Line scan camera light supplementing device capable of being adjusted in three-axis mode

Abstract

The utility model relates to a three-axis adjustable line scanning camera light supplementing device, which comprises a line scanning camera and a line laser arranged beside the line scanning camera, and three-axis adjusting assemblies are arranged below the line scanning camera and the line laser. The device is simple in structure, reasonable in design and convenient to use, the line laser is used for supplementing light for the line scanning camera, the imaging quality and stability are improved, meanwhile, the energy consumption is reduced, the position and angle of the line laser are adjusted through the three-axis adjusting assembly, and the flexibility is high.

Description

Technical Field

[0001] This utility model relates to a three-axis adjustable line scan camera fill light device. Background Technology

[0002] In existing technologies, any line scan camera and its supplementary lighting equipment operating in industrial production lines, outdoor environments, or other complex scenarios—such as industrial inspection cameras, road monitoring systems, and vision sensors on high-speed production lines—all suffer from image quality degradation due to insufficient light. Current solutions typically use high-power supplementary lights to illuminate the entire working area, but this approach introduces several problems: first, large-area illumination leads to high power consumption, increasing equipment operating costs; second, light source scattering and inaccurate supplementary lighting areas can result in uneven imaging; and third, the supplementary lights are bulky and fixedly installed, making them inflexible for different application scenarios. Furthermore, vibrations and impacts during operation can cause optical axis misalignment, further affecting the supplementary lighting effect and the continuity of system operation. Utility Model Content

[0003] This invention addresses the aforementioned problems by providing a three-axis adjustable line scan camera illumination device that is easy to use, achieves efficient and low-power illumination of the imaging area of ​​the line scan camera, and effectively overcomes the problems of power consumption, heat dissipation, and stability of traditional illumination solutions.

[0004] This utility model is constructed as follows: it includes a line scan camera and a line laser disposed next to the line scan camera, and a three-axis adjustment assembly is disposed below both the line scan camera and the line laser.

[0005] Furthermore, the three-axis adjustment assembly includes an adjustment plate, a fixed plate, and a base arranged sequentially from top to bottom. The fixed plate has liftable knob covers on its front and rear sides, with the two knob covers arranged diagonally. A semi-circular support point is provided above the knob cover, which contacts the adjustment plate. An adjustment screw is provided below the knob cover, which engages with a threaded hole on the movable plate.

[0006] Furthermore, a spring sheet is provided between the adjusting plate and the fixed plate, and the two ends of the spring sheet are respectively connected to the adjusting plate and the fixed plate.

[0007] Furthermore, a support assembly is provided between the adjusting plate and the fixed plate. The support assembly includes an arc-shaped body disposed on the lower surface of the adjusting plate and a cylinder disposed on the upper surface of the fixed plate, wherein the arc-shaped body and the cylinder are in contact.

[0008] Furthermore, slots are provided at the front and rear diagonal positions of the adjustment plate.

[0009] Furthermore, the base includes a fixed base and a movable base that can be raised and lowered relative to the fixed base. A fixed body is provided at the rear of the fixed base, and a rotating body is provided at the front of the fixed body. The rotating body is hinged to the fixed base at the middle. Two rotating arms extend from the rotating body. One of the rotating arms abuts against a lifting column provided at the lower part of the movable base. A lifting adjustment screw is passed through the fixed body, and the other rotating arm abuts against the front end of the lifting adjustment screw.

[0010] Furthermore, each of the two rotating arms is equipped with a semi-circular body, which contacts the lifting adjustment screw and the lifting column, respectively.

[0011] Furthermore, a guide rail is provided on the outer side of the fixed base, and a guide groove is provided on the inner side of the movable base, with the guide rail and the guide groove slidingly engaged; a limit groove is provided at the rear of the fixed base, and a limit block is provided at the rear of the movable base, with the limit block confined within the limit groove and able to slide along the limit groove.

[0012] Furthermore, an adjustment knob is provided at the rear end of the lifting adjustment screw.

[0013] Furthermore, a mounting bracket is provided below the line scanning camera and the line laser.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention has a simple structure and reasonable design. It uses a line laser as the supplementary light source for the line scanning camera. By setting a three-axis adjustment component, the emission angle and position of the line laser are adjusted so that its beam is precisely coplanar with the photosensitive area of ​​the line scanning camera. Compared with traditional large-area supplementary lights, the laser supplementary light of this device can achieve precise coverage of the imaging area of ​​the line scanning camera, avoid light waste, and significantly improve imaging brightness and quality. It solves the problems of high energy consumption, inaccurate optical axis, and poor imaging quality of traditional supplementary lighting methods, and significantly improves the applicability and reliability of the vision inspection system in complex industrial and outdoor scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 2 This is a partial structural diagram of an embodiment of the present utility model. Figure 1 ;

[0017] Figure 3 This is a partial structural diagram of an embodiment of the present utility model. Figure 2 ;

[0018] Figure 4 This is a schematic diagram of the three-axis adjustment assembly structure according to an embodiment of the present invention;

[0019] Figure 5This is an exploded view of the three-axis adjustment assembly according to an embodiment of the present invention;

[0020] Figure 6 This is a perspective view of the three-axis adjustment assembly according to an embodiment of the present invention;

[0021] Figure 7 A cross-sectional view of the three-axis adjustment assembly according to an embodiment of this utility model. Figure 1 ;

[0022] Figure 8 A cross-sectional view of the three-axis adjustment assembly according to an embodiment of this utility model. Figure 2 . Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example: Figure 1-8 As shown in the present invention, a three-axis adjustable line scan camera supplementary lighting device is provided, including a line scan camera 1 and a line laser 2 disposed next to the line scan camera. A three-axis adjustment component 3 is disposed below both the line scan camera and the line laser.

[0025] This invention uses a line laser as a supplementary light source. By adjusting the emission angle and position of the line laser, its beam is precisely coplanar with the photosensitive area of ​​the line scanning camera. Compared with traditional large-area supplementary lights, the laser supplementary light of this device can achieve precise coverage of the imaging area of ​​the line scanning camera, avoid light waste, and significantly improve imaging brightness and quality.

[0026] The three-axis adjustment assembly allows for flexible adjustment of the laser's optical axis position and direction, ensuring it is always aligned with the photosensitive area of ​​the line scan camera. This design is suitable for a variety of industrial applications and offers high adaptability and convenience.

[0027] In this embodiment of the utility model, the three-axis adjustment assembly 3 includes an adjustment plate 301, a fixed plate 302, and a base 303 arranged sequentially from top to bottom. The fixed plate has a liftable knob top cover 304 on the front and rear upper parts, and the two knob top covers are arranged diagonally. A semi-circular support point 305 is provided on the top of the knob top cover, and the semi-circular support point is in contact with the adjustment plate. An adjustment screw 306 is provided below the knob top cover, and the adjustment screw cooperates with a threaded hole 307 provided on the movable plate.

[0028] By adjusting the two knob top covers, the adjustment plate can be raised. The relative height difference between the two knob top covers allows for adjustment of the front-to-back and left-to-right tilt angles of the fill light system. By rotating the two knob top covers, users can precisely control the front-to-back and horizontal angles of the fill light device relative to the line scan camera to ensure uniform fill light, accurate light direction, and optimized shooting results.

[0029] In this embodiment of the utility model, in order to cope with the vibration and impact that the equipment may be subjected to in the industrial environment, a spring sheet 308 is provided between the adjusting plate and the fixed plate. The spring sheet can be a spring, and the two ends of the spring sheet are respectively connected to the adjusting plate and the fixed plate by bolts 309.

[0030] By absorbing external vibrations through springs, the optical axis alignment stability of the line laser and the line scanning camera is ensured, thereby guaranteeing the reliable operation of the system in a vibrating environment.

[0031] In this embodiment of the utility model, a support component is further provided between the adjusting plate and the fixed plate. The support component includes an arc-shaped body 310 disposed on the lower surface of the adjusting plate and a cylinder 311 disposed on the upper surface of the fixed plate. The arc-shaped body is in contact with the cylinder. The arc-shaped body is hemispherical.

[0032] In this embodiment of the utility model, slots 312 are provided at the front and rear diagonal positions of the adjustment plate to avoid the knob top cover, and the outer edge of the knob top cover extends beyond the edge of the adjustment plate and the fixing plate.

[0033] In this embodiment of the utility model, the base includes a fixed base 313 and a movable base 314 that can be raised and lowered relative to the fixed base. The movable base is fixed to the fixed plate. A fixed body 315 is provided at the rear of the fixed base, and a rotating body 316 is provided at the front of the fixed body. The middle part of the rotating body is hinged to the inner wall of the fixed base. The rotating body extends two rotating swing arms 317. One of the rotating swing arms abuts against a lifting column 318 provided at the lower part of the movable base. A lifting adjustment screw 319 is passed through the fixed body. The lifting adjustment screw cooperates with a threaded hole provided at the middle of the fixed body. The other rotating swing arm abuts against the front end of the lifting adjustment screw.

[0034] When the height of the line scan camera or line laser needs to be adjusted, the lifting adjustment screw is rotated to move the rotating body, thereby pushing the movable base to rise or fall.

[0035] In this embodiment of the utility model, a semi-circular body 320 is provided on each of the two rotating swing arms, and the two semi-circular bodies are in contact with the lifting adjustment screw and the lifting column, respectively.

[0036] In this embodiment of the utility model, a guide rail 321 is provided on the outer side of the fixed base, and a guide groove 322 is provided on the inner side of the movable base, with the guide rail and the guide groove slidingly engaged.

[0037] In this embodiment of the utility model, a limiting groove 323 is provided behind the fixed base, and a limiting block 324 is provided behind the movable base. The limiting block is limited within the limiting groove and can slide along the limiting groove.

[0038] In this embodiment of the utility model, an adjustment knob 325 is provided at the rear end of the lifting adjustment screw.

[0039] In this embodiment of the invention, during actual use, the height, front-to-back tilt angle, and left-to-right tilt angle of the line scan camera's supplementary lighting device can be precisely controlled by adjusting the three-axis adjustment component, thereby achieving three-axis adjustment to meet the needs of different usage scenarios and environmental conditions.

[0040] In this embodiment of the utility model, a fixed frame 4 is provided below the line scanning camera and the line laser, and each fixed frame is connected to the adjustment plate of the corresponding three-axis adjustment component.

[0041] The aforementioned fixing frame includes an upper connecting block 41, a middle connecting block 42, and a lower connecting block 43 arranged sequentially from top to bottom, with the lower connecting block connected to the adjusting plate.

[0042] The aforementioned fixing frame may be provided with a mounting bracket 44 on its outer side.

[0043] In this embodiment of the invention, the supplementary lighting system formed by the line scan camera and the line laser has the following functions:

[0044] 1. Precise illumination to improve image quality: Line laser: Responsible for emitting a high-brightness line laser beam. Compared with traditional point or area light sources, line laser can more efficiently cover the light-sensing range of the line scan camera, ensuring the uniformity of illumination throughout the imaging row, thereby significantly improving the image quality of the line scan camera in low-light environments.

[0045] 2. Achieving coplanar optical axes to ensure system accuracy: The synergistic effect of the line scan camera and line laser: The beam of the line laser needs to be precisely coplanar with the imaging optical axis of the line scan camera. This optical axis alignment is crucial to ensuring image sharpness and consistent illumination. Through their cooperation, the laser illumination system can effectively avoid the impact of optical axis misalignment on image quality, thereby improving the reliability and accuracy of the entire vision inspection system.

[0046] 3. Improved energy utilization efficiency and reduced energy consumption: The high efficiency of laser supplementary lighting: Line lasers precisely cover the imaging area, avoiding the waste of light on non-target areas by traditional high-power supplementary lights. The high directionality and high brightness of lasers significantly improve the utilization rate of unit light energy, significantly reducing energy consumption while ensuring imaging brightness, making it very suitable for industrial and outdoor applications that require long-term continuous operation.

[0047] 4. Adaptability to complex environments and enhanced stability against environmental interference: Line lasers possess high brightness and strong penetration, providing clear and stable supplementary lighting support for line scanning cameras even in complex environments such as dust and moisture. This characteristic makes laser supplementary lighting systems particularly suitable for industrial inspection and visual monitoring in harsh environments.

[0048] 5. Supports dynamic adjustment to adapt to various scenarios and the linkage of adjustable mechanisms: By combining with the three-axis adjustment components, the line scan camera and line laser can flexibly adjust the emission direction and position to ensure that the optical axis always maintains the optimal positional relationship with the photosensitive area of ​​the line scan camera. This dynamic adjustment capability enables the laser supplementary lighting system to adapt to different installation scenarios, detection angles and object size requirements, greatly improving the applicability and convenience of the equipment.

[0049] 6. The high-precision visual inspection laser illumination system can achieve precise illumination of a single row of pixels in the line scan camera. This high-precision illumination solution can significantly improve the resolution and accuracy of visual inspection, and is particularly suitable for high-speed, high-precision industrial production line inspection, such as surface defect detection and dimensional measurement.

[0050] In this embodiment of the invention, the three-axis adjustment assembly has the following functions:

[0051] 1. Provides robust support to ensure system stability: The mounting bracket of the three-axis adjustment assembly serves as the basic framework of the entire system, responsible for fixing the line scan camera and line laser in the designated position, forming a stable support platform. It can effectively resist external vibration and impact, ensuring long-term stable operation of the equipment in the industrial environment. The entire system can maintain the consistency of the optical axis of the laser and the line scan camera during operation, avoiding optical axis deviation caused by unstable support structure.

[0052] 2. Offers flexible adjustment functions to adapt to various scenarios: The three-axis adjustment component enables the system to be highly flexible, allowing for precise adjustment of the angle and height of the line scan camera and line laser according to different installation environments and usage requirements. Firstly, angle adjustment: Adjusting the emission angle of the laser ensures that the laser line can be accurately aligned with the photosensitive area of ​​the line scan camera and coplanar with its imaging optical axis. Secondly, height adjustment: Adjusting the installation height of the laser according to the specific requirements of the working scenario allows it to adapt to different object sizes or detection distances, further improving the accuracy and applicability of the supplementary lighting effect.

[0053] 3. The three-axis adjustment assembly supports the coordinated operation of the core components. The bottom bracket stably supports the line scan camera and line laser, ensuring that they are always in the correct working position and relative relationship. At the same time, by adjusting the angle and height, the lighting system can work in conjunction with the line scan camera to meet the requirements of high-precision imaging and lighting.

[0054] 4. The fixed bracket, combined with a spring-loaded shockproof design, effectively absorbs and mitigates external vibrations or impacts that may occur during equipment operation, preventing vibrations from affecting the laser and optical axis alignment. The adjustable base's precise adjustment function can also adapt to issues with the supplementary lighting position caused by uneven terrain or equipment installation angle deviations, enabling the system to operate stably in various industrial or outdoor environments.

[0055] 5. Enhanced ease of use and maintenance: The fixed bracket and adjustable base feature a modular design, facilitating quick installation and disassembly of the device and improving its adaptability to different application scenarios. The adjustable function allows for flexible parameter adjustments during subsequent use, reducing maintenance costs caused by light source shifts or environmental changes.

[0056] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0057] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0058] Meanwhile, if the present invention discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, the mutually fixed connection can also be replaced by an integral structure (e.g., manufactured by casting process) (except where it is obviously impossible to use an integral forming process).

[0059] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0060] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A three-axis adjustable line scan camera illumination device, characterized in that, The system includes a line scanner and a line laser located next to the line scanner. A three-axis adjustment assembly is located below both the line scanner and the line laser. The three-axis adjustment assembly includes an adjustment plate, a fixed plate, and a base arranged sequentially from top to bottom. A liftable knob cover is located on the front and rear upper parts of the fixed plate, with the two knob covers positioned diagonally. A semi-circular support point is located above each knob cover, contacting the adjustment plate. An adjustment screw is located below each knob cover, engaging with a threaded hole on the movable plate.

2. The three-axis adjustable line scan camera fill light device according to claim 1, characterized in that, A spring is provided between the adjusting plate and the fixed plate, and the two ends of the spring are respectively connected to the adjusting plate and the fixed plate.

3. A three-axis adjustable line scan camera illumination device according to claim 1, characterized in that, A support assembly is also provided between the adjusting plate and the fixed plate. The support assembly includes an arc-shaped body disposed on the lower surface of the adjusting plate and a cylinder disposed on the upper surface of the fixed plate, wherein the arc-shaped body and the cylinder are in contact.

4. The three-axis adjustable line scan camera fill light device according to claim 1, characterized in that, The adjustment plate has slots at both the front and rear diagonal positions.

5. The three-axis adjustable line scan camera fill light device according to claim 1, characterized in that, The base includes a fixed base and a movable base that can be raised and lowered relative to the fixed base. A fixed body is provided at the rear of the fixed base, and a rotating body is provided at the front of the fixed body. The middle part of the rotating body is hinged to the fixed base. Two rotating arms extend from the rotating body. One of the rotating arms abuts against a lifting column provided at the lower part of the movable base. A lifting adjustment screw is passed through the fixed body, and the other rotating arm abuts against the front end of the lifting adjustment screw.

6. The three-axis adjustable line scan camera fill light device according to claim 5, characterized in that, Both rotating arms are equipped with semi-circular bodies, which are in contact with the lifting adjustment screw and the lifting column, respectively.

7. The three-axis adjustable line scan camera fill light device according to claim 5, characterized in that, The fixed base is provided with a guide rail on its outer side and a guide groove on its inner side, and the guide rail and the guide groove are slidably engaged; a limit groove is provided at the rear of the fixed base and a limit block is provided at the rear of the movable base, and the limit block is limited within the limit groove and can slide along the limit groove.

8. The three-axis adjustable line scan camera fill light device according to claim 5, characterized in that, An adjustment knob is provided at the rear end of the lifting adjustment screw.

9. The three-axis adjustable line scan camera fill light device according to claim 1, characterized in that, A mounting bracket is provided below the line scan camera and line laser.

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