Optical module for vehicle lamp, vehicle lamp and vehicle
By setting reflective patterns on the decorative frame and light guide plate of the headlights, the multi-layer light emitting effect of the single-layer light guide plate is achieved, solving the problems of poor lighting effects of traditional headlights and complex and high production costs.
Patent Information
- Application Number
- CN202422262970.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The thick-walled light guide plate used in traditional car lights can only achieve a single-layer luminous effect, resulting in poor lighting effects, difficult forming, long production cycle, complex process, and high cost.
By providing a first reflection pattern on the decorative back plate of the decorative frame and a second reflection pattern on the reflective surface of the light guide plate, the two are arranged layered, so that light rays can achieve multi-layer reflection and light emission in the single-layer light guide plate.
The multi-layer luminous effect of a single-layer light guide plate is realized, which improves the lighting space and layering of the headlights, reduces costs, and simplifies the production process.
Smart Images
Figure CN223004858U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of vehicle lamps, and more specifically, to an optical module for vehicle lamps, a vehicle lamp, and a vehicle. Background Art
[0002] The signal lamp of a vehicle lamp usually uses a thick-wall light guide plate to achieve the lighting effect. However, for traditional light guide plates, only a single-layer lighting effect can be achieved, with a relatively simple form and no sense of space or layering, resulting in a poor lighting effect of the signal lamp.
[0003] In addition, the thick-wall light guide plate is difficult to form, has a long production cycle, complex processes, and high costs.
[0004] Therefore, how to improve the lighting effect of vehicle lamps has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this application is to provide an optical module for vehicle lamps to improve the lighting effect of vehicle lamps.
[0006] Another purpose of this application is to provide a vehicle lamp with the above optical module.
[0007] Another purpose of this application is to provide a vehicle with the above vehicle lamp.
[0008] To achieve the above purposes, this application provides the following technical solutions:
[0009] An optical module for vehicle lamps, comprising:
[0010] A decorative frame, the decorative frame includes a light-emitting window and a decorative back plate disposed opposite to the light-emitting window, and a first reflection pattern is provided on the decorative back plate;
[0011] A light guide plate, the light guide plate includes a light incident end face and two reflection faces disposed opposite to each other, and any one of the two reflection faces is located at the position of the light-emitting window, and a second reflection pattern is provided on at least one of the reflection faces, and the second reflection pattern is stacked with the first reflection pattern, so that the light incident from the light incident end face is reflected by the first reflection pattern and the second reflection pattern and emitted from the light-emitting window of the decorative frame.
[0012] Optionally, in the above optical module, the decorative frame defines a cavity for accommodating the light guide plate.
[0013] Optionally, in the above optical module, the light guide plate and the decorative frame are stacked.
[0014] Optionally, in the above optical module, the second reflection patterns are provided on both of the two reflection surfaces, and the second reflection patterns of the two reflection surfaces are different.
[0015] Optionally, in the above optical module, the decorative frame is a matte black decorative frame; and / or,
[0016] The first reflection pattern is a highly reflective substrate or an aluminized surface.
[0017] Optionally, in the above optical module, the second reflection pattern is vertical grain frosting, ink, or leather texture.
[0018] Optionally, in the above optical module, the thickness of the light guide plate is 1.5 mm to 7 mm; and / or,
[0019] The gap between the light guide plate and the decorative frame is 0.1 mm to 10 mm.
[0020] A vehicle lamp, characterized in that it includes a light source and the optical module for a vehicle lamp as described in any one of the above, and the light source is arranged at the light incident end face position of the light guide plate.
[0021] Optionally, in the above vehicle lamp, it includes a lamp housing, the light source is located inside the lamp housing, and the decorative frame is connected to the lamp housing.
[0022] A vehicle, characterized in that it includes the vehicle lamp as described above.
[0023] The optical module for a vehicle lamp provided by the present application, by providing a first reflection pattern on the decorative back plate of the decorative frame opposite to the light exit window, and any one of the two reflection surfaces of the light guide plate is located at the light exit window position, and at the same time, a second reflection pattern is provided on at least one reflection surface of the light guide plate, and the second reflection pattern is stacked with the first reflection pattern, so that when light enters from the light incident end face of the light guide plate, it is reflected by the first reflection pattern and the second reflection pattern and exits from the light exit window of the decorative frame, thereby presenting a multi-layer light-emitting effect. As can be seen from the above examples, the optical module for a vehicle lamp provided by the present application, by providing a first reflection pattern on the decorative back plate of the decorative frame, and at the same time providing a second reflection pattern on at least one reflection surface of the light guide plate, and the second reflection pattern is stacked with the first reflection pattern, can enable a single-layer light guide plate to achieve a multi-layer light-emitting effect, improve the spatial sense and layering of vehicle lamp illumination, and further improve the illumination effect of the vehicle lamp and reduce costs.
[0024] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not mutually contradictory. All feasible combinations of features are the technical contents clearly recorded herein. Any one of the multiple sub-features included in the same statement can be applied independently without necessarily being applied together with other sub-features. Description of the Drawings
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.
[0026] Figure 1 Structural schematic diagram of the optical module provided by the embodiment of the present application;
[0027] Figure 2 Structural schematic diagram of the decorative frame provided by the embodiment of the present application;
[0028] Figure 3 Front view of the decorative frame provided by the embodiment of the present application;
[0029] Figure 4 Cross-sectional view of the decorative frame provided by the embodiment of the present application;
[0030] Figure 5 Structural schematic diagram of the light guide plate provided by the embodiment of the present application;
[0031] Figure 6 Front view of the light guide plate provided by the embodiment of the present application;
[0032] Figure 7 Rear view of the light guide plate provided by the embodiment of the present application;
[0033] Figure 8 Structural schematic diagram of the vehicle lamp provided by the embodiment of the present application;
[0034] Figure 9 Schematic diagram of light conduction of the light guide plate provided by the embodiment of the present application.
[0035] Among them, 100 is the decorative frame, 101 is the light-emitting window, 102 is the decorative back plate, 103 is the first reflection pattern, and 104 is the cavity;
[0036] 200 is the light guide plate, 201 is the light incident end face, 202 is the reflection surface, and 203 is the second reflection pattern;
[0037] 300 is a light source;
[0038] 400 is a lamp housing. Specific embodiments
[0039] The core of this application lies in providing an optical module for vehicle lamps to improve the lighting effect of vehicle lamps.
[0040] Another core of this application lies in providing a vehicle lamp having the above optical module.
[0041] Another core of this application lies in providing a vehicle having the above vehicle lamp.
[0042] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0043] The signal lights of vehicle lamps usually use the scheme of thick-wall light guide plates to achieve the lighting effect. However, for traditional light guide plates, only a single-layer lighting effect can be achieved, with a relatively single form and no sense of space or layering, resulting in a poor lighting effect of the signal lights. If a multi-layer lighting effect is to be achieved, a multi-layer light guide plate scheme needs to be adopted and multiple rows of LED modules need to be matched, resulting in a high cost.
[0044] In addition, the thick-wall light guide plate is difficult to form, has a long production cycle, complex processes, and high costs.
[0045] Therefore, as Figure 1 shown, the embodiments of this application disclose an optical module for vehicle lamps, including a decorative frame 100 and a light guide plate 200. By setting a first reflection pattern 103 on the decorative back plate 102 of the decorative frame 100, and at least setting a second reflection pattern 203 on one reflection surface 202 of the light guide plate 200, and the second reflection pattern 203 is stacked with the first reflection pattern 103, the single-layer light guide plate 200 can thus achieve a multi-layer lighting effect, improving the sense of space and layering of the vehicle lamp lighting, and further improving the lighting effect of the vehicle lamp and reducing the cost.
[0046] Next, the optical module for vehicle lamps disclosed in the embodiments of this application will be specifically explained and described in conjunction with Figures 1 to 9 .
[0047] Among them, as Figure 2 and Figure 3As shown, the decorative frame 100 has two relatively arranged surfaces. For the convenience of understanding, the two surfaces of the decorative frame 100 are respectively defined as the first surface and the second surface. The decorative frame 100 includes a light-emitting window 101 and a decorative back plate 102 arranged opposite to the light-emitting window 101. The light-emitting window 101 is opened on the first surface of the decorative frame 100, and the decorative back plate 102 is located on the second surface of the decorative frame 100. As Figures 5 to 7 shown, the light guide plate 200 includes a light incident end face 201 and two relatively arranged reflecting surfaces 202, and the two reflecting surfaces 202 are respectively located on both sides of the light incident end face 201. As Figure 1 and Figure 9 shown, any one of the two reflecting surfaces 202 is located at the position of the light-emitting window 101, so that after the light enters the light guide plate 200 from the light incident end face 201, it can be emitted from the position of the light-emitting window 101 after being repeatedly conducted by the reflecting surface 202 of the light guide plate 200, thereby realizing the lighting effect.
[0048] As Figure 2 and Figure 3 shown, a first reflection pattern 103 is provided on the decorative back plate 102. At the same time, as Figures 5 to 7 shown, a second reflection pattern 203 is provided on at least one of the reflecting surfaces 202. The second reflection pattern 203 is stacked with the first reflection pattern 103, and the second reflection pattern 203 can adopt a pattern different from that of the first reflection pattern 103. As Figure 9 shown, when the light is incident from the light incident end face 201 of the light guide plate 200 and is repeatedly conducted, a part of the light is reflected by the first reflection pattern 103 and emitted from the light-emitting window 101 of the decorative frame 100, and a part of the light is conducted and emitted from the light-emitting window 101 of the decorative frame 100 at the position of the second reflection pattern 203, so that a multi-layer pattern lighting effect is realized through a single-layer light guide plate 200, increasing the sense of space and hierarchy of the vehicle lamp lighting, improving the lighting effect of the vehicle lamp, and reducing the cost. It should be noted that the multi-layer pattern light-emitting effect in the above embodiment can be a two-layer pattern lighting effect, and of course, it can also be a three-layer pattern lighting effect to increase the sense of space and hierarchy of the vehicle lamp lighting.
[0049] In some embodiments, as Figure 4As shown, the decorative frame 100 has a cavity 104 for accommodating the light guide plate 200. The light guide plate 200 and the decorative frame 100 are stacked in the cavity 104 to achieve the stacking of the second reflection pattern 203 and the first reflection pattern 103, ensuring the layering effect of the pattern lighting. Moreover, there is a gap between the light guide plate 200 and the decorative frame 100. The gap can be 0.1 mm to 10 mm, preferably, the gap can be 0.1 mm to 2 mm, so as to improve the space utilization rate of the decorative frame 100 and reduce the volume of the entire optical module. At the same time, the thickness of the light guide plate 200 can be 1.5 mm to 7 mm, preferably, the thickness of the light guide plate 200 can be 2.5 mm to 4.5 mm. From the above examples, it can be seen that through the cooperation of a relatively thin light guide plate 200 and a smaller gap with the decorative frame 100, without using multiple light guide plates, the multi-layer pattern lighting effect can be achieved, increasing the sense of space and layering of the vehicle lamp lighting, improving the lighting effect of the vehicle lamp. Compared with the traditional thick-wall light guide plate, it can not only achieve the lighting effect of multi-layer patterns, but also effectively reduce the weight of the entire vehicle lamp, reduce the production difficulty of the light guide plate, reduce the number of components, and thus reduce the cost.
[0050] In some embodiments, as Figure 6 and Figure 7 shown, second reflection patterns 203 are provided on both reflection surfaces 202 of the light guide plate 200. For the convenience of understanding, the two reflection surfaces 202 of the light guide plate 200 are respectively defined as the front reflection surface and the back reflection surface, where the front reflection surface is located at the position of the light output window 101. Moreover, the second reflection patterns 203 on the two reflection surfaces 202 are different, that is, the second reflection pattern 203 on the front reflection surface can adopt a pattern different from that of the second reflection pattern 203 on the back reflection surface. As Figure 9 shown, when light enters from the light incident end face 201 of the light guide plate 200 and is repeatedly conducted, a part of the light is reflected by the first reflection pattern 103 out of the light output window 101 of the decorative frame 100, and a part of the light is conducted out of the light output window 101 of the decorative frame 100 at the positions of the second reflection pattern 203 on the front reflection surface and the second reflection pattern 203 on the back reflection surface, so that the three-layer pattern lighting effect is achieved through a single-layer light guide plate 200, increasing the sense of space and layering of the vehicle lamp lighting, improving the lighting effect of the vehicle lamp, and reducing the cost.
[0051] In some embodiments, as Figure 3As shown, the decorative frame 100 may be a matte black decorative frame, thereby improving the wear resistance of the decorative frame 100 and forming a light and dark difference with the first reflective pattern 103. The first reflective pattern 103 may be a rhombus shape formed by multiple high-reflective substrates or aluminum-plated surfaces to improve reflectivity and reduce light loss, thereby improving the lighting effect of the first reflective pattern 103 through the cooperation between the first reflective pattern 103 and the decorative frame 100. Of course, the first reflective pattern 103 may also be other patterns formed by high-reflective substrates or aluminum-plated surfaces, such as triangles, heart shapes, etc., to enrich the lighting effect of the pattern.
[0052] In some embodiments, Figure 6 and Figure 7 As shown, the second reflective pattern 203 may be made of vertical frosting, ink or leather grain. Figure 6 As shown, the second reflection pattern 203 on the regular reflection surface of the light guide plate 200 may be made of frosted leather grain and vertical stripes, such as Figure 7 As shown, the second reflection pattern 203 on the back reflection surface of the light guide plate 200 can be made of ink or a deep leather grain pattern, so that the two reflection surfaces 202 can achieve different second reflection pattern 203 effects.
[0053] In some embodiments, when light enters the thin-walled light guide plate 200, the light is repeatedly transmitted on the two reflective surfaces 202 of the light guide plate 200 due to the small thickness of the light guide plate 200. Figure 9 As shown, the repeatedly transmitted light will be transmitted out of the light exit window 101 of the decorative frame 100 at the texture and pattern of the light guide plate 200, i.e., the second reflection pattern 203 of the front reflection surface and the back reflection surface of the light guide plate 200, and part of the light will be reflected by the diamond pattern of the decorative frame 100, ultimately presenting a three-layer lighting effect with delicate and rich layering.
[0054] The optical module for a vehicle lamp provided by this application has a first reflection pattern 103 disposed on the decorative back plate 102 of the decorative frame 100 opposite to the light-emitting window 101. Any one of the two reflection surfaces 202 of the light guide plate 200 is located at the position of the light-emitting window 101. At the same time, a second reflection pattern 203 is disposed on at least one reflection surface 202 of the light guide plate 200, and the second reflection pattern 203 is stacked with the first reflection pattern 103. When light is incident from the light incident end face 201 of the light guide plate 200, it is reflected by the first reflection pattern 103 and the second reflection pattern 203 and emitted from the light-emitting window 101 of the decorative frame 100, thereby presenting a multi-layer light-emitting effect. As can be seen from the above example, for the optical module for a vehicle lamp provided by this application, by disposing the first reflection pattern 103 on the decorative back plate 102 of the decorative frame 100, and at the same time disposing the second reflection pattern 203 on at least one reflection surface 202 of the light guide plate 200, and the second reflection pattern 203 is stacked with the first reflection pattern 103, the single-layer light guide plate 200 can achieve a multi-layer light-emitting effect, improving the sense of space and layering of the vehicle lamp illumination, thereby improving the illumination effect of the vehicle lamp and reducing the cost.
[0055] As Figure 8 shown, an embodiment of this application also discloses a vehicle lamp, which includes a light source 300 and the optical module for a vehicle lamp disclosed in the above embodiment. Therefore, this optical module has all the technical effects of the above optical module, and will not be elaborated herein.
[0056] Among them, the light source 300 is disposed at the position of the light incident end face 201 of the light guide plate 200, so that the light emitted by the light source 300 can enter from the light incident end face 201 of the light guide plate 200, conduct repeatedly along the light guide plate 200, and finally be emitted from the position of the light-emitting window 101 of the decorative frame 100, thereby realizing the lighting effect.
[0057] In some embodiments, as Figure 8 shown, the vehicle lamp includes a lamp housing 400, and the light source 300 is located inside the lamp housing 400. Among them, the light source 300 can adopt an LED module, and the decorative frame 100 is connected to the lamp housing 400. At the same time, the light guide plate 200 can extend into the lamp housing 400, so that the LED module can be located at the position of the light incident end face 201 of the light guide plate 200, ensuring that the light emitted by the light source 300 can enter from the light incident end face 201 of the light guide plate 200. It should be noted that the decorative frame 100 and the lamp housing 400 can adopt an integral structure or a split structure, and can be fixed by means of fastening, clamping or plugging, etc., which will not be limited herein.
[0058] An embodiment of this application also discloses a vehicle, which includes a vehicle lamp, and this vehicle lamp is the vehicle lamp disclosed in the above embodiment. Therefore, this vehicle lamp has all the technical effects of the above vehicle lamp, and will not be elaborated herein.
[0059] The terms "first", "second", etc. in the description, claims and the above drawings of the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising", "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units not listed.
[0060] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1. An optical module for a vehicle lamp, characterized in that: include: A decorative frame (100), the decorative frame (100) comprising a light exit window (101) and a decorative back plate (102) arranged opposite to the light exit window (101), the decorative back plate (102) being provided with a first reflective pattern (103); A light guide plate (200), the light guide plate (200) comprising a light incident end surface (201) and two oppositely arranged reflective surfaces (202), any one of the two reflective surfaces (202) being located at the position of the light exit window (101), a second reflective pattern (203) being arranged on at least one of the reflective surfaces (202), the second reflective pattern (203) being arranged in a stacked manner with the first reflective pattern (103), so that light incident from the light incident end surface (201) is reflected by the first reflective pattern (103) and the second reflective pattern (203), and is emitted from the light exit window (101) of the decorative frame (100).
2. The optical module according to claim 1, characterized in that: The decorative frame (100) defines a cavity (104) for accommodating the light guide plate (200).
3. The optical module according to claim 2, characterized in that: The light guide plate (200) and the decorative frame (100) are stacked.
4. The optical module according to claim 1, characterized in that: The second reflection pattern (203) is arranged on both reflection surfaces (202), and the second reflection patterns (203) of the two reflection surfaces (202) are different.
5. The optical module according to claim 1, characterized in that: The decorative frame (100) is a matte black decorative frame; and / or, The first reflective pattern (103) is a high reflective substrate or an aluminum-plated surface.
6. The optical module according to claim 1, characterized in that: The second reflective pattern (203) is vertical frosting, ink or leather texture.
7. The optical module according to claim 1, characterized in that: The thickness of the light guide plate (200) is 1.5 mm to 7 mm; and / or, The gap between the light guide plate (200) and the decorative frame (100) is 0.1 mm to 10 mm.
8. A vehicle lamp, characterized in that: It comprises a light source (300) and an optical module for a vehicle lamp as claimed in any one of claims 1 to 7, wherein the light source (300) is arranged at the light incident end surface (201) of the light guide plate (200).
9. The vehicle lamp according to claim 8, characterized in that: It comprises a lamp housing (400), the light source (300) is located in the lamp housing (400), and the decorative frame (100) is connected to the lamp housing (400).
10. A vehicle, characterized in that: Comprising the vehicle light as claimed in claim 8 or 9.