Combined light source device

Abstract

The utility model relates to the technical field of light sources, and discloses a combined light source device, which comprises a coaxial light source and a lateral light source which are fixedly connected, the coaxial light source and the lateral light source are sequentially arranged along the shooting direction of a camera, and the position of the coaxial light source relative to the lateral light source is adjustable. The side, facing the coaxial light source, of the lateral light source is provided with a first opening, the emergent face of the coaxial light source corresponds to the first opening, and the side, back to the coaxial light source, of the lateral light source is provided with a second opening which corresponds to the first opening and is communicated with the first opening. The technical problem that in the prior art, a coaxial light source and a lateral light source need to be installed in a split mode, so that rapid installation and rapid adjustment are not convenient is mainly solved.

Description

Technical Field

[0001] This utility model relates to the technical field of light sources, and in particular to a combined light source device. Background Technology

[0002] Currently, coaxial light sources are commonly used in machine vision technology for product appearance defect detection. The light emitted by a coaxial light source is parallel to the optical axis of the camera, providing uniform, shadow-free illumination. However, in some cases, a coaxial light source alone may not meet the detection requirements, necessitating the use of lateral supplementary lighting (where the light emitted is not parallel to the camera's optical axis, also known as non-coaxial lighting) to improve detection performance. Typical scenarios requiring lateral supplementary lighting include: detecting complex geometries (such as curved surfaces and edges), detecting transparent or semi-transparent materials, detecting minute defects, detecting highly reflective materials, and detecting dark or light-absorbing materials. Combining coaxial and lateral supplementary lighting can significantly enhance the detection capabilities of machine vision systems, adapting to more complex detection scenarios. Currently, coaxial and lateral light sources are installed separately in designated locations, which is inconvenient for rapid installation and adjustment. Furthermore, because existing coaxial and lateral light sources are designed separately, gaps exist between them. In other words, when the two light sources are used in combination, the lateral light source often suffers from upward light leakage.

[0003] Therefore, improvements to existing technologies are necessary. Utility Model Content

[0004] This utility model provides a combined light source device, which mainly solves the technical problem that coaxial light sources and side light sources in the prior art are inconvenient to install and adjust quickly because they need to be installed separately.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined light source device includes a coaxial light source and a side light source fixedly connected together. The coaxial light source and the side light source are arranged sequentially along the shooting direction of a camera, and the position of the coaxial light source relative to the side light source is adjustable. The side light source has a first opening on the side facing the coaxial light source, and the emitting surface of the coaxial light source corresponds to the first opening. The side of the side light source facing away from the coaxial light source has a second opening that corresponds to and is connected to the first opening.

[0007] In one of the technical solutions, an adjustment seat is connected between the coaxial light source and the lateral light source, and the adjustment seat is provided with multiple through waist-shaped holes.

[0008] In one of the technical solutions, an adjustment seat is fixed on each of the two opposite sides of the coaxial light source, and the side of the lateral light source facing the coaxial light source is provided with threaded holes corresponding to the plurality of waist-shaped holes.

[0009] In one of the technical solutions, the extension direction of the waist-shaped hole is a first direction, the two adjustment seats are arranged in a second direction perpendicular to the first direction, and a light-blocking plate is fixed on one side of the coaxial light source in the first direction. The coaxial light source and the light-blocking plate together cover at least part of the first opening.

[0010] In one of the technical solutions, the lateral light source includes a fixed base and multiple lamp panels arranged laterally and illuminating downwards at different angles.

[0011] The position of the coaxial light source relative to the mounting base is adjustable. The side of the mounting base facing the coaxial light source has the first opening, and the side of the mounting base away from the coaxial light source has the second opening. Multiple lamp panels are fixed inside the mounting base and positioned between the first opening and the second opening.

[0012] In one of the technical solutions, the emission direction of the coaxial light source is defined as the third direction, and the angle between the illumination direction of the lamp panel and the third direction is smaller the closer the lamp panel is to the coaxial light source.

[0013] In one of the technical solutions, at the same height, the light panels are arranged in pairs within the fixed base with the straight line in the third direction as the axis of symmetry.

[0014] In one of the technical solutions, the plurality of light panels include a first light panel, a second light panel, and a third light panel arranged sequentially along the height direction. The angles between the first light panel, the second light panel, and the third light panel and the third direction decrease progressively. There are two of each of the first light panel, the second light panel, and the third light panel, and the two first light panels, the two second light panels, and the two third light panels are all arranged symmetrically about the straight line of the third direction as an axis of symmetry.

[0015] In one of the technical solutions, the fixing base includes a first side plate, a second side plate, a third side plate, a fourth side plate, and multiple heat dissipation bases;

[0016] The first side plate, the second side plate, the third side plate, and the fourth side plate are connected in sequence and together form an annular structure with the first opening and the second opening. One end of each of the multiple heat sinks is fixedly connected to the inner wall of the first side plate, and the other end of each of the multiple heat sinks is fixedly connected to the inner wall of the third side plate. Each heat sink has a lamp plate fixed on it.

[0017] Compared with the prior art, the combined light source device provided by this utility model has at least the following beneficial effects:

[0018] During installation, the combined light source device in this solution can be fixed in a designated position using either a side light source or a coaxial light source as the mounting reference. Then, the relative positions of the coaxial and side light sources can be adjusted according to actual needs to eliminate assembly errors, ensuring that both the coaxial and side light sources correctly illuminate the product being inspected. This solution facilitates faster installation and adjustment. By combining coaxial and side supplementary lighting, the inspection capabilities of the machine vision system can be significantly improved to adapt to more complex inspection scenarios. Furthermore, by integrating the coaxial and side light sources, the coaxial light source can be used to block the upper opening of the side light source, thus helping to solve the problem of upward light leakage from the side light source. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a combined light source device provided in an embodiment of this application;

[0021] Figure 2 An internal structural diagram of a combined light source device provided in an embodiment of this application;

[0022] Figure 3 This is an exploded view of the structure of a combined light source device provided in an embodiment of this application;

[0023] Figure 4 An exploded view of a combined light source device provided in an embodiment of this application from another angle;

[0024] Figure 5 An optical path diagram of a combined light source device used with a camera, as provided in an embodiment of this application;

[0025] Figure 6 This is an exploded view of the combined light source device provided in an embodiment of this application.

[0026] Figure label:

[0027] 1. Coaxial light source; 2. Side light source; 21. Mounting base; 211. First side plate; 212. Second side plate; 213. Third side plate; 214. Fourth side plate; 215. Heat sink; 22. Lamp board; 221. First lamp board; 222. Second lamp board; 223. Third lamp board; 23. First opening; 24. Second opening; 25. Threaded hole; 3. Adjustment base; 31. Waist-shaped hole; 4. Camera; 5. Product to be tested; 6. Light shield. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] Please refer to the following: Figures 1 to 5 This utility model embodiment provides a combined light source device, which includes a coaxial light source 1 and a side light source 2 fixedly connected. The coaxial light source 1 is understood to emit light parallel to the optical axis of the camera 4 and strike the surface of the product 5 to be inspected. The side light source 2 is understood to emit light that strikes the product 5 laterally, not parallel to the optical axis of the camera 4. Figure 5 As shown, the coaxial light source 1 and the side light source 2 are arranged sequentially along the shooting direction (i.e., the up-down direction) of the camera 4. Furthermore, the position of the coaxial light source 1 relative to the side light source 2 is adjustable. The side light source 2 facing the coaxial light source 1 has a first opening 23, and the emitting surface of the coaxial light source 1 corresponds to the position of the first opening 23. The side of the side light source 2 facing away from the coaxial light source 1 has a second opening 24. The first opening 23 and the second opening 24 correspond to and are interconnected, allowing the light emitted by the coaxial light source 1 to pass sequentially through the first opening 23 and the second opening 24 before illuminating the surface of the product 5 to be inspected. Figure 5 The straight arrow shown is a schematic diagram of the optical path of the combined light source device in this scheme.

[0034] Specifically, during installation, the combined light source device of this solution can be fixed in a designated position using either the side light source 2 or the coaxial light source 1 as the installation reference. Then, the relative positions between the coaxial light source 1 and the side light source 2 are adjusted according to actual needs to eliminate assembly errors between them. This ensures that both the coaxial light source 1 and the side light source 2 can correctly illuminate the product 5 to be inspected. This solution facilitates faster installation and adjustment. By combining coaxial light and side supplementary lighting, the detection capability of the machine vision system can be significantly improved to adapt to more complex inspection scenarios. Furthermore, by integrating the coaxial light source 1 and the side light source 2, the coaxial light source 1 can be used to block the first opening 23 above the side light source 2, thereby helping to solve the problem of upward light leakage from the side light source 2.

[0035] Please refer to the following: Figures 1 to 4 An adjustment seat 3 connects the coaxial light source 1 and the side light source 2. The adjustment seat 3 has multiple through-holes 31. If the extension direction of the through-holes 31 is defined as the first direction X, then the relative position of the coaxial light source 1 and the side light source 2 is adjustable in the first direction X. Preferably, an adjustment seat 3 is fixed to each of the two opposite sides of the coaxial light source 1 along the second direction Y. In this embodiment, the adjustment seat 3 is preferably fixed to the coaxial light source 1. Correspondingly, multiple threaded holes 25 are provided on the side of the side light source 2 facing the coaxial light source 1. Each threaded hole 25 corresponds one-to-one with each through-hole 31. The adjustment seat 3 can be fixed to the side light source 2 by passing a bolt through the through-hole 31 and screwing it into the threaded hole 25. In other embodiments, the adjustment seat 3 can also be designed to be pre-fixed to the side light source 2, while corresponding threaded holes 25 are provided on the coaxial light source 1. This also achieves the function of the coaxial light source 1 being adjustable relative to the side light source 2 in the first direction X.

[0036] Please refer to them again. Figures 1 to 4A light-blocking plate 6 is fixed on one side of the coaxial light source 1 in the first direction X. By setting the light-blocking plate 6, when the position of the coaxial light source 1 is adjusted along the first direction X, the light-blocking plate 6 and the coaxial light source 1 can jointly cover most of the first opening 23 to prevent the side light source 2 from leaking light outward from the first opening 23 over a large area.

[0037] Please refer to the following: Figures 1 to 6 The lateral light source 2 specifically includes a mounting base 21 and multiple lamp panels 22. The mounting base 21 has a first opening 23 on the side facing the coaxial light source 1, and a second opening 24 on the side facing away from the coaxial light source 1. The coaxial light source 1 is actually adjustable relative to the mounting base 21. The multiple lamp panels 22 are arranged laterally within the mounting base 21, such that all lamp panels 22 are positioned between the first opening 23 and the second opening 24. Furthermore, each lamp panel 22 illuminates downwards at a different angle. By setting multiple lamp panels 22 with different downward illumination angles, the side of the product 5 to be inspected can be better illuminated, which is beneficial for meeting complex inspection requirements. In fact, as... Figure 5 As shown, assuming the emission direction of the coaxial light source 1 is the third direction Z, the angle between the illumination direction of the lamp plate 22, which is closer to the coaxial light source 1, and the third direction Z is smaller. Preferably, at the same height, the lamp plates 22 are arranged in pairs within the fixed base 21 with a straight line in the third direction Z as the axis of symmetry. By illuminating the product 5 to be tested from both sides, it is more conducive to meeting complex testing requirements. In a further preferred embodiment, this solution employs three types of light panels 22. Specifically, the multiple light panels 22 include a first light panel 221, a second light panel 222, and a third light panel 223 arranged sequentially along the height direction. The angles between the first light panel 221, the second light panel 222, and the third light panel 223 and the third direction Z decrease progressively. The first light panel 221 can be understood as low-angle side lighting, the second light panel 222 as medium-angle side lighting, and the third light panel 223 as high-angle side lighting. There are two of each of the first light panel 221, the second light panel 222, and the third light panel 223, and the two first light panels 221, the two second light panels 222, and the two third light panels 223 are all symmetrically arranged about a straight line in the third direction Z as an axis of symmetry.

[0038] Please refer to them again. Figures 1 to 6The mounting base 21 in this embodiment specifically includes a first side plate 211, a second side plate 212, a third side plate 213, a fourth side plate 214, and a plurality of heat sinks 215. The first side plate 211, the second side plate 212, the third side plate 213, and the fourth side plate 214 are connected in sequence and together form an annular structure with a first opening 23 and a second opening 24. One end of each of the plurality of heat sinks 215 is fixedly connected to the inner side wall of the first side plate 211, and the other end of each of the plurality of heat sinks 215 is fixedly connected to the inner side wall of the third side plate 213. Each heat sink 215 has a lamp plate 22 as described above fixed on it. This mounting base 21 structure has the advantages of being easy to process and manufacture, easy to form the first opening 23 and the second opening 24, easy to assemble each lamp plate 22, and low cost.

[0039] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A combined light source arrangement, characterized by The coaxial light source and the lateral light source are arranged in sequence along the shooting direction of the camera, and the position of the coaxial light source relative to the lateral light source is adjustable, one side of the lateral light source facing the coaxial light source is provided with a first opening, the exit surface of the coaxial light source corresponds to the first opening, and one side of the lateral light source away from the coaxial light source is provided with a second opening corresponding to and communicating with the first opening.

2. The combined light source apparatus according to claim 1, wherein The coaxial light source and the lateral light source are connected with an adjusting seat, and a plurality of waist-shaped holes are arranged on the adjusting seat.

3. The combined light source apparatus according to claim 2, wherein The coaxial light source is fixed with two adjusting seats on opposite sides, and the side of the lateral light source facing the coaxial light source is provided with a threaded hole corresponding to the plurality of waist-shaped holes.

4. The combined light source apparatus according to claim 3, wherein The extension direction of the waist-shaped hole is a first direction, the two adjusting seats are arranged in a second direction perpendicular to the first direction, and a light barrier is fixed on one side of the coaxial light source in the first direction, and the coaxial light source and the light barrier jointly cover at least part of the first opening.

5. The combined light source apparatus according to claim 1, wherein The lateral light source comprises a fixing seat and a plurality of lamp panels arranged laterally and having different downward illumination angles. The position of the coaxial light source relative to the fixing seat is adjustable, one side of the fixing seat facing the coaxial light source is provided with the first opening, and one side of the fixing seat away from the coaxial light source is provided with the second opening, and the plurality of lamp panels are fixed inside the fixing seat between the first opening and the second opening.

6. The combined light source apparatus according to claim 5, wherein The direction of the coaxial light source is a third direction, and the angle between the illumination direction of the lamp panel closer to the coaxial light source and the third direction is smaller.

7. The combined light source apparatus according to claim 6, wherein At the same height, the lamp panels are arranged in pairs in the fixing seat with a straight line of the third direction as the axis of symmetry.

8. The combined light source apparatus according to claim 7, wherein The plurality of lamp panels comprise a first lamp panel, a second lamp panel and a third lamp panel arranged in sequence along the height direction, the angles between the first lamp panel, the second lamp panel and the third lamp panel and the third direction are smaller and smaller, the first lamp panel, the second lamp panel and the third lamp panel are both two, and the two first lamp panels, the two second lamp panels and the two third lamp panels are symmetrically arranged with a straight line of the third direction as the axis of symmetry.

9. The combined light source apparatus according to claim 8, wherein The fixing seat comprises a first side plate, a second side plate, a third side plate, a fourth side plate and a plurality of heat dissipation seats. The first side plate, the second side plate, the third side plate and the fourth side plate are sequentially connected and jointly surround to form an annular structure with the first opening and the second opening, one end of each of the plurality of heat dissipation seats is fixedly connected with the inner side wall of the first side plate, the other end of each of the plurality of heat dissipation seats is fixedly connected with the inner side wall of the third side plate, and one lamp panel is fixed on each heat dissipation seat.

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