A type of lamp and vehicle

Abstract

This utility model relates to a lamp and a vehicle, specifically to the field of vehicle lighting technology, and aims to solve the problem of how to improve the uniformity of light emission from a light source and enhance its decorative effect. The lamp includes a light source, a reflector, a light guide, a light equalizer, and a decorative pattern layer. The reflector is located on one side of the light source; the light guide includes an incident surface and an exiting surface, the incident surface being opposite to the light source, at least a portion of the light guide being located on the reflective side of the reflector, and the exiting surface being disposed on a portion of the light guide on the reflective side, with the exiting surface facing the reflector; the light equalizer is located on the side of the light guide opposite to the reflector; the decorative pattern layer is disposed on the side of the light equalizer opposite to the light guide.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, specifically to a lighting fixture and a vehicle. Background Technology

[0002] As a crucial component of a vehicle, its lighting enhances the overall appearance and increases vehicle visibility. Traditional automotive lights encompass illumination and signaling functions, primarily designed for safety, with relatively weak decorative effects. To improve aesthetics, patterned layers can be incorporated within the light fixture, and the pattern is displayed when illuminated by a light source, thus enhancing the decorative effect. However, current technologies suffer from low light uniformity, resulting in poor pattern display. Utility Model Content

[0003] The purpose of this utility model is to provide a lamp and a vehicle that aims to solve the problem of how to improve the uniformity of light output and enhance the decorative effect.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] In a first aspect, a luminaire is provided for use in a vehicle. The luminaire includes a light source, a reflector, a light guide, a light diffuser, and a decorative pattern layer. The reflector is located on one side of the light source. The light guide includes an incident surface and an exiting surface, the incident surface facing the light source. At least a portion of the light guide is located on the reflective side of the reflector, and the exiting surface is located on the reflective side of the light guide, facing the reflector. The light diffuser is located on the side of the light guide opposite to the reflector. The decorative pattern layer is located on the side of the light diffuser opposite to the light guide.

[0006] The light fixture provided in this application transmits light emitted by the light source to the reflector through the light guide, and then reflects the light to the light homogenizer for light homogenization. This can improve the uniformity of the light and enhance the appearance of the light after passing through the decorative pattern layer, thereby improving the decorative effect.

[0007] In some optional embodiments, the light guide includes a first light guide strip and a plurality of second light guide strips. The light-incident surface is disposed on the first light guide strip, and the plurality of second light guide strips are located on the reflective side of the reflector. The plurality of second light guide strips are arranged at intervals and connected to the first light guide strip, and the reflective surface is disposed on the plurality of second light guide strips. In this way, light is received through the first light guide strip and distributed to the reflector in a substantially uniform manner through the plurality of second light guide strips, so as to accurately distribute the light to the target area, thereby improving the uniformity of light output, improving the lighting effect and visibility of the lamp, and reducing light waste.

[0008] In some alternative implementations, the light source includes multiple light source units arranged in a row, with the extension direction of the first light guide strip aligned with the arrangement direction of the multiple light source units; the light incident surface of the first light guide strip is opposite to the multiple light source units. In this way, the uniformity of the emitted light can be further improved by using multiple light source units.

[0009] In some alternative embodiments, multiple second light guide strips are arranged along the extension direction of the first light guide strip. This structure is simple, easy to form, and can evenly disperse light to the reflector to improve the uniformity of light output. At the same time, the light reflected by the reflector can pass through the gap between two adjacent second light guide strips to ensure the light output intensity.

[0010] In some alternative embodiments, the reflective surface of the reflector includes a curved surface with a parabolic profile. This curved surface can initially converge and reflect the light transmitted from the light guide, causing it to propagate in a specific direction.

[0011] In some alternative implementations, the extension directions of the plurality of second light guides are adapted to the reflective surface of the reflector. This structure helps to ensure structural compactness.

[0012] In some alternative implementations, the light-emitting surface is provided with optical teeth.

[0013] In some alternative embodiments, the decorative pattern layer includes a dark layer with translucent patterned areas. This structure is simple and easy to mold.

[0014] In some alternative embodiments, the luminaire further includes a mounting frame to which the light source, the reflector, the light guide, and the light diffuser are all fixed. This allows the light source, reflector, light guide, and light diffuser to be integrated within the mounting frame for easier transport.

[0015] Secondly, a vehicle is also provided, comprising a vehicle body and a lamp as described in any of the above technical solutions, the lamp being disposed on the vehicle body. Since the vehicle provided in this application includes the lamp as described in any of the above embodiments, both can solve the same technical problem and achieve the same effect.

[0016] The beneficial effects of this utility model are:

[0017] 1. By using light guides, reflectors, and light homogenizers, the deviation and unevenness of light can be effectively reduced, making the light emitted by the decorative lights more uniform in the target area and improving the signal recognition.

[0018] 2. By designing the light guide as a structure consisting of a first light guide strip and multiple second light guide strips, the light can be precisely distributed to the target area, improving the lighting effect and visibility of the decorative light and reducing light waste. Attached Figure Description

[0019] Figure 1 This is an exploded structural diagram of a lamp provided in some embodiments of this application.

[0020] Figure label:

[0021] 10. Lighting fixtures;

[0022] 1. Light source; 11. Circuit board; 12. Light source unit; 2. Reflector; 3. Light guide; 3a. Light incident surface; 3b. Light emitting surface; 31. First light guide strip; 32. Second light guide strip; 4. Light homogenizer; 5. Decorative pattern layer; 6. Mounting frame. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0024] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0025] In some embodiments, please refer to Figure 1 This application provides a lamp 10 that can be applied to a vehicle. Specifically, the lamp 10 can be used as a headlight, taillight, or interior light of a vehicle. This application uses the lamp as an example for the application of a vehicle headlight.

[0026] The luminaire 10 may include a light source 1, a reflector 2, a light guide 3, a light diffuser 4, and a decorative pattern layer 5.

[0027] In some embodiments, the light source 1 may include a circuit board 11 and a light source unit 12 disposed on the circuit board. Optionally, the light source unit 12 may be an LED light source. LED light sources have advantages such as high luminous efficiency, low energy consumption, and long lifespan. Moreover, the light-emitting chip of the LED light source is specially designed to precisely control the emission angle and light intensity distribution, providing a good foundation for subsequent optical processing. Of course, in other embodiments, the light source 1 may also be an OLED, etc., and this application does not limit it.

[0028] The reflector 2 is located on one side of the light source 1. The reflector 2 is used to reflect the light emitted by the light source 1.

[0029] The light guide 3 includes an incident light surface 3a and an exit light surface 3b. The incident light surface 3a faces the light source 1. At least a portion of the light guide 3 is located on the reflective side of the reflector 2. The exit light surface 3b is located on the reflective side of the light guide 3 and faces the reflector 2. In this way, the light guide 3 can guide the light emitted by the light source 1 to the reflector 2 and be reflected by the reflector 2.

[0030] In some embodiments, the reflective surface of the reflective element 2 may be provided with a reflective structure such as an aluminum layer, which can be formed by electroplating to improve the light reflection efficiency and reduce light energy loss.

[0031] The reflective surface can be a plane or other surfaces. In some embodiments, the reflective surface may include a curved surface with a parabolic profile. This curved surface can initially converge and reflect the light transmitted from the light guide 3, causing it to propagate in a specific direction.

[0032] In some embodiments, the reflective surface may also include a freeform surface, which can be precisely designed according to the specific application scenario and light distribution requirements of the luminaire, and can further shape and control the light to achieve a more uniform distribution of light in the target area.

[0033] In some embodiments, the edge of the reflector 2 may be provided with a light-shielding structure, which can effectively block light leakage and make the light boundary uniform. The light-shielding structure can be a light-shielding tape or an ink layer. In some embodiments, the light-shielding structure can be, for example, a rib structure.

[0034] In some embodiments, the material of the light guide 3 can be optical-grade PC, and the light guide 3 can be produced using high-precision molds to ensure the surface gloss and light transmittance of the light guide 3. In some embodiments, the light-emitting surface can be provided with optical teeth, and the light propagates along the direction of the optical teeth, which can ensure the light emission efficiency. This structure is simple, the processing technology is mature, and it is easy to implement.

[0035] The light-diffusing element 4 is located on the side of the light guide element 3 that is opposite to the reflector element 2. The light-diffusing element 4 is used to even out the light and improve uniformity.

[0036] In some embodiments, the light-diffusing component 4 may include a PC plastic component with added diffusing agent. Optionally, the light-diffusing component 4 may be formed by injection molding. The diffusing agent inside can cause diffuse reflection and refraction of light, making the internal light distribution more uniform, projecting more uniform light, and reducing defects such as bright spots and dark spots.

[0037] In some embodiments, please refer to Figure 1The decorative pattern layer 5 is located on the side of the light-diffusing element 4 that is opposite to the light guide element 3. The decorative pattern layer 5 can form a pattern to enhance the decorative performance of the lamp.

[0038] The light fixture provided in this application transmits light emitted from the light source 1 through the light guide 3 to the reflector 2, and is then reflected by the reflector 2 to the light homogenizer 4 for light homogenization. This improves the uniformity of the light and enhances the appearance of the light after passing through the decorative pattern layer 5, thereby improving the decorative effect.

[0039] The light guide 3 can have various structures, such as a mesh or strip. For some embodiments, please refer to... Figure 1 The light guide 3 may include a first light guide strip 31 and multiple second light guide strips 32. An incident light surface 3a is disposed on the first light guide strip 31, and the multiple second light guide strips 32 are located on the reflective side of the reflector 2, with the multiple second light guide strips 32 arranged at intervals and connected to the first light guide strip 31. A reflective surface 3b is disposed on the multiple second light guide strips 32. In this way, light is received through the first light guide strip 31 and distributed approximately evenly to the reflector 2 through the multiple second light guide strips 32, accurately distributing the light to the target area. This improves the uniformity of light output, enhances the lighting effect and visibility of the lamp, and reduces light waste.

[0040] In some embodiments, the light source 1 may include a plurality of light source units 12, which may all be disposed on the circuit board 11. The plurality of light source units 12 are arranged in a row, and the extension direction of the first light guide strip 31 is consistent with the arrangement direction of the plurality of light source units 12. The light incident surface of the first light guide strip 31 is opposite to the plurality of light source units 12. In this way, the uniformity of light output can be further improved by using the plurality of light source units 12.

[0041] In some embodiments, a plurality of second light guide strips 32 are arranged along the extending direction of the first light guide strip 31. This structure is simple, easy to form, and can evenly disperse light to the reflector 2 to improve the uniformity of light output. At the same time, the light reflected by the reflector 2 can pass through the gap between two adjacent second light guide strips 32 to ensure the light output intensity.

[0042] In some embodiments, the extension paths of the plurality of second light guides 32 are adapted to the reflective surface of the reflector 2. In other words, along the extension direction of the plurality of second light guides 32, the distances from each position of the plurality of second light guides 32 to the reflective surface of the reflector 2 are approximately equal. Thus, if the reflective surface of the reflector 2 is planar, the plurality of second light guides 32 extend along a straight line; if the reflective surface of the reflector 2 is curved, the plurality of second light guides 32 extend along a curve. This structure helps to ensure the compactness of the structure.

[0043] In some embodiments, the decorative pattern layer 5 may include a dark layer, the color of which may be black, gray, blue, etc., and the dark layer may be, for example, paint. Dark refers to a color with a light intensity of less than 0. The dark layer has a light-transmitting pattern area, which may be a gap area or a transparent solid structure; this application does not specifically limit this.

[0044] In some embodiments, the translucent pattern area can be a gap area, which can be formed by laser engraving. In this way, light passing through the decorative pattern layer 4 reveals the pattern corresponding to the decorative pattern layer 4, enhancing the decorative effect. This structure is simple and easy to process.

[0045] In some embodiments, the surface of the light-diffusing element 4 facing the reflector 2 is provided with a light-shielding structure around the gap. This light-shielding structure can be, for example, a rib structure, which can make the light boundary uniform and reduce light scattering.

[0046] In some embodiments, the decorative pattern layer 5 may be disposed on the light-emitting surface of the light-diffusing element 4. Of course, in other embodiments, the decorative pattern layer 5 may also be disposed on the light-incident surface of the light-diffusing element 4, or simultaneously disposed on both the light-incident surface and the light-emitting surface of the light-diffusing element 4. This application does not specifically limit this.

[0047] In some embodiments, please refer to Figure 1 The lamp 10 also includes a mounting frame 6, to which the light source 1, reflector 2, light guide 3, and light diffuser 4 are all fixed. This allows the light source 1, reflector 2, light guide 3, and light diffuser 4 to be integrated via the mounting frame 6 for convenient transportation.

[0048] This application also provides a vehicle that may include a vehicle body and a lamp as described in any of the above embodiments, the lamp being disposed on the vehicle body.

[0049] Since the vehicle provided in this application includes the lighting fixtures described in any of the above embodiments, both can solve the same technical problem and achieve the same effect.

[0050] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lamp for use in a vehicle, characterized in that, include: Light source (1); A reflector (2) is located on one side of the light source (1); A light guide (3) includes a light-incident surface (3a) and a light-exit surface (3b). The light-incident surface (3a) is opposite to the light source (1). At least a portion of the light guide (3) is located on the reflective side of the reflector (2). The light-exit surface (3b) is a portion of the light guide (3) on the reflective side and faces the reflector (2). The light-diffusing element (4) is located on the side of the light guide element (3) that is opposite to the reflector element (2); A decorative pattern layer (5) is disposed on the side of the light-diffusing element (4) opposite to the light guide element (3).

2. The lamp according to claim 1, characterized in that, The light guide (3) includes a first light guide strip (31) and a plurality of second light guide strips (32). The light incident surface (3a) is disposed on the first light guide strip (31). The plurality of second light guide strips (32) are located on the reflective side of the reflective element (2). The plurality of second light guide strips (32) are arranged at intervals and connected to the first light guide strip (31). The reflective surface is disposed on the plurality of second light guide strips (32).

3. The lamp according to claim 2, characterized in that, The light source (1) includes multiple light source units (32), which are arranged in a row. The extension direction of the first light guide strip (31) is consistent with the arrangement direction of the multiple light source units. The light incident surface (3a) of the first light guide strip (31) is opposite to the multiple light source units.

4. The lamp according to claim 2, characterized in that, The plurality of second light guide strips (32) are arranged along the extension direction of the first light guide strip (31).

5. The lamp according to claim 2, characterized in that, The reflective surface of the reflective element (2) includes a curved surface, and the outline of the curved surface is a parabola.

6. The lamp according to claim 2, characterized in that, The extension paths of the plurality of second light guides (32) are adapted to the reflective surface of the reflector (2).

7. The lamp according to claim 1, characterized in that, The light-emitting surface (3b) is provided with optical teeth.

8. The lamp according to claim 1, characterized in that, The decorative pattern layer (5) includes a dark layer with a light-transmitting pattern area.

9. The lamp according to claim 1, characterized in that, It also includes a mounting frame (6), and the light source (1), the reflector (2), the light guide (3) and the light homogenizer (4) are all fixed to the mounting frame (6).

10. A vehicle, characterized in that, It includes a vehicle body and a lamp as described in any one of claims 1-9, wherein the lamp is disposed on the vehicle body.

Images