Uniform thick-wall part structure and vehicle lamp comprising same

Abstract

According to the uniform thick-wall part structure and the car lamp comprising the same, the thick-wall part structure comprises a light guide body, the light guide body comprises a top face, a bottom face, a light emitting face and an inclined face, the length of the top face is larger than that of the bottom face, a plurality of light inlet ends are arranged on the top face at equal height, and each light inlet end comprises a collimation structure and a small light gathering structure. The collimation structures are arranged at the tops of the small light gathering structures, the small light gathering structures are distributed at equal intervals in the width direction of the top face, every two adjacent collimation structures abut against each other, light emitted by the light source enters the thick-wall part structure from the light inlet end, and part of the light enters the light guide body from the top face after being refracted by the collimation structures. After being totally reflected by the slope, the light is emitted from the light-emitting surface; and the other part of light directly irradiates the inclined plane after passing through the small light gathering structure, enters the light guide body after being totally reflected by the inclined plane, and then is emitted from the light emitting surface. The thick-wall part structure and the automobile lamp are high in lighting effect, even in lighting, transparent in visual observation and universal.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to a uniform thick-walled component structure and an automobile lamp comprising the same. Background Art

[0002] With the rapid development of automotive lighting technology and consumers' increasing demand for lighting effects, production costs and efficiency are urgent issues for automotive lighting suppliers. In existing solutions, light is emitted from the LED and passes through a series of devices before being emitted from the light-emitting surface to achieve more uniform lighting. Conventional concentrators produce unevenly collimated light, requiring multiple diffusion steps to achieve uniformity. Furthermore, factors such as shape tilt and space constraints lead to low efficiency and poor lighting uniformity. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, the utility model proposes a uniform thick-walled structure and a headlight containing the same. During the design, the light incident end and the total reflection surface cooperate with each other, and the light is emitted after refraction and multiple total reflections within the system. While having high lighting efficiency, it is evenly lit, visually transparent and universal.

[0005] According to the uniform thick-walled structure of the embodiment of the present invention, the light guide includes a top surface, a bottom surface, a light emitting surface and a bevel. The length dimension of the top surface is greater than the length dimension of the bottom surface. Several light input ends are arranged at the same height on the side of the top surface close to the bevel. The light input end includes a collimating structure and a small light-focusing structure. The collimating structure is arranged on the top of the small light-focusing structure. Several small light-focusing structures are distributed at equal intervals along the width direction of the top surface, and two adjacent collimating structures are abutted against each other. The light emitted by the light source enters the thick-walled structure from the light input end, and a part of the light enters the light guide at the top surface after being refracted by the collimating structure, and is emitted from the light emitting surface after total reflection on the bevel; the other part of the light directly hits the bevel after passing through the small light-focusing structure, enters the light guide after total reflection on the bevel, and then is emitted from the light emitting surface.

[0006] According to an embodiment of the present invention, a vehicle lamp includes a uniform thick-walled structure.

[0007] The beneficial effect of the present invention is that by adding a light input end including a collimating structure and a small focusing structure, and combining it with a light guide to form a new optical structure, the lighting uniformity is improved, the light output efficiency is also improved, the light efficiency is reasonably and efficiently utilized, and the lighting is uniform and beautiful.

[0008] According to an embodiment of the present invention, the lateral projection distance of the collimating structure is set to L1, and the aperture of the small focusing structure is D, then D≤L1 / 3.

[0009] According to an embodiment of the present invention, the lateral projection distance of the inclined surface is set to L2, and the height of the light-emitting surface is set to H, then L2≥H.

[0010] According to an embodiment of the present invention, the inclined surface forms an angle of 40 to 50 degrees with the direction of the incident light.

[0011] According to one embodiment of the present invention, a light distribution pattern is provided on the light emitting surface.

[0012] According to one embodiment of the present invention, a light distribution pattern is provided on the inclined surface.

[0013] According to an embodiment of the present invention, the small light-collecting structure is a cylindrical structure.

[0014] According to an embodiment of the present invention, the collimating structure is a lens, and its longitudinal section is a free-form surface.

[0015] According to an embodiment of the present invention, the power source in the vehicle light is an LED.

[0016] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0020] Figure 2 yes Figure 1 Right view;

[0021] Figure 3 yes Figure 1Left view of;

[0022] Figure 4 yes Figure 1 A top view of

[0023] Figure 5 It is a perspective view of embodiment 1 of the present utility model;

[0024] Figure 6 This is a schematic structural diagram of Example 2 of the present utility model;

[0025] Figure 7 This is a schematic structural diagram of Example 3 of the present utility model;

[0026] Figure 8 This is a schematic structural diagram of Example 4 of the present utility model;

[0027] Figure 9 This is a schematic structural diagram of Example 5 of the present utility model;

[0028] Figure 10 It is a structural diagram of Example 6 of the present utility model.

[0029] The numbers in the figure are: 1, light guide; 11, top surface; 12, bottom surface; 13, light output surface; 14, inclined surface; 2, light input end; 21, collimating structure; 22, small focusing structure; L1, lateral projection distance of the collimating structure; D, aperture of the small focusing structure; L2, lateral projection distance of the inclined surface; H, height dimension of the light output surface; 15, first optical surface; 16, second optical surface; 17, diffusion material. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "one side", "the other side", "both sides", "between", "middle", "upper end", "lower end", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections, and may be directly connected or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] The uniform thick-walled component structure and the vehicle lamp including the same according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The uniform thick-walled structure of the present invention includes a light guide 1, which includes a top surface 11, a bottom surface 12, a light-emitting surface 13 and a slope 14. The length of the top surface 11 is greater than the length of the bottom surface 12. Several light input ends 2 are arranged at the same height on one side of the top surface 11 and close to the slope 14. The light input ends 2 can make the light utilization rate higher.

[0036] The light input end 2 includes a collimating structure 21 and a small focusing structure 22. The collimating structure 21 is arranged on top of the small focusing structure 22. Several small focusing structures 22 are evenly spaced along the width direction of the top surface 11, and two adjacent collimating structures 21 are abutted. Specifically, the surfaces of two adjacent collimating structures 21 are abutted.

[0037] Assuming the lateral projection distance of the collimating structure 21 to be L1 and the aperture of the small focusing structure 22 to be D, then D≤L1 / 3. The advantages of this design are: on the one hand, it ensures that the light with the strongest energy enters the light-guiding part through the focusing structure, which is efficient; on the other hand, it is one-piece injection molded to save costs.

[0038] Assuming the lateral projection distance of the inclined surface 14 is L2 and the height of the light-emitting surface 13 is H, then L2 ≥ H. This design allows the light outlet to be evenly illuminated.

[0039] The inclined surface 14 forms an angle of 40 to 50 degrees with the incident light direction, and its purpose is to fully reflect the light. Figure 1 Light path diagram.

[0040] Light-emitting surface 13 is provided with a light-distributing pattern to achieve a more uniform lighting effect. Of course, leather grain or other patterns can be added to light-emitting surface 13 according to actual needs. Leather grain is a microstructure formed on a smooth surface by the action of lasers or chemicals. The function of leather grain is to disperse light in all directions, achieving a more uniform lighting effect.

[0041] According to actual needs, a light distribution pattern can be provided on the inclined surface 14 to make the lighting more uniform.

[0042] The small focusing structure 22 is a cylindrical structure. The size relationship between the height of the small focusing structure 22 and the diameter D of the small focusing structure 22 will be designed according to actual conditions. The reason why the small focusing structure 22 is designed as a cylindrical structure is that the advantages of this design are good focusing and collimation effects, uniformity, high efficiency and good processing.

[0043] The collimating structure 21 is a lens, the longitudinal section of which is a free-form surface, and the upper surface of the collimating structure 21 is a plane. Of course, the collimating structure 21 is not limited to this shape, and may also be in other forms.

[0044] The propagation path of light is as follows: the light emitted by the light source enters the thick-walled structure from the light input end 2, part of the light enters the light guide 1 at the top surface 11 after being refracted by the collimating structure 21, and is emitted from the light output surface 13 after total reflection by the inclined surface 14; the other part of the light passes through the small focusing structure 22 and directly hits the inclined surface 14, and enters the light guide 1 after total reflection by the inclined surface 14, and then is emitted from the light output surface 13.

[0045] A vehicle lamp includes a uniform thick-walled structure. The power source in the vehicle lamp is an LED. The light energy at a small angle perpendicular to the LED light-emitting surface is the strongest. This part of the light directly enters the thick-walled structure through a small focusing structure 22. There is no other medium in between, that is, the loss is minimized, so the energy of this part of the light is maximized.

[0046] The LED light source is not limited to color and can be red, white, yellow, etc.

[0047] The light guide 1 and the light input end 2 are an integrally formed structure, that is, the light guide 1 and the light input end 2 are an integral uniform thick-walled structure. This integral structural design not only reduces a set of molds, but also reduces production costs and simplifies the assembly process.

[0048] Uniform thick-walled components can be made of transparent materials such as PMMA (polymethyl methacrylate) or PC (polycarbonate). PMMA, also known as acrylic, acrylic, or organic glass, offers advantages such as high transparency, low price, and ease of machining, making it a commonly used glass alternative. PC, also known as polycarbonate, offers excellent mechanical properties, heat aging resistance, insulation, and moldability, making it widely used in optical lighting applications.

[0049] The uniform thick-walled component structure of the present invention and the vehicle lamp containing the same, by adding a light input end including a collimating structure and a small focusing structure, and combining it with a light guide, are combined into a new optical structure, thereby improving the lighting uniformity and the light output efficiency, reasonably and efficiently utilizing the light efficiency, and lighting is uniform and beautiful.

[0050] Example 2

[0051] Compared with Example 1, the difference of Example 2 is: Figure 6 The light guide 1 further includes a first optical surface 15 and a second optical surface 16. Light distribution patterns and other structures can be designed on the surfaces of the first optical surface 15 and the second optical surface 16 according to actual needs. Air is provided between the first optical surface 15 and the second optical surface 16. The light distribution patterns are designed on the surfaces of the first optical surface 15 and the second optical surface 16 to increase diffusion and achieve more uniform lighting.

[0052] The propagation path of light is as follows: the light emitted by the light source enters the thick-walled structure from the light incident end 2, a part of the light enters the light guide 1 at the top surface 11 after being refracted by the collimating structure 21, enters the first optical surface 15 and the second optical surface 16 in sequence after being totally reflected by the inclined surface 14, and then exits from the light exiting surface 13; the other part of the light directly hits the inclined surface 14 after passing through the small focusing structure 22, enters the first optical surface 15 and the second optical surface 16 in sequence after being totally reflected by the inclined surface 14, and then exits from the light exiting surface 13.

[0053] Example 3

[0054] Compared with Example 1, the difference of Example 3 is: Figure 7 The light guide 1 includes a diffusion material 17, the purpose of which is to increase the lighting uniformity. The proportion, thickness and number of groups of the diffusion material 17 can be adjusted according to actual conditions.

[0055] The propagation path of light is as follows: the light emitted by the light source enters the thick-walled structure from the light input end 2, part of the light is refracted by the collimating structure 21 and enters the light guide 1 at the top surface 11, enters the light guide 1 after total reflection by the inclined surface 14, is diffused by the diffusion material 17, and then exits from the light output surface 13; the other part of the light passes through the small focusing structure 22 and directly hits the inclined surface 14, enters the light guide 1 after total reflection by the inclined surface 14, is diffused by the diffusion material 17, and then exits from the light output surface 13.

[0056] Example 4

[0057] Compared with Example 1, the difference of Example 4 is: Figure 8 The light input end 2 only includes the collimating structure 21 and does not include the small focusing structure 22.

[0058] The propagation path of light is: the light emitted by the light source enters the thick-walled structure from the light input end 2, enters the light guide 1 at the top surface 11 after refraction by the collimating structure 21, enters the light guide 1 after total reflection by the inclined surface 14, and then exits from the light output surface 13.

[0059] Example 5

[0060] Compared with Example 1, the difference of Example 5 is: Figure 9 The light input end 2 only includes the collimating structure 21 and does not include the small focusing structure 22. The upper surface of the collimating structure is convex. The advantage of this design is that it has an additional degree of freedom and is convenient for adjusting the uniformity of light distribution.

[0061] The light propagation path is as follows: the light emitted by the light source enters the thick-walled structure from the light incident end 2 , enters the light guide 1 at the top surface 11 after being refracted by the collimating structure 21 , and is emitted from the light emitting surface 13 after being totally reflected by the inclined surface 14 .

[0062] Example 6

[0063] Compared with Example 1, the difference of Example 6 is: Figure 10 The light input end 2 includes only the collimating structure 21 and does not include the small focusing structure 22. The light guide 1 also includes a first optical surface 15 and a second optical surface 16. According to actual needs, the surfaces of the first optical surface 15 and the second optical surface 16 can be designed with light distribution patterns and other structures, and the space between the first optical surface 15 and the second optical surface 16 is air.

[0064] The propagation path of light is as follows: the light emitted by the light source enters the thick-walled structure from the light input end 2, enters the light guide 1 at the top surface 11 after being refracted by the collimating structure 21, enters the first optical surface 15 and the second optical surface 16 in turn after being totally reflected by the inclined surface 14, and then exits from the light output surface 13.

[0065] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A uniform thick-walled structure characterized by: The invention comprises a light guide (1), wherein the light guide (1) comprises a top surface (11), a bottom surface (12), a light emitting surface (13) and an inclined surface (14), wherein the length dimension of the top surface (11) is greater than the length dimension of the bottom surface (12), and a plurality of light input ends (2) are provided at the same height on one side of the top surface (11) and close to the inclined surface (14), wherein the light input ends (2) comprise a collimating structure (21) and a small light focusing structure (22), wherein the collimating structure (21) is provided on the top of the small light focusing structure (22), and the plurality of small light focusing structures (2 2) The light is evenly spaced along the width direction of the top surface (11), and two adjacent collimating structures (21) are in contact with each other. The light emitted by the light source enters the thick-walled structure from the light input end (2). A portion of the light enters the light guide (1) at the top surface (11) after being refracted by the collimating structure (21), and is emitted from the light output surface (13) after being totally reflected by the inclined surface (14); the other portion of the light directly hits the inclined surface (14) after passing through the small focusing structure (22), enters the light guide (1) after being totally reflected by the inclined surface (14), and is then emitted from the light output surface (13).

2. The uniform thick-walled structure according to claim 1, characterized in that: Assuming the lateral projection distance of the collimating structure (21) to be L1 and the aperture of the small focusing structure (22) to be D, D≤L1 / 3.

3. The uniform thick-walled structure according to claim 2, characterized in that: Assuming the lateral projection distance of the inclined surface (14) to be L2 and the height dimension of the light-emitting surface (13) to be H, then L2≥H.

4. The uniform thick-walled structure according to claim 1, characterized in that: The inclined surface (14) forms an angle of 40 to 50 degrees with the incident light direction.

5. The uniform thick-walled structure according to claim 1, characterized in that: The light-emitting surface (13) is provided with a light distribution pattern.

6. The uniform thick-walled structure according to claim 1, characterized in that: The inclined surface (14) is provided with a light distribution pattern.

7. The uniform thick-walled structure according to claim 1, characterized in that: The small light-collecting structure (22) is a cylindrical structure.

8. The uniform thick-walled structure according to claim 1, characterized in that: The collimating structure (21) is a lens, and its longitudinal section is a free-form surface.

9. A vehicle lamp, characterized by: The invention comprises the uniform thick-walled part structure described in any one of claims 1-8.

10. The vehicle lamp according to claim 9, wherein: The power source in the vehicle light is LED.

Images