JP2006257699A - Light emitting tile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting tile which almost uniformly emits light from the entire front surface thereof in spite of employment of a light emitting body smaller than the front surface of the tile, and exerts antiskid effect. <P>SOLUTION: The light emitting tile is formed of a translucent tile main body having a recess formed in a rear surface thereof, and the planar light emitting body to be installed in the recess. The planar light emitting body has a light emitting surface thereof formed smaller than the front surface of the tile main body, and a ceiling surface in the recess of the tile main body is formed into a rough surface so as to irregularly reflect light. Further the front surface of the tile main body has a plurality of projections formed thereon, so as to exert a prism function of reflecting light, and the projections are arranged in a manner enclosing the light emitting surface of the planar light emitting body installed in the recess. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a light-emitting tile mainly including a light emitter.

  In general, tiles may be laid in the approach to the entrance or the approach to the building, but it is necessary to provide lighting to illuminate or guide the foot of this approach because the foot becomes dark at night etc. .

  Therefore, conventionally, a light emitting tile whose surface is shining has been proposed. As this light emitting tile, for example, a light emitting tile having a structure in which a small fluorescent lamp is installed on the back side of a transparent plate-shaped tile body, or a transparent plate-shaped In this tile body, a surface light emitter and a solar cell are incorporated (see Patent Document 1).

  In the above light-emitting tiles, for example, at night, fluorescent lamps and planar light emitters are lit, and the surface of the tile shines in the dark, which not only enhances the night view but also brightens the feet. is there.

  By the way, in the above light emitting tile, when it is intended to shine the surface of the tile substantially uniformly over the entire surface, for example, a planar light emitting body having the same size as the surface of the tile may be provided. As the shape of the light emitter increases, the manufacturing cost increases dramatically, and the amount of electricity used increases and the running cost increases accordingly.

On the other hand, tiles are relatively slippery, and therefore it is necessary to apply anti-slip processing to the surface of the tiles.
JP 2000-290945 A

  The present invention has been developed in view of the above circumstances, and the object is to use a light emitter smaller than the surface of the tile, but the entire surface of the tile can shine almost evenly, and anti-slip can be expected. It is to provide a light emitting tile.

  In order to achieve the above-described object, the invention according to claim 1 is provided with a translucent tile main body having a recess formed on the back surface, and a planar light emitter incorporated in the recess, and the planar light emission. While the light emitting surface of the body is formed smaller than the surface of the tile body, the ceiling surface in the recess in the tile body is formed as a rough surface that diffuses light, and the surface of the tile body has a prism function that reflects light. A plurality of convex portions are provided so as to protrude.

  The invention described in claim 2 is characterized in that the convex portion described in claim 1 is arranged so as to surround the light emitting surface of the planar light emitter incorporated in the recess.

  The invention described in claim 3 is characterized in that the convex portion described in claim 1 or 2 is formed in a substantially triangular cross section.

  According to the first aspect of the present invention, a part of the light emitted from the light emitting surface of the planar light emitter smaller than the surface of the tile main body passes directly through the tile main body, and a part of the light is a rough surface of the recess. After being bent at the ceiling surface and entering the tile body, reflection is repeated between the ceiling surface and the convex portion, and then it is pulled out above the surface of the tile body. As a result, on the surface of the tile body The light also circulates to the peripheral edge where the planar light emitters are not facing, and the entire surface of the tile body shines almost uniformly in a planar shape. Therefore, as a whole, the manufacturing cost and the running cost should be reduced. Despite this, the entire surface of the tile can be illuminated almost evenly, and anti-slip of the tile can also be expected.

  In addition, since the planar light emitter is incorporated in the recess of the tile body, the thickness of the tile can be reduced, and the planar light emitter can be protected by the tile body.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the diffusion of light to the peripheral edge of the surface of the tile main body where the planar light emitter is not opposed is performed more efficiently. I can do it.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the function of preventing slipping by the convex portion can be further exhibited.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a state in which the light emitting tile 1 of the embodiment is viewed obliquely from above, and FIG. 2 is a plan view of the light emitting tile 1 of the embodiment viewed from directly above. 3 is a cross-sectional view of the light emitting tile 1 of the embodiment, and FIG. 4 is an enlarged cross-sectional view of the main part.

The light-emitting tile 1 shown in FIGS.
A tile body 2 having translucency formed in a square in plan view;
It is comprised from the planar light-emitting body 3 made into the square view planarly integrated in this tile main body 2. As shown in FIG.

  The tile main body 2 of the embodiment shown in the figure is a square having a side of 140 mm and a height of 20 mm.

  The tile body 2 is made of transparent glass, and a recess 21 having a square shape in plan view that is slightly smaller than the outer shape of the tile body 2 is formed on the back surface of the tile body 2.

  The recess 21 is a square having a side of 120 mm and a depth of 10 mm.

  The ceiling surface 22 of the recess 21 is textured to provide a rough surface on which light can be irregularly reflected, and one of the light from the planar light-emitting body 3 disposed in the recess 21. The part is irregularly reflected on the ceiling surface 22.

  The planar light emitter 3 is a square having a side of 90 mm and a height of 5 mm.

  The planar light emitter 3 includes a plate-shaped light guide plate 31 having a square shape in plan view, and a plurality of LEDs incorporated at one end of the light guide plate 31. The surface of the light guide plate 31 emits light with a square shape. And the entire surface of the light guide plate 31 shines substantially evenly.

  In the figure, reference numeral 32 denotes a connection line for connection to a power source, and a connector 33 is attached to the tip of the connection line 32.

  And the above planar light-emitting body 3 is set in the center of the recess 21 in the tile main body 2, and the light emitting surface is in contact with the ceiling surface 22 of the recess 21. By filling the resin 23 and filling the recess 21 with the silicon resin 23, the planar light-emitting body 3 is embedded in the tile body 2 as shown in FIG. 3.

  Further, around the surface of the tile body 2 described above, as shown in FIG. 2, there are five convex portions 4 extending in a line in parallel to each of the four sides of the tile body 2. The planar light-emitting body 3 is surrounded by the convex portions 4 extending in a line shape.

  As shown in FIG. 4, the cross sections of these convex portions 4 are formed in a substantially isosceles triangle, and the apex portion P is slightly rounded.

  The height of the convex portion 4 is about 2 mm, and this convex portion 4 also functions as a so-called prism that changes the direction of the light beam to a predetermined direction depending on the incident direction of light with respect to the convex portion 4.

  In the light emitting tile 1 having the above configuration, for example, it is laid on the floor surface such as an approach that leads to a building, and the connection line 32 is appropriately connected to a power source. The plurality of convex portions 4 protruding from the surface can act as a slip stopper, and can prevent the foot from slipping carelessly.

  On the other hand, when the planar light emitter 3 is energized through the connection line 32 at night or the like, the planar light emitter 3 is turned on. Accordingly, light emitted from the light emitting surface of the planar light emitter 3 is turned on. Part of the light passes directly through the tile body 2, and part of the light enters the tile body 2, and then between the ceiling surface 22 and the convex part 4, which is a rough surface in the tile body 2. After being repeatedly diffused to the surroundings, it escapes above the surface of the tile body.

  As a result, the light also circulates to the peripheral edge of the surface of the tile main body 2 where the planar light emitter 3 is not opposed, and light leaks from the entire surface of the tile main body 2. The whole shines almost evenly on the surface, and it is not too dazzling or obstructive.

  In the above embodiment, the line-shaped protrusions 4 are provided on the surface of the tile body 2, but the present invention is not limited to this. For example, a large number of protrusions 4 protruding in a quadrangular pyramid shape are formed. Also good.

  In the above embodiment, the tile body 2 having a square shape in plan view is used. However, the present invention is not limited to this. For example, the tile body 2 having a circular shape or a right-angled isosceles triangle shape can be applied.

  The planar light emitter 3 may be an organic ELD or a fluorescent tube.

  Moreover, in the above embodiment, although the cross-sectional shape of the convex part 4 protruding from the surface of the tile body 2 is formed in a substantially isosceles triangle, it is not limited to this. Alternatively, it may be formed in a trapezoidal cross section.

The perspective view which shows one Embodiment of the lighting fixture concerning this invention. The top view of the lighting fixture shown in FIG. AA line sectional view in FIG. The expanded sectional view of the principal part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light emitting tile 2 Tile body 21 Recess 22 Ceiling surface 23 Silicon resin 3 Planar light-emitting body 4 Convex part

Claims (3)

  A translucent tile body having a recess formed on the back surface and a planar light emitter to be incorporated in the recess, while the light emitting surface of the planar light emitter is formed smaller than the surface of the tile body, The ceiling surface in the recess in the tile body is formed into a rough surface that diffuses light, and the surface of the tile body is provided with a plurality of convex portions having a prism function for reflecting light. tile.   The light emitting tile according to claim 1, wherein the convex portion is disposed so as to surround a light emitting surface of the planar light emitter incorporated in the recess.   The light emitting tile according to claim 1, wherein the convex portion is formed in a substantially triangular cross section.

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