Diffusion plate not prone to collapse and light source
By setting up a support structure and a fixed structure on the diffusion plate, the problem of diffusion plate collapse is solved, the accuracy and reliability of machine vision imaging is improved, and the stability and optical performance of the light source are improved.
Patent Information
- Application Number
- CN202421205549.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In machine vision imaging systems, due to the large size and no shell support, the diffusion plate is prone to collapse due to gravity, resulting in uneven light, affecting imaging accuracy and reliability.
A diffusion plate that is not easy to collapse is designed. By providing a support structure with multiple support members and fixing members on the light surface, the support members are welded to the lamp plate to form a pad, and the fixing members are non-conductive glue or thermosetting plastic pads. The support member is engaged and connected to the fixture member to form a honeycomb or regular hexagonal grid-like arrangement, and the outer surface of the support member is coated with anti-reflective, impermeable, wear-resistant and hydrophobic coatings.
Effectively prevent diffusion plate collapse, improve the accuracy and reliability of machine vision imaging, extend service life, reduce cost and weight, and improve the structural stability and optical performance of the light source.
Smart Images
Figure CN222352184U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical devices, in particular to a diffusion plate and a light source that are not prone to collapse. Background Art
[0002] In machine vision imaging systems, a diffuser is required to achieve uniform illumination of the light emitted by the light panel and reduce reflection. However, in some specific application scenarios, due to the large size of the diffuser and the lack of shell support on the long side, the diffuser will collapse toward the center due to gravity, resulting in uneven light, thus affecting the accuracy and reliability of machine vision imaging.
[0003] Currently, the main method to solve the problem of diffusion plate collapse is to increase the thickness of the diffusion plate or use stronger materials, but this will increase cost and weight, and it will also easily affect the lighting effect. Therefore, a new solution is needed to solve the problem of diffusion plate collapse without adding additional cost and weight, and it is easy to implement in existing equipment.
[0004] 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
[0005] The utility model provides a diffusion plate and a light source that are not easy to collapse, so as to solve the problem in the prior art that the diffusion plate collapses toward the center due to gravity, causing misjudgment of machine vision imaging, because the product is large and the long side of the diffusion plate is not supported by a shell.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A diffusion plate that is not easy to collapse, comprising:
[0008] A diffusion plate body, the diffusion plate body is arranged on a light emitting surface and comprises a first diffusion surface opposite to the light emitting surface;
[0009] A support structure, the support structure is arranged on the light emitting surface, the support structure comprises a plurality of support members, the plurality of support members are arranged at intervals along the long side direction of the diffuser plate body, and two ends of the support members are respectively connected to the light emitting surface and the first diffuser surface;
[0010] A fixing structure is arranged on the first diffusion surface of the diffusion plate body, the fixing structure includes a plurality of fixing members corresponding to the plurality of supporting members one by one, the plurality of fixing members are arranged at intervals along the long side direction of the diffusion plate body, and the supporting members are fixedly connected to the corresponding fixing members.
[0011] Furthermore, the light emitting surface is the light emitting surface of the lamp board, the supporting member is a Pin needle welded to the lamp board, and when the Pin needle is welded to the lamp board, a soldering pad is formed at the welding position, and the soldering pad is insulated.
[0012] Furthermore, the fixing part is a non-conductive adhesive pad, or the fixing part is a thermosetting plastic pad.
[0013] Furthermore, the fixing member is a buckle, the bottom of the supporting member is a hook that matches the buckle, and the supporting member is connected to the fixing member in a snap-fitting manner.
[0014] Furthermore, the outer surface of the support member is a polished surface;
[0015] The support member is a polycarbonate column.
[0016] Furthermore, the outer surface of the support is coated with a surface coating, and the surface coating is one or more of an anti-reflection coating, an anti-reflection coating, a wear-resistant coating and a hydrophobic coating.
[0017] Furthermore, the plurality of support members are randomly distributed on the light emitting surface.
[0018] Furthermore, the plurality of support members are arranged on the light emitting surface to form a grid shape consisting of a plurality of single grids, the single grids are regular hexagons, and the side length of each single grid is formed by the arrangement of at least two support members.
[0019] Furthermore, the plurality of support members are arranged on the light emitting surface in a honeycomb shape including a plurality of honeycomb holes;
[0020] Each honeycomb hole includes seven support members arranged to form a regular hexagon, six of which are located at the vertices of the regular hexagon, and another support member is located at the center point of the hexagon.
[0021] The utility model also provides a light source, comprising the diffusion plate that is not easy to collapse as described in any one of the above items.
[0022] Compared with the prior art, the utility model has the following beneficial effects:
[0023] The utility model provides a diffusion plate and a light source that are not easy to collapse. By arranging a supporting structure, the diffusion plate can be effectively prevented from collapsing toward the center due to gravity, thereby improving the accuracy and reliability of machine vision imaging.
[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 This is a structural diagram of a diffusion plate that is not prone to collapse provided in the first embodiment of the utility model;
[0027] Figure 2 for Figure 1 The cross-sectional view with GG as the section line;
[0028] Figure 3 A light emitting effect diagram of a light source provided in Embodiment 2 of the present invention.
[0029] Figure numerals: 10, lamp board; 101, lamp beads; 11, light emitting surface; 20, diffusion plate body; 21, first diffusion surface; 22, second diffusion surface; 30, support member. DETAILED DESCRIPTION
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] Embodiment 1
[0040] Please refer to Figure 1 The embodiment of the utility model provides a diffusion plate that is not easy to collapse, including:
[0041] The diffuser body 20 is disposed on a light emitting surface 11 and includes a first diffuser surface 21 opposite to the light emitting surface 11;
[0042] A support structure, which is disposed on the light emitting surface 11 and includes a plurality of support members 30, which are arranged at intervals along the long side direction of the diffuser plate body 20, and two ends of the support members 30 are respectively connected to the light emitting surface 11 and the first diffuser surface 21;
[0043] The fixing structure is arranged on the first diffusion surface 21 of the diffusion plate body 20. The fixing structure includes a plurality of fixing members corresponding to the plurality of supporting members 30 one by one. The plurality of fixing members are arranged at intervals along the long side direction of the diffusion plate body 20. The supporting members 30 are fixedly connected to the corresponding fixing members.
[0044] Specifically, in this embodiment, the light emitting surface 11 is the light emitting surface of the lamp board 10, and a plurality of lamp beads 101 are arranged on the light emitting surface of the lamp board 10. The support member 30 is a pin welded to the lamp board 10. When the pin is welded to the lamp board 10, a pad is formed at the welding position, and the pad is insulated. The first diffusion surface 21 of the diffuser plate body 20 is opposite to the light emitting surface of the lamp board 10, and the second diffusion surface 22 of the diffuser plate body 20 is located on a side away from the light emitting surface of the lamp board 10, and the second diffusion surface 22 constitutes the light emitting surface of the lamp board 10 and the diffuser plate body 20.
[0045] In this embodiment, by setting a supporting structure on the light emitting surface 11, setting a fixing structure on the first diffusion surface 21, and fixing the supporting member 30 to the corresponding fixing member, the diffusion plate can be effectively supported and is not prone to collapse due to gravity or other external forces.
[0046] Based on the above structure, this embodiment improves the structural stability of the diffusion plate and prolongs its service life.
[0047] Specifically, in practical applications, the support structure and the fixing structure can be designed into different shapes and sizes to meet different diffusion plate requirements. For example, the support member 30 and the fixing member are both cylindrical, and the diameter of the support member 30 is smaller than the diameter of the fixing member.
[0048] In this embodiment, the pins welded to the lamp board 10 are used as the support members 30, and the pads formed at the welding positions play a role in fixing and supporting the diffuser plate. Since the diameter of the pins is usually very small, compared with other components on the lamp board 10, the blocking and scattering effects of the pins on the light are relatively small. Compared with the effects of the bending of the diffuser plate, the effects of the pins on the light output effect of the lamp board 10 are almost negligible. At the same time, since the pads are insulated, the normal operation of the lamp board 10 will not be affected.
[0049] Based on the above structure, this embodiment not only provides reliable support, but also avoids the problem of electrical conductivity, thereby ensuring the safety and stability of the lamp board 10. In practical applications, when making LED lamps, the non-collapse diffusion plate provided in this embodiment can be used to improve the light output effect and stability of the lamp.
[0050] In an optional embodiment, the fixing member is a non-conductive glue pad, or the fixing member is a thermosetting plastic pad. Both the non-conductive glue pad and the thermosetting plastic pad have good insulation properties, which can ensure electrical isolation between the support member 30 and the diffuser plate, thereby improving the safety and reliability of the diffuser plate. In some occasions with high requirements on electrical performance, such as medical equipment or aerospace fields, the diffuser plate using non-conductive glue pads or thermosetting plastic pads can be used.
[0051] In an optional embodiment, the fixing member is a buckle, and the bottom of the support member 30 is a hook that matches the buckle, and the support member 30 is snap-connected with the fixing member. Through the snap-connection between the buckle and the hook, the support member 30 and the fixing member can be quickly installed and removed, which facilitates the maintenance and replacement of the diffuser plate.
[0052] Based on the above structure, this embodiment improves the installation efficiency and maintainability of the diffusion plate.
[0053] Specifically, in situations where the diffusion plate needs to be replaced frequently, such as in stage lighting equipment, the diffusion plate using the snap-on connection can be used to conveniently and quickly perform replacement and adjustment.
[0054] In this embodiment, in order to further reduce the influence of the support member 30 on the light output effect of the lamp panel 10, the present application also makes the following improvements to the support member 30:
[0055] 1) Improve the position and arrangement of pins.
[0056] It is understandable that when the position and arrangement of the pins are reasonable, the probability of blocking or interfering with the main light output path can be greatly reduced, thereby reducing the impact on the light output effect.
[0057] In an optional implementation, the plurality of support members 30 are randomly distributed on the light emitting surface 11 .
[0058] The randomly distributed support members 30 can reduce the regular scattering of light, allowing the light to pass through the diffuser more evenly. Based on the above structure, this embodiment improves the uniformity of light output from the diffuser. In situations where uniform lighting is required, such as indoor lighting fixtures, the diffuser with randomly distributed support members 30 can be used to improve the uniformity of the lighting effect.
[0059] In an optional embodiment, a plurality of support members 30 are arranged on the light emitting surface 11 to form a grid consisting of a plurality of single grids, each single grid is a regular hexagon, and the side length of each single grid is formed by arranging at least two support members 30 .
[0060] In this embodiment, the single grid of regular hexagons has good symmetry and stability, can provide uniform support force, and reduce the scattering of light, thereby further improving the structural stability and light uniformity of the diffuser. In some occasions where high light uniformity is required, such as studio lighting equipment, this diffuser with a single grid arrangement of regular hexagons can be used.
[0061] In an optional embodiment, a plurality of support members 30 are arranged on the light emitting surface 11 in a honeycomb shape including a plurality of honeycomb holes; each honeycomb hole includes seven support members 30 arranged to form a regular hexagon, wherein six support members 30 are respectively located at the vertices of the regular hexagon, and another support member 30 is located at the center point of the hexagon.
[0062] It is understandable that the honeycomb arrangement can provide better support and uniformity while ensuring the uniformity of light output as much as possible, while reducing the use of materials, reducing costs, and improving the cost performance of the diffuser.
[0063] Specifically, when lighting fixtures are mass-produced, the diffusion plate with honeycomb arrangement can be used to improve production efficiency and reduce costs.
[0064] 2) Improve the outer surface of the pin.
[0065] In an optional embodiment, the outer surface of the support member 30 is a polished surface; the polished surface can reduce the scattering and reflection of light and improve the transmittance of light; the polycarbonate column has good light transmission performance and mechanical strength. Based on the above structure, this embodiment enables the diffuser plate to have better optical performance and structural stability.
[0066] In an optional embodiment, the outer surface of the support member 30 is coated with a surface coating, and the surface coating is one or more of an anti-reflective coating, an anti-reflective coating, a wear-resistant coating and a hydrophobic coating.
[0067] In this embodiment, the anti-reflective coating can reduce the reflection of light, the anti-reflective coating can increase the transmittance of light, the wear-resistant coating can increase the wear resistance of the support 30, and the hydrophobic coating can make the surface of the support 30 waterproof and anti-fouling.
[0068] In practical applications, by first applying a wear-resistant layer and a hydrophobic coating on the surface of the support member 30 and then coating the outer surface with an anti-reflection coating and / or an anti-reflection coating, the optical performance and durability of the diffuser plate are further improved.
[0069] Specifically, for a diffusion plate used in an outdoor environment or a high-humidity environment, the support member 30 coated with a hydrophobic coating can prevent moisture and stains from affecting the diffusion plate.
[0070] In this embodiment, the support member 30 is a polycarbonate column. Polycarbonate is a high molecular polymer with high strength and rigidity, good heat resistance, excellent transparency and electrical insulation performance.
[0071] Embodiment 2
[0072] The embodiment of the utility model provides a light source, comprising the diffusion plate that is not easy to collapse as described in the above embodiment.
[0073] In this embodiment, a diffusion plate that is not easy to collapse is used in the light source, and the diffusion plate includes:
[0074] The diffuser body 20 is disposed on a light emitting surface 11 and includes a first diffuser surface 21 opposite to the light emitting surface 11;
[0075] A support structure, which is disposed on the light emitting surface 11 and includes a plurality of support members 30, wherein the plurality of support members 30 are spaced apart along the long side direction of the diffuser plate body 20;
[0076] The fixing structure is arranged on the first diffusion surface 21 of the diffusion plate body 20. The fixing structure includes a plurality of fixing members corresponding to the plurality of supporting members 30 one by one. The plurality of fixing members are arranged at intervals along the long side direction of the diffusion plate body 20. The supporting members 30 are fixedly connected to the corresponding fixing members.
[0077] Specifically, in this embodiment, the light emitting surface 11 is the light emitting surface of the lamp board 10, and the support member 30 is a pin welded to the lamp board 10. When the pin is welded to the lamp board 10, a pad is formed at the welding position, and the pad is insulated. The first diffusion surface 21 of the diffuser plate body 20 is opposite to the light emitting surface of the lamp board 10, and the second diffusion surface 22 of the diffuser plate body 20 is located on a side away from the light emitting surface of the lamp board 10, and the second diffusion surface 22 constitutes the light emitting surface of the lamp board 10 and the diffuser plate body 20.
[0078] In this embodiment, by providing a support structure on the light emitting surface 11, providing a fixing structure on the first diffusion surface 21, and fixing the support member 30 to the corresponding fixing member, the diffusion plate can be effectively supported and is not prone to collapse due to gravity or other external forces. Figure 3 , which is a rendering obtained by performing an imaging test on a light source using a diffusion plate that is not easy to collapse according to an embodiment. It can be seen from the figure that the imaging effect is not disturbed because the diffusion plate does not collapse.
[0079] The light source in this embodiment has good light emission effect and excellent structural stability, which prolongs its service life and can be widely used in various lighting and display devices, such as flashlights, car headlights, liquid crystal displays, etc.
[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 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 diffuser plate that is not easy to collapse, characterized in that: include: A diffuser plate body (20), the diffuser plate body (20) being arranged on a light emitting surface (11) and comprising a first diffuser surface (21) opposite to the light emitting surface (11); A support structure, the support structure being arranged on the light emitting surface (11), the support structure comprising a plurality of support members (30), the plurality of support members (30) being arranged at intervals along the long side direction of the diffusion plate body (20), and the two ends of the support members (30) being respectively connected to the light emitting surface (11) and the first diffusion surface (21); A fixing structure, wherein the fixing structure is arranged on the first diffusion surface (21) of the diffusion plate body (20), the fixing structure comprises a plurality of fixing members corresponding one by one to the plurality of support members (30), the plurality of fixing members are arranged at intervals along the long side direction of the diffusion plate body (20), and the support members (30) are fixedly connected to the corresponding fixing members.
2. The non-collapse diffuser plate according to claim 1, characterized in that: The light emitting surface (11) is the light emitting surface of the lamp board (10), the support member (30) is a pin welded to the lamp board (10), and when the pin is welded to the lamp board (10), a soldering pad is formed at the welding position, and the soldering pad is insulated.
3. The non-collapse diffuser plate according to claim 2, characterized in that: The fixing part is a non-conductive adhesive pad, or the fixing part is a thermosetting plastic pad.
4. The non-collapse diffuser plate according to claim 1, characterized in that: The fixing member is a buckle, the bottom of the support member (30) is a hook that matches the buckle, and the support member (30) is connected to the fixing member in a snap-fitting manner.
5. The non-collapse diffuser plate according to claim 1, characterized in that: The outer surface of the support member (30) is a polished surface; The support member (30) is a polycarbonate column.
6. The non-collapse diffuser plate according to claim 1, characterized in that: The outer surface of the support member (30) is coated with a surface coating, and the surface coating is one or more of an anti-reflection coating, an anti-reflection coating, a wear-resistant coating and a hydrophobic coating.
7. The non-collapse diffuser plate according to claim 1, characterized in that: The multiple support members (30) are randomly distributed on the light emitting surface (11).
8. The non-collapse diffuser plate according to claim 1, characterized in that: The multiple support members (30) are arranged on the light emitting surface (11) to form a grid shape consisting of multiple single grids, the single grids are regular hexagons, and the side length of each single grid is formed by arranging at least two support members (30).
9. The non-collapse diffuser plate according to claim 1, characterized in that: The plurality of support members (30) are arranged on the light emitting surface (11) in a honeycomb shape including a plurality of honeycomb holes; Each honeycomb hole comprises seven support members (30) arranged to form a regular hexagon, six of which are located at the vertices of the regular hexagon, and another support member (30) is located at the center point of the hexagon.
10. A light source, characterized in that: The invention comprises a diffusion plate which is not easy to collapse as claimed in any one of claims 1 to 9.