An automotive lighting device that uses the principle of peripheral drift illusion to achieve 3D dynamic visual effects

Abstract

The present invention provides an automotive lighting device that uses the principle of peripheral drift illusion to achieve a 3D dynamic visual effect, comprising a PCB board, a first LED light source, a second LED light source, a reflecting device, a transparent light guide plate and a transparent cover thin layer, wherein the first LED light source and the second LED light source are arranged on the PCB board, the transparent light guide plate is arranged in front of the PCB board, the reflecting device and the transparent cover thin layer are respectively arranged on both sides of the transparent light guide plate, and the number of the first LED light source and the second LED light source is the same and they are respectively two different colors. Through a simple PCB board, an LED light source, a reflecting device, a transparent light guide plate and a transparent cover thin layer, wherein the light of two rows of LEDs respectively passes through the reflecting device and the transparent light guide plate to finally form a four-color luminescence mechanism of a specific pattern on the transparent cover thin layer, the 3D dynamic visual effect in a static environment is achieved by using the principle of peripheral drift illusion of human eyes.

Description

Technical Field

[0001] The present invention relates to the field of automobile lighting, and in particular to an automobile lighting device which realizes 3D dynamic visual effects by utilizing the principle of peripheral drift illusion. Background Art

[0002] With the rapid development of automobile lighting technology, in addition to the need for designed lights to strictly meet regulatory requirements, vehicle customers are paying more and more attention to the appearance of lights, especially the lighting effect. Many customers require that the lights can produce a rich atmosphere effect when the car is started or turned off. For car taillights, customers like novel designs and perfect lighting effects. Therefore, more and more light guides and thick-walled parts are used in car taillights, which have met the requirements of transparency, uniformity, and varied shapes.

[0003] Currently, the lighting design of car lights is mostly presented with static lighting effects. Many customers hope to have vivid dynamic effects, especially when the car is started or turned off. Customers hope to have a cool atmosphere effect. In order to achieve such dynamic effects, complex circuit design is generally used to control the regular lighting of LEDs, which often requires expensive and complex electronic components to achieve intelligent control of light sources. Such designs are not only expensive but also require large PCB board support. Especially for cars with compact space and high cost performance, it is undoubtedly a very difficult problem. How to meet customers' needs for dynamics and achieve it with low-cost methods has become a century-old problem of having your cake and eating it too. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an automobile lighting device that utilizes the principle of peripheral drift illusion to achieve 3D dynamic visual effects. It does not require complex circuits and electronic components for control, but only uses simple but ingeniously designed optical components. It utilizes the peripheral drift illusion of the human eye to achieve naked-eye 3D dynamic effects, which not only saves space and has high cost-effectiveness, but also meets customers' needs for dynamic car lights.

[0005] The present invention provides an automobile lighting device that realizes a 3D dynamic visual effect by utilizing the principle of peripheral drift illusion. The device comprises a PCB board, a first LED light source, a second LED light source, a reflecting device, a transparent light guide plate and a transparent cover thin layer. The first LED light source and the second LED light source are arranged on the PCB board, the transparent light guide plate is arranged in front of the PCB board, the reflecting device and the transparent cover thin layer are respectively arranged on both sides of the transparent light guide plate, and the number of the first LED light source and the second LED light source is the same and they are respectively two different colors.

[0006] A further improvement is that the reflecting device is a non-aluminum-plated white reflector with diffuse reflection effect in order to form uniform surface light emission.

[0007] A further improvement is that the light incident surface of the transparent light guide plate has a sawtooth-shaped and frosted structure, so as to allow light to enter the light guide plate more evenly, thereby more effectively utilizing the light generated by the LED.

[0008] A further improvement is that the transparent light guide plate is a gradient rectangular parallelepiped structure, and the end is smaller in height than the light incident end, so that the light generated by the LED can be more effectively utilized.

[0009] Further improvements are as follows: a micrometer-level optical microstructure is distributed on the lower surface of the transparent light guide plate, which structure protrudes toward the upper surface and guides light to the upper surface by scattering and reflection; the optical microstructure is a micrometer-level hemispherical structure, and the distribution of the optical microstructure is distributed according to non-equal width elliptical graphic areas.

[0010] A further improvement is that the optical microstructure is composed of at least two rows of light-emitting groups in the upper and lower parts and at least two columns of light-emitting groups in the left and right parts, each of the light-emitting groups contains two left-right symmetrical light-emitting units, and the light-emitting units contain at least three light-emitting components. In actual effect, at least four would be better, but theoretically three already have a certain effect.

[0011] A further improvement is that the width of the luminous component of the luminous unit on the left side of the above-mentioned luminous group increases successively from left to right, and the width of the luminous component of the luminous unit on the right side of the above-mentioned symmetrical luminous group increases successively from right to left, so as to create a luminous visual effect in which the luminous mechanism continuously extends and rotates from the middle to both sides.

[0012] A further improvement is that the luminous component 5d-1 of each luminous unit conforms to the golden ratio of 1:0.618 to present the best visual effect, the area of ​​the luminous component 5d-2 of each luminous unit is 3 / 4 of the figure 5d-1, the area of ​​the luminous component 5d-3 is 2 / 4 of the figure 5d-1, and the area of ​​the luminous component 5d-4 is 1 / 4 of the figure 5d-1, decreasing in sequence.

[0013] A further improvement is that the spacing between the luminous component 1 5d-1 and the luminous component 2 5d-2 of each luminous unit is twice the spacing between any other two adjacent luminous components.

[0014] A further improvement is that half-moon-shaped patterns with different colors are distributed on the transparent cover layer and coincide with the pattern boundaries formed by the microstructures on the transparent light guide plate. The two recommended colors are black and white, which are used as boundaries for the light-emitting areas on the transparent light guide plate.

[0015] A further improvement is that the light of the first LED is reflected by the reflecting device, passes through the transparent light guide plate layer, and finally emerges from the transparent cover thin layer to form a uniform background lighting.

[0016] A further improvement is that the light of the second LED enters the transparent light guide plate, and after being scattered and reflected by the optical microstructure, the light finally emerges from the transparent cover thin layer to form a functional main lighting arranged in a regular manner. Some areas of the light guide plate are distributed with the optical microstructure, and these areas will emit light when the LED is turned on; some areas of the transparent light guide plate are not distributed with the optical microstructure, and these areas will not emit light when the LED is turned on.

[0017] A further improvement is that: the background color lighting emitted by the first LED and the reflecting device, and the functional main lighting with a certain shape pattern emitted by the second LED and the transparent light guide plate overlap on the transparent cover thin layer, and the transparent cover thin layer has a boundary for constraining the functional main lighting pattern, and the three work together to produce a light-emitting mechanism with four colors; further explained, the area on the transparent light guide plate where the optical microstructure is distributed and the background color overlap on the transparent cover thin layer to produce a new color of light, which is one of the four colors; in the area where the optical microstructure is not distributed on the transparent light guide plate, the background color directly passes through the area and presents the background color on the transparent cover thin layer, which is the second color of the four colors; the two different colors distributed on the transparent cover thin layer for constraining the boundary of the functional main lighting pattern are the third color and the fourth color, and the above three work together to produce a light-emitting mechanism with four colors, which makes the human eye have the illusion of peripheral drift and creates a feeling that the static pattern is constantly changing, thereby realizing a 3D dynamic visual effect in a static environment.

[0018] Further improvements are: the number of LEDs in the two rows is not less than 6, the spacing between the LEDs is 8mm, the color of the first LED is different from the color of the second LED, and can be any combination of 2 colors in RGB. When the color of the second LED is red, the first LED is turned off, which can meet the signal light regulations of the taillight, and when the two rows of LEDs are turned on at the same time, a 3D dynamic effect can be achieved.

[0019] A further improvement is that the transparent light guide plate and the transparent cover thin layer are made of polycarbonate or polymethyl methacrylate.

[0020] The beneficial effects of the present invention are as follows: through a simple PCB board, LED light source, reflective device, transparent light guide plate and transparent cover thin layer, the light of two rows of LEDs respectively passes through the reflective device and the transparent light guide plate to finally form a four-color light-emitting mechanism with a specific pattern on the transparent cover thin layer, and the 3D dynamic visual effect in a static environment is realized by using the principle of peripheral drift illusion of the human eye. This lighting device does not require complex circuits and electronic components to control, but only uses simple but cleverly designed optical components, and uses the peripheral offset illusion of the human eye to achieve naked-eye 3D dynamic effects, which not only saves space and is cost-effective, but also meets customers' needs for dynamic headlights. When an observer looks at the taillight device, he will feel that the taillight light pattern has a cyclical and repeated change, like the effect of a columnar structure constantly rotating and extending to both sides, which brings a strong visual impact to the observer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the present invention.

[0022] Figure 2 It is a side view of the transparent light guide plate of the present invention.

[0023] Figure 3 It is a pattern formed by the optical microstructures on the transparent light guide of the present invention.

[0024] Figure 4 The present invention Figure 3 A partial enlarged view of .

[0025] Figure 5 It is the transparent covering thin layer pattern of the present invention.

[0026] Figure 6 The present invention Figure 1 A partial enlarged view of 5d.

[0027] Figure 7 It is a schematic diagram of the optical microstructure of the present invention.

[0028] Figure 8 It is a lighting effect diagram of the present invention.

[0029] Among them: 1-PCB board, 2-first LED, 3-second LED, 4-reflection device, 5-transparent light guide plate, 5a-light incident surface of transparent light guide plate, 5b-lower surface of transparent light guide plate, 5c-upper surface of transparent light guide plate, 5d-optical microstructure, 5f-light No. 3, 6-transparent covering thin layer, 7a-light No. 1, 7b-light No. 2, 8a-light No. 4. DETAILED DESCRIPTION

[0030] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0031] Figure 1 is a side view of the embodiment; Figure 2 is a side view of a transparent light guide plate; Figure 3 It is a figure surrounded by optical microstructures. Figure 4 is a partial enlarged view of the optical microstructure, which is also a light-emitting group. The light-emitting group includes two left-right symmetrical light-emitting units. The light-emitting unit includes four light-emitting components, namely 5d-1, 5d-2, 5d-3, and 5d-4; Figure 5 It is a pattern of a transparent covering thin layer; Figure 6 This is a partial enlarged picture of 5d; Figure 7 is a schematic diagram of the optical microstructure; Figure 8 This is the final lighting effect diagram of the present invention. Figure 1 As shown, this embodiment provides an automotive lighting device that utilizes the principle of peripheral drift illusion to achieve a 3D visual dynamic effect, including a PCB board, an LED light source, a reflective device, a transparent light guide plate, and a transparent cover layer with a pattern. The LED light sources are in two rows, with at least 6 in each row. The color of the first LED light source 2 is different from the color of the second LED light source 3, and each is one of RGB. Studies have shown that the most confusing color combinations in the peripheral drift illusion are blue-yellow and red-green. In this embodiment, the first LED light source 2 is green and the second LED light source 3 is red. When the first LED is turned off, the taillight device can meet the taillight regulations. When the two rows of LEDs are turned on at the same time, the 3D visual dynamic effect of the present invention in a static environment can be achieved. A static environment means that all LED light sources are turned on and off at the same time, without complex electronic components controlling the circuit.

[0032] The reflector 4 is a non-aluminum-plated white reflector with diffuse reflection effect, in order to form uniform surface light emission. The light of the first LED light source 2 is reflected by the reflector 4, passes through the transparent light guide layer to reach the transparent cover layer 6, and finally forms a green background lighting on the transparent cover layer 6.

[0033] like Figure 2 As shown, the transparent light guide plate 5 is in the shape of a gradual rectangular parallelepiped, and the thickness decreases toward the tail end, in order to make full use of the light of the LED. In this embodiment, the light incident surface thickness of the transparent light guide plate 5 is 5 mm, and the thickness at the tail end is 3.5 mm. The light incident surface 5a of the transparent light guide plate 5 is a serrated and frosted structure, in order to allow light to enter the light guide plate more evenly, thereby more effectively utilizing the light generated by the LED.

[0034] like Figure 6 As shown, the lower surface 5b of the transparent light guide plate 5 is distributed with optical microstructures 5d in the shape of ellipses with non-uniform widths; Figure 7 In order to realize the 3D visual dynamic effect by utilizing the peripheral drift illusion of the human eye, the pattern distribution on the light guide plate 5 needs to satisfy the black and white half-moon pattern and coincide with the pattern boundary of the microstructure encircled on the transparent light guide plate, as shown in FIG. Figure 3 As shown, the optical microstructure 5d forms a luminous pattern on the transparent light guide plate. Figure 4 for Figure 3 A partial enlarged view of a light-emitting group, also called a light-emitting group, Figure 3 It is composed of many such light groups arranged symmetrically in an orderly manner. In order to achieve a clear peripheral drift illusion, at least Figure 4 Such a light-emitting group has two rows above and below and two columns left and right. The light-emitting group includes two left-right symmetrical light-emitting units. The width of the light-emitting component of the light-emitting unit on the left side of the light-emitting group increases from left to right, and the width of the light-emitting component of the light-emitting unit on the right side of the symmetrical light-emitting group increases from right to left, in order to create a luminous visual effect in which the light-emitting mechanism continuously extends and rotates from the middle to both sides. Among them, the height of Figure 5d-1 is 8mm and the width is 4.944. Its aspect ratio conforms to the golden ratio of 1:0.618, in order to present the best visual effect. The area of ​​Figure 5d-2 is 3 / 4 of Figure 5d-1, the area of ​​Figure 5d-3 is 2 / 4 of Figure 5d-1, and the area of ​​Figure 5d-4 is 1 / 4 of Figure 5d-1, decreasing in sequence. Among them, the spacing between Figures 5d-1 and 5d-2 is twice the spacing between every other two adjacent light-emitting components. The light from the second LED light source 3 enters the transparent light-guiding layer, and is reflected and scattered by the optical microstructure to form a Figure 3 Functional main lighting of luminous graphics.

[0035] The pattern on the optical light guide plate 5 alone cannot form an effective and obvious peripheral drift illusion. Two colors are required to provide clear boundaries for each component in a light-emitting unit. A two-color half-moon pattern is distributed on the transparent cover layer 6. The recommended two colors are black and white, respectively, to form boundaries for the light-emitting area on the transparent light guide plate. Figure 5 As shown, the left half of the border 6a is black, the right half of the border 6b is white, and the width of the border is half of the width of the smallest component in the light-emitting unit.

[0036] It is further explained that the base color lighting emitted by the first LED light source 2 and the reflecting device 4 is green, and the functional main lighting emitted by the second LED light source 3 and the transparent light guide plate 5 is red. Among them, light 1 and light 2 are the light emitted by the first LED, light 3 is the light emitted by the second LED, and light 4 is the superposition of light 2 and light 3 in the transparent cover layer. Light 1 7a in the green base color lighting passes through the place where there is no optical microstructure in the transparent light guide plate 5, and is directly presented on the transparent cover layer 6, which is still green; light 2 7b passes through the place where the optical microstructure is located in the transparent light guide plate 5, such as 5d. Since light 3 5f is red, light 4, which is presented on the transparent cover layer 6 by the action of light 2 and light 3 together, is blue. Finally, as Figure 6 As shown, what is observed from the transparent covering thin layer 6 is a green background color, a functional lighting pattern, that is, at least one of the above-mentioned non-uniform width elliptical patterns 5d is blue and has a four-color light-emitting mechanism with black and white borders. This light-emitting mechanism can give the human eye an illusion of peripheral drift and create a feeling that the static pattern is constantly changing, thereby achieving a 3D dynamic visual effect in a static environment.

[0037] The automobile lighting device that uses the principle of peripheral drift illusion to achieve 3D visual dynamic effects realizes the dynamic aesthetic art of the car lights in a static environment in an economical and efficient manner, bringing a visual aesthetic impact to the observer.

Claims

1. An automotive lighting device that uses the principle of peripheral drift illusion to achieve 3D dynamic visual effects, characterized in that: The invention comprises a PCB board (1), a first LED light source (2), a second LED light source (3), a reflecting device (4), a transparent light guide plate (5) and a transparent cover thin layer (6), wherein the first LED light source (2) and the second LED light source (3) are arranged on the PCB board (1), the transparent light guide plate (5) is arranged in front of the PCB board (1), the reflecting device (4) and the transparent cover thin layer (6) are respectively arranged on both sides of the transparent light guide plate (5), the first LED light source (2) and the second LED light source (3) are the same in number and are respectively of two different colors, and the transparent light guide plate (5) is provided with a light incident surface (5a), a lower surface (5b), an upper surface (5c), and a lower surface (5d). (5c) and an optical microstructure (5d), wherein the upper surface (5c) is located at the upper end of the transparent light guide plate (5), the lower surface (5b) is located at the lower end of the transparent light guide plate (5), the light incident surface (5a) is located at the light incident end of the transparent light guide plate (5), and the optical microstructure (5d) is located on the lower surface (5b); the light incident surface (5a) of the transparent light guide plate (5) is a sawtooth-shaped incident surface, and the lower surface (5b) of the transparent light guide plate (5) is distributed with optical microstructures (5d) arranged in an elliptical pattern of non-uniform width, and the optical microstructure (5d) is a microstructure of micrometer level, and its shape is a hemispherical structure, and the shape of the transparent light guide plate (5) is a gradually changing rectangular parallelepiped; The optical microstructure (5d) is composed of at least two upper and lower rows and at least two left and right columns of light-emitting groups, each of which contains two left-right symmetrical light-emitting units, and the light-emitting units contain at least three light-emitting components; The width of the light component of the light unit on the left side of one of the light groups increases from left to right, and the width of the light component of the light unit on the right side of the symmetrical light group increases from right to left, so as to create a light visual effect that the light mechanism continuously extends and rotates from the middle to both sides; The spacing between the luminous component one (5d-1) and the luminous component two (5d-2) of each luminous unit is twice the spacing between any other two adjacent luminous components.

2. The automotive lighting device for realizing 3D dynamic visual effect by utilizing the peripheral drift illusion principle as claimed in claim 1, characterized in that: The reflecting device (4) is a non-aluminum-plated white reflecting mirror with a diffuse reflection effect.

3. The automotive lighting device for realizing 3D dynamic visual effect by utilizing the peripheral drift illusion principle as claimed in claim 1, characterized in that: The transparent cover thin layer (6) is distributed with half-moon patterns of two different colors, and coincides with the pattern boundary formed by the microstructure on the transparent light guide plate, so as to form a clear boundary for the light-emitting area of ​​the transparent light guide plate (5).

4. The automotive lighting device for realizing 3D dynamic visual effect by utilizing the peripheral drift illusion principle as claimed in claim 1, characterized in that: After being diffusely reflected by the reflection device (4), the light from the first LED light source (2) passes through the transparent light guide plate (5) and finally emerges from the transparent cover layer (6), thereby forming uniform background lighting.

5. The automotive lighting device for realizing 3D dynamic visual effect by utilizing the peripheral drift illusion principle as claimed in claim 4, characterized in that: Light from the second LED light source (3) enters the transparent light guide plate (5), is reflected by the optical microstructure (5d), and finally emerges from the transparent cover layer (6), forming functional main lighting arranged in a regular pattern.

6. The automotive lighting device for realizing 3D dynamic visual effect by using the peripheral drift illusion principle as claimed in claim 5, characterized in that: The background lighting and the functional main lighting overlap on the transparent cover layer (6), and the transparent cover layer has a boundary for constraining the functional main lighting pattern. The overlapping luminous mechanism of the three gives the human eye an illusion of peripheral drift, causing a feeling that the static pattern is constantly changing, thereby achieving a 3D dynamic visual effect in a static environment.

7. The automotive lighting device for realizing 3D dynamic visual effect by using the peripheral drift illusion principle as claimed in claim 1, characterized in that: The number of the first LED light source (2) and the second LED light source (3) needs to be at least 6 respectively; the colors of the first LED light source (2) and the second LED light source (3) are different, and are a combination of any two colors among the three primary colors; when the first LED light source (2) is turned off and the second LED light source (3) is turned on and the color is red, the lighting device functions as a taillight signal light and meets the regulations; when the first LED light source (2) and the second LED light source (3) are turned on at the same time, a welcoming and atmosphere effect is achieved.

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