Refractive light distribution structure and its thick-walled components
By employing a refractive light distribution structure and thick-walled components in automotive headlights, and utilizing a combination of multiple refractions and a concentrator, the problem of uneven light propagation is solved, achieving uniform light distribution and improved headlight brightness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-03
AI Technical Summary
Uneven light propagation in car headlights results in bright spots and dark areas, and adding light distribution patterns increases the difficulty of light distribution.
A refractive light distribution structure is adopted, which achieves uniform light distribution through multiple refractions by the first and second refractive parts, combined with thick-walled components and a concentrator.
It improves the uniformity of light emission, enhances the lighting effect of the headlights, reduces the difficulty of light distribution, and reduces the amount of materials used.
Smart Images
Figure CN224454392U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive lighting technology, specifically relating to a refractive light distribution structure and its thick-walled component. Background Technology
[0002] In automotive headlights, the significant difference in light intensity between the center and edge of the light source leads to uneven energy distribution during propagation, resulting in bright spots and dark areas. Addressing this requires adding numerous light-distribution patterns and other structures to enhance light diffusion and achieve a more uniform energy distribution, thus increasing the complexity of light distribution. Utility Model Content
[0003] The purpose of this invention is to provide a refractive light distribution structure and its thick-walled component to solve the technical problem of uneven light propagation, resulting in bright spots and dark areas on the light-emitting surface, while adding a large number of light distribution patterns increases the difficulty of light distribution. The invention achieves the goal of reducing bright spots and dark areas by refracting light multiple times before it is emitted, resulting in uniform light distribution, and the structure is simple and does not require adding a large number of light distribution patterns, thus reducing the difficulty of light distribution.
[0004] To solve the above-mentioned technical problems, this utility model provides a refractive light distribution structure and its thick-walled component, including:
[0005] The first refractive part includes a first refractive surface A and a first refractive surface B symmetrically arranged, and the end of the first refractive surface A is connected to the end of the first refractive surface B.
[0006] The second refractive part is disposed opposite to the first refractive part; the second refractive part includes a second refractive surface A and a second refractive surface B symmetrically disposed, and the end of the second refractive surface A is connected to the end of the second refractive surface B.
[0007] In this process, horizontal light rays are refracted by the first refractive surface A and then strike the second refractive surface B. After being refracted by the second refractive surface B, the light rays are emitted horizontally.
[0008] Horizontal light rays are refracted by the first refractive surface B and then strike the second refractive surface A. After being refracted by the second refractive surface A, the light rays are emitted horizontally.
[0009] Furthermore, both the first refracting surface A and the first refracting surface B are inclined, and the connection between the first refracting surface A and the first refracting surface B extends in a direction close to the second refracting part.
[0010] The bottom end of the first refractive surface A is connected to the top end of the first refractive surface B, and the first refractive surface A and the first refractive surface B are symmetrical about the horizontal plane passing through the connection point of the first refractive surface A and the first refractive surface B.
[0011] Furthermore, both the second refracting surface A and the second refracting surface B are inclined, and the connection between the second refracting surface A and the second refracting surface B extends in a direction close to the first refracting part;
[0012] The bottom end of the second refractive surface A is connected to the top end of the second refractive surface B. The second refractive surface A and the second refractive surface B are symmetrical about a horizontal plane passing through the connection point of the first refractive surface A and the first refractive surface B.
[0013] Furthermore, the vertical projection length of the first refracting surface A, the first refracting surface B, the second refracting surface A, and the second refracting surface B is H;
[0014] The distance between the connection point of the first refracting surface A and the first refracting surface B and the connection point of the second refracting surface A and the second refracting surface B is L;
[0015] Wherein, the incident angle α1 between the first refracting surface A and the first refracting surface B and the horizontal light ray is α1 = arctan(H / L) / (n-1), and the refraction angle β1 between the first refracting surface A and the first refracting surface B and the refracted light ray is β1 = nα1;
[0016] The incident angles α2 and β1 between the second refracting surface A and the second refracting surface B and the horizontal light ray are respectively, and the refraction angles β2 and α2 / n between the second refracting surface A and the second refracting surface B and the refracted light ray are respectively.
[0017] The thick-walled component includes the aforementioned refractive light distribution structure and the thick-walled component body; both the first refractive part and the second refractive part are disposed on the thick-walled component body, and a concentrator is also disposed on the end of the thick-walled component body near the first refractive part.
[0018] Furthermore, the thick-walled component body includes a first thick-walled component and a second thick-walled component arranged in parallel. The first thick-walled component is provided with a first refractive part at its end near the second thick-walled component, and the second thick-walled component is provided with a second refractive part at its end near the first thick-walled component.
[0019] Furthermore, the thick-walled component body has multiple rows of through holes, with adjacent rows of through holes arranged alternately;
[0020] The two ends of the through hole are respectively provided with the first refractive part and the second refractive part.
[0021] Furthermore, the thick-walled component body has multiple rows of through holes, with adjacent rows of through holes staggered and arranged opposite to each other;
[0022] The two ends of the through hole are respectively provided with the first refractive part and the second refractive part, and the lengths of the first refractive part and the second refractive part are not equal.
[0023] Furthermore, the second refractive part is provided with stripes or patterns.
[0024] The beneficial effects of this utility model are:
[0025] 1. By setting a first refractive part and a second refractive part, horizontal light rays are refracted above the first refractive part and then enter the lower part of the second refractive part, and are then refracted horizontally after exiting the headlights. Similarly, horizontal light rays are refracted below the first refractive part and then enter the upper part of the second refractive part, and are then refracted horizontally after exiting the headlights. The light rays are refracted multiple times before exiting the headlights, which improves the uniformity of the light rays and enhances the lighting effect of the headlights.
[0026] 2. This utility model, by setting a first thick-walled member and a second thick-walled member, with the first refractive part and the second refractive part respectively disposed on the first thick-walled member and the second thick-walled member, the first thick-walled member directs light from the first refractive part onto the second refractive part through a concentrator and then emits it; the light is emitted after multiple refractions, which improves the uniformity of light emission and improves the lighting effect of the vehicle headlight.
[0027] 3. This utility model features a thick-walled body with a first and a second refractive part. The first and second refractive parts are hollowed out and the through holes are staggered, which makes the light emission more uniform and avoids some areas of the light-emitting surface being bright while others are dark, thus improving the lighting effect. The thick-walled body is easy to demold and reduces the amount of material used, thereby reducing costs.
[0028] 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
[0029] 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.
[0030] Figure 1 This is a schematic diagram of the optical path structure of the refractive light distribution structure according to Embodiment 1 of this utility model;
[0031] Figure 2 yes Figure 1 The main view;
[0032] Figure 3 This is a schematic diagram of the structure of the thick-walled component body according to Embodiment 3 of this utility model;
[0033] Figure 4 yes Figure 3 Top view;
[0034] Figure 5 This is a schematic diagram of the optical path structure of the thick-walled component body according to Embodiment 3 of this utility model;
[0035] Figure 6 This is a schematic diagram of the structure of the thick-walled component body according to Embodiment 4 of this utility model;
[0036] Figure 7 This is a structural schematic diagram of the thick-walled component body according to Embodiment 5 of this utility model.
[0037] In the picture:
[0038] 1. First refractive part; 11. First refractive surface A; 12. Second refractive surface B; 2. Second refractive part; 21. Second refractive surface A; 22. Second refractive surface B; 3. Thick-walled component body; 31. First thick-walled component; 32. Second thick-walled component; 33. Through hole; 4. Concentrator. Detailed Implementation
[0039] 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 scope of protection of this utility model.
[0040] Example 1:
[0041] like Figures 1 to 2 As shown, the refractive light distribution structure includes: a first refractive part 1 and a second refractive part 2, the second refractive part 2 being arranged opposite to the first refractive part 1; horizontal light rays are emitted horizontally after being refracted multiple times by the first refractive part 1 and the second refractive part 2, and the light rays are emitted uniformly after multiple refractions, thus improving the lighting effect.
[0042] The first refractive part 1 includes a first refractive surface A11 and a first refractive surface B12 that are symmetrically arranged. The first refractive surface A11 and the first refractive surface B12 are symmetrical about the horizontal plane passing through the connection point of the first refractive surface A11 and the first refractive surface B12.
[0043] It should be noted that the end of the first refractive surface A11 is connected to the end of the first refractive surface B12, the bottom end of the first refractive surface A11 is connected to the top end of the first refractive surface B12, both the first refractive surface A11 and the first refractive surface B12 are inclined, one end of the first refractive surface A11 is connected to one end of the first refractive surface B12, and the other end of the first refractive surface A11 and the other end of the first refractive surface B12 extend upward and downward respectively; the connection between the first refractive surface A11 and the first refractive surface B12 extends in the direction close to the second refractive part 2.
[0044] The second refractive part 2 includes a second refractive surface A21 and a second refractive surface B22 that are symmetrically arranged. The second refractive surface A21 and the second refractive surface B22 are symmetrical about a horizontal plane passing through the connection point of the second refractive surface A21 and the second refractive surface B22.
[0045] It should be noted that the end of the second refractive surface A21 is connected to the end of the second refractive surface B22, the bottom end of the second refractive surface A21 is connected to the top end of the second refractive surface B22, both the second refractive surface A21 and the second refractive surface B22 are inclined, one end of the second refractive surface A21 is connected to one end of the second refractive surface B22, and the other end of the second refractive surface A21 and the other end of the second refractive surface B22 extend upward and downward respectively; the connection between the second refractive surface A21 and the second refractive surface B22 extends in the direction close to the first refractive part 1.
[0046] It should be noted that the vertical projection length of the first refractive surface A11, the first refractive surface B12, the second refractive surface A21, and the second refractive surface B22 is H; the distance between the connection point of the first refractive surface A11 and the first refractive surface B12 and the connection point of the second refractive surface A21 and the second refractive surface B22 is L; wherein, the incident angle α1 between the first refractive surface A11 and the first refractive surface B12 and the horizontal light ray is α1 = arctan(H / L) / (n-1), and the refraction angle β1 between the first refractive surface A11 and the first refractive surface B12 and the refracted light ray is β1 = nα; the incident angle α2 between the second refractive surface A21 and the second refractive surface B22 and the horizontal light ray is β2 = α2 / n; n is the refractive index of the material of the first refractive surface A11 and the second refractive surface B12, and H and L can be changed according to actual needs.
[0047] When the above-mentioned incident angle and refraction angle are satisfied, the horizontal light rays from the side of the first refraction part 1 away from the second refraction part 2 are refracted by the first refraction surface A11 and then point-to-point onto the second refraction surface B22. The light rays are then refracted by the second refraction surface B22 and then emitted horizontally. The light rays at the top of the first refraction surface A11 are emitted onto the top of the second refraction surface B22, and the light rays at the bottom of the first refraction surface A11 are emitted onto the bottom of the second refraction surface B21.
[0048] Similarly, horizontal light rays from the side of the first refraction part 1 away from the second refraction part 2 are refracted by the first refraction surface B12 and then point-to-point onto the second refraction surface A21. After being refracted by the second refraction surface A21, the light rays are emitted horizontally. The light rays at the top of the first refraction surface B12 are emitted onto the top of the second refraction surface A21, and the light rays at the bottom of the first refraction surface B12 are emitted onto the bottom of the second refraction surface A21.
[0049] Example 2:
[0050] Based on Embodiment 1, the thick-walled component includes a refractive light distribution structure as in Embodiment 1 and a thick-walled component body 3; the first refractive part 1 and the second refractive part 2 are both disposed on the thick-walled component body 3, and a concentrator 4 is also disposed on the end of the thick-walled component body 3 near the first refractive part 1. The concentrator 4 focuses the light into horizontal light and then emits it horizontally through the first refractive part 1 and the second refractive part 2 in sequence, thereby improving the uniformity of the light and thus improving the lighting effect.
[0051] Example 3:
[0052] like Figure 3 , Figure 4 and Figure 5 As shown, based on Embodiment 2, the thick-walled body 3 includes a first thick-walled member 31 and a second thick-walled member 32 arranged in parallel. A first refractive part 1 is provided on the end of the first thick-walled member 31 near the end of the second thick-walled member 32, and a second refractive part 2 is provided on the end of the second thick-walled member 32 near the end of the first thick-walled member 31. The first thick-walled member 31 and the second thick-walled member 32 are aligned, so that the light on the first refractive part 1 shines on the second refractive part 2. The light is refracted multiple times on the first thick-walled member 31 and the second thick-walled member 32, making the light more uniform and the emission lighting effect better. The second refractive part 2 is provided with stripes or patterns, which makes the light emission from the second refractive part 2 more uniform.
[0053] Example 4:
[0054] like Figure 6 As shown, based on Embodiment 2, the thick-walled body 3 has multiple rows of through holes 33, with adjacent rows of through holes 33 staggered. A first refractive part 1 and a second refractive part 2 are respectively provided at both ends of the through holes 33. A concentrator 4 is provided near the first refractive part 1 of the thick-walled body 3. The concentrator 4 focuses the light into parallel light rays and then emits them horizontally through the first refractive part 1 and the second refractive part 2 in sequence. The concentrator 4 shoots the light into the adjacent rows of through holes 33. The staggered arrangement of the adjacent rows of through holes 33 makes the light emission more uniform and avoids the light emission from being alternating between bright and dark on the light-emitting surface due to the distance between the through holes 33. Stripes or patterns can be provided on the first refractive part 1 and the second refractive part 2, which makes the light emission from the first refractive part 1 and the second refractive part 2 more uniform.
[0055] Example 5:
[0056] like Figure 7 As shown, the difference from Embodiment 4 is that the thick-walled body 3 has multiple rows of through holes 33, and two adjacent rows of through holes 33 are staggered and arranged opposite each other; a first refractive part 1 and a second refractive part 2 are respectively provided at both ends of the through holes 33, and the lengths of the first refractive part 1 and the second refractive part 2 are not equal; in two adjacent rows of through holes 33, the length of the first refractive part 1 of one row of through holes 33 is greater than the length of the second refractive part 2, and the length of the first refractive part 1 of the other row of through holes 33 is less than the length of the second refractive part 2.
[0057] The light concentrator 4 focuses the light into parallel rays and then emits them horizontally through the first refractive part 1 and the second refractive part 2 in sequence. The light concentrator 4 shoots the light into two adjacent rows of through holes 33. The two adjacent rows of through holes 33 are staggered to make the light emission more uniform and avoid the light emission surface from being bright and dark due to the distance between the through holes 33. The second refractive part 2 is provided with stripes or patterns, which makes the light emission on the second refractive part 2 more uniform.
[0058] Compared to the thick-walled body 3 in Embodiment 4, the sidewall of the thick-walled body 3 in this embodiment is inclined, so the angle at which light is refracted from the sidewall into the thick-walled body 3 changes. By adjusting the inclination of the sidewall, the light from the bright part of the light-emitting surface can be supplemented to the dark part, thereby reducing the difference between light and dark and making the visual appearance more uniform.
[0059] In summary, the thick-walled component 3 uses a concentrator 4 or a lens to focus the light emitted by the LED into parallel rays. These parallel rays are refracted multiple times by the first refractive part 1 and the second refractive part 2 before being emitted horizontally. The horizontal rays are refracted point-to-point by the first refractive surface A11 and then strike the second refractive surface B22. After being refracted by the second refractive surface B22, the rays are emitted horizontally. The horizontal rays from the side of the first refractive part 1 away from the second refractive part 2 are refracted point-to-point by the first refractive surface B12 and then strike the second refractive surface A21. After being refracted by the second refractive surface A21, the rays are emitted horizontally. The multiple refractions of the light, with the upper rays emitting from the lower and the lower rays emitting from the upper, improve the uniformity of the light-emitting surface, thereby enhancing the lighting effect.
[0060] 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.
[0061] 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.
[0062] 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.
[0063] 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 refractive light distribution structure, characterized by, include: The first refractive part (1) includes a first refractive surface A (11) and a first refractive surface B (12) arranged symmetrically, and the end of the first refractive surface A (11) is connected to the end of the first refractive surface B (12). The second refractive part (2) is disposed opposite to the first refractive part (1); the second refractive part (2) includes a second refractive surface A (21) and a second refractive surface B (22) disposed symmetrically, and the end of the second refractive surface A (21) is connected to the end of the second refractive surface B (22); In this case, the horizontal light rays are refracted by the first refractive surface A (11) and then strike the second refractive surface B (22), and the light rays are refracted by the second refractive surface B (22) and then emitted horizontally; Horizontal light rays are refracted by the first refractive surface B (12) and then strike the second refractive surface A (21). After being refracted by the second refractive surface A (21), the light rays are emitted horizontally.
2. The refractive light distribution structure according to claim 1, wherein The first refracting surface A (11) and the first refracting surface B (12) are both inclined, and the connection between the first refracting surface A (11) and the first refracting surface B (12) extends in a direction close to the second refracting part (2); The bottom end of the first refractive surface A (11) is connected to the top end of the first refractive surface B (12). The first refractive surface A (11) and the first refractive surface B (12) are symmetrical about the horizontal plane passing through the connection point of the first refractive surface A (11) and the first refractive surface B (12).
3. The refractive light distribution structure according to claim 1, wherein The second refracting surface A (21) and the second refracting surface B (22) are both inclined, and the connection between the second refracting surface A (21) and the second refracting surface B (22) extends in a direction close to the first refracting part (1); The bottom end of the second refractive surface A (21) is connected to the top end of the second refractive surface B (22). The second refractive surface A (21) and the second refractive surface B (22) are symmetrical about the horizontal plane passing through the connection point of the first refractive surface A (11) and the first refractive surface B (12).
4. The refractive light distribution structure according to claim 1, wherein The vertical projection length of the first refracting surface A (11), the first refracting surface B (12), the second refracting surface A (21), and the second refracting surface B (22) is H; The distance between the connection point of the first refracting surface A (11) and the first refracting surface B (12) and the connection point of the second refracting surface A (21) and the second refracting surface B (22) is L; Wherein, the incident angle α1 between the first refracting surface A (11) and the first refracting surface B (12) and the horizontal light ray is α1 = arctan(H / L) / (n-1), and the refraction angle β1 between the first refracting surface A (11) and the first refracting surface B (12) and the refracted light ray is β1 = nα1; The incident angles α2 and β1 between the second refracting surface A (21) and the second refracting surface B (22) and the horizontal light ray are respectively, and the refraction angles β2 and α2 / n between the second refracting surface A (21) and the second refracting surface B (22) and the refracted light ray are respectively.
5. Thick-walled component, characterized in that include: The refractive light distribution structure and the thick-walled body (3) as described in any one of claims 1 to 4; the first refractive part (1) and the second refractive part (2) are both provided on the thick-walled body (3), and a concentrator (4) is also provided on the end of the thick-walled body (3) near the first refractive part (1).
6. The thick-walled article of claim 5, wherein The thick-walled body (3) includes a first thick-walled member (31) and a second thick-walled member (32) arranged in parallel. The first thick-walled member (31) is provided with a first refractive part (1) at the end near the second thick-walled member (32), and the second thick-walled member (32) is provided with a second refractive part (2) at the end near the first thick-walled member (31).
7. The thick-walled article of claim 5, wherein The thick-walled body (3) has multiple rows of through holes (33), and two adjacent rows of through holes (33) are staggered. The two ends of the through hole (33) are respectively provided with the first refractive part (1) and the second refractive part (2).
8. The thick-walled article of claim 5, wherein The thick-walled body (3) has multiple rows of through holes (33), with adjacent rows of through holes (33) staggered and arranged opposite to each other; The two ends of the through hole (33) are respectively provided with the first refractive part (1) and the second refractive part (2), and the lengths of the first refractive part (1) and the second refractive part (2) are not equal.
9. The thick-walled component as described in claim 5, characterized in that, The first refractive part (1) and the second refractive part (2) are provided with stripes or patterns.