Light path conduction component for vehicle lamp and vehicle lamp

Abstract

The present invention discloses a light path transmission component for a vehicle lamp and a vehicle lamp. The light path transmission component for a vehicle lamp comprises a light source, a reflector, a lens and a decorative ring. The reflector is located on the propagation path of the outgoing light generated by the light source and is used to reflect the outgoing light to form a reflected light. The lens is located on the propagation path of the reflected light, and the lens comprises a light incident surface, the light incident surface comprises a plurality of sub-light incident surfaces arranged in sequence and adjacent to each other, each sub-light incident surface is used to refract the reflected light to form a deflected light. The decorative ring comprises a plurality of light-transmitting areas and a plurality of non-light-transmitting areas, the light-transmitting areas and the non-light-transmitting areas are arranged in sequence and at intervals, and the light-transmitting areas correspond to the sub-light incident surfaces one by one, and the light-transmitting areas are located on the propagation path of the deflected light. The light path transmission component for a vehicle lamp and the vehicle lamp provided by the present invention improve the utilization rate of the light emitted by the light source.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of lighting technology, and in particular to a light path conduction component for a vehicle lamp and a vehicle lamp. Background Art

[0002] With the rapid development of automobile lighting technology, the consumer demand for new technologies and beauty in the current automobile market has further accelerated the research and development of automobile lighting. This has put forward higher-level challenges to automobile lighting technology. Designers must not only design products that meet relevant regulations, but also use aesthetics to create lighting effects with extremely high aesthetic value.

[0003] In order to make the appearance of the headlights aesthetically pleasing, the design of lamps with discontinuous luminous surface shapes has become a popular design trend. The luminous surface of the lamp is provided with a black and white double-color decorative ring, wherein the black material divides the luminous surface shape into several small light-emitting surfaces. There are two main existing optical solutions for this type of headlights: one is to use a single light source without considering the black area blocking the light path. Due to the black area blocking the light path, the light flux of this solution is usually lost by 10 to 50% depending on the size of the blocked area during the regulation simulation, and the utilization rate of the light source is low; the other is to arrange a light source separately for each non-blocked area to avoid the black area blocking the light path. This solution can well avoid the black area blocking the light path, but the increase in light sources also increases the cost of the lamp. In addition, a single light source is often used for the light distribution of the bulb, and this solution makes the light distribution more difficult. Summary of the invention

[0004] The invention provides a light path conduction component for a vehicle lamp and the vehicle lamp, so as to improve the utilization rate of light emitted by a light source.

[0005] In a first aspect, an embodiment of the present invention provides a light path conducting assembly for a vehicle lamp, comprising a light source, a reflector, a lens and a decorative ring;

[0006] The reflector is located on the propagation path of the outgoing light generated by the light source, and is used to reflect the outgoing light to form reflected light;

[0007] The lens is located on the propagation path of the reflected light, and the lens includes a light incident surface, and the light incident surface includes a plurality of sub-light incident surfaces arranged adjacent to each other in sequence; each of the sub-light incident surfaces is used to refract the reflected light to form a deflected light;

[0008] The decorative ring includes a plurality of light-transmitting areas and a plurality of light-impermeable areas, the light-transmitting areas and the light-impermeable areas are arranged in sequence and spaced apart from each other, and the light-transmitting areas correspond to the sub-light incident surfaces one by one, and the light-transmitting areas are located on the propagation path of the deflected light.

[0009] Optionally, the reflecting surface of the reflector is an ellipsoidal surface.

[0010] Optionally, the focus of the reflector is located between the reflector and the lens.

[0011] Optionally, the lens is a crescent-shaped lens.

[0012] Optionally, each of the sub-light incident surfaces is a plane.

[0013] Optionally, normals of any two of the sub-light incident surfaces intersect.

[0014] Optionally, the light-transmitting area of ​​the decorative ring is formed with a fish-eye pattern.

[0015] Optionally, the light source is a single light source, and the light source includes a light bulb or a light emitting diode.

[0016] In a second aspect, an embodiment of the present invention further provides a vehicle lamp, which includes any one of the light path conduction components for the vehicle lamp described in the first aspect.

[0017] The technical solution provided by the embodiment of the present invention utilizes a reflector and a lens to reflect and refract the outgoing light emitted by the light source, so that all the outgoing light emitted by the light source is emitted to the light-transmitting area of ​​the decorative ring. During the light path transmission process, all the outgoing light emitted by the light source will not be blocked by the non-light-transmitting area of ​​the decorative ring, thereby improving the utilization rate of the outgoing light of the light source while satisfying the creative design of the car lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an existing light path conduction component for a vehicle lamp;

[0019] Figure 2 A schematic diagram of the structure of another existing light path conduction component for a vehicle lamp;

[0020] Figure 3 A schematic diagram of an exploded structure of a light path conducting component for a vehicle lamp provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the structure of a lens provided by an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of a light path of a light path conduction component for a vehicle lamp provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0024] Figure 1 The structure diagram of an existing light path transmission component for a vehicle lamp is shown in FIG. Figure 1 The light path transmission component includes a light source S1 and a decorative ring S2, wherein the light emitted by the light source S1 will be blocked by the black area on the decorative ring S2, thereby causing a large amount of light loss. The light path transmission component has a low utilization rate of the light emitted by the light source S1. Figure 2 This is a schematic diagram of the structure of another existing light path conduction component for vehicle lights. Figure 2 A light source S3 is separately arranged for each non-blocking area on the decorative ring S2, so as to avoid the black area on the decorative ring S2 blocking the light path. The light path transmission component can effectively avoid the black area on the decorative ring S2 blocking the light path. However, the increase of the light source S3 also increases the cost of the light path transmission component. In addition, a single light source is often used for the light distribution of the bulb. The light path transmission component has a high cost, is difficult to design and has poor heat resistance.

[0025] Based on the above technical problems, the embodiment of the present invention provides a light path transmission component for a vehicle lamp and a vehicle lamp, comprising a light source, a reflector, a lens and a decorative ring. The reflector is located on the propagation path of the outgoing light generated by the light source, and is used to reflect the outgoing light to form a reflected light. The lens is located on the propagation path of the reflected light, and the lens includes a light incident surface, and the light incident surface includes a plurality of sub-light incident surfaces arranged adjacent to each other in sequence, and each sub-light incident surface is used to refract the reflected light to form a deflected light. The decorative ring includes a plurality of light-transmitting areas and a plurality of non-light-transmitting areas, and the light-transmitting areas and the non-light-transmitting areas are arranged in sequence at intervals, and the light-transmitting areas correspond to the sub-light incident surfaces one by one, and the light-transmitting areas are located on the propagation path of the deflected light.

[0026] By adopting the above technical solution, a reflector and a lens are used to reflect and refract the outgoing light emitted by the light source, so that all the outgoing light emitted by the light source is emitted to the light-transmitting area of ​​the decorative ring. In the process of light path transmission, all the outgoing light emitted by the light source will not be blocked by the non-light-transmitting area of ​​the decorative ring, thereby satisfying the creative shape of the car lamp while improving the utilization rate of the outgoing light of the light source.

[0027] The above is the core idea of ​​the present invention. The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Figure 3 A schematic diagram of an exploded structure of a light path conducting component for a vehicle lamp provided by an embodiment of the present invention, such as Figure 3As shown, the light path conducting assembly for a vehicle lamp provided by the embodiment of the present invention comprises a light source 11, a reflector 12, a lens 13 and a decorative ring 14. The reflector 12 is located on the propagation path of the outgoing light generated by the light source 11, and is used to reflect the outgoing light to form reflected light. Figure 4 A schematic diagram of the structure of a lens provided by an embodiment of the present invention is shown in FIG. Figure 4 As shown, the lens 13 is located on the propagation path of the reflected light, and the lens 13 includes a light incident surface 131, and the light incident surface 131 includes a plurality of sub-light incident surfaces 21 arranged adjacent to each other in sequence, and each sub-light incident surface 21 is used to refract the reflected light to form a deflected light. Figure 3 The decorative ring 14 includes a plurality of light-transmitting areas 141 and a plurality of light-impermeable areas 142. The light-transmitting areas 141 and the light-impermeable areas 142 are arranged in sequence at intervals, and the light-transmitting areas 141 correspond to the sub-light incident surfaces 21 one by one. The light-transmitting areas 141 are located on the propagation path of the deflected light.

[0029] Specifically, Figure 5 A schematic diagram of a light path of a light path conducting component for a vehicle lamp provided by an embodiment of the present invention is shown in FIG. Figure 5 As shown, the outgoing light emitted by the light source 11 is reflected by the reflector 12 and then emitted to the lens 13. The sub-light incident surface 21 on the light incident surface 131 of the lens 13 distributes the reflected light from the reflector 12. The lens 13 deflects the reflected light to a specified angle and emits it. The deflected light is transmitted to each light-transmitting area 141 of the decorative ring 14 and is emitted through the light-transmitting area 141. The decorative ring 14 may be a black and white two-color decorative ring or a decorative ring of any other shape, which is not limited by the present invention.

[0030] The technical solution provided in the embodiment of the present invention utilizes the reflector 12 and the lens 13 to reflect and refract the outgoing light emitted by the light source 11, so that all the outgoing light emitted by the light source 11 is emitted to the light-transmitting area 141 of the decorative ring 14. In the process of light path transmission, all the outgoing light emitted by the light source 11 will not be blocked by the non-light-transmitting area 142 of the decorative ring 14, thereby improving the utilization rate of the outgoing light of the light source 11 while satisfying the creative design of the car lamp.

[0031] Continue to refer Figure 3 Optionally, the reflecting surface 121 of the reflector 12 is an ellipsoidal surface.

[0032] Among them, reference Figure 5, placing the light source 11 inside the reflector 12, so that the reflector 12 can reflect all the outgoing light emitted by the light source 11 in all directions to the direction of the light incident surface 131 of the lens 13, further improving the utilization rate of the outgoing light of the light source 11. The reflector 12 adopts an ellipsoidal reflector. Compared with an ordinary parabolic reflector, the ellipsoidal reflector can converge all the outgoing light emitted by the light source 11 to the focus 31, and the position of the light source 11 is not required to be high, making it easier to transmit the outgoing light of the light source 11 to the light incident surface 131 of the lens 13.

[0033] Continue to refer Figure 5 Optionally, the focus 31 of the reflector 12 is located between the reflector 12 and the lens 13 .

[0034] The focus 31 of the reflector 12 is set between the reflector 12 and the lens 13 , and the emitted light of the light source 11 can be transmitted to the multiple sub-light incident surfaces 21 of the lens 13 by simply adjusting the distance between the reflector 12 and the lens 13 .

[0035] Continue to refer Figure 3-Figure 5 , Optionally, the lens 13 is a crescent-shaped lens.

[0036] The lens 13 is a crescent-shaped lens, which can collect more reflected light from the reflector 12, and the crescent-shaped lens has a smaller spherical aberration, which is helpful to distribute the reflected light.

[0037] Continue to refer Figure 4 , Optionally, each sub-light incident surface 21 is a plane.

[0038] The sub-light incident surface 21 is a plane, which makes the design and manufacture of the light incident surface 131 of the lens 13 simpler.

[0039] Optionally, normals of any two sub-light incident surfaces 21 intersect.

[0040] Among them, the sub-light incident surface 21 is an optical surface that is at a specific angle to the vertical line of the decorative ring 14, and the normal direction of each sub-light incident surface 21 is different, so that the outgoing light of the light source 11 is distributed to the light-transmitting area 141 of the decorative ring 14. The number of sub-light incident surfaces 21 and the normal direction of each sub-light incident surface 21 can be adjusted according to the number of light-transmitting areas 141 of the decorative ring 14 and the distance between the lens 13 and the decorative ring 14. For example, the number of sub-light incident surfaces 21 is equal to the number of light-transmitting areas 141 on the decorative ring 14. It should be noted that the technical solution provided in the embodiment of the present invention is only a specific embodiment, and the normal lines of some sub-light incident surfaces 21 may not intersect, and those skilled in the art can design the sub-light incident surfaces 21 according to actual needs.

[0041] Continue to refer Figure 3 and Figure 5 Optionally, the lens 13 further includes a light emitting surface 132, which is arranged opposite to the light incident surface 131, and is located on the propagation path of the deflected light, and is a spherical surface.

[0042] The light emitting surface 132 is a spherical surface, and the light emitting surface 132 cooperates with the light incident surface 131 so that the lens 13 deflects the reflected light from the reflector 12 so that the deflected light is emitted to the light-transmitting area 141 on the decorative ring 14 .

[0043] Continue to refer Figure 3 Optionally, the light-transmitting area 141 of the decorative ring 14 is formed with a fish-eye pattern.

[0044] The light-transmitting area 141 of the bezel 14 includes an optical surface with a fisheye pattern, which can reverse the deflected light from the lens 13 in a collimated and diffused manner, redistribute the deflected light, and transmit the outgoing light from the light-transmitting area 141 to a desired specific angle. It is worth noting that the light-transmitting area 141 of the bezel 14 can be formed with patterns of any shape according to actual needs, and is not limited to fisheye patterns, and the embodiments of the present invention do not limit this.

[0045] Continue to refer Figure 3 Optionally, the light source 11 is a single light source, and the light source 11 includes a light bulb or a light emitting diode.

[0046] The light path transmission component for vehicle lights provided by the embodiment of the present invention adopts a single light source, which makes the cost of the light path transmission component for vehicle lights lower and makes it easier to distribute the light for vehicle lights. The light source 11 can be a bulb commonly used in vehicle lights, or a light emitting diode (LED), which is more energy-saving and environmentally friendly.

[0047] It should be noted that Figure 3-Figure 5 The lens 13 in the figure is only an example, and the shape of the lens 13 is not limited to Figure 3-Figure 5 The crescent-shaped lens includes a cut surface, and can also be a lens of any other shape, as long as it can distribute the emitted light of the light source 11 to the light-transmitting area 141 of the decorative ring 14.

[0048] The embodiment of the present invention provides a light path conduction component for a headlight with a discontinuous light-emitting surface. The light-emitting form of an ellipsoidal reflector and a crescent lens is adopted to reflect and refract the outgoing light emitted by the light source 11, so that all the outgoing light emitted by the light source 11 is emitted to the light-transmitting area 141 of the decorative ring 14. During the light path conduction process, all the outgoing light emitted by the light source 11 will not be blocked by the non-light-transmitting area 142 of the decorative ring 14, thereby greatly improving the utilization rate of the outgoing light of the light source 11 while satisfying the creative shape of the headlight.

[0049] Based on the same inventive concept, an embodiment of the present invention further provides a vehicle lamp, which includes a light path conduction component for a vehicle lamp provided by any of the above embodiments. The explanation of structures and terms that are the same or corresponding to the above embodiments will not be repeated here.

[0050] The vehicle lamp provided in the embodiment of the present invention utilizes the reflector 12 and the lens 13 to reflect and refract the outgoing light emitted by the light source 11, so that all the outgoing light emitted by the light source 11 is emitted to the light-transmitting area 141 of the decorative ring 14. In the process of light path transmission, all the outgoing light emitted by the light source 11 will not be blocked by the non-light-transmitting area 142 of the decorative ring 14, thereby improving the utilization rate of the outgoing light of the light source 11 while satisfying the creative design of the vehicle lamp.

[0051] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A light path conducting component for a vehicle lamp, characterized in that: Includes light source, reflector, lens and decorative ring; The reflector is located on the propagation path of the outgoing light generated by the light source, and is used to reflect the outgoing light to form reflected light; The lens is located on the propagation path of the reflected light, and the lens includes a light incident surface, and the light incident surface includes a plurality of sub-light incident surfaces arranged adjacent to each other in sequence; each of the sub-light incident surfaces is used to refract the reflected light to form a deflected light; The decorative ring includes multiple light-transmitting areas and multiple light-non-light-transmitting areas, the light-transmitting areas and the non-light-transmitting areas are arranged in sequence at intervals, and the light-transmitting areas correspond to the sub-light-incident surfaces one by one, the light-transmitting areas are located on the propagation path of the deflected light, the sub-light-incident surfaces are optical surfaces that form a specific angle with the perpendicular line of the decorative ring, and the normal direction of each sub-light-incident surface is different.

2. The light path conducting component for a vehicle lamp according to claim 1, characterized in that: The reflecting surface of the reflecting mirror is an ellipsoidal surface.

3. The light path conducting component for a vehicle lamp according to claim 2, characterized in that: The focal point of the reflector is located between the reflector and the lens.

4. The light path conducting component for a vehicle lamp according to claim 1, characterized in that: The lens is a crescent-shaped lens.

5. The light path conducting component for a vehicle lamp according to claim 4, characterized in that: Each of the sub-light incident surfaces is a plane.

6. The light path conducting component for a vehicle lamp according to claim 5, characterized in that: The normals of any two of the sub-light incident surfaces intersect.

7. The light path conducting component for a vehicle lamp according to claim 1, characterized in that: The light-transmitting area of ​​the decorative ring is formed with a fish-eye pattern.

8. The light path conducting component for a vehicle lamp according to claim 1, characterized in that: The light source is a single light source, and the light source includes a light bulb or a light emitting diode.

9. A vehicle lamp, characterized in that: A light path conduction component for a vehicle lamp comprising any one of claims 1-8.

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