Luminous and reflective integrated tape, cylindrical pole, road surface 3D unit, light-emitting unit, and method for installing the light-emitting unit.

Abstract

The purpose is to provide methods to raise awareness among drivers and pedestrians at night, prevent collisions, assist in understanding restrictions such as width and height, and improve the perception of a space through spatial design. [Solution] A light-emitting unit provided on an object, wherein the light-emitting unit has a phosphorescent layer made of a phosphorescent material and a reflective layer made of a reflective material, and the reflective layer is formed on top of the phosphorescent layer.

Description

Technical Field

[0006] , ,

[0005] ,

[0001] The present invention relates to a light-emitting unit installed in commercial materials such as railway bridges, structures such as stairs, roads, outdoor areas, and disaster prevention.

Background Art

[0002] Recently, technologies for preventing collisions have been devised in public structures where collision accidents are likely to occur.

[0003] For example, in Patent Document 1, a technique for preventing the collision of an incoming ship with a quay wall at night is disclosed by providing a synthetic resin containing a phosphorescent material on the ocean side of a shock-absorbing plate provided on the quay wall.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, there are many risks of vehicles or people colliding with public structures at night, and collision prevention measures considering restrictions such as height restrictions and width restrictions of structures have not become widespread. Also, as other problems, there are risks of tripping, falling, or slipping when people or vehicles pass through stairs, cliffs, etc. at night. Furthermore, due to darkness, it may be difficult to recognize people, buildings, etc., and there may be possibilities of contact or getting lost on the road.

[0006] Therefore, the present invention aims to provide a method for attracting the attention of drivers, pedestrians, and users of objects, particularly railway bridges, at night to prevent collisions, assist in understanding restrictions such as width and height, and improve the perception of a space through spatial design. Another objective is to provide a method for proactively detecting danger in spaces where there is a risk of falling or slipping, such as stairs and cliffs at night. [Means for solving the problem]

[0007] In one aspect of the present invention, a light-emitting unit provided on an object, wherein the light-emitting unit has a phosphorescent layer made of a phosphorescent material and a reflective layer made of a reflective material, and the reflective layer is formed on top of the phosphorescent layer. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a method for attracting the attention of drivers, pedestrians, and users of objects, particularly railway bridges, buildings, building materials, people, and animals, at night to prevent collisions, assist in understanding restrictions such as width and height, facilitate accurate movement, support visual recognition, and improve the perception of a space through spatial design. [Brief explanation of the drawing]

[0009] [Figure 1] This figure illustrates an example of a light-emitting unit applied to a railway bridge according to a first embodiment of the present invention. [Figure 2] This figure illustrates a detailed example of a light-emitting unit applied to a railway bridge according to a first embodiment of the present invention. [Figure 3] This figure illustrates another example of a light-emitting unit applied to a railway bridge according to the first embodiment of the present invention. [Figure 4] This figure illustrates an example of a light-emitting body according to the first embodiment of the present invention. [Figure 5] This figure illustrates an example of a schematic diagram of a cross-section of a light-emitting body according to the first embodiment of the present invention. [Figure 6] This figure illustrates an example of a light-emitting unit according to a second embodiment of the present invention. [Figure 7] This figure illustrates an example of the application of a light-emitting unit applied to a road shoulder according to a second embodiment of the present invention. [Figure 8] This figure illustrates an example of a light-emitting unit according to a third embodiment of the present invention. [Figure 9] This figure illustrates an example of the application of a light-emitting unit to a staircase according to a third embodiment of the present invention. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described below with reference to the drawings. The embodiments described below are not intended to unduly limit the scope of the present invention as described in the claims. Furthermore, not all components shown in the embodiments are necessarily essential components of the present invention.

[0011] <Structure> Figure 1 is a diagram illustrating an example of a light-emitting unit according to the first embodiment of the present invention.

[0012] In this embodiment, the light-emitting unit 1 is a unit applicable to infrastructure structures (target objects) such as railway bridges. As shown in Figure 1, it is applied to structures to attract the attention of drivers operating vehicles or pedestrians, especially at night, to structures with height and width restrictions that are difficult to see and pose a collision risk, and to guide them to appropriate driving or walking routes. Here, the railway bridge is an elevated bridge that spans a road, with a pair of pillars supporting the railway tracks through which the railway passes. The light-emitting unit 1 is configured by arranging multiple light-emitting elements, each composed of phosphorescent material and reflective material, in the height direction of the pillars and the width direction of the bridge girder, respectively, in order to inform people of the height of the pillars and the width between the pillars. In this case, if the light-emitting element constituting the light-emitting unit 1 is composed solely of phosphorescent material, the phosphorescent material that emits light at night cannot be seen when illuminated by headlights from a car or other vehicle. Conversely, if it is composed solely of reflective material, the reflective material does not emit light without a light source such as a headlight, and does not emit light unless the light hits it at a right angle. Furthermore, if it is installed on an inclined wall or ground surface, it will not emit light because the light will not hit it at a right angle. Therefore, if the individual phosphorescent material and reflective material are arranged adjacent to each other, double losses occur in terms of material, design, space, construction process, and cost, and the luminescent area of ​​each also decreases, resulting in a loss of performance for the light-emitting element. In this embodiment, the light-emitting element has a layered structure, characterized by having a reflective layer made of reflective material on top of a phosphorescent layer made of phosphorescent material. As a result, the phosphorescent material emits light at night, and the reflective material emits light when directly illuminated by car headlights. Furthermore, by using a layered structure for the light-emitting material, the phosphorescent and reflective materials, which have substantially the same surface area, are arranged to overlap on the substrate or object, thus ensuring space for each and guaranteeing a wide range of design possibilities. In particular, by allowing the color of each of the phosphorescent and reflective materials to be selected from multiple options, the range of spatial design possibilities can be expanded.

[0013] Figure 2 is a diagram illustrating a detailed example of a light-emitting unit according to the first embodiment of the present invention. As shown in Figure 2, the light-emitting unit 1 is composed of phosphorescent material and reflective material, and comprises: a light-emitting body 11 positioned in the height direction of each support column 22 to indicate the height of the pair of support columns 22 that support the bridge girder 21 of the railway bridge; a light-emitting body 12 positioned in the height direction of the support columns 22 to indicate the depth of the tunnel formed by the bridge girder 21 and the support columns 22; a light-emitting body 13 positioned in the width direction of the bridge girder 21 to indicate the width of the pair of support columns 22; a light-emitting body 14 to indicate the width of the pair of support columns 22 and to escort (guide) drivers and pedestrians to the route they should take; and a light-emitting body 15 to indicate the width of the support columns on the road surface. Here, the phosphorescent material is composed of substances such as zinc sulfide or strontium aluminate that have the property of storing and releasing light energy, absorbing sunlight during the day and emitting light at night. The reflective material is composed of a translucent retroreflective material, which can also be formed by spraying glass beads. Each phosphorescent and reflective material is configured as a seal via an adhesive and can be attached to a structure or applied directly to a structure. The light-emitting body 11 is placed in the boundary region of the support column 22 between the bridge girder 21 and the tunnel space formed by the support column 22. One or more light-emitting bodies 12 are placed in the height direction within the tunnel space of the support column 21, and the light-emitting body 13 is placed in the width direction formed between a pair of support columns 22 of the bridge girder 21. In addition, the light-emitting body 14 is placed on the support column 22 or a structure placed near the support column 22 in the shape of an arrow indicating a certain direction. Furthermore, the light-emitting body 15 is placed on the road surface to indicate the distance between the support columns.

[0014] Figure 3 illustrates another example of a light-emitting unit according to the first embodiment of the present invention. As described above, by placing one or more light-emitting bodies 15 composed of phosphorescent material and reflective material on the road, in addition to the light-emitting unit 1 attached to the structure, the visibility of structures and warnings of traffic lanes can be enhanced, and drivers can be alerted to avoid collisions with structures. Furthermore, in this example as well, visibility can be further enhanced by using phosphorescent material and reflective material 15 that react to the lights of mobility vehicles. In addition, by applying a transparent anti-slip material to the phosphorescent material and reflective material 15, falls can be prevented even when it rains or snows at night.

[0015] FIG. 4 is a diagram for explaining an example of a light emitter according to the first embodiment of the present invention. As described above, when applying a phosphorescent material and a reflective material to each column or the road surface as the emitter constituting the light emitting unit 1, as described above, particularly for a vehicle approaching a structure, the reflective material does not emit light unless light hits it at a right angle. Further, there has been a problem that even when installed on an oblique wall surface or a ground plane, the reflective material does not emit light because light does not hit it at a right angle. Therefore, as shown in FIG. 4, by using a three-dimensional column (column pole) as the base material of the phosphorescent material and the reflective material, as the light emitting unit 110, the reflective material can emit light regardless of the irradiation angle of the vehicle's headlight. Further, when it is necessary to install on a wall surface or the like, a horizontal adhesive surface can also be provided by making the column into a kamaboko shape (semicylindrical pole) cut vertically.

[0016] Figure 5 illustrates an example of a schematic diagram of a cross-section of a light-emitting body according to the first embodiment of the present invention. In this example, the light-emitting unit 120 is composed of multiple layers, each made of materials having different properties and characteristics. As an example, as shown in Figure 5, from top to bottom, it is composed of a surface protection layer 121 made of a surface protection film (weather-resistant laminate, hard coat film, etc.), a reflective layer 122 made of a translucent retroreflective material (having a desired color such as blue), a base layer 123 made of a transparent resin film, a phosphorescent layer 124 made of phosphorescent paint, an opacity layer 124 made of white paint, an adhesive layer 125 made of outdoor adhesive, and an adhesive protective layer 126 made of release paper. By having the adhesive layer 125 in this way, the light-emitting unit 120 can be configured in a seal-like manner and can be attached as line tape to objects or base materials of various shapes, such as flat or three-dimensional objects. It can also be made into a cylindrical winding type like cellophane tape and cut to the desired length for use. Each layer performs its own function; for example, the surface protection layer 121 provides reflective performance and durability (weather resistance, water resistance, flame resistance, abrasion resistance, etc.), the reflective layer 122 provides reflective performance and durability (weather resistance, water resistance, flame resistance, etc.), the base layer 123 provides brightness performance and durability (weather resistance, water resistance, flame resistance, etc.), the phosphorescent layer 124 provides brightness performance, adhesion to the base material, and durability (weather resistance, water resistance, flame resistance, etc.), the concealing layer 125 provides brightness performance, and the adhesive layer 126 provides adhesive strength to each adhesive medium. Therefore, depending on the function, the material, area, and thickness can be considered, and the presence or absence of each layer can also be considered. The luminescent material used in this example can be applied to objects such as the railway bridge mentioned above. Furthermore, it can be widely applied to road studs and parking lots for traffic safety, nighttime construction sites, stairs, steps, and handrails in general facilities such as indoor and outdoor buildings, sign design and spatial design, and everyday goods such as outdoor equipment, apparel, helmets, and general merchandise, as well as disaster prevention and safety equipment. In addition to individual processing, it can also be processed on-site to any length or size as a general-purpose product such as tape.

[0017] FIG. 6 is a diagram for explaining an example of a light-emitting unit according to the second embodiment of the present invention. The light-emitting bodies constituting the light-emitting unit in the present embodiment each have a three-dimensional shape, and by forming a reflective material on the upper part of the energy storage material, the energy storage material and the reflective material can each secure an equal space and exhibit their respective functions of energy storage and reflection. Further, the three-dimensional shape of each light-emitting body has a design property. The light-emitting unit 130 shown in FIG. 6(a) has a design in which a regular polyhedral crystal emits light. The light-emitting unit 140 shown in FIG. 6(b) and the light-emitting unit 150 shown in FIG. 6(c) each have a design in which the curved surface shape can be changed according to the respective installation locations and illumination incident angles.

[0018] FIG. 7 is a diagram for explaining an application example of the light-emitting unit applied to the road shoulder according to the second embodiment of the present invention. As shown in FIG. 7, by arranging the light-emitting unit composed of a plurality of any of the above-described light-emitting bodies 130 to 150 as a road surface 3D unit on the road shoulder on the cliff side of the roadway (or sidewalk), it is possible to prevent a vehicle (or pedestrian) from slipping at night. Further, in a place where it is difficult to recognize people, buildings, etc. due to darkness and there is a possibility of contact or getting lost on the road, by enhancing the recognition effect in the dark for the object by this unit, it is also possible to prevent contact and getting lost on the road. In particular, since the light-emitting unit is composed of a plurality of light-emitting bodies each composed of an energy storage material and a reflective material, it can emit light in the darkness at night and can also emit light by reflecting the headlight of a vehicle.

[0019] Figure 8 is a diagram illustrating an example of a light-emitting unit according to a third embodiment of the present invention. In this embodiment, the light-emitting units 160 and 170 are composed of multiple light-emitting elements. The light-emitting unit 160 shown in Figure 8(a) is composed of three triangular light-emitting elements, and the light-emitting unit 170 shown in Figure 8(b) is composed of five square-shaped light-emitting elements. Thus, as shown in Figure 9, demonstration experiments have shown that the visual effect created by continuously arranging light-emitting elements having a predetermined shape causes pedestrians to spontaneously pay attention to steps and other uneven surfaces. Furthermore, pedestrian safety can be further ensured by applying an anti-slip treatment to the light-emitting units.

[0020] Although embodiments of the invention have been described above, these can be implemented in various other forms, such as shape and materials used, and can be implemented with various omissions, substitutions, and modifications. These embodiments and variations, as well as those with omissions, substitutions, and modifications, are included within the technical scope of the claims and their equivalents. [Explanation of Symbols]

[0021] 1. Light-emitting unit 2. Light-emitting unit 3. Light-emitting unit 4. Light-emitting unit

Claims

1. A light-emitting unit provided on an object, The aforementioned light-emitting unit is It has a phosphorescent layer made of phosphorescent material and a reflective layer made of reflective material, A light-emitting unit characterized in that a reflective layer is formed on top of the phosphorescent layer.

2. A light-emitting unit according to claim 1, The aforementioned object is a railway bridge, which is a light-emitting unit.

3. A light-emitting unit according to claim 1, wherein the surface area of ​​the phosphorescent material and the reflective material are substantially the same.

4. A light-emitting unit according to claim 1, wherein the reflective material is a glass bead.

5. A light-emitting unit according to claim 1, wherein the target object is any of the following: structures at night construction sites, road studs, structures in parking lots, stairs, steps, handrails, signs, outdoor equipment, apparel, helmets, and general merchandise.

6. A light-emitting unit according to claim 1, further comprising an adhesive layer that can be attached to the object.

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