An image acquisition device

Abstract

This application provides an image acquisition device, including a mounting bracket, a camera assembly, a first lighting device, a second lighting device, and an adjustment component. The camera assembly is mounted on the mounting bracket. The first lighting device provides a surface light source for the camera assembly's imaging. The second lighting device is spaced apart from the imaging end of the camera assembly to provide a low-angle light source for the camera assembly's imaging. The adjustment component connects the second lighting device to the mounting bracket and has at least two mounting positions connected to the mounting bracket. In this image acquisition device, the camera assembly is used to acquire product images, the first lighting device provides the surface light source required for the camera assembly's imaging, and the distance between the second lighting device and the camera assembly can be adjusted by changing the mounting positions of the adjustment component connected to the mounting bracket. This allows the second lighting device to have good adjustability, meeting different supplementary lighting needs and improving the flexibility of the image acquisition device.

Description

Technical Field

[0001] This application relates to the field of image acquisition device technology, and specifically to an image acquisition device. Background Technology

[0002] After some products are manufactured, their appearance needs to be inspected in order to recycle and rework unqualified products. In the existing technology, most of these inspections are done manually, but after prolonged use, the human eye is prone to visual fatigue, which reduces work efficiency and accuracy.

[0003] Therefore, existing technologies have incorporated automated image acquisition devices to inspect product appearance, which greatly improves work efficiency and the accuracy of inspection and judgment. Existing image acquisition devices include a camera system and a light source system. The light source system provides stable and controllable lighting conditions for the camera system, enabling the camera system to obtain high-quality, high-contrast images, thereby ensuring the accuracy of subsequent judgments.

[0004] However, in existing image acquisition devices, the light source system is generally fixedly connected to the camera system, and the position of the light source is difficult to adjust. Such image acquisition devices capture images at a predetermined angle, position, and range, thereby reducing the applicability and flexibility of the image acquisition device. Utility Model Content

[0005] In view of this, and addressing the technical problem that the light source of the image acquisition device in the prior art is not adjustable, resulting in poor flexibility in the use of the image acquisition device, this application provides an image acquisition device, including a camera assembly, a second illumination device, and a first illumination device. The first illumination device can generate a surface light source to provide a uniform light field for the camera assembly to capture images, thereby improving the shooting effect. The distance between the second illumination device and the camera assembly is adjustable to improve the flexibility in the use of the image acquisition device.

[0006] This application provides an image acquisition device, including: Install the support; The camera assembly is mounted on the mounting bracket. The first lighting device is used to provide a surface light source for the camera assembly to take pictures; The second lighting device is spaced apart from the shooting end of the camera assembly and is used to provide a low-angle light source for the camera assembly to shoot. An adjustment assembly for connecting a second lighting device to a mounting bracket, having at least two mounting positions connected to the mounting bracket.

[0007] Compared with the prior art, the image acquisition device of this application includes a camera assembly, a first lighting device, a second lighting device, and a mounting bracket. The camera assembly is used to acquire product images, and the mounting bracket is used to mount the camera assembly and the first lighting device. The first lighting device provides a surface light source for the camera assembly to capture images, and the surface light source can generate a uniform light field to ensure the shooting effect. The second lighting device is spaced apart from the shooting end of the camera assembly, thereby providing a low-angle light source for the camera assembly to capture images, and the low-angle light source can generate a dark field light effect. An adjustment component is provided to connect the second lighting device and the mounting bracket. The adjustment component is spaced apart from the first lighting device and the camera assembly. The adjustment component has mounting positions that connect to the mounting bracket, and there are at least two mounting positions. By changing the mounting positions that the adjustment component connects to the mounting bracket, the distance between the second lighting device and the camera assembly can be adjusted, thereby making the second lighting device more adjustable to meet the lighting needs of light sources at different distances and improving the flexibility of the image acquisition device.

[0008] Preferably, the mounting bracket includes: The shooting hole is located at the shooting end of the camera assembly and is set coaxially with the camera assembly; The first lighting device is arranged perpendicular to the axis of the shooting hole, and both the first lighting device and the second lighting device emit light towards the subject being photographed. The first lighting device is provided with a first through hole, which is coaxially arranged with the shooting hole.

[0009] In this embodiment, the first lighting device and the second lighting device can emit light in the direction of the object being photographed, thereby providing a better shooting environment for the object, meeting the needs of image acquisition, and improving the image acquisition effect of the camera components.

[0010] Preferably, the mounting bracket further includes: At least three mounting ends are arranged around the periphery of the shooting hole for mounting the adjustment components; Wherein, the length extension direction of the adjustment component is parallel to the direction of the shooting hole axis, and the length extension direction of the second lighting device is parallel to the length extension direction of the mounting side end; The light from the first illumination device is parallel to the axial direction of the imaging hole; The light from the second illumination device has a first included angle θ1 with the axis of the imaging hole, where 0 ≤ θ1 ≤ 60°.

[0011] In this embodiment, the mounting side provides an adjustable component mounting position, which facilitates the installation of the second lighting device. This allows the second lighting device to generate light from a different direction than the first lighting device, and the light direction of the second lighting device can be adjusted within a certain range to provide illumination from different angles, meet shooting requirements, and reduce the impact of ambient light on the shooting effect.

[0012] Preferably, the adjustment component includes: A connecting plate is used to connect the second lighting device to the mounting bracket; the mounting station is provided on the connecting plate, and the mounting station includes adjustment holes, which are spaced apart along the length extension direction of the connecting plate. The first mounting hole is located on the mounting bracket and is used to mate with the adjustment hole.

[0013] In this embodiment, by setting a connecting plate and providing at least two adjustment holes on the connecting plate, the connection position between the connecting plate and the mounting bracket can be adjusted, thereby changing the distance between the second lighting device and the camera assembly.

[0014] Preferred options also include: A limiting protrusion is located at the end of the connecting plate away from the connecting bracket and protrudes towards the axis of the shooting hole. A limiting groove is provided on the second lighting device for connecting with a limiting protrusion; In particular, along the length extension direction of the limiting groove, the end of the limiting groove is provided with an opening for the insertion of the limiting protrusion.

[0015] In this embodiment, the end of the limiting groove along its length is provided with an opening, allowing the limiting protrusion to be inserted into the limiting groove through the opening, thereby enabling the second lighting device to be connected to the connecting plate, simplifying the connection method and improving adjustment flexibility.

[0016] Preferably, the limiting groove is divided into a first limiting groove and a second limiting groove, and the limiting protrusion is divided into a first limiting protrusion and a second limiting protrusion. The first limiting groove has a first opening parallel to the axial direction of the shooting hole, and the first limiting protrusion cooperates with the first limiting groove; The second limiting groove has a second opening parallel to the radial direction of the shooting hole, and the second limiting protrusion cooperates with the second limiting groove; The first limiting groove and the second limiting groove are distributed at intervals parallel to the axial direction of the shooting hole.

[0017] In this embodiment, the first opening and the second opening are set in different directions, which can realize multi-directional limiting and increase the stability of the connection between the connecting plate and the second lighting device.

[0018] Preferably, there is at least one second limiting groove and at least one first limiting groove; The first limiting groove is located at the end of the second limiting groove, and the first opening is located at the end of the first limiting groove away from the second limiting groove.

[0019] In this embodiment, the first limiting groove is disposed at the end of the second limiting groove, which can reasonably distribute the first limiting groove and the second limiting groove to ensure the structural strength of the connection between the connecting plate and the second lighting device, while also ensuring a good connection effect.

[0020] Preferred options also include: A limiting hole, at least one, is provided on the connecting plate; Install at least one blind hole on the second lighting device; The limiting hole and the mounting blind hole are coaxially arranged to allow the same connector to be inserted; In this embodiment, the setting of limiting holes and blind mounting holes can increase the connection between the second lighting device and the connecting plate, and ensure the working stability of the image acquisition device during use.

[0021] At least one weight-reducing hole is provided on the connecting plate; the weight-reducing holes are distributed at intervals along the length extension direction of the connecting plate. The adjustment hole is a strip-shaped hole, and its length extension direction is parallel to the length extension direction of the connecting plate.

[0022] In this embodiment, the weight-reducing holes can reduce the weight of the connecting plate and reduce the amount of materials used in its manufacture, thus saving costs.

[0023] Preferred options also include: The connecting bracket includes a first mounting plate and a second mounting plate that are vertically connected. The first mounting plate is used to connect with the connecting plate, and the second mounting plate is used to connect with the mounting support. The first mounting hole is provided on the first mounting plate, and the second mounting plate is provided with a second mounting hole that mates with the mounting bracket.

[0024] In this embodiment, the connecting bracket has an L-shaped structure, which can increase the connection area between the connecting bracket and the mounting support and improve the connection effect.

[0025] Preferably, the mounting bracket includes: Mounting bracket for mounting camera components; The mounting base plate is connected to the mounting bracket for mounting the first lighting device; The shooting hole is located on the mounting base plate, and the adjustment component is connected to the mounting base plate.

[0026] In this embodiment, the mounting base plate can increase the connection area with the first lighting device, improve the connection stability, and facilitate the setting of the shooting hole to ensure the shooting effect.

[0027] Preferred options also include: The robotic arm is movably connected to the end of the mounting bracket furthest from the mounting base.

[0028] In this embodiment, the robotic arm can realize the displacement of the image acquisition device, ensuring multi-angle and multi-directional shooting, and improving the flexibility of the image acquisition device. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural schematic diagram of an image acquisition device provided in an embodiment of this application; Figure 2 This is a partial three-dimensional structural schematic diagram of an image acquisition device provided in an embodiment of this application; Figure 3 yes Figure 1 A magnified view of part A; Figure 4 yes Figure 2 A magnified view of part B; Figure 5 yes Figure 2 A magnified view of a portion of C.

[0030] Reference numerals: 1. Mounting support; 2. Camera assembly; 3. First lighting device; 4. Second lighting device; 5. Adjustment assembly; 6. Robotic arm; 11. Shooting hole; 12. Mounting bracket; 13. Mounting base plate; 41. Installation blind hole; 42. First limiting groove; 43. Second limiting groove; 51. Connecting bracket; 52. Connecting plate; 511. First mounting hole; 512. Second mounting hole; 513. First mounting plate; 514. Second mounting plate; 521. Adjustment hole; 522. Limiting hole; 523. Weight reduction hole. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0032] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0033] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0034] The present application will now be described in further detail with reference to the accompanying drawings, see below. Figures 1 to 5 illustrate.

[0035] This application provides an image acquisition device for capturing images of specific locations on a product to obtain images of the product's appearance. These images can then be analyzed and judged by an image analysis system to detect the product's appearance quality.

[0036] Specifically, the image acquisition device includes a mounting bracket 1, a camera assembly 2, a first illumination device 3, a second illumination device 4, and an adjustment assembly 5, such as... Figures 1 to 5 As shown, the mounting bracket 1 consists of two parts, upper and lower. The mounting bracket 1 includes a mounting bracket 12 and a mounting base plate 13. The mounting bracket 12 is an H-shaped rectangular frame structure, and the mounting base plate 13 is a plate-like structure. The camera assembly 2 is located in the space formed by the mounting bracket 12. The fixed end of the camera assembly 2 is connected to the mounting bracket 12, and the shooting end of the camera assembly 2 faces the mounting base plate 13. The mounting base plate 13 is provided with a shooting hole 11, which is a through hole. The shooting hole 11 is coaxially arranged with the camera assembly 2, and the size of the shooting hole 11 can be set according to the shooting requirements of the camera assembly 2.

[0037] Among them, such as Figures 2 to 5As shown, the first illumination device 3 is a plate-shaped structure. It is connected to the end of the mounting base 13 furthest from the camera assembly 2. The first illumination device 3 is perpendicular to the axis of the shooting hole 11 and emits light towards the object being photographed, generating a surface light source. This surface light source can produce a uniform light field, thus providing the camera assembly 2 with a uniform, controllable, and shadow-free illumination environment. This eliminates local overexposure, underexposure, and glare, ensuring the image acquisition effect and consequently the accuracy of subsequent product appearance quality inspection. The first illumination device 3 has a first through hole, which is coaxially arranged with the shooting hole 11 and has the same size as the shooting hole 11, to ensure the shooting effect of the camera assembly 2. It should be noted that in this application, the camera assembly 2 includes a fixed end and a shooting end. The shooting end is the shooting end of the lens, and the fixed end is positioned opposite to it. The fixed end is connected to the mounting bracket 12, and the shooting end does not contact the mounting base 13, meaning the camera assembly 2 will not enter the shooting hole 11.

[0038] like Figures 2 to 5 As shown, the mounting base 13 includes mounting sides, with at least three mounting sides arranged around the periphery of the shooting hole 11, and a distance between the mounting sides and the shooting hole 11. When there are three mounting sides, the mounting base 13 has a triangular structure. In this embodiment, there are four mounting sides, and the mounting base 13 has a rectangular plate structure. One end of the adjustment component 5 is connected to the mounting side, and the other end of the adjustment component 5 is connected to the second lighting device 4, so that the second lighting device 4 is spaced apart from the shooting end of the camera component 2, thereby enabling the second lighting device 4 to provide a low-angle light source for the shooting of the camera component 2. At least four adjustment components 5 are provided, with at least one adjustment component 5 connected to each mounting side, thus enabling four second lighting devices 4 to be provided. Of course, the actual number of second lighting devices 4 can be selected according to the usage requirements, and no specific limit is made here. However, in this embodiment, it is preferable to provide four second lighting devices 4, which form a U-shape, with each second lighting device 4 connected to two adjustment components 5.

[0039] like Figure 2 As shown, the length extension direction of the second lighting device 4 is parallel to the mounting side end and perpendicular to the axis of the imaging hole 11; in this application, the axis of the imaging hole 11 is parallel to the first direction, and the length extension direction of the second lighting device 4 is perpendicular to the first direction; as Figure 2As shown, the adjustment component 5 extends parallel to the first direction, so that the second lighting device 4 and the camera component 2 are spaced apart in the first direction, thereby providing a low-angle light source for the camera component 2 to produce a dark field lighting effect; both the first photographing device and the second lighting device 4 emit light towards the subject, the light from the first lighting device 3 is parallel to the first direction, and the light emission direction of the second lighting device 4 is towards the axis of the shooting hole 11, supplementing the light source around the bottom of the product. In actual shooting, as... Figure 1 , Figure 2 As shown, the product is located within a rectangular space formed by multiple second lighting devices 4 and adjustment components 5. Both the first lighting device 3 and the second lighting device 4 emit light towards the object being photographed. The first lighting device 3 provides a large surface light source to the end of the product facing the camera component 2, providing uniform and soft main light and eliminating unsightly shadows. The second lighting device 4 provides a smaller light source at the side end of the product, thereby eliminating edge shadows and illuminating the edges of the product. The first lighting device 3 and the second lighting device 4 work together to create a shadowless and uniform imaging environment, while also eliminating ambient light interference, achieving imaging stability, and improving the quality of the acquired image.

[0040] In this application, the adjustment component 5 is provided with at least two installation positions. The adjustment component 5 is connected to the installation support 1 through any one of the installation positions. The installation positions are distributed at intervals along the first direction. By changing the installation position where the adjustment component 5 is connected to the installation support 1, the setting distance between the second lighting device 4 and the camera component 2 in the first direction can be adjusted, thereby making the second lighting device 4 more adjustable to meet the needs of different supplementary lighting effects and improve the flexibility of the image acquisition device.

[0041] The light angle of the second lighting device 4 is adjustable. The light from the second lighting device 4 has a first included angle θ1 with the axis of the shooting hole 11, where 0≤θ1≤60°. That is, the second lighting device 4 can rotate up and down 60° in the direction perpendicular to the axis of the shooting hole 11. This allows the lighting angle of the second lighting device 4 on the product to be selected according to actual needs, so as to meet different shooting requirements and improve the flexibility of the image acquisition device.

[0042] It should be noted that the first lighting device 3 and the second lighting device 4 of this application can be used simultaneously or individually to detect different types of defects on the product surface.

[0043] Furthermore, provide a detailed description of the installation workstation; such as... Figures 2 to 4As shown, the adjustment assembly 5 includes a connecting plate 52, which is a plate-shaped structure extending parallel to the first direction. The top of the connecting plate 52 is connected to the mounting base plate 13, and the bottom of the connecting plate 52 is connected to the second lighting device 4. An installation station is located on the top of the connecting plate 52 and includes an adjustment hole 521. The adjustment hole 521 penetrates the connecting plate 52 perpendicular to the first direction, and there are at least two adjustment holes 521 spaced apart along the first direction. The mounting base plate 13 has a first mounting hole 511 on its side parallel to the first direction. The first mounting hole 511 and the adjustment hole 521 can be correspondingly fitted to allow the same connector to be inserted, thereby connecting the connecting plate 52 to the mounting base plate 13. By fitting different adjustment holes 521 with the first mounting hole 511, the connection position of the connecting plate 52 to the mounting base plate 13 in the first direction is changed, thereby changing the distance between the second lighting device 4 and the camera assembly 2 in the first direction, thus achieving flexible adjustment of the position of the second lighting device 4.

[0044] Furthermore, such as Figures 3 to 5 As shown, the connecting plate 52 has reinforcing plates at both ends parallel to the first direction. The reinforcing plates protrude in a direction away from the shooting hole 11 to enhance the structural strength of the connecting plate 52.

[0045] In another alternative embodiment, such as Figure 4 As shown, the image acquisition device also includes a connecting bracket 51, which has an L-shaped structure. The connecting bracket 51 includes a first mounting plate 513 and a second mounting plate 514 connected vertically. The first mounting plate 513 is used to connect to the connecting plate 52, and the second mounting plate 514 is used to connect to the mounting base plate 13. A first mounting hole 511 is provided on the first mounting plate 513, and a second mounting hole 512 is provided on the second mounting plate 514 to mate with the mounting support 1. The second mounting plate 514 is connected to the side of the mounting base plate 13 facing away from the first lighting device 3. The second mounting hole 512 extends parallel to the first direction through the second mounting plate 514. Simultaneously, the mounting base plate 13 has a blind hole that mates with the second mounting hole 512. This blind hole is coaxially arranged with the second mounting hole 512 to allow the insertion of screws or other connecting parts, thereby achieving a stable connection between the connecting bracket 51 and the mounting base plate 13. In this embodiment, by providing the connecting bracket 51, the connection area between the connecting bracket 51 and the mounting base plate 13 is increased, thereby indirectly increasing the stability of the connection between the connecting plate 52 and the mounting support 1, ensuring the operational stability of the image acquisition device.

[0046] Among them, such as Figure 4As shown, the adjustment hole 521 is a strip-shaped hole that extends parallel to the first direction and its length is greater than that of the first mounting hole 511. The adjustment hole 521 is designed so that the connection position of the connecting plate 52 and the first mounting plate 513 can be finely adjusted, further improving the adjustment flexibility of the setting position of the second lighting device 4.

[0047] Based on any of the above embodiments, the connection between the second lighting device 4 and the connecting plate 52 will be further described; such as Figure 5 As shown, the connecting plate 52 has a limiting protrusion on the side facing the axis of the shooting hole 11. The limiting protrusion is located at the bottom of the connecting plate 52 and protrudes in the direction of the axis of the shooting hole 11. The second lighting device 4 has a limiting groove on the side facing the connecting plate 52. The length extension direction of the limiting groove is parallel to the length extension direction of the second lighting device 4. The end of the length extension of the limiting groove has an opening, so that the limiting protrusion can be inserted into the limiting groove through the opening. Then, with the cooperation of the limiting groove and the limiting protrusion, the second lighting device 4 and the connecting plate 52 can be connected, simplifying the connection method and improving the adjustment flexibility.

[0048] Furthermore, such as Figure 5 As shown, the limiting groove is divided into a first limiting groove 42 and a second limiting groove 43, and the limiting protrusion is divided into a first limiting protrusion and a second limiting protrusion. The first limiting protrusion mates with the first limiting groove 42, and the second limiting protrusion mates with the second limiting groove 43. The first limiting groove 42 has a first opening parallel to a first direction, and the second limiting groove 43 has a second opening parallel to the radial direction of the imaging hole 11. The opening directions of the first and second openings are perpendicular. There is at least one second limiting groove 43 and at least one first limiting groove 42. The first limiting groove 42 and the second limiting groove 43 are distributed parallel to the first direction at intervals. The first limiting groove 42 is located at the end of the second limiting groove 43, that is, the first limiting groove 42 is located at the upper end and / or lower end of the second limiting groove 43, and the first opening is located at the end of the first limiting groove 42 away from the second limiting groove 43, and at the same time opens in the direction away from the second limiting groove 43; that is, the first opening of the first limiting groove 42 located at the upper end of the second limiting groove 43 faces upward, and the first opening of the first limiting groove 42 located at the lower end of the second limiting groove 43 faces downward.

[0049] In this embodiment, with the cooperation of the first limiting groove 42 and the second limiting groove 43, the connection force position between the second lighting device 4 and the connecting plate 52 can be increased, thereby improving the connection stability. At the same time, by setting the opening directions of the first opening and the second opening to be different, the multi-angle and multi-directional limiting connection between the second lighting device 4 and the connecting plate 52 can be increased, thereby increasing the connection stability between the connecting plate 52 and the second lighting device 4.

[0050] It should be noted that the first limiting protrusion matches the structure of the first limiting groove 42, and the second limiting protrusion matches the structure of the second limiting groove 43.

[0051] In another alternative embodiment, such as Figure 5 As shown, the connecting plate 52 is also provided with a limiting hole 522, which penetrates the connecting plate 52 perpendicular to the first direction. The second lighting device 4 is also provided with a blind mounting hole 41, which opens on the side of the second lighting device 4 facing the connecting plate 52. The blind mounting hole 41 is coaxially arranged with the limiting block to allow the insertion of screws and other connecting parts to realize the connection between the second lighting device 4 and the connecting plate 52.

[0052] In another optional embodiment, the connecting plate 52 is provided with both a limiting hole 522 and a limiting protrusion, and the second lighting device 4 is provided with both a mounting blind hole 41 and a limiting groove. The limiting hole 522 passes through the limiting protrusion, and the mounting blind hole 41 is set in the limiting groove. The insertion formed by the cooperation of the limiting groove and the limiting protrusion satisfies the need for quick installation and positioning. Furthermore, the mounting blind hole 41 and the limiting hole 522 cooperate to achieve a screw locking connection, thereby improving the connection stability between the second lighting device 4 and the connecting plate 52.

[0053] Among them, such as Figures 2 to 5 As shown, the connecting plate 52 is provided with at least one weight reduction hole 523. When multiple weight reduction holes 523 are provided, they are distributed parallel to the first direction at intervals. The weight reduction holes 523 can reduce the weight of the connecting plate 52 and reduce the amount of manufacturing materials, thus saving costs.

[0054] Based on any of the above embodiments, further improvements can be made to the image acquisition device; such as... Figure 1 , Figure 2 As shown, the image acquisition device also includes a robotic arm 6, which is movably connected to the end of the mounting bracket 12 away from the mounting base plate 13. This allows the robotic arm 6 to drive the camera assembly 2, the first lighting device 3, and the second lighting device 4 to rotate or move simultaneously, changing the shooting angle of the image acquisition device. This enables the image acquisition device to perform multi-angle and multi-directional shooting, improving the flexibility of the image acquisition device.

[0055] It should be noted that the various embodiments of this application can be arbitrarily combined into new embodiments, provided that the solutions do not conflict and the technical solutions can coexist.

[0056] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An image capturing device, characterized by, include: Mounting support (1); The camera assembly (2) is mounted on the mounting bracket (1); The first lighting device (3) is used to provide a surface light source for the camera assembly (2) to capture images; The second lighting device (4) is spaced apart from the shooting end of the camera assembly (2) and is used to provide a low-angle light source for shooting by the camera assembly (2); Adjustment component (5) is used to connect the second lighting device (4) to the mounting bracket (1), and has at least two installation positions connected to the mounting bracket (1).

2. The image acquisition device of claim 1, wherein, The mounting bracket (1) includes: The shooting hole (11) is located at the shooting end of the camera assembly (2) and is coaxially set with the camera assembly (2); The first lighting device (3) is set perpendicular to the axis of the shooting hole (11), and both the first lighting device (3) and the second lighting device (4) emit light in the direction of the subject being photographed; The first lighting device (3) is provided with a first through hole, which is coaxially arranged with the shooting hole (11).

3. The image acquisition device of claim 2, wherein, The mounting bracket (1) further includes: At least three mounting sides are arranged around the shooting hole (11) for mounting the adjustment assembly (5). Wherein, the length extension direction of the adjustment component (5) is parallel to the axis direction of the shooting hole (11), and the length extension direction of the second lighting device (4) is parallel to the length extension direction of the mounting side end; The light from the first lighting device (3) is parallel to the axial direction of the shooting hole (11); The light from the second lighting device (4) has a first included angle θ1 with the axis of the shooting hole (11), where 0≤θ1≤60°.

4. The image acquisition device according to claim 2, characterized in that, The adjustment component (5) includes: A connecting plate (52) is used to connect the second lighting device (4) to the mounting bracket (1); the mounting station is located on the connecting plate (52), and the mounting station includes adjustment holes (521), which are spaced apart along the length of the connecting plate (52); The first mounting hole (511) is provided on the mounting bracket (1) and is used to cooperate with the adjustment hole (521).

5. The image acquisition device according to claim 4, characterized in that, Also includes: The limiting protrusion is located at the end of the connecting plate (52) away from the connecting bracket (51) and protrudes in the direction of the axis of the shooting hole (11); A limiting groove is provided on the second lighting device (4) for connecting with a limiting protrusion; In particular, along the length extension direction of the limiting groove, the end of the limiting groove is provided with an opening for the insertion of the limiting protrusion.

6. The image acquisition device according to claim 5, characterized in that, The limiting groove is divided into a first limiting groove (42) and a second limiting groove (43), and the limiting protrusion is divided into a first limiting protrusion and a second limiting protrusion. The first limiting groove (42) is provided with a first opening parallel to the axial direction of the shooting hole (11), and the first limiting protrusion cooperates with the first limiting groove (42); The second limiting groove (43) is provided with a second opening parallel to the radial direction of the shooting hole (11), and the second limiting protrusion cooperates with the second limiting groove (43); The first limiting groove (42) and the second limiting groove (43) are distributed at intervals parallel to the axial direction of the shooting hole (11).

7. The image acquisition device according to claim 6, characterized in that, There is at least one second limiting groove (43) and at least one first limiting groove (42); The first limiting groove (42) is located at the end of the second limiting groove (43), and the first opening is located at the end of the first limiting groove (42) away from the second limiting groove (43).

8. The image acquisition device according to claim 4, characterized in that, Also includes: A limiting hole (522), at least one, is provided on the connecting plate (52); At least one blind hole (41) is installed on the second lighting device (4); The limiting hole (522) and the mounting blind hole (41) are coaxially arranged so that the same connector can be inserted; And / or, also includes: At least one weight-reducing hole (523) is provided on the connecting plate (52); the weight-reducing holes (523) are distributed at intervals along the length extension direction of the connecting plate (52); The adjustment hole (521) is a strip-shaped hole, and its length extension direction is parallel to the length extension direction of the connecting plate (52).

9. The image acquisition device according to claim 4, characterized in that, Also includes: The connecting bracket (51) includes a first mounting plate (513) and a second mounting plate (514) that are vertically connected. The first mounting plate (513) is used to connect with the connecting plate (52), and the second mounting plate (514) is used to connect with the mounting support (1). The first mounting hole (511) is provided on the first mounting plate (513), and the second mounting plate (514) is provided with a second mounting hole (512) that cooperates with the mounting bracket (1).

10. The image acquisition device according to claim 2, characterized in that, The mounting bracket (1) includes: Mounting bracket (12) for mounting camera assembly (2); The mounting base plate (13) is connected to the mounting bracket (12) for mounting the first lighting device (3). The shooting hole (11) is located on the mounting base plate (13), and the adjustment component (5) is connected to the mounting base plate (13). And / or, also includes: The robotic arm (6) is movably connected to the end of the mounting bracket (12) away from the mounting base plate (13).

Images