Light-emitting end adjusting structure and vehicle lamp comprising same
By designing a light end adjustment structure in the car light, adjusting the size of the light exit end using the focal length and height relationship of the lens, and improving the light exit efficiency through the overlap of the focus, the problem of difficulty in taking into account the aesthetics, efficiency and power consumption of the existing car light technology, and achieving flexible adjustment of the light exit height and efficient and uniform light exit effect.
Patent Information
- Application Number
- CN202421931618.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing car light technology is difficult to minimize or maximize the height of the light outlet while taking into account aesthetics, efficiency, power consumption, heat and cost, especially in terms of lighting uniformity and dynamic flow effect.
By designing a light exit adjustment structure, the size of the light exit end is adjusted using the different focal lengths and height relationships of the first lens and the second lens, and by setting the first focus and the second focus overlap, the light exit efficiency and the system power consumption are maximized.
It realizes flexible adjustment of the light outlet, which can maintain high efficiency and uniformity in extremely small and huge situations, reduce system power consumption, and significantly improves aesthetics and dynamic flow effects.
Smart Images
Figure CN222963775U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle lamps, and particularly relates to a light-emitting end adjusting structure and a vehicle lamp including the same. Background Art
[0002] With the rapid development of automotive headlamp technology, users' pursuit of lamp shapes has gradually become diversified, and aesthetics is also an important consideration factor. Therefore, a simple appearance is also the development direction of each vehicle manufacturer. The minimalist light-emitting end and uniform lighting are currently the difficulties to be overcome in the automotive technology field. Currently, most mainstream solutions are in the form of thick-walled parts, reflectors, or light guides.
[0003] In traditional projects, the light-emitting end is comprehensively affected by factors such as styling space, efficiency, power consumption, heat, and cost. When the height of the light-emitting end is relatively large or small, it is impossible to fully consider all influencing factors and achieve high light-emitting efficiency and high uniformity at the same time. The height of the light-emitting end in traditional projects is generally about 5 - 12 mm. Although the upper and lower light-emitting ends of the light guide solution are small, the narrowest can reach about 4 mm, but the lighting effect is different from that of thick-walled parts and other solutions, and the dynamic flowing water effect cannot be achieved. Due to the limitation of light efficiency in traditional solutions, the height of the light-emitting end cannot be made extremely small, generally at least about 5 mm. Also, due to the problems of lighting uniformity and power consumption cost, the height of the light-emitting end cannot be made extremely large. However, with the diverse demands of users for the aesthetics of automotive headlamps, the height of the light-emitting end is one of the problems that urgently need to be solved by those skilled in the art. Summary of the Utility Model
[0004] In order to solve the above technical problems, the utility model provides a light-emitting end adjusting structure and a vehicle lamp including the same, with a minimalist light-emitting end, adjustable light-emitting end, high system light efficiency, uniform lighting, and the ability to achieve dynamic flowing water.
[0005] The utility model provides a light-emitting end adjusting structure, including:
[0006] A first lens, the light-emitting end of the first lens having a first focal point;
[0007] A second lens, the light-incident end of the second lens having a second focal point, the first lens and the second lens having different focal lengths;
[0008] When light rays are emitted from the light-emitting end of the first lens and converge at the first focal point, they enter the light-incident end of the second lens through the first focal point and are emitted from the light-emitting end of the second lens.
[0009] The light-emitting end adjusting structure of the utility model adjusts the size of the light-emitting end by adjusting the different focal lengths of the first lens and the second lens and adjusting the height relationship between the first lens and the second lens according to the relative relationship between the focal lengths of the first lens and the second lens.
[0010] Further, the second focus coincides with the first focus, which can maximize the light output efficiency and reduce the system power consumption.
[0011] Further, to increase the light output end, the focal length of the first lens is less than that of the second lens.
[0012] Further, to decrease the light output end, the focal length of the first lens is greater than that of the second lens.
[0013] Further, the light output end of the first lens is an arc surface that arches from its light incident end side towards its light output end side.
[0014] Further, the light incident end of the second lens is an arc surface that arches from its light output end side towards its light incident end side.
[0015] Further, for the light output end adjusting structure described above, the first lens is a focusing lens.
[0016] Further, the second lens is a collimating lens.
[0017] Further, the light output end adjusting structure further includes:
[0018] A light condensing part, with a light source arranged on one side of the light condensing part;
[0019] A total reflection part, which is arranged on the other side of the light condensing part. The reflection part is provided with a total reflection surface. The light emitted by the light source is incident on the total reflection surface through the light condensing part, and after being totally reflected by the total reflection surface, it is emitted from the first lens.
[0020] Further, the light output end of the second lens is provided with patterns.
[0021] The present utility model also provides a vehicle lamp, including the light output end adjusting structure as described above.
[0022] The beneficial effects of the present utility model are:
[0023] For a light output end adjusting structure of the present utility model, after the light is refracted from the light output end of the first lens, it enters the air, is refracted again through the light incident end of the second lens, and finally is emitted from the light output end of the second lens. Since the focal lengths of the first lens and the second lens are different, the size of the light output end can be adjusted according to the relative relationship between the focal length of the first lens and the focal length of the second lens. Moreover, by setting the first focus to coincide with the second focus in the present utility model, the light output efficiency can be maximized and the system power consumption can be reduced.
[0024] For the vehicle lamp of the present utility model, since it has a light output end adjusting structure, it simultaneously has the advantages of this light output end adjusting structure.
[0025] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following provides preferred embodiments in conjunction with the accompanying drawings and detailed descriptions are as follows. Description of the Drawings
[0026] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0027] Figure 1 Structural schematic diagram of the first embodiment of the present utility model;
[0028] Figure 2 Structural schematic diagram of the second embodiment of the present utility model;
[0029] Figure 3 Structural schematic diagram of the third embodiment of the present utility model;
[0030] Figure 4 Structural schematic diagram of the third embodiment of the present utility model.
[0031] In the figure:
[0032] 1. First lens; 11. First focal point; 2. Second lens; 3. Light condensing part; 4. Total reflection part. Specific Embodiments
[0033] To make the objects, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the present utility model in conjunction with the drawings. Obviously, the described embodiments are some, rather than all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0034] As Figure 1 shown, it is the first embodiment of the present utility model. The present utility model provides a light output end adjustment structure, including:
[0035] A first lens 1 and a second lens 2. The light output end of the first lens 1 has a first focal point 11, and the light input end of the second lens 2 has a second focal point. The focal lengths of the first lens 1 and the second lens 2 are different;
[0036] When light rays are emitted from the light output end of the first lens 1 and converge at the first focal point 11, they enter the light input end of the second lens 2 through the first focal point 11 and are emitted from the light output end of the second lens 2.
[0037] The light-emitting end adjusting structure of the present utility model adjusts the different focal lengths of the first lens 1 and the second lens 2, and according to the relative relationship between the focal lengths of the first lens 1 and the second lens 2, adjusts the height relationship between the first lens 1 and the second lens 2, and finally realizes the adjustment of the size of the light-emitting end.
[0038] Moreover, by setting the first focal point 11 to coincide with the second focal point, the present utility model can maximize the light-emitting efficiency and reduce the system power consumption.
[0039] The focal length of the first lens 1 is less than that of the second lens 2, and the height of the first lens 1 is less than that of the second lens 2, realizing the enlargement of the light-emitting end. When there is a large space in the front part of the vehicle lamp, this scheme can be applied, with uniform light emission and high light efficiency.
[0040] The light-emitting end of the first lens 1 is an arc surface that arches from its light-incident end side towards its light-emitting end side, and the light-incident end of the second lens 2 is an arc surface that arches from its light-emitting end side towards its light-incident end side. The first lens 1 and the second lens 2 can be made of transparent materials such as PMMA or PC.
[0041] For the convenience of implementation, the first lens 1 is a focusing lens, which refracts the light inside the first lens 1 to the first focal point 11.
[0042] For the convenience of implementation, the second lens 2 is a collimating lens, which collimates and emits the light incident from the first focal point 11.
[0043] In order to increase the uniformity of light emission, the light-emitting end of the second lens 2 is provided with patterns.
[0044] As Figure 2 shown, it is the second embodiment of the present utility model. The difference from the first embodiment is that the first lens 1 selects the upper half above the first focal point 11, and the second lens 2 selects the lower half below the first focal point 11. The arrow line segment in the figure is the optical path diagram. When the light is emitted from the light-emitting end of the first lens 1 and converges at the first focal point 11, it enters the light-incident end of the second lens 2 through the first focal point 11 and is emitted from the light-emitting end of the second lens 2. This reduces the longitudinal height of the lens, reduces the consumption of materials, and lowers the production cost.
[0045] As Figure 3 and Figure 4 shown, it is the third embodiment of the present utility model. The difference from the first embodiment is that the focal length of the first lens 1 is greater than that of the second lens 2, and the height of the first lens 1 is greater than that of the second lens 2, realizing the reduction of the light-emitting end. When there is a small space in the front part of the vehicle lamp, this scheme can be applied. Under the limitation of a small space, it can ensure relatively uniform light emission and high system efficiency.
[0046] The light-emitting end adjusting structure further includes: a light condensing part 3 and a total reflection part 4. A light source is arranged on one side of the light condensing part 3. The total reflection part 4 is arranged on the other side of the light condensing part 3. The reflection part is provided with a total reflection surface. The light emitted by the light source is incident on the total reflection surface through the light condensing part 3, and is emitted from the first lens 1 after total reflection by the total reflection surface.
[0047] The present utility model also provides a vehicle lamp, including the above-mentioned light-emitting end adjusting structure.
[0048] All in all, for a light-emitting end adjusting structure of the present utility model, after the light is refracted from the light-emitting end of the first lens, it enters the air, is refracted again through the light-incident end of the second lens, and finally is emitted from the light-emitting end of the second lens. Since the focal lengths of the first lens and the second lens are different, the size of the light-emitting end can be adjusted according to the relative relationship between the focal length of the first lens and the focal length of the second lens. The light-emitting end of the present utility model can be less than 5 mm and greater than 12 mm. The process is simple and convenient for processing. And by setting the first focal point and the second focal point to coincide, the present utility model can maximize the light-emitting efficiency and reduce the system power consumption.
[0049] For the vehicle lamp of the present utility model, since it has the light-emitting end adjusting structure, it simultaneously has the advantages of the light-emitting end adjusting structure.
[0050] All components selected in this application are common standard components or components known to those skilled in the art. Their structures and principles can all be learned through technical manuals by those skilled in the art or obtained through conventional experimental methods.
[0051] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0052] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0053] Based on the above-mentioned ideal embodiments of the present utility model as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A light output end adjustment structure, characterized in that: include: A first lens (1), wherein the light-emitting end of the first lens (1) has a first focus (11); a second lens (2), wherein the light incident end of the second lens (2) has a second focus, and the focal lengths of the first lens (1) and the second lens (2) are different; When light is emitted from the light output end of the first lens (1), it converges at the first focus (11), enters the light input end of the second lens (2) through the first focus (11), and is emitted from the light output end of the second lens (2).
2. The light output end adjustment structure according to claim 1, characterized in that: The second focus coincides with the first focus (11).
3. The light output end adjustment structure according to claim 1, characterized in that: The focal length of the first lens (1) is smaller than the focal length of the second lens (2).
4. The light output end adjustment structure according to claim 1, characterized in that: The focal length of the first lens (1) is greater than the focal length of the second lens (2).
5. The light output end adjustment structure according to claim 1, characterized in that: The light output end of the first lens (1) is an arc surface that arches from its light input end side toward its light output end side.
6. The light output end adjustment structure according to claim 5, characterized in that: The light incident end of the second lens (2) is an arc surface that arches from its light emitting end side toward its light incident end side.
7. The light output end adjustment structure according to claim 1, characterized in that: The first lens (1) is a focusing lens.
8. The light output end adjustment structure according to claim 1, characterized in that: The second lens (2) is a collimating lens.
9. The light output end adjustment structure according to claim 1, characterized in that: Also includes: A light focusing portion (3), wherein a light source is arranged on one side of the light focusing portion (3); A total reflection portion (4), the total reflection portion (4) is arranged on the other side of the light focusing portion (3), the reflection portion is provided with a total reflection surface, the light emitted by the light source is incident on the total reflection surface via the light focusing portion (3), is totally reflected by the total reflection surface, and is emitted from the first lens (1).
10. A vehicle lamp, characterized in that: It comprises the light output end adjustment structure as described in any one of claims 1 to 9.