JP7824738B2 - exhibition equipment - Google Patents

Description

This disclosure relates to an exhibition device for displaying exhibits.

Patent Document 1 discloses a display case in which a thin, non-translucent (sheet-like) ceiling frame member (frame portion) is arranged on the upper surface of the ceiling panel around the periphery of the light-emitting panel unit, preventing the view above from below the ceiling panel.

JP 2013-094446 A

Display cases are used for viewing the exhibits. For this reason, it is desirable to minimize the presence of the display cases themselves.

The purpose of this disclosure is to provide an exhibition device that reduces the presence of the display device and is therefore suitable for viewing exhibits.

To solve the above problem, the exhibition device comprises a main body having a ceiling panel that covers the upper side of the exhibition space, and a lighting device that irradiates illumination light into the exhibition space, the ceiling panel having a first area and a second area, the lighting device being attached to the first area, and the ceiling panel having specular reflectivity with respect to the exhibition space in the second area.

With this exhibition device, the surrounding area of the exhibition space is reflected in the second area of the ceiling panel. This makes the ceiling panel less likely to be seen as a light blocker, reducing the presence of the exhibition device. This makes it possible to provide an exhibition device that is suitable for viewing exhibits.

1 is a front view showing an exhibition device according to an embodiment. FIG. FIG. 2 is a cross-sectional view taken along line III-III in FIG. FIG. 3 is an enlarged view of FIG. 2. 3 is a partial cross-sectional view taken along line VV in FIG. 2. FIG. 1 is an explanatory diagram showing an example of installation of an exhibition device in an exhibition room.

{Embodiment}
<Overall explanation>
An exhibition device according to an embodiment will now be described. Fig. 1 is a front view of the exhibition device 10. Fig. 2 is a plan view of the exhibition device 10. Fig. 3 is a cross-sectional view taken along line III-III in Fig. 1. Fig. 4 is an enlarged view of Fig. 2. Fig. 5 is a partial cross-sectional view taken along line V-V in Fig. 2.

The exhibition device 10 is a device used to display exhibits, for example, in an art gallery or museum. The exhibition device 10 comprises a main body 20 and a lighting device 60. The exhibits are displayed within the main body 20, and the lighting device 60 illuminates the exhibits.

<About the device>
The main body 20 has a ceiling panel 50 that covers the upper side of the exhibition space 20S. In this embodiment, the main body 20 is formed in the shape of a case that defines the exhibition space 20S inside. More specifically, the main body 20 has a lower base 22, four transparent side panels 24, and the ceiling panel 50.

In this embodiment, the lower base 22 is formed in the shape of a rectangular plate. The lower base 22 may be placed directly on the installation surface. The lower surface of the lower base 22 may have multiple legs that protrude partially, and the lower base 22 may be placed on the installation surface via these legs. The lower base 22 may be provided with casters, and the lower base 22 may be placed on the installation surface via the casters. When the exhibition device 10 is installed indoors, the installation surface is the floor of the exhibition room. When the exhibition device 10 is installed outdoors, the installation surface may be the ground.

The four transparent side panels 24 are formed from transparent rectangular plates. The transparent side panels 24 are formed, for example, from glass-based plates. The glass may be silicate glass, which is primarily composed of silicate, or resin glass such as acrylic glass. Using silicate glass rather than resin glass allows for higher transparency and superior surface smoothness, making the transparent side panels 24 less noticeable. The transparent side panels 24 may be single-pane glass or double-pane glass.

The four transparent side panels 24 are supported so that they rise from the four periphery sides of the lower base 22. This forms an exhibition space 20S surrounded by the four transparent side panels 24 above the lower base 22.

The side edges of the four transparent side panels 24 may be cut at an angle. A gap may be provided between the angled side edges of adjacent transparent side panels 24, and this gap may be filled with a glass sealant such as silicone. The angled side edges of adjacent transparent side panels 24 may be in contact with each other.

The upper edges of the four transparent side panels 24 are held in a rectangular position by the frame member 30. The frame member 30 forms a rectangular frame when viewed as a whole. In this embodiment, the frame member 30 also serves to support the ceiling panel 50.

The frame member 30 comprises four frames 32 corresponding to the four transparent side panels 24. The frame member 30 is constructed by connecting the four frames 32 to form a square frame.

The frame 32 is made of a metal such as aluminum. The frame 32 may also be made of resin. The frame 32 is formed in an elongated shape extending along the upper edge of the transparent side panel 24. The frame 32 has a frame main body 33, a side panel pressing piece 34, and a pair of ceiling panel support pieces 35 (see Figure 5). The frame main body 33 is in the shape of a rectangular pillar. The vertical dimension of the frame main body 33 is greater than the thickness of the ceiling panel 50.

The side panel pressing piece 34 is formed in the shape of a long rectangular plate extending along the longitudinal direction of the frame main body 33. The side panel pressing piece 34 extends outward in the horizontal direction from the upper edge of the surface of the frame main body 33 facing outward from the main body 20. The projection dimension of the side panel pressing piece 34 from the frame main body 33 is greater than the thickness dimension of the transparent side panel 24. In addition, the side panel pressing piece 34 has a protrusion 34p at a position separated from the frame main body 33 by the thickness dimension of the transparent side panel 24. The protrusion 34p is a portion that protrudes downward from the tip edge of the side panel pressing piece 34.

The outward surface of the frame main body 33, the downward surface of the side panel pressing piece 34, and the inward surface of the protrusion 34p form a side panel holding groove 36. The upper edge of the transparent side panel 24 is sandwiched between the outward surface of the frame main body 33 and the inward surface of the protrusion 34p, and the upward surface of the transparent side panel 24 is positioned opposite the downward surface of the side panel pressing piece 34, so that the upper edge of the transparent side panel 24 is fitted into the side panel holding groove 36. This maintains the upper edge of the transparent side panel 24 in a fixed position in the thickness direction relative to the frame 32. In this fitted state, a glass sealant such as silicone may be filled between the upper edge of the transparent side panel 24 and the side panel holding groove 36.

The pair of ceiling panel support pieces 35 are formed as long rectangular plates extending along the longitudinal direction of the frame main body 33. The pair of ceiling panel support pieces 35 extend outward horizontally from the upper and lower edges of the surface of the frame main body 33 facing inward of the main body 20.

A ceiling panel holding groove 37 is formed by the inward-facing surface of the frame main body 33 facing the main body 20 and the opposing surfaces of the pair of ceiling panel support pieces 35. The upper edge of the transparent side panel 24 is sandwiched between the outward-facing surface of the frame main body 33 and the inward-facing surface of the protrusion 34p, and the upward-facing surface of the transparent side panel 24 is positioned opposite the downward-facing surface of the side panel pressing piece 34, so that the upper edge of the transparent side panel 24 is fitted into the ceiling panel holding groove 37. This maintains the edge of one side of the ceiling panel 50 in a fixed position relative to the frame 32 in the vertical direction. In this fitted state, a glass sealant such as silicone may be filled between the edge of the ceiling panel 50 and the ceiling panel holding groove 37.

The frame 32 as described above may be formed by extruding aluminum.

The four frames 32 may be connected in a rectangular frame shape in any configuration. For example, the four frames 32 may be connected in a rectangular frame shape by screws, or by welding or adhesive.

In this embodiment, four frames 32 are connected in a rectangular frame shape using an L-shaped connecting member 38 and a screw fastening configuration. That is, the connecting member 38 is formed in an L-shaped plate shape made of metal or the like. Each end face of the frame 32 is cut at a 45° angle with respect to the longitudinal direction of the frame 32, and the four frames 32 can be arranged in a rectangular frame shape with their end faces butted together. One linear plate portion of the connecting member 38 is placed on top of one end of an adjacent frame 32, and the other linear plate portion of the connecting member 38 is placed on top of the other end of the adjacent frame 32 (see Figure 4). In this state, each linear portion is fixed to the end of the frame 32 with a screw S. This maintains the adjacent frames 32 connected in an L-shape. Adjacent ends of the four frames 32 are similarly connected by the connecting member 38, so that the four frames 32 are connected to form a rectangular frame shape.

By connecting the four frames 32 in a rectangular frame shape, the upper edges of the four transparent side panels 24 are also maintained in a rectangular positional relationship.

The lower edges of the four transparent side panels 24 on the lower base 22 may also be supported using the same configuration as the frame member 30 described above.

In this embodiment, the main body 20 is equipped with a platform 40 on which an exhibit can be placed. The platform 40 has a mounting plate 42 that is higher than the lower base 22. In this embodiment, the platform 40 is formed in the shape of a rectangular parallelepiped, having four side plates 43 and the mounting plate 42. The four side plates 43 are assembled with screws, adhesive, etc. so as to form a square in a plan view. The mounting plate 42 is fixed to the upper parts of the four side plates 43 with screws, adhesive, etc., and is supported in a horizontal position spaced above and spaced apart from the lower parts of the side plates 43. By placing or fixing this platform 40 on the upper surface of the lower base 22, the mounting plate 42 is positioned at a height above the installation surface that is suitable for display.

Four transparent side panels 24 are located above the mounting plate 42 of the stand 40, separating the exhibition space 20S above the stand 40 from the outside on all four sides by the four transparent side panels 24.

The configuration for supporting the mounting plate 42 is not limited to the above example. The mounting plate may be supported at a position above the lower base 22 by one or more legs. The mounting plate may be supported at a height away from the installation surface by the transparent side panel 24. The mounting plate may also be suspended from the ceiling panel 50 and supported at a height away from the installation surface.

The transparent side panel 24 may also be erected upward from the top of the platform 40, rather than from the lower base 22.

<About the lighting equipment>
The lighting device 60 is a device that irradiates illumination light into the exhibition space 20S. The lighting device 60 is preferably a flat lighting device. For example, the lighting device 60 may be a lighting device that is thinner than the thickness of the ceiling panel 50, for example, a lighting device with a thickness of 2 mm or less. Furthermore, the lighting device 60 is preferably a surface-emitting light source.

The flat, surface-emitting lighting device 60 may be, for example, an organic electroluminescence (EL) lighting device. An organic electroluminescence (EL) lighting device is a lighting device in which a light-emitting layer made of an organic compound is sandwiched between an electrode and a transparent electrode. By applying a voltage to the light-emitting layer via the electrode and transparent electrode, the light-emitting layer emits light across the entire surface. This results in light with little unevenness and a wide distribution across the entire light-emitting surface. By irradiating this light onto an exhibit, the entire exhibit can be softly illuminated while suppressing dark shadows. Furthermore, the light emitted by an EL lighting device has a wide range of visible light frequency components, similar to natural light. This improves the color reproducibility of exhibits illuminated by the light emitted by the EL lighting device. Furthermore, the light emitted by an EL lighting device contains little or no ultraviolet or infrared light, thereby minimizing deterioration of the exhibits.

It should be noted that the flat, surface-emitting lighting device 60 does not necessarily have to be an organic EL lighting device. The flat, surface-emitting lighting device 60 may, for example, be a lighting device 60 in which the light emitted by a light-emitting diode is diffused by a diffusion plate.

It is not essential that the lighting device 60 be a flat lighting device that emits light from a surface. The lighting device 60 may also be a lighting device that includes a light-emitting diode, a fluorescent lamp, or an incandescent lamp.

In this embodiment, the lighting device 60 is described as being a rectangular organic EL lighting device. Furthermore, in this embodiment, an example is described in which the exhibition device 10 is equipped with multiple (here, four) lighting devices 60. However, the number of lighting devices 60 may be one.

<Regarding ceiling panels and how lighting devices are attached to ceiling panels>
As described above, the ceiling panel 50 covers the upper side of the exhibition space 20S. In this embodiment, the ceiling panel 50 is formed in the shape of a rectangular plate. The edges of each of the four sides of the ceiling panel 50 are fitted into and held in the ceiling panel holding grooves 37 of the frame 32, thereby supporting the ceiling panel 50 at a predetermined height. The height position of the ceiling panel 50 is arbitrary. For example, the ceiling panel 50 may be located at a height of 2 m or more above the installation surface of the lighting device 60.

The ceiling panel 50 has a first area E1 and a second area E2. The first area E1 and the second area E2 are exclusive areas. The lighting device 60 is attached to the first area E1. Here, the lighting device 60 is attached so that it extends over the entire first area E1. The ceiling panel 50 has specular reflectivity toward the exhibition space 20S in the second area E2. Therefore, when observing the ceiling panel 50 from the exhibition space 20S, either the area where the light-emitting surface of the lighting device 60 extends or the area with specular reflectivity is observed.

More specifically, the ceiling panel 50 has a plurality of first regions E1. In this embodiment, four first regions E1 are provided in a central region away from the four sides of the ceiling panel 50. The four first regions E1 are rectangular regions of the same size. The four first regions E1 are arranged in two columns and two rows in the direction of two orthogonal sides of the ceiling panel 50. A gap is provided between adjacent first regions E1 in each direction of the two orthogonal sides of the ceiling panel 50.

The second regions E2 are located in the regions surrounding the four first regions E1 of the ceiling panel 50 and in the regions between the four first regions E1. Therefore, the second regions E2 are spaced apart by a distance from the multiple first regions E1.

A lighting device 60 is attached to each of the four first regions E1. The lighting device 60 is formed in a flat rectangular shape that is the same size and shape as the first region E1. The light-emitting surface of the lighting device 60 also has the same size and shape as the first region E1.

The above-described ceiling panel 50 can be realized, for example, by a configuration including a transparent panel 51 and a specular reflective layer 52.

The transparent panel 51 is formed from a transparent rectangular plate material. The transparent panel 51 is formed, for example, from a glass-based plate material. The glass may be silicate glass, which is primarily composed of silicate, or resin glass such as acrylic glass. Using silicate glass rather than resin glass can increase transparency, provide excellent surface smoothness, and make the transparent panel 51 appear less noticeable. The transparent panel 51 may be single-layer glass or double-layer glass. The transparent panel 51 may have a thickness of, for example, 10 mm or less.

The specular reflective layer 52 is located on the main surface of the transparent panel 51. Here, being located on the main surface of the transparent panel 51 means being located so as to be in contact with the top or bottom surface of the transparent panel 51. In this embodiment, the specular reflective layer 52 is located in the second region E2 of one of the main surfaces of the transparent panel 51. The specular reflective layer 52 has specular reflectivity at least toward the exhibition space 20S. Therefore, when the second region E2 of the transparent panel 51 is viewed from the exhibition space 20S side, a mirror surface is observed. When the first region E1 of the transparent panel 51 is viewed from the exhibition space 20S without the lighting device 60, the upper part is visible (see Figure 3).

The specular reflective layer 52 may be formed, for example, by attaching a mirror film to the upper main surface of the transparent panel 51, which is on the side opposite the exhibition space 20S. The mirror film is, for example, a resin film on which a metal reflective film is formed by vapor deposition or sputtering. The reflective surface of such a mirror film is adhered or bonded to the upper main surface of the transparent panel 51, thereby forming the specular reflective layer 52 on the upper main surface of the transparent panel 51.

It is not essential that the specular reflective layer 52 be formed from a mirror film. Silver plating or the like may be applied directly to the upper main surface of the transparent panel 51, a mirror coating may be applied to the upper main surface of the transparent panel 51, or a metal plate with a mirror finish may be superimposed on the upper side of the transparent panel 51.

It is not necessary for the specular reflective layer 52 to be located on the upper surface of the transparent panel 51; the specular reflective layer 52 may be located on the lower surface of the transparent panel 51 so that it has specular reflectivity when viewed from the exhibition space 20S side.

A lighting device 60 is attached to the ceiling panel 50 with its light-emitting surface facing the exhibition space 20S. The lighting device 60 may be attached to the ceiling panel 50 in any manner.

L-shaped positioning and fixing portions 56 are fixed to the four corners of the first region E1 on the top surface of the ceiling panel 50 by welding, screwing, adhesive, etc. Then, with the four corners of the lighting device 60 positioned by the positioning and fixing portions 56, the lighting device 60 is placed on the first region E1 of the ceiling panel 50. In this way, the lighting device 60 is attached to the first region E1 of the ceiling panel 50.

The mounting structure of the lighting device 60 on the ceiling panel 50 is not limited to the above example, and any configuration is acceptable as long as it can maintain the lighting device 60 in a fixed position relative to the ceiling panel 50. For example, the lighting device 60 may be fixed to the ceiling panel 50 with screws.

The lighting device 60 is attached to a first region E1 of the upper surface of the ceiling panel 50, and a specular reflective layer 52 is provided on a second region E2 of the upper surface, so that the light emitted from the lighting device 60 is irradiated into the exhibition space 20S without being reflected by the specular reflective layer 52.

<About spot lighting>
The exhibition apparatus 10 is equipped with a spotlighting device 70. The spotlighting device 70 is a device that irradiates a downward spotlight into the exhibition space 20S. The spotlight is light that is irradiated over a narrower range than the illumination range of the illumination device 60. The spotlighting device 70 can brightly illuminate a limited range within the exhibition space 20S.

The spotlight device 70 may be any lighting device that irradiates light over a more limited range than the lighting device 60. The light source of the spotlight device 70 may be, for example, an organic electroluminescent (EL) light-emitting element, a light-emitting diode, a fluorescent lamp, an incandescent lamp, or the like. In order to narrow the emitted light to a certain range, the light distribution characteristics of the light source may be relied upon, or at least one of a reflector and a lens may be used.

The spot lighting devices 70 are supported in a suspended state by the frame member 30. In this embodiment, four spot lighting devices 70 are supported in a suspended state at each corner of the frame member 30. The spot lighting devices 70 are fixed to the frame member 30 by screws, adhesive, etc. The spot lighting devices 70 may be fixed to the ceiling panel 50 or the transparent side panel 24.

The light emitted from the four spotlight devices 70 is directed, for example, above the stand 40 within the exhibition space 20S, toward the central area of the stand 40 in a plan view.

The position and number of spot lighting devices 70 are optional. For example, there may be one or more spot lighting devices 70, or five or more spot lighting devices 70. Furthermore, for example, the spot lighting devices 70 may be fixed to the middle of the frame 32 in the longitudinal direction. The spot lighting devices 70 may also be omitted.

This exhibition device does not necessarily need to include a lighting device that projects light upward, such as a lighting device that projects light toward the ceiling panel 50.

<About wiring examples>
A description will be given of an example layout of the wiring 64a and 64b of the lighting device 60. The wiring 64a and 64b extend from the lighting device 60. The wiring 64a and 64b are, for example, electric wires for supplying power. The wiring 64a and 64b may also include signal lines.

The lighting devices 60 are arranged in the first area E1, and the wiring 64a and 64b are arranged on the upper surface of the ceiling panel 50, passing through the second area. In this embodiment, the wiring 64a extends from one lighting device 60 toward an external power source. The wiring 64a extends above the ceiling panel 50, crossing the second area E2. The wiring 64b extends to sequentially connect the four lighting devices 60. The wiring 64b also extends above the ceiling panel 50, crossing the second area E2. The wiring 64a and 64b supply power to each of the multiple lighting devices 60, enabling them to emit light.

On the upper side of the ceiling panel 50, the wiring 64a, 64b is located above the specular reflective layer 52. Therefore, even when the ceiling panel 50 is viewed from the exhibition space 20S, the wiring 64a, 64b is hidden by the specular reflective layer 52 in the second area E2.

Since the spot lighting device 70 is located within the exhibition space 20S, the spot lighting wiring 74 of the spot lighting device 70 is pulled out from the exhibition space 20S to the outside. The spot lighting wiring 74 may be pulled out to the outside from any of the ceiling panel 50, frame member 30, or transparent side panel 24.

In this embodiment, an extraction hole 30h is formed in the connecting portion of the frame 32 in the frame member 30 (see Figure 4). The extraction hole 30h may be formed in the boundary portion between adjacent transparent side panels 24. For example, glass sealant 28 is filled between the side surfaces of adjacent transparent side panels 24. The extraction hole 30h is set above the glass sealant 28 in an area overlapping the glass sealant. Spot lighting wiring 74 extending from spot lighting devices 70 supported at the corners of the frame 32 is led through the glass sealant 28 between the side surfaces of adjacent transparent side panels 24 to the extraction hole 30h, and then extracted to the outside of the exhibition apparatus 10 through the extraction hole 30h. The spot lighting wiring 74 extracted from each spot lighting device 70 to the outside is extracted along the frame member 30 or over the ceiling panel 50 toward a power source.

<Installation example of the exhibition device 10>
6 is an explanatory diagram showing an example of installation of the exhibition device 10 in an exhibition room. The exhibition device 10 is placed on a floor 100, which is an installation surface. The height H of the exhibition device 10 is set to, for example, 2 m or more from the floor 100. A ceiling lighting device 120 for the exhibition room is provided on the ceiling 110.

The exhibit 130 is displayed above the stand 40 of the exhibition device 10. The illumination light from the lighting device 60 is emitted downward from the ceiling panel 50, illuminating the exhibit 130. The spotlight from the spot lighting device 70 is also emitted toward the exhibit 130.

An observer P of average height is viewing the exhibit 130. The observer P's line of sight is directed toward the exhibit 130. There is a possibility that the ceiling panel 50 may be included in the observer P's peripheral vision.

However, because the lighting device 60 is a surface light source, it is less likely to be dazzling. Furthermore, the scenery below the ceiling panel 50 is reflected in the second area E2, which is not a light source. Therefore, the ceiling panel 50 is perceived as blending visually into the surrounding scenery, making it less noticeable. Furthermore, parts of the exhibit 130 that are not visible to the viewer P can be observed through the mirrored surface of the second area E2 of the ceiling panel 50.

In addition, the underside of the ceiling panel 50 is formed by the transparent panel 51. Therefore, the underside surface of the ceiling panel 50 visible to the observer P can be observed as a smooth and clean surface.

Furthermore, since the specular reflective layer 52 is observed through the transparent panel 51, it can be seen as a ceiling with a sense of depth.

Furthermore, even if the ceiling lighting device 120 on the ceiling 110 enters the peripheral vision, it can be hidden by the ceiling panel 50. As a result, the light L from the ceiling lighting device 120 is blocked by the ceiling panel 50 and is difficult for the observer P to observe directly. This reduces the glare caused by the ceiling lighting device 120 being present in the peripheral vision when observing the exhibit 130 in the exhibition device 10. Furthermore, because the light L from the ceiling lighting device 120 is blocked by the ceiling panel 50, the exhibit 130 is illuminated primarily by the illumination light from the lighting device 60, and, if present, by spot illumination light from the spot lighting device 70. This allows the exhibition device 10 to effectively demonstrate its lighting effects.

<Effects, etc.>
According to the exhibition device 10 configured as described above, the lighting device 60 is disposed in the first region E1 of the ceiling panel 50, and illumination light from this lighting device 60 is emitted. The surrounding area of the exhibition space 20S is reflected in the second region E2 of the ceiling panel 50. Therefore, the ceiling panel 50 is less likely to be seen by the viewer P as a light blocker, and the presence of the exhibition device 10 can be reduced. This makes it easier for the viewer P to concentrate on observing the exhibit 130, and an exhibit 130 suitable for viewing the exhibit 130 can be provided.

Furthermore, because the wiring 64a, 64b extending from the lighting device 60 passes through the second region E2, the wiring 64a, 64b can be made less noticeable. This also makes it easier for the viewer P to concentrate on observing the exhibit 130.

The ceiling panel 50 also has a plurality of first areas E1 that are spaced apart from one another, and a lighting device 60 is attached to each of the first areas E1. As a result, each of the plurality of lighting devices 60, which are spaced apart from one another, can illuminate the exhibit 130 from a different direction. This reduces the shadow cast on the exhibit 130, making it easier to observe the exhibit 130.

The ceiling panel 50 also includes a transparent panel 51 made of a glass-based plate material and a specular reflective layer 52 located on the main surface of the transparent panel 51. By using a transparent panel 51 made of a glass-based plate material for the ceiling panel 50, the thickness of the ceiling panel 50 can be made less noticeable.

The specular reflective layer 52 is also provided on the surface opposite the exhibition space 20S. Therefore, when viewed from the viewer P looking inside the exhibition space 20S, the specular reflective layer 52 is observed through the transparent panel 51, which is a glass-based plate material. It is easy to increase the smoothness of the surface of the transparent panel 51, which is a glass-based plate material. Furthermore, the viewer P observes the background reflected in the specular reflective layer 52 on the far side of the transparent panel 51, allowing the viewer P to observe a background with a sense of depth. This makes the ceiling panel 50 look beautiful.

Furthermore, if the lighting device 60 is an organic EL lighting device, the thickness can be reduced, making the lighting device 60 attached to the ceiling panel 50 less noticeable.

The main body 20 also has a base 40 on which the exhibit 130 can be placed, and four transparent panels 51 that separate the four sides of the exhibition space 20S on the base 40. As a result, the exhibit 130 in the exhibition space 20S can be observed from all four sides through the four transparent side panels 24.

In addition, while the exhibition space 20S is a space divided by the transparent panels 51 and ceiling panels 50, the presence of each partition can be minimized. This allows the viewer P to concentrate on the exhibit 130.

Furthermore, if the ceiling panel 50 is positioned at a height of 2 m or more from the installation surface, the ceiling lighting device 120 in the exhibition room can be easily hidden by the ceiling panel 50 when an observer P of average height views the exhibit 130 in the exhibition space 20S.

Furthermore, by including the spot lighting device 70 in the exhibition device 10, it is possible to brightly illuminate specific areas of the exhibit 130. By drawing the spot lighting wiring 74 extending from the spot lighting device 70 above the top surface of the ceiling panel 50, the spot lighting wiring 74 can be hidden by the ceiling panel 50. For example, even if the spot lighting wiring 74 extends along the frame member 30, the spot lighting wiring 74 will be hidden by the ceiling panel 50 when viewed from diagonally below the ceiling panel 50. Therefore, the spot lighting wiring 74 can also be made less noticeable by the ceiling panel 50.

{Modification}
It is not essential that there are four transparent side panels 24, as in this embodiment. Some of the four transparent side panels 24 may be omitted. Some or all of the four transparent side panels 24 may be configured to be openable and closable. For example, any one of the transparent side panels 24 may be supported openably and closably by the lower base 22 and the frame member 30 via a shaft portion. Also, all of the four transparent side panels 24 may be omitted. In this case, a separate frame may be provided to support the ceiling panel.

It is not necessary for all four transparent side panels 24 to be transparent. For example, some of the four transparent side panels 24 may be opaque.

It is not essential that the main body 20 be in the shape of a rectangular parallelepiped case, as in this embodiment. For example, the main body may be in the shape of a cylindrical case, a triangular prism case, or a polygonal case with pentagons or more sides.

In this embodiment, an example has been described in which the display device 10 is placed on an installation surface. The display device 10 may also be suspended from the ceiling or cantilevered from a wall.

The configurations described in the above embodiments and variations can be combined as appropriate as long as they are not mutually inconsistent.

This specification and drawings disclose the following aspects:

The first aspect is an exhibition device comprising a main body having a ceiling panel covering the upper side of an exhibition space, and a lighting device that irradiates illumination light into the exhibition space, wherein the ceiling panel has a first area and a second area, the lighting device is attached to the first area, and the ceiling panel has specular reflectivity toward the exhibition space in the second area.

With this exhibition device, the surrounding area of the exhibition space is reflected in the second area of the ceiling panel. This makes the ceiling panel less likely to be seen as a light blocker, reducing the presence of the exhibition device. This makes it possible to provide an exhibition device that is suitable for viewing exhibits.

The second aspect is the display device according to the first aspect, in which the wiring extending from the lighting device passes through the second area. This makes the wiring less noticeable.

A third aspect is an exhibition device according to the first or second aspect, in which the ceiling panel has a plurality of the first areas, the second area is spaced apart from the plurality of first areas, and the lighting device is attached to each of the plurality of first areas. This allows the exhibit to be illuminated from different directions by the plurality of lighting devices attached to each of the plurality of first areas that are spaced apart from each other.

A fourth aspect is a display device according to any one of the first to third aspects, in which the ceiling panel comprises a glass-based plate material and a specular reflective layer located on the main surface of the glass-based plate material. In this way, by using a glass-based plate material, the thickness of the ceiling panel can be made less noticeable.

The fifth aspect is the exhibition device according to the fourth aspect, in which the specular reflective layer is provided on the surface opposite the exhibition space. In this case, the surface of the glass-based plate material is exposed on the exhibition space side. This allows the ceiling panel to look beautiful when viewed by an observer inside the exhibition space.

A sixth aspect is an exhibition device according to any one of the first to fifth aspects, in which the lighting device is an organic EL lighting device. In this case, since the organic EL lighting device has a small thickness, the organic EL lighting device attached to the ceiling panel can be made inconspicuous.

The seventh aspect is an exhibition device according to any one of the first to sixth aspects, wherein the main body has a base on which an exhibit can be placed and four transparent side panels that separate the four sides of the exhibition space on the base. In this case, the exhibition space can be observed from all four sides through the four transparent side panels. When observed from any of the four sides, the ceiling panel is not very noticeable.

The eighth aspect is an exhibition device according to any one of the first to seventh aspects, wherein the ceiling panel is positioned at a height of 2 m or more above the installation surface. In this way, if the ceiling panel is positioned at a height of 2 m or more above the installation surface, it is easy to conceal the ceiling lighting in the exhibition room.

A ninth aspect is an exhibition device according to any one of the first to eighth aspects, further comprising a spot lighting device that emits downward spotlight into the exhibition space, and the spot lighting wiring extending from the spot lighting device is pulled out above the upper surface of the ceiling panel. This makes it possible to make the spot lighting wiring less noticeable due to the ceiling panel.

The above description is illustrative in all respects and does not limit the scope of the present invention. It is understood that countless variations not illustrated can be envisioned without departing from the scope of the present invention.

10 Exhibition device 20 Main body 20S Exhibition space 24 Transparent side panel 30 Frame member 30h Drawer hole 50 Ceiling panel 51 Transparent panel (glass-based plate material)
52 Specular reflective layer 60 Lighting device (organic EL lighting device)
64a, 64b Wiring 70 Spot lighting device 74 Spot lighting wiring E1 First region E2 Second region

Claims (7)

a main body having a ceiling panel covering the upper side of the exhibition space;
a lighting device that irradiates illumination light into the exhibition space;
Equipped with
the ceiling panel having a first region and a second region;
the lighting device is attached to the first region;
the ceiling panel has specular reflectivity with respect to the exhibition space in the second area;
The ceiling panel has a glass-based plate and a specular reflective layer located on a main surface of the glass-based plate,
The specular reflective layer is provided on the surface opposite the exhibition space . The display device according to claim 1,
An exhibition device, wherein wiring extending from the lighting device passes through the second area. The exhibition device according to claim 1 or 2,
the ceiling panel includes a plurality of the first regions,
the second regions are spaced apart from the plurality of first regions;
An exhibition device, wherein the lighting device is attached to each of the plurality of first areas. The exhibition device according to any one of claims 1 to 3 ,
The display device, wherein the lighting device is an organic electroluminescence (EL) lighting device. The exhibition device according to any one of claims 1 to 4 ,
The main body of the exhibition device has a base on which an exhibit can be placed, and four transparent side panels that separate the four sides of the exhibition space on the base. The exhibition device according to any one of claims 1 to 5 ,
The ceiling panel is positioned at a height of 2 m or more from the installation surface. The exhibition device according to any one of claims 1 to 6 ,
Further provided is a spotlight device for irradiating the exhibition space with a spotlight directed downward,
In the display device, wiring for spot lighting extending from the spot lighting device is drawn out above the upper surface of the ceiling panel.