Lighting device and vehicle

Abstract

The utility model relates to a lighting device and a vehicle. The lighting device comprises a lens and a decorating part arranged in front of the lens, the lens comprises a light transmission part arranged in a middle area and a flanging part arranged in an edge area, the light transmission part is made of light-transmitting materials, and the flanging part is turned to the side away from the decorating part. The decorating part comprises a light-transmitting part right facing the light-transmitting part and a non-light-transmitting part surrounding the flanging part. According to the scheme, the risk that the dark area in the lighting device is observed from the side where the decorating part is located can be reduced.

Description

Technical Field

[0001] The present application relates to the field of lighting technology, and in particular to a lighting device and a vehicle. Background Art

[0002] In the field of automotive lighting, ensuring the optical uniformity of lighting devices is a key technology. Uniform light distribution can improve the visibility and recognition of the vehicle, which is not only related to aesthetics, but more importantly, it improves driving safety. Summary of the invention

[0003] The present application provides a lighting device and a vehicle, which can reduce the risk of observing a dark area in the lighting device from the side where the decorative component is located.

[0004] A lighting device comprises a lens and a decorative piece arranged in front of the lens, wherein the lens comprises a light-transmitting portion arranged in a middle area and a flanged portion arranged in an edge area, the light-transmitting portion is made of a light-transmitting material, the flanged portion is flanged to a side away from the decorative piece, and the decorative piece comprises a light-transmitting portion facing the light-transmitting portion and a non-light-transmitting portion surrounding the flanged portion.

[0005] Optionally, a front-to-rear spacing between the light transmission portion and the light-transmitting portion is smaller than a thickness of the light transmission portion.

[0006] Optionally, the front-to-back spacing is set to 2 mm to 5 mm.

[0007] Optionally, the thickness of the light transmission portion is set to 3 mm to 10 mm.

[0008] Optionally, at least a lower portion of the flange portion is in contact with the non-light-transmitting portion.

[0009] Optionally, the light transmission portion includes a light incident side for light to be incident on and a light exiting side for light to be transmitted out, and a plurality of light incident side optical units are formed on the light incident side.

[0010] Optionally, the light incident side optical unit is configured as a lattice structure of 1 mm×1 mm to 5 mm×5 mm.

[0011] Optionally, a plurality of light-exiting side optical units are formed on the light-exiting side.

[0012] Optionally, the light-exiting-side optical unit is configured as a lattice structure of 1 mm×1 mm to 5 mm×5 mm.

[0013] Optionally, a first surface of the light-transmitting portion facing the light-emitting side and / or a second surface of the light-transmitting portion facing away from the light-emitting side is provided with an uneven optical texture.

[0014] A vehicle comprises any one of the lighting devices described above.

[0015] The present application provides a lighting device and a vehicle, wherein the light-transmitting portion of the lens is directly opposite to the light-transmitting portion of the decorative element, and the flange portion of the lens is turned toward a side away from the decorative element. In this arrangement, the flange portion can be used to shield part of the non-light-transmitting portion, thereby reducing the risk of observing a dark area in the lighting device from the side where the decorative element is located. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a lighting device shown in an exemplary embodiment of the present application;

[0017] Figure 2 is a schematic diagram of a base surface of a reflector provided with a plurality of reflective units;

[0018] Figure 3 is an enlarged view of multiple reflection units;

[0019] Figure 4 yes Figure 1 A cross-sectional view of the lens shown in FIG.

[0020] Figure 5 is an enlarged view of the optical unit on the light incident side;

[0021] Figure 6 is an enlarged view of the optical unit on the light-emitting side;

[0022] Figure 7 It is a schematic diagram of the decorative part;

[0023] Figure 8 yes Figure 1 A cross-sectional view of the reflector is shown in FIG. DETAILED DESCRIPTION

[0024] Here, the technical solutions in the embodiments (or "implementations") of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0025] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0026] Please refer to Figure 1 , Figure 1 is a cross-sectional view of an illumination device 100 according to an exemplary embodiment of the present application.

[0027] The present application provides a lighting device 100, which includes a rear shell 10, a front cover 20, a reflector 30 and a lens 40. The rear shell 10 is arranged at the rearmost end of the lighting device 100 and is made of a non-light-transmitting material. The front cover 20 is arranged at the frontmost end of the lighting device 100 and is made of a light-transmitting material. The light emitted by the light source is finally emitted from the front cover 20. The rear shell 10 and the front cover 20 are fixedly connected to each other and together form a receiving space 101. The rear shell 10 and the front cover 20 can be fixed by bonding, but are not limited thereto.

[0028] The lighting device 100 also includes a light source, a reflector 30 and a lens 40 contained in the accommodating space 101. The reflector 30 and the lens 40 can be respectively bonded and fixed to the rear housing 10, but are not limited thereto. The reflector 30 is located behind the lens 40 and is used to reflect the light emitted by the light source to the lens 40. The reflector 30 can be provided with a coating on the surface by a vacuum aluminum plating process. The reflector 30 cooperates with the lens 40 to jointly enclose a light reflection space 102. The light source can be an LED light source provided on the circuit board 50, but is not limited thereto.

[0029] Please combine Figures 1 to 4 , Figure 2 It is a schematic diagram showing that a plurality of reflection units 32 are provided on a base surface 31 of a reflector 30 . Figure 3 is an enlarged view of the plurality of reflection units 32 . Figure 4 yes Figure 1 A cross-sectional view of lens 40 is shown in FIG.

[0030] The reflector 30 includes a base surface 31 and a plurality of reflective units 32 disposed on the base surface 31. Each reflective unit 32 can be configured as a 2mm×2mm to 5mm×5mm square reflective unit, but is not limited thereto. The base surface 31 is a concave arc surface, and each reflective unit 32 includes a reflective surface 320, which is a convex surface.

[0031] exist Figure 1 In the embodiment shown, the circuit board 50 is arranged above the reflector 30, an LED light source is arranged on the circuit board 50, and a light-transmitting hole 33 is arranged in the non-reflective area on the top of the reflector 30 (refer to Figure 2 ), the light emitted by the LED light source on the circuit board 50 can be irradiated onto the reflective surface 320 of the plurality of reflective units 32 through the light-transmitting holes 33. This method can prevent the LED light source from being observed from the front of the lighting device 100, thereby preventing the occurrence of optical bright spots. In one embodiment, the base surface 31 is a concave parabola, and the equation of the base surface 31 is: But it’s not limited to that.

[0032] like Figure 2 As shown, there can be multiple light-transmitting holes 33, and the LED light source on the circuit board 50 can be arranged in multiple sections, and the multiple sections of LED light sources are arranged in a one-to-one correspondence with the multiple light-transmitting holes 33. Multiple reflection units 32 are distributed in groups, and there are multiple groups in total. In the area corresponding to each section of the LED light source, multiple reflection units 32 are arranged in a group below the light-transmitting hole 33, and a group of reflection units 32 forms a strip-shaped reflection area A, so that large-area lighting is achieved. In addition, the multiple sections of LED light sources can be flexibly arranged according to the frame shape of the lighting device 100, for example, arranged along the outer contour of the front cover 20 to ensure that there is no dark area in the lighting device 100 when it is lit. It should also be noted that due to the concave direction of the base surface 31, the multiple strip-shaped reflection areas A are displaced from each other front to back, and an optical reflective material can also be provided on the surface 34 formed after the dislocation, so that the surface 34 has the ability to reflect light.

[0033] The lens 40 includes a light transmission portion 401 disposed in the middle area, the light transmission portion 401 is made of a light-transmitting material, the lens 40 includes a light incident side 41 and a light emitting side 42, the light incident side 41 faces the plurality of reflection units 32 for light input, and the light incident side 41 is formed with a plurality of light incident side optical units 410, and the plurality of light incident side optical units 410 together form a patterned optical texture on the light incident side 41. Each light incident side optical unit 410 can be set as a 1mm×1mm to 5mm×5mm grid-shaped optical unit, but is not limited thereto. The light emitting side 42 is for light to be emitted. In one embodiment, the base surface of the light incident side 41 of the lens 40 is a concave arc surface, the base surface of the light emitting side 42 of the lens 40 is a convex arc surface, and the thickness between the light incident side 41 and the light emitting side 42 of the lens 40 is uniform.

[0034] According to the above description, the base surface 31 of the emitting mirror 30 is a concave arc surface, and the light emitted by the light source can be reflected to the lens 40 through the multiple reflection units 32 formed on the base surface 31, and the reflection surfaces 320 of the multiple reflection units 32 are convex surfaces, which enables the multiple reflection surfaces 320 to reflect the light to every corner of the light reflection space 102. In addition, the lens 40 is also formed with multiple light-incident side optical units 410 on the light-incident side 41 facing the multiple reflection units 32. The multiple light-incident side optical units 410 can refract the light reflected from the multiple reflection surfaces 320, and then can emit the light incident from different directions along different optical paths, further dispersing the light, thereby achieving large-angle lighting and more uniform brightness of the lighting device 100.

[0035] The specific manner in which the reflective surface 320 is convex is not limited. In one embodiment, the reflective surface 320 is configured as an arc-shaped convex surface in which the central area protrudes from the edge area. With such a configuration, the reflective surface 320 is a smoothly transitioned arc-shaped curved surface. When light is projected onto the reflective surface 320, due to the different normal planes at various parts of the reflective surface 320, the reflected light can be transmitted along multiple different light paths, and the light dispersion and uniformity are better. Of course, in some other embodiments, the reflective surface 320 can also be a convex surface of other shapes, including but not limited to a truncated cone convex surface, a truncated pyramid convex surface, etc.

[0036] like Figure 1 and Figure 4 As shown, the lens 40 further includes a flange portion 402 disposed in the edge region, the flange portion 402 extends toward the reflector 30, and forms a matching gap 103 with the reflector 30, so as to ensure that the reflector 30 and the lens 40 are spaced at an appropriate distance. The thickness of the flange portion 402 is less than the thickness between the light incident side 41 and the light exit side 42, thereby making the wall thickness of the lens 40 unequal.

[0037] Please refer to Figure 5 , Figure 5 It is an enlarged view of the light-incident-side optical unit 410 .

[0038] In one embodiment, each of the light-entering side optical units 410 is provided with a light-entering surface 4100 facing the reflecting surface 320. Thus, the plurality of light-entering side optical units 410 have a plurality of light-entering surfaces 4100, and each of the light-entering surfaces 4100 is a concave surface. When the reflected light is directed toward the light-entering surface 4100, the light-entering surface 4100 can not only diverge the light and reduce the light loss through the concave structure, but also further refract the light to different directions, thereby further dispersing the light, so as to form more optical paths and realize large-angle uniform light.

[0039] exist Figure 5 In the embodiment shown, the light incident surface 4100 is configured as an arc-shaped concave surface with a central area 4100A concave from the surrounding edge areas 4100B. The concave surface is a smoothly transitioned arc-shaped curved surface, which not only allows light to be refracted along multiple different light paths to the light exit side 42, but also reduces light loss and ensures uniform light.

[0040] Please combine Figure 4 and Figure 6 , Figure 6 It is an enlarged view of the light-exiting-side optical unit 420 .

[0041] In one embodiment, the light-exiting side 42 is formed with a plurality of light-exiting side optical units 420, and the plurality of light-exiting side optical units 420 together form a patterned optical texture on the light-exiting side 42. With such a configuration, light incident from the light-incident side 41 can be emitted through the plurality of light-exiting side optical units 420, and the plurality of light-exiting side optical units 420 also have the function of dispersing light, which is conducive to achieving a uniform light effect.

[0042] exist Figure 6 In the illustrated embodiment, each of the light-exiting side optical units 420 includes a light-exiting surface 4200. Thus, the plurality of light-exiting side optical units 420 have a plurality of light-exiting surfaces 4200, and each of the light-exiting surfaces 4200 is a convex surface. The convex light-exiting surface 4200 can increase the area of ​​each light-exiting surface 4200, and the light-exiting direction is more dispersed, which is conducive to reducing dark areas and achieving a better light-homogenizing effect.

[0043] The specific implementation of the light-emitting surface 4200 being a convex surface is not limited. In an optional embodiment, the light-emitting surface 4200 is set as a convex arc surface in which the central area 4200A protrudes from the surrounding edge areas 4200B. The convex arc surface is a smooth transition surface, and the light loss of the light coming out of the convex arc surface is small, the refracted light paths are more, and the light uniformity effect is better.

[0044] Please combine Figure 1 and Figure 7 , Figure 7 is a schematic diagram of a decorative element 60 .

[0045] In one embodiment, the lighting device 100 further includes a decorative piece 60 accommodated in the storage space 101, the decorative piece 60 includes a light-transmitting portion 61, the light-transmitting portion 61 is made of a light-transmitting material, the light-transmitting portion 61 is directly opposite to the light-emitting side 42 of the light-transmitting portion 401, and the light-transmitting portion 61 has a first surface facing the light-emitting side 42 and / or a second surface facing away from the light-emitting side 42 provided with an uneven optical texture 610. The concave depth or convex height of the optical texture 610 can be set to 20um to 50um, and the optical texture 610 can be integrally formed on the light-transmitting portion 61 by an injection molding process. The uneven optical texture can increase the roughness of the first surface and / or the second surface of the light-transmitting portion 61. The light passing through the light-transmitting portion 61 can be further dispersed through refraction and reflection of the optical texture 610 to improve large-angle lighting and optical uniformity. In particular, when the lighting device 100 is in a static non-lit state, the light-transmitting portion 61 can be white, so that the internal components can be avoided from being seen from the outside of the decorative part 60, and the overall appearance is more beautiful. The light passing through the light-transmitting portion 61 is finally emitted through the front cover 20. It should be noted that the optical texture 610 can be on the first surface of the light-transmitting portion 61 facing the light-emitting side 42, or the optical texture 610 can be set on the second surface of the light-transmitting portion 61 facing away from the light-emitting side 42, or the optical texture 610 can be set on the first surface and the second surface, which can be selected according to actual needs.

[0046] In one embodiment, Figure 1 and Figure 7 As shown, the decorative member 60 further includes a non-light-transmitting portion 62 arranged around the light-transmitting portion 61, and the non-light-transmitting portion 62 surrounds the periphery of the matching gap 103 between the reflector 30 and the lens 40. The non-light-transmitting portion 62 is used to shield the matching gap 103 to prevent light leakage. The light-transmitting portion 61 and the non-light-transmitting portion 62 can be integrally formed by two-color injection molding, but are not limited thereto.

[0047] In one embodiment, the front-to-back spacing between the light-transmitting portion 401 and the light-transmitting portion 61 is smaller than the thickness of the light-transmitting portion 401. The "thickness of the light-transmitting portion 401" mentioned here refers to the thickness between the light-entering side 41 and the light-exiting side 42 of the light-transmitting portion 401. In this configuration, when the front-to-back spacing between the light-transmitting portion 401 and the light-transmitting portion 61 is small, the flange portion 402 can be used to shield part of the non-light-transmitting portion 62, thereby reducing the risk of observing the dark area inside the lighting device 100 from the side where the decorative member 60 is located when the lighting device 100 is in the lit or unlit state.

[0048] In an optional embodiment, the front-to-back spacing is set to 2 mm to 5 mm. For example, it can be 2 mm, 3 mm, 4 mm, or 5 mm. In a specific embodiment, the front-to-back spacing can be set to 2 mm.

[0049] In an optional embodiment, the thickness of the light transmission part 401 is set to 3 mm to 10 mm, such as 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm. In a specific embodiment, the thickness of the light transmission part 401 can be set to 5 mm.

[0050] Please combine Figure 1 , Figure 4 and Figure 7 The lens 40 further includes a flange portion 402 disposed in the edge region, the non-light-transmitting portion 62 is surrounded by the periphery of the flange portion 402, and the flange portion 402 is turned toward the side away from the decorative member 60. In one embodiment, at least the lower portion of the flange portion 402 is in contact with the non-light-transmitting portion 62. In this way, the gap between the lower portion of the flange portion 402 and the non-light-transmitting portion 62 can be reduced, so that part of the flange portion 402 can better shield the non-light-transmitting portion 62.

[0051] In one embodiment, the multiple groups of LED light sources are configured to be individually controllable. For example, the multiple groups of LED light sources can be turned on or off in sequence, so that a flowing water effect can be presented. In another embodiment, each group of LED light sources is provided with a first light-emitting mode and a second light-emitting mode, and the brightness of the LED light source in the first light-emitting mode is different from the brightness of the LED light source in the first light-emitting mode. For example, the multiple groups of LED light sources are lit together, and the brightness changes from dark to strong, so that a breathing effect can be presented. In the present application, the lighting device 100 can present both a flowing water effect and a breathing effect to meet the needs of welcoming guests.

[0052] Please refer to Figure 8 , Figure 8 for Figure 1 A cross-sectional view of the reflector 30 is shown in FIG.

[0053] The distance between the reflector 30 and the lens 40 needs to be set in consideration of the aspect ratio and the opening angle of the reflector 30. In one embodiment, the aspect ratio of the width D to the depth W of the reflector 30 is less than 1:2, and the opening angle а of the reflector 30 is not less than 35°, so as to ensure a wide angle and uniform light effect.

[0054] The present application also provides a vehicle, which includes the lighting device 100 described above. The vehicle can be a fuel vehicle or a new energy vehicle. The lighting device 100 can be installed at the front end of the vehicle body as a left front light or a right front light, or can be installed at the rear end of the vehicle body as a left rear light or a right rear light. The lighting device 100 can be fixedly installed on the vehicle body through the rear shell 10, and the installation method includes but is not limited to bolt connection.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A lighting device, characterized in that: The invention comprises a lens and a decorative piece arranged in front of the lens, wherein the lens comprises a light transmission part arranged in the middle area and a flange part arranged in the edge area, the light transmission part is made of a light-transmitting material, the flange part is turned toward a side away from the decorative piece, and the decorative piece comprises a light-transmitting part facing the light-transmitting part and a non-light-transmitting part surrounding the flange part.

2. The lighting device according to claim 1, characterized in that: A front-to-rear distance between the light transmission portion and the light-transmitting part is smaller than a thickness of the light transmission portion.

3. The lighting device according to claim 2, characterized in that: The front-to-back spacing is set to 2 mm to 5 mm; and / or The thickness of the light transmission part is set to 3 mm to 10 mm.

4. The lighting device according to claim 1, characterized in that: At least the lower side portion of the flange portion is in contact with the non-light-transmitting portion.

5. The lighting device according to any one of claims 1 to 4, characterized in that: The light transmission part includes a light incident side for light to be incident on and a light exit side for light to be transmitted out, and a plurality of light incident side optical units are formed on the light incident side.

6. The lighting device according to claim 5, characterized in that: The light incident side optical unit is configured as a lattice structure of 1 mm×1 mm to 5 mm×5 mm.

7. The lighting device according to claim 5, characterized in that: A plurality of light-exiting side optical units are formed on the light-exiting side.

8. The lighting device according to claim 7, characterized in that: The light-exiting-side optical unit is configured as a lattice structure of 1 mm×1 mm to 5 mm×5 mm.

9. The lighting device according to claim 5, characterized in that: A first surface of the light-transmitting portion facing the light-emitting side and / or a second surface of the light-transmitting portion facing away from the light-emitting side is provided with an uneven optical texture.

10. A vehicle, characterized in that: The invention comprises a lighting device as claimed in any one of claims 1 to 9.

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