JP6887122B2 - Lighting system - Google Patents

Description

The present invention relates to a lighting system.

Conventionally, an illumination system capable of reproducing illumination by sunlight is known (see, for example, Patent Document 1). In the lighting system described in Patent Document 1, the light diffusing member diffuses the light by making the user perceive that an infinite space exists on the other side of the light diffusing member which is a part of the lighting system. It gives the user the impression that the light is sunlight.

Special Table 2016-514340 Gazette

However, in the lighting system of Patent Document 1, it is necessary to increase the distance between the light emitting module and the light diffusing member so that the space on the other side of the light diffusing member is perceived as an infinite space. The larger the size of the entire system in the depth direction.

Therefore, an object of the present invention is to provide a lighting system capable of giving the impression that the emitted light is sunlight without increasing the distance between the light emitting module and the light diffusing member.

In order to achieve the above object, the lighting system according to one aspect of the present invention includes an internally illuminated first luminaire having an exit portion that emits a first illuminating light having a color imitating the sky, and a color imitating sunlight. A projection type second luminaire having a projection unit for projecting the second illuminating light onto an object, and the first luminaire and the second luminaire are arranged in the same space as the first luminaire. The fixture is located higher than the projection plane on which the second illumination light is projected onto the object.

According to the present invention, it is possible to provide a lighting system capable of giving the impression that the emitted light is sunlight without increasing the distance between the light emitting module and the light diffusing member.

FIG. 1 is a schematic diagram showing a schematic configuration of a lighting system according to an embodiment. FIG. 2 is a perspective view showing the first lighting fixture according to the embodiment. FIG. 3 is an exploded perspective view showing a part of the first luminaire according to the embodiment in an exploded manner. FIG. 4 is a perspective view showing a schematic configuration of the second luminaire according to the embodiment. FIG. 5 is a partial cross-sectional view schematically showing the internal structure of the fixture body of the second luminaire according to the embodiment. FIG. 6 is a ceiling plan showing the horizontal positional relationship of the light diffusing member, the lens, and the projection surface according to the embodiment. FIG. 7 is a schematic diagram showing a schematic configuration of the lighting system according to the first modification. FIG. 8 is a schematic diagram showing a schematic configuration of the lighting system according to the second modification. FIG. 9 is a schematic diagram showing a schematic configuration of the lighting system according to the third modification. FIG. 10 is a schematic diagram showing a schematic configuration of the lighting system according to the modified example 4.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement positions of the components, connection forms, etc. shown in the following embodiments are examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present invention will be described as arbitrary components.

It should be noted that each figure is a schematic view and is not necessarily exactly illustrated. Further, in each figure, the same reference numerals are given to substantially the same configurations, and duplicate description will be omitted or simplified.

[Lighting system]
Hereinafter, the lighting system 1 according to the embodiment of the present invention will be described.

FIG. 1 is a schematic diagram showing a schematic configuration of a lighting system 1 according to an embodiment. As shown in FIG. 1, the lighting system 1 includes an internally illuminated first lighting fixture 100 and a projection type second lighting fixture 200, and these are in the same space H forming a room of a building, for example. is set up. Here, the space H may be a space that is closed to some extent, and other than the room, a corridor, stairs, a bathroom, a kitchen, a toilet, an entrance, a hall, and the like can be mentioned. Since the lighting system 1 is a lighting system capable of reproducing sunlight in a simulated manner, it is preferably installed in a space H without a window, for example.

The space H is formed by a top surface h1, a floor surface h2, and a plurality of wall surfaces h3. In this embodiment, a case where the first luminaire 100 and the second luminaire 200 are arranged with respect to the top surface h1 will be illustrated.

[First lighting fixture]
Next, the first luminaire 100 will be described. FIG. 2 is a perspective view showing the first luminaire 100 according to the embodiment. FIG. 3 is an exploded perspective view showing a part of the first luminaire 100 according to the embodiment in an exploded manner.

As shown in FIGS. 2 and 3, the first luminaire 100 includes a housing 10, a light emitting module 20, a light reflecting member 30, a light diffusing member 40, a control unit 50, and a power supply unit 60. ..

The housing 10 is a box-shaped housing that houses the light emitting module 20, the light reflecting member 30, the light diffusing member 40, the control unit 50, and the power supply unit 60.

The housing 10 has an accommodating portion 11 and a frame portion 12.

The accommodating unit 11 is a box body that accommodates the light emitting module 20, the light reflecting member 30, the light diffusing member 40, the control unit 50, and the power supply unit 60. The control unit 50 and the power supply unit 60 may not be housed in the housing unit 11, and may be arranged outside the housing 10, for example. The accommodating portion 11 has an opening on the bottom surface on the floor surface h2 side, and the light diffusing member 40 is accommodated so as to cover the opening.

The frame portion 12 is a frame-shaped member having a substantially rectangular shape in a plan view, and is arranged at the edge of the bottom surface of the accommodating portion 11. The frame portion 12 covers and holds the light diffusing member 40 in a frame shape. As a result, the light diffusing member 40 is exposed from the opening of the frame portion 12. Further, the frame portion 12 is embedded in the ceiling so that the surface 121 of the frame portion 12 opposite to the accommodating portion 11 is flush with the top surface h1. As a result, the light diffusing member 40 is arranged on the back side of the surface 121 of the frame portion 12.

The light emitting module 20 is a light source for emitting the first illumination light having a color imitating the sky. As shown in FIG. 3, the light emitting module 20 is fixed to the end of the light reflecting member 30 on the opposite side of the light diffusing member 40. The light emitting module 20 is composed of a substrate 21 and a plurality of first light sources 22 mounted on the substrate 21.

The substrate 21 is a printed wiring board for mounting a plurality of first light sources 22, and is formed in a substantially rectangular shape.

The first light source 22 is, for example, a light emitting element such as an LED (Light Emitting Diode). In the present embodiment, the first light source 22 is an RGB type LED that emits red light, green light, and blue light. A plurality of the first light sources 22 are arranged on the floor surface side surface of the substrate 21. For example, the plurality of first light sources 22 are arranged in a matrix on the floor surface side surface of the substrate 21. The LED may be an SMD (Surface Mount Device) type LED or a COB (Chip On Board) type LED.

In the present embodiment, since the first light source 22 is an RGB type LED, various colors of light can be emitted by adjusting the brightness of blue light, green light, and red light.

The light reflecting member 30 is an optical member that is arranged so as to surround the plurality of first light sources 22 and has reflectivity with respect to the light emitted from the first light sources 22. That is, the light reflecting member 30 reflects the light emitted from the first light source 22 and incident on the light reflecting member 30. In the present embodiment, the light reflecting member 30 is a frame-shaped member surrounding the plurality of first light sources 22, and reflects light on the inner surface thereof.

The light reflecting member 30 is formed by subjecting a reflecting plate having a mirror surface, which is made of a metal material such as aluminum (AI), to a diffusion treatment. For example, the diffusion treatment is a matte treatment such as an alumite treatment. The diffusion treatment may be applied to at least the inner surface of the light reflecting member 30.

The light diffusing member 40 has translucency and light diffusing property for diffusing the light emitted from the light emitting module 20. For example, the light diffusing member 40 is produced by subjecting a transparent plate made of transparent acrylic, a resin material such as PET (Poly Ethylene Terephthalate), or glass to a diffusing process. The light diffusing member 40 is a plate material having a rectangular shape in a plan view. The light diffusing member 40 is fixed to the end of the light reflecting member 30 on the opposite side of the light emitting module 20. In other words, the light diffusing member 40 faces the light emitting module 20 and is arranged so as to cover the light emitting module 20. As a result, the light emitted from the light emitting module 20 and the light reflected by the light reflecting member 30 are diffused by the light diffusing member 40 and emitted to the outside. At this time, the light emitted from each of the first light sources 22 of the light emitting module 20 is diffused by the light diffusing member 40 and mixed without a grainy feeling. Thereby, for example, the first illumination light having a color imitating the sky such as a blue sky, a cloudy sky, or a sunset can be emitted from the light diffusing member 40 without a sense of discomfort. That is, the light diffusing member 40 is an exiting portion that emits the first illumination light having a color imitating the sky. The light diffusing member 40, which is the emitting portion, expresses a color imitating a pseudo sky over the entire surface. By observing the light diffusing member 40, the user has the impression that he / she is looking at the sky from there.

Since no other member is interposed between the light diffusing member 40 and the light emitting module 20, the light emitted from each first light source 22 of the light emitting module 20 passes through the wavelength conversion layer. Instead, it will be emitted from the light diffusing member 40.

The control unit 50 is a control device that controls operations such as lighting, extinguishing, dimming, and toning (adjustment of emission color or color temperature) of the light emitting module 20. For example, the control unit 50 acquires information about the display image stored in the storage unit (not shown), and the light emitting module 20 reproduces the display image according to the information. For example, when displaying the blue sky, the control unit 50 acquires information about the blue sky from the storage unit and controls the light emitting module 20 based on the acquired information. The control unit 50 and the light emitting module 20 (plurality of first light sources 22) are electrically connected by a signal line.

In the present embodiment, the first light source 22 is an RGB type LED. Therefore, the control unit 50 outputs a control signal including information on the brightness of each of the blue LED, the green LED, and the red LED to the first light source 22 via the signal line. The first light source 22 that has received the control signal emits blue, green, and red based on the control signal.

The control unit 50 is realized by a microcomputer, a processor, or a dedicated circuit. In the present embodiment, the control unit 50 is arranged on the surface of the light emitting module 20 opposite to the light diffusing member 40.

The power supply unit 60 is a power conversion circuit that converts AC power supplied from a power system such as a commercial power supply into DC power. The power supply unit 60 is composed of a power supply circuit that generates electric power for causing the plurality of first light sources 22 of the light emitting module 20 to emit light. For example, the power supply unit 60 converts AC power supplied from a commercial power source into DC power of a predetermined level by rectifying, smoothing, stepping down, etc., and supplies the DC power to the light emitting module 20. The power supply unit 60 is electrically connected to the power system by a power line or the like.

[Second lighting fixture]
Next, the second luminaire 200 will be described.

The second luminaire 200 is a luminaire that projects a second illuminating light having a color imitating the sunlight onto an object. Specifically, as shown in FIG. 1, the second luminaire 200 has a floor surface h2 and a wall surface h3 as objects among a plurality of surfaces forming the space H, and the objects have a color imitating sunlight. The projection surface F is formed by projecting the second illumination light L2. The projection surface F simulates the sun formed on the wall surface h3 by the sunlight transmitted through the window, assuming that the light diffusing member 40 of the first lighting fixture 100 is a window.

That is, the first luminaire 100 reproduces a pseudo sky, and the second luminaire 200 simulates the sunlight and the sun incident from the sky reproduced by the first luminaire 100.

The second luminaire 200 will be specifically described.

FIG. 4 is a perspective view showing a schematic configuration of the second luminaire 200 according to the embodiment. FIG. 5 is a partial cross-sectional view schematically showing the internal structure of the fixture main body 210 of the second lighting fixture 200 according to the embodiment.

As shown in FIG. 4, the second luminaire 200 is a spotlight and includes a tubular fixture body 210 and a pair of arms 220 that hold the fixture body 210. As shown in FIG. 1, the second lighting fixture 200 is installed on the ceiling so that the fixture main body 210 is exposed from the installation port h4 formed on the top surface h1.

As shown in FIG. 5, the instrument main body 210 includes a substrate 211, a second light source 212, a wavelength conversion layer 213, a lens 214, a mask 215, and a support member 216.

The substrate 211 is a substrate on which the second light source 212 is mounted, and has metal wiring for supplying electric power to the second light source 212.

The second light source 212 is, for example, a light emitting element such as an LED. In the present embodiment, the second light source 212 is, for example, a blue LED that emits blue light. The blue LED may be an SMD (Surface Mount Device) type LED or a COB (Chip On Board) type LED. As the second light source, a laser diode can be used in addition to the LED.

The wavelength conversion layer 213 is a sealing layer that seals the second light source 212. Specifically, the wavelength conversion layer 213 is made of a translucent resin material containing yellow phosphor particles as a wavelength conversion material. As the translucent resin material, for example, a silicone resin is used, but an epoxy resin, a urea resin, or the like may be used. Further, as the yellow phosphor particles, for example, yttrium aluminum garnet (YAG) -based phosphor particles are adopted.

With this configuration, a part of the blue light emitted by the second light source 212 is wavelength-converted to yellow light by the yellow phosphor particles contained in the wavelength conversion layer 213. Then, the blue light that has not been absorbed by the yellow phosphor particles and the yellow light that has been wavelength-converted by the yellow phosphor particles are diffused and mixed in the wavelength conversion layer 213. As a result, light of a color (white) imitating sunlight is emitted from the wavelength conversion layer 213.

The lens 214 is a lens 214 that controls the light distribution of the light emitted from the wavelength conversion layer 213. Specifically, the lens 214 is, for example, a biconvex lens, and is arranged at a position facing the wavelength conversion layer 213.

The mask 215 partially blocks the light transmitted through the lens 214 to form the second illumination light L2. Specifically, the mask 215 is a plate material formed of a light-shielding member, and an opening 215a is formed in the central portion thereof. The mask 215 is arranged at a position facing the lens 214, and a part of the lens 214 is exposed from the opening 215a. The light transmitted through the opening 215a becomes the second illumination light L2 and forms the projection surface F. That is, the plan view shape of the opening 215a determines the shape of the projection surface F. The lens 214 exposed from the opening 215a of the mask 215 is a projection unit that projects the second illumination light L2 having a color imitating the sunlight onto the object.

The support member 216 is, for example, a metal housing, and houses a substrate 211, a second light source 212, a wavelength conversion layer 213, a lens 214, and a mask 215. The support member 216 is a member that forms the appearance of the instrument main body 210, and is supported by a pair of arms 220 as shown in FIG.

The pair of arms 220 can rotate in the horizontal direction in the installation port h4 (see arrow Y1 in FIG. 4). Further, the pair of arms 220 rotatably support the instrument main body 210 in the vertical direction (see arrow Y2 in FIG. 4). By combining the horizontal rotation of the pair of arms 220 and the vertical rotation of the instrument body 210, the posture of the instrument body 210 can be adjusted. Thereby, the position of the projection surface F can also be adjusted.

In the present embodiment, the posture of the instrument main body 210 is manually adjusted. Therefore, when the second lighting fixture 200 is installed at the installation port h4, the operator adjusts the posture of the fixture main body 210 so that the projection surface F is formed at a desired position. Here, the desired position is a position where it is estimated that the sun will appear when the light diffusing member 40 of the first lighting fixture 100 is assumed to be a window and sunlight is incident from the window.

If the second lighting fixture 200 is provided with a drive source for adjusting the posture of the second lighting fixture 200, the posture of the fixture main body 210 can be automatically adjusted.

The second luminaire 200 includes a control unit and a power supply unit, although not shown.

The control unit is a control device that is electrically connected to the second light source 212 and controls the lighting, extinguishing, and the like of the second light source 212. The control unit is realized by a microcomputer, a processor, or a dedicated circuit.

The power supply unit is a power conversion circuit that converts AC power supplied from a power system such as a commercial power supply into DC power. The power supply unit is composed of a power supply circuit that generates electric power for causing the second light source 212 to emit light. The power supply unit converts, for example, AC power supplied from a commercial power source into DC power of a predetermined level by rectifying, smoothing, stepping down, etc., and supplies the DC power to the second light source 212. The power supply unit is electrically connected to the power system by a power line or the like.

[Conditions for second illumination light]
In the present embodiment, it is assumed that the brightness and the color temperature of the second illumination light are constant. Here, the second illuminating light has a combined visual effect with the first illuminating light emitted by the first luminaire 100 by satisfying the conditions including the luminance condition and the color temperature condition, and is the second illuminating light. You can give reality to the sunlight that you make.

The brightness condition is a condition in which the relationship between the actual sky and the sunlight is defined by the brightness. The specific luminance condition is that when the emitting portion (light diffusing member 40 of the first illuminating fixture 100) and the projection portion (lens 214 of the second illuminating fixture 200) are observed from the outside of the second illuminating light L2. The condition is that the emission unit has a higher brightness than the projection unit. In other words, when the exit portion is viewed from the outside of the second illumination light L2, the projection portion looks dark. That is, since the projection portion is inconspicuous from the outside of the second illumination light L2, when the user looks at the emission portion from the outside of the second illumination light L2, the sky reproduced by the emission portion is strongly given to the user. You can impress.

Further, when the brightness condition is observed from the inside of the second illumination light L2 to the exit portion (light diffusing member 40 of the first lighting fixture 100) and the projection portion (lens 214 of the second lighting fixture 200), the emission portion. May be a condition that the brightness is lower than that of the projection unit. In other words, when the exit portion is viewed from the inside of the second illumination light L2, the projection portion looks brighter. In other words, it is possible to impress the user with the sparkle when looking at the sun from the window.

It is sufficient that at least one of the above two luminance conditions is satisfied. When the two luminance conditions are satisfied, a more effective effect can be exhibited.

The color temperature condition is a condition in which the relationship between the actual sky and the sun is defined by the color temperature. The specific color temperature condition is a condition that the color temperature of the second illumination light L2 is lower than that of the first illumination light. For example, in the relationship between the actual blue sky and the sun, the color temperature of the blue sky is about 10000K to 12000K, and the color temperature of the sun is about 6000K to 6500K. Further, in the relationship between the actual evening sky and the sun, the color temperature of the evening sky is 3000 K to 3500, and the color temperature of the sun is about 2000 to 2700 K. As described above, in the relationship between the color temperature of the sky and the sun during the daytime, the color temperature of the sun is lower than that of the sky in any case. That is, as described above, if the color temperature condition is such that the color temperature of the second illumination light L2 is lower than that of the first illumination light, the pseudo sky and the sun are surely obtained, and the first illumination light and the second illumination are used. It can be reproduced with light L2.

[Positional relationship of each part]
Next, the positional relationship between the light diffusing member 40 of the first luminaire 100, the lens 214 of the second luminaire 200, and the projection surface F will be described.

As shown in FIG. 1, the light diffusing member 40 and the lens 214 are arranged at a position higher than the projection surface F by being arranged on the top surface h1. During the daytime, the sunlight is generally falling from above. That is, if the light diffusing member 40 is arranged at a position higher than the projection surface F, the actual positional relationship between the sun and the sun can be reproduced by the first luminaire 100 and the projection surface F.

Next, the positional relationship between the light diffusing member 40, the lens 214, and the projection surface F in the horizontal direction will be described. FIG. 6 is a ceiling plan showing the horizontal positional relationship between the light diffusing member 40, the lens 214, and the projection surface F according to the embodiment. That is, FIG. 6 illustrates the positional relationship of each part when the light diffusing member 40 is viewed in a plan view. In FIG. 6, for convenience, the projection surface F is shown with a thickness.

A shadow is formed on the projection surface F by the second illumination light L2 projected from the lens 214. Further, as described above, assuming that the light diffusing member 40 of the first luminaire 100 is a window, the projection surface F is formed at a position where it is estimated that the sun will appear when sunlight is incident from the window. To. Therefore, it is desired that the shadow formed on the projection surface F also be impressed as if it were a shadow formed by sunlight.

As shown in FIG. 6, it is a plane orthogonal to the plane when the light diffusing member 40 is viewed in a plane, and is from the reference plane S100 with the reference plane S100 including the normal line N at the center of the projection plane F as a boundary. Assuming that the left side in the figure is the first region R1 and the right side in the figure is the second region R2 with respect to the reference plane S100, the light diffusing member 40 and the lens 214 are both installed in the first region R1. In other words, when the light diffusing member 40 is viewed in a plan view, the light diffusing member 40 and the lens 214 are both arranged on the same side with the reference surface S100 as a boundary.

When the light diffusing member 40 and the lens 214 are arranged in the first region R1 in this way, when the light diffusing member 40 is assumed to be a window, the sunlight L10 incident from the window and the center S2 of the lens 214 The second illumination light L2 projected from the above travels in substantially the same direction. That is, the shadow formed on the projection surface F by the second illumination light L2 also extends in substantially the same direction as the shadow formed by the sunlight L10. As a result, the shadow formed on the projection surface F can be impressed as if it were a shadow formed by sunlight.

As a comparative example, a case where the light diffusing member 40 is installed in the second region R2 and the lens 214A is installed in the first region R1 will be illustrated. In this case, assuming that the light diffusing member 40 is a window, the traveling directions of the sunlight L10 incident from the window and the second illumination light L3 projected from the center of the lens 214A are significantly different. That is, the shadow formed on the projection surface F by the second illumination light L3 extends in a direction completely different from the shadow formed by the sunlight L10, which gives the user a sense of discomfort.

From these facts, when the light diffusing member 40 is viewed in a plan view, if the light diffusing member 40 and the lens 214 are arranged on the same side with the reference surface S100 as a boundary, a shadow formed on the projection surface F will be formed. , Can be impressed as if it were a shadow formed by sunlight. In particular, if the light diffusing member 40 and the lens 214 are arranged close to each other, the sunlight L10 and the second illumination light L2 can be brought close to each other in parallel, so that a more realistic shadow can be formed on the projection surface F. it can.

In the present embodiment, when the light diffusing member 40 is viewed in a plan view, the entire light diffusing member 40 and the lens 214 are arranged on the same side with the reference plane S100 as a boundary. Illustrated. However, the centers S1 and S2 of the light diffusing member 40 and the lens 214 may be arranged on the same side.

Further, in the present embodiment, the case where the projection surface F is formed on the wall surface h3 is illustrated. On the other hand, the projection surface F1 formed on the floor surface h2 is also a surface orthogonal to the plane when the light diffusing member 40 is viewed in a plane, and the surface including the normal line N at the center of the projection surface F1 is used as a reference surface. It may be S100.

[Effects, etc.]
As described above, according to the above embodiment, the lighting system 1 is an internally illuminated first luminaire 100 having an exit portion (light diffusing member 40) that emits first illuminating light having a color imitating the sky. A projection type second luminaire 200 having a projection unit (lens 214) for projecting a second illuminating light L2 having a color imitating sunlight onto an object (floor surface h2), and a first luminaire 100. And the second luminaire 200 are arranged in the same space H, and the first luminaire 100 is arranged at a position higher than the projection surface F projected by the second illuminating light L2 on the object.

According to this configuration, in addition to the first luminaire 100 that emits the first illuminating light of the color imitating the sky, the second luminaire 200 that projects the second illuminating light L2 of the color imitating the sunlight is provided. Therefore, the first luminaire 100 and the second luminaire 200 have a combined visual effect of the sky reproduced by the first luminaire 100 and the sun (projection surface F) reproduced by the second luminaire 200. It can be impressed that the emitted light (first illumination light and second illumination light L2) is sunlight. That is, even if the distance between the light emitting module 20 and the light diffusing member 40 in the first luminaire 100 is not increased, the light emitted by the first luminaire 100 and the second luminaire 200 (first illuminating light and second illuminating light). It can be impressed that L2) is sunlight.

Further, the color temperature of the second illumination light L2 is lower than that of the first illumination light.

According to this configuration, the pseudo sky and the sun can be reliably reproduced by the first illumination light and the second illumination light L2.

Further, when the emitting portion and the projection portion are observed from the outside of the second illumination light L2, the emitting portion has a higher brightness than the projection portion.

According to this configuration, the projection portion is inconspicuous from the outside of the second illumination light L2, so that when the user looks at the emission portion from the outside of the second illumination light L2, the sky reproduced by the emission portion. Can make a strong impression on the user.

Further, when the emission unit and the projection unit are observed from the inside of the second illumination light L2, the emission unit has a lower brightness than the projection unit. When the exit portion is viewed from the inside of the second illumination light L2, the projection portion looks brighter. In other words, it is possible to impress the user with the sparkle when looking at the sun from the window.

Further, the exiting portion and the projection portion are planes orthogonal to the plane when the emitting portion is viewed in a plane, and are on the same side with the reference plane S100 including the normal line N at the center of the projection plane F as a boundary. Have been placed.

According to this configuration, when the light diffusing member 40 is viewed in a plan view, the light diffusing member 40 and the lens 214 are arranged on the same side with the reference surface S100 as a boundary, so that a shadow formed on the projection surface F is formed. However, it can be impressed as if it were a shadow formed by sunlight.

Further, the first luminaire 100 and the second luminaire 200 are arranged on the same surface (top surface h1) among a plurality of surfaces forming the space H.

According to this configuration, since the first luminaire 100 and the second luminaire 200 are arranged on the same surface, the first luminaire 100 and the second luminaire 200 can be arranged closer to each other. .. As a result, when the light diffusing member 40 of the first luminaire 100 is assumed to be a window, the sunlight L10 incident from the window and the second illuminating light L2 can be brought close to each other in parallel, and a more realistic shadow can be produced. It can be formed on the projection surface F.

Further, the first luminaire 100 includes an LED as the first light source 22, and the light emitted from the first light source 22 is emitted from the exit portion without passing through the wavelength conversion layer, and the second luminaire 200 is The second light source 212 is provided with an LED or a laser diode, and the light emitted from the second light source 212 is emitted from the projection unit via the wavelength conversion layer 213.

According to this configuration, even in the lighting system 1 including the first luminaire 100 having no wavelength conversion layer and the second luminaire 200 having the wavelength conversion layer 213, the first luminaire 100 and the second luminaire It can be impressed that the light (first illumination light and second illumination light L2) emitted by the luminaire 200 is sunlight.

Further, the first luminaire 100 further includes a frame portion 12 for holding the emitting portion, and the emitting portion is arranged on the back side of the surface of the frame portion 12 on the space H side.

For example, when the light diffusing member 40, which is the emitting portion, is arranged flush with the top surface h1, the user may see the ceiling as a thin plate, which makes it difficult to reproduce a realistic sky. However, if the exit portion of the frame portion 12 is arranged on the back side of the surface on the space H side, a more realistic sky can be reproduced.

[Modification 1]
In the above embodiment, the case where the first luminaire 100 and the second luminaire 200 are arranged on the same surface (top surface h1) among a plurality of surfaces forming the space H is illustrated. In the first modification, a case where the first luminaire 100 and the second luminaire 200 are arranged on different surfaces among a plurality of surfaces forming the space H will be described. In the following description, the description may be omitted in the same parts as those in the above embodiment.

FIG. 7 is a schematic view showing a schematic configuration of the lighting system 1A according to the first modification. As shown in FIG. 7, the second luminaire 200 is installed on the top surface h1 as in the above embodiment, but the first luminaire 100 is installed on the wall surface h3. In this case, the first luminaire 100 can be impressed as a window for a wall. Then, the second luminaire 200 projects the projection surface F2 on the wall surface h3 different from the wall surface h3 on which the first luminaire 100 is installed. Here, at sunrise and sunset, sunlight becomes a ray in a substantially horizontal direction. In this case, if at least a part of the projection surface F2 is arranged at a position lower than the light diffusing member 40 of the first luminaire 100, the projection surface F2 can be used for the sun at sunrise or sunset. It can be reproduced. That is, in the positional relationship between the first luminaire 100 and the projection surface F2 in this case, it is assumed that the first luminaire 100 is arranged at a position higher than the projection surface F2.

In this way, since the first luminaire 100 and the second luminaire 200 are arranged on different surfaces (wall surface h3 and top surface h1) among the plurality of surfaces forming the space H, the degree of freedom in the installation layout is high. Can be enhanced.

[Modification 2]
Further, in the above embodiment, the case where the projection surface F is formed only on one surface (wall surface h3) among the plurality of surfaces forming the space H is illustrated. However, the projection plane may be continuously formed on a plurality of planes.

FIG. 8 is a schematic view showing a schematic configuration of the lighting system 1B according to the second modification. As shown in FIG. 8, the projection surface F3 formed by the second luminaire 200 of the lighting system 1B is continuously formed on the wall surface h3 and the floor surface h2. In order to form such a projection surface F3, the posture of the fixture main body 210 of the second lighting fixture 200 may be adjusted, or the shape and size of the opening 215a of the mask 215 may be adjusted.

As described above, if the projection planes F are continuously formed on the adjacent planes among the plurality of planes forming the space H, more various effect effects can be realized.

[Modification 3]
In the above embodiment, the case where the first luminaire 100 includes the housing 10 is illustrated, but the first luminaire may not include the housing. In this case, the constituent members of the first luminaire (light emitting module, light reflecting member, light diffusing member, control unit, power supply unit, etc.) are installed directly on the ceiling.

FIG. 9 is a schematic view showing a schematic configuration of the lighting system 1C according to the third embodiment. As shown in FIG. 9, since the first luminaire 100c of the lighting system 1C does not have a housing, the light diffusing member 40 is in the opening h11 formed in the top surface h1 and is more than the top surface h1. Is also located on the back side. That is, the exiting portion may be located in the opening h11 formed in one surface (top surface h1) of the plurality of surfaces forming the space H, and may be arranged on the back side of the one surface. ..

According to this configuration, even if there is no housing, the exit portion is not flush with the top surface h1 but is arranged behind the top surface h1, so that a more realistic sky can be reproduced. Can be done.

[Modification example 4]
In the above embodiment, the case where the first luminaire 100 and the second luminaire 200 are arranged at different positions is illustrated, but the first luminaire and the second luminaire are arranged at overlapping positions. May be good. That is, the projection portion of the second luminaire may be included inside the exit portion of the first luminaire.

FIG. 10 is a schematic view showing a schematic configuration of the lighting system 1D according to the modified example 4. As shown in FIG. 10, in the modified example 4, the entire fixture main body 210 of the second luminaire 200d is arranged inward from the light diffusing member 40d (emission portion) of the first luminaire 100d. The light emitting module 20d is formed with a through hole 29 through which the second illumination light L2 of the second illumination fixture 200d passes. When the second luminaire 200d is located outside the housing of the first luminaire 100d, a through hole through which the second illuminating light L2 passes may be formed in the housing.

In this way, when the projection unit of the second luminaire 200 is arranged inside the light diffusing member 40d of the first luminaire 100d, the brightness of the light diffusing member 40d is lower than that of the projection unit.

[Other embodiments]
Although the lighting system 1 according to the embodiment has been described above, the present invention is not limited to the above embodiment.

For example, in the above embodiment, the case where the brightness and the color temperature of the second illuminating light L2 are fixed is illustrated, but the second illuminating light L2 is also used in the second luminaire 200 as in the first luminaire 100. It is also possible to control the dimming and toning of the. In this case, the dimming and toning of the second illuminating light L2 may be controlled by the second luminaire 200 in conjunction with the dimming and toning of the first luminaire 100. When dimming and toning the second illumination light L2 with the second luminaire 200, if the second illumination light L2 satisfies the above-mentioned conditions (luminance condition, color temperature condition), it is pseudo. It is possible to express the clear sky and the sunlight without any discomfort. Further, the first luminaire 100 may be used for dimming and toning the first illuminating light so as to satisfy the above conditions.

Further, the second luminaire may be a luminaire other than the spotlight as long as it is a projection type. Examples of lighting fixtures other than spotlights include projector devices and short focus projector devices. The projector device includes a projector device for image projection and a projector device for lighting.

In addition, it is realized by subjecting various modifications to the above-described embodiment to those skilled in the art, or by arbitrarily combining the components and functions of the respective embodiments without departing from the spirit of the present invention. Also included in the present invention.

1,1A, 1B, 1C, 1D Lighting system 12 Frame part 22 First light source 40 Light diffusing member (exit part)
100, 100c, 100d 1st luminaire 121 Surface 200, 200d 2nd luminaire 212 2nd light source 213 Wavelength conversion layer 214 Lens (projection part)
F, F1, F2, F3 Projection plane H Space h1 Top plane (plane)
h11 opening h2 floor surface (surface)
h3 wall surface (face)
L2 Second illumination light N normal S100 reference plane

Claims (10)

An internally illuminated first luminaire that has an exit part that emits the first illuminating light in a color that imitates the sky.
A projection type second luminaire having a projection unit for projecting a second illuminating light of a color imitating the sunlight onto an object.
The first luminaire and the second luminaire are arranged in the same space.
The first luminaire is arranged at a position higher than the projection surface on which the second illuminating light is projected onto the object .
The second luminaire is the second luminaire because, when the first luminaire is assumed to be a window, the sunlight formed on the object by the sunlight passing through the window is simulated on the projection surface. A lighting system with a mask that forms the illumination light. The lighting system according to claim 1, wherein the second illumination light has a color temperature lower than that of the first illumination light. The lighting system according to claim 1 or 2, wherein when the emission unit and the projection unit are observed from the outside of the second illumination light, the emission unit has a higher brightness than the projection unit. The lighting system according to any one of claims 1 to 3, wherein when the emission unit and the projection unit are observed from the inside of the second illumination light, the emission unit has a lower brightness than the projection unit. The emitting portion and the projection portion are planes orthogonal to the plane when the emitting portion is viewed in a plane, and are arranged on the same side with a reference plane including a normal at the center of the projection plane as a boundary. The lighting system according to any one of claims 1 to 4. The lighting system according to any one of claims 1 to 5, wherein the first luminaire and the second luminaire are arranged on different surfaces among a plurality of surfaces forming the space. The lighting system according to any one of claims 1 to 5, wherein the first luminaire and the second luminaire are arranged on the same surface among a plurality of surfaces forming the space. The first luminaire includes an LED as a first light source, and the light emitted from the first light source is emitted from the exit portion without passing through the wavelength conversion layer.
The second luminaire includes an LED or a laser diode as a second light source, and the light emitted from the second light source is emitted from the projection unit via the wavelength conversion layer. The lighting system described in item 1. The emitting portion is any one of claims 1 to 8 which is inside an opening formed in one of the plurality of surfaces forming the space and is arranged on the back side of the one surface. The lighting system described in the section. The first luminaire further includes a frame portion for holding the exit portion.
The lighting system according to any one of claims 1 to 8, wherein the emitting portion is arranged on the back side of the surface of the frame portion on the space side.

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