Ceiling refraction lamp bead lampshade

Abstract

The application relates to a lampshade for a ceiling refractive lamp bead and relates to the technical field of lampshades, which comprises a frosted lampshade body. The application constructs an asymmetric integrated light path and heat dissipation structure inside the horn-shaped frosted lampshade body, comprehensively improves the lighting quality and use experience, and specifically, light first enters an upper collection and constraint conical cavity, a high-reflection mirror coating, a layer of diffuse reflection white coating and a gradient color reflection layer which are completely covered by the inner wall of the conical cavity work cooperatively, efficiently collect and fully mix the light, smoothly guide the light to a microlens array unit at the top end of a vertical light guide channel for forced homogenization, when the homogenized light descends in the channel, the lateral stray light is absorbed by a black light-absorbing layer, the purity of the light is ensured, then the light enters a fine light-emitting conical cavity, and finally is softened and diffused through the honeycomb protrusions on the inner side of the cavity and a frosted light-emitting bottom cover at the bottom end, forming a uniform surface light, and before light emission, the light is narrowed by a ring-shaped light shield.

Description

Technical Field

[0001] This application relates to the field of lampshade technology, and in particular to a lampshade for ceiling-reflecting LED beads. Background Technology

[0002] Currently, LED chips are commonly used as the light source for ceiling lighting fixtures. LED chips have advantages such as high brightness, low energy consumption, and long lifespan. However, the point light source characteristics of LED chips can easily lead to problems such as concentrated light and obvious glare, affecting lighting comfort and uniformity.

[0003] To address these issues, existing technologies primarily improve light distribution through lampshade structural design.

[0004] Existing lampshade structures primarily optimize single performance aspects such as improving light uniformity or controlling glare, making it difficult to achieve an ideal balance between efficient light energy utilization, excellent light uniformity, comfortable anti-glare effect, good heat dissipation, and a simple and reliable installation structure. Therefore, there is an urgent need for a novel integrated lampshade structure to further optimize the actual usage effect. Utility Model Content

[0005] The purpose of this application is to provide a lampshade for ceiling refraction LED beads, which forms a stable process of light collection, homogenization, purification to soft diffusion and anti-glare, and solves the problems mentioned in the background art.

[0006] The technical solution of the ceiling refraction lamp shade provided in this application is as follows: A ceiling refraction lamp shade includes a frosted lamp shade body. The interior of the frosted lamp shade body is provided with a collection and constraint conical cavity, a vertical light guide channel and a fine light emission conical cavity. The size of the fine light emission conical cavity is smaller than the size of the collection and constraint conical cavity. The collection and constraint conical cavity and the fine light emission conical cavity are connected through the vertical light guide channel. The collection and constraint conical cavity is located above the fine light emission conical cavity. A frosted light emission base is fixedly connected to the bottom end of the fine light emission conical cavity.

[0007] The top section of the inner wall of the collecting and constraining conical cavity is fixedly connected with a high-reflectivity mirror coating, the middle section of the inner wall of the collecting and constraining conical cavity is fixedly connected with a diffuse white coating, the bottom section of the inner wall of the collecting and constraining conical cavity is fixedly connected with a gradient color reflective layer, the top of the inner wall of the vertical light guide channel is fixedly connected with a microlens array unit, the upper surface of the microlens array unit is in contact with the bottom section of the gradient color reflective layer, and the inner sides of the fine light-emitting conical cavity and the frosted light-emitting base are both fixedly connected with uniformly distributed honeycomb protrusions.

[0008] By adopting the above technical solution, the collection and constraint conical cavity and the fine light-emitting conical cavity formed inside the frosted lampshade body constitute an asymmetrical optical path channel, which can efficiently collect light from the light source and constrain its propagation direction. The high-reflectivity mirror coating can efficiently reflect direct light downwards, reducing light energy loss. The diffuse white coating allows lateral light to be fully mixed in the cavity, eliminating initial light spots. The gradient color reflective layer realizes the smooth transition and convergence of light to the microlens array unit. After the light is homogenized by the microlens array unit, it is diffused and anti-glare treated through the fine light-emitting conical cavity and the honeycomb protrusions on the inner side of the frosted light-emitting base. Thus, a complete multi-level optical control system is constructed from the source to the outlet, which significantly improves the uniformity and softness of the emitted light.

[0009] Preferably, a black light-absorbing layer is fixedly connected to the inner wall of the vertical light guide channel, and the black light-absorbing layer is located below the microlens array unit.

[0010] By adopting the above technical solution, a black light-absorbing layer is set below the microlens array unit, which can effectively absorb stray light that still hits the side wall of the channel at a large angle after homogenization. This avoids stray light forming irregular secondary reflections or scattered light in the vertical light guide channel, prevents these interfering lights from affecting the homogenized main light path, and ensures that the light entering the fine light-emitting cone cavity from the channel is purer, which helps to further improve the contrast and visual clarity of the final light output.

[0011] Preferably, an annular light-shielding ring is fixedly connected to the bottom surface of the frosted lampshade body, and the inner diameter of the annular light-shielding ring is smaller than the diameter of the frosted light-emitting base cover.

[0012] By adopting the above technical solution, the annular light-shielding ring, as the outermost physical barrier, can directly block light emitted at a large angle from the edge of the frosted light-emitting base. This barrier limits the effective light emission angle of the lamp to a comfortable range, thereby cutting off the lateral glare path that directly enters the human eye's field of vision, significantly improving visual comfort when moving in different positions under the lamp, and serving as the last effective barrier to control glare.

[0013] Preferably, the top of the frosted lampshade body has a cavity, which is located between the frosted lampshade body and the collecting constraint conical cavity.

[0014] By adopting the above technical solution, a cavity is set between the top of the frosted lampshade body and the outer wall of the collection constraint cone cavity, creating a heat-insulating air layer surrounding the core light path. This cavity not only utilizes the low thermal conductivity of air to a certain extent to block the direct conduction of heat from the light source to the top of the lampshade, reducing the temperature of the touchable area on the surface of the frosted lampshade body, but more importantly, it provides a key space for heat transfer and temporary storage for the subsequent active heat dissipation system.

[0015] Preferably, the top of the outer surface of the frosted lampshade body is provided with evenly distributed heat dissipation vents, and all of the heat dissipation vents are connected to the cavity.

[0016] By adopting the above technical solution, the heat inside the cavity can be exchanged with the external environment through the heat dissipation vents, thus avoiding overheating.

[0017] Preferably, a positioning ring is fixedly connected to the top of the frosted lampshade body, and a uniformly distributed positioning base is fixedly connected to the outer surface of the positioning ring.

[0018] By adopting the above technical solution, the positioning ring fixed to the top of the frosted lampshade body and its positioning base form an installation interface for docking with the lamp body chassis on the ceiling. The uniform distribution of the positioning base ensures the balance and stability of the force during installation. This design allows the lampshade to be quickly and accurately aligned with the corresponding interface on the lamp body through the positioning base, which greatly simplifies the alignment steps in the installation process and improves installation efficiency and accuracy.

[0019] Preferably, an elastic pad is fixedly connected to the upper surface of the positioning ring, and a positioning bolt is installed on the inner wall of each positioning base.

[0020] By adopting the above technical solution, the elastic pad on the upper surface of the positioning ring is compressed and filled between the frosted lampshade body and the ceiling or lamp base after the frosted lampshade body is installed in place, which plays a good role in sealing and shock absorption. It can prevent dust from entering from the top gap and also buffer slight vibrations. At the same time, the positioning bolts passing through each positioning base provide mechanical locking force, firmly fixing the frosted lampshade body to the ceiling, ensuring the reliability and safety of the connection under long-term use and preventing loosening.

[0021] Preferably, the frosted lampshade body is horn-shaped, and the high-reflectivity mirror coating, diffuse white coating, and gradient color reflective layer cover the entire inner wall of the collecting and constraining conical cavity.

[0022] By adopting the above technical solution, the trumpet-shaped shape makes the frosted lampshade body more streamlined and aesthetically pleasing. At the same time, its structure is also conducive to the arrangement of the internal light path. The high-reflection mirror coating, diffuse white coating, and gradient color reflective layer completely cover the entire inner wall of the conical cavity, ensuring that light incident on the side wall of the cavity from any angle can be effectively processed. This full-coverage coating design maximizes the use of the cavity space for light control, providing a solid foundation for obtaining excellent optical performance.

[0023] In summary, this application includes at least one of the following beneficial technical effects: This ceiling-mounted refraction lampshade, by constructing an asymmetrical integrated light path and heat dissipation structure within its flared frosted lampshade body, comprehensively improves lighting quality and user experience. Specifically, light first enters the upper collecting and constraining conical cavity, where a high-reflectivity mirror coating, a diffuse white coating, and a gradient-color reflective layer, completely covering its inner wall, work together to efficiently collect and fully mix the light, smoothly guiding it to the microlens array unit at the top of the vertical light guide channel for forced homogenization. As the homogenized light descends within the channel, its lateral... Stray light is absorbed by the black light-absorbing layer to ensure light purity. It then enters the fine light-emitting cone cavity and is finally softened and diffused by the honeycomb protrusions on the inner side of the cavity and the frosted light-emitting bottom cover to form uniform surface light. Before light emission, the light is narrowed inward by the ring-shaped light-shielding ring to block large-angle glare. Thus, a stable process of light collection, homogenization, purification and soft diffusion and anti-glare is formed from the inside out. In addition, the cavity and heat dissipation vent work together to effectively dissipate the accumulated heat, which significantly optimizes the product's optical performance, heat dissipation efficiency and installation reliability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall front view structure of this application; Figure 2 This is a schematic diagram of the overall structure of this application from below; Figure 3 This is a schematic diagram of the overall sectional planar structure of this application; Figure 4 This is a schematic diagram of the overall cross-sectional top view of the structure of this application; Figure 5 This is a partial cross-sectional view of the structure from below.

[0025] In the picture: 1. Frosted lampshade body; 2. Conical cavity for light collection and constraint; 3. Vertical light guide channel; 4. Fine light-emitting conical cavity; 5. Frosted light-emitting base cover; 6. High-reflectivity mirror coating; 7. Diffuse white coating; 8. Gradient color reflective layer; 9. Microlens array unit; 10. Black light-absorbing layer; 11. Honeycomb protrusions; 12. Annular light-shielding ring; 13. Cavity; 14. Heat dissipation vent; 15. Positioning ring; 16. Elastic pad; 17. Positioning base; 18. Positioning bolt. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0027] Example 1: A lampshade for ceiling-mounted refraction LED beads, refer to Figure 1 , Figure 3 and Figure 5The system includes a frosted lampshade body 1. Inside the frosted lampshade body 1 are a collection and constraint conical cavity 2, a vertical light guide channel 3, and a fine light-emitting conical cavity 4. The size of the fine light-emitting conical cavity 4 is smaller than the size of the collection and constraint conical cavity 2. The collection and constraint conical cavity 2 and the fine light-emitting conical cavity 4 are connected through the vertical light guide channel 3. The collection and constraint conical cavity 2 is located above the fine light-emitting conical cavity 4. A frosted light-emitting base cover 5 is fixedly connected to the bottom end of the fine light-emitting conical cavity 4. A high-reflectivity mirror coating 6 is fixedly connected to the top section of the inner wall of the collection and constraint conical cavity 2. A diffuse white coating 7 is fixedly connected to the middle section of the inner wall of the collection and constraint conical cavity 2. A gradient coating 7 is fixedly connected to the bottom section of the inner wall of the collection and constraint conical cavity 2. The frosted lampshade body 1 has a trumpet-shaped shape, with a color-changing reflective layer 8. The high-reflectivity mirror coating 6, the diffuse white coating 7, and the gradient color reflective layer 8 cover the entire inner wall of the collecting and constraining conical cavity 2. The trumpet-shaped shape makes the frosted lampshade body 1 more streamlined and aesthetically pleasing. At the same time, its structure is also conducive to the arrangement of the internal light path. The high-reflectivity mirror coating 6, the diffuse white coating 7, and the gradient color reflective layer 8 completely cover the entire inner wall of the collecting and constraining conical cavity 2, ensuring that light incident on the side wall of the cavity from any angle can be effectively processed. This full-coverage coating design maximizes the use of the cavity space for light control, providing a solid foundation for obtaining excellent optical performance.

[0028] Reference Figure 3 , Figure 4 and Figure 5 A microlens array unit 9 is fixedly connected to the top of the inner wall of the vertical light guide channel 3. The upper surface of the microlens array unit 9 is in contact with the bottom section of the gradient color reflective layer 8. A black light-absorbing layer 10 is fixedly connected to the inner wall of the vertical light guide channel 3. The black light-absorbing layer 10 is located below the microlens array unit 9. The black light-absorbing layer 10 located below the microlens array unit 9 can effectively absorb stray light that still hits the side wall of the channel at a large angle after homogenization. This avoids stray light forming irregular secondary reflections or scattered light in the vertical light guide channel 3, and prevents these interfering lights from affecting the homogenized light. The optimized main light path ensures that the light entering the fine light-emitting cone cavity 4 from the channel is purer, which helps to further improve the contrast and visual clarity of the final light output. Both the fine light-emitting cone cavity 4 and the frosted light-emitting base 5 have uniformly distributed honeycomb protrusions 11 fixedly connected to their inner sides. An annular light-shielding ring 12 is fixedly connected to the bottom surface of the frosted lampshade body 1. The inner diameter of the annular light-shielding ring 12 is smaller than the diameter of the frosted light-emitting base 5. As the outermost physical barrier, the annular light-shielding ring 12's inwardly narrowing structure can directly block light emitted at a large angle from the edge of the frosted light-emitting base 5. This barrier limits the effective light output angle of the lamp to a comfortable range, thereby cutting off the lateral glare path that directly enters the human eye's field of vision, significantly improving visual comfort when moving in different positions under the lamp, and serving as the last effective barrier to control glare.

[0029] Example 2: A lampshade for ceiling-mounted refraction LED beads, refer to Figure 2 , Figure 3 and Figure 4 Based on the same concept as Embodiment 1 above, this embodiment proposes that the top of the frosted lampshade body 1 has a cavity 13. The cavity 13 is located between the frosted lampshade body 1 and the collection and constraint conical cavity 2. The cavity 13 is set between the top of the frosted lampshade body 1 and the outer wall of the collection and constraint conical cavity 2, creating a heat-insulating air layer surrounding the core light path. The cavity 13 not only utilizes the low thermal conductivity of air to a certain extent to block the direct conduction of heat from the light source to the top of the lampshade, reducing the temperature of the touchable area on the surface of the frosted lampshade body 1, but more importantly, it provides a key space for heat transfer and temporary storage for the subsequent active heat dissipation system. The top of the outer surface of the frosted lampshade body 1 has uniformly distributed heat dissipation vents 14, and multiple heat dissipation vents 14 are connected to the cavity 13. The heat inside the cavity 13 can be exchanged with the external environment through the heat dissipation vents 14 to avoid overheating.

[0030] Reference Figure 1 , Figure 2 and Figure 3 A positioning ring 15 is fixedly connected to the top of the frosted lampshade body 1. Evenly distributed positioning bases 17 are fixedly connected to the outer surface of the positioning ring 15. The positioning ring 15 and the positioning bases 17 fixed to the top of the frosted lampshade body 1 form an installation interface for docking with the lamp base on the ceiling. The even distribution of the positioning bases 17 ensures balanced and stable force during installation. This design allows the lampshade to be quickly and accurately aligned with the corresponding interface on the lamp body via the positioning bases 17, greatly simplifying the alignment steps during installation and improving installation efficiency and accuracy. The upper surface of the positioning ring 15... The fixed connection is provided with elastic pads 16, and each positioning base 17 has a positioning bolt 18 installed on its inner wall. After the frosted lampshade body 1 is installed in place, the elastic pads 16 on the upper surface of the positioning ring 15 are compressed and filled between the frosted lampshade body 1 and the ceiling or lamp base, which plays a good role in sealing and shock absorption. This can prevent dust from entering from the top gap and also buffer slight vibrations. At the same time, the positioning bolts 18 passing through each positioning base 17 provide mechanical locking force to firmly fix the frosted lampshade body 1 to the ceiling, ensuring the reliability and safety of the connection under long-term use and preventing loosening.

[0031] It should be noted that the high-reflectivity mirror coating 6 is preferably a metal reflective film formed on the inner surface of the top of the collecting and constraining conical cavity 2 by vacuum evaporation or magnetron sputtering. Specifically, an aluminum film or a silver film can be used. As an alternative, the coating can also be a multilayer dielectric optical film, achieving high reflectivity in a specific spectral range through the principle of interference. The diffuse white coating 7 is a high-reflectivity diffuse scattering material layer coated or sintered on the inner wall of the cavity. It is preferably a white diffuse reflective coating made of high-purity barium sulfate or titanium oxide particles mixed with a heat-resistant binder. After coating and drying, the surface has a uniform matte finish to achieve sufficient diffusion and mixing of light. The gradient color reflective layer 8 is a functional layer that achieves a smooth transition of reflectivity from high to low. In essence, this can be achieved through two main processes: one is to use screen printing technology to print the above-mentioned diffuse white coating paste on the substrate in a dot distribution pattern from dense to sparse, forming a gradient in physical thickness or coverage density; the other is to control the movement trajectory and output of the spray gun during spraying to make the coating thickness change continuously, thereby achieving a gradual change in reflective properties. The underlying principle is to modulate the local reflectivity by controlling the material distribution. The microlens array unit 9 is an independent optical device, and its material must have high light transmittance, low dispersion, and good thermal stability. It is preferably made of transparent resins such as optical-grade polymethyl methacrylate, PC, or cyclic olefin copolymers, and manufactured by precision injection molding or ultraviolet curing molding process. Its microlens surface usually needs to be coated with an anti-reflection film to reduce the loss of interface reflected light. The black light-absorbing layer 10 is a dark light-absorbing material coated on the inner wall of the vertical light guide channel 3. It is preferably a black matte paint with added high-efficiency light absorbers such as carbon black, which can absorb stray light very effectively.

[0032] The implementation principle of this application embodiment is as follows: The light emitted by the light source of the ceiling lamp bead first enters the collection and constraint conical cavity 2 inside the frosted lampshade body 1. When the light propagates in the cavity, it is efficiently reflected downwards when it encounters the high-reflectivity mirror coating 6 at the top section, and is fully scattered and mixed when it encounters the diffuse white coating 7 in the middle section. This process eliminates the original light spot and makes the light field tend to be uniform. Subsequently, the light is smoothly guided by the gradient color reflective layer 8 at the bottom section and converges to the microlens array unit 9 at the top of the vertical light guide channel 3. The microlens array unit 9 performs a key secondary precision homogenization of the light, forming a uniformly distributed beam. The homogenized beam is transmitted downwards in the vertical light guide channel 3, and the stray light at its edge is absorbed by the black light-absorbing layer 10 on the inner wall of the channel, thereby purifying the light path. After that, the beam enters the smaller fine light-emitting conical cavity 4 and reaches the frosted light-emitting bottom cover 5. The honeycomb protrusions 11 evenly distributed on the inner side of the cavity and the bottom cover perform a final light-emitting process. The light diffuses and diffuses the light, providing initial anti-glare protection. Finally, before the light is emitted, the annular light-shielding ring 12 fixed to the bottom surface of the frosted lampshade body 1 intercepts the light emitted at a large angle due to its inward-narrowing physical structure, further eliminating direct glare and ensuring comfortable and uniform light output. At the same time, the heat generated when the lamp is working is partially buffered by the air in the cavity 13 surrounding the collection and constraint cone cavity 2, and the other part is dissipated through multiple heat dissipation vents 14 connected to it. Through the exchange of air with the outside air and the air inside the cavity 13, high temperature is effectively avoided. In terms of installation, the positioning bases 17 evenly distributed on the positioning ring 15 at the top of the frosted lampshade body 1 are quickly aligned with the lamp base on the ceiling, and the positioning bolts 18 are used for fastening. The elastic pads 16 on the upper surface of the positioning ring 15 achieve sealing and shock absorption, which together ensures the convenience, accuracy and long-term stability of the lamp installation.

Claims

1. A lampshade for ceiling-mounted refracting LED beads, comprising a frosted lampshade body (1), characterized in that: The interior of the frosted lampshade body (1) is provided with a collection and constraint conical cavity (2), a vertical light guide channel (3), and a fine light emission conical cavity (4). The size of the fine light emission conical cavity (4) is smaller than that of the collection and constraint conical cavity (2). The collection and constraint conical cavity (2) and the fine light emission conical cavity (4) are connected through the vertical light guide channel (3). The collection and constraint conical cavity (2) is located above the fine light emission conical cavity (4). The bottom end of the fine light emission conical cavity (4) is fixedly connected to a frosted light emission base cover (5). The top section of the inner wall of the collecting and constraining conical cavity (2) is fixedly connected with a high-reflectivity mirror coating (6), the middle section of the inner wall of the collecting and constraining conical cavity (2) is fixedly connected with a diffuse white coating (7), the bottom section of the inner wall of the collecting and constraining conical cavity (2) is fixedly connected with a gradient color reflective layer (8), the top of the inner wall of the vertical light guide channel (3) is fixedly connected with a microlens array unit (9), the upper surface of the microlens array unit (9) is in contact with the bottom section of the gradient color reflective layer (8), and the inner sides of the fine light-emitting conical cavity (4) and the frosted light-emitting bottom cover (5) are both fixedly connected with uniformly distributed honeycomb protrusions (11).

2. A lampshade for ceiling-mounted refracting LED beads according to claim 1, characterized in that: The inner wall of the vertical light guide channel (3) is fixedly connected with a black light-absorbing layer (10), which is located below the microlens array unit (9).

3. A lampshade for ceiling-mounted refracting LED beads according to claim 1, characterized in that: The bottom surface of the frosted lampshade body (1) is fixedly connected to an annular light-shielding ring (12), and the inner diameter of the annular light-shielding ring (12) is smaller than the diameter of the frosted light-emitting base cover (5).

4. A lampshade for ceiling-mounted refracting LED beads according to claim 1, characterized in that: The top of the frosted lampshade body (1) has a cavity (13) located between the frosted lampshade body (1) and the collection and constraint conical cavity (2).

5. A lampshade for ceiling-mounted refracting LED beads according to claim 4, characterized in that: The top of the outer surface of the frosted lampshade body (1) is provided with evenly distributed heat dissipation vents (14), and all of the heat dissipation vents (14) are connected to the cavity (13).

6. A lampshade for ceiling-mounted refracting LED beads according to claim 1, characterized in that: The top of the frosted lampshade body (1) is fixedly connected to a positioning ring (15), and the outer surface of the positioning ring (15) is fixedly connected to a uniformly distributed positioning base (17).

7. A lampshade for ceiling-mounted refraction LED beads according to claim 6, characterized in that: An elastic pad (16) is fixedly connected to the upper surface of the positioning ring (15), and a positioning bolt (18) is installed on the inner wall of each positioning base (17).

8. A lampshade for ceiling-mounted refraction LED beads according to claim 1, characterized in that: The frosted lampshade body (1) is horn-shaped, and the high-reflection mirror coating (6), diffuse white coating (7) and gradient color reflective layer (8) cover the entire inner wall of the collecting and constraining conical cavity (2).

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