Function multiplexing optical system and vehicle lamp thereof
By designing the thick-walled body in the car light to share the light outlet for multiple collimated structures, each light source is set at the focus of the collimated structure, and the light outlet designed with a specific angle is used to solve the problem of low optical efficiency utilization and poor lighting uniformity, and the reasonable and efficient use of light and aesthetic effect are achieved.
Patent Information
- Application Number
- CN202422336710.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-24
AI Technical Summary
现有车灯设计中存在光学效率利用不高、点亮均匀性不好的问题,尤其在多功能共用一个出光口的设计中容易出现离焦现象,且造型空间不足。
Using a functional multiplexing optical system, the thick-walled part body is designed to share a light exit end with multiple collimated structures. Each light source is set at the focus of the collimated structure. After the light is refracted and reflected by the collimated structure, the light exits horizontally from the wedge-shaped structure. The specific angle design of the first and second extrusion surfaces ensures that the light does not defocus and uniformly exits.
It realizes the rational and efficient use of light efficiency, and evenly illuminates the light, solves the problem of insufficient modeling space and ensures beautiful effects.
Smart Images
Figure CN223076788U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle lamps, and particularly relates to an optical system with function multiplexing and a vehicle lamp thereof. Background Art
[0002] With the rapid development of automotive headlamp technology and the increasing pursuit of consumers for the lighting effect of headlamps, production cost and efficiency are also problems that need to be solved urgently by each headlamp supplier. In the existing scheme, after the light rays are emitted from the LED, they pass through a series of acting devices and then are emitted from the light-emitting surface to achieve a more uniform lighting effect of the headlamp.
[0003] On traditional vehicle lamps, due to factors such as styling space limitations, there are problems of low utilization of optical efficiency and poor lighting uniformity. Most of the existing technologies adopt the design of sharing one light-emitting port for multiple functions to solve these problems. However, due to factors such as multiple light sources or inclined styling in multiple functions, there will be a defocus problem for some light sources, and the light efficiency still cannot be utilized reasonably and efficiently. Summary of the Utility Model
[0004] In view of this, in order to solve the problems existing in the prior art, the purpose of the present utility model is to provide an optical system with function multiplexing and a vehicle lamp thereof, which has the effects of no defocus, uniform lighting, beauty, and reasonable and efficient utilization of light efficiency.
[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:
[0006] An optical system with function multiplexing, including: at least two light sources and a thick-wall part body. One end of the thick-wall part body is the light-emitting end, and the other end is the light-incident end. The light-incident end includes at least two collimating structures. Each light source is arranged at the focus of one collimating structure. The light-emitting end is provided with a plurality of wedge-shaped structures arranged in sequence. Each wedge-shaped structure includes a first light-emitting surface and a second light-emitting surface. An included angle α is formed between the first light-emitting surface and the horizontal plane, and an included angle β is formed between the second light-emitting surface and the horizontal plane.
[0007] The specific technical effect is: The thick-wall part body is designed with a structure where multiple collimating structures share one light-emitting end, which solves the problem of insufficient styling space. And each light source is arranged at the focus of one collimating structure, so that the light rays emitted by each light source can pass through a series of refractions and reflections of the collimating structure and then be emitted from the wedge-shaped structure. Moreover, with this design of the first light-emitting surface and the second light-emitting surface, it is ensured that the light rays can be emitted horizontally, having the effects of no defocus, uniform lighting, beauty, and reasonable and efficient utilization of light efficiency.
[0008] Further, the light ray emitted by the light source and hitting any one of the first light-emitting surfaces after passing through the collimating structure is the first incident light ray, and the light ray horizontally emitted after passing through the first light-emitting surface is the first emitted light ray. The light ray emitted by the light source and hitting any one of the second light-emitting surfaces after passing through the collimating structure is the second incident light ray, and the light ray horizontally emitted after passing through the second light-emitting surface is the second emitted light ray. An angle θ4 is formed between the first incident light ray and the normal line of the first light-emitting surface, an angle θ3 is formed between the first emitted light ray and the normal line of the first light-emitting surface, an angle θ2 is formed between the second incident light ray and the normal line of the second light-emitting surface, and an angle θ1 is formed between the second emitted light ray and the normal line of the second light-emitting surface. Assuming the refractive index of air is n1 and the refractive index of the thick-walled part body is n2, Formula 1: n1sinθ1 = n2sinθ2, Formula 2: n1sinθ3 = n2sinθ4, Formula 3: α = 90° - θ3, Formula 4: β = 90° - θ1. Then, the angles of α and β are calculated through Formula 1, Formula 2, Formula 3, and Formula 4.
[0009] The specific technical effect is: According to the incident light conditions, the angle between the first light-emitting surface and the second light-emitting surface is designed. The refractive index n2 is determined by the material of the thick-walled part body itself. With the material of the thick-walled part body itself and the emission angle determined, that is, n1, n2, θ1, and θ3 determined, θ2 and θ4 can be calculated according to Formula 1 and Formula 2. Therefore, α and β can be calculated according to Formula 3 and Formula 4, and further, the angle between the first light-emitting surface and the second light-emitting surface can be designed.
[0010] Further, the number of the light source and the collimating structure is two. One of the collimating structures includes a first refracting surface and a first reflecting surface, and the other collimating structure includes a second refracting surface and a second reflecting surface. The first refracting surface and the second refracting surface are arranged close to the light source, and the first reflecting surface and the second reflecting surface are arranged back to back.
[0011] The specific technical effect is: With this design, the light emitted by one light source enters through the first refracting surface, is reflected by the first reflecting surface, and then turns into parallel light. Then, after passing through the second light-emitting surface and refracting, it is horizontally emitted. The light emitted by the other light source enters through the second refracting surface, is reflected by the second reflecting surface, and then turns into parallel light. Then, after passing through the first light-emitting surface and refracting, it is horizontally emitted.
[0012] Further, the connection point of the first reflecting surface and the second reflecting surface is point A, the lower end of the light-emitting end is point C, and the connection line between point A and point C is connection line L AC , the upper end of the light-emitting end is point B, one end of the first refracting surface is point E, and the connection line between point E and point B is connection line L BE , connection line L AC and connection line LBE The distance between them is H1, and H1 ≥ H3.
[0013] The specific technical effect is: By using the connecting line L AC and the connecting line L BE with the design that the distance H1 between them ≥ the height H3 of the light-emitting port of the light-emitting end, it is ensured that the light rays starting from this light source are all emitted from the light-emitting end, and the light-emitting port of the light-emitting end is evenly illuminated.
[0014] Further, the connection part of the first reflecting surface and the second reflecting surface is point A, the upper end of the light-emitting end is point B, and the connecting line between point A and point B is the connecting line L AB , the lower end of the light-emitting end is point C, one end of the second refracting surface is point D, and the connecting line between point C and point D is the connecting line L CD , the connecting line L AB and the connecting line L CD The distance between them is H2, and H2 ≥ H3.
[0015] The specific technical effect is: By using the connecting line L AB and the connecting line L CD with the design that the distance H2 between them ≥ the height H3 of the light-emitting port of the light-emitting end, it is ensured that the light rays starting from this light source are all emitted from the light-emitting end, and the light-emitting port of the light-emitting end is evenly illuminated.
[0016] Further, the number of the light source and the collimating structure is two each. Each collimating structure includes a first refracting part, a second refracting part and a total reflection part. The first refracting part and the second refracting part are both located inside the total reflection part. The first refracting part is arranged opposite to the light source, and the second refracting part is arranged on the side of the first refracting part.
[0017] The specific technical effect is: Part of the light emitted by one light source enters through the first refracting part, after being collimated, is refracted by the second light-emitting surface and then exits horizontally. Another part is refracted by the second refracting part and enters and hits the total reflection part, and after being totally reflected by it, is collimated and refracted by the first light-emitting surface and then exits horizontally; Part of the light emitted by the other light source enters through the first refracting part, after being collimated, is refracted by the first light-emitting surface and then exits horizontally. Another part is refracted by the second refracting part and enters and hits the total reflection part, and after being totally reflected by it, is collimated and refracted by the second light-emitting surface and then exits horizontally.
[0018] Further, the light colors of the two light sources are the same.
[0019] Further, the light colors of the two light sources are different from each other.
[0020] A vehicle lamp, which includes the optical system with function multiplexing as described in any one of the above.
[0021] The beneficial effects of the present utility model are as follows:
[0022] (1) The design of the thick-walled part body is such that multiple collimating structures share one light-emitting end, which solves the problem of insufficient modeling space. Moreover, each light source is arranged at the focus of a collimating structure, so that the light emitted by each light source can pass through a series of refractions and reflections of the collimating structure and then be emitted from the wedge-shaped structure;
[0023] (2) With this design for the first light-emitting surface and the second light-emitting surface, it is ensured that the light can be emitted horizontally, with the effects of non-defocusing, uniform lighting, aesthetics, and reasonable and efficient utilization of light efficiency.
[0024] To make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, details are described as follows. Description of the Drawings
[0025] 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.
[0026] Figure 1 is the optical path diagram of the optical system with function multiplexing of the present utility model;
[0027] Figure 2 is the optical path diagram of Embodiment 1 of the present utility model;
[0028] Figure 3 is the structural schematic diagram of the thick-walled part body of Embodiment 1;
[0029] Figure 4 is the optical path diagram of Embodiment 2 of the present utility model;
[0030] Figure 5 is the structural schematic diagram of the thick-walled part body of Embodiment 2.
[0031] In the figure:
[0032] 1. Light source; 2. Thick-walled part body; 3. Light-emitting end; 4. Light-incident end; 5. Collimating structure; 6. Wedge-shaped structure; 7. First light-emitting surface; 8. Second light-emitting surface; 9. First refracting surface; 10. First reflecting surface; 11. Second refracting surface; 12. Second reflecting surface; 13. First refracting part; 14. Second refracting part; 15. Total reflection part. Detailed Embodiments
[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0034] An optical system with function multiplexing, which includes: at least two light sources 1 and a thick-wall part body 2. One end of the thick-wall part body 2 is a light-emitting end 3, and the other end of the thick-wall part body 2 is a light-incident end 4. The light-incident end 4 includes at least two collimation structures 5. Each light source 1 is disposed at the focus of a collimation structure 5. The light-emitting end 3 is provided with a plurality of wedge-shaped structures 6 arranged in sequence. Each wedge-shaped structure 6 includes a first light-emitting surface 7 and a second light-emitting surface 8. An angle α is formed between the first light-emitting surface 7 and the horizontal plane, and an angle β is formed between the second light-emitting surface 8 and the horizontal plane.
[0035] It should be noted here that the design of the thick-wall part body 2 with multiple collimation structures 5 sharing one light-emitting end 3 solves the problem of insufficient modeling space. And each light source 1 is disposed at the focus of a collimation structure 5, so that the light emitted by each light source 1 can be refracted and reflected by the collimation structure 5 in series and then emitted from the wedge-shaped structure 6. And with this design of the first light-emitting surface 7 and the second light-emitting surface 8, it is ensured that the light can be emitted horizontally, with the effects of no defocusing, uniform lighting, beauty, and reasonable and efficient utilization of light efficiency.
[0036] As Figure 1 shown, the light from the light source 1 hitting any first light-emitting surface 7 through the collimation structure 5 is the first incident light ray, and the light ray horizontally emitted after passing through the first light-emitting surface 7 is the first emitted light ray. The light from the light source 1 hitting any second light-emitting surface 8 through the collimation structure 5 is the second incident light ray, and the light ray horizontally emitted after passing through the second light-emitting surface 8 is the second emitted light ray. An angle θ4 is formed between the first incident light ray and the normal line of the first light-emitting surface 7, an angle θ3 is formed between the first emitted light ray and the normal line of the first light-emitting surface 7, an angle θ2 is formed between the second incident light ray and the normal line of the second light-emitting surface 8, and an angle θ1 is formed between the second emitted light ray and the normal line of the second light-emitting surface 8. Assuming the refractive index of air is n1 and the refractive index of the thick-wall part body 2 is n2, formula one: n1sinθ1 = n2sinθ2, formula two: n1sinθ3 = n2sinθ4, formula three: α = 90° - θ3, formula four: β = 90° - θ1. Then the angles of α and β are calculated through formula one, formula two, formula three, and formula four.
[0037] It should be noted here that the refractive index n2 is determined by the material of the thick-walled part body 2 itself. The material of the thick-walled part body 2 itself and the exit angle are determined, that is, n1, n2, θ1, and θ3 are determined. Then, θ2 and θ4 can be calculated according to Formula 1 and Formula 2. Therefore, α and β can be calculated according to Formula 3 and Formula 4, and then the first light-emitting surface 7 and the second light-emitting surface 8 can be designed.
[0038] A vehicle headlight, which includes the optical system with function multiplexing as described in any one of the above.
[0039] Embodiment 1:
[0040] As Figures 2 to 3 shown, the number of the light source 1 and the collimating structure 5 is two. One collimating structure 5 includes a first refracting surface 9 and a first reflecting surface 10, and the other collimating structure 5 includes a second refracting surface 11 and a second reflecting surface 12. The first refracting surface 9 and the second refracting surface 11 are arranged close to the light source 1, and the first reflecting surface 10 and the second reflecting surface 12 are arranged back to back.
[0041] It should be noted here that: with this design, the light emitted by one light source 1 enters through the first refracting surface 9, is reflected by the first reflecting surface 10, and then turns into parallel light. Then, after being refracted by the second light-emitting surface 8, it exits horizontally; the light emitted by the other light source 1 enters through the second refracting surface 11, is reflected by the second reflecting surface 12, and then turns into parallel light. Then, after being refracted by the first light-emitting surface 7, it exits horizontally.
[0042] The connection point of the first reflecting surface 10 and the second reflecting surface 12 is point A, the lower end of the light-emitting end 3 is point C, and the connection line between point A and point C is connection line L AC , the upper end of the light-emitting end 3 is point B, one end of the first refracting surface 9 is point E, and the connection line between point E and point B is connection line L BE , connection line L AC and connection line L BE The distance between them is H1, and H1≥H3.
[0043] It should be noted here that: with the design that the distance H1 between connection line L AC and connection line L BE is greater than or equal to the light-emitting port height H3 of the light-emitting end 3, it is ensured that the light rays starting from the light source 1 all exit from the light-emitting end 3, and the light-emitting port of the light-emitting end 3 is evenly illuminated.
[0044] The connection point of the first reflecting surface 10 and the second reflecting surface 12 is point A, the upper end of the light-emitting end 3 is point B, and the connection line between point A and point B is connection line L AB , the lower end of the light-emitting end 3 is point C, one end of the second refracting surface 11 is point D, and the connection line between point C and point D is connection line L CD , connection line L ABThe distance to the connection line L CD is H2, and H2 ≥ H3.
[0045] It should be noted here that: By adopting the design that the distance H2 between the connection line L AB and the connection line L CD is H2 ≥ the light exit height H3 of the light exit end 3, it is ensured that the light rays starting from the light source 1 all exit from the light exit end 3, and the light exit opening of the light exit end 3 is evenly illuminated.
[0046] The above is only a preferred embodiment of the present utility model, and it does not limit the implementation manners and protection scope of the present utility model accordingly.
[0047] The present utility model further has the following implementation manners on the above basis:
[0048] Embodiment 2:
[0049] As Figures 4 to 5 shown,
[0050] The difference from Embodiment 1 is that:
[0051] The number of the light source 1 and the collimation structure 5 is two. Each collimation structure 5 includes a first refraction part 13, a second refraction part 14 and a total reflection part 15. The first refraction part 13 and the second refraction part 14 are both located inside the total reflection part 15. The first refraction part 13 is arranged facing the light source 1, and the second refraction part 14 is arranged on the side of the first refraction part 13.
[0052] It should be noted here that: Part of the light emitted by one of the light sources 1 enters through the first refraction part 13, after being collimated by it, is refracted by the second light exit surface 8 and then exits horizontally. Another part is refracted by the second refraction part 14 and enters and hits the total reflection part 15, after being totally reflected by it, is collimated and refracted by the first light exit surface 7 and then exits horizontally; Part of the light emitted by the other light source 1 enters through the first refraction part 13, after being collimated by it, is refracted by the first light exit surface 7 and then exits horizontally. Another part is refracted by the second refraction part 14 and enters and hits the total reflection part 15, after being totally reflected by it, is collimated and refracted by the second light exit surface 8 and then exits horizontally.
[0053] Furthermore, the optical system of the present utility model can be a single-light system, that is, when the light colors used for the two functions are the same, the light colors of the two light sources 1 are the same.
[0054] Even further, the optical system of the present utility model can be a dual-light system, that is, the two functions share the same light exit opening, and the light colors of the two light sources 1 are different from each other. The light color of one light source 1 is color A, and the light color of the other light source 1 is color B. When the front position function and the steering function are multiplexed, their light colors are white and yellow respectively, and specifically, they can also be adjusted and transformed according to the usage requirements.
[0055] The beneficial effects of the present utility model are as follows:
[0056] (1) The design of the thick-walled part body 2 is such that multiple collimating structures 5 share a single light-emitting end 3, which solves the problem of insufficient styling space. Moreover, each light source 1 is disposed at the focal point of a collimating structure 5, enabling the light emitted by each light source 1 to pass through a series of refractions and reflections of the collimating structure 5 and then exit from the wedge-shaped structure 6.
[0057] (2) With this design of the first light-emitting surface 7 and the second light-emitting surface 8, it is ensured that the light can be emitted horizontally, with the effects of non-defocusing, uniform lighting, aesthetics, and reasonable and efficient utilization of light efficiency.
[0058] Each component selected in this application is a general standard component or a component known to those skilled in the art, and its structure and principle can be learned by those skilled in the art through technical manuals or obtained through conventional experimental methods.
[0059] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" shall 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 internal communication of 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 circumstances.
[0060] 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, and 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 should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.
[0061] Taking the above ideal embodiments of the present utility model as an 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. An optical system with function multiplexing, characterized in that, Comprising: At least two light sources (1) and a thick-walled part body (2), one end of the thick-walled part body (2) is a light-emitting end (3), the other end of the thick-walled part body (2) is a light-incident end (4), the light-incident end (4) at least comprises two collimating structures (5), the light-emitting end (3) is provided with a plurality of wedge-shaped structures (6) arranged in sequence, each wedge-shaped structure (6) comprises a first light-emitting surface (7) and a second light-emitting surface (8), an included angle α is formed between the first light-emitting surface (7) and the horizontal plane, and an included angle β is formed between the second light-emitting surface (8) and the horizontal plane.
2. The optical system with function multiplexing as described in claim 1, characterized in that, The light ray of the light source (1) passing through the collimating structure (5) and hitting any one of the first light-emitting surfaces (7) is a first incident light ray, and the light ray horizontally emitted after passing through the first light-emitting surface (7) is a first emitted light ray. The light ray of the light source (1) passing through the collimating structure (5) and hitting any one of the second light-emitting surfaces (8) is a second incident light ray, and the light ray horizontally emitted after passing through the second light-emitting surface (8) is a second emitted light ray. An included angle θ4 is formed between the first incident light ray and the normal line of the first light-emitting surface (7), an included angle θ3 is formed between the first emitted light ray and the normal line of the first light-emitting surface (7), an included angle θ2 is formed between the second incident light ray and the normal line of the second light-emitting surface (8), and an included angle θ1 is formed between the second emitted light ray and the normal line of the second light-emitting surface (8). Assuming the refractive index of air is n1 and the refractive index of the thick-walled part body (2) is n2, formula one: n1sinθ1 = n2sinθ2, formula two: n1sinθ3 = n2sinθ4, formula three: α = 90° - θ3, formula four: β = 90° - θ1, then the angles of α and β are calculated through formula one, formula two, formula three and formula four.
3. The function multiplexing optical system as described in claim 1, characterized in that, Each light source (1) is arranged at the focus of one collimating structure (5).
4. The optical system with function multiplexing as described in claim 1, characterized in that, The number of the light sources (1) and the collimating structures (5) is both two. One collimating structure (5) comprises a first refracting surface (9) and a first reflecting surface (10), and the other collimating structure (5) comprises a second refracting surface (11) and a second reflecting surface (12). The first refracting surface (9) and the second refracting surface (11) are arranged close to the light source (1), and the first reflecting surface (10) and the second reflecting surface (12) are arranged back to back.
5. The optical system with function multiplexing as described in claim 4, characterized in that, The connection between the first reflecting surface (10) and the second reflecting surface (12) is point A, the lower end of the light-emitting end (3) is point C, and the line connecting point A and point C is line L AC , the upper end of the light-emitting end (3) is point B, one end of the first refracting surface (9) is point E, and the line connecting point E and point B is line L BE , line L AC and line L BE The distance between them is H1, and H1 ≥ H3.
6. The optical system with function multiplexing as described in claim 4, characterized in that, The connection between the first reflecting surface (10) and the second reflecting surface (12) is point A, the upper end of the light-emitting end (3) is point B, and the line connecting point A and point B is line L AB , the lower end of the light-emitting end (3) is point C, one end of the second refracting surface (11) is point D, and the line connecting point C and point D is line L CD , line L AB and line L CD The distance between them is H2, and H2 ≥ H3.
7. The optical system with function multiplexing as described in claim 1, characterized in that, The number of the light sources (1) and the collimating structures (5) is both two. Each collimating structure (5) comprises a first refracting part (13), a second refracting part (14) and a total reflection part (15). The first refracting part (13) and the second refracting part (14) are both located inside the total reflection part (15). The first refracting part (13) is arranged opposite to the light source (1), and the second refracting part (14) is arranged on the side of the first refracting part (13).
8. The function multiplexing optical system as described in claim 1, wherein The light colors of the two light sources (1) are the same.
9. The function multiplexing optical system as described in claim 1, characterized in that, The light colors of the two light sources (1) are different from each other.
10. A vehicle lamp, characterized in that, Comprising the optical system with function multiplexing as described in any one of claims 1 to 9.