JP2023116330A - video projection system - Google Patents

Abstract

To provide a video projection system that can display a clear video on an outer surface of a building.SOLUTION: A video projection system 1, which projects videos on an outer surface 2 of a building, has: a plurality of balconies 8 that is provided side by side with intervals in a vertical direction; a plurality of support members 7 that is provided side by side with intervals in a width direction of the plurality of balconies 8, extends in a long-shaped way in the width direction of the plurality of balconies 8, and is attached to the plurality of balconies 8; two retaining members 5 that are mutually separated in the vertical direction, extend in the long-shaped way in the vertical direction, and are attached to the plurality of support members 7; a surface member 6 that is laid between the two retaining members 5; and a plurality of illumination devices 3, in which respective illumination devices 3 are attached to the outer surface 2 of the building, and light 4 corresponding to a pixel of the video is projected onto the surface member 6 from an observer side.SELECTED DRAWING: Figure 4

Description

The present invention relates to image projection systems.

2. Description of the Related Art An image projection system that projects an image onto the outer surface of a building is known (see Patent Document 1, for example).

JP 2016-136196 A

It is desirable that the image projected on the exterior of the building be sharp.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an image projection system capable of displaying a clear image on the outer surface of a building.

A video projection system of the present invention is a video projection system for projecting a video onto the outer surface of a building, comprising a plurality of balconies arranged side by side at intervals in the vertical direction, and a plurality of balconies spaced apart in the width direction of the plurality of balconies. A plurality of support members provided side by side, each extending in the vertical direction and attached to the plurality of balconies, and a plurality of support members vertically spaced apart from each other, each extending in the width direction of the plurality of balconies in a long shape, and the It has two holding members attached to a plurality of supporting members, a surface member bridged between the two holding members, and a plurality of lighting devices, and each of the lighting devices is attached to the outer surface of the building. and a system for projecting light corresponding to the pixels of the image onto the plane member from the observer side.

The image projection system of the present invention is preferably a system in which each of the lighting devices is attached to one of the holding members in the above configuration.

In the image projection system of the present invention, in the configuration described above, it is preferable that each of the lighting devices project the light onto the planar member in a rectangular shape.

According to the present invention, it is possible to provide an image projection system capable of displaying a clear image on the outer surface of a building.

1 is an external view showing an image projection system according to one embodiment of the present invention; FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1; FIG. 2 is a cross-sectional view taken along the line BB of FIG. 1; FIG. 4 is an enlarged view of a C portion in FIG. 3; FIG. 2 is an enlarged view of part D in FIG. 1;

Embodiments of the present invention will be exemplified below with reference to the drawings.

As shown in FIGS. 1 to 5, in one embodiment of the present invention, an image projection system 1 is a system for projecting images onto the outer surface 2 of buildings such as hotels, office buildings, commercial facilities, and sports facilities.

The video projection system 1 has a plurality of lighting devices 3 . In particular, as shown in FIGS. 3-5, each illumination device 3 is mounted on the exterior surface 2 of the building and projects light 4 corresponding to the pixels of the image onto the exterior surface 2 of the building from the viewer's side. Note that "projecting from the observer's side" means projecting so that the observer can see not the transmitted light but the reflected light from the projected portion. Each illumination device 3 has a light source such as an LED (Light Emitting Diode), and can emit light 4 of a predetermined color at a predetermined timing based on computer control. That is, the plurality of lighting devices 3 can project images (moving or still images) on the outer surface 2 of the building under computer control.

As shown in FIGS. 4 and 5, each lighting device 3 projects light 4 onto a plane member 6 that spans between two holding members 5, and the other holding member 5 (hereinafter referred to as second holding member 5). It is attached to one holding member 5 (hereinafter also referred to as the first holding member 5a) provided below the member 5b). Each holding member 5 is attached to the outer edge of a plurality of balconies 8 via a plurality of support members 7 . As shown in FIG. 3, the plurality of balconies 8 are arranged side by side with an interval in the vertical direction. Between the plurality of balconies 8, openings 9 in which windows or the like are arranged are provided. Note that a configuration in which the opening 9 is not provided may be adopted. For convenience of explanation, in the following description, the depth direction of the balcony 8 (the direction perpendicular to the paper surface in FIG. 1) is also referred to as the front-rear direction, and the width direction of the balcony 8 is also referred to as the left-right direction (the left-right direction in FIG. 1). say. The plurality of support members 7 are arranged side by side with an interval in the left-right direction, each elongated in the up-down direction, and attached to the plurality of balconies 8 .

As shown in FIGS. 1 to 5, the plurality of lighting devices 3 form a plurality of rows spaced apart in the vertical direction. In addition, the lighting devices 3 in each row are arranged at intervals in the left-right direction. The image projection system 1 has two holding members 5 and a plane member 6 for one row of lighting devices 3 . A row of lighting devices 3 and corresponding surface members 6 have intermittent portions 10 where these members are not provided at appropriate locations in the horizontal direction in order to optimize solar radiation, natural ventilation, and the like. In the illustrated example, a plurality of rows of lighting devices 3 are provided between two adjacent balconies 8 . The configuration is not limited to such a configuration, and for example, a configuration in which only one row of lighting devices 3 is provided between two adjacent balconies 8 may be employed. The first holding member 5a corresponding to the lighting device 3 in one row also serves as the second holding member 5b corresponding to the lighting device 3 in another row.

The two holding members 5 corresponding to the lighting devices 3 in each row are separated from each other in the vertical direction, elongated in the horizontal direction, and attached to a plurality of supporting members 7 . The plane member 6 includes a plane member main body 6a forming a rectangular flat outer surface (irradiated surface), a first connecting portion 6b connecting the plane member main body 6a to the first holding member 5a, and a plane member main body 6a. and a second connecting portion 6c that connects to the second holding member 5b. The structures of the first connecting portion 6b and the second connecting portion 6c are not particularly limited. In addition, in the illustrated example, the first connecting portion 6b includes a plurality of rod-shaped members. The plane member main body 6a is, for example, a film material formed of cloth or the like and having flexibility (softness). For example, a plate material may be used instead of the film material.

As shown in FIG. 4, the first connecting portion 6b is provided inside the second connecting portion 6c in the front-rear direction, and each lighting device 3 is located on the upper surface of the first holding member 5a in the front-rear direction. It is attached to the outer part of the Then, as shown in FIG. 5, each illumination device 3 projects light 4 in a rectangular shape onto the plane member main body 6a. Note that the rectangular shape also includes a rectangular shape with four rounded corners. The light 4 emitted from each illumination device 3 forms a rectangular shape extending vertically on the plane member main body 6a, as indicated by hatching in FIG.

According to this embodiment, each lighting device 3 attached to the outer surface 2 of the building is attached to the surface member 6 that bridges between the two holding members 5 that are attached to the plurality of balconies 8 via the plurality of support members 7. A clear image can be displayed on the outer surface 2 of the building having a plurality of balconies 8 by the configuration in which the light 4 corresponding to the pixels of the image is projected from the viewer's side. Further, according to the present embodiment, each lighting device 3 projects the light 4 onto the surface member 6 in a rectangular shape, thereby suppressing interference between the light 4 corresponding to the pixels and making the image even clearer. can be achieved. Therefore, for example, a large-scale image can be projected clearly over the entire outer surface 2 of the building.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention.

Therefore, the image projection system 1 of the embodiment described above can be modified in various ways, for example, as described below.

The image projection system 1 of the above-described embodiment is an image projection system 1 that projects an image onto the outer surface 2 of a building, and includes a plurality of balconies 8 arranged side by side with a gap in the vertical direction, and the width of the plurality of balconies 8. A plurality of support members 7 arranged side by side with a gap in the direction, each extending in the vertical direction in a long shape, and attached to the plurality of balconies 8, and a plurality of support members 7 vertically spaced apart from each other in the width direction of the plurality of balconies 8. It has two holding members 5 elongated and attached to a plurality of supporting members 7, a surface member 6 bridged between the two holding members 5, and a plurality of lighting devices 3, and each lighting device Various modifications are possible as long as the device 3 is attached to the outer surface 2 of the building and the light 4 corresponding to the pixels of the image is projected onto the surface member 6 from the observer side.

For example, the image projection system 1 is not limited to a configuration in which each lighting device 3 projects the light 4 in a rectangular shape. Further, the image projection system 1 is not limited to the configuration in which the first holding members 5a corresponding to the lighting devices 3 in one row also serve as the second holding members 5b corresponding to the lighting devices 3 in another row.

Note that the image projection system 1 of the above-described embodiment is preferably a system in which each lighting device 3 is attached to one holding member 5 in the above configuration.

In the above configuration, the image projection system 1 of the above-described embodiment is preferably a system in which each lighting device 3 projects light 4 onto the surface member 6 in a rectangular shape.

REFERENCE SIGNS LIST 1 video projection system 2 outer surface 3 lighting device 4 light 5 holding member 5a first holding member 5b second holding member 6 surface member 6a surface member main body 6b first connecting portion 6c second connecting portion 7 supporting member 8 balcony 9 opening 10 intermittent part

Claims (3)

A video projection system for projecting a video on the outer surface of a building,
Multiple balconies arranged side by side with intervals in the vertical direction,
a plurality of support members arranged side by side at intervals in the width direction of the plurality of balconies, each extending in an elongated shape in the vertical direction, and attached to the plurality of balconies;
two holding members spaced apart from each other in the vertical direction, each elongated in the width direction of the plurality of balconies, and attached to the plurality of support members;
a surface member bridged between the two holding members;
a plurality of lighting devices;
A system in which each of the lighting devices is mounted on the outer surface of the building and projects light corresponding to the pixels of the image onto the surface member from the viewer's side. 2. The system of claim 1, wherein each said lighting device is attached to one said retaining member. 3. The system of claim 1 or 2, wherein each lighting device projects the light onto the surface member in a rectangular shape.

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