Light guide post light mixing structure

Abstract

The utility model is suitable for light guide column technical field provides mixed light structure light guide column, include: multicolor LED, install first light guide column above multicolor LED, install frosted atomizing piece above first light guide column, and install second light guide column above frosted atomizing piece. The light guide column mixed light structure provided by the scheme utilizes the trapezoidal and octagonal combination structure of first light guide column and second light guide column, cooperates the frosted atomizing piece in the middle, constructs a multistage scattering and mixed light light path structure, effectively solves the problem that traditional single light guide column structure mixes light unevenly and is prone to color spot, realizes the high uniformity and softness of the color of light emitting surface.

Description

Technical Field

[0001] This utility model relates to the field of light guide column technology, specifically to a light guide column light mixing structure. Background Technology

[0002] The core of the light-mixing function of a light guide column lies in transforming an imperfect point light source into an ideal surface light source. Existing light guide column mixing structures mostly use a single light guide column directly connected to a multi-color LED to achieve light transmission. This structure is simple, but it has obvious shortcomings in practical applications: First, a single-stage light guide column has limited ability to mix different wavelengths of light emitted by multi-color LEDs. The light is emitted directly without sufficient scattering and mixing within the light guide column, which easily forms obvious color spots, color blocks, or color layering on the light-emitting surface, resulting in uneven light output, affecting visual effects and product quality. Second, there are usually physical gaps between traditional light guide columns and light sources or other optical components. These air interfaces cause a large amount of Fresnel reflection loss, reducing light energy utilization. In addition, the simple combination method also makes the connection between components not tight enough, which can easily cause displacement or separation when subjected to vibration or temperature changes, affecting the stability of the optical path, and thus leading to a decrease in optical performance and a shortened product life. In view of these problems, this case was developed through in-depth research. Utility Model Content

[0003] This utility model provides a light guide column mixing structure, which aims to solve the problems of the current light guide column mixing structure not having uniform light mixing and structural stability.

[0004] This utility model is implemented as follows: a light guide column mixing structure includes: a multi-color LED; a first light guide column installed above the multi-color LED, a frosted atomizing sheet installed above the first light guide column, and a second light guide column installed above the frosted atomizing sheet.

[0005] Preferably, both ends of the first light guide post and the second light guide post are octagonal.

[0006] Preferably, both the first light guide post and the second light guide post are made of high-purity PMMA.

[0007] Preferably, the front view of both the second light guide post and the first light guide post is set as a trapezoid that is wider at the top and narrower at the bottom.

[0008] Preferably, the top view of both the multi-color LED and the frosted atomizing sheet is circular.

[0009] Preferably, the first light guide post, the second light guide post, and the frosted atomizing sheet between them are all bonded together as a whole by optical adhesive.

[0010] Preferably, the frosted atomizing sheet is configured as a thin sheet, and the thickness of the frosted atomizing sheet is 0.5 mm.

[0011] Compared with related technologies, the light guide column mixing structure provided by this utility model has the following beneficial effects: By utilizing the trapezoidal and octagonal combination structure of the first and second light guide pillars, along with the frosted atomizing sheet in the middle, a multi-level scattering and mixing optical path structure is constructed. This effectively solves the problems of uneven light mixing and color spots in traditional single light guide pillar structures, achieving highly uniform and soft colors on the light-emitting surface.

[0012] 2. Optical adhesive is used to bond the first light guide post, the frosted atomizing sheet, and the second light guide post into a seamless integral structure, which significantly reduces Fresnel reflection loss at the medium interface, improves light energy utilization efficiency, enhances the structural stability and sealing of the component, and extends its service life. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the first and second light guide pillars of this utility model; Figure 2 This is a three-dimensional structural diagram of the first and second light guide pillars of this utility model; Figure 3 This is a top view schematic diagram of the multicolor LED structure of this utility model; Figure 4 This is a top view of the structure of the first light guide column of this utility model.

[0014] In the diagram: 1. Multi-color LED; 2. First light guide column; 3. Frosted atomizing sheet; 4. Second light guide column. Detailed Implementation

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example

[0017] A preferred embodiment of the light guide pillar light mixing structure provided by this utility model is, for example... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: The light guide column mixing structure includes: a multi-color LED1; a first light guide column 2 installed above the multi-color LED1, a frosted atomizing sheet 3 installed above the first light guide column 2, and a second light guide column 4 installed above the frosted atomizing sheet 3.

[0018] It should be noted that the existing light guide column mixing structure technology has the following drawbacks: First, the ability of a single-stage light guide column to mix different wavelengths of light emitted by multi-color LED1 is limited. The light is emitted directly without sufficient scattering and mixing within the light guide column, which easily forms obvious color spots, color blocks, or color layering on the light-emitting surface, resulting in uneven light output, affecting visual effects and product quality. Second, there is usually a physical gap between the traditional light guide column and the light source or other optical components. These air interfaces cause a large amount of Fresnel reflection loss, reducing light energy utilization. In addition, the simple combination method also makes the connection between components not tight enough, which can easily cause displacement or separation when subjected to vibration or temperature changes, affecting the stability of the optical path, and thus leading to a decrease in optical performance and a shortened product life.

[0019] In this embodiment, the multi-color LED 1 emits mixed-color light as a light source. The light first enters the first light guide 2. Through its trapezoidal structure and octagonal end face optical design, the light undergoes multiple total internal reflections and refractions inside the first light guide 2 to achieve initial diffusion and mixing. Subsequently, the light reaches the frosted atomizing sheet 3. This sheet strongly scatters and diffuses the light, completely breaking up the different colored light spots, achieving full color mixing and eliminating color difference. After homogenization, the light continues to enter the second light guide 4. The second light guide 4, through its own trapezoidal and octagonal structure, performs final light guiding and shape regularization on the mixed light, directing the light to the predetermined light-emitting surface. In the entire optical path, the first light guide 2, the frosted atomizing sheet 3, and the second light guide 4 are bonded together as a whole with optical adhesive, eliminating air gaps, minimizing light loss caused by interface reflection, and ensuring light efficiency. Finally, through this series of synergistic effects, the light emitted from the light-emitting surface of the second light guide 4 is uniform, soft, and free of color spots—a high-quality mixed light.

[0020] In a further preferred embodiment of this utility model, both ends of the first light guide post 2 and the second light guide post 4 are octagonal.

[0021] In this embodiment, by designing the two ends of the first light guide post 2 and the second light guide post 4 as octagonal structures, multiple reflective surfaces can be used to allow light to undergo more total internal reflection and scattering inside the first light guide post 2 and the second light guide post 4, thereby promoting the full mixing of different colored light, effectively improving the color uniformity of the light-emitting surface, and reducing color spot phenomenon. Compared with the traditional circular or quadrilateral structure, the octagonal end structure can provide better torsional stability during fixing and assembly. In addition, the octagonal end face design increases the light emission and refraction interface, which helps to break the directional propagation of light. This allows the light emitted from the multi-color LED 1 to undergo a more complex light path when passing through the first light guide post 2, the second light guide post 4 and the frosted atomizing sheet 3, ultimately achieving a soft and uniform light mixing effect. Furthermore, the unique geometric shape also enhances the product's appearance recognition.

[0022] In a further preferred embodiment of this utility model, the first light guide post 2 and the second light guide post 4 are both made of high-purity PMMA.

[0023] In this embodiment, high-purity PMMA (polymethyl methacrylate) has excellent optical transparency and high light transmittance, which can ensure that the light loss is minimized when it is transmitted inside the first light guide post 2 and the second light guide post 4. Its uniform refractive properties are conducive to the efficient total internal reflection transmission of light inside the first light guide post 2 and the second light guide post 4. At the same time, its stable physicochemical properties ensure that the first light guide post 2 and the second light guide post 4 are not prone to yellowing or aging during long-term use, thereby maintaining a lasting light mixing effect and light output quality.

[0024] In a further preferred embodiment of this utility model, the front view of both the second light guide post 4 and the first light guide post 2 is set as a trapezoid that is wider at the top and narrower at the bottom.

[0025] In this embodiment, the front view of both the second light guide post 4 and the first light guide post 2 is set as a trapezoidal structure that is wider at the top and narrower at the bottom. This shape conforms to the natural propagation path of light spreading from a small area of ​​light source at the bottom to a large area of ​​light-emitting surface at the top. The side wall angle of the trapezoid is designed to guide the light to undergo effective total internal reflection inside and gradually expand outward, thereby achieving uniform illumination from a point light source to a surface light source, effectively increasing the light-emitting area and avoiding a bright spot in the center, making the final light emission effect softer and more uniform. Example

[0026] Based on Embodiment 1, a preferred embodiment of the light guide pillar mixing structure provided by this utility model is, for example... Figure 1 and Figure 2 As shown: The top view of both the multi-color LED 1 and the frosted atomizing sheet 3 is circular.

[0027] In this embodiment, the top view of both the multi-color LED 1 and the frosted atomizing sheet 3 is set to be circular. This symmetrical structure can ensure that the propagation path and intensity distribution of light in each radial direction remain consistent after the light is emitted from the light source. The circular frosted atomizing sheet 3 can better match the circular light spot, achieve uniform scattering of the emitted light, and avoid uneven brightness or color caused by shape mismatch, thereby forming a softer and more uniform light mixing effect on the entire light-emitting surface.

[0028] In a further preferred embodiment of this utility model, the first light guide post 2, the second light guide post 4, and the frosted atomizing sheet 3 between them are all bonded together as a whole by optical adhesive.

[0029] In this embodiment, the first light guide post 2, the frosted atomizing sheet 3, and the second light guide post 4 are bonded together into an integrated structure using optical adhesive. This can minimize the air gaps between components, effectively avoiding Fresnel reflection loss caused by refractive index mismatch at the medium interface, and significantly improving the transmission efficiency of light energy. At the same time, the integrated structure enhances the mechanical stability and sealing of the components, prevents internal dust ingress or displacement, and ensures the reliability and consistency of the optical system during long-term operation.

[0030] In a further preferred embodiment of the present invention, the frosted atomizing sheet 3 is configured as a thin sheet, and the thickness of the frosted atomizing sheet 3 is 0.5mm.

[0031] In this embodiment, the thickness of the frosted atomizing sheet 3 is set to 0.5mm, which is the best balance between optical performance and structural strength. This thickness is sufficient to generate sufficient scattering and diffuse reflection of the light passing through it through its internal micro-frosted structure, effectively breaking up beams of different colors and promoting uniform color mixing. At the same time, the 0.5mm thin sheet design minimizes the obstruction of the light path and the absorption of light energy, ensuring the overall light effect and avoiding the bulky overall structure caused by excessive thickness of the components, which is conducive to realizing the lightweight design of the light guide column mixing structure.

[0032] In summary, the light emitted by the multi-color LED 1 is initially conducted and diffused by the first light guide post 2, fully scattered and mixed by the frosted atomizing sheet 3, and then further homogenized and expanded by the second light guide post 4. Combined with the integrated trapezoidal octagonal structure formed by optical adhesive bonding, efficient light conduction, multiple scattering and uniform mixing between multiple media are achieved. Finally, a consistent, soft optical effect without significant color spots is formed on the light-emitting surface. It also has the advantages of compact structure, stable assembly and high light energy utilization.

[0033] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0034] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A light guide pillar light mixing structure, characterized in that, include: Multicolor LED (1); A first light guide column (2) is installed above the multi-color LED (1), a frosted atomizing sheet (3) is installed above the first light guide column (2), and a second light guide column (4) is installed above the frosted atomizing sheet (3).

2. The light guide pillar mixing structure according to claim 1, characterized in that, Both ends of the first light guide post (2) and the second light guide post (4) are octagonal.

3. The light guide pillar mixing structure according to claim 1, characterized in that, The first light guide post (2) and the second light guide post (4) are both made of high-purity PMMA.

4. The light guide pillar mixing structure according to claim 1, characterized in that, The front view of both the second light guide post (4) and the first light guide post (2) is set as a trapezoid with a wider top and a narrower bottom.

5. The light guide pillar mixing structure according to claim 1, characterized in that, The top view of both the multi-color LED (1) and the frosted atomizing sheet (3) is circular.

6. The light guide pillar mixing structure according to claim 1, characterized in that, The first light guide post (2), the second light guide post (4), and the frosted atomizing sheet (3) between them are all bonded together as a whole by optical adhesive.

7. The light guide pillar mixing structure according to claim 1, characterized in that, The frosted atomizing sheet (3) is configured as a thin sheet, and the thickness of the frosted atomizing sheet (3) is 0.5 mm.

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