Illumination system, illumination device, and illumination method

Abstract

To provide an illumination system capable of performing various illuminations for presentation in comparison with the prior arts.SOLUTION: An illumination system A1 comprises a first LED module, a second LED module, a drive device, a control device, and a support device 4. A first light source irradiates an irradiated surface S10 with first light in a plurality of colors. A second light source irradiates the irradiated surface S10 with second light in a plurality of colors. The drive device drives the first light source and the second light source. The control device controls the drive device to individually perform color control and light control on the first light and the second light. The support device 4 supports the first light source and the second light source. The support device 4 supports the first LED module and the second LED module in such a manner that a part of a first irradiation range irradiated with the first light and a part of a second irradiation range irradiated with the second light in the irradiated surface S10 are overlapped.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a lighting system, a lighting device, and a lighting method, and more particularly to a lighting system, a lighting device, and a lighting method for providing lighting for dramatic effects. [Background technology]

[0002] As a conventional example, the lighting device described in Patent Document 1 is exemplified. The lighting device described in Patent Document 1 (hereinafter referred to as the conventional example) is a lighting device for stage lighting called a horizon light. A horizon light is a lighting device used for lighting background walls of TV studios, stages, and the like.

[0003] The conventional example includes a first light source and a second light source, each of which emits white light. The light from the second light source is irradiated upward on the background wall surface, and the light distribution characteristic of the second light source (second light distribution characteristic) is relatively flat. On the other hand, the light from the first light source is irradiated downward on the background wall surface relative to the light from the second light source. Furthermore, the light distribution characteristic of the first light source (first light distribution characteristic) is such that an area with higher illuminance than the surroundings (so-called light pool) is formed.

[0004] Therefore, the overall light distribution characteristic in the conventional example is an extended light distribution characteristic in which a light pool is formed below the background wall surface, while the illuminance gradually decreases toward the top of the background wall surface. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-127380 A Summary of the Invention [Problem to be solved by the invention]

[0006] In recent years, lighting for special effects has come to be used in places other than TV studios and stages, and the need for lighting for special effects is on the rise. However, it has been difficult to provide lighting for a variety of special effects using only monochromatic (white) light as in the conventional example.

[0007] An object of the present disclosure is to provide a lighting system, a lighting device, and a lighting method that are capable of providing lighting for a wider variety of effects than conventional lighting systems. [Means for solving the problem]

[0008] An illumination system according to one aspect of the present disclosure includes a first light source, a second light source, a driving device, a control device, and a support device. The first light source irradiates a first light of multiple colors onto an irradiated surface. The second light source irradiates a second light of multiple colors onto the irradiated surface. The driving device drives the first light source and the second light source. The control device controls the driving device to adjust the color and brightness of the first light and the second light separately. The support device supports the first light source and the second light source. The support device controls the first light source and the second light source so that a part of a first irradiation range onto the irradiated surface onto which the first light is irradiated and a part of a second irradiation range onto which the second light is irradiated overlap. and a first peak region where the illuminance is maximum in the first irradiation range and a second peak region where the illuminance is maximum in the second irradiation range do not overlap. The first light source and the second light source are supported. An illumination system according to an aspect of the present disclosure includes a first light source, a second light source, a driving device, a control device, and a support device. The first light source irradiates a first light of a plurality of colors onto an irradiated surface. The second light source irradiates a second light of a plurality of colors onto the irradiated surface. The driving device drives the first light source and the second light source. The control device controls the driving device to adjust the color and brightness of the first light and the second light separately. The support device supports the first light source and the second light source. The support device supports the first light source and the second light source such that a part of a first irradiation range irradiated with the first light and a part of a second irradiation range irradiated with the second light overlap on the irradiated surface, and a first half-value region in which the illuminance in the first irradiation range is half or more of the maximum value does not overlap with a second half-value region in which the illuminance in the second irradiation range is half or more of the maximum value.

[0009] An illumination device according to one aspect of the present disclosure is used in an illumination system and includes a light source that irradiates a target surface with light of multiple colors, a light distribution control member that controls the distribution of the light, and a housing that holds the light source and the light distribution control member.

[0010] An illumination method according to one aspect of the present disclosure includes: irradiating an irradiated surface with first light of a plurality of colors from a first light source; irradiating the irradiated surface with second light of a plurality of colors from a second light source; and overlapping a part of a first irradiation area irradiated with the first light and a part of a second irradiation area irradiated with the second light on the irradiated surface. Furthermore, a first peak region in which the illuminance is maximum in the first irradiation range and a second peak region in which the illuminance is maximum in the second irradiation range do not overlap. An illumination method according to one aspect of the present disclosure includes irradiating an irradiated surface with first light of multiple colors from a first light source and irradiating the irradiated surface with second light of multiple colors from a second light source, such that on the irradiated surface, a portion of a first irradiation area onto which the first light is irradiated overlaps a portion of a second irradiation area onto which the second light is irradiated, and a first half-value area in which the illuminance in the first irradiation area is more than half of the maximum value and a second half-value area in which the illuminance in the second irradiation area is more than half of the maximum value do not overlap. Effect of the Invention

[0011] The lighting system, lighting device, and lighting method disclosed herein have the advantage of being able to provide lighting for a wider variety of effects than conventional lighting devices. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a side view showing a state in which a lighting system according to an embodiment of the present disclosure is in use. [Diagram 2] FIG. 2 is a circuit block diagram of the above lighting system. [Diagram 3] 3A and 3B are front and side views of a surface illuminated by the lighting system of the embodiment, respectively, and are diagrams showing the illuminance distribution on the surface illuminated by the lighting system of the embodiment. [Figure 4] FIG. 4 is a perspective view of a first lighting device in the lighting system. [Diagram 5] FIG. 5 is an exploded perspective view of a first lighting device in the lighting system. [Figure 6] FIG. 6 is a front view of a second lens unit in the above illumination system. [Figure 7] FIG. 7 is a chromaticity diagram for explaining the operation of the lighting system according to the above embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, a lighting system, a lighting device, and a lighting method according to an embodiment of the present disclosure will be described in detail with reference to the drawings. However, each figure described in the following embodiments is a schematic diagram, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. Note that the configuration described in the following embodiments is merely an example of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0014] (1) Overview The lighting system A1 according to the embodiment includes a first light source (first LED module C1), a second light source (second LED module C2), a driving device 2, a control device 3, and a support device 4 (see FIGS. 1 and 2).

[0015] The first LED module C1 irradiates a first light of multiple colors onto the irradiated surface S10 (see FIG. 1). The second LED module C2 irradiates a second light of multiple colors onto the irradiated surface S10. The driving device 2 drives the first LED module C1 and the second LED module C2. The control device 3 controls the driving device 2 to adjust the color and brightness of the first light and the second light separately. The support device 4 supports the first LED module C1 and the second LED module C2 (see FIG. 1).

[0016] The support device 4 supports the first LED module C1 and the second LED module C2 on the irradiated surface S10 so that a portion of the first irradiation area S11 onto which the first light is irradiated and a portion of the second irradiation area S12 onto which the second light is irradiated overlap (see FIG. 3B).

[0017] The lighting system A1 according to the embodiment is used for purposes of providing presentation lighting to an irradiated surface S10 such as the inner wall surface of a passenger car of a railway vehicle, the wall surface of a guest room of an accommodation facility, the wall surface of a corridor of a commercial facility, the wall surface of other places where the surface is likely to be seen by an unspecified number of people, or the ceiling surface of such places. The lighting provided by the lighting system A1 according to the embodiment is not simply indirect lighting, but lighting for presenting a comfortable space including the irradiated surface S10 by irradiating the irradiated surface S10 with first light and second light of multiple colors.

[0018] Here, the first light source (first LED module C1) and the second light source (second LED module C2) in the embodiment can respectively irradiate light of multiple colors, that is, light of multiple light source colors (first light and second light) onto the irradiated surface S10. For example, the first LED module C1 and the second LED module C2 each have multiple types of LEDs with different light source colors, and can emit light of multiple colors (first light and second light) by individually adjusting (dimming) the light amounts of the multiple types of LEDs.

[0019] Thus, the lighting system A1 according to the embodiment, with the above configuration, can perform lighting for a variety of effects compared to the conventional art by gradually changing the light color (light source color) and light amount on the irradiated surface S10 from the first light to the second light (or from the second light to the first light). Note that, although the lighting system A1 according to the embodiment illustrates a case where the irradiated surface S10, which is a wall surface, is illuminated obliquely from above, the present invention is not limited thereto, and for example, the irradiated surface S10, which is a wall surface, may be illuminated obliquely from below, or the irradiated surface may be a ceiling surface and illuminated from below.

[0020] Moreover, the lighting device according to the embodiment is a first lighting device B1 including a first LED module C1, and a second lighting device B2 including a second LED module C2 (see FIG. 1).

[0021] The first lighting device B1 includes a first LED module C1, a light distribution control member (first lens unit L1) that controls the distribution of the first light, and a housing 10A that holds the first LED module C1 and the first lens unit L1.

[0022] Similarly, the second lighting device B2 includes a second LED module C2, a light distribution control member (second lens unit L2) that controls the distribution of the second light, and a housing 10B that holds the second LED module C2 and the second lens unit L2.

[0023] Thus, the lighting devices according to the embodiment (first lighting device B1; second lighting device B2) are used in the lighting system A1 according to the embodiment, and can provide lighting for a variety of different effects as compared to the conventional lighting system.

[0024] Furthermore, in the illumination method according to the embodiment, the first LED module C1 irradiates the illuminated surface S10 with first light of multiple colors, and the second LED module C2 irradiates the illuminated surface S10 with second light of multiple colors. In the illumination method according to the embodiment, on the illuminated surface S10, a part of the first illumination range S11 irradiated with the first light and a part of the second illumination range S12 irradiated with the second light overlap with each other.

[0025] Thus, the lighting method according to the embodiment can provide lighting for a variety of different effects as compared to the conventional lighting method.

[0026] (2)Details As shown in Fig. 1, a lighting system A1 according to an embodiment (hereinafter, abbreviated as lighting system A1) includes a first lighting device B1, a second lighting device B2, and a support device 4 that supports the first lighting device B1 and the second lighting device B2. The first lighting device B1 includes a first LED module C1, and the second lighting device B2 includes a second LED module C2. The lighting system A1 further includes a drive device 2 that drives the first LED module C1 and the second LED module C2, and a control device 3 that controls the drive device 2 (see Fig. 2).

[0027] (2-1) Lighting equipment The first lighting device B1 and the second lighting device B2 have a common basic configuration. The first lighting device B1 includes two first LED modules C1, two first lens units L1, a housing 10A that houses the two first LED modules C1, and a plurality of light-shielding plates 11 (see Figs. 4 and 5). The second lighting device B2 includes two second LED modules C2, two second lens units L2, a housing 10B that houses the two second LED modules C2, and a plurality of light-shielding plates 11 (see Fig. 1).

[0028] Each of the two first LED modules C1 has two rectangular substrates 13 and a plurality of LEDs 12 (12 in the illustrated example) mounted on the surface of each substrate 13 (see FIG. 5). Similarly to the first LED module C1, each of the two second LED modules C2 has two rectangular substrates and 12 LEDs mounted on the surface of each substrate. However, the number of LEDs 12 mounted on one substrate 13 is not limited to 12. Each of the LEDs 12 is a surface-mounted (packaged) LED, but may be a COB (Chip on Board) LED.

[0029] Here, the first LED module C1 and the second LED module C2 each have three LEDs 12 of four colors. The combination of the four colors is preferably, for example, a combination of the three primary colors of light (red, green, and blue) and white, or a combination of purple, blue-green (cyan), amber, and light blue, or a combination of deep red, mint green, light blue, and amber. However, it is preferable that the combination of the four colors of the first LED module C1 and the combination of the four colors of the second LED module C2 are different from each other. Note that the first LED module C1 and the second LED module C2 may each have one to two or four or more LEDs 12 of three or less colors or five or more colors. The combination of the four colors may be a combination other than the above combination. It is preferable that the four color LEDs 12 are mounted so that the LEDs 12 of each color are arranged in a row in the same order along the longitudinal direction of the substrate 13.

[0030] The housings 10A and 10B are formed, for example, by aluminum die casting into a long box shape with an open front, although the housings 10A and 10B may be formed from a metal other than aluminum, a synthetic resin, or ceramics.

[0031] The two first LED modules C1 are housed in a row on the bottom of the housing 10A along the longitudinal direction of the housing 10A (see FIG. 5). The two second LED modules C2, like the first LED modules C1, are housed in a row on the bottom of the housing 10B along the longitudinal direction of the housing 10B.

[0032] The two first lens units L1 are attached to the housing 10A so as to cover the opening on the front surface of the housing 10A (see FIGS. 4 and 5). The first lens unit L1 has twelve lenses 14A, a support portion 15A that supports the twelve lenses 14A in a row, and a pair of light-shielding covers 16 (see FIGS. 4 and 5). The twelve lenses 14A are supported by the support portion 15A so as to be aligned in a row. The twelve lenses 14A and the support portion 15A are integrally formed from a synthetic resin material having translucency, such as polycarbonate resin or acrylic resin.

[0033] Each lens 14A is configured to diffuse light along the longitudinal direction of the first lens unit L1 and to collect light along the lateral direction of the first lens unit L1. The twelve lenses 14A face the twelve LEDs 12 mounted on the substrate 13 in a one-to-one relationship when the first lens unit L1 is attached to the housing 10A. In other words, each lens 14A collects and diffuses light emitted from one LED 12 facing it.

[0034] The structure of the second lens unit L2 is the same as that of the first lens unit L1 except that it does not have the light-shielding cover 16, so a detailed description thereof will be omitted (see FIG. 6).

[0035] (2-2) Support device The support device 4 has a base 40 and two pairs of mounting plates 41 (see FIG. 1). The base 40 is formed in a triangular prism shape from a metal material. The two pairs of mounting plates 41 are each formed in a rectangular shape from a metal plate. One end of each of the two pairs of mounting plates 41 in the longitudinal direction is fixed (screwed) to two bottom surfaces 400 of the base 40. The other end of each of the mounting plates 41 in the longitudinal direction protrudes from the base 40 parallel to the bottom surface 400 of the base 40 (see FIG. 1).

[0036] Both longitudinal ends of the housing 10A of the first lighting device B1 and the housing 10B of the second lighting device B2 are attached by screwing to the other ends of the two pairs of mounting plates 41. That is, the housing 10A and the housing 10B are fixed to the base 40 by the pair of mounting plates 41. However, the housing 10A and the housing 10B may be attached to the pair of mounting plates 41 so as to be rotatable around the axis of the housing 10A and the housing 10B.

[0037] The support device 4 is installed, for example, on a ceiling surface S40 of a building, by fixing the base 40 to a position close to a wall surface (irradiated surface S10) by an appropriate method such as screwing. However, the support device 4 is installed so that the first lighting device B1 and the second lighting device B2 attached to two pairs of mounting plates 41 face the wall surface (see FIG. 1).

[0038] (2-3) Driving device The driving device 2 includes a first lighting circuit 21 and a second lighting circuit 22 (see FIG. 2). The first lighting circuit 21 and the second lighting circuit 22 have a common circuit configuration. The first lighting circuit 21 and the second lighting circuit 22 each use power supplied from an external power source (for example, a commercial AC power source or a DC power source such as a storage battery) to supply a DC current to the first LED module C1 and the second LED module C2. The first lighting circuit 21 is configured to be able to adjust the magnitude (current value) of the DC current supplied to the four color LEDs 12 of the first LED module C1 individually for each color. For example, the first lighting circuit 21 has four constant current circuits corresponding to the four color LEDs 12, and is configured to supply a DC current from each constant current circuit to the LEDs 12 of each color. Similarly, the second lighting circuit 22 is configured to be able to adjust the magnitude (current value) of the DC current supplied to the four color LEDs 12 of the second LED module C2 individually for each color. For example, the second lighting circuit 22 has four constant current circuits corresponding to the LEDs 12 of four colors, and is configured to supply a direct current from each constant current circuit to the LEDs 12 of each color.

[0039] (2-4) Control device The control device 3 mainly includes a microcontroller having one or more processors and a memory. The control device 3 controls the first lighting circuit 21 and the second lighting circuit 22 individually so that the DC current (load current) output from the first lighting circuit 21 and the second lighting circuit 22 matches a target value for each color of LED 12 by causing the one or more processors to execute a program stored in the memory. The target value of the load current is set, for example, in the range from 0% to 100%, when the rated current of each LED 12 is 100%.

[0040] The control device 3 records a plurality of scene data for reproducing different scenes (illumination for production) in the memory. Each of the plurality of scene data is a combination of a target value of the load current for each of the four colors of the LEDs 12 in the first LED module C1 and a target value of the load current for each of the four colors of the LEDs 12 in the second LED module C2. That is, the control device 3 adjusts the target value of the load current for each of the four colors of the LEDs 12 to individually adjust the color and brightness of the first light emitted from the first LED module C1 and the second light emitted from the second LED module C2 to produce each scene. For example, the scene data is set to reproduce a scene (illumination for production) that imitates a natural environment such as a blue sky, a sky at dusk, or a sky before dawn. However, the scenes that imitate natural environments that can be reproduced by the scene data are not limited to the above blue sky, a sky at dusk, or a sky before dawn.

[0041] (2-5) Lighting system operation Next, the operation of the lighting system A1 will be described. The lighting system A1 performs stage illumination (scene reproduction) on an illuminated surface S10, such as the inner wall surface of a passenger car of a railway vehicle, the wall surface of a passageway in a commercial facility, or the wall surface of other places that are likely to be seen by an unspecified number of people.

[0042] The control device 3 selects one of the multiple scene data in response to an external instruction, and in accordance with the selected scene data, controls the drive device 2. The control device 3 may also control the drive device 2 by sequentially switching the selected one of the multiple scene data over time according to a predetermined schedule.

[0043] Here, Fig. 3A shows a part of the illuminated surface S10 illuminated by the lighting system A1, and Fig. 3B shows the illuminance distribution on the part of the illuminated surface S10. Note that the first lighting device B1 and the second lighting device B2 illuminate the illuminated surface S10 with light (first light and second light) obliquely downward from the ceiling surface S40 (see Fig. 1).

[0044] In Fig. 3B, "S11" indicates the irradiation range (first irradiation range) of the first light irradiated from the first lighting device B1 to the irradiated surface S10, and "S12" indicates the irradiation range (second irradiation range) of the second light irradiated from the second lighting device B2 to the irradiated surface S10. Furthermore, "S21" indicates the region (first peak region) where the illuminance of the first light is maximum on the irradiated surface S10, and "S22" indicates the region (second peak region) where the illuminance of the second light is maximum on the irradiated surface S10. Furthermore, "S31" indicates the region (first half-value region) where the illuminance is half or more of the maximum value in the first irradiation range S11, and "S32" indicates the region (second half-value region) where the illuminance is half or more of the maximum value in the second irradiation range S12.

[0045] In FIG. 3A, "Q11" indicates an area illuminated mainly with the first light color (a part of the first illumination area S11), and "Q12" indicates an area illuminated mainly with the second light color (a part of the second illumination area S12). And "Q13" indicates an area where the first light color and the second light color gradually mix to form a gradation (an area where the first illumination area S11 and the second illumination area S12 overlap). Here, the first lens unit L1 and the second lens unit L2 diffuse light along their respective longitudinal directions (horizontal directions) and collect light along their lateral directions (vertical directions). Therefore, the illumination system A1 can irradiate the first light and the second light relatively narrowly in the vertical direction and relatively wide in the horizontal direction in a state where the first illumination device B1 and the second illumination device B2 are installed near the illuminated surface S10.

[0046] Here, it is preferable that the support device 4 supports the first lighting device B1 and the second lighting device B2 so that a first peak region S21 where the illuminance is maximum in the first irradiation range S11 and a second peak region S22 where the illuminance is maximum in the second irradiation range S12 do not overlap. Alternatively, it is preferable that the support device 4 supports the first lighting device B1 and the second lighting device B2 so that a first half-value region S31 where the illuminance is half or more of the maximum value in the first irradiation range S11 and a second half-value region S32 where the illuminance is half or more of the maximum value in the second irradiation range S12 do not overlap.

[0047] Thus, in the lighting system A1, the support device 4 supports the first lighting device B1 and the second lighting device B2 so as to satisfy the above-mentioned conditions, so that the light color and light amount can be gradually changed from the first light to the second light (or from the second light to the first light) on the illuminated surface S10, thereby reproducing a scene that imitates a natural environment. As a result, the lighting system A1 can perform lighting for a variety of presentations compared to the conventional lighting system.

[0048] Incidentally, the first LED module C1 and the second LED module C2 each have three LEDs 12 of four different colors. The emission colors (light source colors) of these LEDs 12 have color differences (color differences) that can be visually judged as different colors. FIG. 7 shows an xy chromaticity diagram in which a so-called Mac Adam ellipse is displayed at 10 times magnification. The Mac Adam ellipse is an ellipse centered on a point that was created by American physicist Mac Adam in a color matching experiment on 25 points (colors) on the xy chromaticity diagram, and shows the range in which the color is indistinguishable from the point. In other words, the color of any chromaticity coordinate within the Mac Adam ellipse is usually recognized as the same color as the color of the chromaticity coordinate at the center of the Mac Adam ellipse. Therefore, the chromaticity coordinates of the colors of the LEDs 12 of the first LED module C1 and the second LED module C2 respectively satisfy the condition that they do not exist within the same Mac Adam ellipse. However, the index representing the color difference between the LEDs 12 is not limited to the MacAdam ellipse, and for example, the color difference represented by the CIE1976 L*a*b* color system may be used as the index.

[0049] (2-6)Lighting method In the illumination method according to the embodiment, a first light source irradiates a surface S10 to be illuminated with a first light of multiple colors, and a second light source irradiates the surface S10 to be illuminated with a second light of multiple colors, so that a part of a first illumination area S11 illuminated with the first light overlaps a part of a second illumination area S12 illuminated with the second light on the surface S10 (see FIG. 3B). The illumination method according to the embodiment can be implemented using the illumination system A1 described above. However, the illumination method according to the embodiment may be implemented without using the illumination system A1.

[0050] Thus, the lighting method according to the embodiment can provide lighting for a variety of different effects as compared to the conventional lighting method.

[0051] (3) Other advantages of the embodiment The lighting system A1 further includes a first light distribution control member (first lens unit L1) that controls the light distribution of the first light, and a second light distribution control member (second lens unit L2) that controls the light distribution of the second light. The first lens unit L1 and the second lens unit L2 are each configured to collect the first light and the second light along a direction (vertical direction) in which the first irradiation range S11 and the second irradiation range S12 overlap on the irradiated surface S10 (see FIG. 3B). Furthermore, the first lens unit L1 and the second lens unit L2 are each configured to diffuse the first light and the second light along a direction (horizontal direction) that intersects with the direction in which the first irradiation range S11 and the second irradiation range S12 overlap on the irradiated surface S10 (see FIG. 3A).

[0052] Thus, when the first lighting device B1 and the second lighting device B2 are installed near the illuminated surface S10, the lighting system A1 can irradiate the first light and the second light in a relatively narrow area in the vertical direction and a relatively wide area in the horizontal direction.

[0053] Furthermore, if the control device 3 controls the drive device 2 and adjusts the color of the first light and the color of the second light so that they change over time, the lighting system A1 can provide lighting for a wider variety of effects than ever before.

[0054] (4) Summary The lighting system (A1) according to the first aspect of the present disclosure includes a first light source (first LED module C1), a second light source (second LED module C2), a driving device (2), a control device (3), and a support device (4). The first light source irradiates a first light of multiple colors onto an irradiated surface (S10). The second light source irradiates a second light of multiple colors onto the irradiated surface (S10). The driving device (2) drives the first light source and the second light source. The control device (3) controls the driving device (2) to adjust the color and brightness of the first light and the second light separately. The support device (4) supports the first light source and the second light source. The support device (4) supports the first light source and the second light source on the irradiated surface (S10) so that a portion of a first irradiation range (S11) onto which the first light is irradiated and a portion of a second irradiation range (S12) onto which the second light is irradiated overlap with each other.

[0055] The lighting system (A1) according to the first aspect can gradually change the light color and light amount from the first light to the second light (or from the second light to the first light) on the illuminated surface (S10). As a result, the lighting system (A1) according to the first aspect can perform lighting for a variety of presentations compared to the conventional lighting system.

[0056] An illumination system (A1) according to a second aspect of the present disclosure can be realized by combining with the first aspect. In the illumination system (A1) according to the second aspect, it is preferable that the support device (4) supports the first light source and the second light source such that a first peak region (S21) where the illuminance is maximum in the first irradiation range (S11) and a second peak region (S22) where the illuminance is maximum in the second irradiation range (S12) do not overlap.

[0057] The lighting system (A1) according to the second aspect can provide lighting for a variety of different effects compared to conventional lighting systems.

[0058] An illumination system (A1) according to a third aspect of the present disclosure can be realized by combining with the first aspect. In the illumination system (A1) according to the third aspect, it is preferable that the support device (4) supports the first light source and the second light source such that a first half-value region (S31) in which the illuminance in the first irradiation range (S11) is half or more of the maximum value and a second half-value region (S32) in which the illuminance in the second irradiation range (S12) is half or more of the maximum value do not overlap.

[0059] The lighting system (A1) according to the third aspect can provide lighting for a variety of different effects compared to conventional lighting systems.

[0060] The lighting system (A1) according to the fourth aspect of the present disclosure can be realized by combining with any one of the first to third aspects. In the lighting system (A1) according to the fourth aspect, the first light source preferably has a plurality of light-emitting elements (LED12) having different light source colors. The second light source preferably has a plurality of light-emitting elements (LED12) having different light source colors.

[0061] The lighting system (A1) according to the fourth aspect has a first light source and a second light source each having a plurality of light-emitting elements (LEDs 12) with different light source colors, thereby enabling lighting for a wider variety of effects than conventional lighting systems.

[0062] An illumination system (A1) according to a fifth aspect of the present disclosure can be realized by combining with the fourth aspect. In the illumination system (A1) according to the fifth aspect, it is preferable that the light source color of at least some of the light emitting elements of the first light source is different from the light source color of the light emitting elements of the second light source.

[0063] The lighting system (A1) of the fifth aspect can provide lighting for a wider variety of effects than ever before by making the light source color of at least some of the multiple light-emitting elements of the first light source different from the light source color of the multiple light-emitting elements of the second light source.

[0064] An illumination system (A1) according to a sixth aspect of the present disclosure can be realized by combining with any one of the first to fifth aspects. It is preferable that the illumination system (A1) according to the sixth aspect further includes a first light distribution control member (first lens unit L1) that controls the light distribution of the first light, and a second light distribution control member (second lens unit L2) that controls the light distribution of the second light. It is preferable that the first light distribution control member and the second light distribution control member are configured to collect the first light and the second light along a direction in which the first irradiation range (S11) and the second irradiation range (S12) overlap on the irradiated surface (S10).

[0065] The lighting system (A1) according to the sixth aspect can irradiate the first light and the second light in a relatively narrow area in the vertical direction when the first light source and the second light source are installed near the illuminated surface (S10).

[0066] An illumination system (A1) according to a seventh aspect of the present disclosure can be realized by combining with the sixth aspect. In the illumination system (A1) according to the seventh aspect, the first light distribution control member and the second light distribution control member are preferably configured to diffuse the first light and the second light along a direction intersecting a direction in which the first illumination range (S11) and the second illumination range (S12) overlap on the irradiated surface (S10), respectively.

[0067] The lighting system (A1) according to the seventh aspect can irradiate the first light and the second light relatively widely in the horizontal direction when the first light source and the second light source are installed near the illuminated surface (S10).

[0068] An illumination system (A1) according to an eighth aspect of the present disclosure can be realized by combining with any one of the first to seventh aspects. In the illumination system (A1) according to the eighth aspect, it is preferable that the control device (3) controls the driving device (2) to adjust the color of the first light and the color of the second light so that they change over time.

[0069] The lighting system (A1) according to the eighth aspect can provide lighting for a wider variety of presentations than conventional lighting systems.

[0070] An illumination device (first illumination device B1; second illumination device B2) according to a ninth aspect of the present disclosure is used in the illumination system (A1) according to any one of the first to eighth aspects. The illumination device according to the ninth aspect includes a light source (first LED module C1; second LED module C2) that irradiates a target surface with light of multiple colors, a light distribution control member (first lens unit L1; second lens unit L2) that controls the light distribution, and a housing (10) that holds the light source and the light distribution control member.

[0071] The lighting device according to the ninth aspect can provide lighting for a variety of different effects as compared to conventional lighting devices.

[0072] A lighting method according to a tenth aspect of the present disclosure includes irradiating an irradiated surface (S10) with first light of multiple colors from a first light source, and irradiating the irradiated surface (S10) with second light of multiple colors from a second light source. In the lighting method according to the tenth aspect, a part of a first irradiation area (S11) irradiated with the first light and a part of a second irradiation area (S12) irradiated with the second light are overlapped on the irradiated surface (S10).

[0073] The lighting method according to the tenth aspect can provide lighting for a variety of different effects as compared to conventional methods. [Explanation of symbols]

[0074] A1 Lighting System B1 First lighting device (lighting device) B2 Second lighting device (lighting device) C1 First LED module (first light source) C2 Second LED module (second light source) L1: First lens unit (first light distribution control member) L2: Second lens unit (second light distribution control member) 2. Drive unit 3. Control device 4 Support device 12 LED (light emitting element) S10 Irradiated surface S11 First irradiation range S12 Second irradiation range S21 1st peak region S22 2nd peak region S31 First half-value region S32 Second half-value region

Claims

1. a first light source that irradiates a first light of a plurality of colors onto an irradiated surface; A second light source that irradiates the illuminated surface with second light of a plurality of colors; a driving device that drives the first light source and the second light source; a control device that controls the driving device to adjust the color and brightness of the first light and the second light, respectively; a support device that supports the first light source and the second light source; Equipped with the support device supports the first light source and the second light source such that, on the irradiated surface, a part of a first irradiation range to which the first light is irradiated and a part of a second irradiation range to which the second light is irradiated overlap, and a first peak region in which the illuminance is maximum in the first irradiation range and a second peak region in which the illuminance is maximum in the second irradiation range do not overlap. Lighting system.

2. A first light source that irradiates a first light of multiple colors onto an irradiated surface; A second light source that irradiates the illuminated surface with second light of a plurality of colors; a driving device that drives the first light source and the second light source; a control device that controls the driving device to adjust the color and brightness of the first light and the second light, respectively; a support device that supports the first light source and the second light source; Equipped with the support device supports the first light source and the second light source such that a part of a first irradiation range irradiated with the first light overlaps with a part of a second irradiation range irradiated with the second light on the irradiated surface, and a first half-value region in which the illuminance in the first irradiation range is half or more of the maximum value does not overlap with a second half-value region in which the illuminance in the second irradiation range is half or more of the maximum value. Lighting system.

3. The first light source has a plurality of light-emitting elements each having a different light source color, The second light source has a plurality of light-emitting elements having different light source colors.

3. A lighting system according to claim 1 or 2.

4. The light source color of at least some of the light-emitting elements of the first light source is different from the light source color of the light-emitting elements of the second light source.

4. The lighting system of claim 3.

5. A first light distribution control member that controls the distribution of the first light; a second light distribution control member that controls a light distribution of the second light; Further comprising: the first light distribution control member and the second light distribution control member are configured to collect the first light and the second light along a direction in which the first irradiation range and the second irradiation range overlap on the irradiated surface, A lighting system according to any one of claims 1 to 4.

6. The first light distribution control member and the second light distribution control member are configured to diffuse the first light and the second light, respectively, along a direction intersecting a direction in which the first irradiation range and the second irradiation range overlap on the irradiated surface.

6. The lighting system of claim 5.

7. The control device controls the drive device to adjust the color of the first light and the color of the second light so that they change over time. A lighting system according to any one of claims 1 to 6.

8. For use in the lighting system of any one of claims 1 to 7, A light source that irradiates a target surface with light of multiple colors; A light distribution control member for controlling the distribution of the light; a housing for holding the light source and the light distribution control member; Equipped with Lighting equipment.

9. A method for irradiating an irradiated surface with first light of multiple colors from a first light source, and irradiating the irradiated surface with second light of multiple colors from a second light source; On the irradiated surface, a part of a first irradiation area irradiated with the first light and a part of a second irradiation area irradiated with the second light are overlapped, and a first peak area in which the illuminance is maximum in the first irradiation area and a second peak area in which the illuminance is maximum in the second irradiation area are not overlapped. lighting method.

10. A first light source is irradiated onto an irradiated surface with a first light of a plurality of colors, and a second light source is irradiated onto the irradiated surface with a second light of a plurality of colors; On the irradiated surface, a part of a first irradiation area irradiated with the first light and a part of a second irradiation area irradiated with the second light are overlapped, and a first half-value area in which the illuminance is half or more of the maximum value in the first irradiation area and a second half-value area in which the illuminance is half or more of the maximum value in the second irradiation area are not overlapped. lighting method.

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