A light guide structure, thick-walled component and illumination structure capable of realizing dual-color luminescence

Abstract

The present invention relates to the technical field of vehicle lamp lighting equipment, and discloses a light guide structure and a thick-walled part and an illumination structure capable of realizing dual-color luminescence, comprising a concentrator and a plurality of groups of arc-shaped reflective surfaces, wherein the plurality of groups of arc-shaped reflective surfaces enclose a trumpet-shaped arc-shaped surface group, the concentrator is arranged in a space enclosed by the trumpet-shaped arc-shaped surface group, the center line of the concentrator coincides with the center line of the arc-shaped surface group, and the light inlet of the concentrator is provided with a plurality of groups of light collecting ends, which are symmetrically arranged adjacent to each other. The device is provided with a plurality of groups of light collecting ends in the concentrator, and a point light source of different colors is provided at each group of light collecting ends, and then the luminous color is controlled by lighting the point light sources of different colors. The cost of vehicle lamps can be reduced by using a single-color point light source. In addition, since the plurality of groups of light collecting ends are all arranged in the light inlet slot of a group of concentrators, there is no other structure blocking the light collecting ends, thereby solving the problem of obvious dark areas that appear when the existing light guide structure is lit.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lamp lighting equipment, and in particular to a light guide structure, a thick-walled component and an illumination structure capable of realizing dual-color luminescence. Background Art

[0002] With the development of science and technology and the improvement of living standards, passenger cars have gradually become the main means of transportation for people to travel. In the field of vehicle lighting design and manufacturing, LED light sources have gradually become the main light source for vehicle lights due to their advantages such as fast response, low energy consumption, and stable chromaticity. In order to increase the lighting form of car lights, more and more car lights now adopt a three-function hybrid design, that is, a thick wall realizes three lighting modes of white light, yellow light and mixed light.

[0003] To achieve the above lighting effects, the existing headlight structure has the following two solutions:

[0004] 1. Replace the point light source with new LED light-emitting particles with dual-color light-emitting function. Different lighting effects can be achieved by emitting different lights through dual-color LED light-emitting particles. However, since the price of such dual-color LED light-emitting particles is very expensive, the price of the entire car light has been greatly increased.

[0005] Second, multiple groups of concentrators are arranged in sequence, and a group of monochromatic LED light particles are set at the light port of each group of concentrators. Every two adjacent groups of LED light particles emit light of different colors, so that the headlights can emit lights of different colors by controlling the lighting and closing of LED light particles of different colors. However, due to the intervals between the light inlets of each concentrator and the obstruction of the reflective arc surface on the outside of the concentrator, when the LED light particles corresponding to each group of concentrators are lit, the light is basically captured by the concentrator corresponding to the device, and the concentrators adjacent to them cannot obtain light and form dark areas. At this time, when the headlights are illuminated, there will be obvious dark areas, affecting the lighting effect. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a light-guiding structure, a thick-walled component and an illumination structure that can achieve two-color luminescence. The device can achieve a multi-color illumination effect, and the emitted light is more uniform, which can avoid the formation of dark areas to the greatest extent.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A light-guiding structure capable of realizing two-color luminescence includes a concentrator and a plurality of groups of arcuate reflective surfaces, wherein the plurality of groups of arcuate reflective surfaces enclose a trumpet-shaped arcuate surface group, the concentrator is arranged inside a space enclosed by the trumpet-shaped arcuate surface group, the center line of the concentrator coincides with the center line of the arcuate surface group, the light inlet of the concentrator is provided with a plurality of groups of light-collecting end heads, and the plurality of groups of light-collecting end heads are symmetrically arranged adjacent to each other.

[0009] In the present invention, preferably, the light collecting ends are arranged in four groups, and the four groups of light collecting ends are arranged in a square shape.

[0010] In the present invention, preferably, the light collecting ends are arranged in two groups, and the two groups of light collecting ends are arranged adjacent to each other in a straight line.

[0011] In addition, the present invention also provides a thick-walled component capable of realizing dual-color luminescence, and the thick-walled component includes any one of the above-described light-guiding structures capable of realizing dual-color luminescence.

[0012] In the present invention, preferably, a thick-walled body is included, the light-guiding structure is vertically fixed to the bottom of the thick-walled body, a reversing reflection plane is provided on the thick-walled body, and the reversing reflection plane is located directly above the light-guiding structure.

[0013] In the present invention, preferably, the angle between the reversing reflection plane and the thick-walled body is 40°-50°, preferably 45°.

[0014] In the present invention, preferably, a diffusion pattern is provided on the reversing reflection plane.

[0015] In the present invention, preferably, the light guide structure is fixedly arranged at a side end opposite to the light emitting end of the thick-walled body, and the center line of the light guide structure is parallel to the bottom plane of the thick-walled member, thereby ensuring that the light emitted by the light guide structure is guided along the thick-walled body to the light emitting end.

[0016] In the present invention, preferably, the light emitting end is fixedly provided with a plurality of groups of step focusing units, each group of the step focusing units is formed by a plurality of groups of single-stage focusing units arranged in a stepped manner, and the light emitting surface of the single-stage focusing unit is set as an arc-shaped convex surface.

[0017] At the same time, the present invention also provides an illumination structure capable of realizing two-color luminescence, which includes a thick-walled part capable of realizing two-color luminescence as described in any one of the above items, a point light source is provided on the center line of each group of the light-collecting end heads, and the luminous colors of every two adjacent groups of the point light sources are different, and the point light sources are located on the convex side of the light-collecting end heads.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The device of the present invention can collect and collimate the incident light of the point light source and then emit it by setting a condenser and multiple groups of arc-shaped reflective surfaces. At the same time, multiple groups of light-collecting ends are arranged in the condenser, and a point light source is arranged at each group of light-collecting ends. The luminous colors of each group of adjacent point light sources are different. Thus, by lighting up the point light sources of the same color respectively, a single light is emitted, and then by lighting up the point light sources of different colors at the same time, a mixed light is emitted. And by selecting a single color point light source, the cost of the car lamp can be greatly reduced.

[0020] In addition, since there are multiple groups of light collecting ends in the concentrator, when one color of the point light source is lit, most of the light will be collected by the corresponding light collecting end and then emitted, and at the same time, a small amount of light will be collected by the adjacent light collecting end and then emitted. Since the multiple groups of light collecting ends are all arranged in the light entrance slot of a group of concentrators, there is no other structure blocking the light collecting ends. Therefore, when only one color of the point light source is lit, the light collecting end adjacent to this point light source will collect a part of the light of the lit point light source and then emit it, so that the irradiated light is more uniform, which can solve the problem of obvious dark areas appearing in the existing optical waveguide structure when it is lit, thereby affecting the illumination effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the light path when the light guide structure in the present invention cooperates with the reversing reflection plane.

[0022] Figure 2 It is a schematic diagram of the overall structure of the light guide structure in the present invention.

[0023] Figure 3 It is a side view when the light guide structure and the thick-walled body are arranged in parallel.

[0024] Figure 4 It is a side view when the light guide structure and the thick-walled body are arranged vertically.

[0025] Figure 5 This is a partial enlarged view of the stepped focusing unit on the thick-walled part.

[0026] In the attached drawings: 1, arc-shaped reflecting surface; 2, light-collecting end; 3, reversing reflecting plane; 31, diffusion pattern; 4, point light source; 5, thick-walled body; 6, stepped focusing unit; 61, arc-shaped convex surface. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] Please also see Figures 1 to 5A preferred embodiment of the present invention provides a light-guiding structure capable of realizing dual-color luminescence, including a concentrator and a plurality of groups of arc-shaped reflective surfaces 1. The plurality of groups of arc-shaped reflective surfaces 1 enclose a trumpet-shaped arc-shaped surface group. The large end of the opening of the trumpet-shaped arc-shaped surface group faces the light emission direction. The light projected onto the inner concave surface of the arc-shaped reflective surface 1 can be totally reflected through the arc-shaped surface group and then emitted in the form of parallel light toward the large end of the opening of the trumpet-shaped arc-shaped surface group. The concentrator is arranged inside the space enclosed by the trumpet-shaped arc-shaped surface group, and the center line of the concentrator coincides with the center line of the arc-shaped surface group. The concentrator and the arc-shaped surface group are used to collect the radiant light emitted by the point light source 4, and after the concentrator and the arc-shaped reflector gather and reverse the light, the light is emitted in the same direction in the form of parallel light. The light inlet of the concentrator is provided with a plurality of groups of light-collecting terminals 2, and the plurality of groups of light-collecting terminals 2 are symmetrically arranged adjacent to each other. The radiant light emitted by the point light source 4 can be collected through the light-collecting terminals 2 and then emitted in the form of parallel light. Since multiple groups of light collecting ends 2 are provided, different colors of LED light sources can be arranged at the rear of different light collecting ends 2, and then different colors of light can be irradiated by controlling the lighting and shutting down of different LED light sources. For example, when white LED light sources are lit at the same time, the car lights emit white light, and when yellow LED light sources are lit at the same time, yellow light is emitted. When two colors of LED light sources are lit at the same time, mixed light is emitted. Since each group of light collecting ends 2 is arranged close to each other in the light entrance of the concentrator and there is no obstruction between each group of light collecting ends 2, when the LED light sources are not arranged, it is necessary to ensure that the light sources corresponding to adjacent light collecting ends 2 emit different colors. Therefore, when only one color of LED light source is emitting light, the light collecting end heads 2 at the adjacent position will also collect part of the light from the LED light source and emit it again. Therefore, when a single color LED light source is lit, the light collecting end heads 2 at the adjacent position will also collect part of the light for projection, which will reduce the appearance of dark areas when the car lights are lit.

[0031] The light inlet end of the concentrator is provided with a plurality of light collecting end heads 2, and the plurality of light collecting end heads 2 are symmetrically arranged. The light collecting end heads 2 are arranged in four groups, and the four groups of light collecting end heads 2 are arranged in a square. The four groups of light collecting end heads 2 are arranged in a square form, and two groups of LED light sources of different colors are arranged in a diagonal form, so that the four groups of light collecting end heads 2 can improve the illumination brightness of the headlights when the LED light sources of each color are lit.

[0032] The light collecting ends 2 are arranged in two groups, and the two groups of light collecting ends 2 are arranged side by side and adjacent to each other in a straight line. This arrangement is the minimum number of light collecting ends 2 that can achieve light emission of different colors. LED light sources are respectively arranged on the center lines of the two groups of light collecting ends 2, and the light emission colors of the two groups of LED light sources are different. The color change of the car lights is achieved through different lighting methods. Since the cost of the LED light sources themselves is relatively low and the number is small, the equipment cost is reduced on the basis of achieving multi-color light emission. The existing LED lamp beads that can achieve two-color light emission have a higher unit price because they are newer technologies. The basic market price is 7 yuan / bead, while the ordinary single-color LED lamp beads are 2 yuan / bead. Comprehensively compared, the price of the car lights using the structure of the present invention is lower and more affordable.

[0033] like Figure 4 As shown, the present invention also provides a thick-walled component capable of realizing two-color luminescence, the thick-walled component comprising a light-guiding structure capable of realizing two-color luminescence as described in any one of the above. The thick-walled component comprises a thick-walled body 5, the light-guiding structure is vertically fixed to the bottom of the thick-walled body 5, a reversing reflection plane 3 is provided on the thick-walled body 5, and the reversing reflection plane 3 is located directly above the light-guiding structure. This thick-walled component structure can be integrally formed and manufactured by an injection molding process.

[0034] The angle between the reversing reflection plane 3 and the thick-walled body 5 is 40°-50°, preferably 45°. The reversing reflection plane 3 can reflect the light collected by the arc surface group and the multiple light collecting end heads 2 through the reversing reflection plane 3, and the outgoing light will be changed to a direction perpendicular to the light guide structure. At this time, the light will basically be transmitted through the thick-walled body 5 and then emitted from the light emitting end, and will not be emitted from the middle position of the thick-walled body 5 due to a large light deflection angle. When the reversing reflection plane 3 is set to 45 degrees, the outgoing light can be basically parallel to the entire thick-walled body 5.

[0035] The reversing reflective plane 3 is provided with a diffusion pattern 31. The diffusion pattern 31 can randomly deflect the light projected onto the reversing reflective plane 3 within a certain angle range so that the light rays are mixed with each other to finally form a more uniform lighting effect.

[0036] like Figure 3 As shown, the light guide structure is fixedly arranged at the end of one side opposite to the light emitting end of the thick-walled body 5, and the center line of the light guide structure is parallel to the bottom plane of the thick-walled member, thereby ensuring that the light emitted by the light guide structure is guided to the light emitting end along the thick-walled body 5. This structure belongs to another structural setting mode of the thick-walled member, through which the thickness of the entire thick-walled member can be reduced, and the setting of the reversing reflection plane 3 can be removed, and the light is directly gathered by the light guide structure and emitted to the light emitting end of the thick-walled body 5 for emission.

[0037] like Figure 5As shown, the light-emitting end is fixedly provided with a plurality of groups of stepped light-gathering units 6, each group of the stepped light-gathering units 6 is formed by a plurality of groups of single-stage light-gathering units arranged in a stepped manner, and the light-emitting surface of the single-stage light-gathering unit is set as an arc-shaped convex surface 61. The cross-sections of the arc-shaped convex surface 61 in the vertical direction and the horizontal direction are both arc-shaped structures. Since the thick-walled body 5 itself will be shaped to meet the design requirements or aesthetic requirements, a light-emitting surface with a certain arc or a special angle is generally set at the light-emitting end of the thick-walled body 5. Therefore, since the light-emitting surface has a certain angle with the emitted light, a certain angle of refraction will occur on the light-emitting surface when the light is emitted, thereby causing the light to be randomly projected to other directions, affecting the direct distance of the headlight. Therefore, by setting the arc-shaped convex surface 61, the emitted light can be focused and collimated and then emitted in a direction that is as consistent as possible, thereby increasing the irradiation distance of the headlight.

[0038] At the same time, the present invention also provides an illumination structure capable of realizing two-color luminescence, wherein the thick-walled member capable of realizing two-color luminescence as described in any one of the above items is provided, a point light source 4 is provided on the center line of each group of the light collecting end heads 2, and the luminescent colors of each two adjacent groups of the point light sources 4 are different, and the point light sources 4 are located on the convex side of the light collecting end heads 2. In the later stage, the light emission of different colors is realized by controlling the order in which the point light sources 4 of different luminescent colors are lit.

[0039] Working principle:

[0040] First, according to the requirements, the structure of the appropriate thick-walled part is selected, and the light guide structure is set vertically at the bottom surface of the thick-walled body 5, or is set parallel to the thick-walled body 5, and then the point light sources 4 of different colors are fixedly placed on the PCB board, and each point light source 4 is respectively set on the center line of the corresponding light collecting end 2. Then, the PCB board is used to control different point light sources 4 to light up or turn off to achieve the irradiation of lights of different colors.

[0041] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A light guide structure capable of achieving dual-color luminescence, characterized in that: The invention comprises a concentrator and a plurality of groups of arcuate reflecting surfaces (1), wherein the plurality of groups of arcuate reflecting surfaces (1) enclose a trumpet-shaped arcuate surface group, the concentrator is arranged inside a space enclosed by the trumpet-shaped arcuate surface group, the center line of the concentrator coincides with the center line of the arcuate surface group, and the light inlet of the concentrator is provided with a plurality of groups of light collecting ends (2), and the plurality of groups of light collecting ends (2) are symmetrically arranged adjacent to each other.

2. A light guide structure capable of realizing dual-color luminescence according to claim 1, characterized in that: The light collecting ends (2) are arranged in four groups, and the four groups of light collecting ends (2) are arranged in a square shape.

3. The light guide structure capable of realizing dual-color luminescence according to claim 1, characterized in that: The light collecting ends (2) are arranged in two groups, and the two groups of light collecting ends (2) are arranged in parallel in a straight line.

4. A thick-walled part capable of achieving dual-color luminescence, characterized in that: A light-guiding structure capable of realizing dual-color luminescence, comprising the light-guiding structure described in any one of claims 1 to 3.

5. A thick-walled part capable of achieving dual-color luminescence according to claim 4, characterized in that: It comprises a thick-walled body (5), the light-guiding structure is vertically fixed to the bottom of the thick-walled body (5), a reversing reflection plane (3) is provided on the thick-walled body (5), and the reversing reflection plane (3) is located directly above the light-guiding structure.

6. A thick-walled part capable of achieving dual-color luminescence according to claim 5, characterized in that: The angle between the reversing reflection plane (3) and the thick-walled body (5) is 40°-50°.

7. A thick-walled part capable of achieving dual-color luminescence according to claim 6, characterized in that: The reversing reflection plane (3) is provided with a diffusion pattern (31).

8. A thick-walled part capable of achieving dual-color luminescence according to claim 4, characterized in that: The light guide structure is fixedly arranged at an end portion of a side opposite to the light emitting end of the thick-walled body (5), and the center line of the light guide structure is parallel to the bottom plane of the thick-walled member, thereby ensuring that the light emitted by the light guide structure is guided along the thick-walled body (5) to the light emitting end.

9. A thick-walled part capable of achieving dual-color luminescence according to claim 8, characterized in that: The light-emitting end is fixedly provided with a plurality of groups of stepped light-focusing units (6), each group of the stepped light-focusing units (6) being formed by a plurality of groups of single-stage light-focusing units arranged in a stepped manner, and the light-emitting surfaces of the single-stage light-focusing units are arranged as arc-shaped convex surfaces (61).

10. A lighting structure capable of achieving dual-color luminescence, characterized in that: A thick-walled part capable of achieving two-color luminescence as described in any one of claims 4 to 9, wherein a point light source (4) is provided on the center line of each group of light-collecting ends (2), the luminous colors of every two adjacent groups of the point light sources (4) are different, and the point light sources (4) are located on the convex side of the light-collecting ends (2).

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