Starry sky top light source irradiation assembly
By combining light guides and light sources, a large-area illumination of a single light source is achieved, solving the problems of low production capacity and poor 3D effect of existing automotive starry sky dome lights, and improving energy utilization and product consistency.
Patent Information
- Application Number
- CN202423317304.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing automotive starry sky dome lights require manual fiber insertion, resulting in low production capacity, poor product consistency, fixed and limited light-emitting points, inability to achieve large-area illumination, serious energy consumption, and poor 3D effect.
It employs a combination of light guide components and light sources. The light guide components include light guide strips, light guide extension strips, and light guide output heads. Multiple ranges of illumination can be achieved through a single light source. The diffuse reflection and divergence of the light guide components are used to increase the divergence range of the light source. Combined with the control system, the flashing time and color are adjusted.
It improves the utilization rate of individual light sources, enables the illumination of large-area light sources, enhances 3D effects, reduces energy consumption, and improves product consistency.
Smart Images
Figure CN223550306U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of starry sky top illumination technology, and more specifically, relates to a starry sky top light source illumination component. Background Technology
[0002] Starlight ceilings, as a captivating form of ambient lighting, combine modern technology with art, becoming a powerful tool for designers to create spatial ambiance. In recent years, they have gained increasingly widespread use in the spatial decoration of various leisure and entertainment venues both domestically and internationally, especially in automotive interiors, providing drivers with a comfortable driving experience.
[0003] Current automotive starry sky roofs typically use LED lighting. This is achieved by drilling holes in the roof and placing optical fibers in the light-transmitting areas. The fibers pass through the holes to conduct light to the perforated areas, with fibers of varying diameters distributed throughout to create super-bright stars, bright stars, faint stars, and star patterns. The starlight flickers, allowing different colors to alternate or be focused on a specific color. However, this lighting method requires manual fiber insertion, resulting in low production capacity, poor product consistency, and a limited number of fixed light-emitting points. The level of illumination depends on the fiber length and diameter, leading to a poor 3D effect. Furthermore, the large amount of fiber required makes it impossible to illuminate a large area of starry sky patterns with a single light source, resulting in low utilization of individual light sources and significant energy consumption. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a starry sky top light source illumination component, which can realize multi-range illumination through a single light source component.
[0005] This utility model discloses a starry sky top light source illumination component, comprising a panel, a light guide, and a light source; the panel has several light-emitting points that are translucent; the light source is located on the back side of the panel; the light emission direction of the light source is towards the panel, and its light emission range is divergent; the light guide is located between the light source and the panel to transmit light; a gap is maintained between the input end of the light guide and the light source to capture only a portion of the light emitted by the light source; a portion of the light emitted by the light source that overflows from the light guide is projected onto the panel and illuminates at least a portion of the light-emitting points; the output end of the light guide abuts against the corresponding light-emitting point to transmit light.
[0006] As a further improvement of this utility model, the light guiding portion of the light guide is at least partially smooth and without light teeth, so as to diffusely reflect light outwards, and the diffusely reflected light includes light-emitting points in the projection range on the panel.
[0007] As a further improvement of this utility model, the light guide includes multiple output ends; each output end abuts against a corresponding light-emitting point to simultaneously illuminate the corresponding position.
[0008] As a further improvement of this utility model, the light guide includes a light guide strip located between the light source and the light-emitting point, and the light guide strip is the input end of the light guide; the light guide strip extends outward in multiple directions from the end away from the light source as multiple light guide extension strips are provided; each light guide extension strip has a corresponding light guide output head at its end, and the output end of each light guide output head corresponds to a light-emitting point, and the output end of each light guide output head abuts against the corresponding light-emitting point; the light guide strip, the light guide extension strip, and the light guide output head are integrally formed.
[0009] As a further improvement of this utility model, the light-emitting points include pattern slots, star slots, and star slots, and the above-mentioned light-emitting points of different shapes are used to form a night sky simulation pattern with constellation graphics.
[0010] As a further improvement of this utility model, the light source is electrically connected to the control system of the peripheral device so that the flashing time and / or flashing color can be changed.
[0011] As a further improvement of this utility model, multiple light sources are provided, and each light source has a corresponding light guide to emit light independently.
[0012] As a further improvement of this utility model, the panel is the end face of the light guide plate; a light source cavity is opened in the light guide plate; both the light guide and the light source are disposed in the light source cavity.
[0013] As a further improvement of this utility model, the panel is made of a light-transmitting material, and the surface except for the light-emitting points is covered with a light-shielding membrane.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention increases the illumination range of the light guide strip by adjusting the spacing between the light source and the light guide strip. Compared to traditional starry sky ceiling lights, this invention can diffuse light from a single light source over a wider area. The light at the convergence point of the light source is transmitted and dispersed along the path direction through the light guide strip and its extension strip. Finally, the light is illuminated point-to-point through the light guide output head. This design effectively increases the light dispersion range of a single light source by increasing the distance between the light guide strip and the light source, greatly improving the utilization rate of a single light source. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the starry sky ceiling of this utility model;
[0017] Figure 2 This is a top view of the structure of this utility model;
[0018] Figure 3 This is a side view and a partially enlarged schematic diagram of the present invention.
[0019] Figure 4 This is a schematic diagram of the scattering angle and light propagation path structure of the light guide component of this utility model;
[0020] Figure 5 This is a schematic diagram of the diverging light path structure between the light guide and the light source of this utility model;
[0021] Figure 6 This is a schematic diagram of the diverging light path structure of the light guide extension strip of this utility model.
[0022] Explanation of the labels in the diagram:
[0023] Light guide plate 1, pattern groove 11, star groove 12, star groove 13, light source cavity 14, light source 2, light guide strip 21, light guide extension strip 211, light guide output head 212. Detailed Implementation
[0024] Specific Implementation Example 1: Please refer to Figures 1-5 A starry sky top light source illumination component includes a light guide plate 1 on the outer layer. The light guide plate 1 is made of a light-transmitting material and has a certain degree of light transmittance. Multiple light-emitting points are formed on the upper surface of the light guide plate 1. These multiple light-emitting points are etched onto the light guide plate 1, and each of these points has the function of transmitting light for illumination. The end surface of the light guide plate 1 without light-emitting points is not light-transmitting; preferably, the end surface of the light guide plate 1 without light-emitting points is uniformly covered with a light-shielding membrane. The multiple light-emitting points include pattern grooves 11, star grooves 12, and star slots 13, which together form a night sky simulation pattern with constellation graphics.
[0025] The inner layer of the light guide plate 1 has a light source cavity 14. A light source 2 is disposed on the end face of the light source cavity 14 away from the light-emitting point, and the light emission direction of the light source 2 is oriented towards the end face of the multiple light-emitting points. A light guide strip 21 is disposed between the light source 2 and the light-emitting point to input light into the input end of the light guide strip 21 through the illumination of the light source 2. There is a certain distance between the light source 2 and the light guide strip 21. The light source 2 is preferably an LED lamp, and the illumination range of the light source 2 is divergent, as detailed in [details omitted]. Figure 4 The distance between the light source 2 and the light guide strip 21 causes the divergence angle of the light source 2 to overflow along the outer periphery of the light guide strip 21, so that part of the light overflowing from the light source 2 can be projected onto the light guide plate 1, illuminating part of the light-emitting points. For example... Figure 5 As shown, the distance between the light source 2 and the light guide strip 21 increases the diffusion range of the light source 2, so that a single light source 2 can illuminate a large area of pattern groove 11.
[0026] The light guide strip 21 extends outward in multiple directions from the end furthest from the light source 2, forming multiple light guide extension strips 211. Each light guide extension strip 211 has a corresponding light guide output head 212 at its end. Each light guide output head 212 has an output end corresponding to a light-emitting point, and its output end abuts against the corresponding light-emitting point to transmit light to that point. The light guide strip 21, the light guide extension strips 211, and the light guide output heads 212 are integrally formed and collectively referred to as a light guide component. The light guide strip 21 is the input end of the light guide component, the light guide extension strips 211 are the light transmission segments of the light guide component, and the light guide output heads 212 are the output ends of the light guide component.
[0027] The inner light-guiding layer of the light guide component may be partially or completely free of optical serrations. Preferably, the inner light-guiding layer of the light guide component is completely free of optical serrations to increase the diffusion of light along the path direction. Figure 6 As shown, the light guide has light diffusion and divergence in the path direction. When the inner layer of the light guide is not provided with light teeth, the light guide itself has a certain degree of diffuse reflection to overflow the light in the path direction of the light guide to achieve auxiliary illumination.
[0028] It should be noted that this solution has at least three light source divergence points:
[0029] First light source divergence point: There is a certain distance between the light source 2 and the light guide strip 21. The distance caused by the distance makes the light source 2 itself overflow along the outer periphery of the light guide strip 21, so as to increase the projection area of the light source 2 illuminating from the near end to the far end. The light emission direction of the light source 2 is towards the light guide plate 1, so as to illuminate the pattern groove 11 and / or star groove 12 and / or star groove 13 within the divergence range overflowed by the light source 2.
[0030] The second light source divergence point: The light guide strip 21 absorbs the light from the light source 2, and then outputs it through the light guide strip 21 to multiple light guide extension strips 211 arranged in the path direction. Finally, the light is output through the light guide output heads 212 arranged at the ends of the multiple light guide extension strips 211. The light guide output head 212 of each light guide extension strip 211 is arranged correspondingly to the star point slot 12 and / or star slot 13 to illuminate the star point slot 12 and / or star slot 13 within the output range of the light guide output head 212.
[0031] The third light source divergence point serves as an auxiliary light source. The inner layer of the light guide component lacks optical teeth to ensure the light guide component exhibits light divergence along its path. The light diverged along the path by the light guide component illuminates the patterned grooves 11 and / or the star-shaped grooves 12 and / or the star-shaped grooves 13 within the divergence range of the light guide component along its path.
[0032] Working principle:
[0033] In use, this invention guides light into a light guide strip via a single light source at the lower end of the light guide plate. As the light enters, it extends outwards through multiple path-directing light guide extension strips, and then transmits the light to the far end of the light source via a light guide output head. Simultaneously, a certain distance is maintained between the light source and the light guide strip, increasing the projected area of the light source's divergence angle relative to when it is completely against the light guide strip. Furthermore, the inner layer of the light guide extension strip is entirely without optical teeth, allowing for diffuse reflection and divergence of light even within the path-directing range of the light guide extension strip.
[0034] Specific Embodiment Two: Unlike Specific Embodiment One, the light guide component has multiple light teeth at its input and output ends. Specifically, the inner layer of the light guide strip 21 has multiple evenly arranged light teeth, and the inner layer of the light guide output head 212 has multiple evenly arranged light teeth. The inner layer of the light guide extension strip 211 does not have any light teeth. These light teeth are used to adjust the brightness of the input and output ends of the light guide component, and the brightness is adjusted by the width and spacing of the light teeth to achieve light transmission along the path. It should be noted that in this embodiment, the light teeth are located at the input and output ends of the light guide component to ensure brighter light transmission at these locations and maintain stable light path transmission. However, since no light teeth are present on the path of the light guide extension strip 211, the light can diffuse in multiple directions, and the light is diffusely reflected outwards along the light transmission path, illuminating multiple light-emitting points within the projection range.
[0035] Specific Embodiment Three: Unlike Specific Embodiment One, the LED of the light source 2 is connected to a controller, and the light source 2 is electrically connected to the controller. The controller is used to control the working mode of the LED, including adjusting the flashing time and / or the color of the light.
[0036] Specific Embodiment Four: Unlike Specific Embodiment One, the light guide plate 1 further includes multiple light sources 2 within its light source cavity 14. The light sources 2 are equidistantly arranged within the light source cavity 14. The light emission direction of the multiple light sources 2 is directed towards the end faces of the multiple light emission points. A corresponding light guide is provided between each light source 2 and each light emission point, and a certain gap is maintained between each of the multiple light sources 2 and its corresponding light guide.
[0037] Specific Embodiment Five: Unlike Specific Embodiment One, the end of the light guide strip 21 furthest from the light source 2 has a light guide extension strip 211 extending outward. A light guide output head 212 is provided at the end of the light guide extension strip 211 furthest from the light guide strip 21. The light guide output head 212 is correspondingly positioned to a single light-emitting point, allowing the light guide output head 212 to output light to the corresponding light-emitting point. The light guide output head 212 and the corresponding light-emitting point are positioned in contact with each other. It should be noted that each light guide output head 212 illuminates only a single light-emitting point.
Claims
1. A starry sky top light source illumination assembly, characterized in that: Includes panel, light guide and light source (2); The panel has several light-emitting points that allow light to pass through. The light source (2) is located on the back side of the panel; the light emission direction of the light source (2) is towards the panel, and its light emission range is diffuse; The light guide is located between the light source (2) and the panel to transmit light; a gap is maintained between the input end of the light guide and the light source (2) to obtain only a portion of the light emitted by the light source (2); a portion of the light emitted by the light source (2) overflows from the light guide and is projected onto the panel, illuminating at least a portion of the light-emitting points; the output end of the light guide abuts against the corresponding light-emitting point to transmit light.
2. The starry sky top light source illumination assembly according to claim 1, characterized in that: The light guide portion of the light guide is at least partially smooth and without light teeth, so as to diffusely reflect light outwards, and the diffusely reflected light includes light-emitting points in the projection range on the panel.
3. The starry sky top light source illumination assembly according to claim 1, characterized in that: The light guide includes multiple output ends; each output end abuts against a corresponding light-emitting point to simultaneously illuminate the corresponding position.
4. The starry sky top light source illumination assembly according to claim 3, characterized in that: The light guide includes a light guide strip (21), which is located between the light source (2) and the light emission point. The light guide strip (21) is the input end of the light guide. The light guide strip (21) has multiple light guide extension strips (211) extending outward in multiple directions from the end away from the light source (2). Each light guide extension strip (211) has a corresponding light guide output head (212) at its end. The output end of each light guide output head (212) corresponds to a light emission point, and the output end of each light guide output head (212) abuts against the corresponding light emission point. The light guide strip (21), the light guide extension strip (211), and the light guide output head (212) are made as a single unit.
5. A starry sky top light source illumination assembly according to claim 1, characterized in that: The light-emitting points include pattern slots (11), star slots (12), and star slots (13), which together form a night sky simulation pattern with constellation graphics.
6. A starry sky top light source illumination assembly according to claim 1, characterized in that: The light source (2) is electrically connected to the control system of the peripheral device so that the flashing time and / or flashing color can be changed.
7. A starry sky top light source illumination assembly according to claim 1, characterized in that: There are multiple light sources (2), and each light source (2) has a corresponding light guide to emit light independently.
8. A starry sky top light source illumination assembly according to claim 1, characterized in that: The panel is the end face of the light guide plate (1); a light source cavity (14) is opened inside the light guide plate (1); the light guide and the light source (2) are both located inside the light source cavity (14).
9. A starry sky top light source illumination assembly according to claim 1, characterized in that: The panel is made of a light-transmitting material, and the surface except for the light-emitting points is covered with a light-blocking membrane.