Shadowless light source device

Abstract

The utility model relates to the technical field of machine vision detection, and discloses a shadowless light source device which comprises an annular shadowless light source assembly. The annular light supplementing assembly is arranged on the annular shadowless light source assembly and located on one side of the light emitting direction of the annular shadowless light source assembly. According to the shadowless light source device provided by the utility model, the annular light supplementing assembly is arranged on one side of the light emitting direction of the annular shadowless light source assembly, so that the annular light supplementing assembly can supplement the peripheral area of the irradiation device, obvious dark areas are avoided, the uniformity of light source irradiation is improved, and the accuracy of machine vision detection is improved.

Description

Technical Field

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

[0002] In the current technological landscape, existing shadowless light source devices face significant performance limitations when operating within a larger field of view. Specifically, as the field of view expands, noticeable dark areas appear around the device, leading to uneven illumination and, in turn, compromising the accuracy of machine vision inspections.

[0003] To meet this challenge, there is an urgent need to deeply improve and optimize existing technologies. Such improvements will not only help solve the current problems, but also further enhance the performance and applicability of shadowless light source devices, thereby meeting the needs of more extensive and complex applications.

[0004] The above information is presented as background information only to assist with an understanding of the present disclosure and is not a determination or admission that any of the above may be applicable as prior art with respect to the present disclosure. Utility Model Content

[0005] The utility model provides a shadowless light source device to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A shadowless light source device, comprising:

[0008] Ring-shaped shadowless light source assembly;

[0009] An annular fill light component is arranged on the annular shadowless light source component and is located on one side of the light emitting direction of the annular shadowless light source component.

[0010] Furthermore, in the shadowless light source device, the annular fill light component includes a plurality of fill light beads;

[0011] A plurality of the fill light beads form two groups of annular fill light groups.

[0012] Furthermore, in the shadowless light source device, the fill light beads in the two groups of the annular fill light groups are arranged in an interlaced manner.

[0013] Furthermore, in the shadowless light source device, the plurality of fill light beads are all arranged to be inclined toward the optical axis of the annular shadowless light source assembly.

[0014] Furthermore, in the shadowless light source device, the annular shadowless light source assembly includes an annular housing, an annular light panel and a diffusion cover;

[0015] The annular housing is provided with a light outlet;

[0016] The diffusion cover is arranged inside the annular housing, and the reflective surface of the diffusion cover faces the light outlet;

[0017] The annular light panel is arranged inside the annular shell, and the light emitting surface of the annular light panel faces the diffusion cover.

[0018] Furthermore, in the shadowless light source device, the diffusion cover is coated with a reflective coating.

[0019] Furthermore, in the shadowless light source device, the annular housing includes an annular outer shell circumference and an annular pressure ring;

[0020] The annular housing circumference and the annular pressure ring are assembled to form an annular sealing cavity.

[0021] Furthermore, in the shadowless light source device, a heat-conducting material is provided between the annular light plate and the annular pressure ring.

[0022] Furthermore, in the shadowless light source device, a control line of the annular fill light assembly passes through the annular housing and is connected to the annular light board.

[0023] Furthermore, in the shadowless light source device, the annular shell is also provided with an observation port.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The utility model provides a shadowless light source device, which arranges an annular fill light component on one side of the light emitting direction of the annular shadowless light source component. The annular fill light component can supplement the surrounding area of ​​the illumination device, avoid the occurrence of obvious dark areas, improve the uniformity of the light source illumination, and thus improve the accuracy of machine vision detection.

[0026] The present invention has other features and advantages, which will be apparent from the accompanying drawings and subsequent detailed descriptions incorporated herein, or will be described in detail in the accompanying drawings and subsequent detailed descriptions incorporated herein, which together serve to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a structural (stereoscopic) schematic diagram of a shadowless light source device provided by an embodiment of the present utility model;

[0029] Figure 2 This is a structural (exploded) schematic diagram of a shadowless light source device provided by an embodiment of the present utility model;

[0030] Figure 3 This is a schematic diagram of the structure (side view) of a shadowless light source device provided by an embodiment of the present utility model;

[0031] Figure 4 It is a structural (cross-sectional) schematic diagram of a shadowless light source device provided by an embodiment of the present utility model.

[0032] Reference numerals:

[0033] Annular shadowless light source component 1, annular fill light component 2;

[0034] Annular housing 11, annular light panel 12, diffusion cover 13, observation port 14;

[0035] Fill light beads 21;

[0036] An annular shell circumference 111 and an annular pressure ring 112. DETAILED DESCRIPTION

[0037] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0038] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0039] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0040] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0041] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0042] Without further limitations, in this application, the words "include", "comprise", "have" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0043] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0044] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0045] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0046] In view of the aforementioned deficiencies in the prior art, the applicant, drawing upon years of extensive practical experience and expertise in the design and manufacture of similar products, combined with the application of academic theory, has actively engaged in research and innovation, hoping to create a technology that can address these deficiencies. Through continuous research and design, and through repeated trial production and refinement, the applicant has finally created the present utility model, which possesses truly practical value.

[0047] Please refer to Figure 1-4 The present invention provides a shadowless light source device with excellent illumination performance and higher applicability. Specifically, the device mainly includes the following two core components:

[0048] First, an annular shadowless light source assembly 1 is introduced. As the main body of the light source device, the assembly is responsible for generating high-quality shadowless light.

[0049] Secondly, the device also features a specially designed annular fill light assembly 2, cleverly positioned to one side of the light-emitting direction of the annular shadowless light source assembly 1. This design aims to provide supplemental illumination to the surrounding area of ​​the device, effectively preventing noticeable dark areas within the illumination range. This supplemental illumination strategy significantly improves the uniformity of the light source, resulting in a more balanced light distribution across the entire illumination area.

[0050] It's worth noting that the annular fill light assembly 2 in this embodiment not only optimizes the illumination effect of the light source, but also has a significant positive effect on improving the accuracy of machine vision inspection. In machine vision systems, the uniformity and stability of the light source are key factors affecting inspection results. By introducing the annular fill light assembly 2, this device successfully improves the uniformity of the light source, thereby ensuring that the machine vision system can obtain more accurate and reliable image information during inspection.

[0051] In summary, the shadowless light source device provided by the present invention effectively improves the illumination effect of the light source and the accuracy of machine vision detection by introducing the annular fill light component 2, providing strong technical support for applications in related fields.

[0052] Please refer again Figure 1 In this embodiment, the shadowless light source device is described in detail. The annular fill light component 2 in this embodiment is carefully designed to ensure that it can effectively supplement the light source and improve the uniformity of illumination.

[0053] Specifically, the annular fill light assembly 2 is composed of several carefully selected fill light beads 21. These fill light beads 21 are cleverly arranged into two groups of annular fill light groups, each group of which is arranged in a ring shape, thereby ensuring a uniform fill light effect on one side of the light output direction of the annular shadowless light source assembly 1.

[0054] This design enables the ring fill light assembly 2 to provide uniform and sufficient supplemental light around the shadowless light source device, effectively avoiding the appearance of dark areas. By working in conjunction with the two ring fill light groups, the illumination uniformity of the entire device is significantly improved, providing a more accurate and reliable lighting environment for applications such as machine vision inspection.

[0055] Please refer again Figure 1 In this embodiment, the fill light beads 21 in the two annular fill light groups adopt a unique arrangement. Specifically, the fill light beads 21 in the two annular fill light groups are arranged in a staggered manner.

[0056] This staggered arrangement offers multiple advantages. First, it further enhances the uniformity of the fill light assembly, ensuring more uniform and sufficient fill light is provided around the annular shadowless light source assembly 1. The staggered arrangement of the fill light beads 21 provides a more even distribution of light, effectively avoiding the formation of dark areas.

[0057] Secondly, the staggered arrangement also improves the flexibility and adaptability of the fill light components. Under different lighting requirements, this arrangement can better adjust the distribution and intensity of light to meet the needs of different application scenarios.

[0058] Please refer again Figure 4 In this embodiment, the plurality of fill light beads 21 are all arranged to be tilted toward the optical axis of the annular shadowless light source assembly 1 .

[0059] It should be noted that this tilted design is intended to achieve more accurate and efficient light supplementation. By tilting the fill light beads 21 toward the optical axis, light can be more concentratedly illuminated to the surrounding area of ​​the annular shadowless light source assembly 1, further reducing the appearance of dark areas and improving the uniformity of the entire illuminated area.

[0060] This design not only optimizes the fill light effect, but also enhances the flexibility and adaptability of the device. The tilted fill light beads 21 can adjust the angle and intensity of the light according to actual needs to better adapt to different application scenarios.

[0061] Please refer again Figure 2 and Figure 4 In this embodiment, the annular shadowless light source assembly 1 is mainly composed of three parts: an annular shell 11, an annular light panel 12 and a diffusion cover 13.

[0062] First, the annular housing 11 serves as the basic structure of the entire assembly, and its internal space is used to accommodate the annular light panel 12 and the diffuser 13. The annular housing 11 is specially designed with a light outlet, which is the key channel for the light source to output and ensure that the light can be smoothly irradiated to the target area.

[0063] Next, the diffuser 13 is carefully placed inside the annular housing 11. With its reflective surface facing the light outlet, this design helps evenly diffuse the light emitted by the annular light panel 12, preventing over-concentration or noticeable dark areas. The diffuser 13 not only improves the uniformity of the light source but also softens the light and reduces glare.

[0064] Finally, the ring light panel 12 is placed inside the ring housing 11, with its light-emitting surface facing the diffuser 13. Light-emitting elements (such as LEDs) are mounted on the ring light panel 12. The light emitted by these elements is reflected and diffused by the diffuser 13 before being output from the light outlet, creating a uniform and shadow-free lighting effect.

[0065] In summary, the annular shadowless light source assembly 1 achieves uniform and shadowless lighting through the coordinated operation of the annular housing 11, the annular light panel 12, and the diffuser 13. This design not only improves the accuracy of machine vision inspection, but is also widely used in various applications requiring uniform lighting.

[0066] Please refer again Figure 2 and Figure 4 In this embodiment, the structure of the annular shell 11 of the annular shadowless light source assembly 1 in this embodiment is further refined.

[0067] The annular housing 11 is assembled from two main parts: an annular outer shell circumference 111 and an annular pressure ring 112, which together form an annular sealing cavity. This structural design not only ensures the stability and durability of the assembly, but also provides good sealing performance.

[0068] The annular housing 111 serves as the foundation for the entire annular housing 11. Its shape and dimensions ensure the stable placement of the annular light panel 12 and diffuser 13. The annular pressure ring 112, assembled with the annular housing 111, forms a complete annular sealed cavity. This sealed cavity effectively prevents the ingress of external impurities such as dust and moisture, ensuring the stability and reliability of the light source assembly.

[0069] In addition, the assembly method of the annular pressure ring 112 also makes the entire annular housing 11 easy to disassemble and install, which is convenient for subsequent maintenance and replacement. This design feature further improves the practicality and convenience of the annular shadowless light source assembly 1.

[0070] In this embodiment, the design of the annular shadowless light source assembly 1 is further optimized. Specifically, a heat-conducting material is provided between the annular light plate 12 and the annular pressure ring 112 .

[0071] The primary purpose of this design is to improve the heat dissipation performance of the light source assembly. Since the light-emitting elements (such as LEDs) on the annular light board 12 generate a certain amount of heat during operation, failure to dissipate this heat promptly and effectively could lead to performance degradation or even damage to the light source assembly. Therefore, by placing a thermally conductive material between the annular light board 12 and the annular pressure ring 112, the heat transfer efficiency can be greatly improved, ensuring stable operation of the light source assembly.

[0072] The selection of thermal conductive materials needs to take into account factors such as thermal conductivity, high temperature resistance, and chemical stability. In actual applications, appropriate thermal conductive materials such as thermal conductive silicone and thermal conductive grease can be selected according to specific needs and conditions.

[0073] A significant design highlight of this embodiment is that the control line of the annular fill light assembly 2 cleverly passes through the annular housing 11 and is directly connected to the annular light board 12. This connection method not only optimizes the circuit layout and improves the integration of the entire device, but more importantly, it allows the annular shadowless light source assembly 1 and the annular fill light assembly 2 to be controlled simultaneously.

[0074] Specifically, when the brightness, color temperature, or other parameters of the light source need to be adjusted, the corresponding instructions are simply sent to the ring light board 12 via the control line, and the ring light board 12 can adjust its own lighting state according to the instructions. At the same time, because the control line of the ring fill light component 2 is connected to the ring light board 12, the ring fill light component 2 can also synchronously receive these instructions and adjust its fill light state accordingly.

[0075] This simultaneous control design offers numerous benefits. First, it simplifies the operation process, eliminating the need to control two components separately, improving ease of use. Second, it ensures consistent illumination from both the ring-shaped shadowless light source component 1 and the ring-shaped fill light component 2, resulting in a more uniform and stable lighting effect across the entire device. Finally, this design reduces the risk of failure, as both components share a single control line, reducing the possibility of line failure.

[0076] Please refer again Figure 2 In this embodiment, the annular shell 11 is further provided with an observation port 14 .

[0077] It should be noted that the design of the observation port 14 facilitates its use with machine vision systems or other imaging devices. When the annular shadowless light source assembly 1 and the annular fill light assembly 2 operate simultaneously, they jointly provide a uniform, shadow-free lighting environment, while the observation port 14 allows a camera or other imaging device to capture a clear image of the target object. This design gives the entire device broad application prospects in fields such as machine vision inspection and image processing.

[0078] Although the terms housing, lamp panel, etc. are frequently used in this application, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

[0079] The utility model provides a shadowless light source device, which arranges an annular fill light component on one side of the light emitting direction of the annular shadowless light source component. The annular fill light component can supplement the surrounding area of ​​the illumination device, avoid the occurrence of obvious dark areas, improve the uniformity of the light source illumination, and thus improve the accuracy of machine vision detection.

[0080] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A shadowless light source device, characterized in that: include: Annular shadowless light source assembly (1); An annular fill light component (2), the annular fill light component (2) being arranged on the annular shadowless light source component (1) and being located on one side of the light emitting direction of the annular shadowless light source component (1); The annular fill light component (2) comprises a plurality of fill light beads (21); A plurality of the fill light beads (21) form two groups of annular fill light groups.

2. The shadowless light source device according to claim 1, characterized in that: The fill light beads (21) in the two groups of annular fill light groups are arranged in a staggered manner.

3. The shadowless light source device according to claim 1, characterized in that: The plurality of fill light beads (21) are all arranged obliquely toward the optical axis of the annular shadowless light source assembly (1).

4. The shadowless light source device according to claim 1, characterized in that: The annular shadowless light source assembly (1) comprises an annular housing (11), an annular light panel (12) and a diffusion cover (13); The annular housing (11) is provided with a light outlet; The diffusion cover (13) is arranged inside the annular housing (11), and the reflection surface of the diffusion cover (13) faces the light outlet; The annular light panel (12) is arranged inside the annular housing (11), and the light-emitting surface of the annular light panel (12) faces the diffusion cover (13).

5. The shadowless light source device according to claim 4, characterized in that: The diffusion cover (13) is coated with a reflective coating.

6. The shadowless light source device according to claim 4, characterized in that: The annular housing (11) comprises an annular outer shell circumference (111) and an annular pressure ring (112); The annular housing circumference (111) and the annular pressure ring (112) are assembled to form an annular sealing cavity.

7. The shadowless light source device according to claim 6, characterized in that: A heat-conducting material is provided between the annular lamp plate (12) and the annular pressure ring (112).

8. The shadowless light source device according to claim 4, characterized in that: The control line of the annular fill light assembly (2) passes through the annular housing (11) and is connected to the annular light panel (12).

9. The shadowless light source device according to claim 4, characterized in that: The annular housing (11) is also provided with an observation port (14).

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