated with a diffuse reflection coating.

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