Perforated surface light source

Abstract

The utility model relates to the technical field of machine vision detection, and discloses a perforated area light source which comprises a shell, a highlight lamp panel, a diverging lens, a polarization assembly and a first polaroid. An observation hole is formed in the shell; the highlight lamp panel is arranged in the first shell, and an avoiding hole is formed in the position, corresponding to the observation hole, of the highlight lamp panel. The highlight lamp panel comprises a circuit board and a plurality of highlight lamp beads, and the highlight lamp beads surround the observation hole to form four light-emitting areas; a diverging lens is sequentially arranged in the light emitting direction of each high-brightness lamp bead; each light-emitting area is provided with a polarization assembly; the first polaroid is arranged at the observation hole. According to the utility model, the problem of non-uniform irradiation caused by increasing the divergence angle, namely the problem that the middle part of an image is bright and the two sides of the image are dark, is solved, so that the influence caused by non-uniform irradiation is eliminated, the detection precision and efficiency are improved, and the lithium battery production technology is promoted to be further developed.

Description

Technical Field

[0001] The utility model relates to the technical field of machine vision detection, in particular to an open-hole surface light source. Background Art

[0002] In the subsequent process stages of lithium battery production, the application of open-hole surface light sources becomes particularly critical. This equipment is widely used to achieve large-area and uniform illumination to support a variety of inspection tasks, including but not limited to detailed inspection of bare battery cell binding glue, precise positioning of battery cells in trays, and efficient loading on vibration trays. However, in actual applications, it is noted that the volume design of common open-hole surface light sources on the market often exceeds the actual illumination area by one to two times.

[0003] This design redundancy becomes a significant constraint when facing working conditions that require large-area illumination. Due to its large size, traditional perforated surface light sources are out of place in the limited inspection space and difficult to deploy and operate effectively. This not only affects the inspection efficiency, but may also hinder the smooth operation of the entire production line.

[0004] Therefore, it is necessary to improve the existing technology.

[0005] The above information is presented as background information only to assist with understanding the present disclosure and no determination or admission is made as to whether any of the above may be used as prior art with respect to the present disclosure. Utility Model Content

[0006] The utility model provides a perforated surface light source to solve the problems existing in the prior art.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An open-hole surface light source comprises a housing, a high-brightness light panel, a diverging lens, a polarization component and a first polarizer;

[0009] The shell is provided with an observation hole;

[0010] The high-brightness light panel is arranged in the housing, and a avoidance hole is opened corresponding to the observation hole;

[0011] The high-brightness lamp board comprises a circuit board and a plurality of high-brightness lamp beads, and the plurality of high-brightness lamp beads form four light-emitting areas around the observation hole;

[0012] One of the divergent lenses is sequentially arranged in the light emitting direction of each of the high brightness lamp beads;

[0013] Each of the light-emitting areas is provided with a polarization component;

[0014] The first polarizing plate is arranged at the observation hole.

[0015] Furthermore, in the open-hole surface light source, the polarization angles of the polarization components corresponding to the two light-emitting areas of the first pair of diagonal corners are the same;

[0016] The polarization angles of the polarization components corresponding to the two light-emitting areas of the second pair of diagonal corners are the same;

[0017] The polarization angle of the polarization component corresponding to the two light-emitting areas of the first pair of diagonals is different from the polarization angle of the polarization component corresponding to the two light-emitting areas of the second pair of diagonals.

[0018] Furthermore, in the open-aperture surface light source, the polarization component includes two stacked second polarizers.

[0019] Furthermore, in the open-hole surface light source, the high-brightness lamp beads are SMD lamp beads.

[0020] Furthermore, the open-hole surface light source further includes four power lines;

[0021] One power line controls one corresponding light-emitting area.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model provides an open-hole surface light source, which increases the divergence angle of the high-brightness lamp beads by arranging a divergent lens in the light emitting direction of the high-brightness lamp beads, thereby achieving the effect of small volume but large area illumination, and further solves the problem of uneven illumination caused by increasing the divergence angle, that is, the problem that the middle of the image is bright and the two sides are dark, by arranging a polarization component in each light-emitting area and a first polarizer at the observation hole, thereby eliminating the influence of uneven illumination, improving detection accuracy and efficiency, and being conducive to promoting the further development of lithium battery production technology.

[0024] The present invention has other characteristics and advantages, which will be apparent from the accompanying drawings and subsequent specific embodiments incorporated herein, or will be described in detail in the accompanying drawings and subsequent specific embodiments incorporated herein, which together are used to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural (stereoscopic) schematic diagram of an open-hole surface light source provided by an embodiment of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure (top view) of an open-hole surface light source provided by an embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure (looking up) of an open-hole surface light source provided by an embodiment of the utility model;

[0029] Figure 4 It is a structural (stereoscopic) schematic diagram of a high-brightness light panel and a divergent lens provided in an embodiment of the utility model.

[0030] Reference numerals:

[0031] Shell 1, high brightness light board 2, divergent lens 3, polarization component 4, first polarizer 5, observation hole 6, avoidance hole 7, power cord 8;

[0032] A circuit board 21 and a plurality of high-brightness lamp beads 22. DETAILED DESCRIPTION

[0033] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, 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 the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0034] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0035] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0036] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0037] In the present 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 relationship of quantity, priority or sequence between these entities or operations.

[0038] Without further limitations, in this application, the words "include", "comprises", "has" 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 limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0039] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, 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 way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0040] In the description of the embodiments of the present application, 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 referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0041] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "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 it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] In view of the defects of the above-mentioned prior art, the applicant, based on many years of rich practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theory, actively conducts research and innovation in the hope of creating a technology that can solve the defects of the prior art. After continuous research and design, and after repeated trial samples and improvements, the present utility model with real practical value was finally created.

[0043] Please refer to Figure 1-4 , the embodiment of the utility model provides an open-hole surface light source, including a housing 1, a high-brightness light board 2, a diverging lens 3, a polarization component 4 and a first polarizer 5;

[0044] Firstly, the housing 1 has a precisely opened observation hole 6, which provides a necessary channel for the illumination of the internal light source.

[0045] Next, the high-brightness light board 2 is carefully placed in the internal space of the housing 1. In order to match with the observation hole 6, an avoidance hole 7 is specially opened on the high-brightness light board 2 to ensure that the light source can be radiated through the observation hole 6 smoothly.

[0046] The high-brightness lamp board 2 consists of two parts: a circuit board 21 and a plurality of high-brightness lamp beads 22. These high-brightness lamp beads 22 are arranged in an orderly manner on the circuit board 21 to form four specific light-emitting areas around the observation hole 6. Such a layout is intended to achieve uniform distribution of light sources and improve the illumination effect.

[0047] In order to further enhance the illumination range and uniformity of the light source, a diverging lens 3 is carefully installed in the light emitting direction of each high-brightness lamp bead 22. These diverging lenses 3 can effectively increase the divergence angle of the high-brightness lamp bead 22, thereby achieving a large area illumination effect while ensuring that the light source is small in size.

[0048] However, increasing the divergence angle often leads to uneven illumination, i.e., the image is bright in the middle and dark on both sides. In order to overcome this problem, a polarization component 4 is provided in each light-emitting area. These polarization components 4 can accurately adjust the polarization state of the light source and effectively reduce the uneven illumination phenomenon.

[0049] Finally, in order to further improve the uniformity and clarity of the illumination effect, a first polarizing film 5 is installed at the observation hole 6. The polarizing film 5 can effectively filter out unnecessary light, making the illuminated image clearer and more uniform.

[0050] In summary, the aperture surface light source system provided in this embodiment, through a carefully designed structure and component configuration, not only achieves the effect of small volume but large area illumination, but also effectively solves the problem of uneven illumination and improves detection accuracy and efficiency. This innovative design is of great significance for promoting the further development of lithium battery production technology.

[0051] The perforated surface light source system in this embodiment has demonstrated a high degree of precision and innovation in both structural design and functional realization, especially the arrangement of the polarization component corresponding to the light-emitting area is particularly ingenious.

[0052] Specifically, the four light-emitting areas are cleverly divided into two pairs, each pair of light-emitting areas is located on a diagonal line. Among them, the polarization components 4 corresponding to the two light-emitting areas of the first diagonal pair have the same polarization angle. This means that when the two light-emitting areas work at the same time, the light they emit will have the same polarization direction, thereby enhancing the light intensity and uniformity of the two areas.

[0053] Similarly, the polarization components 4 corresponding to the two light-emitting areas of the second pair of diagonal corners also have the same polarization angle, but different from the polarization angle of the first pair of light-emitting areas. This design is intended to achieve differentiated regulation of light between different areas to cope with different illumination requirements or detection scenarios.

[0054] By carefully setting the polarization angles of the polarization components corresponding to different light-emitting areas, the aperture surface light source system of this embodiment can generate light with a specific polarization direction. This design not only improves the uniformity and clarity of illumination, but also helps to eliminate the adverse effects caused by light scattering or interference, thereby improving the accuracy and efficiency of detection.

[0055] In this embodiment, a more specific design is made for the polarization component of the aperture surface light source system. The specific description is as follows:

[0056] The polarization component 4, as a key component in this embodiment, is very important for improving the illumination effect and detection accuracy of the light source. In this embodiment, the polarization component 4 specifically includes two stacked second polarizers.

[0057] This design of stacking two second polarizers is intended to further enhance the ability to control the polarization direction of the light source through the superposition of dual polarization effects. The angle relationship between the two second polarizers has been carefully calculated and adjusted to ensure that they can work together to produce a more uniform and clear illumination effect.

[0058] By stacking two second polarizers, the polarization component 4 can not only realize the polarization control of light, but also effectively filter out unnecessary light, reduce light scattering and interference, and thus improve the uniformity and clarity of illumination. This is of great significance for improving detection accuracy and efficiency.

[0059] At the same time, due to the stacking design, the manufacture and installation of the polarization component 4 also become more flexible and convenient. The angle relationship between the two second polarizers can be adjusted according to actual needs to adapt to different illumination needs and detection scenarios.

[0060] In this embodiment, for the key component in the perforated surface light source system, namely the high-brightness lamp bead 22, a surface mount lamp bead is selected as the implementation method.

[0061] As a commonly used type of LED lamp beads, SMD lamp beads have the advantages of small size, high brightness, low heat generation, and long service life. These characteristics make it very suitable for use in open-hole surface light source systems, especially in situations where high brightness and uniform illumination are required.

[0062] By designing the high-brightness lamp bead 22 as a SMD lamp bead, not only can the high brightness and uniformity of the light source be achieved, but the overall power consumption and heat dissipation requirements of the system can also be further reduced. At the same time, the flexibility and reliability of the SMD lamp bead also improve the stability and reliability of the entire system.

[0063] In addition, SMD lamp beads also have the advantages of easy installation and maintenance. Due to their small size, they can be easily integrated into the circuit board or other components of the open hole surface light source system, thus simplifying the design and production process of the entire system.

[0064] Please refer again Figure 1 In this embodiment, a more perfect circuit design is performed for the open-hole surface light source system. Specifically, this embodiment adds four power lines 8 to the system, and each power line 8 independently controls a light-emitting area.

[0065] This independently controlled circuit design allows accurate adjustment of the brightness, switch state, etc. of each light-emitting area. By controlling the on / off and voltage of the four power lines 8 respectively, the light intensity of each light-emitting area can be adjusted as needed to achieve a more flexible and accurate illumination effect.

[0066] This design is of great significance for improving detection accuracy and efficiency. For example, in certain detection links of lithium battery production, it may be necessary to have higher or lower light intensity in specific areas in order to more accurately observe or identify product features. By independently controlling the light intensity of each luminous area, we can easily achieve this demand and improve the accuracy and efficiency of detection.

[0067] In addition, the independently controlled circuit design also enhances the stability and reliability of the system. Since each light-emitting zone has an independent power line for control, when one light-emitting zone fails, other light-emitting zones can still work normally without causing serious impact on the entire system. This greatly reduces the risk of the system being completely paralyzed due to a single point failure.

[0068] Although the terms such as housing, high brightness light board, divergent lens, polarization component, etc. are used more frequently 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 utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0069] The utility model provides an open-hole surface light source, which increases the divergence angle of the high-brightness lamp beads by arranging a divergent lens in the light emitting direction of the high-brightness lamp beads, thereby achieving the effect of small volume but large area illumination, and further solves the problem of uneven illumination caused by increasing the divergence angle, that is, the problem that the middle of the image is bright and the two sides are dark, by arranging a polarization component in each light-emitting area and a first polarizer at the observation hole, thereby eliminating the influence of uneven illumination, improving detection accuracy and efficiency, and being conducive to promoting the further development of lithium battery production technology.

[0070] 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 concept 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 perforated surface light source, characterized in that: It comprises a housing (1), a high-brightness light panel (2), a diverging lens (3), a polarization component (4) and a first polarizer (5); The housing (1) is provided with an observation hole (6); The high-brightness light panel (2) is arranged in the housing (1), and an avoidance hole (7) is provided corresponding to the observation hole (6); The high-brightness lamp board (2) comprises a circuit board (21) and a plurality of high-brightness lamp beads (22), wherein the plurality of high-brightness lamp beads (22) form four light-emitting areas around the observation hole (6); One of the diverging lenses (3) is sequentially arranged in the light emitting direction of each of the high-brightness lamp beads (22); Each of the light-emitting areas is provided with a polarization component (4); The first polarizing plate (5) is arranged at the observation hole (6).

2. The open-hole surface light source according to claim 1, characterized in that: The polarization angles of the polarization components (4) corresponding to the two light-emitting areas of the first pair of diagonal corners are the same; The polarization angles of the polarization components (4) corresponding to the two light-emitting areas of the second pair of diagonal corners are the same; The polarization angle of the polarization component (4) corresponding to the two light-emitting areas of the first pair of diagonals is different from the polarization angle of the polarization component (4) corresponding to the two light-emitting areas of the second pair of diagonals.

3. The open-hole surface light source according to claim 2, characterized in that: The polarization component (4) comprises two stacked second polarizers.

4. The open-hole surface light source according to claim 1, characterized in that: The high-brightness lamp bead (22) is a SMD lamp bead.

5. The open-hole surface light source according to claim 1, characterized in that: Also included are four power cords (8); One power line (8) controls one corresponding light-emitting area.

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