Thick-wall part for improving light guide uniformity of inclined shape and vehicle lamp
By setting a total reflective surface and a condenser on the thick-walled body, the problem of uneven light in the tilted-shaped car light is solved, and the uniform distribution of light and the aesthetic effect is improved.
Patent Information
- Application Number
- CN202422467842.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The inclined thick-walled parts cause the LED light to be unevenly lit in the headlights, resulting in dark areas, affecting the beauty and light efficiency.
A thick-walled piece body is designed, including multiple total reflective surfaces and a condenser. The dark area light is reflected through the total reflective structure and enters the outward surface again. The light distribution is optimized using the angle and surface structure of the total reflective surface and the condenser.
The light distribution of the inclined-shaped car lights is achieved, which eliminates dark areas and improves light efficiency and aesthetic effects.
Smart Images
Figure CN223153365U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of light guiding for vehicle lamps, in particular to a thick-walled part and a vehicle lamp for improving the light guiding uniformity of an inclined shape. Background Technique
[0002] As the eyes of a vehicle, automotive lamps are not only related to driving safety but also important elements in the automotive exterior design. The thick-walled part with an inclined shape can better adapt to the current vehicle design style. Especially when the shapes of the front headlamps and the rear tail lamp corner lamps are relatively inclined, it can reasonably utilize the light efficiency and improve the utilization efficiency of light. Moreover, the thick-walled part with an inclined shape can provide a more beautiful and dynamic lighting effect and enhance the visual effect of the vehicle.
[0003] Due to the inclined shape, the installation space is more restricted, and the space for arranging LED lamps is also limited. There is no space behind the head or the tail to arrange LED lamps, so there is no light directly hitting from the light condensing structure. After the LED lamps are lit, dark areas will appear, resulting in uneven lighting, sudden darkening at the head or the tail of the light exit, and obvious granularity and unaesthetic visual defects. Summary of the Invention
[0004] The technical problem to be solved by the utility model is: to provide a thick-walled part for improving the light guiding uniformity of an inclined shape in order to solve the problems existing in the prior art in the above-mentioned background technique.
[0005] The technical solution adopted by the utility model to solve its technical problem is: a thick-walled part for improving the light guiding uniformity of an inclined shape, including a thick-walled part body for light guiding. One side surface of the thick-walled part body is a light exit surface, and a total reflection surface is formed on the side surface of the thick-walled part body opposite to the light exit surface. The total reflection surface includes a first total reflection surface and a second total reflection surface. A plurality of first light condensing devices are distributed on the surface of the thick-walled part body along the setting direction of the first total reflection surface, and a plurality of second light condensing devices are distributed along the setting direction of the second total reflection surface. A total reflection structure for receiving refracted light and performing total reflection is arranged inside one end of the thick-walled part body.
[0006] Further, a notch in the shape of a hollow triangle structure and a slit are formed at one end of the thick-walled part body. The hypotenuse of the notch forms a third total reflection surface, and one side surface of the slit forms a fourth total reflection surface. One end of the thick-walled part body has an inclined surface forming a fifth total reflection surface. The fifth total reflection surface, the fourth total reflection surface, and the third total reflection surface constitute the total reflection structure.
[0007] Furthermore, the included angle between the third total reflection surface and the incident light is 40° - 50°, and the inner surface of the third total reflection surface is provided with a vertical stripe structure.
[0008] Further, the angle between the fourth total reflection surface and the incident light is 40° to 50°, and the inner surface of the fourth total reflection surface is provided with a vertical stripe structure.
[0009] Further, the surface of the first condenser is provided with patterns, and the surface of the second condenser is a polished surface.
[0010] Further, the angle between the first total reflection surface and the incident light is 40° to 50°, and the inner surface of the first total reflection surface is provided with a pattern structure.
[0011] Further, the angle between the second total reflection surface and the incident light is 40° to 50°, and the inner surface of the second total reflection surface is provided with a pattern structure.
[0012] Further still, the pattern structure includes a vertical stripe structure or a leather grain structure.
[0013] Further, the thick-walled part body is made of transparent polymethyl methacrylate or polycarbonate.
[0014] A vehicle lamp is also mentioned, which includes the thick-walled part for improving the light guiding uniformity of the inclined shape in the above solution.
[0015] Advantages of the present utility model:
[0016] The present utility model is provided with two parts of condensers. Part of the light emitted from the two condensers is refracted to reach the total reflection structure. After being totally reflected by the third total reflection surface, the fourth total reflection surface and the fifth total reflection surface of the total reflection structure, it enters the thick-walled part body again and is emitted from the light-emitting surface, illuminating the dark area part in the prior art, making this part be lit and the lighting be more uniform; the present utility model is simple to manufacture, easy to implement, can reasonably utilize the light efficiency, and improve the light pattern uniformity. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0018] Figure 1 is a schematic structural diagram of the present utility model.
[0019] Figure 2 is a schematic structural diagram of the present utility model in another direction.
[0020] Figure 3 is Figure 1 the top view of
[0021] Figure 4 is Figure 1 the front view of
[0022] Figure 5 is Figure 1 the enlarged structural schematic diagram of the notch in
[0023] Figure 6 is Figure 1 The enlarged structural schematic diagram at the slit in the middle.
[0024] Figure 7 is the optical path diagram of the present utility model.
[0025] In the figure: 1. The main body of the thick-walled part; 11. The light-emitting surface; 12. The first total reflection surface; 13. The second total reflection surface; 14. The notch; 15. The slit; 16. The third total reflection surface; 17. The fourth total reflection surface; 18. The fifth total reflection surface; 2. The first condenser; 3. The second condenser. Specific embodiments
[0026] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic way, so they only show the components related to the present utility model.
[0027] As Figures 1 to 4 shown, a thick-walled part for improving the light guiding uniformity of an inclined shape includes a main body 1 of the thick-walled part for guiding light. One side surface of the main body 1 of the thick-walled part is the light-emitting surface 11. A total reflection surface is formed on the side surface of the main body 1 of the thick-walled part opposite to the light-emitting surface 11. The total reflection surface includes a first total reflection surface 12 and a second total reflection surface 13. A plurality of first condensers 2 are distributed on the surface of the main body 1 of the thick-walled part along the setting direction of the first total reflection surface 12, and a plurality of second condensers 3 are distributed along the setting direction of the second total reflection surface 13. A total reflection structure for receiving refracted light and performing total reflection is arranged inside one end of the main body 1 of the thick-walled part.
[0028] As Figure 5 and Figure 6 shown, in this embodiment, the total reflection structure includes a third total reflection surface 16, a fourth total reflection surface 17 and a fifth total reflection surface 18. Since the space for arranging the third total reflection surface 16 is limited, a notch 14 in the shape of a hollow triangle is opened at one end of the main body 1 of the thick-walled part, and the hypotenuse of the notch 14 can form the third total reflection surface 16. The space for arranging the fourth total reflection surface 17 is even smaller, so a slit 15 is opened, and one side surface of the slit 15 can form the fourth total reflection surface 17. For the fifth reflection surface 18, it can only be realized by using the structure of the main body 1 of the thick-walled part itself, that is, the inclined surface at one end of the main body 1 of the thick-walled part forms the fifth total reflection surface 18. Of course, according to actual use requirements, the order, shape, quantity and combination form of forming the total reflection structure can be adjusted.
[0029] More specifically, the angle between the third total reflection surface 16 and the incident light is 40° to 50°. And to increase diffusion, it is preferably provided that the inner surface of the third total reflection surface 16 is provided with a vertical stripe structure. The angle between the fourth total reflection surface 17 and the incident light is 40° to 50°. And to increase diffusion, the inner surface of the fourth total reflection surface 17 is provided with a vertical stripe structure.
[0030] In this embodiment, to enhance diffusion, the surface of the first condenser 2 is provided with patterns; to increase the collimation effect, the surface of the second condenser 3 is a polished surface. Of course, it can be adjusted according to actual needs.
[0031] In this embodiment, the angle between the first total reflection surface 12 and the incident light is 40° to 50°. And to increase the left - right diffusion, the inner surface of the first total reflection surface 12 is provided with a pattern structure. The angle between the second total reflection surface 13 and the incident light is 40° to 50°. And to increase the left - right diffusion, the inner surface of the second total reflection surface 13 is provided with a pattern structure. During actual use, the pattern structure can be a vertical stripe structure, a leather grain structure or other structures.
[0032] In addition, the light - emitting surface 11 of the thick - walled part body 1 can be provided with structures such as patterns or leather grains according to actual needs. The color of the LED light source is not limited and can be red, white, yellow, etc. The thick - walled part body 1 can be made of transparent materials such as polymethyl methacrylate (PMMA) or polycarbonate (PC).
[0033] As Figure 7 shown, the LED light enters the thick - walled part body 1 longitudinally through the first condenser 2 and the second condenser 3. After total reflection by the first total reflection surface 12 and the second reflection surface 13, it is transmitted in the thick - walled part body 1 along its width direction. A part of it exits from the light - emitting surface 11. At the same time, another part of the light is refracted to the total reflection structure and is totally reflected by the third total reflection surface 16, the fourth total reflection surface 17 and the fifth total reflection surface 18 respectively, and then re - enters the thick - walled part body 1 and is transmitted along its width direction, and then exits from the light - emitting surface 11. This part of the refracted light cannot enter the thick - walled part body 1 again in the prior art, that is, it cannot exit from the light - emitting surface 11, that is, this part forms a dark area (as shown at I in the inner frame in Figure 7 ). In this embodiment, the horizontal projection distance of the third total reflection surface 16, the fourth total reflection surface 17 and the fifth total reflection surface 18 in the total reflection structure is greater than or equal to the horizontal projection distance of the dark area, illuminating the dark area and making the lighting more uniform.
[0034] The thick - walled part for improving the light - guiding uniformity of the inclined shape in this embodiment is applicable to vehicle lamps. Therefore, a vehicle lamp can be provided, which includes the thick - walled part for improving the light - guiding uniformity of the inclined shape in this embodiment.
[0035] 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 thick-walled part for improving the light guiding uniformity of an inclined shape, comprising a thick-walled part body (1) for light guiding, one side surface of the thick-walled part body (1) being a light-emitting surface (11), characterized in that: On one side of the thick-walled part body (1) opposite to the light-emitting surface (11), a total reflection surface is formed. The total reflection surface includes a first total reflection surface (12) and a second total reflection surface (13). On the surface of the thick-walled part body (1), a plurality of first condenser lenses (2) are distributed along the setting direction of the first total reflection surface (12), and a plurality of second condenser lenses (3) are distributed along the setting direction of the second total reflection surface (13). Inside one end of the thick-walled part body (1), a total reflection structure for receiving refracted light and performing total reflection is provided.
2. The thick-walled part for improving the uniform light guide of the inclined shape according to claim 1, characterized in that: On one end of the thick-walled part body (1), a notch (14) in the shape of a hollow triangle structure and a slit (15) are formed. The hypotenuse of the notch (14) forms a third total reflection surface (16), and one side surface of the slit (15) forms a fourth total reflection surface (17). One end of the thick-walled part body (1) has an inclined surface forming a fifth total reflection surface (18). The fifth total reflection surface (18), the fourth total reflection surface (17), and the third total reflection surface (16) constitute a total reflection structure.
3. The thick-walled part for improving the light guide uniformity of the inclined shape according to claim 2, characterized in that: The included angle between the third total reflection surface (16) and the incident light is 40° - 50°, and the inner surface of the third total reflection surface (16) is provided with a vertical stripe structure.
4. The thick-walled part for improving the light guide uniformity of the inclined shape according to claim 2, characterized in that: The included angle between the fourth total reflection surface (17) and the incident light is 40° - 50°, and the inner surface of the fourth total reflection surface (17) is provided with a vertical stripe structure.
5. The thick-walled part for improving the uniformity of light guiding in inclined shaping according to claim 1, wherein: The surface of the first condenser lens (2) is provided with patterns, and the surface of the second condenser lens (3) is a polished surface.
6. The thick-walled part for improving the light guiding uniformity of the inclined shape according to claim 1, wherein: The included angle between the first total reflection surface (12) and the incident light is 40° - 50°, and the inner surface of the first total reflection surface (12) is provided with a pattern structure.
7. The thick-walled part for improving the uniform light guiding of the inclined shape according to claim 1, characterized in that: The included angle between the second total reflection surface (13) and the incident light is 40° - 50°, and the inner surface of the second total reflection surface (13) is provided with a pattern structure.
8. The thick-walled part for improving the light guide uniformity of the inclined shape according to claim 6 or 7, characterized in that: The pattern structure includes a vertical stripe structure or a leather grain structure.
9. The thick-walled part for improving the light guide uniformity of the inclined shape according to claim 1, characterized in that: The thick-walled part body (1) is made of transparent polymethyl methacrylate or polycarbonate.
10. A vehicle lamp, characterized in that: It includes the thick-walled part for improving the light guiding uniformity of the inclined shape according to any one of claims 1 - 9.