Light emitting unit and method for installing light emitting unit
The light-emitting unit with phosphorescent and reflective materials addresses the collision risk by improving visibility and guiding users around public structures, enhancing safety and aesthetics.
Patent Information
- Application Number
- JP2024116953
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2026-02-03
AI Technical Summary
Existing collision prevention measures for public structures like railway bridges, playground equipment, and parking lot bollards do not adequately address height and width restrictions, and there is a high risk of vehicles and pedestrians colliding with these structures at night.
A light-emitting unit with a display unit using phosphorescent paint is installed on these structures to enhance visibility and guide users, incorporating phosphorescent and reflective materials to improve recognition of height and width limits.
The light-emitting unit effectively attracts attention at night, preventing collisions by enhancing visibility and understanding spatial restrictions, thereby improving the perceived safety and aesthetics of the space.
Smart Images

Figure 2026015992000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a light-emitting unit that is installed on structures such as railway bridges, playground equipment, and parking lot bollards. [Background technology]
[0002] Recently, technologies have been devised to prevent collisions in public structures where collision accidents are likely to occur.
[0003] For example, Patent Document 1 discloses a technology for preventing incoming ships from colliding with a quay at night by providing a synthetic resin containing a phosphorescent material on the ocean side of an impact plate provided on a quay. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Patent Publication No. 2017-155532 Summary of the Invention [Problem to be solved by the invention]
[0005] However, there is a high risk of vehicles and people colliding with public structures at night, and collision prevention measures that take into account restrictions such as height and width limits on structures are not widespread.
[0006] Therefore, the present invention aims to provide a method for drawing the attention of drivers, pedestrians, and users at night, particularly with regard to objects such as railway bridges, playground equipment, and parking lot bollards, to prevent collision accidents, assist in understanding restrictions such as width and height, and improve the favorable impression of a space through spatial presentation. [Means for solving the problem]
[0007] In one aspect of the present invention, there is provided a light-emitting unit provided on an object, the light-emitting unit having a display unit that emits light using phosphorescent paint and a fixing unit for fixing the light-emitting unit to the ground. [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 at night, particularly with regard to objects such as railway bridges, playground equipment, and parking lot bollards, thereby preventing collision accidents, assisting in understanding restrictions such as width and height, and improving the favorability of a space through spatial presentation. [Brief explanation of the drawings]
[0009] [Figure 1] 1A and 1B are diagrams illustrating an example of a light-emitting unit applied to a railway bridge according to a first embodiment of the present invention. [Figure 2] 1A and 1B are diagrams illustrating a detailed example of a light-emitting unit applied to a railway bridge according to a first embodiment of the present invention. [Figure 3] 10A and 10B are diagrams illustrating another example of a light-emitting unit applied to a railway bridge according to the first embodiment of the present invention. [Figure 4] 10A and 10B are diagrams illustrating another example of a light-emitting unit applied to a play equipment according to a second embodiment of the present invention. [Figure 5] 10A and 10B are diagrams illustrating another example of a light-emitting unit according to a third embodiment of the present invention, which is applicable to temporary fences at construction sites and to indoor and outdoor wall surfaces. [Figure 6] 10A and 10B are diagrams illustrating another example of a light-emitting unit applied to a car stop in a parking lot according to the fourth embodiment of the present invention. [Figure 7] FIG. 13 is a diagram illustrating an example of a color sample of a light-emitting unit according to a fifth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the embodiments described below do not unduly limit the content of the present invention described in the claims. Furthermore, not all of the components shown in the embodiments are necessarily essential components of the present invention.
[0011] <Configuration> FIG. 1 is a diagram illustrating an example of a light-emitting unit according to a first embodiment of the present invention.
[0012] In this embodiment, the light-emitting unit 1 is a unit that can be applied to infrastructure structures (objects) such as railway bridges, and is applied to structures so as to draw the attention of drivers of vehicles or pedestrians, particularly at night, to structures that are difficult to see, pose a collision risk, and have height and width restrictions, and to escort (guide) them to appropriate driving or walking routes, as shown in Fig. 1. Here, the railway bridge is an elevated bridge in which a pair of pillars support the tracks over which a railway passes, spanning a road, and the light-emitting unit 1 is configured by arranging phosphorescent material in the height direction of the pillars and the width direction of the bridge girders to notify people of the height of the pillars and the width between the pillars.
[0013] FIG. 2 is a diagram illustrating a detailed example of a light-emitting unit 1 according to a first embodiment of the present invention. As shown in FIG. 2, the light-emitting unit 1 includes: a pair of pillars 22 supporting a bridge girder 21 of a railway bridge; a pair of pillars 22 supporting the bridge girder 21; a pair of pillars 22 supporting the bridge girder 21; a pair of pillars 22 supporting the bridge girder 21; a pair of pillars 22 supporting the bridge girder 21; a pair of pillars 22 supporting the bridge girder 21; a pair of pillars 22 supporting the bridge girder 21; and ... and a pair of pillars 22 supporting the bridge girder 21; and a pair of pillars 22 supporting the bridge girder 21; and a pair of pillars 22 supporting the bridge girder 21; One or more phosphorescent materials 12 are arranged in the height direction of the support pillars 21 within the tunnel space, and phosphorescent materials 13 are arranged in the width direction of the bridge girder 21 formed between a pair of support pillars 22. Furthermore, phosphorescent materials 14 are arranged on the support pillars 22 or on structures arranged in the vicinity of the support pillars 22 so as to form the shape of an arrow indicating a certain direction. Here, the light-emitting unit 1 can also be configured by combining a phosphorescent material and a reflective material. In particular, like the phosphorescent material 11, it is effective to arrange a reflective material or a phosphorescent material that also has a reflective function in the location that becomes the boundary region between the support pillar 22 and the space, i.e., adjacent to the phosphorescent material 11, so that drivers can pay attention to the presence of the pillar at night.
[0014] FIG. 3 is a diagram illustrating another example of a light-emitting unit according to the first embodiment of the present invention. This example is further characterized by the placement of one or more phosphorescent materials 15 on the road. This increases the visibility of the structures and traffic lanes, in addition to the light-emitting unit 1 attached to the structure, and alerts drivers to avoid collisions with the structures. Also, in this example, the phosphorescent material 15 can be combined with a reflective material to react to the mobility vehicle's lights, further enhancing visibility. Furthermore, applying a transparent anti-slip material to the phosphorescent material 15 can prevent falls even during nighttime rain or snow.
[0015] FIG. 4 is a diagram illustrating an example of a light-emitting unit according to a second embodiment of the present invention. This example is characterized by the placement of the light-emitting unit 2 in locations that are difficult to see at night, such as playground equipment (objects) (e.g., zip line towers and slides) installed in parks and public staircases. Zip line towers and slides, in particular, have staircases that reach a certain height, making their use in the dim evening or at night dangerous. Therefore, as shown in FIG. 4(a), phosphorescent material is placed on the handrails and each step of the playground equipment's staircases, in the boundary area between the playground equipment and the surrounding space. Similarly, phosphorescent material is placed on the landing (tower portion), zip line, and slope portion of the playground equipment. As a result, as shown in FIG. 4(b), the phosphorescent material glows at night, alerting users of the playground equipment not to miss the steps or fall off the landing or slope, and escorting (guiding) them along the route from the staircase portion of the tower or slide to the landing (tower portion), zip line, or slope.
[0016] FIG. 5 is a diagram illustrating an example of a light-emitting unit according to a third embodiment of the present invention. This example is characterized by the placement of light-emitting units 3 on indoor and outdoor wall surfaces (objects), such as the side walls of temporary fences at construction sites. Construction sites and temporary fences, in particular, evoke negative impressions for people walking around them, and the darkness around the spaces can be particularly dangerous in the evening and at night. Therefore, as shown in FIG. 5(a), a base of phosphorescent aluminum plate or phosphorescent sheet is attached to the entire side wall of the temporary fence, or painted with phosphorescent paint. On top of that, a transparent printed film or adhesive film printed with a predetermined object, such as an illustrated design like a Christmas tree, art, or text consisting of multiple characters, is attached and arranged in a predetermined layout. As shown in FIG. 5(b), the object-shaped phosphorescent material portion responding to the design of the transparent film material glows at night, creating a work of art. This allows the wall to appear unadorned and white with phosphorescent pigments during the day, but at night, the light begins to glow and a creative image appears. This changes the negative image that passersby have of construction sites, temporary enclosures, and dark walls both indoors and outdoors into a positive one, and the space can also be used to enjoy artworks. This embodiment can be used not only as art in public spaces but also as an advertising medium, and by using the same principle, it can also be used as interior decoration of any size in indoor and outdoor facilities and private homes.
[0017] FIG. 6 is a diagram illustrating an example of a light-emitting unit according to a fourth embodiment of the present invention. This example is characterized by the placement of a light-emitting unit 4 on a car stop (object) in a parking lot. Particularly in unlit parking lots, there is a high risk that a driver will not notice the car stop and cause an accident. Therefore, as shown in FIG. 6(a), by placing one or more phosphorescent materials on the car stop of a parking lot, the location of the car stop can be notified to the driver at night and the driver can be escorted (guided) to the parking spot. Here, as shown in FIG. 6(b), phosphorescent materials can be placed on the top and side surfaces of the car stop in the width and height directions. By placing them in the boundary area between the car stop and the space, in particular, the shape and size of the car stop can be intuitively recognized, even at night, as shown in FIG. 6(c). In addition, by combining phosphorescent material with reflective material to react to the mobility light, visibility can be further improved.
[0018] FIG. 7 is a diagram illustrating an example of a color sample of a light-emitting unit according to a fifth embodiment of the present invention. Conventionally, among the phosphorescent materials (phosphorescent pigments) constituting light-emitting units, the colors capable of achieving high brightness when emitting light at night have been limited to blue, green, and blue-green. Therefore, if you want to change the color to match the atmosphere of a facility, the only method available is to mix another color pigment into the phosphorescent pigment, which poses a problem of significantly reducing brightness. Therefore, in this embodiment, instead of mixing pigments, one or more transparent films are layered on top of a housing provided with a base phosphorescent pigment, making it possible to change the color without reducing brightness.
[0019] Although the embodiments of the present invention have been described above, they can be embodied in various other forms, such as shapes and materials used, and can be implemented with various omissions, substitutions, and modifications. These embodiments, modifications, and omissions, substitutions, and modifications are included within the technical scope of the claims and their equivalents. [Explanation of symbols]
[0020] 1 Lighting unit 2 Lighting unit 3 Lighting unit 4 Lighting unit
Claims
1. A light-emitting unit provided on an object, The light-emitting unit is It has a phosphorescent material, The light-emitting unit is a light-emitting unit in which the phosphorescent material is placed in a boundary area between an object and a space.
2. 10. The light-emitting unit according to claim 1, The light-emitting unit, wherein the object is one of a railway bridge, playground equipment, and a car stop.
3. The light emitting unit of claim 1 , further comprising a reflector.
4. 2. The lighting unit according to claim 1, wherein the object is a railway bridge; The light-emitting unit is configured such that the phosphorescent material is arranged in the height direction of the support pillars of the railway bridge and in the width direction of the bridge girder.
5. 2. The light-emitting unit according to claim 1, wherein the object is a temporary enclosure; A light-emitting unit in which the phosphorescent material having a predetermined shape is placed on the side wall of the temporary enclosure.
Citation Information
Patent Citations
Collision prevention equipment
JP2017155532A