Prism table light distribution structure
By using a truncated pyramid light distribution structure for multiple total internal reflections, the contradiction between high efficiency and uniformity in automotive lights is resolved, achieving improvements in light uniformity and cost-effectiveness, simplifying circuit design, and reducing heat risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-08
AI Technical Summary
Existing automotive lighting technology struggles to achieve uniformity while maintaining high efficiency, leading to complex circuitry, increased costs, and increased heat generation.
The light distribution structure adopts a truncated pyramid structure, including first and second light distribution units. It achieves light uniformity through multiple total internal reflections and utilizes the truncated pyramid-shaped reflective surface to perform multiple total internal reflections and convergence of light, thereby reducing costs and simplifying circuit design.
It improves the uniformity of light and the lighting effect, reduces costs and simplifies circuit design, and avoids heat generation.
Smart Images
Figure CN224215168U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive lighting technology, specifically relating to a truncated beam light distribution structure. Background Technology
[0002] With the rapid development of automotive lighting technology and consumers' increasing pursuit of lighting effects, production costs and efficiency are also urgent issues for automotive lighting suppliers to address. In existing solutions, light emitted from LEDs passes through a series of processing devices before exiting from the light-emitting surface to achieve a more uniform lighting effect.
[0003] In traditional projects, known solutions struggle to guarantee uniformity while ensuring high efficiency. Conversely, ensuring uniformity can lead to low efficiency, increase LED raw material costs, complicate circuit design, and raise heat risks. Utility Model Content
[0004] The purpose of this invention is to provide a truncated beam light distribution structure to solve the technical problems of existing solutions where increasing the cost of vehicle headlights to ensure high efficiency and uniformity leads to complex circuits and increased heat generation. The new light distribution structure allows light to be emitted after multiple total internal reflections within the system, resulting in uniform and efficient illumination, clear visibility, and versatility.
[0005] To solve the above-mentioned technical problems, this utility model provides a frustum light distribution structure, comprising: 1. a frustum light distribution structure, characterized in that it comprises:
[0006] The first light distribution unit includes: a first reflective part and a second reflective part arranged in a mirror image, both of which are frustum-shaped.
[0007] The second light distribution unit is arranged parallel to the first light distribution unit. The second light distribution unit includes a third reflective part and a fourth reflective part arranged in a mirror image, and both the third reflective part and the fourth reflective part are truncated pyramidal in shape.
[0008] Parallel light rays directed toward the first reflector are totally reflected by the first reflector and then directed toward the fourth reflector, and are then totally reflected by the fourth reflector and emitted horizontally.
[0009] Parallel light rays incident on the second reflector are totally reflected by the second reflector and then incident on the third reflector, after which they are emitted horizontally.
[0010] Furthermore, the first reflective part includes: four interconnected first reflective surfaces, each of which is inclined relative to the vertical direction, and the top area of the first reflective part is larger than the bottom area of the first reflective part.
[0011] The first reflective surface is used for total internal reflection of parallel light rays, which are emitted at an angle from the bottom.
[0012] Furthermore, the second reflective part includes: four interconnected second reflective surfaces, each of which is inclined relative to the vertical direction, and the top area of the second reflective part is larger than the bottom area of the second reflective part;
[0013] The second reflector is used for total internal reflection of parallel light rays, which are then emitted at an angle from the top.
[0014] Furthermore, the third reflective part includes: four interconnected third reflective surfaces, each of which is inclined relative to the vertical direction, and the top area of the third reflective part is larger than the bottom area of the third reflective part;
[0015] The third reflecting surface is used for total internal reflection of tilted light rays so that they are emitted horizontally.
[0016] Furthermore, the fourth reflective part includes: four interconnected fourth reflective surfaces, each of which is inclined relative to the vertical direction, and the top area of the fourth reflective part is larger than the bottom area of the fourth reflective part.
[0017] The fourth reflecting surface is used for total internal reflection of tilted light rays so that they are emitted horizontally.
[0018] Furthermore, the parallel light rays incident on the first reflecting surface are totally reflected by the first reflecting surface and then obliquely incident on the fourth reflecting surface adjacent to the first reflecting surface, and are then totally reflected by the fourth reflecting surface and then emitted horizontally.
[0019] Parallel light rays incident on the second reflecting surface are totally reflected by the second reflecting surface and then obliquely incident on the third reflecting surface adjacent to the second reflecting surface. After being totally reflected by the third reflecting surface, they are emitted horizontally.
[0020] Furthermore, it also includes: a thick-walled component, wherein both the first light distribution unit and the second light distribution unit are disposed within the thick-walled component; and multiple first light distribution units and multiple second light distribution units are disposed, with the multiple first light distribution units and second light distribution units arranged longitudinally and laterally.
[0021] Furthermore, a concentrator is provided at one end of the thick-walled component near the first light distribution unit. The concentrator is located at the bottom end of the thick-walled component and is used to focus light rays and direct them parallel to the first light distribution unit.
[0022] The beneficial effects of this utility model are:
[0023] This invention, by setting up a first light distribution unit and a second light distribution unit, allows the light from above to be emitted after total reflection by the first and fourth reflecting surfaces in sequence, and the light from below to be emitted after total reflection by the second and third reflecting surfaces in sequence. The uniformity of the light is improved after multiple total reflections, and the structure is simple and low-cost, improving efficiency while reducing costs.
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the truncated pyramid light distribution structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the structure of the first light distribution unit of this utility model;
[0028] Figure 3 This is a schematic diagram of the structure of the second light distribution unit of this utility model;
[0029] Figure 4 This is the optical path diagram of the relational concept of this utility model, which shows the total internal reflection of the light through the first light distribution unit and the second light distribution unit in sequence.
[0030] In the picture:
[0031] 1. First light distribution unit; 11. First reflective surface; 12. Second reflective surface; 13. First reflective part; 14. Second reflective part; 2. Second light distribution unit; 21. Third reflective surface; 22. Fourth reflective surface; 23. Third reflective part; 24. Fourth reflective part; 3. Thick-walled component; 4. Concentrator. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0033] Example 1:
[0034] like Figures 1 to 4 As shown, the truncated beam light distribution structure includes: a first light distribution unit 1 and a second light distribution unit 2. The second light distribution unit 2 is arranged parallel to the first light distribution unit 1. After total reflection by the first light distribution unit 1, the light is incident on the second light distribution unit 2, and after total reflection by the second light distribution unit 2, it is emitted in parallel. After multiple total reflections, the uniformity of the light is improved, and the lighting effect is better.
[0035] like Figure 2 As shown, the first light distribution unit 1 includes: a first reflective part 13 and a second reflective part 14 arranged in a mirror image, both the first reflective part 13 and the second reflective part 14 are frustum-shaped; both the first reflective part 13 and the second reflective part 14 have open structures at the top and bottom, and both have four surfaces, the first reflective part 13 is inverted frustum-shaped, the second reflective part 14 is upright frustum-shaped, and the bottom end of the first reflective part 13 is connected to the top end of the second reflective part 14.
[0036] like Figure 3 As shown, the second light distribution unit 2 includes a third reflective part 23 and a fourth reflective part 24 arranged in a mirror image. Both the third reflective part 23 and the fourth reflective part 24 are truncated pyramidal in shape. Both the third reflective part 23 and the fourth reflective part 24 have open structures at the top and bottom, and each has four surfaces. The third reflective part 23 is truncated pyramidal in shape, and the second reflective part 24 is truncated pyramidal in shape. The bottom end of the third reflective part 23 is connected to the top end of the fourth reflective part 24.
[0037] Parallel light rays directed towards the first reflector 13 are totally reflected by the first reflector 13 and then directed towards the fourth reflector 24, where they are totally reflected again before being emitted horizontally. Parallel light rays directed towards the second reflector 14 are totally reflected by the second reflector 14 and then directed towards the third reflector 23, where they are totally reflected again before being emitted horizontally. Light rays from above are totally reflected by the first reflector 13 and the fourth reflector 24 in sequence before being emitted horizontally from below. Light rays from below are totally reflected by the second reflector 14 and the third reflector 23 in sequence before being emitted horizontally from above. The multiple total reflections improve the uniformity of the light rays and enhance the lighting effect.
[0038] In this embodiment, the first reflective part 13 includes: four interconnected first reflective surfaces 11, each of which is inclined relative to the vertical direction, and the top area of the first reflective part 13 is larger than the bottom area of the first reflective part 13; the two ends of adjacent first reflective surfaces 11 are connected to each other, and the four first reflective surfaces 11 form a frustum-shaped structure; the first reflective surfaces 11 are used for total internal reflection of parallel light rays that are emitted obliquely from the bottom, and the parallel light rays are emitted from the right side of the first reflective surfaces 11 onto the first reflective surfaces 11, and after total internal reflection by the first reflective surfaces 11, they are emitted from the lower left onto the fourth reflective part 24.
[0039] In this embodiment, the second reflective part 14 includes: four interconnected second reflective surfaces 12, each of which is inclined relative to the vertical direction, and the top area of the second reflective part 14 is larger than the bottom area of the second reflective part 14; the two ends of adjacent second reflective surfaces 12 are interconnected, and the four second reflective surfaces 12 form a frustum-shaped structure; the second reflective part 14 is used for total internal reflection of parallel light rays that are obliquely emitted from the top, and the parallel light rays are emitted from the right side of the second reflective surface 12 onto the second reflective surface 12, and after total internal reflection by the second reflective surface 12, they are emitted from the upper left onto the third reflective part 23.
[0040] In this embodiment, the third reflective part 23 includes: four interconnected third reflective surfaces 21, each of which is inclined relative to the vertical direction, and the top area of the third reflective part 23 is larger than the bottom area of the third reflective part 23; the two ends of adjacent third reflective surfaces 21 are connected to each other, and the four third reflective surfaces 21 form a frustum-shaped structure; the third reflective surface 21 is used for total reflection of inclined light rays to be emitted in parallel, and the inclined light rays after being total reflected by the first reflective surface 11 are emitted on the third reflective surface 21 and then emitted horizontally from the lower left after being total reflected by the third reflective surface 21.
[0041] In this embodiment, the fourth reflective part 24 includes: four interconnected fourth reflective surfaces 22, each of which is inclined relative to the vertical direction, and the top area of the fourth reflective part 24 is larger than the bottom area of the fourth reflective part 24; the two ends of adjacent fourth reflective surfaces 22 are connected to each other, and the four fourth reflective surfaces 22 form a frustum-shaped structure; the fourth reflective surface 22 is used for total reflection of inclined light rays that are emitted horizontally, and the inclined light rays, after being totally reflected by the second reflective surface 12, are reflected onto the fourth reflective surface 22 and emitted horizontally from the upper left after being totally reflected by the fourth reflective surface 22.
[0042] It should be noted that: the first reflecting surface 11 reflects all the light onto the fourth reflecting surface 22. This process is such that adjacent points of the first reflecting surface 11 and the fourth reflecting surface 22 correspond one-to-one, and the first reflecting surface 11 and the fourth reflecting surface 22 have the same shape and size. The first reflecting surface 11 reflects all the light from each point onto the corresponding point on the fourth reflecting surface 22. Similarly, the second reflecting surface 12 reflects all the light from each point onto the corresponding point on the third total reflection surface 21.
[0043] It should be noted that both the first light distribution unit 1 and the second light distribution unit 2 have draft notches, which are not exposed to light and therefore do not affect the optical path of the first light distribution unit 1 and the second light distribution unit 2.
[0044] Example 2:
[0045] like Figure 1As shown, it also includes: a thick-walled component 3, in which the first light distribution unit 1 and the second light distribution unit 2 are both disposed; multiple first light distribution units 1 and second light distribution units 2 are disposed, and the multiple first light distribution units 1 and second light distribution units 2 are arranged in a longitudinal and transverse manner; a concentrator 4 is disposed at one end of the thick-walled component 3 near the first light distribution unit 1, and the concentrator 4 is disposed at the bottom end of the thick-walled component 3. The concentrator 4 is used to converge the light rays and direct them parallel to the first light distribution unit 1; the light source is disposed at the concentrator 4, and the concentrator 4 converges the light rays emitted by the light source into parallel light rays that are directed onto the first reflecting surface 11 and the second reflecting surface 12. After total reflection by the first reflecting surface 11 and the second reflecting surface 12, the light rays are directed onto the third reflecting surface 21 and the fourth reflecting surface 22 respectively. After total reflection by the third reflecting surface 21 and the fourth reflecting surface 22, the light rays are directed horizontally, which improves the uniformity of the light and the lighting effect of the vehicle headlight.
[0046] In summary, within the thick-walled component 3, parallel light rays incident on the first reflecting surface 11 are totally reflected by the first reflecting surface 11 and then obliquely incident on the fourth reflecting surface 22 adjacent to the first reflecting surface 11, and are then totally reflected by the fourth reflecting surface 22 before being emitted horizontally; parallel light rays incident on the second reflecting surface 12 are totally reflected by the second reflecting surface 12 and then obliquely incident on the third reflecting surface 21 adjacent to the second reflecting surface 12, and are then totally reflected by the third reflecting surface 21 before being emitted horizontally, thereby improving the uniformity of light and the lighting effect of the headlights.
[0047] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0048] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0050] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A frustum light distribution structure, characterized in that, include: The first light distribution unit (1) includes: a first reflective part (13) and a second reflective part (14) arranged in a mirror image, wherein the first reflective part (13) and the second reflective part (14) are both truncated pyramidal in shape; The second light distribution unit (2) is arranged parallel to the first light distribution unit (1). The second light distribution unit (2) includes a third reflective part (23) and a fourth reflective part (24) arranged in a mirror image. The third reflective part (23) and the fourth reflective part (24) are both truncated pyramidal in shape. Parallel light rays directed toward the first reflector (13) are totally reflected by the first reflector (13) and then directed toward the fourth reflector (24), and are then totally reflected by the fourth reflector (24) and emitted horizontally. Parallel light rays directed toward the second reflector (14) are totally reflected by the second reflector (14) and then directed toward the third reflector (23), and are then totally reflected by the third reflector (23) and emitted horizontally.
2. The truncated pyramid light distribution structure as described in claim 1, characterized in that, The first reflective part (13) includes: four interconnected first reflective surfaces (11), each of which is inclined relative to the vertical direction, and the top area of the first reflective part (13) is larger than the bottom area of the first reflective part (13); The first reflective surface (11) is used for total internal reflection of parallel light rays that are emitted obliquely from the bottom end.
3. The truncated pyramid light distribution structure as described in claim 2, characterized in that, The second reflective part (14) includes: four interconnected second reflective surfaces (12), each of which is inclined relative to the vertical direction, and the top area of the second reflective part (14) is larger than the bottom area of the second reflective part (14); The second reflector (14) is used for total internal reflection of parallel light rays that are emitted obliquely from the top.
4. The truncated pyramid light distribution structure as described in claim 3, characterized in that, The third reflective part (23) includes: four interconnected third reflective surfaces (21), each of which is inclined relative to the vertical direction, and the top area of the third reflective part (23) is larger than the bottom area of the third reflective part (23); The third reflecting surface (21) is used for total internal reflection of tilted light rays before they are emitted horizontally.
5. The truncated pyramid light distribution structure as described in claim 4, characterized in that, The fourth reflective part (24) includes: four interconnected fourth reflective surfaces (22), each of which is inclined relative to the vertical direction, and the top area of the fourth reflective part (24) is larger than the bottom area of the fourth reflective part (24); The fourth reflecting surface (22) is used for total internal reflection of tilted light rays before they are emitted horizontally.
6. The truncated pyramid light distribution structure as described in claim 5, characterized in that, Parallel light rays incident on the first reflecting surface (11) are totally reflected by the first reflecting surface (11) and then obliquely incident on the fourth reflecting surface (22) adjacent to the first reflecting surface (11), and are then totally reflected by the fourth reflecting surface (22) and then emitted horizontally. Parallel light rays incident on the second reflecting surface (12) are totally reflected by the second reflecting surface (12) and then obliquely incident on the third reflecting surface (21) adjacent to the second reflecting surface (12), and are then totally reflected by the third reflecting surface (21) and then horizontally incident.
7. The truncated pyramid light distribution structure as described in claim 1, characterized in that, Also includes: The thick-walled component (3) has the first light distribution unit (1) and the second light distribution unit (2) both located within it. Multiple first light distribution units (1) and multiple second light distribution units (2) are arranged in a longitudinal and transverse manner.
8. The truncated pyramid light distribution structure as described in claim 7, characterized in that, A concentrator (4) is provided at one end of the thick-walled member (3) near the first light distribution unit (1). The concentrator (4) is located at the bottom end of the thick-walled member (3) and is used to converge light rays to be directed parallel to the first light distribution unit (1).