Uniformly-lightened reflection system and vehicle lamp
By designing a lighting uniform reflection system including the first reflective surface, the second reflective surface and the third reflective surface, the problem of uneven transmission of light lines in the vehicle light is solved, and the uniformity of light output and cost reduction of light output are achieved.
Patent Information
- Application Number
- CN202422718804.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Due to space limitations, the light transmission of existing car lights is uneven, which leads to different light energy on the side wall of the mirror during side viewing, resulting in a grainy feeling and poor uniformity.
A reflection system that is uniformly lit is adopted, including a first reflection surface, a second reflection surface and a third reflection surface. After multiple reflections, the light emits even light, which reduces the number of LEDs and reduces the cost.
It achieves uniform and efficient light output, reduces the number of LEDs used and reduces production costs.
Smart Images
Figure CN223282934U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile lamps, in particular to a reflection system and an automobile lamp with uniform lighting. Background Art
[0002] With the rapid development of automotive lighting technology and consumers' increasing demand for lighting effects, production costs and efficiency have become urgent issues for automotive lighting suppliers. Existing solutions require light from LEDs to pass through a series of devices before being emitted from the light-emitting surface to achieve a more uniform lighting effect.
[0003] In the existing technology, due to the limited front and rear space of some car lamp shapes, the optical components are close to the front and rear space of the light outlet, which will lead to uneven light transmission. Traditional reflector solutions usually add LED particles to improve the uniformity problem. However, when viewed from the side, the light energy of the side wall of the reflector is different from that of the light on the reflector surface, so the side view has obvious graininess and poor uniformity. Utility Model Content
[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a reflective system and a headlight with uniform lighting. The reflective system with uniform lighting allows light to be emitted after multiple reflections within the system, resulting in uniform lighting, saving the number of LEDs and reducing costs.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A uniformly lit reflective system includes a second reflective member, a first reflective member disposed outside the second reflective member; the second reflective member includes a second connecting bottom surface, an upwardly inclined third reflective surface disposed at one end of the second connecting bottom surface; the first reflective member includes a first connecting bottom surface, an upwardly inclined first reflective surface disposed at one end of the first connecting bottom surface, and the upper end of the first reflective surface is connected to the second reflective surface; the first reflective surface and the second reflective surface are both disposed outside the third reflective surface;
[0007] The first connecting bottom surface and the second connecting bottom surface are respectively arranged horizontally;
[0008] The first reflecting surface includes a plurality of continuously arranged first arc-shaped reflecting units, and the first arc-shaped reflecting units have a parabolic structure. The second reflecting surface includes a plurality of continuously arranged second arc-shaped reflecting units, and the second arc-shaped reflecting units have a parabolic structure. The second arc-shaped reflecting units are arranged one-to-one correspondingly to the first arc-shaped reflecting units. The third reflecting surface includes a plurality of continuously arranged third arc-shaped reflecting units, and the third arc-shaped reflecting units have a parabolic structure.
[0009] Furthermore, the first connecting bottom surface and the second connecting bottom surface are aligned vertically.
[0010] Furthermore, the angle between the first reflecting surface and the first connecting bottom surface is 130-140°, and the angle between the third reflecting surface and the second connecting bottom surface is 130-140°.
[0011] Furthermore, the second reflective surface is provided with a rectangular diffusion pattern, the first reflective surface is provided with a vertical stripe diffusion pattern, and the third reflective surface is provided with a vertical stripe diffusion pattern.
[0012] Furthermore, a side surface of the first reflector close to the second reflector is plated with an aluminum layer, and a side surface of the second reflector close to the first reflector is plated with an aluminum layer.
[0013] Furthermore, the longitudinal projection distance L3 of the second reflecting surface is greater than or equal to the longitudinal projection distance L1 of the third reflecting surface; and the transverse projection distance L2 of the second reflecting surface is greater than or equal to the transverse projection distance L4 of the first reflecting surface.
[0014] Furthermore, the first reflective component is an integral structure, and the second reflective component is an integral structure.
[0015] Furthermore, the first reflecting surface and the third reflecting surface are arranged in parallel.
[0016] A vehicle lamp comprises the above-mentioned uniformly lit reflection system.
[0017] The beneficial effects of the utility model are as follows: the utility model has a simple structure and a reasonable design, and is provided with a first reflecting surface, a second reflecting surface and a third reflecting surface. The light of the LED is first reflected by the second reflecting surface 1-3, converted into parallel light, and reflected into the air; then the parallel light is transmitted to the third reflecting surface, and after being reflected by it, the direction is changed by 90 degrees and the light is emitted into the air; then it is transmitted to the first reflecting surface, and after being reflected by it, it is finally emitted from the light outlet, and the light is uniform and efficient; the number of LEDs can be reduced, and the cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 It is a three-dimensional diagram of the utility model;
[0020] Figure 2 It is a side view of the utility model;
[0021] Figure 3It is a side plan view of the first reflector in the present invention;
[0022] Figure 4 This is a bottom view of the first reflector in the present utility model;
[0023] Figure 5 It is a front view of the first reflector in the present utility model;
[0024] Figure 6 It is a side plan view of the second reflector in the present invention;
[0025] Figure 7 It is a bottom view of the second reflector in the present utility model;
[0026] Figure 8 It is a front view of the second reflector in the present utility model;
[0027] Figure 9 It is a cross-sectional optical path diagram of the present utility model.
[0028] In the figure: 1. first reflective element, 2. second reflective element, 1-1. first connecting bottom surface, 1-2. first reflecting surface, 1-3. second reflecting surface, 2-1. second connecting bottom surface, 2-2. third reflecting surface. DETAILED DESCRIPTION
[0029] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this application belongs.
[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular also includes the plural. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0031] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0032] like Figures 1 to 8The illustrated reflective system for uniform lighting comprises a second reflector 2, a first reflector 1 being provided on the outer side of the second reflector 2; the second reflector 2 comprises a second connecting bottom surface 2-1, an end of which is provided with an upwardly inclined third reflective surface 2-2; the first reflector 1 comprises a first connecting bottom surface 1-1, an end of which is provided with an upwardly inclined first reflective surface 1-2, an upper end of which is connected to a second reflective surface 1-3; the first reflective surface 1-2 and the second reflective surface 1-3 are both located on the third reflective surface 2 -2 is arranged on the outside; the first connecting bottom surface 1-1 and the second connecting bottom surface 2-1 are respectively arranged horizontally; the first reflecting surface 1-2 includes a plurality of continuously arranged first arc-shaped reflecting units, and the first arc-shaped reflecting units have a parabolic structure; the second reflecting surface 1-3 includes a plurality of continuously arranged second arc-shaped reflecting units, and the second arc-shaped reflecting units have a parabolic structure, and the second arc-shaped reflecting units are arranged in a one-to-one correspondence with the first arc-shaped reflecting units; the third reflecting surface 2-2 includes a plurality of continuously arranged third arc-shaped reflecting units, and the third arc-shaped reflecting units have a parabolic structure.
[0033] The first connecting bottom surface 1 - 1 and the second connecting bottom surface 2 - 1 are aligned vertically.
[0034] The angle between the first reflecting surface 1-2 and the first connecting bottom surface 1-1 is 130-140 degrees, and the angle between the third reflecting surface 2-2 and the second connecting bottom surface 2-1 is 130-140 degrees. The first reflecting surface 1-2 and the third reflecting surface 2-2 are arranged in parallel.
[0035] The second reflective surface 1-3 is provided with a rectangular diffusion pattern, the first reflective surface 1-2 is provided with a vertical stripe diffusion pattern, and the third reflective surface 2-2 is provided with a vertical stripe diffusion pattern. The purpose of this structure is to increase diffusion and make the lighting more uniform.
[0036] The side of the first reflector 1 close to the second reflector 2 is plated with an aluminum layer, and the side of the second reflector 2 close to the first reflector 1 is plated with an aluminum layer. The aluminum layer further improves the reflection efficiency.
[0037] The longitudinal projection distance L3 of the second reflecting surface 1-3 is greater than or equal to the longitudinal projection distance L1 of the third reflecting surface 2-2; the transverse projection distance L2 of the second reflecting surface 1-3 is greater than or equal to the transverse projection distance L4 of the first reflecting surface 1-2. This structure can ensure that the light outlet is evenly illuminated.
[0038] The first reflective element 1 is an integral structure, and the second reflective element 2 is an integral structure.
[0039] A vehicle lamp comprises the above-mentioned uniformly lit reflection system.
[0040] like Figure 9As shown in the optical path diagram, the present invention includes a first reflector 1 and a second reflector 2, and the transmission medium between the two is an air medium. The specific optical path propagation direction is: the LED light is first reflected by the second reflective surface 1-3, converted into parallel light, and reflected into the air; then the parallel light is transmitted to the third reflective surface 2-2, and after being reflected by it, it changes direction by 90 degrees and emits light into the air; then it is transmitted to the first reflective surface 1-2, and after being reflected by it, it is finally emitted from the light outlet.
[0041] To sum up, the utility model has a simple structure and a reasonable design. It is provided with a first reflecting surface 1-2, a second reflecting surface 1-3 and a third reflecting surface 2-2. The light of the LED is first reflected by the second reflecting surface 1-3, converted into parallel light, and reflected into the air; then the parallel light is transmitted to the third reflecting surface 2-2, and after being reflected by it, it changes its direction by 90 degrees and emits light into the air; then it is transmitted to the first reflecting surface 1-2, after being reflected by it, and finally emitted from the light outlet. The light output is uniform and efficient; the number of LEDs is reduced, and the cost is reduced.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A reflective system with uniform lighting, characterized by: The invention comprises a second reflecting member (2), wherein a first reflecting member (1) is provided on the outer side of the second reflecting member (2); the second reflecting member (2) comprises a second connecting bottom surface (2-1), and an upwardly inclined third reflecting surface (2-2) is provided at one end of the second connecting bottom surface (2-1); the first reflecting member (1) comprises a first connecting bottom surface (1-1), and an upwardly inclined first reflecting surface (1-2) is provided at one end of the first connecting bottom surface (1-1), and the upper end of the first reflecting surface (1-2) is connected to the second reflecting surface (1-3); the first reflecting surface (1-2) and the second reflecting surface (1-3) are both arranged on the outer side of the third reflecting surface (2-2); The first connecting bottom surface (1-1) and the second connecting bottom surface (2-1) are respectively arranged horizontally; The first reflecting surface (1-2) includes a plurality of first arc-shaped reflecting units that are arranged continuously, and the first arc-shaped reflecting units have a parabolic structure. The second reflecting surface (1-3) includes a plurality of second arc-shaped reflecting units that are arranged continuously, and the second arc-shaped reflecting units have a parabolic structure. The second arc-shaped reflecting units are arranged in a one-to-one correspondence with the first arc-shaped reflecting units. The third reflecting surface (2-2) includes a plurality of third arc-shaped reflecting units that are arranged continuously, and the third arc-shaped reflecting units have a parabolic structure.
2. The uniformly lit reflection system according to claim 1, characterized in that: The first connecting bottom surface (1-1) and the second connecting bottom surface (2-1) are aligned vertically.
3. The uniformly lit reflection system according to claim 1, characterized in that: The included angle between the first reflecting surface (1-2) and the first connecting bottom surface (1-1) is 130-140°, and the included angle between the third reflecting surface (2-2) and the second connecting bottom surface (2-1) is 130-140°.
4. The uniformly lit reflection system according to claim 1, characterized in that: The second reflecting surface (1-3) is provided with a rectangular diffusion pattern, and the first reflecting surface (1-2) is provided with a vertical stripe diffusion pattern.
5. The uniformly lit reflection system according to claim 1, characterized in that: The surface of the third reflecting surface (2-2) is provided with a vertical striped diffusion pattern.
6. The uniformly lit reflection system according to claim 1, characterized in that: The side of the first reflector (1) close to the second reflector (2) is plated with an aluminum layer, and the side of the second reflector (2) close to the first reflector (1) is plated with an aluminum layer.
7. The uniformly lit reflection system according to claim 1, characterized in that: The longitudinal projection distance L3 of the second reflecting surface (1-3) is greater than or equal to the longitudinal projection distance L1 of the third reflecting surface (2-2); the transverse projection distance L2 of the second reflecting surface (1-3) is greater than or equal to the transverse projection distance L4 of the first reflecting surface (1-2).
8. The uniformly lit reflection system according to claim 1, characterized in that: The first reflective member (1) is an integral structure, and the second reflective member (2) is an integral structure.
9. The uniformly lit reflection system according to claim 3, characterized in that: The first reflecting surface (1-2) and the third reflecting surface (2-2) are arranged in parallel.
10. A vehicle lamp, characterized in that: The vehicle lamp comprises the uniformly lit reflection system according to any one of claims 1 to 9.