Building component, light irradiation system, and lighting system

Abstract

Provided are a building member, a light irradiation system, and a lighting system, all of which can reduce the weight of a building member that emits illumination light. A building member (10) forms at least a portion of a structure (1) facing an object space (S1). The building member (10) has a first function, a second function, and a third function. The first function is a function of emitting illumination light (L2) toward the object space (S1). The second function is a function of allowing incident light to enter the building member (10). The incident light is emitted from a light source (2) and is incident on the building member (10) via a light transmission member (3), the light source (2) being disposed outside a projection area (A10) of the building member (10) as viewed from the object space (S1). The third function is a function of converting the incident light into the illumination light (L2).

Description

Technical Field

[0001] The present invention generally relates to building components, light irradiation systems and lighting systems, and more specifically, to building components that emit illumination light, light irradiation systems including the building components and lighting systems including the light irradiation systems. Background Technology

[0002] Patent Document 1 describes an architectural panel with an illumination function. The architectural panel with an illumination function described in Patent Document 1 includes an outer frame, a metal frame, a front panel, a light source, and a light guide plate. The outer frame is composed of architectural components. The metal frame is attached to the outer frame. The front panel is detachably attached to the metal frame. The light guide plate is arranged between the metal frame and the front panel. The light source is configured such that its light-emitting portion faces the light guide plate. The light guide plate guides incident light from the light source through it and emits light from its emitting surface facing the front panel.

[0003] In addition, Patent Document 1 discloses that when a building panel is constructed as a ceiling, a building panel with lighting function is installed between two building panels without lighting function.

[0004] It is difficult to achieve the weight reduction of the building panel with lighting function described in Patent Document 1.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: JP2013-114982A Summary of the Invention

[0008] Therefore, one object of the present invention is to provide building components, light irradiation systems, and lighting systems, all of which are configured or designed to reduce the weight of building components capable of emitting illumination light.

[0009] According to one aspect of the invention, a building component forms at least a portion of a structure oriented towards an object space. The building component has a first function, a second function, and a third function. The first function is to emit illumination light toward the object space. The second function is to allow incident light to enter the building component. The incident light is emitted from a light source disposed outside the projection area of ​​the building component as viewed from the object space, and is incident on the building component via a light transmission component. The third function is to convert the incident light into illumination light.

[0010] According to another aspect of the invention, the light irradiation system includes building components and light transmission components.

[0011] The lighting system according to another aspect of the invention includes a light illumination system and a light source. Attached Figure Description

[0012] Figure 1 The configuration of a lighting system including building components according to the first embodiment is shown;

[0013] Figure 2 A is along Figure 2 A sectional view of the building component cut off by plane X2-X2 as shown in B;

[0014] Figure 2 B is a bottom view showing the building components;

[0015] Figure 3 It is a perspective view showing the structure including building components;

[0016] Figure 4 The configuration of another lighting system including building components according to the first embodiment is shown;

[0017] Figure 5 The configuration of a lighting system including building components according to the second embodiment is shown;

[0018] Figure 6 The configuration of a lighting system including building components according to a third embodiment is shown;

[0019] Figure 7 The configuration of a lighting system including building components according to the fourth embodiment is shown;

[0020] Figure 8 This illustrates the configuration of a lighting system including building components according to a fifth embodiment; and

[0021] Figure 9 The configuration of a lighting system including building components according to the sixth embodiment is shown. Detailed Implementation

[0022] Note that the accompanying drawings referenced in the following description of the first to sixth embodiments are merely schematic representations, and the dimensions and thicknesses of the various components and their ratios are not always scaled proportionally to their actual size ratios.

[0023] (First Embodiment)

[0024] Below, we will refer to Figure 1-3 The building component 10, the light irradiation system 100, and the lighting system 200 according to the first embodiment are described.

[0025] (1) Overview

[0026] Building component 10 serves as at least a part of the structure 1 of the object-oriented space S1. "Object-oriented space S1" means that the structure 1 is in contact with the object space S1. The structure 1, including building component 10 according to the first embodiment, is in contact with the object space S1 to define the object space S1. The structure 1 may be a ceiling (see reference) in a facility (e.g., an office building). Figure 3 The object space S1 is the space below the ceiling. The ceiling can be a complex ceiling system and includes a grid-like support assembly, multiple ceiling components (ceiling panels) 9 supported by the support assembly, and building members 10. Each of the multiple ceiling components 9 has a panel shape. When viewed along the thickness direction of the ceiling component 9, the ceiling component 9 has a square shape, but the ceiling component 9 can also be rectangular. The building member 10 has a panel shape. The building member 10 is a ceiling component. Like the ceiling component 9, the building member 10 is supported by the support assembly. The building member 10 is arranged adjacent to at least one of the multiple ceiling components 9.

[0027] Building component 10 will incident light L1 (reference) Figure 2 A) The incident light L2 is converted into illumination light L2 and emitted into the object space S1. The incident light L1 is emitted from the light source 2 and incident on the building member 10 via the light transmission component 3. The light source 2 is located outside the projection area A10 of the building member 10 as viewed from the object space S1. "Projection area A10 of the building member 10 as viewed from the object space S1" refers to the projection area of ​​the building member 10 as viewed along a direction perpendicular to the main surface 111 of the building member 10 that contacts the object space S1.

[0028] The illumination system 100 includes a building component 10 and a light transmission component 3. The lighting system 200 includes the illumination system 100 and a light source 2. The illumination system 100 causes light emitted from the light source 2 to be incident on the building component 10 as incident light L1 via the light transmission component 3, and converts the incident light L1 into illumination light L2 within the building component 10, and emits the illumination light L2 from the building component 10. The lighting system 200 causes the light source 2 to emit light, causes the light to be incident on the building component 10 as incident light L1 via the light transmission component 3, and converts the incident light L1 into illumination light L2 within the building component 10, and emits the illumination light L2 from the building component 10.

[0029] Facilities are not limited to office buildings, but can also be stand-alone houses, apartments, shops, museums, hotels, factories, stadiums, airports or other buildings.

[0030] (2) Configuration of lighting system

[0031] like Figure 1 As shown, the lighting system 200 includes a light source 2, a light transmission component 3, and a building component 10.

[0032] (2.1) Light source

[0033] Light source 2 includes laser source 21. The light emitted from light source 2 can be light emitted from laser source 21. Laser source 21 can be, for example, a semiconductor laser that emits blue light (laser beam), thus allowing light source 2 to emit blue light. For example, the semiconductor laser can be a GaN-based semiconductor laser. For example, the peak wavelength of the laser falls in the range of 440 nm to 480 nm.

[0034] The light source 2 includes a housing 20 that houses the laser light source 21. The housing 20 is located away from the building member 10. More specifically, the light source 2 is located outside the projection area A10 of the building member 10 as viewed from the object space S1. For example, the light source 2 is located in the ceiling space. However, this is only an example and should not be construed as limiting. The light source 2 may be located behind a wall that defines the object space S1 together with the structure 1 and is positioned on the floor surface. In the building member 10 according to the first embodiment, the projection area A10 of the building member 10 as viewed from the object space S1 is the projection area (vertical projection area) of the building member 10 as viewed from the object space S1 in the thickness direction of the building member 10 having a panel shape. In short, the projection area A10 is the projection area along the thickness direction of the building member 10.

[0035] (2.2) Optical transmission components

[0036] Optical transmission component 3 includes optical fiber 31. Optical fiber 31 includes a core, a cladding, and a coating. The cladding covers the outer peripheral surface of the core. The coating covers the outer peripheral surface of the cladding. The core has a first end face and a second face opposite to the first end face. The core has a circular cross-section taken along a plane perpendicular to the optical axis. The cladding is coaxially disposed with the core. The core is made of a light-transmitting material. The light-transmitting material can be, for example, a fluoride, an oxide, or a nitride. The fluoride can be glass fluoride. The oxide can be, for example, silicon oxide or quartz. The refractive index of the cladding is less than the refractive index of the core. The coating covers the outer peripheral surface of the cladding. The coating material can be, for example, a resin.

[0037] For example, the core of fiber 31 can have a diameter ranging from 20 μm to 1000 μm. For example, fiber 31 can have a length ranging from 1 m to 100 m. If the core diameter of fiber 31 is less than 20 μm, it becomes difficult to efficiently optically couple the light from laser source 21 to fiber 31. If the core diameter of fiber 31 is greater than 1000 μm, it becomes difficult to bend fiber 31 with a small bending radius, thus increasing operational limitations.

[0038] The optical fiber 31 includes a first end 311 and a second end 312 arranged opposite to each other along its length. The first end 311 of the optical fiber 31 includes an incident end face (the first end face of the core) on which light emitted from the light source 2 is incident. The second end 312 of the optical fiber 31 includes an exit end face (the second end face of the core) on which light that has been incident on the incident end face and transmitted through the optical fiber 31 is emitted. For example, the first end 311 of the optical fiber 31 can be connected to the laser light source 21 via an optical fiber connector. This connection allows the core of the optical fiber 31 to be optically coupled to the laser light source 21. The second end 312 of the optical fiber 31 is connected to the optical input / output section 12 of the building component 10 via, for example, an optical fiber connector. This connection allows the core of the optical fiber 31 to be optically coupled to the optical input / output section 12 of the building component 10.

[0039] When a person in object space S1 views structure 1, he or she cannot see optical fiber 31 because optical fiber 31 is covered by structure 1 containing building component 10. In other words, a portion of optical fiber 31 is obscured by building component 10.

[0040] (2.3) Building components

[0041] According to the first embodiment, the building member 10 is a ceiling assembly arranged adjacent to at least one of a plurality of ceiling assemblies 9 (which, by definition, do not include the building member 10). However, this is merely an example and should not be construed as limiting. The building member 10 may be arranged adjacent to other building members 10. Similar to the ceiling assembly 9, the building member 10 has a panel shape and is square when viewed in the thickness direction. However, this is merely an example and should not be construed as limiting. The building member 10 may be rectangular. In this specification, "viewing the building member 10 in the thickness direction" means, for example, viewing the building member 10 from the object space S1 in the thickness direction of the building member 10. This does not mean viewing the building member 10 from the side opposite to the object space S1 with reference to the building member 10 in the thickness direction of the building member 10. The size of the building member 10 is the same as the size of the ceiling assembly 9, but their sizes may differ from each other. Similar to the ceiling assembly 9, the building member 10 is supported by a support assembly. The support assembly may be formed, for example, from a plurality of galvanized steel sheets or other similar components.

[0042] Building component 10 includes a main body 11 and a light input / output unit 12. The light input / output unit 12 is integrally formed with the main body 11. Therefore, when building component 10 is supported by a support assembly, the position of the light input / output unit 12 relative to the object space S1 is determined.

[0043] The main body 11 has a panel shape. Viewed along the thickness direction of the building member 10, the outer periphery of the main body 11 is the same as the outer periphery of the building member 10. In other words, viewed along the thickness direction of the building member 10, the outer periphery of the building member 10 is the same as the outer periphery of the main body 11. Furthermore, viewed along the thickness direction of the building member 10, the size of the building member 10 is the same as the size of the main body 11.

[0044] The body 11 can be made, for example, of decorative plywood or decorative panels. Examples of decorative plywood include natural wood decorative panels and specially treated decorative panels. Examples of specially treated decorative panels include synthetic resin decorative panels, printed plywood, vinyl chloride decorative plywood, and paper or cloth-covered plywood. Examples of decorative panels include MDF (medium-density fiberboard), volcanic rock silicate fiber reinforced plywood, rock wool board, calcium silicate board, and insulation board. The body 11 includes, for example, light-resistant, non-flammable, sound-absorbing, and heat-insulating properties. Here, the body 11 may include at least light-resistant and non-flammable properties.

[0045] Viewed in the thickness direction of the building member 10, the light input / output portion 12 is located within the circumference (outer edge) of the main body 11 and is separate from the circumference of the main body 11. In the building member 10 according to the first embodiment, the light input / output portion 12 penetrates approximately the central portion of the main body 11. Viewed in the thickness direction of the building member 10, the outer periphery of the light input / output portion 12 is circular. To make the light input / output portion 12 almost invisible to a person in the object space S1, the area of ​​the light input / output portion 12 is appropriately much smaller than the area of ​​the main body 11 when viewed in the thickness direction of the building member 10. Viewed in the thickness direction of the building member 10, the diameter of the light input / output portion 12 is equal to or less than one-tenth of a side of the main body 11, appropriately equal to or less than one-twentieth, and more appropriately equal to or less than one-thirtieth.

[0046] The light input / output section 12 is semi-transparent, allowing the incident light L1 (reference) to pass through. Figure 2 A portion of the incident light L1 can pass through it. Incident light L1 is emitted from light source 2 and incident on building member 10 via light transmission assembly 3. Light source 2 is positioned outside the projection area A10 of building member 10 as viewed from object space S1. Additionally, light input / output unit 12 emits illumination light L2, including a portion of incident light L1, toward object space S1. Illumination light L2 can be white light.

[0047] The building component 10 has a first function, a second function, and a third function. The first function is to emit illumination light L2 toward the object space S1. The second function is to allow incident light L1 to enter the building component 10. The incident light L1 is emitted from the light source 2 and incident on the building component 10 via the light transmission assembly 3. The light source 2 is located outside the projection area A10 of the building component 10 as viewed from the object space S1. The third function is to convert the incident light L1 into illumination light L2. The incident light L1 is highly coherent light (coherent light), and the illumination light L2 is low-coherent light (incoherent light). In the building component 10, the light input / output unit 12 has the first, second, and third functions.

[0048] The characteristic of the light input / output section 12 being "semi-transparent" means that the ratio of the light energy of the illumination light L2 to the light energy of the incident light L1 incident on the light input / output section 12 is equal to or greater than 10%. This ratio may suitably be equal to or greater than 20%, and more suitably equal to or greater than 40%.

[0049] The optical input / output unit 12 includes an optical input unit 121, a wavelength conversion unit 122, and an optical output unit 123. In the optical input / output unit 12, the optical output unit 123, the optical input unit 121, and the wavelength conversion unit 122 each have a first function, a second function, and a third function. The third function includes converting incident light L1 into illumination light L2 containing light having a wavelength different from that of the incident light L1.

[0050] The light input unit 121 allows incident light L1 to enter the building component 10. The incident light L1 is incident on the building component 10 via the light transmission assembly 3 and transmitted to the wavelength conversion unit 122. In other words, the light input unit 121 appropriately has low reflectivity and absorptivity for the incident light L1. The light input unit 121 may include, for example, an optical connector, to which a fiber optic connector is detachably connected, and which is connected to the second end 312 of the optical fiber 31.

[0051] The wavelength conversion section 122 includes, for example, a light-transmitting material section and fluorescent particles. In this case, the wavelength conversion section 122 includes a mixture of the light-transmitting material section and fluorescent particles. The wavelength conversion section 122 includes a light-transmitting material section containing a plurality of fluorescent particles. The material of the light-transmitting material section (light-transmitting material) is suitably a material with high transmittance to visible light. For example, the light-transmitting material can be a silicone-based resin. This allows the light input / output section 12 to have improved heat resistance and weather resistance compared to the wavelength conversion section 122. The "silicone-based resin" can be, for example, a silicone resin or a modified silicone resin. The wavelength conversion section 122 includes fluorescent particles as wavelength conversion elements. The wavelength conversion elements convert a portion of the incident light L1 supplied by the light input section 121 and emit light having a wavelength different from that of the incident light L1. As fluorescent particles, for example, yellow fluorescent particles that radiate yellow light can be used. The light emitted from the yellow fluorescent particles (fluorescence) can, for example, suitably have an emission spectrum with the main emission peak wavelength falling in the wavelength range of 530 nm to 580 nm. The yellow fluorescent particles can be, for example, Y3Al5O activated with Ce. 12 However, this is merely an example and should not be interpreted as restrictive.

[0052] Wavelength conversion unit 122 includes only yellow fluorescent particles as wavelength conversion elements. However, this is merely an example and should not be construed as limiting. Wavelength conversion unit 122 may include, for example, yellow fluorescent particles, yellow-green fluorescent particles, green fluorescent particles, and red fluorescent particles. In other words, wavelength conversion unit 122 may include a variety of fluorescent particles.

[0053] The light output section 123 is made of a light-transmitting material that does not contain fluorescent particles. For example, the light-transmitting material may be silicone resin. However, this is only an example and should not be construed as limiting. The light-transmitting material may include, for example, fluorine-based resin, low-melting-point glass, or sol-gel glass. The light-transmitting material may suitably include materials with high transmittance to visible light. The light output section 123 may include light-scattering particles. In addition, the light output section 123 may have a lens shape capable of controlling the light distribution of the illumination light L2 emitted from the light output section 123. Since the light output section 123 is in contact with the object space S1, the light output section 123 may include a reflection reduction section to reduce Fresnel reflection. The reflection reduction section may be made of a material with a refractive index lower than that of the light-transmitting material section of the wavelength conversion section 122, or it may be a microscopic surface inhomogeneity with a height difference equal to or less than 200 nm, either way is suitable.

[0054] (2.4) Other components of the lighting system

[0055] The lighting system 200 may also include a power supply unit. The power supply unit supplies power to the laser light source 21 and other components. The power supply unit may include a drive circuit for driving the laser light source 21 and a control circuit for controlling the drive circuit. In the lighting system 200, the control circuit's control of the drive circuit allows adjustment of the light output of the laser light source 21, resulting in adjustable brightness (intensity) of the illumination light L2. The power supply unit may be contained within the housing 20 of the light source 2. However, this is merely an example and should not be construed as limiting. The power supply unit may not be contained within the housing 20. For the power supply unit, the power supply voltage may be supplied from an external source via a wire.

[0056] (3) Operation of the lighting system

[0057] According to the lighting system 200, the light source 2 (more specifically, the laser light source 21) emits light. In the lighting system 200, the light (blue light) emitted from the light source 2 is incident on and transmitted through the optical fiber 31, and is incident on the light input / output unit 12 of the building component 10. The incident light L1, which is incident on the light input / output unit 12, is converted into illumination light L2, and illumination light L2 is emitted. Illumination light L2 can be a mixed light of blue light and yellow light. The mixed light emitted from the light input / output unit 12 is incoherent light.

[0058] (4) Summary

[0059] According to the first embodiment, the building component 10 forms at least a portion of the structure 1 facing the object space S1. The building component 10 has a first function, a second function, and a third function. The first function is to emit illumination light L2 toward the object space S1. The second function is to allow incident light L1 to enter the building component. The incident light L1 is emitted from a light source 2 located outside the projection area A10 of the building component 10 as viewed from the object space S1, and is incident on the building component 10 via a light transmission component 3. The third function is to convert the incident light L1 into illumination light L2.

[0060] The building component 10, the light irradiation system 100, and the lighting system 200 according to the first embodiment enable the reduction of the weight of the building component 10 that emits the lighting light L2.

[0061] Furthermore, according to the first embodiment, the building component 10 converts incident light from the laser source 21, rather than light from a light-emitting diode (LED), into illumination light L2 in the light input / output section 12, and emits illumination light L2. This makes it possible to narrow the light distribution angle of the illumination light L2.

[0062] Furthermore, the building component 10 according to the first embodiment allows for a reduction in the size of the light input / output section 12, and makes the design of the building component 10 more impressive to the observer. Additionally, since the building component 10 according to the first embodiment does not require a power source, it increases the degree of freedom in construction.

[0063] Furthermore, the lighting system 200 according to the first embodiment allows the light source 2, which needs to be powered, to be located separately from the building component 10, thereby improving the maintainability of the light source 2. Note that the lighting system 200 according to the first embodiment includes a plurality of building components 10 and a plurality of light sources 2 respectively corresponding to the building components 10.

[0064] Furthermore, the building component 10 according to the first embodiment allows the light source 2 included in the lighting system 200 to be positioned outside the projection area A10 of the building component 10, thereby reducing the temperature rise of the building component 10.

[0065] Furthermore, the lighting system 200 according to the first embodiment employs laser light (coherent light) emitted from the laser source 21. Coherent light has high directionality, thus it is suitable for long-distance transmission in space and coupling to the optical fiber 31. Therefore, when the light source 2 is located outside the projection area A10 of the building component 10, the lighting system 200 enables efficient transmission of light into the projection area A10 of the building component 10 to form incident light L1. Conversely, the illumination light L2 is incoherent light, thus suitable for uniformly illuminating the object space S1. In the building component 10, the light illumination system 100, and the lighting system 200 according to the first embodiment, the building component 10 has a third function, namely a coherence reduction function, which converts the coherent light (incident light L1) suitable for transmission into incoherent light (illumination light L2) suitable for illumination. This allows for a reduction in the weight of the building component 10 emitting the advanced illumination light L2.

[0066] (Variations of the first embodiment)

[0067] Below, we will refer to Figure 4 A variation of the lighting system 200 of the first embodiment is described. In the following description, any constituent elements of this variation of the lighting system 200 that have the same function as the counterpart of the first embodiment will be indicated by the same reference numerals as the counterpart, and their description will be omitted herein.

[0068] The difference between the lighting system 200 according to this variant and the lighting system 200 according to the first embodiment is that light is incident from a light source 2 onto a plurality of building components 10.

[0069] In the lighting system 200 according to this variant, the light source 2 includes a beam splitter that splits the light emitted from the laser light source 21 and directs the light onto a plurality of optical fibers 31. In the lighting system 200 according to variant 1, this facilitates the construction of the structure 1 comprising a plurality of building components 10 and the lighting system 200.

[0070] In the lighting system 200, the light source 2 may include multiple laser light sources 21, and the laser light sources 21 and the optical fiber 31 may be connected to each other one-to-one.

[0071] Compared to the case where the light source 2 corresponds one-to-one with the building component 10, the modified lighting system 200 allows for a reduction in the number of light sources 2, thereby improving maintainability.

[0072] (Second Embodiment)

[0073] Below, we will refer to Figure 5 The building component 10a, the light irradiation system 100a, and the lighting system 200a according to the second embodiment are described below. In the following description, any constituent elements of the building component 10a, the light irradiation system 100a, and the lighting system 200a of the second embodiment that have the same function as their counterparts in the first embodiment described above will be indicated by the same reference numerals as their counterparts, and their descriptions are omitted here.

[0074] The building component 10a according to the second embodiment differs from the building component 10 according to the first embodiment in that the building component 10a includes a plurality of (e.g., two in this example) light input / output units 12. The light illumination system 100a according to the second embodiment differs from the light illumination system 100 according to the first embodiment in that the light illumination system 100a includes the building component 10a, instead of the building component 10 of the light illumination system 100 according to the first embodiment. Furthermore, the lighting system 200a according to the second embodiment differs from the lighting system 200 according to the first embodiment in that the lighting system 200a includes the light illumination system 100a, instead of the light illumination system 100 according to the first embodiment.

[0075] In building component 10a, multiple light input / output units 12 are separated from each other. Light illumination system 100a includes multiple optical fibers 31 corresponding one-to-one with the multiple light input / output units 12. In lighting system 200a, light source 2 includes a distributor that directs light emitted from a laser light source 21 onto the multiple optical fibers 31.

[0076] Similar to the building member 10 according to the first embodiment, the building member 10a according to the second embodiment forms at least a portion of the structure 1 facing the object space S1. The building member 10a has a first function, a second function, and a third function. The first function is to emit illumination light L2 toward the object space S1. The second function is to allow incident light L1 to enter the building member 10a. The incident light L1 is emitted from a light source 2 located outside the projection area A10 of the building member 10a as viewed from the object space S1, and is incident on the building member 10a via a light transmission component 3. The third function is to convert the incident light L1 into illumination light L2.

[0077] The building component 10a, the light irradiation system 100a, and the lighting system 200a according to the second embodiment enable the weight of the building component 10a to be reduced by emitting illumination light L2 from two points.

[0078] According to the second embodiment, the building component 10a is configured such that light from a light source 2 is incident on a plurality of light input / output sections 12. This makes it easier to implement while having a plurality of light input / output sections 12 in the building component 10a.

[0079] (Third Embodiment)

[0080] Below, we will refer to Figure 6 The building component 10b, the light irradiation system 100b, and the lighting system 200b according to the third embodiment are described. In the following description, any constituent elements of the building component 10b, the light irradiation system 10b, and the lighting system 200b of the third embodiment that have the same function as their counterparts in the building component 10a, the light irradiation system 100a, and the lighting system 200a of the second embodiment will be indicated by the same reference numerals as their counterparts, and their descriptions are omitted here.

[0081] The building component 10b according to the third embodiment differs from the building component 10a according to the second embodiment in that the plurality of light input / output units 12 have different light distribution characteristics. The light illumination system 100b according to the third embodiment differs from the light illumination system 100a according to the second embodiment in that the light illumination system 100b includes the building component 10b, instead of the building component 10a of the light illumination system 100a according to the second embodiment. Furthermore, the lighting system 200b according to the third embodiment differs from the lighting system 200a according to the second embodiment in that the lighting system 200b includes the light illumination system 100b, instead of the light illumination system 100a according to the second embodiment.

[0082] In the building component 10b according to the third embodiment, from Figure 6The illumination light L2 emitted by the light input / output unit 12 on the left has a greater light distribution angle than that emitted from the light source. Figure 6 The light distribution angle of the illumination light L2 emitted by the light input / output unit 12 on the right side. Here, Figure 6 The optical input / output section 12 on the left side and Figure 6 The light input / output section 12 on the right side includes light output sections 123 with different lens shapes, so their light distribution angles are different from each other.

[0083] In the building component 10b according to the third embodiment, from Figure 6 The illumination light L2 emitted by the light input / output unit 12 on the left can be used as ambient lighting, and from... Figure 6 The illumination light L2 emitted by the light input / output unit 12 on the right can be used as mission illumination. Therefore, the building component 10b, the light illumination system 100b, and the lighting system 200b according to the third embodiment enable mission environment illumination.

[0084] Similar to the building member 10a according to the second embodiment, the building member 10b according to the third embodiment forms at least a portion of the structure 1 facing the object space S1. The building member 10b has a first function, a second function, and a third function. The first function is to emit illumination light L2 toward the object space S1. The second function is to allow incident light L1 to enter the building member 10b. The incident light L1 is emitted from a light source 2 located outside the projection area A10 of the building member 10b as viewed from the object space S1, and is incident on the building member 10b via a light transmission assembly 3. The third function is to convert the incident light L1 into illumination light L2.

[0085] The building component 10b, the light irradiation system 100b, and the lighting system 200b according to the third embodiment can reduce the weight of the building component 10b that emits illumination light L2 from two points.

[0086] (Fourth Embodiment)

[0087] Below, we will refer to Figure 7 The building component 10c, the light irradiation system 100c, and the lighting system 200c according to the fourth embodiment are described below. In the following description, any constituent elements of the building component 10c, the light irradiation system 100c, and the lighting system 200c of the fourth embodiment that have the same function as their counterparts in the building component 10, the light irradiation system 100, and the lighting system 200 of the first embodiment will be indicated by the same reference numerals as their counterparts, and their descriptions are omitted here.

[0088] The building component 10c according to the fourth embodiment differs from the building component 10 according to the first embodiment in that light from the light source 2 is incident on the building component 10c (e.g., its light input / output section 12) via the light transmission component 3c. The light illumination system 100c according to the fourth embodiment differs from the light illumination system 100 according to the first embodiment in that the light illumination system 100c includes the building component 10c and the light transmission component 3c, instead of the building component 10 and the light transmission component 3c of the light illumination system 100c according to the first embodiment. Furthermore, the lighting system 200c according to the fourth embodiment differs from the lighting system 200 according to the first embodiment in that the lighting system 200c includes the light illumination system 100c, instead of the light illumination system 100 according to the first embodiment.

[0089] The light transmission component 3c includes a reflector 32. The reflector 32 is positioned relative to the object space S1 in the thickness direction of the building member 10c, with the building member 10c as a reference. In other words, the reflector 32 is positioned closer to the light input section 121 of the light input / output section 12 and further away from the light output section 123, and is separated from the light input / output section 12 in the thickness direction of the building member 10c. The reflector 32 is disposed within the projection area A10 along the thickness direction of the building member 10c, and overlaps with the light input / output section 12 in the thickness direction of the building member 10c. The reflector 32 is separated from the light source 2 in a direction perpendicular to the thickness direction of the building member 10c.

[0090] The reflector 32 is configured to reflect light emitted from the light source 2 (e.g., its laser source 21) and transmitted through space toward the building component 10c (e.g., its light input / output section 12). Here, the building component 10c has a second function that allows incident light L1 to enter the building component 10c. The incident light L1 is emitted from the light source 2, which is located outside the projection area A10 of the building component 10c as viewed from the object space S1, and is incident on the building component 10c via the light transmission assembly 3c. The light transmission assembly 3c does not include a component corresponding to the optical fiber 31 included in the light transmission assembly 3 of the light illumination system 100 and the lighting system 200 according to the first embodiment. Therefore, the light input section 121 with the second function does not have an optical fiber connector.

[0091] Similar to the building member 10 according to the first embodiment, the building member 10c according to the fourth embodiment forms at least a portion of the structure 1 facing the object space S1. The building member 10c has a first function, a second function, and a third function. The first function is to emit illumination light L2 toward the object space S1. The second function is to allow incident light L1 to enter the building member 10c. The incident light L1 is emitted from a light source 2 located outside the projection area A10 of the building member 10c as viewed from the object space S1, and is incident on the building member 10c via a light transmission component 3c. The third function is to convert the incident light L1 into illumination light L2.

[0092] The building component 10c, the light irradiation system 100c, and the lighting system 200c according to the fourth embodiment enable the reduction of the weight of the building component 10c that emits the lighting light L2.

[0093] (Fifth Embodiment)

[0094] Below, we will refer to Figure 8 The building component 10d, the light irradiation system 100d, and the lighting system 200d according to the fifth embodiment are described. In the following description, any constituent elements of the building component 10d, the light irradiation system 100d, and the lighting system 200d of the fifth embodiment that have the same function as their counterparts in the building component 10c, the light irradiation system 100c, and the lighting system 200c of the fourth embodiment will be indicated by the same reference numerals as their counterparts, and their descriptions are omitted here.

[0095] In the building member 10d according to the fifth embodiment, the incident light L1 incident on the building member 10d is white light. The incident light L1 is emitted from a light source 2 located outside the projection area A10 observed from the object space S1 of the building member 10d, and is incident on the building member 10d via the light transmission component 3c.

[0096] The laser source 21 of the light source 2 includes a first semiconductor laser that emits red light, a second semiconductor laser that emits green light, and a third semiconductor laser that emits blue light, so as to emit white light containing red, green and blue light.

[0097] In the building component 10d, the light input / output section 12d does not include a component corresponding to the wavelength conversion section 122 of the light input / output section 12 of the building component 10c according to the fourth embodiment. The building component 10d includes a first function, a second function, and a third function in the light input / output section 12d. The first function is to emit illumination light L2 toward the object space S1. The second function is to allow incident light L1 to enter the building component 10d. The incident light L1 is emitted from the light source 2 and incident on the building component 10d via the light transmission component 3c, the light source 2 being located outside the projection area A10 of the building component 10d as viewed from the object space S1. The third function is to convert the incident light L1 into illumination light L2. The light input / output section 12d includes an optical diffuser element 124 disposed between the light input section 121 and the light output section 123, instead of the wavelength conversion section 122 of the building component 10c according to the fourth embodiment. The optical diffuser element 124 is, for example, an optical diffuser plate made of glass. In the building component 10d according to the fifth embodiment, the optical diffuser element 124 has a third function. In the building component 10d, the third function includes converting incident light L1 into illumination light L2 having light distribution characteristics different from those of the incident light L1. Incident light L1 is light with high coherence, while illumination light L2 is light with relatively low coherence.

[0098] The building component 10d, the light irradiation system 100d, and the lighting system 200d according to the fifth embodiment enable the weight of the building component 10d that emits the lighting light L2 to be reduced.

[0099] Since the building component 10d according to the fifth embodiment does not include a component corresponding to the wavelength conversion section 122 of the building component 10c, the temperature rise of the building component 10d is further reduced, thereby extending the service life of the building component 10d compared to the building component 10c.

[0100] (Sixth Embodiment)

[0101] Below, we will refer to Figure 9 The building component 10e, the light irradiation system 100e, and the lighting system 200e according to the sixth embodiment are described below. In the following description, any constituent elements of the building component 10e, the light irradiation system 100e, and the lighting system 200e of the sixth embodiment that have the same function as their counterparts in the building component 10c, the light irradiation system 100c, and the lighting system 200c of the fourth embodiment described above will be indicated by the same reference numerals as their counterparts, and their descriptions are omitted here.

[0102] The building component 10e according to the sixth embodiment differs from the building component 10c according to the fourth embodiment in that the building component 10e includes a plurality of (e.g., two in this example) light input / output units 12. The light illumination system 100e according to the sixth embodiment differs from the light illumination system 100c according to the fourth embodiment in that the light illumination system 100e includes the building component 10e, rather than the building component 10c of the light illumination system 100c according to the fourth embodiment. Furthermore, the lighting system 200e according to the sixth embodiment differs from the lighting system 200c according to the fourth embodiment in that the lighting system 200e includes the light illumination system 100e, rather than the light illumination system 100c according to the fourth embodiment.

[0103] In building component 10e, multiple light input / output sections 12 are separated from each other. The light illumination system 100e includes a light transmission component 3e, instead of the light transmission component 3c of the light illumination system 100c according to the fourth embodiment. The light transmission component 3e includes a reflector 33, instead of the reflector 32 included in the light transmission component 3c. The reflector 33 serves as a reflector that allows light from the light source 2 to sweep across the building component 10e. The reflector 33 allows light from the light source 2 to selectively incident as incident light L1 onto any one of the multiple light input / output sections 12 of the building component 10e. The reflector 33 is a microelectromechanical system (MEMS) reflector. However, this is merely an example and should not be construed as limiting. For example, the reflector 33 could be a polygonal reflector.

[0104] In the building component 10e according to the sixth embodiment, from Figure 9 The illumination light L2 (referred to as the first illumination light L21) emitted by the light input / output unit 12 on the left side has different properties than that emitted from the light input / output unit 12 on the right side. Figure 9 The properties of the illumination light L2 (referred to as the second illumination light L22) emitted by the light input / output unit 12 on the right. Here, the property of the illumination light L2 means color temperature. However, this is only an example and should not be interpreted as limiting. The properties of the illumination light L2 may include, for example, color rendering performance or light distribution angle.

[0105] Similar to the building member 10c according to the fourth embodiment 4, the building member 10e according to the sixth embodiment forms at least a portion of the structure 1 facing the object space S1. The building member 10e has a first function, a second function, and a third function. The first function is to emit illumination light L2 toward the object space S1. The second function is to allow incident light L1 to enter the building member 10e. The incident light L1 is emitted from a light source 2 located outside the projection area A10 of the building member 10e as viewed from the object space S1, and is incident on the building member 10e via the light transmission component 3e. The third function is to convert the incident light L1 into illumination light L2.

[0106] The building component 10e, the light irradiation system 100e, and the lighting system 200e according to the sixth embodiment enable the reduction of the weight of the building component 10e, which selectively emits illumination light L2 from two points.

[0107] (Other variations)

[0108] Note that the first to sixth embodiments described above are merely embodiments of various embodiments of the present invention and should not be construed as limiting. Rather, the first to sixth embodiments can be readily modified in various ways according to design choices or any other factors without departing from the scope of the present invention.

[0109] For example, when viewed along the thickness direction of the building component 10, the outer periphery of the light input / output section 12 does not necessarily have to be circular. It can have, for example, an elliptical, rectangular, polygonal, or star-shaped shape. Polygonal shapes include pentagons and more.

[0110] Furthermore, building component 10 does not necessarily have to be a ceiling component. It can be, for example, a wall component, a floor, or a beam. When used as a ceiling component, wall component, or floor, building component 10 has a panel shape.

[0111] Furthermore, the laser source 21 included in the light source 2 does not necessarily have to be a semiconductor laser that emits blue laser lines. It can be, for example, a semiconductor laser that emits violet laser lines. In this case, the wavelength conversion unit 122 can appropriately include blue fluorescent particles, yellow fluorescent particles, green fluorescent particles, and red fluorescent particles.

[0112] Alternatively, instead of laser source 21, source 2 may include, for example, a light-emitting diode (LED) source and an optical system. The optical system collimates the light from the LED source and emits collimated light.

[0113] (Overview)

[0114] The first to sixth embodiments and their variations described above can be specific implementations of the following aspects of the present invention.

[0115] The building components (10; 10a; 10b; 10c; 10d; 10e) of the first aspect form at least a portion of the structure (1) of the object-oriented space (S1). The building components (10; 10a; 10b; 10c; 10d; 10e) include a first function, a second function, and a third function. The first function is to emit illumination light (L2) toward the object space (S1). The second function is to allow incident light to enter the building components (10; 10a; 10b; 10c; 10d; 10e). The incident light is emitted from the light source (2) and incident on the building components (10; 10a; 10b; 10c; 10d; 10e) via the light transmission components (3; 3c; 3e), and the light source (2) is positioned outside the projection area (A10) of the building components (10; 10a; 10b; 10c; 10d; 10e) as viewed from the object space (S1). The third function is to convert incident light into illumination light (L2).

[0116] The building components (10; 10a; 10b; 10c; 10d; 10e) according to the first aspect enable the reduction of the weight of the building components (10; 10a; 10b; 10c; 10d; 10e) that can emit illumination light (L2).

[0117] In the building components (10; 10a; 10b; 10c; 10d; 10e) that can be realized in combination with the first aspect, the light source (2) includes a laser light source (21).

[0118] The building components (10; 10a; 10b; 10c; 10d; 10e) of the second aspect enable the reduction of the weight of the building components (10; 10a; 10b; 10c; 10d; 10e).

[0119] In the building components (10; 10a; 10b) that can be implemented in combination with the first or second aspect, the optical transmission component (3) includes an optical fiber (31).

[0120] The building components (10; 10a; 10b) in the third aspect can increase the flexibility of the arrangement of the building components (10; 10a; 10b).

[0121] In the building components (10c; 10d; 10e) that can be implemented in combination with the first or second aspect, the light transmission assembly (3c; 3e) includes a reflector (32; 33).

[0122] According to the fourth aspect, the building components (10c; 10d; 10e) are able to allow light from the light source (2) to be incident on the building components (10c; 10d; 10e) without using optical fibers.

[0123] In the building components (10; 10a; 10b; 10c; 10e; 10d) of the fifth aspect which can be realized in combination with any of the first to fourth aspects, the third function includes the function of converting incident light (L1) into illumination light (L2) having light distribution characteristics different from those of the incident light (L1).

[0124] In the building components (10; 10a; 10b; 10c; 10e) of the sixth aspect which can be realized in combination with any of the first to fifth aspects, the third function includes the function of converting incident light (L1) into illumination light (L2) having a wavelength different from that of the incident light (L1).

[0125] In the building components according to the sixth aspect (10; 10a; 10b; 10c; 10e), the illumination light (L2) may be light having a spectrum different from that of the incident light (L1).

[0126] In the building components (10; 10a; 10b; 10c; 10d; 10e) of the seventh aspect which can be realized in combination with any of the first to sixth aspects, the building components (10; 10a; 10b; 10c; 10d; 10e) have a panel shape.

[0127] The building components (10; 10a; 10b; 10c; 10d; 10e) in the seventh aspect enable the reduction of the thickness and weight of the building components (10; 10a; 10b; 10c; 10d; 10e).

[0128] In the building components (10; 10a; 10b; 10c; 10d; 10e) of the eighth aspect which can be realized in combination with any of the first to seventh aspects, the building components (10; 10a; 10b; 10c; 10d; 10e) are ceiling components.

[0129] The building component (10) according to the eighth aspect makes it possible to reduce the weight of the building components (10; 10a; 10b; 10c; 10d; 10e), thereby improving the ease of implementation.

[0130] The light illumination system (100; 100a; 100b; 100c; 100d; 100e) according to any one of the first to eighth aspects includes building components (10; 10a; 10b; 10c; 10d; 10e) and light transmission components (3; 3c; 3e) according to any one of the first to eighth aspects.

[0131] The light illumination system (100; 100a; 100b; 100c; 100d; 100e) according to the ninth aspect enables the reduction of the weight of building components (10; 10a; 10b; 10c; 10d; 10e) that can emit illumination light (L2).

[0132] The lighting system (200; 200a; 200b; 200c; 200d; 200e) according to the tenth aspect includes the light illumination system (100; 100a; 100b; 100c; 100d; 100e) and the light source (2) according to the ninth aspect.

[0133] The lighting system (200; 200a; 200b; 200c; 200d; 200e) according to the tenth aspect enables the reduction of the weight of building components (10; 10a; 10b; 10c; 10d; 10e) that can emit illumination light (L2).

[0134] In the lighting system (200; 200a; 200b; 200c; 200d; 200e) according to the eleventh aspect which can be implemented in conjunction with the tenth aspect, the building component (10) includes a plurality of building components (10). The lighting system (200; 200a; 200b; 200c; 200d; 200e) is configured to allow light emitted from a single light source (2) to be incident on the plurality of building components (10; 10a; 10b; 10c; 10d; 10e).

[0135] According to the lighting system of the eleventh aspect (200; 200a; 200b; 200c; 200d; 200e), the number of light sources (2) is less than the number of building components (10; 10a; 10b; 10c; 10d; 10e), thereby achieving better maintainability.

[0136] In the lighting system (200; 200a; 200b; 200c; 200d; 200e) that can be realized in combination with the eleventh aspect, the lighting light (L2) includes multiple lighting lights emitted from multiple building components (10; 10a; 10b; 10c; 10d; 10e) and having different light distribution characteristics from each other.

[0137] The lighting system according to the twelfth aspect (200; 200a; 200b; 200c; 200d; 200e) can achieve, for example, task environment lighting.

[0138] List of reference numerals

[0139] 1 Structure

[0140] 2 light sources

[0141] 20 housing

[0142] 21 laser sources

[0143] 3, 3c, 3e optical transmission components

[0144] 31 fiber optic

[0145] 311 First End

[0146] 312 Second End

[0147] 32 reflectors

[0148] 33 Reflectors

[0149] Building components 10, 10a, 10b, 10c, 10d, and 10e

[0150] 100, 100a, 100b, 100c, 100d, 100e light irradiation systems

[0151] 200, 200a, 200b, 200c, 200d, 200e lighting systems

[0152] A10 projection area

[0153] L1 incident light

[0154] L2 illumination light

[0155] S1 object space

Claims

1. A building component for forming at least a portion of a structure for an object-oriented space, said building component having a panel shape and comprising: The main body has a panel shape, and when viewed in the thickness direction of the building component, the main body has an outer peripheral shape that is the same as the outer peripheral shape of the building component; as well as The light input / output unit, viewed in the thickness direction of the building component, is located within the circumference of the main body and is separate from the circumference of the main body. The light input / output section penetrates the main body. The optical input / output unit is integrally formed with the main body. The optical input / output unit has a first function, a second function, and a third function. The building components are configured to be supported by a grid-like support assembly within a complex ceiling system and are arranged adjacent to the ceiling components of the complex ceiling system. The first function is to emit illumination light toward the object space. The second function is to allow incident light to enter the building component, the incident light being emitted from a light source located outside the projection area of ​​the building component as viewed from the object space and incident on the building component via a light transmission assembly, and The third function is to convert the incident light into the illumination light. The optical input / output unit includes: A light output unit, wherein the light output unit has the first function. An optical input unit, the optical input unit having the second function, and A wavelength conversion unit, which has the aforementioned third function. When viewed from the object space along the thickness direction of the building component, the light output unit, the wavelength conversion unit, and the light input unit are arranged sequentially. The light output section and the wavelength conversion section are in contact with each other.

2. The building component according to claim 1, wherein, The light source includes a laser light source.

3. The building component according to claim 1 or 2, wherein the optical transmission component comprises an optical fiber.

4. The building component according to claim 1 or 2, wherein, The optical transmission component includes a reflector.

5. The building component according to claim 1 or 2, wherein, The third function includes the function of converting the incident light into illumination light having light distribution characteristics different from those of the incident light.

6. The building component according to claim 3, wherein, The third function includes the function of converting the incident light into illumination light having light distribution characteristics different from those of the incident light.

7. The building component according to claim 4, wherein, The third function includes the function of converting the incident light into illumination light having light distribution characteristics different from those of the incident light.

8. The building component according to claim 1 or 2, wherein, The third function includes the ability to convert the incident light into illumination light having a wavelength different from that of the incident light.

9. The building component according to claim 3, wherein, The third function includes the ability to convert the incident light into illumination light having a wavelength different from that of the incident light.

10. The building component according to claim 4, wherein, The third function includes the ability to convert the incident light into illumination light having a wavelength different from that of the incident light.

11. The building component according to claim 5, wherein, The third function includes the ability to convert the incident light into illumination light having a wavelength different from that of the incident light.

12. The building component according to claim 6, wherein, The third function includes the ability to convert the incident light into illumination light having a wavelength different from that of the incident light.

13. The building component according to claim 7, wherein, The third function includes the ability to convert the incident light into illumination light having a wavelength different from that of the incident light.

14. A light illumination system, comprising: Building components according to any one of claims 1 to 13; as well as Optical transmission components.

15. A lighting system comprising: The light irradiation system according to claim 14; as well as light source.

16. The lighting system according to claim 15, wherein, The building components include multiple building components, and The lighting system is configured to allow light emitted from a single light source to strike the multiple building components.

17. The lighting system according to claim 16, wherein, The illumination light includes multiple illumination lights emitted from the plurality of building components and having different light distribution characteristics from each other.

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