Illumination structure for ceiling

Abstract

To provide an illumination structure for a ceiling that is facilitated in construction and allows performance with light that is emitted toward an interior from a ceiling of a building.SOLUTION: An illumination structure for a ceiling includes: a ceiling material 2 installed while having a space K between a ceiling 101 of a building 100 and the ceiling material; a reflection part 3 installed on a side of the ceiling 101 in the space K; a light source 4 for emitting light L in the space K; and a light discharging part 5 for discharging light L toward an interior 102 of the building 100 from the space K. The reflection part 3 includes a mirror sheet that is deployed in the space K.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a ceiling lighting structure.

Background Art

[0002] For example, there is a ceiling lighting structure that produces a natural fluctuation in the light irradiated from the ceiling of a building into the room to create a lighting effect (see Patent Documents 1 to 3 below).

[0003] Specifically, Patent Document 1 below discloses a lighting device that has a light source and a translucent cover that covers the light source from below and is installed on the ceiling, wherein a liquid is contained in the cover and the cover is provided with a vibration device or a stirring device or a circulation device for causing movement in the liquid.

[0004] On the other hand, Patent Document 2 below discloses a lighting fixture that includes an LED light source, a translucent hollow panel provided in front of the light emission direction of the LED light source, a translucent liquid contained in the hollow panel, and liquid circulation means provided separately from the hollow panel and connected to the hollow panel for circulating the liquid.

[0005] On the other hand, Patent Document 3 below discloses a ceiling structure that includes an opening that communicates from an upper space to a lower space, a water tank that is installed on the floor surface of the upper space so as to cover the opening and at least the bottom surface of which has light transmissivity, a floating body that actively floats in the liquid stored in the water tank, and irradiation means for irradiating light onto the water tank from above.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Patent Document 3

[0007] By the way, in the inventions described in Patent Documents 1 to 3 described above, in order to generate natural fluctuations of light, a structure is adopted in which a liquid, which is a heavy object, is installed on the ceiling. In this case, the construction work is troublesome, and the risk of the liquid falling during an earthquake is high. In addition, a driving device or the like for causing movement in the liquid is required, so that the structure becomes complicated. Furthermore, maintenance work and measures against liquid leakage are also required.

[0008] The present invention has been proposed in view of such conventional circumstances, and an object thereof is to provide a ceiling lighting structure that is easy to construct and that can produce an effect by light irradiated from the ceiling of a building into the room. MEANS FOR SOLVING THE PROBLEMS

[0009] To achieve the above object, the present invention provides the following means. [1] A ceiling material installed with a space provided between it and the ceiling of a building, a reflection part provided on the ceiling side in the space, a light source that emits light in the space, and a light emitting part that emits light from the space into the room of the building, wherein the reflection part includes a mirror sheet extended in the space, and the ceiling lighting structure is characterized by this. [2] The ceiling lighting structure according to [1] above, wherein the mirror sheet has a concavo-convex reflecting surface on the side facing the space. [3] The ceiling lighting structure according to [1] above, wherein the light emitting part is composed of an opening provided at a position facing the reflection part of the ceiling material and a light transmitting material covering the opening. [4] The ceiling lighting structure according to [3] above, wherein the light transmitting material is a film material. 〔5〕The ceiling lighting structure according to 〔3〕, wherein a plurality of the light sources are arranged side by side around the opening. 〔6〕The ceiling lighting structure according to 〔1〕, wherein the light source is a moving light. 〔7〕The ceiling lighting structure according to 〔1〕, wherein the ceiling material is installed in a state of being suspended from the ceiling.

Advantages of the Invention

[0010] As described above, according to the present invention, there is provided a ceiling lighting structure that is easy to construct and enables an effect by light irradiated from the ceiling of a building into the room.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Embodiments for Carrying Out the Invention

[0012] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings used in the following description, for ease of viewing each component, the scale of the dimensions may be varied depending on the component, and the dimensional ratios of each component are not necessarily the same as the actual ones.

[0013] As an embodiment of the present invention, for example, a ceiling lighting structure 1 shown in FIGS. 1 and 2 will be described. Note that FIG. 1 is a plan view of the ceiling lighting structure 1. FIG. 2 is a cross-sectional view of the ceiling lighting structure 1 taken along line segment A-A shown in FIG. 1.

[0014] As shown in FIGS. 1 and 2, the ceiling lighting structure 1 of this embodiment includes a ceiling material 2 installed with a cavity space K provided between it and the ceiling 101 of the building 100, a reflection part 3 provided on the ceiling 101 side within the cavity space K, a plurality of light sources 4 that emit light L within the cavity space K, and a light emitting part 5 that emits the light L from the cavity space K toward the interior 102 of the building 100.

[0015] The ceiling material 2 is made of a lightweight and flexible ceiling sheet (membrane ceiling material). The ceiling material 2 is attached in a state of being stretched over the frame surface of the lower frame 201. The lower frame 201 is suspended and supported at the tip (lower end) side of the hanging fitting 200.

[0016] As a result, the ceiling material 2 is installed in a state of being suspended from the ceiling 101 via the hanging fitting 200. Also, while providing the cavity space K between the ceiling material 2 and the ceiling 101 of the building 100, a plurality of the ceiling materials 2 are arranged side by side in a plane parallel to the ceiling 101 of the building 100 so as to partition the space between the ceiling material 2 and the interior 102 of the building 100.

[0017] Note that the ceiling material 2 is not necessarily limited to the above-described ceiling sheet, and it may be a ceiling board.

[0018] The reflection part 3 is composed of a lightweight and flexible mirror sheet (membrane reflector) (hereinafter referred to as "mirror sheet 3"). The mirror sheet 3 has a concavo-convex reflecting surface 3a on the side facing the cavity space K (lower surface side), and is provided in a state of being stretched within the cavity space K.

[0019] Specifically, this mirror sheet 3 is attached in a state of being stretched over the frame surface of the upper frame 202. The upper frame 202 is suspended and supported at the base end (upper end) side of the hanging fitting 200.

[0020] As a result, the mirror sheet 3 is installed in a state of being suspended from the ceiling 101 via the hanging fitting 200. Also, while facing the ceiling material 2, a plurality of the mirror sheets 3 are arranged side by side in a plane parallel to the ceiling 101 of the building 100.

[0021] The uneven reflecting surface 3a is formed by adding irregular and innumerable protrusions, wrinkles, folds, etc. to the mirror sheet 3. Also, the uneven reflecting surface 3a can be formed by the sag or warp of the mirror sheet 3.

[0022] The plurality of light sources 4 are moving lights (hereinafter, "moving light 4"), and it is possible to variably control the emission direction, light quantity (brightness), color tone, etc. of the light L.

[0023] The light emitting part 5 is composed of a rectangular opening 6 provided at a position facing the mirror sheet 3 of the ceiling material 2 and a light transmissive material 7 covering the opening 6.

[0024] The light transmissive material 7 is made of a lightweight and flexible light transmissive sheet (film light transmissive material). The light transmissive material 7 transmits the light L in the cavity space K toward the interior 102 while diffusing it.

[0025] The light transmissive material 7 is attached in a state of being extended with respect to the frame surface of the lower frame 201. Thereby, the light transmissive material 7 is installed in a state of being suspended from the ceiling 101 via the suspension fittings 200 together with the ceiling material 2. That is, the light transmissive material 7 is configured as the light emitting part 5 by replacing a part of the ceiling material 2.

[0026] The light L transmitted through the light transmissive material 7 is emitted from the cavity space K toward the interior 102 of the building 100. Thereby, it is possible to illuminate the interior 102 of the building 100.

[0027] In addition, in the present embodiment, a configuration in which one light emitting part 5 is provided on the ceiling 101 is illustrated, but a configuration in which a plurality of light emitting parts 5 are provided is also possible. Also, the opening 6 is not limited to the rectangular shape described above, and may be a circular shape, a polygonal shape, or the like.

[0028] A plurality of moving lights 4 are located on the side (upper surface side) facing the recessed space K of the ceiling material 2 and are arranged side by side around the opening 6. In the present embodiment, four moving lights 4 are arranged at the central portions along each side of the opening 6. The four moving lights emit light L toward the reflecting surface 3a of the mirror sheet 3 from their respective positions. Further, the plurality of moving lights 4 are supported by the ceiling material 2 or the lower frame 201.

[0029] In the ceiling lighting structure 1 of the present embodiment having the above-described configuration, light L is irradiated from each position of the moving light 4 onto the uneven reflecting surface 3a of the mirror sheet 3 described above. The light L incident on the uneven reflecting surface 3a is reflected toward the light emitting portion 5. Also, the order in which each moving light 4 is lit and the emission direction of the light L are changed. Thereby, it is possible to generate a natural fluctuation in the light L irradiated from the ceiling 101 of the building 100 toward the interior 102.

[0030] That is, in the ceiling lighting structure 1 of the present embodiment, it is possible to perform an effect by the light L irradiated from the ceiling 101 of the building 100 toward the interior 102 without adopting a structure in which a liquid, which is a heavy object, is installed on the ceiling 101 as in the prior art.

[0031] Also, in the ceiling lighting structure 1 of the present embodiment, the mirror sheet 3 is extended on the upper frame 202 attached to the base end (upper end) side of the above-described hanging fitting 200, and the ceiling material 2 and the translucent material 7 are extended on the lower frame 201 attached to the tip end (lower end) side of the hanging fitting 200, so that the construction can be easily performed.

[0032] Note that the present invention is not necessarily limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0033] For example, regarding the above-mentioned light source 4, not only the moving light described above but also a stationary lamp or the like may be used. Further, regarding the above-mentioned mirror sheet 3, it is not limited to the one having the uneven reflecting surface 3a described above, and it may have a regular uneven reflecting surface 3a or a flat reflecting surface 3a.

[0034] Further, the mirror sheet 3 may be extended in a curved or inclined state at a position facing the light-emitting portion 5. Thereby, while controlling the reflection direction of the light L reflected by the reflecting surface 3a, it is possible to efficiently emit the light L from the light-emitting portion 5 toward the interior 102 of the building 100.

[0035] In the above-mentioned ceiling lighting structure 1, by changing the height of the mirror sheet 3 installed in the above-mentioned recessed space K, it is possible to arbitrarily adjust the dimension between the ceiling member 2 and the mirror sheet 3.

[0036] Further, the ceiling member 2 may be configured such that a reflecting surface is provided on the side (upper surface side) facing the recessed space K. Thereby, it is possible to reflect the light L between the reflecting surface 3a of the mirror sheet 3 and the reflecting surface of the ceiling member 2, and efficiently utilize the light L emitted from the light source 4.

[0037] Furthermore, by making the suspension fitting 200 made of a transparent resin, it is possible to prevent unevenness from occurring in the light L in the recessed space K due to the shadow of the suspension fitting, or the shadow of the suspension fitting 200 from being reflected on the light-emitting portion 5.

[0038] Similarly, by applying a plating treatment to the surface of the lower frame 201, the light L is reflected on the surface of the lower frame 201, and it is possible to prevent unevenness from occurring in the light L in the recessed space K.

Explanation of Reference Numerals

[0039] 1... Lighting structure 2... Ceiling member 3... Reflecting portion (mirror sheet) 3a... Reflecting surface 4... Light source (moving light) 5... Light-emitting portion 6... Opening 7... Translucent material 100... Building 101... Ceiling 102... Interior K... Recessed space L... Light

Claims

1. A ceiling material installed with a space provided between it and the ceiling of a building, a reflecting portion provided on the ceiling side within the space, a light source that emits light within the space, and a light-emitting portion that emits light from the space toward the interior of the building, comprising: The ceiling lighting structure, wherein the reflecting portion includes a mirror sheet extended within the space.

2. The ceiling lighting structure according to claim 1, wherein the mirror sheet has a concave-convex reflecting surface on the side facing the space.

3. The ceiling lighting structure according to claim 1, wherein the light-emitting portion is composed of an opening provided at a position facing the reflecting portion of the ceiling material and a light-transmitting material covering the opening.

4. The ceiling lighting structure according to claim 3, wherein the light-transmitting material is a film material.

5. The ceiling lighting structure according to claim 3, wherein a plurality of the light sources are arranged side by side around the opening.

6. The ceiling lighting structure according to claim 1, wherein the light source is a moving light.

7. The ceiling lighting structure according to claim 1, wherein the ceiling material is installed in a state of being suspended from the ceiling.

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