Vehicle lamp and vehicle

Abstract

The invention discloses a vehicle lamp and a vehicle, and relates to the technical field of vehicle illumination, the vehicle lamp comprises a lamp holder, a light guide plate and a light source, the light guide plate is installed on the lamp holder, the light guide plate is provided with a light inlet end and a light outlet area, the arrangement direction of the light inlet end and the light outlet area is perpendicular to the thickness direction of the light guide plate, and the front end face of the light outlet area is used for emitting light, the thickness of the light inlet end is larger than that of the light outlet area, the light source is arranged on the lamp holder and located on the side, away from the light outlet area, of the light inlet end, and the light source faces the light inlet end. According to the vehicle lamp and the vehicle, light source energy can be fully received, light energy waste can be reduced, the light emitting area of the light guide plate can be made to be thin, the size and weight of the vehicle lamp can be remarkably reduced, curved surface special-shaped design can be conveniently conducted, and the appearance design requirement is met.

Description

Technical Field

[0001] This invention relates to the field of vehicle lighting technology, and particularly to a vehicle lamp and a vehicle. Background Technology

[0002] Some vehicle headlights, such as taillights, use side-lit light sources. Specifically, the light source is located on one side of the light guide plate, either in the width or length direction. The light source enters the light guide plate from one side and exits through it. Because the light source is located on one side of the light guide plate, the light guide plate is relatively thick to more fully receive the light energy and reduce light energy waste. This results in a larger and heavier headlight. At the same time, a thicker light guide plate makes it difficult to carry out curved or irregular shapes, making it difficult to meet the requirements of exterior design. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a vehicle lamp that can fully receive light source energy, reduce light energy waste, and make the light-emitting area of ​​the light guide plate thinner, which can significantly reduce the size and weight of the vehicle lamp. It also facilitates curved and irregular shape designs to meet appearance design requirements.

[0004] The present invention also proposes a vehicle having the above-mentioned headlights.

[0005] According to a first aspect of the present invention, a vehicle lamp includes a lamp holder, a light guide plate, and a light source. The light guide plate is mounted on the lamp holder and has a light-inlet end and a light-outlet area. The arrangement direction of the light-inlet end and the light-outlet area is perpendicular to the thickness direction of the light guide plate. The front end face of the light-outlet area is used for light emission. The thickness dimension of the light-inlet end is greater than the thickness dimension of the light-outlet area. The light source is disposed on the lamp holder and located on the side of the light-inlet end opposite to the light-outlet area, and the light source faces the light-inlet end.

[0006] The vehicle lights according to embodiments of the present invention have at least the following beneficial effects:

[0007] The light source on the outer side of the light-inlet end of the light guide plate directs light into the light guide plate, and after reflection and refraction, the light is emitted from the front end of the light-outlet area. In this application, the thickness of the light-inlet end is greater than the thickness of the light-outlet area. The larger thickness of the light-inlet end allows for full reception of light source energy and reduces light energy waste. Conversely, the smaller thickness of the light-outlet area of ​​the light guide plate, meaning a thinner light-outlet area, significantly reduces the size and weight of the vehicle headlight and facilitates curved and irregularly shaped designs to meet aesthetic design requirements.

[0008] According to some embodiments of the present invention, a plurality of micropores are formed on the rear end face of the light-emitting region.

[0009] According to some embodiments of the present invention, a plurality of micropores are arranged in an array, and the spacing between two adjacent micropores is 1 mm to 2 mm.

[0010] According to some embodiments of the present invention, the vehicle headlight further includes a light-reflecting film, which is attached to the rear end face of the light-emitting area.

[0011] According to some embodiments of the present invention, a honeycomb reflective layer is formed on the side of the light-emitting area of ​​the light-reflecting film, the honeycomb reflective layer having honeycomb holes with a pore size of less than or equal to 1 μm.

[0012] According to some embodiments of the present invention, the vehicle lamp further includes a light-diffusing film and a light-transmitting mask, the light-diffusing film being attached to the front end face of the light-emitting area, and the light-transmitting mask being mounted on the lamp holder and covering the front end face of the light-diffusing film.

[0013] According to some embodiments of the present invention, the light-diffusing film includes a base layer and a surface layer, the base layer being attached to the front end face of the light-emitting region, the base layer being made of a PET diffusion film, and the surface layer being attached to the front end face of the base layer, the surface layer being made of a microprism light-concentrating film.

[0014] According to some embodiments of the present invention, the light source is located above the light guide plate, the light source includes multiple light sources and is arranged along the length direction of the top surface of the light guide plate, the light guide plate is inclined relative to the vertical plane, and the front end surface of the light guide plate faces upward.

[0015] According to some embodiments of the present invention, the thickness dimension of the light-inlet end is L1, satisfying: 4.5mm≤L1≤5.5mm; and / or, the thickness dimension of the light-outlet area is L2, satisfying: 2.5mm≤L2≤3.5mm.

[0016] A vehicle according to a second aspect embodiment of the present invention includes the headlights described in the first aspect embodiment above.

[0017] The vehicle according to embodiments of the present invention has at least the following beneficial effects:

[0018] The vehicle headlight using the first aspect embodiment of the present invention has a larger thickness at the light-intake end than at the light-outtake end. The larger thickness at the light-intake end allows for full reception of light source energy and reduces light energy waste. Meanwhile, the smaller thickness at the light-outtake end of the light guide plate, i.e., the thinner light-outtake end of the light guide plate, significantly reduces the weight of the vehicle headlight and facilitates curved and irregular designs to meet appearance design requirements.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and some of these additional aspects and advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the overall structure of the vehicle lamp of the present invention;

[0022] Figure 2 for Figure 1 A sectional view;

[0023] Figure 3 This is a schematic diagram of the light guide plate structure;

[0024] Figure 4 This is a schematic diagram of the homogenization film.

[0025] Icon labels:

[0026] Lamp holder 100; Rear decorative cover 101; Front decorative cover 102;

[0027] Light guide plate 200; light inlet end 201; light outlet area 202; micro-hole 203;

[0028] Light source 300;

[0029] 400mm light-reflecting film;

[0030] 500 homogenization film; 501 substrate layer; 502 surface layer;

[0031] Translucent face mask 600. Detailed Implementation

[0032] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0033] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0034] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0035] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0036] The following is for reference. Figures 1 to 4 The invention describes vehicle lights and a vehicle according to embodiments of the present invention.

[0037] like Figures 1 to 4 As shown, a vehicle lamp according to a first aspect embodiment of the present invention includes a lamp holder 100, a light guide plate 200, and a light source 300.

[0038] The lamp holder 100 can be installed on the vehicle body by fasteners. The lamp holder 100 may include a rear decorative cover 101 and a front decorative cover 102. The rear decorative cover 101 and the front decorative cover 102 enclose an installation space, and the front decorative cover 102 forms a clearance channel for light to pass through.

[0039] The light guide plate 200 is mounted on the lamp holder 100, specifically within the mounting space formed between the rear decorative cover 101 and the front decorative cover 102. The light guide plate 200 has a light-inlet end 201 and a light-outlet area 202, the arrangement of which is perpendicular to the thickness direction of the light guide plate 200. The light-inlet end 201 can be formed at one end of the light guide plate 200, for example, the top of the light guide plate 200. The light-inlet end 201 occupies a small area of ​​the light guide plate 200, while the area of ​​the light guide plate 200 excluding the light-inlet end 201 constitutes the light-outlet area 202, which occupies most of the area of ​​the light guide plate 200. The front end face of the light-outlet area 202 allows light to exit, and the clearance channel of the front decorative cover 102 is located in front of the light-outlet area 202, allowing the light emitted from the front end face of the light-outlet area 202 to pass through. The thickness of the light-inlet end 201 is greater than the thickness of the light-outlet area 202.

[0040] The light source 300 is mounted on the lamp holder 100 and is located on the side of the light inlet end 201 away from the light outlet area 202. That is, the light source 300 can be located outside one end of the light guide plate 200 in the width or length direction, and the light source 300 faces the light inlet end 201.

[0041] After the light source 300 on the outer side of the light inlet end 201 of the light guide plate 200 injects light into the light guide plate 200, the light is emitted from the front end face of the light outlet area 202 through reflection and refraction.

[0042] In this application, the thickness of the light-inlet end 201 is greater than the thickness of the light-outlet area 202. The larger thickness of the light-inlet end 201 allows it to fully receive the energy of the light source 300, reducing light energy waste. Meanwhile, the thickness of the light-outlet area 202 of the light guide plate 200 is smaller, meaning the light-outlet area 202 of the light guide plate 200 is thinner. This facilitates curved and irregular surface designs, enhances product quality, meets appearance design requirements, and reduces material costs. Furthermore, since it can fully receive the light energy of the light source 300, it is not necessary to set up too many light sources 300, reducing the cost of the light source 300 and lowering power consumption.

[0043] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, a plurality of micropores 203 are formed on the rear end face of the light-emitting region 202. For example, the micropores 203 can be blind holes, and the aperture of the micropores 203 can be 0.1 mm to 0.2 mm, for example, 0.15 mm.

[0044] Since the light source 300 is located on the side of the light-inlet end 201 away from the light-outlet area 202, that is, the light source 300 is located outside one end of the width or length direction of the light guide plate 200, the light emitted by the light source 300 enters the light guide plate 200 and is reflected by the rear end surface of the light guide plate 200. As a result, most of the light is difficult to exit from the front end surface of the light-outlet area 202 of the light guide plate 200, resulting in poor light guiding effect and poor optical effect of the vehicle headlight.

[0045] In this application, multiple micro-holes 203 are formed on the rear end face of the light-emitting area 202. When the light emitted by the light source 300 enters the light-emitting area 202 of the light guide plate 200, it can achieve directional refraction and reflection through the multiple micro-holes 203 on the rear end face of the light-emitting area 202. This allows most of the light to be emitted from the front end face of the light-emitting area 202 along the thickness direction of the light-emitting area 202, resulting in better light guiding effect and thus better optical effect of the vehicle lamp.

[0046] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, multiple micropores 203 are arranged in an array, with a spacing of 1 mm to 2 mm between two adjacent micropores 203. In this embodiment, the distribution of multiple micropores 203 in this way improves the refraction and reflection of light, thereby enhancing the optical performance of the vehicle headlight.

[0047] In some embodiments of the present invention, the light guide plate 200 may be made of polymethyl methacrylate (PMMA) or polycarbonate (PC), or it may be prepared from a mixture of PMMA and PC. Thus, the light guide plate 200 has a better light guiding effect and can be colorless and transparent, thereby improving the optical effect of the vehicle headlights.

[0048] In some embodiments of the present invention, such as Figure 2 As shown, the headlight also includes a light reflector 400, which is attached to the rear end face of the light-emitting area 202. Since the light source 300 is located on the side of the light-inlet end 201 away from the light-emitting area 202, that is, the light source 300 is located outside one end of the width or length direction of the light guide plate 200, the direction in which the light enters the light guide plate 200 is nearly perpendicular to the orientation of the front end face of the light-emitting area 202. As a result, some light cannot be guided by the light guide plate 200 and will be emitted from the front end face of the light-emitting area 202, resulting in wasted light energy and light leakage.

[0049] In this embodiment, a light-reflecting film 400 is provided on the rear end face of the light-emitting area 202, which can reflect the light leaking from the rear end face of the light-emitting area 202 back into the light guide plate 200. Some of the light is directly reflected out of the front end face of the light-emitting area 202, and some is reflected and refracted through multiple micro-holes 203, and can also be emitted out from the front end face of the light-emitting area 202. In this way, light energy waste and light leakage can be effectively reduced, and the optical effect of the vehicle lamp can be improved.

[0050] In some embodiments of the present invention, such as Figure 2 As shown, a honeycomb-shaped reflective layer is formed on the side of the light-emitting region 202 of the light-reflecting film 400. The honeycomb-shaped reflective layer has honeycomb holes with a hole diameter of less than or equal to 1 μm.

[0051] In this embodiment, a honeycomb-shaped reflective layer is formed on the side of the light-reflecting film 400 near the light-emitting region 202, and the pore size of the honeycomb-shaped reflective layer is less than or equal to 1 μm. This significantly increases the reflectivity of the light-reflecting film 400 and significantly reduces the transmittance, achieving a reflectivity greater than 98%. Furthermore, the surface of the light-reflecting film 400 is roughened by the honeycomb-shaped reflective layer, which can significantly improve the red light extraction efficiency.

[0052] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the vehicle headlight also includes a light-diffusing film 500 and a light-transmitting cover 600. The light-diffusing film 500 is attached to the front end of the light-emitting area 202, and the light-transmitting cover 600 is mounted on the headlight bracket 100 and covers the front end of the light-diffusing film 500.

[0053] In this embodiment, a light-diffusing film 500 is provided, which is attached to the front end surface of the light-emitting area 202. The light-diffusing film 500 can perform a light-diffusing function, allowing light to be emitted more evenly from the front end surface of the light-emitting area 202. In addition, the light-diffusing film 500 can also eliminate moiré fringes and control the light emission angle, thereby improving the optical effect of the vehicle headlight. A light-transmitting mask 600 is provided, which can protect the light guide plate 200, the light-diffusing film 500, and the reflective film without affecting the light emission effect.

[0054] In some embodiments of the present invention, such as Figure 4 As shown, the light-diffusing film 500 includes a base layer 501 and a surface layer 502. The base layer 501 is attached to the front end face of the light-emitting region 202 and is made of PET diffusion film. The surface layer 502 is attached to the front end face of the base layer 501 and is made of microprism light-concentrating film.

[0055] In this embodiment, the base layer 501 of the light-diffusing film 500 is made of PET diffusion film, which is an optical film with a fine porous structure or uneven texture formed on the surface of polyethylene terephthalate (PET) through a special process. The PET diffusion film allows light to undergo multiple path changes when passing through it, ultimately achieving a soft diffusion effect. PET diffusion film has high light transmittance and low reflectivity, which can reduce glare and improve brightness uniformity. PET diffusion film is UV resistant and weather resistant, making it suitable for outdoor use. In addition, PET diffusion film is a recyclable material, which meets the requirements of green and sustainable development.

[0056] In this embodiment, the surface layer 502 of the light-diffusing film 500 is made of a microprism light-concentrating film. The densely arranged microprism units on the surface of the microprism light-concentrating film can cause light to refract and reflect at a specific angle, concentrate the dispersed light to a specific direction, achieve light focusing, and improve light efficiency and visual effect.

[0057] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the light source 300 is located above the light guide plate 200. For example, the light source 300 can be an LED lamp bead. There are multiple light sources 300, which are arranged along the length of the top surface of the light guide plate 200. The light guide plate 200 is inclined relative to the vertical plane, and the front end face of the light guide plate 200 faces upward.

[0058] In this embodiment, multiple light sources 300 are arranged along the length of the top surface of the light guide plate 200. This allows the light entering the light guide plate 200 to be more comprehensive and uniform, resulting in better optical performance of the vehicle headlights. The light guide plate 200 is inclined relative to the vertical plane, with its front end facing upwards. This makes it easier for the light guide plate 200 to receive the light emitted by the light sources 300, and also makes it easier for the light guide plate 200 to refract and reflect the light from the front end of the light emission area 202.

[0059] In some embodiments of the present invention, such as Figure 2As shown, the thickness of the light-intake end 201 is L1, satisfying the condition: 4.5mm ≤ L1 ≤ 5.5mm. For example, the thickness of the light-intake end 201 can be 4.5mm, 5.0mm, 5.5mm, or other suitable dimensions. In this embodiment, the thickness L1 of the light-intake end 201 satisfies: 4.5mm ≤ L1 ≤ 5.5mm. This not only avoids the light-intake end 201 being too thick, thus avoiding material waste and excessive weight of the headlight, but also avoids the light-intake end 201 being too thin, resulting in poor light energy reception.

[0060] In some embodiments of the present invention, such as Figure 2 As shown, the thickness of the light-emitting area 202 is L2, satisfying the condition: 2.5mm ≤ L2 ≤ 3.5mm. For example, the thickness of the light-emitting area 202 can be 2.5mm, 3.0mm, 3.5mm, or other suitable dimensions. In this embodiment, the thickness L2 of the light-intake end 201 satisfies the condition: 2.5mm ≤ L2 ≤ 3.5mm. This not only avoids the light-emitting area 202 being too thick, which would waste material and cause the headlight to be too heavy, or affect the curved and irregular design and fail to meet the appearance design requirements, but also avoids the light-emitting area 202 being too thin, which would reduce the light guiding effect and the structural strength.

[0061] A vehicle according to a second aspect embodiment of the present invention includes the headlights described in the first aspect embodiment.

[0062] For example, vehicle lights can be taillights, headlights, or other suitable vehicle lights.

[0063] According to an embodiment of the present invention, in a vehicle using a headlight according to the first aspect of the present invention, the thickness of the light-intake end 201 is greater than the thickness of the light-emission area 202. The larger thickness of the light-intake end 201 allows for sufficient reception of energy from the light source 300, reducing light energy waste. Meanwhile, the smaller thickness of the light-emission area 202 of the light guide plate 200, i.e., the thinner light-emission area 202 of the light guide plate 200, significantly reduces the size and weight of the headlight and facilitates curved and irregular designs, meeting appearance design requirements.

[0064] It should be noted that since the vehicle can adopt all the technical solutions of the vehicle lights in the first aspect embodiment, it has at least all the beneficial effects brought about by the technical solutions in the first aspect embodiment. These additional beneficial effects will not be elaborated here.

[0065] It is understood that other configurations and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0066] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A vehicle light, characterized in that, include: lamp stand; A light guide plate is installed on the lamp holder. The light guide plate has a light inlet end and a light outlet area. The arrangement direction of the light inlet end and the light outlet area is perpendicular to the thickness direction of the light guide plate. The front end face of the light outlet area is used for light to be emitted. The thickness dimension of the light inlet end is greater than the thickness dimension of the light outlet area. A light source is disposed on the lamp holder and located on the side of the light-inlet end away from the light-outlet area, with the light source facing the light-inlet end.

2. The vehicle light according to claim 1, characterized in that, The rear end face of the light-emitting region has multiple micropores.

3. The vehicle light according to claim 2, characterized in that, The micropores are arranged in an array, and the spacing between two adjacent micropores is 1 mm to 2 mm.

4. The vehicle light according to claim 1, characterized in that, The vehicle lights also include: A light-reflecting film is attached to the rear end face of the light-emitting area.

5. The vehicle light according to claim 4, characterized in that, A honeycomb-shaped reflective layer is formed on the side of the light-emitting area of ​​the light-reflecting film. The honeycomb-shaped reflective layer has honeycomb holes with a pore size of less than or equal to 1 μm.

6. The vehicle light according to claim 1, characterized in that, The vehicle lights also include: A light-diffusing film is attached to the front end face of the light-emitting area; A light-transmitting mask is installed on the lamp holder and covers the front end of the light-diffusing film.

7. The vehicle light according to claim 6, characterized in that, The light-diffusing film includes: A substrate layer is attached to the front end face of the light-emitting area, and the substrate layer is made of PET diffusion film; A surface layer, which is attached to the front end face of the base layer, is made of a microprism focusing film.

8. The vehicle light according to claim 1, characterized in that, The light source is located above the light guide plate. The light source includes multiple light sources and is arranged along the length of the top surface of the light guide plate. The light guide plate is inclined relative to the vertical plane, and the front end of the light guide plate faces upward.

9. The vehicle light according to claim 1, characterized in that, The thickness of the light-inlet end is L1, satisfying: 4.5mm ≤ L1 ≤ 5.5mm; and / or, The thickness of the light-emitting region is L2, which satisfies the following condition: 2.5mm≤L2≤3.5mm.

10. A vehicle, characterized in that, Includes the vehicle lights as described in any one of claims 1 to 9.

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