Lighting system of vehicle lamp and vehicle lamp

Abstract

The present invention relates to a lighting system for a vehicle lamp and the vehicle lamp, comprising: a second light source; a second light guide for collimating and emitting light from the second light source; a first light source; and a first light guide, wherein the first light guide includes a first coupling surface and a second coupling surface, wherein the first coupling surface includes a transmissive surface for transmitting light from the second light source emitted from the second light guide, so that the light from the second light source emitted from the second light guide can be emitted from the second coupling surface; and a reflective surface for reflecting light from the first light source incident on the first light guide, so that the light from the first light source incident on the first light guide can be emitted from the second coupling surface. This system has the advantage of enabling the first and second light sources to be independently illuminated to meet regulatory requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of optical systems, and in particular to a lighting system of a vehicle lamp and the vehicle lamp. Background Art

[0002] LED light sources are increasingly being used in vehicle lighting, which offers significant advantages such as fast response, low energy consumption, and stable color. To achieve the diverse functions of vehicle lighting, different cavities are typically used for each function. This approach addresses regulatory issues, but the need to integrate all functions into one unit inevitably necessitates significant vehicle body space. However, with the current trend toward flatter vehicle bodies, this approach presents significant shortcomings in practical applications. Summary of the Invention

[0003] Based on this, it is necessary to address the problem that the lighting system of existing vehicle lamps needs to occupy a large amount of vehicle body space to realize multiple functions, and provide a lighting system for vehicle lamps and a vehicle lamp, which can set two light sources in one cavity, and the two light sources can independently realize the lighting function without interfering with each other, so as to improve the utilization rate of the vehicle body space.

[0004] A lighting system for a vehicle lamp, characterized by comprising:

[0005] a first light source;

[0006] a first light guide comprising a first coupling surface and a second coupling surface;

[0007] Second light source;

[0008] a second light guide, used for collimating the light from the second light source and then emitting it;

[0009] Wherein, the first coupling surface includes:

[0010] a transmission surface, configured to transmit the light of the second light source emitted from the second light guide, so that the light of the second light source emitted from the second light guide can be emitted from the second coupling surface;

[0011] The reflecting surface is used to reflect the light of the first light source incident into the first light guide, so that the light of the first light source incident into the first light guide can be emitted from the second coupling surface.

[0012] In one embodiment:

[0013] The number of the first light source is one and is arranged at one end of the first light guide;

[0014] The first coupling surface includes a plurality of the reflective surfaces and a plurality of the transmissive surfaces that are alternately arranged.

[0015] In one embodiment:

[0016] The second light guide includes a third coupling surface and a light emitting surface, and the third coupling surface includes a plurality of focusing surfaces;

[0017] There are multiple second light sources, and each second light source is respectively arranged at a corresponding position of the corresponding focusing plane.

[0018] In one embodiment:

[0019] The first coupling surface of the first light guide is opposite to the light emitting surface of the second light guide;

[0020] The second light source faces a third coupling surface of the second light guide;

[0021] The first light guide is parallel to the second light guide.

[0022] In one embodiment, the light emitting surface has an optical pattern.

[0023] In one embodiment, the second light guide is a reflective concentrator; and the second light source is arranged above the reflective concentrator.

[0024] In one embodiment, the second light guide is a reflector.

[0025] In one embodiment, it further includes: a light distribution mirror, which is arranged at a corresponding position of the second coupling surface of the first light guide.

[0026] In one embodiment, the lens has an optical pattern.

[0027] A vehicle lamp is characterized in that the above-mentioned lighting system is installed in the vehicle lamp.

[0028] The lighting system of the above-mentioned vehicle lamp is designed with a transmission surface and a reflection surface on the first coupling surface of the first light guide, so that the transmission surface can transmit the light of the second light source emitted from the second light guide, so that the light of the second light source emitted from the second light guide can be emitted from the second coupling surface; and the reflection surface can reflect the light of the first light source incident into the first light guide, so that the light of the first light source incident into the first light guide can be emitted from the second coupling surface, thereby meeting the effect of the first light source and the second light source being independently lit to achieve the regulatory effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A front view of the lighting system of the vehicle lamp of the present invention;

[0030] Figure 2 for Figure 1 AA cross-sectional view;

[0031] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the first light guide;

[0032] Figure 4 for Figure 1 FF cross-sectional view in;

[0033] Figure 5 is a schematic diagram of the lighting system of the vehicle lamp of the present invention;

[0034] Figure 6 Schematic diagram of the structure of a second light guide with an optical pattern added in one embodiment of the present invention;

[0035] Figure 7 is a schematic structural diagram of a light emitting surface of a second light guide in one embodiment of the present invention;

[0036] Figure 8 This is a specific application of the lighting system of the vehicle lamp of the present invention;

[0037] Figure 9 This is a schematic structural diagram of a lighting system of a vehicle lamp according to the present invention after a light distribution mirror is provided;

[0038] Figure 10 This is a structural diagram of a lighting system of a vehicle lamp in one embodiment of the present invention after a light distribution mirror is provided;

[0039] Figure 11 is a schematic structural diagram of a lighting system of a vehicle lamp when the second light guide is a reflective concentrator in one embodiment of the present invention;

[0040] Figure 12 FIG. 4 is a structural diagram of a lighting system of a vehicle lamp when the second light guide is a reflector in one embodiment of the present invention. DETAILED DESCRIPTION

[0041] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0047] See Figures 1 to 3 as well as Figure 5 , Figure 1 A schematic diagram of the overall structure of a lighting system for a vehicle lamp in an embodiment of the present invention is shown. The lighting system for a vehicle lamp provided by an embodiment of the present invention includes a first light source 3, a first light guide 1, a second light source 4 and a second light guide 2, wherein the second light guide 2 is used to collimate the light of the second light source 4 and then emit it; the first light guide 1 includes a first coupling surface 11 and a second coupling surface 12, wherein the first coupling surface 11 includes a transmission surface 112 and a reflection surface 111, the transmission surface 112 is used to transmit the light of the second light source 4 emitted from the second light guide 2, so that the light of the second light source 4 emitted from the second light guide 2 can be emitted from the second coupling surface 12, and the reflection surface 111 is used to reflect the light of the first light source 3 incident into the first light guide 1, so that the light of the first light source 3 incident into the first light guide 1 can be emitted from the second coupling surface 12. As an example, the reflective surface 111 can be an inclined surface concave into the first light guide 1, and its inner bevel angle can be adjusted according to actual conditions, so that most of the light from the first light source 3 can be reflected by the reflective surface 111 to the second coupling surface 12 and then emitted, and the amount of light refracted or transmitted out is minimized; the transmissive surface 112 can be a plane, and the transmissive surface 112 is designed to be perpendicular to the direction of the light from the second light source 4 emitted from the second light guide 2, so that most of the light from the second light source 4 can penetrate the transmissive surface 112, and the amount of light reflected back is minimized.

[0048] It is worth noting that the number of the first light sources 3 can be arbitrary, and each first light source 3 can be composed of more than one LED lamp, for example, 1 LED lamp, 2 LED lamps, 3 LED lamps, etc., without limitation here. Of course, in other embodiments, the first light source 3 can also be composed of light sources other than LEDs.

[0049] In the lighting system of the vehicle lamp of the present invention, light emitted by the first light source propagates within the first light guide, is reflected by the reflective surface of the first coupling surface, and is emitted from the second coupling surface to achieve a specific lighting function. Light from the second light source is collimated by the third coupling surface and then emitted, continuing to pass through the first and second coupling surfaces before finally being emitted from the second coupling surface to achieve a specific lighting function. In this way, the first and second light sources can be independently illuminated to achieve different functions of the vehicle lamp. As an example, the first and second light sources can be of the same color or different colors, thereby achieving a switching effect between different colors of vehicle lamps. As another example, when multiple second light sources are provided, they can be illuminated sequentially in a smooth or logical manner, such as from one end to the other, with each second light source being illuminated sequentially to achieve a flowing or time-series effect. Alternatively, multiple second light sources can be illuminated sequentially in a regular pattern to achieve a dynamic effect.

[0050] Of course, in addition to the above-mentioned first light source and second light source being lit independently, since the light from the first light source and the second light source can eventually be emitted from the second coupling surface of the first light guide, the lighting system of the vehicle lighting device of the present invention can also light up the first light source and the second light source at the same time to achieve regulations.

[0051] Therefore, the present invention can realize the above three different lighting functions through the above special structural design, so that the three functions can be integrated together, and at the same time it also has the effect of turn signal timing, which greatly improves the space utilization rate. Under the same occupied space, it integrates more functions and effects than traditional vehicle lamps.

[0052] In this embodiment, the direction of the second coupling surface 12 of the first light guide 1 is defined as the front, and the second light guide 2 is arranged behind the first light guide 1 .

[0053] In one embodiment, there is one first light source 3, which is disposed at one end of the first light guide 1. The first coupling surface 11 includes a plurality of reflective surfaces 111 and a plurality of transmissive surfaces 112 that are alternately arranged, i.e., a reflective surface is adjacent to a corresponding transmissive surface to form a tooth-shaped first coupling surface 11. The evenly alternating reflective surfaces 111 and transmissive surfaces 112 facilitate uniform emission of light from the second light source 4.

[0054] In one embodiment, there are two first light sources 3, one at each end of the first light guide 1. Simultaneously lighting the two first light sources 3 can provide higher brightness than a single first light source 3. In this case, it is necessary to add a reflective surface to the first coupling surface 11 based on the direction of the incident light from the first light source 3 and the first light guide 1, so that the incident light from the two first light sources 3 at both ends can be reflected by the first coupling surface 11 and then emitted from the second coupling surface 12. Of course, in another embodiment, the two first light sources 3 can also be arranged at the same end of the first light guide 1.

[0055] In one embodiment: Figure 2 As shown, the second light guide 2 includes a third coupling surface 21 and a light emitting surface 22, and the third coupling surface 21 includes a plurality of focusing surfaces 211; the number of the second light sources 2 is multiple, and each second light source 2 is respectively arranged at a corresponding position of the corresponding focusing surface 211. Specifically, the second light source 2 is arranged behind the focusing surface 211 and is located at the center position, so that the collimation effect of the light is optimized.

[0056] In one embodiment, the first coupling surface 11 of the first light guide 1 is opposite to the light emitting surface 22 of the second light guide 2, and the second light source 4 is facing the third coupling surface 21 of the second light guide 2; the first light guide 1 is parallel to the second light guide 2, and specifically, the planes where the first coupling surface 11, the second coupling surface 12, the third coupling surface 21 and the light emitting surface 22 are located are all parallel, so as to maximize the space utilization and light extraction rate of the entire light emitting system structure, while helping to save costs.

[0057] like Figure 6 As shown, in one embodiment, the light emitting surface 22 has an optical pattern to increase light diffusion so that the light can be emitted at an angle that can be controlled. Specifically, the optical pattern can be an optical pattern with a wavy profile.

[0058] like Figure 7 As shown, the light emitting surface 22 of the second light guide 2 may also be structurally designed to optimize the lighting appearance. For example, the light emitting surface 22 of the second light guide 2 may be designed to converge toward the center.

[0059] like Figure 11 As shown, in one embodiment, the second light guide 2 is a reflective concentrator. In this case, the second light source 4 is arranged above the reflective concentrator to achieve a collimating effect. Figure 12 As shown, in another embodiment, the second light guide 4 is a reflector that can also have a collimating effect. Specifically, the reflectors can be provided in one or more pairs.

[0060] like Figure 9 As shown, in one embodiment, a light distribution mirror 5 is provided at a position corresponding to the second coupling surface 12 of the first light guide 1, specifically, in front of the second coupling surface 12, as shown in FIG. Figure 10 As shown, the light distribution lens 5 can be provided with an optical pattern to further increase the light diffusion so that the light can be emitted at an angle and the angle can be controlled.

[0061] The present invention also provides a vehicle lamp equipped with the above-mentioned lighting system. Figure 8As shown, specifically, the first light guide 1, the second light guide 2, the first light source 3 and the second light source 4 are all installed along the vehicle body shape direction, and the second light guide 2 can be designed as an integrated thick-walled part to improve the stability of the overall structure.

[0062] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A lighting system for a vehicle lamp, characterized in that: include: a first light source; a first light guide comprising a first coupling surface and a second coupling surface; The first light source is disposed at at least one end of the first light guide; Second light source; a second light guide, used for collimating the light from the second light source and then emitting it; The second light guide comprises a third coupling surface and a light emitting surface, and the first coupling surface of the first light guide is opposite to the light emitting surface of the second light guide; The second light source faces a third coupling surface of the second light guide; Wherein, the first coupling surface includes: a transmission surface, configured to transmit the light of the second light source emitted from the second light guide, so that the light of the second light source emitted from the second light guide can be emitted from the second coupling surface; a reflective surface, configured to reflect the light of the first light source incident on the first light guide, so that the light of the first light source incident on the first light guide can be emitted from the second coupling surface; the first coupling surface includes a plurality of the reflective surfaces and a plurality of the transmissive surfaces alternately arranged; The first coupling surface is tooth-shaped.

2. The lighting system of a vehicle lamp according to claim 1, characterized in that: The number of the first light source is one.

3. The lighting system of a vehicle lamp according to claim 1, wherein: The third coupling surface includes a plurality of focusing surfaces; There are multiple second light sources, and each second light source is respectively arranged at a corresponding position of the corresponding focusing plane.

4. The lighting system of a vehicle lamp according to claim 3, characterized in that: The first light guide is parallel to the second light guide.

5. The lighting system of a vehicle lamp according to claim 3 or 4, characterized in that: The light-emitting surface has an optical pattern.

6. The lighting system of a vehicle lamp according to claim 1, characterized in that: The second light guide is a reflective concentrator; The second light source is arranged above the reflective concentrator.

7. The lighting system of a vehicle lamp according to claim 1, characterized in that: The second light guide is a reflector.

8. The lighting system of a vehicle lamp according to claim 1, wherein: Also includes: A light distribution mirror is arranged at a corresponding position of the second coupling surface of the first light guide.

9. The lighting system of a vehicle lamp according to claim 8, characterized in that: The light distribution mirror is provided with optical patterns.

10. A vehicle lamp, characterized in that: The lighting system according to any one of claims 1 to 9 is mounted in the vehicle lamp.

Images