JPH11232908A - Stadium lighting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the occurrence of glare which obstructs games or game watching. SOLUTION: By providing a large number of reflection means 5 on the ceiling 3 of a stadium illuminating light from light projectors 4 is reflected to light the inside of the stadium from the above. By adjusting the reflection angle or the reflectivity of the reflection means among the inside of the stadium the illuminance of a game area playing games is set higher than that of the audience seats. The reflecting faces of the reflection means are formed into the reflecting faces comprising planes, a large number of recessed planes and protrusions planes. The illuminating light of the light projectors 5 is used as diffusion reflection light. The illuminating light is controlled by the used of the ceiling having a large number of planar reflection faces of the same reflection angles.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting method for a stadium, and more particularly to a lighting method for a covered stadium.

[0002]

2. Description of the Related Art Conventionally, in a covered sports stadium such as a gymnasium or a dome stadium, a plurality of floodlights are arranged at high places around a competition area where a competition is performed, and illumination light from these floodlights is used.
It illuminated the competition area directly.

FIG. 4 is an explanatory view showing a conventional stadium lighting method. In the figure, reference numeral 1 denotes a competition area for various competitions, 2 denotes a spectator seat, 3 denotes a ceiling covering the stadium, and 4 denotes a plurality of floodlights for illuminating the stadium. In this case, each projector 4
Are arranged around the competition area 1, for example, at a high place above the spectator seat 2, and illumination light is emitted from each projector 4 to the competition area 1.

[0004]

However, in such a conventional stadium lighting method, the game area 1 is directly illuminated by the floodlight 4 disposed at a high place. The glare occurs when the illumination light from the player directly enters the eyes of the athlete or the referee, hindering the game in some cases, and causes the same problem for the spectators in the spectator seats. Further, at the time of maintenance and inspection, it is necessary to perform temporary maintenance of the floodlight 4 using a scaffold or a crane or the like, and there is a problem that the work load at the time of maintenance and inspection is large. The present invention has been made to solve such a problem, and an object of the present invention is to provide a stadium lighting method capable of reducing a work load at the time of maintenance and inspection.

[0005]

In order to achieve such an object, a method of illuminating a stadium according to the present invention comprises providing a large number of reflecting means on a ceiling of a stadium, and illuminating light from a projector by each reflecting means. The light is reflected to illuminate the stadium from above. Further, the illuminance of the competition area where the competition is performed from the spectator seat in the stadium is adjusted by adjusting the reflection angle or the reflectance of the reflection means. Further, as the reflection means, one having a reflection surface composed of a flat surface, a concave surface or a convex surface is used. Further, as the reflection means, one having a reflection surface composed of a large number of irregularities is used. Further, as the reflection means, one having a reflection surface for diffusing and reflecting the illumination light from the light projector is used. Also,
As the reflection means, one having a large number of planar reflection surfaces having the same reflection angle is used.

[0006]

Next, the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a stadium illuminating method according to an embodiment of the present invention. In FIG. 1, the same or equivalent parts as those described above (see FIG. 4) are denoted by the same reference numerals. In the present invention, a large number of reflecting means 5 are provided on the ceiling 3 of the stadium to reflect the illumination light from the projector 4 and illuminate the inside of the stadium from above.

Accordingly, the location of the light projector 4 is not so limited, and the light projector 4 can be arranged at an arbitrary position by adjusting the reflection angle of the reflecting means 5, so that a scaffold or a crane can be used at the time of maintenance as in the prior art. It is not necessary to use any of them, and the work load at the time of maintenance and inspection can be reduced. Also, since the reflected light softened from above is applied to the athlete or the referee who competes in the competition area 1 or the spectator in the spectator seat 2, the illumination is close to nature as in the case of performing outdoors. Is obtained, and the occurrence of glare is reduced.

FIG. 2 is an explanatory diagram showing a configuration example of the reflection means. FIG. 2A has a reflecting surface 51 formed of a flat surface.
By adjusting each time, the illumination light from the light projector 4 can be reflected in a desired direction and illumination can be performed efficiently.

FIG. 2B has a reflecting surface 52 having a concave surface, and the illumination light from the projector 4 can be focused on a desired area as compared with FIG. 2A. This makes it possible to locally increase the illuminance of the position of the referee or the spectator in the competition area 1. FIG. 2 (c)
Has a reflective surface 53 consisting of a convex surface, and FIG.
As compared with (a), the illumination light from the projector 4 can be diffused more efficiently.

FIG. 2D has a reflecting surface 54 on which a large number of irregularities are formed. In this case, the number of convex portions is 2
Since the light source is the next light source, the game area 1 can be illuminated by a large number of light sources as compared with FIG. 2A, and shadows generated in the game area 1 can be efficiently reduced.

FIG. 2E has a reflecting surface 55 in which fine irregularities are formed on a plane by embossing, satin finishing or the like. In particular, in the case of satin finish, the reflecting surface 55 has the same effect as frosted glass, so that the illumination light from the projector 4 is irregularly reflected. Therefore, the competition area 1 can be illuminated with soft illumination light, as in the case of competing outdoors on a cloudy day.

FIG. 2 (f) has many small reflecting surfaces 56 having substantially the same angle. In this case, each reflecting surface 56
Are formed at substantially the same angle, so that FIG.
Similarly to the above, the illumination light from the light projector 4 can be reflected in a desired direction and illumination can be performed efficiently. In addition, each reflection surface 5
By adjusting the angle of 6, the illumination light can be reflected in an arbitrary direction without depending on the mounting angle of the reflection means 5.

In the above description, any material may be used as the reflecting surface as long as it has a high reflectivity, and the weight can be reduced by using an aluminum plate or a plastic resin plate. Further, the reflection means 5 may be formed by coating a thin film having a high reflectance as a reflection surface on the surface of the plate member.

In the above description, a case where a large number of reflecting means 5 are provided on the ceiling 3 of the stadium has been described as an example.
Each reflecting means 5 may be constituted by the inner wall member of the ceiling 3 itself. In this case, the inner wall surface of the ceiling 3 may be divided into a large number and have an appropriate angle and shape, so that it is not necessary to arrange the reflecting means 5 separately from the ceiling 3, and the equipment cost can be reduced.

In the above description, the competition area 1
Also, the case where the spectator seat 2 is illuminated has been described as an example. However, as shown in FIG. 3, the competition area 1 may be mainly illuminated. In this case, the competition area 1 is mainly illuminated by the reflection means 5 provided above the competition area 1.

As described above, by increasing the illuminance of the competition area 1 as compared to the spectator seat 2, the spectator seat 2 looks dark from a player or a referee in the competition area 1, and it is easy to concentrate on the competition. . In addition, the other spectators 'seats 2 also appear dark from the spectators in the spectators' seats 2, so that it is easy to concentrate on watching games in the competition area 1 with high illuminance. Furthermore, the lighting for each seat is reduced, and the equipment and power required for lighting the seats can be reduced, so that economically efficient lighting can be realized as a lighting system for the entire stadium.

In the above description, the case where the illumination means 5 provided on the ceiling 3 is irradiated with the illumination light from the light projector 4 and reflected is described as an example. That is, the method may be used in combination with a method of directly illuminating the game area 1 from the floodlight 4. Further, in the conventional lighting method, the reflecting means 5 may be provided on the ceiling 3 so that the illumination light leaking to the ceiling 3 out of the illumination light from the projector 4 may be reflected to the competition area 1. This makes it possible to effectively use the illumination light that has been wasted by the conventional illumination method, and realize economically efficient illumination.

[0018]

As described above, according to the present invention, a large number of reflecting means are provided on the ceiling of the stadium, the illumination light from the projector is reflected by the respective reflecting means, and the inside of the stadium is illuminated from above. Things. Therefore, athletes and referees competing in the competition area, or spectators in the audience seats,
Since the illumination light is emitted from above, illumination similar to nature is obtained and the occurrence of glare is reduced, as in the case where a game is played outdoors. Further, the location of the light projector is not so limited, and the light projector can be arranged at an arbitrary position by adjusting the reflection angle of the reflection means 5.

Further, the reflection angle or the reflectance of the reflection means is adjusted to increase the illuminance of the competition area where the competition is performed from the spectator seat in the stadium. Will appear darker, making it easier to concentrate on the competition. In addition, the other audience seats also appear dark from the audience at the audience seats, which makes it easier to concentrate on watching competitions in a competition area with high illuminance. Furthermore, the lighting for each seat is reduced, and the equipment and power required for lighting the seats can be reduced, so that economically efficient lighting can be realized as a lighting system for the entire stadium.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a stadium lighting method according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a configuration example of a reflection unit.

FIG. 3 is an explanatory view showing another stadium lighting method according to the present invention.

FIG. 4 is an explanatory view showing a conventional stadium lighting method.

[Explanation of Signs] 1 ... Competition area, 2 ... Audience seat, 3 ... Ceiling, 4 ... Floodlight,
5. Reflecting means.

Claims (8)

[Claims] 1. A stadium lighting method for illuminating a covered stadium such as a gymnasium or a dome stadium, wherein a number of reflecting means are provided on a ceiling of the stadium, and illumination light from a floodlight is reflected by each reflecting means. A stadium lighting method characterized by illuminating the inside of a stadium. 2. The stadium lighting method according to claim 1, wherein the illuminance of a competition area where a competition is performed from a spectator seat in the stadium is adjusted by adjusting a reflection angle or a reflectance of the reflection means. Stadium lighting method. 3. The stadium lighting method according to claim 1, wherein the reflecting means has a flat reflecting surface. 4. The stadium lighting method according to claim 1, wherein the reflecting means has a concave reflecting surface. 5. The stadium lighting method according to claim 1, wherein the reflecting means has a reflecting surface formed of a convex surface. 6. The stadium lighting method according to claim 1, wherein the reflecting means has a reflecting surface having a large number of irregularities. 7. The stadium illuminating method according to claim 1, wherein the reflecting means has a reflecting surface for diffusing and reflecting illumination light from the projector. 8. The stadium lighting method according to claim 1, wherein the reflecting means has a plurality of flat reflecting surfaces having the same reflection angle.