Machine vision shadow elimination lighting device
By designing an arc-shaped light source plate and a transmission gear system, the problem of shadows generated on complex surface objects by traditional machine vision lighting equipment has been solved, achieving blind-angle lighting and simplifying angle adjustment, thus improving imaging quality.
Patent Information
- Application Number
- CN202423321653.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Traditional machine vision lighting equipment tends to produce shadows when illuminating complex surface objects, affecting image quality, and angle adjustment is cumbersome.
Design a machine vision shadow-eliminating lighting device that uses an arc-shaped light source plate and a transmission rack system. The angle of the light source can be synchronously adjusted by adjusting the knob and the transmission rack in conjunction with the arc-shaped transmission plate to ensure that the object is illuminated without blind spots. The staggered light source setting avoids shadows.
It achieves blind-spot-free illumination of object surfaces, improves the imaging quality of machine vision systems, and simplifies the process of adjusting the light source angle.
Smart Images
Figure CN223624504U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine vision light source technology, and in particular to a machine vision shadow-eliminating lighting device. Background Technology
[0002] Machine vision lighting is a crucial component of machine vision systems, and its design and selection directly impact image quality, contrast, and subsequent image processing. To achieve optimal lighting, it is typically necessary to select a suitable lighting method based on the object's surface characteristics, geometry, and inspection requirements.
[0003] For objects with complex surface structures, traditional lighting equipment can easily produce shadows, affecting image quality. Using multiple light sources at different angles requires frequent angle adjustments, making the operation extremely cumbersome.
[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a machine vision shadow-eliminating illumination device to solve the above problems.
[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content
[0006] To overcome the shortcomings of the prior art, the present invention discloses a machine vision shadow-removing illumination device to solve the problem of shadows on the surface of objects affecting image quality during the illumination process.
[0007] This utility model discloses a machine vision shadow-eliminating lighting device, including a housing. An arc-shaped light source plate is provided at the front end of the housing. Several light source connecting rods are evenly arranged along the arc surface of the arc-shaped light source plate. A light source is provided on each of the light source connecting rods. The light source connecting rods are rotatably connected to the arc-shaped light source plate along its axial direction. Driven gears are provided on the outer periphery of both ends of the light source connecting rods. A transmission rack is provided above the arc-shaped light source plate. Arc-shaped transmission plates are provided on both the left and right sides of the transmission rack. Transmission racks are provided on the side of each arc-shaped transmission plate closest to the transmission rack. The two transmission racks are respectively meshed with the upper and lower sides of the transmission rack for transmission. The lower tooth surfaces of the two arc-shaped transmission plates are respectively meshed with the driven gears on the left and right sides of the arc-shaped light source plate for transmission. Arc-shaped guide grooves are provided at corresponding positions on the housing and the arc-shaped transmission plates, and the arc-shaped transmission plates are slidably connected within the arc-shaped guide grooves.
[0008] Preferred technical solution: An adjustment knob is connected to the end of the transmission rack on the outside of the housing, which facilitates the adjustment of the illumination angle of the light source on the light source connecting rod.
[0009] Preferred technical solution: The adjustment knob is equipped with a pointer structure, and the housing and the outer periphery of the adjustment knob are equipped with angle marks to improve the adjustment accuracy of the light source illumination angle on the light source connecting rod.
[0010] Preferred technical solution: The light source is a strip light source arranged along the axial direction of the light source connecting rod, which improves the continuity of the illumination range of the light source along the axial direction of the arc-shaped light source plate.
[0011] Preferred technical solution: A heat sink assembly is provided inside the housing, which is positioned above the arc-shaped light source plate to cool the light source and prevent heat accumulation from damaging the equipment.
[0012] Preferred technical solution: A flipping mechanism is connected to the outside of the housing for adjusting the illumination direction of the machine vision anti-shadow illumination device.
[0013] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:
[0014] This utility model discloses a machine vision shadow-eliminating lighting device. Adjustable light sources are evenly arranged on an arc-shaped light source plate. A transmission rack and an arc-shaped transmission plate are used to control the synchronous angle adjustment of the light sources on the left and right sides of the arc-shaped light source plate. This allows the light sources on the left and right sides of the arc-shaped light source plate to focus on the front end of the arc-shaped light source plate, illuminating the object without blind spots. By symmetrically and alternately arranging light sources with different illumination directions, the problem of shadows easily generated on objects by lighting equipment is solved. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of a machine vision shadow-removing illumination device according to the present invention;
[0017] Figure 2 for Figure 1 A magnified view of a portion of point B in the middle;
[0018] Figure 3 This is a schematic diagram of the internal structure of a machine vision shadow-removing illumination device according to the present invention;
[0019] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.
[0020] In the above attached figures, 1 is the housing; 11 is the arc-shaped guide groove; 12 is the angle mark; 2 is the arc-shaped light source plate; 3 is the light source connecting rod; 31 is the driven gear; 4 is the light source; 5 is the transmission rack; 51 is the adjustment knob; 51a is the pointer structure; 6 is the arc-shaped transmission plate; 61 is the transmission rack; and 7 is the flipping mechanism. Detailed Implementation
[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0024] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0025] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] Example:
[0028] like Figure 1 , Figure 3 and Figure 4 As shown, this utility model discloses a device including a housing 1. An arc-shaped light source plate 2 is provided at the front end of the housing 1. Several light source connecting rods 3 are evenly arranged along the arc surface of the arc-shaped light source plate 2. Light sources 4 are provided on the light source connecting rods 3. The light source connecting rods 3 are rotatably connected to the arc-shaped light source plate 2 along its axial direction. Driven gears 31 are provided on the outer periphery of both ends of the light source connecting rods 3. A transmission rack 5 is provided above the arc-shaped light source plate 2. Arc-shaped transmission plates 6 are provided on both the left and right sides of the transmission rack 5. Transmission racks 61 are provided on the side of each arc-shaped transmission plate 6 closest to the transmission rack 5. The two transmission racks 61 are respectively meshed and connected to the upper and lower sides of the transmission rack 5. The lower tooth surfaces of the two arc-shaped transmission plates 6 are respectively meshed and connected to the driven gears 31 on the left and right sides of the arc-shaped light source plate 2. Arc-shaped guide grooves 11 are provided at the corresponding positions of the housing 1 and the arc-shaped transmission plates 6, and the arc-shaped transmission plates 6 are slidably connected within the arc-shaped guide grooves 11.
[0029] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the usage method and principle of this utility model are as follows: In use, the arc-shaped light source plate 2 is set towards the object to be illuminated. Rotating the transmission rack 5 drives the two transmission racks 61 to move relative to each other, which in turn drives the two arc-shaped transmission plates 6 to move relative to each other. During the movement of the two arc-shaped transmission plates 6, the driven gears 31 on the light source connecting rods 3 on the left and right sides of the arc-shaped light source plate 2 rotate in opposite directions, thereby causing the light sources 4 on the light source connecting rods 3 on the left and right sides of the arc-shaped light source plate 2 to focus or diverge towards the front end of the arc surface. By adjusting the opposing angle of several light sources 4 on the left and right sides, the object to be illuminated is illuminated without blind spots. The staggered arrangement of light rays avoids the generation of shadows and improves the imaging quality of the machine vision system.
[0030] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in order to facilitate the adjustment of the illumination angle of the light source, the end of the transmission rack 5 is connected to an adjustment knob 51 on the outside of the housing 1, and the angle can be quickly adjusted by rotating the adjustment knob 51.
[0031] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in order to improve the accuracy of angle adjustment, the adjustment knob 51 is provided with a pointer structure 51a, and the housing 1 and the corresponding position of the outer periphery of the adjustment knob 51 are provided with an angle mark 12. By comparing the pointer structure 51a with the angle mark 12, the illumination angle of the light source can be controlled with high precision.
[0032] refer to Figure 1 , Figure 3 and Figure 4 As shown, in order to improve the quality of illumination, the light source 4 is a strip light source arranged along the axis of the light source connecting rod 3, thereby improving the continuity of the illumination beam.
[0033] refer to Figure 1 , Figure 3 and Figure 4 As shown, in order to ensure the stable operation of the equipment, a heat sink assembly is provided inside the housing 1. The heat sink assembly is located above the arc-shaped light source plate 2 to handle the heat inside the equipment in a timely manner and avoid damage to the equipment.
[0034] refer to Figure 1 , Figure 3 and Figure 4 As shown, a flipping mechanism 7 is connected to the outside of the housing 1 to facilitate the adjustment of the equipment's irradiation angle.
[0035] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A machine vision shadow-removing illumination device, comprising a housing (1), characterized in that: The front end of the housing (1) is provided with an arc-shaped light source plate (2). Several light source connecting rods (3) are evenly arranged along the arc surface of the arc-shaped light source plate (2). A light source (4) is provided on the light source connecting rod (3). The light source connecting rod (3) is rotatably connected to the arc-shaped light source plate (2) along its axial direction. Driven gears (31) are provided on the outer periphery of both ends of the light source connecting rod (3). A transmission rack (5) is provided above the arc-shaped light source plate (2). Arc-shaped transmission plates (6) are provided on both the left and right sides of the transmission rack (5). The two arc-shaped transmission plates (6) are provided with transmission racks (61) on the side close to the transmission rack (5). The two transmission racks (61) are respectively meshed with the upper and lower sides of the transmission rack (5). The lower tooth surfaces of the two arc-shaped transmission plates (6) are respectively meshed with the driven gears (31) on the left and right sides of the arc-shaped light source plate (2). The housing (1) is provided with arc-shaped guide grooves (11) at the corresponding positions of the arc-shaped transmission plates (6). The arc-shaped transmission plates (6) are slidably connected in the arc-shaped guide grooves (11).
2. The machine vision shadow-removing illumination device according to claim 1, characterized in that: An adjustment knob (51) is connected to the end of the transmission rack (5) on the outside of the housing (1).
3. The machine vision shadow-removing illumination device according to claim 2, characterized in that: The adjustment knob (51) is provided with a pointer structure (51a), and the housing (1) is provided with an angle mark (12) at the position corresponding to the outer periphery of the adjustment knob (51).
4. The machine vision shadow-removing illumination device according to claim 1, characterized in that: The light source (4) is a strip light source arranged along the axial direction of the light source connecting rod (3).
5. The machine vision shadow-removing illumination device according to claim 1, characterized in that: The housing (1) is provided with a heat sink assembly, which is located above the arc-shaped light source plate (2).
6. The machine vision shadow-removing illumination device according to claim 1, characterized in that: A flipping mechanism (7) is connected to the outside of the housing (1).