TWI710481B - Reflective structure, vehicle lamp, and manufacturing method of reflective structure - Google Patents

Abstract

A reflective structure includes a substrate and a reflective layer. The reflective layer is disposed on the substrate. The reflective layer has a plurality of reflective areas. Each of the reflective areas has a thickness. At least two of the reflective areas have different thicknesses, and said at least two have different reflective coefficients.

Description

Reflective structure, vehicle lamp and manufacturing method of reflective structure

The present invention relates to a light-reflecting structure, in particular to a light-reflecting structure with various reflective brightness.

Generally speaking, for drivers who are driving at night or in environments with low visibility such as rain, fog, wind and sand, they are likely to cause traffic accidents due to unclear vision. Therefore, reflective structures have been widely used in safety maintenance in fields such as highways, railways, and fire protection. Under the illumination of the light, the reflective material can reflect the light of the car lights to remind the driver to pay attention to the road conditions.

However, for drivers who drive for a long time and feel tired, the warning message effect provided by the reflective structure with only a single reflective brightness does not seem to be ideal.

In view of this, one purpose of the present invention is to provide a reflective structure, a vehicle lamp, and a manufacturing method of the reflective structure with multiple reflective brightness.

In order to achieve the above object, according to one embodiment of the present invention, A reflective structure includes a substrate and a reflective layer. The reflective layer is arranged on the substrate. The light reflecting layer has a plurality of light reflecting areas. Each of the plurality of reflective areas has a thickness. The thickness of two of the plurality of reflective regions is different, and the reflective coefficients of at least two are different.

In one or more embodiments of the present invention, at least two of the above-mentioned plurality of reflective regions have the same thickness, and at least the other two have the same reflectance.

In one or more embodiments of the present invention, two of the aforementioned plurality of reflective regions having different thicknesses are the first reflective region and the second reflective region, respectively. The thickness of the first light reflection area is greater than the thickness of the second light reflection area, and the light reflection coefficient of the first light reflection area is greater than the light reflection coefficient of the second light reflection area.

In one or more embodiments of the present invention, the above-mentioned light-reflecting structure further includes an adhesive layer. The adhesive layer is arranged between the reflective layer and the substrate.

In one or more embodiments of the present invention, the above-mentioned reflective structure further includes a protective layer. The protective layer is arranged on the reflective layer.

In order to achieve the above objective, according to one embodiment of the present invention, a vehicle lamp includes a decorative plate, a lamp body and a reflective layer. The lamp body is arranged in the decorative board. The reflective layer is arranged on the decorative plate. The light reflecting layer has a plurality of light reflecting areas. Each of the plurality of reflective areas has a thickness. The thickness of at least two of the plurality of reflective areas is different, and the reflective coefficients of the at least two are different.

In order to achieve the above objective, according to one embodiment of the present invention, a method for manufacturing a reflective structure includes: forming a reflective material on a substrate; and adjusting the reflective material to obtain a reflective layer with a plurality of reflective regions, wherein the reflective regions each have a The thickness of at least two of the reflective areas is different.

In one or more embodiments of the present invention, the reflective material is adjusted The step includes performing at least one etching process on the reflective material to form the aforementioned reflective layer.

In one or more embodiments of the present invention, the above-mentioned etching process includes etching the reflective material with at least one energy source.

In one or more embodiments of the present invention, the number of the aforementioned at least one energy source is two. These energy sources have different powers. The above-mentioned etching process includes etching at least two parts of the reflective material with these energy sources, respectively.

In one or more embodiments of the present invention, the above-mentioned etching process includes etching at least two parts of the reflective material with different etching times.

In one or more embodiments of the present invention, the step of adjusting the reflective material includes partially coating the reflective material on the formed reflective material at least once to form a reflective layer.

In one or more embodiments of the present invention, it further includes forming a protective layer on the reflective layer.

In summary, in the present invention, the reflective regions in the reflective layer have different thicknesses, so that different reflective regions have different reflectance coefficients. In this way, under the irradiation of light, the reflective structure of the present invention can produce a variety of reflective brightness. Moreover, as the angle of the observer is different, when the observer moves from one angle of view to another, the reflective structure will produce a flickering effect. If the reflective structure is installed on accessories, ornaments, license plates, sign plates or car lights, the reflective structure can be used to reflect the lights of oncoming cars and produce a flickering effect to improve driver's alertness and improve road safety.

The above description is only used to explain the problem to be solved in this case, the technical means to solve the problem, and the effect it produces, etc. The specific details of this case will It will be described in detail in the following embodiments and related drawings.

1‧‧‧Car lights

10‧‧‧Lamp body

20‧‧‧Decoration

100, 200‧‧‧Reflective structure

102‧‧‧Substrate

104‧‧‧Adhesive layer

106’、206’‧‧‧Reflective material

106、206‧‧‧Reflective layer

108‧‧‧Protection layer

A1, R1‧‧‧The first reflective area

A2, R2‧‧‧Second reflective area

A3、R3‧‧‧The third reflective area

A1’, R1’‧‧‧The first area

A2’, R2’‧‧‧Second District

A3’, R3’‧‧‧The third area

D’, D1, D2, D3, H’, H1, H2, H3‧‧‧Thickness

S101, S102, S103‧‧‧Step

In order to make the above and other objectives, features, advantages and embodiments of the present invention more comprehensible, the description of the accompanying drawings is as follows:

FIG. 1 is a flowchart showing a method of manufacturing a reflective structure according to an embodiment of the present invention.

Figures 2 to 4 are cross-sectional views illustrating the manufacturing process of the reflective structure according to an embodiment of the present invention.

FIGS. 5-7 are cross-sectional views illustrating the manufacturing process of the reflective structure according to another embodiment of the present invention.

Fig. 8 is a front view of a vehicle lamp according to an embodiment of the present invention.

The following examples are listed in conjunction with the accompanying drawings for detailed description, but the provided examples are not used to limit the scope of the disclosure, and the description of the structure operation is not used to limit the order of its execution, any recombination of components The structures and the devices produced with equal effects are all covered by this disclosure. In addition, the drawings are for illustrative purposes only, and are not drawn according to the original dimensions. To facilitate understanding, the same elements or similar elements in the following description will be described with the same symbols.

In addition, unless otherwise specified, the terms used in the entire specification and the scope of the patent application usually have each term used here The ordinary meaning in the field, in the content disclosed here, and in the special content. Some terms used to describe the present disclosure will be discussed below or elsewhere in this specification to provide those skilled in the art with additional guidance on the description of the present disclosure.

Regarding the "first", "second", ... etc. used in this text, they do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish elements described in the same technical terms. Or operation only.

Secondly, the terms "include", "include", "have", "contain", etc. used in this article are all open terms, meaning including but not limited to.

Please refer to Figure 1. FIG. 1 is a flowchart showing a method of manufacturing a reflective structure according to an embodiment of the present invention. As shown in FIG. 1, in this embodiment, the manufacturing method of the reflective structure includes steps S101 to S103. The cross-sectional views of the reflective structure 100 at various stages when the reflective structure 100 is manufactured as shown in FIGS. 2 to 4 are exemplified to illustrate the manufacturing method of the reflective structure in this embodiment.

In step S101, a reflective material 106' is formed on the substrate 102. As shown in FIG. 2, in this embodiment, the adhesive layer 104 is provided on the substrate 102 along the surface of the substrate 102. The reflective material 106' is adhered to the substrate 102 via the adhesive layer 104. The reflective material 106' has a thickness D'. Specifically, the thickness can be defined as the height of a surface of the reflective material 106' away from the substrate 102 relative to a surface of the adhesive layer 104 away from the substrate 102.

In some embodiments, the substrate 102 may be, for example, cloth, PET film (Polyethylene terephthalate film, PET film), plastic shell, etc., but the invention is not limited thereto.

Next, in step S102, adjust the reflective material 106' to obtain The reflective layer 106 has a plurality of reflective regions, wherein the reflective regions each have a thickness, and at least two of the reflective regions have different thicknesses. Here, adjusting the reflective material 106' refers to locally reducing or increasing the thickness or volume of the reflective material 106', and the former will be described below first. Please refer to Figure 3. As shown in FIG. 3, the reflective material 106' can be adjusted by removing part of the reflective material 106' to form the reflective layer 106. In some embodiments, the method of removing the reflective material 106' may be to perform at least one etching process, but the invention is not limited thereto. Furthermore, the etching process may use an energy source to destroy the material structure of the reflective material 106' to remove at least part of the reflective material 106', but the present invention is not limited to this. Specifically, first, the reflective material 106' can be divided into different regions according to the number and position of the reflective regions to be formed. In this embodiment, the light-reflecting material 106' is divided into a first region R1', a second region R2', and a third region R3'. Then, the first region R1' is etched through the energy source, so that the first region R1' forms the first reflective region R1. Similarly, the second region R2' and the third region R3' are respectively etched through the energy source, so that the second region R2' and the third region R3' form the second reflective region R2 and the third reflective region R3, respectively.

The first reflective area R1 has a thickness D1. The second light reflection area R2 has a thickness D2. The third light reflection area R3 has a thickness D3. The thickness D1 of the first reflective region R1 is equal to the thickness D3 of the third reflective region R3, and the thickness D1 of the first reflective region R1 and the thickness D3 of the third reflective region R3 are greater than the thickness D2 of the second reflective region R2.

Further, the first light reflection area R1, the second light reflection area R2, and the third light reflection area R3 respectively have a first light reflection coefficient, a second light reflection coefficient, and a third light reflection coefficient. The thickness of the reflective material 106' used in the present invention will affect its reflection. The light coefficient, when the thickness of the reflective material 106' is smaller, the light reflection coefficient becomes smaller; conversely, when the thickness of the light reflective material 106' is larger, the light reflection coefficient becomes larger. Accordingly, based on the same thickness, the third light reflection coefficient of the third light reflection area R3 is equal to the first light reflection coefficient of the first light reflection area R1; based on the different thickness, the third light reflection coefficient of the third light reflection area R3 and the first light reflection area R1 The first light reflection coefficient is greater than the second light reflection coefficient of the second light reflection area R2.

In other words, the first region R1', the second region R2', and the third region R3' are etched to the same or different degrees by the energy source to form the first reflective region R1 and the second reflective region with different thicknesses. R2 and the third reflective area R3. When the thickness of any two reflective regions is the same (for example, the first reflective region R1 and the third reflective region R3), the two reflective regions with the same thickness will have the same reflective coefficient. On the other hand, when the thickness of any two reflective areas are not the same (for example, the first reflective area R1 and the second reflective area R2), the reflective area with a higher thickness will have a larger reflective coefficient, and the reflective area reflects The light will also be brighter.

It should be noted that, in order to make the reflective material 106' have the reflective effect corresponding to the aforementioned "material thickness" and "reflective coefficient", in some embodiments, the reflective material 106' can be made to contain glass beads and edges. A mirror or a glass layer containing microbeads can be achieved, but the invention is not limited to this.

Thereby, when the light source illuminates the reflective layer 106, the first reflective area R1, the second reflective area R2, and the third reflective area R3 of the reflective layer 106 will reflect different degrees of bright light, so that the reflective layer 106 as a whole has a variety of The effect of reflective brightness, and according to the planning of the area, the observer can see the "pattern" according to different reflective effects. Further, when the observer moves from one viewing angle to another viewing angle with respect to the reflective layer 106, the first reflective area R1, the second reflective area R2, and the third The light reflection area R3 will have a fourth light reflection coefficient, a fifth light reflection coefficient and a sixth light reflection coefficient respectively. The fourth light reflection coefficient, the fifth light reflection coefficient and the sixth light reflection coefficient are respectively smaller (or greater than) the first light reflection coefficient, the second light reflection coefficient and the third light reflection coefficient. However, based on the relationship of thickness, the fourth light reflection coefficient is still equal to the sixth light reflection coefficient, and the fifth light reflection coefficient is smaller than the fourth light reflection coefficient and the sixth light reflection coefficient. Furthermore, the difference between the fourth and sixth light reflection coefficients and the fifth light reflection coefficient is different from the difference between the first and third light reflection coefficients and the second light reflection coefficient. In this way, when the observer changes the viewing angle relative to the reflective layer 106, the reflective layer 106 will produce a flicker-like effect. Therefore, for a driver who is driving for a long time and feels tired, as the driver approaches, the flickering effect produced by the reflective layer 106 can attract the driver's attention, so that the driver can be more alert and pay attention to road conditions.

In some embodiments, the energy source may be a laser light source, but the invention should not be limited to this.

In some embodiments, energy sources with different powers may be used to etch the first region R1' and the second region R2' respectively, so that the first reflective region R1 and the second reflective region R2 have different thicknesses.

In some embodiments, the etching reaction time of the first region R1' and the second region R2' can be selectively adjusted, so that the first reflective region R1 and the second reflective region R2 have different thicknesses.

In some embodiments, the third region R3' may be further etched to a different degree than the first region R1', so that the thickness D3 of the third reflective region R3 is between the thickness D1 of the first reflective region R1 and the second reflective region R1. The thickness of the region R2 is between D2. Or, in other embodiments, the thickness D3 of the third reflective area R3 may be smaller For the thickness D1 of the first reflective region R1 and the thickness D2 of the second reflective region R2, the present invention should not be limited thereto. In this way, based on the different thickness, the third light reflection coefficient of the third light reflection area R3 is different from the first light reflection coefficient of the first light reflection area R1. The light-reflecting layer 106 can reflect three different brightness levels under the irradiation of light.

In some embodiments, the thickness of the reflective material 106' is about 0.5 mm to 1 mm, and the depth of the reflective material 106' is removed by performing the aforementioned etching process (that is, the thickness D'of the reflective material 106' and the thickness D1 are respectively The difference between D2 and D3) is about 6.5 microns to 10 microns, but the present invention should not be limited to this. In some embodiments, the depth of removing the reflective material 106' by performing the aforementioned etching process does not exceed the thickness D'of the reflective material 106' (that is, the reflective material 106' is not dug through).

Finally, in step 5103, a protective layer 108 is formed on the reflective layer 106. Please refer to Figure 4. As shown in FIG. 4, the protective layer 108 is formed on the reflective layer 106 to obtain the final reflective structure 100. Specifically, the protective layer 108 covers the upper surfaces of the first reflective region R1, the second reflective region R2, and the third reflective region R3. In this way, the protective layer 108 can protect the reflective layer 106 to prevent the reflective layer 106 from being scratched or peeled off.

With the above structural configuration, the reflective areas will have different reflectance coefficients based on the thickness of the different reflective areas. In this way, when light is irradiated to the reflective structure 100, the reflective areas with different reflective coefficients can reflect different degrees of bright light respectively. Further, as the viewing angle of the observer with respect to the reflective structure 100 is different, the reflective structure 100 can produce a flicker-like effect. In this way, the reflective structure 100 is applied to, for example, badges, license plates, sign plates, and car lighting panels, but the present invention is not limited to this. The flashing effect of the reflective structure 100 can attract the attention of the driver. Reduce the occurrence of traffic accidents.

Please refer to Figures 5-7. FIGS. 5-7 are cross-sectional views illustrating the manufacturing process of the reflective structure according to another embodiment of the present invention. As shown in FIG. 5, the reflective material 206' is adhered to the substrate 102 via the adhesive layer 104. The reflective material 206' has a thickness H'. The reflective material 206' can be divided into different regions according to the number and position of the reflective regions to be formed. In this embodiment, the reflective material 206' is divided into a first area A1', a second area A2', and a third area A3'. The materials of the substrate 102 and the reflective material 206' are the same as or similar to those of the embodiment shown in FIG. 2. Therefore, reference may be made to the aforementioned related descriptions, which will not be repeated here.

Please refer to Figure 6. As shown in Figure 6, in this embodiment, the reflective material 206' can be coated with the reflective material 206 in at least one of the first area A1', the second area A2', and the third area A3'. The thickness or volume of the reflective material 206 is locally adjusted in an at least once manner to form the reflective layer 206. Specifically, in the first area A1', the second area A2', and the third area A3', different amounts of reflective material 206' are sequentially coated on the substrate 102 to form first areas with different thicknesses. The light reflecting area A1, the second light reflecting area A2 and the third light reflecting area A3. Wherein, the thickness H3 of the third light reflecting area A3 is greater than the thickness H1 of the first light reflecting area A1 and the thickness H2 of the second light reflecting area A2. Moreover, the thickness H2 of the second light reflecting area A2 is greater than the thickness H1 of the first light reflecting area A1.

The thickness of the reflective material 206' used in the present invention will affect its reflective coefficient. When the thickness of the reflective material 206' is smaller, the reflective coefficient becomes smaller; conversely, when the thickness of the reflective material 206' is greater, its reflective coefficient The bigger. Accordingly, based on different thicknesses, the first light reflecting area A1, the second light reflecting area A2, and the third light reflecting area A3 respectively have different light reflection coefficients. Specifically, the third anti The third light reflection coefficient of the light area A3 is greater than the first light reflection coefficient of the first light reflection area A1 and the second light reflection coefficient of the second light reflection area A2, and the second light reflection coefficient of the second light reflection area A2 is greater than that of the first light reflection area A1. Reflection coefficient. In this way, the reflective layer 206 can reflect three different brightness levels under the irradiation of light.

In some embodiments, the number of reflective materials 206' coated on the first reflective area A1 and the third reflective area A3 may be the same, so that the thickness H1 of the first reflective area A1 is equal to the thickness H3 of the third reflective area A3. In these embodiments, the first reflective area A1 and the third reflective area A3 have the same reflective coefficient.

Please refer to Figure 7. As shown in FIG. 7, a protective layer 108 is formed on the upper surfaces of the first reflective area A1, the second reflective area A2 and the third reflective area A3 of the reflective layer 206 to obtain the final reflective structure 200. Thereby, through the protection of the protective layer 108, the reflective layer 206 can be prevented from being scratched or peeled off.

In some embodiments, the number and area range of the reflective areas can be flexibly adjusted according to actual operating conditions, and the present invention should not be limited thereto. For example, the light reflecting layer 106/206 may only include the first and second light reflecting areas, or the light reflecting layer 106/206 may further include the fourth or fifth light reflecting area. In some embodiments, the areas of the first reflective area R1/A1, the second reflective area R2/A2, and the third reflective area R3/A3 are equal. In other embodiments, the areas of the first reflective area R1/A1, the second reflective area R2/A2, and the third reflective area R3/A3 are not uniform. The invention should not be limited to this.

In some embodiments, step S103 can be optionally omitted, and the invention should not be limited thereto.

Please refer to Figure 8. Fig. 8 is a front view of a car lamp 1 according to an embodiment of the present invention. As shown in Fig. 8, in this embodiment, the lamp 1 includes The lamp body 10, the decorative plate 20 and the reflective structure 100. The lamp body 10 is arranged in the decorative board 20. The reflective structure 100 is disposed on the surface of the decorative plate 20. The light-reflecting structure 100 is the same as the embodiment shown in FIG. 2, therefore, reference may be made to the aforementioned related descriptions, which will not be repeated here.

Thereby, when the vehicle lamp 1 is illuminated by the light from the oncoming vehicle, the reflective structure 100 can reflect the light from the oncoming vehicle back. In this way, the light-emitting area of the light source of the vehicle lamp 1 is equal to the area of the lamp body 10 and the reflective structure 100. Visually, in addition to increasing the luminous brightness of the lamp 1 to remind the driver of the oncoming car to pay attention to the road conditions, the light from the oncoming car can also be used to increase the brightness of the lamp 1, so that under the same power consumption, Car light 1 can achieve better lighting effects.

In some embodiments, the adhesive layer 104, the reflective layer 106, and the protective layer 108 may be sequentially disposed on the surface of the decorative plate 20. In other words, the decorative plate 20 can be used as the base material 102 in the reflective structure 100.

In some embodiments, the reflective layer 206 can be selectively replaced with the reflective layer 106 to be disposed on the decorative plate 20, and the present invention should not be limited thereto.

From the above detailed description of the specific embodiments of the present invention, it can be clearly seen that the present invention makes the reflective regions in the reflective layer have different thicknesses so that different reflective regions have different reflectance coefficients. In this way, under the irradiation of light, the reflective structure of the present invention can produce a variety of reflective brightness. Moreover, as the angle of the observer is different, when the observer moves from one angle of view to another, the reflective structure will produce a flickering effect. If the reflective structure is installed on accessories, ornaments, license plates, sign plates or car lights, the reflective structure can be used to reflect the lights of oncoming cars and produce a flickering effect to improve driver's alertness and improve road safety.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to the scope of the attached patent application.

100‧‧‧Reflective structure

102‧‧‧Substrate

104‧‧‧Adhesive layer

106‧‧‧Reflective layer

108‧‧‧Protection layer

R1‧‧‧First reflective area

R2‧‧‧Second reflective zone

R3‧‧‧The third reflective area

Claims (16)

A reflective structure, comprising: a substrate; and a reflective layer disposed on the substrate. The reflective layer is composed of a single layer of reflective material including glass beads or scallops, and has a plurality of reflective areas. Each of the reflective regions has a thickness, and the thicknesses of at least two of the reflective regions are different, so that the reflective coefficients of the at least two are different. The light-reflecting structure according to claim 1, wherein the thicknesses of at least the other two of the light-reflecting regions are the same, and the light reflection coefficients of the at least the other two are the same. The light reflecting structure according to claim 1, wherein two of the light reflecting areas are a first light reflecting area and a second light reflecting area, and the thickness of the first light reflecting area is greater than the thickness of the second light reflecting area And the light reflection coefficient of the first light reflection area is greater than the light reflection coefficient of the second light reflection area. The reflective structure according to claim 1, further comprising an adhesive layer disposed between the reflective layer and the substrate. The light-reflecting structure according to claim 1, further comprising a protective layer disposed on the light-reflecting layer. A kind of car light, including: A decorative plate; a lamp body arranged in the decorative plate; and a reflective layer, arranged on the decorative plate, the reflective layer is composed of a single layer of reflective material including glass beads or scallops, and has a plurality of Each of the reflective regions has a thickness, and the thicknesses of at least two of the reflective regions are different, so that the reflective coefficients of the at least two are different. The vehicle lamp according to claim 6, wherein the thicknesses of at least the other two of the reflective areas are the same, and the reflection coefficients of the at least the other two are the same. The vehicle lamp according to claim 6, wherein two of the reflective regions are a first reflective region and a second reflective region, and the thickness of the first reflective region is greater than the thickness of the second reflective region , And the light reflection coefficient of the first light reflection area is greater than the light reflection coefficient of the second light reflection area. The vehicle lamp according to claim 6, further comprising a protective layer disposed on the reflective layer. A manufacturing method of a reflective structure, comprising: forming a single-layer reflective material on a substrate, wherein the single-layer reflective material includes glass beads or scallops; and adjusting the reflective material to obtain a reflective material having a plurality of reflective areas The layer, wherein each of the reflective regions has a thickness, and the thicknesses of at least two of the reflective regions are different, so that the reflective coefficients of the at least two are different. The method according to claim 10, wherein adjusting the reflective material includes: performing at least one etching process on the reflective material to form the reflective layer. The method according to claim 11, wherein the etching process includes etching the reflective material with at least one energy source. The method according to claim 12, wherein the number of the at least one energy source is two, the energy sources have different powers, and the etching process includes etching at least two parts of the reflective material with the energy sources. The method according to claim 11, wherein the etching process includes etching at least two parts of the reflective material with different etching times. The method according to claim 10, wherein adjusting the reflective material comprises: locally coating the reflective material on the formed reflective material at least once to form the reflective layer. The method according to claim 10, further comprising forming a protective layer on the reflective layer.

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