Luminaire

Abstract

To provide a luminaire capable of suppressing an increase of a setting area therein, and an increase of a cost required for an illumination installation of a space due to the increase of the setting area.SOLUTION: Each of luminaire 1, 1a, 1b, 1c, 1c1, 1d, 1e, and 1f is a luminaire that can irradiates one or more spot illumination light against an irradiation object, and comprises: a plurality of light sources 12; a control part 50 that controls an illumination light pattern of one or more spot illumination lights irradiated to an irradiation object by selectively controlling each of the plurality of light sources 12; and a plurality of optical bodies 30 that irradiate the irradiation object so that the spot illumination light of which a light emitted by each of the plurality of light sources 12 is arranged and controlled. Then, a focal distance in each of the plurality of optical bodies 30 is longer or shorter than a distance between the luminaire 1, 1a, 1b, 1c, 1c1, 1d, 1e, and 1f and the irradiation object.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a lighting device. [Background technology]

[0002] Conventionally, there has been known a lighting device capable of emitting spot lighting light for indoors, particularly for stores. This lighting device is generally optically designed to emit spot lighting light using an LED (Light-Emitting Diode) that emits lighting light with a narrow light distribution angle, a light reflecting mirror, and an optical lens.

[0003] For example, Patent Document 1 discloses a spotlight that includes a main body having an opening formed on one side, a lens covering the opening, a light source disposed within the main body, and a concave reflector that reflects light emitted from the light source and emits it from the opening. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-129805 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when the spotlight of Patent Document 1 is used to irradiate spot illumination light at multiple points on an object, multiple units must be installed, which poses problems such as an increase in installation area and an increase in costs due to the multiple spotlights.

[0006] Therefore, the present disclosure provides a lighting device that can suppress an increase in the installation area of ​​the lighting device and an increase in the cost required for illuminating the space due to the increase in the installation area. [Means for solving the problem]

[0007] An illumination device according to one aspect of the present disclosure is an illumination device capable of irradiating an illumination object with one or more spot illumination lights, and includes a plurality of light sources, a control unit that controls an illumination light pattern of the one or more spot illumination lights irradiated to the illumination object by selectively controlling each of the plurality of light sources, and a plurality of optical bodies that irradiate the spot illumination lights, which are obtained by controlling the distribution of light emitted by each of the plurality of light sources, onto the illumination object in a one-to-one correspondence, and a focal length of each of the plurality of optical bodies is longer or shorter than a distance between the illumination device and the illumination object. Effect of the Invention

[0008] According to the lighting device of the present disclosure, it is possible to suppress an increase in the installation area of ​​the lighting device and an increase in the cost required for illuminating a space due to the increase in the installation area.

[0009] Further advantages and effects of one aspect of the present disclosure will become apparent from the specification and drawings. Such advantages and / or effects are provided by some of the embodiments and features described in the specification and drawings, respectively, but not necessarily all of them are provided to obtain one or more identical features. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing an internal structure of an illumination device according to an embodiment and an illumination light pattern of spot illumination light irradiated onto an illumination object. [Diagram 2] FIG. 2 is a block diagram showing a lighting device according to an embodiment. [Diagram 3] FIG. 3 is a diagram showing an internal structure of the lighting device according to the embodiment and an illumination light pattern on an object to be illuminated, which is different from that shown in FIG. [Figure 4] FIG. 4 is a diagram showing an internal structure of the lighting device according to the embodiment and an illumination light pattern on an object to be illuminated, which is different from that shown in FIG. [Diagram 5]FIG. 5 is a diagram showing an internal structure of the lighting device according to the embodiment and an illumination light pattern on an object to be illuminated, which is different from that shown in FIG. [Figure 6A] FIG. 6A is a diagram showing a state in which the illumination device irradiates an object to be irradiated. [Figure 6B] FIG. 6B is a diagram showing how the space is illuminated. [Figure 6C] FIG. 6C is a diagram showing how a user sets the illumination mode of the illumination device for an illumination target using an external device. [Figure 7] FIG. 7 is a diagram showing a first irradiation region and a second irradiation region, and the illuminance of the first irradiation region and the illuminance of the second irradiation region. [Figure 8] FIG. 8 is a diagram showing a case where a spot illumination light is irradiated onto an irradiation object. [Figure 9] FIG. 9 is a diagram showing a case where a different spot illumination light is irradiated onto an irradiation object. [Figure 10] FIG. 10 is a diagram showing a case where the illumination object is illuminated with yet another spot illumination light. [Figure 11] FIG. 11 is a diagram showing an internal structure of an illumination device according to the first modification and an illumination light pattern of spot illumination light irradiated onto an illumination object. [Figure 12] FIG. 12 is a diagram showing an internal structure of an illumination device according to Modification 3 and an illumination light pattern on an illumination object different from that shown in FIG. [Figure 13] FIG. 13 is a perspective view showing an illumination device according to the fourth modification. [Figure 14] FIG. 14 is a perspective view showing the lighting device installed on a stand. [Figure 15] FIG. 15 is a cross-sectional view showing an internal structure of an illumination device according to the fourth modification. [Figure 16] FIG. 16 is a block diagram showing an illumination device according to the fourth modification. [Figure 17] FIG. 17 is a block diagram showing a lighting device when connected to an external power source by wire. [Figure 18] FIG. 18 is a block diagram showing a lighting device when wirelessly connected to an external power source. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiment will be specifically described with reference to the drawings.

[0012] The embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component arrangement and connection forms, steps, and order of steps shown in the following embodiments are merely examples and are not intended to limit the present disclosure. Furthermore, among the components in the following embodiments, components that are not described in the independent claims are described as optional components.

[0013] In addition, each drawing is a schematic diagram and is not necessarily a precise illustration. In addition, in each drawing, the same components are denoted by the same reference numerals.

[0014] (Embodiment) <Configuration> First, a lighting device 1 according to the present embodiment will be described with reference to FIGS.

[0015] Fig. 1 is a diagram showing an internal structure of a lighting device 1 according to an embodiment and an illumination light pattern of spot illumination light irradiated onto an illumination object Fig. 2 is a block diagram showing the lighting device 1 according to an embodiment.

[0016] As shown in FIG. 1 and FIG. 2, the lighting device 1 is, for example, a spotlight, a downlight, or a bracket light. The lighting device 1 can be attached to, for example, building materials such as an indoor ceiling, floor, and wall, or to a lighting rail, thereby illuminating the surrounding space in an indoor space such as a store or facility. Specifically, the lighting device 1 can irradiate one or more spot illumination lights to an irradiation object, and can illuminate the irradiation object by irradiating the spot illumination lights to the irradiation object. For example, the lighting device 1 can irradiate a plurality of spot illumination lights to a plurality of irradiation objects arranged in a space in one-to-one correspondence, illuminate the entire space, illuminate the entire specific wall surface in the space, or illuminate a part of the wall surface. This can create a performance that makes the irradiation object stand out.

[0017] The spotlight is a light that can highlight the outline of an object by intensively illuminating a part or the whole of the object. For example, the lighting device 1 can display contents (images) such as characters, pictures, figures, signs, patterns, etc., by illuminating the object with the spotlight.

[0018] The objects to be irradiated include, for example, building materials such as ceilings, floors and walls in facilities, exhibits in art galleries and museums, products displayed in stores, people and / or crowds moving through aisles or standing still in a space, etc.

[0019] Next, a specific configuration of the lighting device 1 will be described.

[0020] Specifically, the lighting device 1 includes a light emitting device 10, a control unit 50, a storage unit 51, a communication unit 52, a plurality of optical bodies 30, a wavelength converter 20, and a housing 40.

[0021] The light emitting device 10 has a plurality of light sources 12 that emit light forward, and a substrate 11 on which the plurality of light sources 12 are arranged. An electric wire is connected to the substrate 11 to supply power for causing the plurality of light sources 12 to emit light and / or a control signal for controlling the plurality of light sources 12.

[0022] The light sources 12 are, for example, light-emitting elements that emit blue light. Note that light-emitting elements that emit green light and / or red light may also be used. The light sources 12 are, for example, fine LEDs. The light sources 12 are, for example, arranged in a two-dimensional matrix. The light sources 12 are, for example, arranged regularly in a matrix (two-dimensional array) of M rows and N columns. M and N are natural numbers of 2 or more. M and N may be the same value or different values. That is, the arrangement intervals in the row direction and column direction of the light sources 12 may be the same or different. Also, the outer shape of the range in which the light sources 12 are arranged is rectangular in FIG. 2, but may be circular. Note that the light sources 12 can be in a form that emits light of the same color tone or in a form that emits light of different color tones.

[0023] The wavelength converter 20 includes a phosphor. The phosphor is, for example, a YAG (yttrium aluminum garnet) yellow phosphor, but is not limited thereto. The phosphor is arranged to face the multiple light sources 12. The phosphor is, for example, a phosphor that is excited by blue light to emit green light, yellow light, or red light. The wavelength converter 20 emits a mixture of, for example, blue light emitted by the multiple light sources 12 and passing through the yellow phosphor, and yellow light that has been wavelength-converted by the wavelength converter 20 while passing through the yellow phosphor, as white light.

[0024] In this embodiment, the light source 12 may include a light emitting element and a phosphor. In this case, the wavelength converter 20 may not be provided. In this case, in the multiple light sources 12, the phosphor may be disposed on the light emission side (front) of the light emitting element.

[0025] A control unit 50 that controls the light emission of each of the plurality of light sources 12 is electrically connected to the substrate 11. The control unit 50 outputs a control signal to the light emitting device 10 to independently control each of the plurality of light sources 12. For example, the control unit 50 turns on only one or more light sources 12 required to illuminate a predetermined area on an object to be irradiated, and turns off the remaining light sources 12 that do not illuminate the predetermined area. The control unit 50 can also individually control the turning on and off, light emission intensity, light emission time, and the like of each of the plurality of light sources 12. That is, the control unit 50 selectively controls each of the plurality of light sources 12 to control the illumination light pattern of one or more spot illumination lights irradiated on the object to be irradiated. Specifically, the control unit 50 controls the plurality of light sources 12 to change at least one or more of the light distribution characteristic, color tone, and intensity (brightness) of the spot illumination light.

[0026] For example, the control unit 50 may have a dimming function and a color adjustment function. In this case, the control unit 50 can adjust the dimming and color of the light to be irradiated to the irradiation object based on the control signal. For example, the lighting device 1 can irradiate the irradiation object with dynamic spot illumination light whose color tone changes over time or whose color tone changes periodically. For example, the control unit 50 controls the multiple light sources 12 so that the color tone of the spot illumination light emitted from the lighting device 1 gradually changes from light with a low color temperature to light with a high color temperature over time, or the color tone of the spot illumination light emitted from the lighting device 1 gradually changes from light with a high color temperature to light with a low color temperature.

[0027] Furthermore, the lighting device 1 individually controls the turning on and off of the multiple light sources 12. This allows the lighting device 1 to emit spot illumination light with brightness and darkness for each region of the illumination object, spot illumination light with an adjusted color, and spot illumination light with an adjusted shape. For example, when the spot illumination light is irradiated onto the illumination object, an image according to the brightness and darkness can be made to appear on the wall surface. The image may be a still image or a moving image.

[0028] In addition, the hook blade 60, which is supplied with power from an external commercial power source, may be electrically connected to the control unit 50. By connecting the hook blade 60 to the hook ceiling, power is supplied to the control unit 50 from the external commercial power source.

[0029] The control unit 50 is realized by, for example, an ASIC (Application Specific Integrated Circuit) and a microcontroller. The microcontroller includes, for example, a non-volatile memory in which a program is stored, a volatile memory which is a temporary storage area for executing the program, and a processor which executes the program. The program may be stored in the storage unit 51. The control unit 50 may be a dedicated processing circuit which performs processing.

[0030] The storage unit 51 stores information necessary for processing performed by the control unit 50, illumination data for controlling the illumination light pattern of the spot illumination light, and software for executing the illumination data. The storage unit 51 is, for example, a non-volatile storage medium such as an HDD (Hard Disk Drive) or a flash memory.

[0031] The communication unit 52 is a wireless communication interface or a wired communication interface capable of communicating with an external device. The communication unit 52 acquires control input data for controlling each of the multiple light sources 12 from the external device. For example, the communication unit 52 receives control input data transmitted from an external device operated by a user, and outputs the received control input data to the control unit 50. As a result, the control unit 50 controls each of the multiple light sources 12 according to the control input data acquired by the communication unit 52. Specifically, the control unit 50 acquires lighting data according to the control input data input from the communication unit 52 from the storage unit 51 using software stored in the storage unit 51. The control unit 50 can control the multiple light sources 12 by outputting a control signal based on the lighting data acquired on the software to the multiple light sources 12.

[0032] Each of the optical bodies 30 is a lens for adjusting the output direction of the light emitted from each of the light sources 12, the distribution of the spot illumination light from the light emitting device 10, the distance at which a desired illumination light pattern can be drawn, etc., and is particularly a fixed lens without a focal length adjustment function. The optical body 30 used in this embodiment is an aspheric lens, but is not limited to this. Each of the optical bodies 30 emits light forward by controlling the distribution of light emitted from each of the light sources 12 via the wavelength conversion body 20 so that an image based on the spot illumination light is displayed on the irradiation object. In other words, the light emitted from each of the light sources 12 becomes spot illumination light that is irradiated on the irradiation object via the wavelength conversion body 20 and the optical bodies 30. Each of the optical bodies 30 can irradiate the irradiation object with spot illumination light obtained by controlling the distribution of light emitted from each of the light sources 12 in a one-to-one correspondence. The optical axes of the spot illumination light corresponding to the light emitted from each of the light sources 12 are different from each other. The optical axis of the spot illumination light is parallel to the emission direction of the main spot illumination light emitted from the illumination device 1.

[0033] The number, shape, and outer diameter of the optical bodies 30 are appropriately determined depending on the functions required for the illumination device 1. In the present embodiment, the number of the optical bodies 30 is four, but the present invention is not limited to this. For example, the number of the optical bodies 30 may be two or three. It is preferable that the number of the optical bodies 30 is four or less. In this case, the optical system is simplified compared to a projector or the like that requires the use of five or more lenses to ensure focus. On the other hand, there is no problem in drawing a desired illumination light pattern on an irradiation surface or the like. Therefore, the illumination device 1 of the present embodiment can suppress the increase in size and the increase in cost.

[0034] The focal length of each of the optical bodies 30 is set to be longer or shorter than the distance between the lighting device 1 and the object to be irradiated. In other words, one optical system (the optical bodies 30) can convert the spot illumination light into an unfocused illumination light pattern at least at an illumination distance of 0.5 m or more and 10 m or less. The optical bodies 30 are arranged in the housing 40 so as to overlap along the optical axis of the light source 12, but the focal lengths of the optical bodies 30 are different from each other. Therefore, when the spot illumination light emitted by the lighting device 1 is irradiated to the object to be irradiated, the boundary of the image displayed on the object to be irradiated by the spot illumination light can be blurred. In this way, it is expected that the boundary of the image displayed on the object to be irradiated by the spot illumination light can be blurred by setting the illumination distance to 0.5 m or more and 10 m or less.

[0035] In this embodiment, the optical bodies 30 are arranged such that the outer diameter of the lens gradually increases with increasing distance from the light emitting device 10.

[0036] The housing 40 is a container that houses the light emitting device 10, the multiple optical bodies 30, and the control unit 50. The housing 40 is in the shape of a cylinder with a bottom, and one side is open. The multiple optical bodies 30 are arranged side by side on the opening side of the housing 40 so as to overlap along the optical axis of the light source 12 and cover the opening of the housing 40. The control unit 50 is accommodated in the bottom of the housing 40, and the light emitting device 10 is arranged in the housing 40 so as to be located between the control unit 50 and the multiple optical bodies 30.

[0037] <Irradiation mode> Next, with reference to Figs. 3 to 5, a description will be given of the illumination mode of spot illumination light that is irradiated onto an illumination object by the illumination device 1 of this embodiment.

[0038] Fig. 3 is a diagram showing an internal structure of the lighting device 1 according to the embodiment and an illumination light pattern on an object to be illuminated that is different from that shown in Fig. 1. Fig. 4 is a diagram showing an internal structure of the lighting device 1 according to the embodiment and an illumination light pattern on an object to be illuminated that is different from that shown in Fig. 3. Fig. 5 is a diagram showing an internal structure of the lighting device 1 according to the embodiment and an illumination light pattern on an object to be illuminated that is different from that shown in Fig. 4.

[0039] The lighting device 1 can control the illumination light pattern of the spot illumination light irradiated on the irradiation object. As shown in Fig. 1, the lighting device 1 can irradiate the irradiation object with two illumination light patterns in which the shape of the spot illumination light is circular. In other words, the lighting device 1 can display a plurality of illumination light patterns on the irradiation object.

[0040] 3, the lighting device 1 can also irradiate an illumination light pattern in which the spot illumination light has a circular shape and another illumination light pattern in which the spot illumination light has a rectangular shape onto an illumination object. In other words, the lighting device 1 can freely select and change the shape of the illumination light pattern, and can display illumination light patterns of different shapes on an illumination object.

[0041] 4, the illumination device 1 can also irradiate an illumination object with an illumination light pattern in which the spot illumination light has a circular shape and another illumination light pattern in which the spot illumination light has a large circular shape. In other words, the illumination device 1 can freely change the size of the illumination light pattern.

[0042] 5, the lighting device 1 can also irradiate an object with an illumination light pattern in which the shape of the spot illumination light is circular and another illumination light pattern in which the shape of the spot illumination light is circular and the irradiation position is changed. In other words, the lighting device 1 can freely change the position at which the spot illumination light is irradiated on the object.

[0043] In this way, by appropriately designing the multiple optical bodies 30, multiple spot illumination lights can be generated from the light emitted by each of the multiple light sources 12. In addition, in the illumination device 1, the control unit 50 can selectively control one or more light sources 12 from among the multiple light sources 12 to control the illumination light pattern of one or more spot illumination lights irradiated on the irradiation object. In other words, the control unit 50 controls to turn on only one or more light sources 12 required to illuminate a predetermined area on the irradiation object and to turn off the remaining light sources 12 that do not illuminate the predetermined area. For example, by turning on all light sources 12 included in a circular range of a predetermined size among the multiple light sources 12 arranged in a two-dimensional array, the spot illumination light that forms a circular illumination light pattern is irradiated on the irradiation object via the multiple optical bodies 30. By the control unit 50 selectively controlling one or more light sources 12 from among the multiple light sources 12, illumination light patterns of different shapes, different sizes, and different positions can be simultaneously formed on the irradiation object.

[0044] As described above, in the illumination device 1 of the present embodiment, as shown in FIG. 4, the size of the spot illumination light irradiated on the irradiation object can be changed. Therefore, as shown in FIG. 4 and the like, the area of ​​the spot illumination light when viewed from the front can be made smaller than the area of ​​the optical body 30 when viewed from the front. In this case, even if the area of ​​the irradiation object when viewed from the front is smaller than the area of ​​the optical body 30 when viewed from the front, the size of the spot illumination light can be adjusted to match the size of a small irradiation object. In addition, even for an irradiation object that is far from the illumination device 1, the size of the spot illumination light can be adjusted to match the size of the irradiation object.

[0045] Next, a case where an illumination light pattern of spot illumination light is displayed on an actual illumination object using the illumination device 1 of the present embodiment will be described with reference to Fig. 6A. Fig. 6A is a diagram showing an illumination mode of the illumination device 1 on the illumination object.

[0046] Fig. 6A shows a case where light is irradiated onto an irradiation object placed at a position 2 m away from the lighting device 1. In Fig. 6A, a white polystyrene board is used as an example of the irradiation object.

[0047] For example, as shown in (a) of FIG. 6A, the lighting device 1 can realize an illumination light pattern in which a large circular spot illumination light and a small circular spot illumination light are simultaneously irradiated onto a position of the object to be illuminated that avoids at least a position directly in front of the optical body 30.

[0048] 6A(b), the illumination device 1 can realize an illumination light pattern in which the circular spot illumination light moves to the right from the illumination light pattern state of FIG. 6A(a) while gradually increasing the size of the spot illumination light and the number of spot illumination lights increases while moving from the left to the right. In this way, the illumination device 1 can simultaneously display illumination light patterns of a plurality of spot illumination lights of different sizes on the illumination object.

[0049] Furthermore, as shown in FIG. 6A(c), the illumination device 1 can realize an illumination light pattern in which a single circular spot illumination light is displayed and the size of the spot illumination light is changed over time.

[0050] As shown in FIG. 6A(d), the illumination device 1 can realize an illumination light pattern in which one circular spot illumination light is displayed darker than in the case of FIG. 6A(c).

[0051] 6A(e), the lighting device 1 can realize a lattice-like or mesh-like illumination light pattern. In this way, the lighting device 1 can display an illumination light pattern of a complex shape on an object to be illuminated.

[0052] In addition, even if the distance between the lighting device 1 and the object to be irradiated is short as shown in (f) of Fig. 6A, the lighting device 1 can realize a lattice-like or mesh-like illumination light pattern on the object to be irradiated. If the distance between the lighting device 1 and the object to be irradiated is less than 0.5 m, the illumination light pattern is likely to disappear, making it difficult for the user to recognize the illumination light pattern. From the state of the illumination light pattern in (e) of Fig. 6A, the lattice-like or mesh-like illumination light pattern can be gradually made smaller or its irradiation position can be moved as shown in (f) of Fig. 6A.

[0053] 6A(g), the lighting device 1 can realize a square spotlight, a polygonal spotlight such as a hexagonal or pentagonal spotlight, and a star-shaped spotlight. Also, as shown in Fig. 6A(h), the lighting device 1 can realize spotlights such as emergency exit guide lights and passageway guide lights. In this way, the lighting device 1 can simultaneously display illumination light patterns of a plurality of spotlights with different shapes on an illumination target.

[0054] The spot illumination light shown in (a) to (h) of FIG. 6A is merely an example, and is not limited to this embodiment. Spot illumination light of other known shapes may also be realized.

[0055] As shown in (a) to (h) of FIG. 6A, the contour of the boundary part in the spot illumination light is blurred. This is because, as described above, the focal length of each of the plurality of optical bodies 30 is set to be different from the distance between the illumination device 1 and the illumination object. For example, in the plurality of spot illumination lights subjected to light distribution control by the plurality of optical bodies 30, the focus may be shifted in a range of 1 m to 3 m along the illumination direction from the optical body 30 arranged at the forefront among the plurality of optical bodies 30. In the illumination device 1 of the present embodiment, even if the contour of the boundary part in the illumination light pattern of the spot illumination light is blurred, the shape of the illumination light pattern can be displayed on the illumination object so that the shape of the illumination light pattern can be recognized.

[0056] Next, a case where an illumination light pattern of spot illumination light is displayed on an actual illumination target using the illumination device 1 of the present embodiment will be described with reference to Fig. 6B. Fig. 6B is a diagram showing how a space is illuminated.

[0057] 6B(a), for example, the lighting device 1 can simultaneously irradiate multiple spot lighting lights in different directions to simultaneously form lighting patterns at multiple locations on an object to be illuminated. In addition, the lighting device 1 can individually control the dimming, light distribution, position, color tone, etc., of the multiple lighting patterns.

[0058] 6B(b), for example, when the lighting device 1 irradiates an object with spot lighting light, lighting effects can be performed using lighting patterns for still images, moving images, etc. Furthermore, the control unit 50 can use the lighting data in the storage unit 51 to reproduce lighting patterns or set a schedule to reproduce a predetermined lighting pattern.

[0059] As shown in (c) of FIG. 6B, for example, when the lighting device 1 irradiates the irradiation object with spot illumination light, the shape of the illumination light pattern irradiated on the irradiation object can be appropriately changed. Furthermore, when the control unit 50 acquires information indicating the shape of the irradiation object, the control unit 50 can select one or more corresponding light sources 12 from among the multiple light sources 12 based on the information, and turn on the selected light sources 12. As a result, the lighting device 1 can irradiate the spot illumination light according to the shape of the irradiation object, thereby displaying a flexible illumination light pattern according to the shape of the irradiation object. As shown in (c) of FIG. 6B, flexible illumination can be performed according to the contour of a floor, which is an example of an irradiation object.

[0060] Next, a case where the illumination mode of the illumination device 1 is set will be described with reference to Fig. 6C. Fig. 6C is a diagram showing how the user sets the illumination mode of the illumination device 1 with respect to an illumination target using an external device.

[0061] A user can set the illumination mode by operating an external device while viewing the illumination light pattern illuminated on an illumination object by the illumination device 1. By setting the illumination mode, for example, the illumination device 1 can produce a spot-like illumination light pattern, a preset pattern, an illumination light pattern that draws a picture on an illumination object with spot illumination light in the same way as a picture drawn by a user on the screen of an external device, and the like.

[0062] Next, the illumination light pattern of the spot illumination light irradiated to the irradiation object will be described with reference to Fig. 7. Fig. 7 is a diagram showing a first irradiation area and a second irradiation area, and the illuminance of the first irradiation area and the illuminance of the second irradiation area. Specifically, Fig. 7(a) shows the first irradiation area and the second irradiation area included in the illumination light pattern when the spot illumination light having the irradiation mode as shown in Fig. 6A is irradiated to the irradiation object. Fig. 7(b) shows the illuminance of the first irradiation area and the illuminance of the second irradiation area in the case of Fig. 7(a).

[0063] As shown in (a) of FIG. 7, the illumination light pattern of the spot illumination light irradiated to the illumination object includes a first illumination region which is the center of the illumination light pattern, and a second illumination region surrounding the periphery of the first illumination region. As shown in (b) of FIG. 7, the illuminance of the illumination light pattern tends to decrease at a predetermined gradient at the boundary portion B. The first illumination region is an area having a higher illuminance than the second illumination region. The boundary portion B is an edge portion indicating a position at the outer periphery of the first illumination region where the illuminance is 50% of the sum of the maximum illuminance of the first illumination region and the minimum illuminance (background) of the second illumination region. Note that the boundary portion B is not limited to a position where the illuminance is 50% of the sum, and may be 40%, 30%, 20%, 10%, etc. In this case, the illumination light pattern drawn by the spot illumination light can be made to stand out.

[0064] In the plurality of spot illumination lights subjected to light distribution control by the plurality of optical bodies 30, a first illumination region and a second illumination region may be formed in a range of 0.7 m to 4 m along the illumination direction from the optical body 30 arranged at the forefront among the plurality of optical bodies 30. In this case, in the illumination device 1 of the embodiment, even if the outline of the boundary part in the illumination light pattern of the spot illumination light is blurred, the illumination light pattern can be displayed on the illumination object so that the shape of the illumination light pattern can be recognized.

[0065] In the plurality of spot illumination lights in which light distribution is controlled by the plurality of optical bodies 30, the effective distance at which the illumination light pattern can be recognized along the irradiation direction from the optical body 30 arranged at the forefront of the plurality of optical bodies 30 is set to be 0.5 m or more. In the plurality of spot illumination lights in which light distribution is controlled by the plurality of optical bodies 30, the effective distance at which the illumination light pattern can be recognized along the irradiation direction from the optical body 30 arranged at the forefront of the plurality of optical bodies 30 is set to be 10 m or less. If it is less than 0.5 m, the illumination object may be hidden by the illumination device 1 and may not be visible from the surroundings. If it is less than 0.5 m or exceeds 10 m, the illumination light pattern may disappear, and the user may not be able to recognize the boundary portion between the first illumination area and the second illumination area showing the illumination light pattern.

[0066] Although the lighting device 1 according to the present embodiment has been described above, the configuration of the lighting device 1 is not limited to the configuration described in the above embodiment. Therefore, modified examples of the configuration of the lighting device 1 will be described, focusing on the differences from the above embodiment.

[0067] <Brightness distribution> Next, with reference to FIGS. 8 to 10, a luminance distribution when the illumination device 1 of the present embodiment irradiates an illumination object with spot illumination light will be described.

[0068] FIG. 8 is a diagram showing a case where spot illumination light is irradiated onto an object to be irradiated. FIG. 8 shows the luminance distribution when the small circular spot illumination light on the left side in (a) of FIG. 6A is irradiated onto the object to be irradiated. FIG. 9 is a diagram showing a case where another spot illumination light is irradiated onto the object to be irradiated. FIG. 9 shows the luminance distribution when the circular spot illumination light in (c) of FIG. 6A is irradiated onto the object to be irradiated. FIG. 10 is a diagram showing a case where yet another spot illumination light is irradiated onto the object to be irradiated. FIG. 10 shows the luminance distribution when the circular spot illumination light in (d) of FIG. 6A is irradiated onto the object to be irradiated.

[0069] For example, the illuminance of the spot illumination light irradiated on the irradiation object may be as shown in Fig. 8 to Fig. 10. Specifically, when the illuminance of the spot illumination light irradiated on the irradiation object has an inverted V-shaped waveform as shown in Fig. 8, when the illuminance of the spot illumination light irradiated on the irradiation object has an inverted U-shaped waveform as shown in Fig. 9, the illuminance of the spot illumination light irradiated on the irradiation object may change gradually as shown in Fig. 10. In either case, a first illumination region and a second illumination region are formed in the illumination light pattern of the spot illumination light irradiated on the irradiation object, and the user can recognize the first illumination region and the second illumination region.

[0070] 8 to 10, the average illuminance of the first irradiation region is set to 1.1 to 100 times the average illuminance of the second irradiation region. Preferably, the average illuminance of the first irradiation region may be set to 2, 3, 5, or 10 to 100 times the average illuminance of the second irradiation region. The average gradient of the illuminance distribution in the boundary portion B is larger than the average gradient of the illuminance distribution in the center of the first irradiation region and the outer periphery of the second irradiation region.

[0071] <Variation 1> In this modification, the same components as those in the above embodiment are given the same reference numerals and the description thereof will be omitted as appropriate.

[0072] First, a lighting device 1a of this modified example will be described with reference to FIG.

[0073] FIG. 11 is a diagram showing an internal structure of an illumination device 1a according to the first modification and an illumination light pattern of spot illumination light irradiated onto an illumination object.

[0074] The illumination device 1a of this modification further includes a detection unit 71 in addition to the light emitting device 10, a control unit 50, a storage unit 51, a communication unit 52, a plurality of optical bodies 30, a wavelength converter 20, and a housing .

[0075] The detection unit 71 is a sensor that detects at least one of the shape, size, and color tone of an object to be illuminated with spot illumination light. The detection unit 71 is, for example, an object detection sensor, a color sensor, an image sensor, or the like.

[0076] The control unit 50 controls each of the plurality of light sources 12 based on the detection result detected by the detection unit 71. For example, the control unit 50 controls each of the plurality of light sources 12 so that the light source has a shape corresponding to the shape of the irradiation object based on the detection result detected by the detection unit 71. In this way, the control unit 50 controls each of the plurality of light sources 12 so that the light source has a shape similar to the shape of the irradiation object, so that the lighting device 1a can irradiate the irradiation object with spot illumination light so that the shape is similar to the shape of the irradiation object.

[0077] Furthermore, for example, the control unit 50 controls each of the plurality of light sources 12 so that the size of each light source 12 is approximately the same as the size of the irradiation object covering the irradiation object, based on the detection result detected by the detection unit 71. In this manner, the control unit 50 controls each of the plurality of light sources 12 so that the size of each light source 12 is approximately the same as the size of the irradiation object covering the irradiation object, so that the lighting device 1a can irradiate the irradiation object with spot illumination light so that the size of each light source 12 is approximately the same as the size of the irradiation object covering the irradiation object.

[0078] Furthermore, for example, the control unit 50 controls each of the multiple light sources 12 so that the color tone corresponds to the color tone of the irradiation object based on the detection result detected by the detection unit 71. Specifically, the control unit 50 controls the multiple light sources 12 so that white light is irradiated if the color tone of the irradiation object is black. In this way, the control unit 50 controls each of the multiple light sources 12 so as to highlight the color tone of the irradiation object, and the lighting device 1 can irradiate the irradiation object with spot illumination light so that the color tone can highlight the irradiation object.

[0079] In this modification, the lighting device 1a includes the detection unit 71, but the present invention is not limited to this. For example, the modification may be applied to a lighting system including the lighting device 1a having the light-emitting device 10, the control unit 50, the storage unit 51, the communication unit 52, the plurality of optical bodies 30, the wavelength converter 20, and the housing 40, and the detection unit 71.

[0080] <Variation 2> In this modification, the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate. Since this modification has the same components as those in the first modification, the description will be given with reference to FIG.

[0081] First, a lighting device 1a of this modified example will be described with reference to FIG.

[0082] The illumination device 1a of this modification further includes a detection unit 71 in addition to the light emitting device 10, a control unit 50, a storage unit 51, a communication unit 52, a plurality of optical bodies 30, a wavelength converter 20, and a housing .

[0083] The detection unit 71 is a sensor that detects at least one of the movement of an object to be irradiated with spot illumination light and the temperature of the object to be irradiated. The detection unit 71 is, for example, a motion sensor, a thermosensor, an image sensor, or the like.

[0084] The control unit 50 controls each of the multiple light sources 12 based on the detection result detected by the detection unit 71. For example, the control unit 50 controls each of the multiple light sources 12 based on the detection result detected by the detection unit 71 so as to follow the movement of the irradiation target object.

[0085] For example, the control unit 50 controls each of the multiple light sources 12 so that the shape of the irradiation object changes according to the movement of the irradiation object, or controls each of the multiple light sources 12 so that the shape of the irradiation object continues to be irradiated according to the movement of the irradiation object. When the control unit 50 specifies the trajectory of the moving irradiation object, which is the movement of the irradiation object, the lighting device 1a may continue to irradiate the irradiation object with light so as to follow the specified trajectory. In this way, the control unit 50 controls each of the multiple light sources 12 so as to follow the irradiation object, so that the lighting device 1a can irradiate the spot illumination light to the irradiation object or the surroundings of the moving irradiation object or the front in the moving direction according to the movement of the irradiation object.

[0086] For example, the control unit 50 controls each of the light sources 12 so as to change the color tone of the light irradiated onto the object to be irradiated according to the temperature of the object to be irradiated. Specifically, the control unit 50 controls the light sources 12 so that the object to be irradiated is irradiated with a reddish spot illumination light if the object to be irradiated is at or above a predetermined temperature, and controls the light sources 12 so that the object to be irradiated is irradiated with a bluish spot illumination light if the object to be irradiated is below a predetermined temperature. In this way, the control unit 50 controls each of the light sources 12 according to the temperature of the object to be irradiated, so that the lighting device 1a can irradiate the object to be irradiated with spot illumination light of a color according to the temperature of the object to be irradiated.

[0087] In addition, this modified example may also be applied to a lighting system including a lighting device 1a having a light emitting device 10, a control unit 50, a memory unit 51, a communication unit 52, a plurality of optical bodies 30, a wavelength conversion body 20 and a housing 40, and a detection unit 71.

[0088] <Modification 3> In this modification, the same components as those in the above embodiment are given the same reference numerals and the description thereof will be omitted as appropriate.

[0089] First, a lighting device 1b of this modified example will be described with reference to FIG.

[0090] FIG. 12 is a diagram showing an internal structure of an illumination device 1b according to Modification 3 and an illumination light pattern on an object to be illuminated that is different from that shown in FIG.

[0091] The illumination device 1b of this modification further includes an acquisition unit 72 in addition to the light emitting device 10, a control unit 50, a storage unit 51, a communication unit 52, a plurality of optical bodies 30, a wavelength converter 20, and a housing .

[0092] The acquisition unit 72 acquires at least one of the contents of season, calendar, time, weather, climate, temperature, and humidity. The acquisition unit 72 may be, for example, a data acquisition unit that acquires the season, calendar, time, weather, climate, temperature, and humidity from an external device, or may be a sensor such as a timing sensor, a temperature sensor, a weather sensor, and a humidity sensor.

[0093] The control unit 50 controls each of the multiple light sources 12 based on the contents acquired by the acquisition unit 72 .

[0094] For example, the control unit 50 controls each of the multiple light sources 12 according to the season. Specifically, when the season is spring, the control unit 50 controls the multiple light sources 12 so that a spring appearance is displayed on the irradiation object. When the season is summer, the control unit 50 controls the multiple light sources 12 so that a summer appearance is displayed on the irradiation object. When the season is autumn, the control unit 50 controls the multiple light sources 12 so that an autumn appearance is displayed on the irradiation object. When the season is winter, the control unit 50 controls the multiple light sources 12 so that a winter appearance is displayed on the irradiation object. As a result, the control unit 50 controls each of the multiple light sources 12 according to the season, and the lighting device 1b can irradiate the irradiation object with spot illumination light of characters, pictures, figures, patterns, and the like according to the season.

[0095] For example, the control unit 50 controls each of the plurality of light sources 12 according to a calendar. Specifically, the control unit 50 controls the plurality of light sources 12 so that a calendar showing the current month and day is displayed on the irradiation object. As a result, the control unit 50 controls each of the plurality of light sources 12 according to the calendar, and the lighting device 1b can irradiate the irradiation object with spot illumination light of characters, pictures, figures, patterns, etc. according to the calendar.

[0096] For example, the control unit 50 controls each of the multiple light sources 12 according to the time. Specifically, when the time is morning, the control unit 50 controls the multiple light sources 12 so that a morning scene is displayed on the irradiation object. When the time is daytime, the control unit 50 controls the multiple light sources 12 so that a daytime scene is displayed on the irradiation object. When the time is evening, the control unit 50 controls the multiple light sources 12 so that an evening scene is displayed on the irradiation object. When the time is night, the control unit 50 controls the multiple light sources 12 so that a night scene is displayed on the irradiation object. As a result, the control unit 50 controls each of the multiple light sources 12 according to the time, and the lighting device 1b can irradiate the irradiation object with spot illumination light of characters, pictures, figures, patterns, etc. according to the time. As shown in FIG. 12, the time itself can also be displayed on a clock.

[0097] For example, the control unit 50 controls each of the multiple light sources 12 according to the weather. Specifically, when the weather is sunny, the control unit 50 controls the multiple light sources 12 so that a sunny appearance is displayed on the irradiation object. When the weather is cloudy, the control unit 50 controls the multiple light sources 12 so that a cloudy appearance is displayed on the irradiation object. When the weather is rainy, the control unit 50 controls the multiple light sources 12 so that a rainy appearance is displayed on the irradiation object. When the weather is snowy, the control unit 50 controls the multiple light sources 12 so that a snowy appearance is displayed on the irradiation object. As a result, the control unit 50 controls each of the multiple light sources 12 according to the weather, and the lighting device 1b can irradiate the irradiation object with spot illumination light such as characters, pictures, figures, and patterns according to the weather.

[0098] For example, the control unit 50 controls each of the light sources 12 in accordance with the climate, such as weather, temperature, precipitation, and wind. Specifically, the control unit 50 controls the light sources 12 so that the current climate is displayed on the illumination target. As a result, the control unit 50 controls each of the light sources 12 in accordance with the climate, and the illumination device 1b can irradiate the illumination target with spot illumination light of characters, pictures, figures, patterns, and the like in accordance with the climate.

[0099] For example, the control unit 50 controls each of the light sources 12 in response to the temperature. Specifically, the control unit 50 controls the light sources 12 so that the current temperature is displayed on the object to be illuminated. As a result, the control unit 50 controls each of the light sources 12 in response to the temperature, and the lighting device 1b can illuminate the object to be illuminated with spot illumination light of characters, pictures, figures, patterns, etc. in response to the temperature.

[0100] For example, the control unit 50 controls each of the light sources 12 in accordance with the humidity. Specifically, the control unit 50 controls the light sources 12 so that the current humidity state is displayed on the object to be irradiated. As a result, the control unit 50 controls each of the light sources 12 in accordance with the humidity, so that the lighting device 1b can irradiate the object to be irradiated with spot illumination light of characters, pictures, figures, patterns, etc. in accordance with the humidity.

[0101] In this modification, the illumination device 1b includes the acquisition unit 72, but the present invention is not limited to this. For example, the modification may be applied to an illumination system including the illumination device 1b having the light-emitting device 10, the control unit 50, the storage unit 51, the communication unit 52, the plurality of optical bodies 30, the wavelength converter 20, and the housing 40, and the acquisition unit 72.

[0102] <Modification 4> In this modification, the same components as those in the above embodiment are given the same reference numerals and the description thereof will be omitted as appropriate.

[0103] First, illumination devices 1c, 1c1, 1d, 1e, and 1f of this modification will be described with reference to FIGS.

[0104] Fig. 13 is a perspective view showing a lighting device 1c of Modification 4. Fig. 14 is a perspective view showing a lighting device 1c1 installed on a stand 110. Fig. 15 is a cross-sectional view showing an internal structure of a lighting device 1d according to Modification 4. Fig. 16 is a block diagram showing a lighting device 1d according to Modification 4. Fig. 17 is a block diagram showing a lighting device 1e when connected to an external power source by wire. Fig. 18 is a block diagram showing a lighting device 1f when connected to an external power source wirelessly.

[0105] As shown in FIG. 13, the lighting device 1c may have a grip 41 so that the user can easily carry it. The housing 40 is cylindrical, and the grip 41 is integrally connected to the outer circumferential surface of the housing 40 that houses the multiple light sources 12, the control unit, and the multiple optical bodies 30. Integral connection means that the housing 40 and the grip 41 cannot be separated without being destroyed. In this embodiment, the grip 41 has a U-shaped, D-shaped, or C-shaped grip, for example, and can be easily held by the user. Note that the shape of the grip 41 is not limited to a U-shaped, D-shaped, or C-shaped grip, and may be another known shape, as long as the user can hold the grip 41.

[0106] 14, the lighting device 1c1 may have a stand 110 for placing the lighting device 1c1 in a predetermined position. The stand 110 is connected to the housing 40. That is, the housing 40 may have a connecting portion for attaching the lighting device 1c1 to the stand 110. The connecting portion is connected to the stand 110, whereby the lighting device 1c1 is fixed to the stand 110. In addition, the stand 110 may allow rotation including panning and tilting so as to change the position of the housing 40.

[0107] Specifically, the stand 110 has a leg 111, a support 112, and a pivot connection 113. The leg 111 supports the support 112. The leg 111 is, for example, a tripod, a tetrapod, a plate-shaped base, or the like. The support 112 is supported by the leg 111 and extends in a vertical direction. The pivot connection 113 is connected to the support 112 so as to be pivotable in a circumferential direction with the longitudinal direction of the support 112 as a central axis. That is, the pivot connection 113 is pivotable in a pan direction (left-right direction) relative to the support 112. Since a pivot shaft 114 extending horizontally provided on the pivot connection 113 is pivotably connected to a connection part of the housing 40, the pivot connection 113 is capable of pivoting the housing 40 in a tilt direction (up-down direction). Therefore, the lighting device 1c1 connected to the stand 110 can rotate in the pan direction and the tilt direction. The rotation in the pan direction and the tilt direction provided on the stand 110 may be performed automatically or manually. When the rotation in the pan direction and the tilt direction is performed automatically, an actuator such as a motor that rotates in the pan direction and the tilt direction is mounted on the stand 110.

[0108] Such a stand 110 is required to have a certain level of strength in order to support the lighting device 1c1, and therefore the stand 110 may be made of a metal material or the like.

[0109] Furthermore, the lighting device 1c1 is detachable from the stand 110. When the lighting device 1c1 is attached to the pivot connection part 113 of the stand 110, the pivot connection part 113 pivots relative to the support part 112, thereby allowing the lighting device 1c1 to pivot in the pan direction, and the lighting device 1c1 pivots relative to the pivot connection part 113, thereby allowing the lighting device 1c1 to pivot in the tilt direction.

[0110] 15 and 16, the lighting device 1d may further include a battery 54 and a power supply unit 53 for supplying power to the multiple light sources 12. In this case, the battery 54 and the power supply unit 53 may also be housed in the housing 40.

[0111] The power supply unit 53 can convert power from an external power supply into DC power of a predetermined level and supply the converted DC power to each light source 12. When the external power supply is a commercial power supply, the power supply unit 53 can convert the AC power from the external power supply into DC power of a predetermined level by rectifying, smoothing, stepping down, etc., and supply the converted DC power to each light source 12.

[0112] Furthermore, the power supply unit 53 can supply power from the battery 54 to the multiple light sources 12. When the external power supply is a commercial power supply, the power supply unit 53 can charge the battery 54 by converting AC power from the external power supply into DC power of a predetermined level by rectifying, smoothing, stepping down, etc., and supplying the DC power to the battery 54. Furthermore, the power supply unit 53 can convert DC power from the battery 54 into DC power of a predetermined level and supply the converted DC power to each light source 12.

[0113] The battery 54 may be a primary battery or a secondary battery. When the battery 54 is a secondary battery, the stand 110 may have a function capable of charging the battery 54 of the lighting device 1d.

[0114] Even if the battery 54 of the lighting device 1d runs out of power, the lighting device 1d can be turned on by replacing the battery 54. For this reason, the lighting device 1d cannot be connected to a power supply cable, that is, it does not need to be connected to an external power source by a power supply cable.

[0115] For example, as shown in Fig. 17, the lighting device 1e may be powered by a wired connection. Specifically, the lighting device 1e may be powered by being connected to an external power source such as a commercial power source via a power supply cable.

[0116] In this case, the lighting device 1e may further include a power supply connector 55 in addition to the battery 54 and the power supply unit 53. The power supply connector 55 is a connector for supplying power to the power supply unit 53, and is provided in the housing 40. The power supply connector 55 may be connected to a power supply cable, and outputs power supplied from an external power source via the power supply cable to the power supply unit 53. In other words, the lighting device 1e is supplied with power from the external power source via the power supply cable.

[0117] The power supply cable is, for example, a USB cable, a power supply cable with an adapter, etc. The power supply connector 55 is, for example, a USB terminal, a DC plug, etc.

[0118] The external power source may be another lighting device having a battery 54. The other lighting device may have a similar configuration to the lighting device 1e. In this case, the power supply connector 55 of the lighting device 1e may be connected to a connector of the other lighting device via a power supply cable, or may be directly connected to a connector of the other lighting device. In this case, the lighting device 1e may be capable of being charged by the other lighting device, or may cause the other lighting device to be charged.

[0119] For example, as shown in FIG. 18, the lighting device 1f may be supplied with power by wireless connection (non-contact power supply). Specifically, the lighting device 1f may further include a power receiving unit 56 capable of receiving power from a power transmitting unit 57 in a non-contact manner, in addition to a battery 54 and a power supply unit 53. The power transmitting unit 57 is composed of a power transmitting coil connected to an external power source. The power receiving unit 56 is provided in the housing 40 of the lighting device 1f and composed of a power receiving coil connected to the power supply unit 53. When the lighting device 1f is supplied with power, the lighting device 1f is placed near the power transmitting unit 57, so that the power receiving unit 56 is supplied with power from the power transmitting unit 57. The power receiving unit 56 outputs the power supplied from the external power source via the power transmitting unit 57 to the power supply unit 53. That is, the lighting device 1f is supplied with power from the external power source via the power receiving unit 56 and the power transmitting unit 57.

[0120] Furthermore, the lighting device 1f may also have a power supply connector 55. In this case, the power supply connector 55 of the lighting device 1f may be connected to a connector of another lighting device via a power supply cable, or may be directly connected to a connector of another lighting device. In this case, the lighting device 1f may be capable of being charged by the other lighting device, or may charge the other lighting device. The other lighting device may have a similar configuration to the lighting device 1f.

[0121] In the lighting devices 1e and 1f, an operation switch that enables a user to select whether to charge the lighting device 1e or 1f or another lighting device and to charge the selected lighting device may be provided on the housing 40. By operating the operation switch, the user can switch between charging the lighting devices 1e and 1f from the other lighting device and charging the other lighting device from the lighting devices 1e and 1f.

[0122] For example, the lighting devices 1e and 1f may act as master devices, and the power supply connector 55 may be connected to the connector of another lighting device to charge the other lighting device as a slave device. When a plurality of other lighting devices are connected to the lighting devices 1e and 1f, a lighting device that should be given priority for charging may be charged from among the plurality of other lighting devices. The lighting device that should be given priority for charging is a lighting device that is executing an illumination light pattern of spot illumination light and has a small charging capacity of the battery 54. The user can charge the lighting device that should be given priority by inputting a setting in advance via an external device.

[0123] For example, if there are two slave lighting devices 1e, 1f, and the two lighting devices 1e, 1f share their charge capacity with each other, such as in a peer-to-peer format, power may be supplied from the lighting device 1e, 1f executing a lighting light pattern with a lower importance to the lighting device 1e, 1f executing a lighting light pattern with a higher importance.

[0124] In either case of wired connection or wireless connection, the lighting devices 1e and 1f may not be equipped with the battery 54. In this case, the power supply unit 53 may convert AC power from an external power supply into DC power of a predetermined level by rectifying, smoothing, stepping down, etc., and supply the converted DC power to each light source 12.

[0125] In this modification, the battery 54 is mounted in the housing 40 of the lighting device 1d, 1e, 1f, but the present invention is not limited to this. For example, the battery 54 may be provided outside the lighting device 1d, 1e, 1f. In this case, the user may carry the battery 54 and the lighting device 1d, 1e, 1f while holding the lighting device 1d, 1e, 1f, while the lighting device 1d, 1e, 1f is carried on the user's shoulder or attached to the user's arm or torso.

[0126] Furthermore, the configurations of grip portion 41 and stand 110 in lighting devices 1c and 1c1 may be included in lighting devices 1d, 1e, and 1f.

[0127] <Action and effect> Next, the effects of the lighting devices 1, 1a, and 1b according to the present embodiment will be described.

[0128] As described above, the illumination devices 1, 1a, and 1b according to the technique 1 of the present embodiment are illumination devices capable of irradiating one or more spot illumination lights to an illumination object, and include a plurality of light sources 12, a control unit 50 that controls an illumination light pattern of one or more spot illumination lights irradiated to the illumination object by selectively controlling each of the plurality of light sources 12, and a plurality of optical bodies 30 that irradiate the illumination object with spot illumination lights in which light distribution control is performed on the light emitted from each of the plurality of light sources 12 in a one-to-one correspondence. The focal length of each of the plurality of optical bodies 30 is longer or shorter than the distance between the illumination devices 1, 1a, and 1b and the illumination object.

[0129] This allows one lighting device 1, 1a, 1b to simultaneously irradiate multiple objects with light or to irradiate light that changes over time. Since it is no longer necessary to install multiple lighting fixtures in a space to illuminate multiple objects as in the past, it is possible to suppress an increase in the number of lighting devices installed in a space.

[0130] Therefore, according to the lighting devices 1, 1a, and 1b of this embodiment, it is possible to suppress an increase in the installation area of ​​the lighting device and an increase in the cost of illuminating the space due to the increase in installation area, and it is expected that the number of lighting fixtures to be installed can be reduced, so that an illuminated space with excellent design can be realized without lining up a large number of lighting fixtures.

[0131] In particular, according to the illumination devices 1, 1a, and 1b of the present embodiment, when the focal length of each of the optical bodies 30 is longer than the distance between the illumination devices 1, 1a, and 1b and the object to be illuminated, it is possible to create spot illumination light that allows the contour of the spot illumination light to be blurred like illumination light from a general lighting fixture, but still allows the user to recognize the illumination light pattern of the spot illumination light that can display content, etc., while being closer to illumination light from a general lighting fixture than light that a projector illuminates an object to be illuminated so that the contour of the light is clearly separated.

[0132] Furthermore, when the focal length of each of the multiple optical bodies 30 is shorter than the distance between the lighting devices 1, 1a, 1b and the object to be illuminated, by using a fisheye lens or the like, as in a single-focus projector, it is possible to create spot lighting that blurs the contours in the lighting light pattern of the spot lighting light, like the lighting light of a general lighting fixture, while still allowing the lighting light pattern to be recognized.

[0133] In this way, the illumination devices 1, 1a, and 1b of the present embodiment can display the illumination light pattern of the spot illumination light in a recognizable manner like light emitted by a projector, while displaying the outlines in a blurred manner like general illumination light. As a result, there is no need to use an expensive device such as a projector, and an increase in the number of illumination devices 1, 1a, and 1b installed can be suppressed, thereby suppressing an increase in the cost required for the lighting equipment of the space.

[0134] Moreover, the control unit 50 controls the multiple light sources 12 arranged in a two-dimensional array, so that each of the multiple spot illumination lights can be controlled independently. This makes it possible to irradiate one or more spot illumination lights to a necessary location and to prevent spot illumination light from being irradiated to an unnecessary location. Therefore, in the illumination devices 1, 1a, and 1b of the present embodiment, it is possible to suppress an increase in power consumption and to improve usability.

[0135] Furthermore, according to the lighting devices 1, 1a, and 1b of the present embodiment, even when multiple spot illumination lights are irradiated onto multiple small objects such as dolls, ornaments, etc., which are the objects to be illuminated, the spot illumination lights adjusted to fit the size of each small object can be irradiated from a distance.

[0136] Furthermore, in the case of a lighting fixture using a conventional gobo filter, only a single lighting pattern can be emitted, and it is difficult to change the lighting pattern emitted to the object, and the light emitted by the light source 12 is blocked by the gobo filter, so power is wasted by the amount of light blocked. Therefore, it is possible to use a projector to emit lighting to the object, but a projector requires an air-cooling fan, which increases power consumption, makes embedding difficult, increases costs for maintenance and inspection due to dust accumulation, increases the size of the device, and generates noise.

[0137] However, it is possible to change the illumination light pattern irradiated on the illumination object, and to suppress an increase in the cost required for lighting equipment in the space.

[0138] Moreover, the illumination devices 1, 1a, and 1b according to Technique 2 of the present embodiment are the illumination devices 1, 1a, and 1b described in Technique 1. In this case, the focal lengths of the multiple optical bodies 30 are different from each other.

[0139] According to this, when a plurality of spot illumination lights emitted from the illumination devices 1, 1a, and 1b are irradiated onto an irradiation object, an illumination light pattern of the spot illumination lights with blurred contours can be displayed on the irradiation object.

[0140] Furthermore, the illumination devices 1, 1a, and 1b according to Technology 3 of the present embodiment are the illumination devices 1, 1a, and 1b according to Technology 1 or 2. In this case, the illumination light pattern of the spot illumination light irradiated onto the illumination object includes a first illumination region that is the center of the illumination light pattern, and a second illumination region that surrounds the periphery of the first illumination region. The average gradient of the illuminance distribution in the boundary portion B between the first illumination region and the second illumination region is larger than the average gradient of the illuminance distribution in the center of the first illumination region and the outer periphery of the second illumination region.

[0141] With this, like a projector, the first illumination area can display the illumination light pattern of the spot illumination light in a recognizable manner, and the second illumination area can blur the contours in the illumination light pattern of the spot illumination light, like general illumination light.

[0142] Moreover, the lighting devices 1, 1a, and 1b according to Technique 4 of the present embodiment are the lighting devices 1, 1a, and 1b described in Technique 3. In this case, the average illuminance of the first irradiation area is 1.1 to 100 times the average illuminance of the second irradiation area.

[0143] For example, when the average illuminance of the first illumination region is less than 1.1 times the average illuminance of the second illumination region, it may become impossible to recognize the contour of the illumination light pattern of the spot illumination light.

[0144] However, according to the present embodiment, the lighting devices 1, 1a, and 1b can display an illumination light pattern of spot illumination light in a recognizable manner like light emitted by a projector, while also displaying the outlines in a blurred manner like general illumination light.

[0145] Furthermore, the lighting devices 1, 1a, and 1b according to Technology 5 of the present embodiment are the lighting devices 1, 1a, and 1b described in any one of Technologies 1 to 4. In this case, in the plurality of spot illumination lights subjected to light distribution control by the plurality of optical bodies 30, the focus is shifted in a range of 1 m to 3 m along the irradiation direction from the optical body 30 arranged at the forefront among the plurality of optical bodies 30.

[0146] According to this, the illumination object can be illuminated so as to blur the contour of the spot illumination light within a range of 1 m or more and 3 m or less along the illumination direction from the optical body 30. In other words, the illumination light pattern of the spot illumination light irradiated on the illumination object can be recognized within a range of 1 m or more and 3 m or less. Within such a distance range, an illumination light pattern that is recognizable by the user can be presented on the illumination object. In particular, it is expected that the illumination device 1 of this embodiment can be used within a distance range that is mainly used for general illumination, store illumination, and street illumination.

[0147] Furthermore, the lighting devices 1, 1a, and 1b according to Technique 6 of the present embodiment are the lighting devices 1, 1a, and 1b described in Technique 3. In this case, in the plurality of spot illumination lights subjected to light distribution control by the plurality of optical bodies 30, a first illumination region and a second illumination region are formed within a range of 0.7 m to 4 m along the illumination direction from the optical body 30 arranged at the forefront among the plurality of optical bodies 30.

[0148] According to this, by forming the first irradiation area and the second irradiation area in a range of 0.7 m to 4 m from the optical body 30 along the irradiation direction, it is possible to illuminate the irradiation object so as to blur the contour of the spot illumination light. In other words, it is not necessary to irradiate multiple irradiation objects with focused illumination light. Therefore, it is not necessary to provide a focus adjustment function, and it is possible to suppress the increase in size of the illumination devices 1, 1a, and 1b and the increase in the complexity of the structure of the illumination devices 1, 1a, and 1b. In particular, it is expected to be used within a distance range that is used exclusively for general illumination, store illumination, and street illumination.

[0149] Furthermore, the lighting devices 1, 1a, and 1b according to Technology 7 of the present embodiment are the lighting devices 1, 1a, and 1b according to any one of Technologies 1 to 6. In this case, in a plurality of spot illumination lights whose light distribution is controlled by a plurality of optical bodies 30, the effective distance at which an illumination light pattern can be recognized along the irradiation direction from the optical body 30 arranged at the forefront among the plurality of optical bodies 30 is 0.5 m or more.

[0150] For example, when an object to be irradiated is placed at a position less than 0.5 m away from the illumination devices 1, 1a, and 1b, the object to be irradiated may be hidden by the illumination devices 1, 1a, and 1b. When the distance is less than 0.5 m, the illumination light pattern may disappear, making it difficult for the user to recognize the illumination light pattern. For this reason, it is expected that the illumination device 1 can recognize the object to be irradiated with the spot illumination light so that the object to be irradiated is not partially or entirely hidden. It is also expected that the illumination light pattern of the spot illumination light irradiated on the object to be irradiated is not disappeared so that the illumination light pattern is recognized by the user.

[0151] Furthermore, the lighting devices 1, 1a, and 1b according to technique 8 of the present embodiment are the lighting devices 1, 1a, and 1b described in any one of techniques 1 to 7. In this case, in a plurality of spot illumination lights whose light distribution is controlled by a plurality of optical bodies 30, the effective distance at which an illumination light pattern can be recognized along the irradiation direction from the optical body 30 arranged at the forefront among the plurality of optical bodies 30 is 10 m or less.

[0152] For example, when spot illumination light is applied to an illumination target located more than 10 m away from the illumination device, the contour of the illumination light pattern of the spot illumination light may become blurred.

[0153] However, according to the illumination devices 1, 1a, and 1b of the present embodiment, it is expected that the illumination light pattern of the spot illumination light can be recognized.

[0154] In addition, in this embodiment, since the spot illumination light is not irradiated to an illumination target located at a position exceeding 10 m, it is not necessary to use an optical design for realizing a narrower light distribution angle and a control mechanism for accurately irradiating the spot illumination light toward a predetermined position. Therefore, by suppressing the complication of the optical design and control mechanism in the illumination devices 1, 1a, and 1b, it is possible to suppress an increase in the manufacturing cost of the illumination devices 1, 1a, and 1b.

[0155] Moreover, the lighting devices 1, 1a, and 1b according to Technique 9 of the present embodiment are the lighting devices 1, 1a, and 1b described in any one of Techniques 1 to 8. In this case, the control unit 50 controls the multiple light sources 12 to change at least one of the light distribution characteristics, color tone, and intensity of the spot illumination light.

[0156] According to this, a plurality of spot illumination lights having different characteristics can be irradiated onto an irradiation object. Therefore, a plurality of irradiation objects having different characteristics can be irradiated with corresponding spot illumination lights. Since the irradiation object can be presented with the spot illumination lights, it is expected that the appearance of the irradiation object can be improved.

[0157] Moreover, the lighting device 1, 1a, 1b according to technology 10 of the present embodiment is the lighting device 1, 1a, 1b according to any one of technologies 1 to 9. In this case, the lighting device 1, 1a, 1b further includes a communication unit 52 capable of communicating with an external device. The communication unit 52 acquires control input data for controlling each of the plurality of light sources 12 from the external device. The control unit 50 controls each of the plurality of light sources 12 according to the control input data acquired by the communication unit 52.

[0158] According to this, since the lighting devices 1, 1a, and 1b can be controlled at a location away from the lighting devices 1, 1a, and 1b, the user can adjust the spot lighting while checking the lighting pattern of the illumination object illuminated by the spot lighting. In other words, the lighting devices 1, 1a, and 1b can irradiate the illumination object with spot lighting whose shape, position, size, color tone, intensity, etc. are dynamically changed so that the lighting devices 1, 1a, and 1b are linked with the user's operation on the external device. This improves the usability for the user.

[0159] Moreover, the lighting devices 1, 1a, and 1b according to technique 11 of the present embodiment are the lighting devices 1, 1a, and 1b according to any one of techniques 1 to 10. In this case, the lighting devices 1, 1a, and 1b further include a storage unit 51 that stores software for controlling the illumination light pattern of each of the multiple light sources 12. The control unit 50 controls each of the multiple light sources 12 using the software stored in the storage unit 51.

[0160] According to this, by installing software in an external device such as a smartphone or tablet terminal, it is possible to operate the lighting devices 1, 1a, and 1b using the external device.

[0161] In addition, since it will be easier to upgrade software versions, it is expected that the technology will become more widespread and will be easier for users to use.

[0162] The illumination device 1a according to the technology 12 of the present embodiment is the illumination device 1a according to any one of the technologies 1 to 11. In this case, the illumination device 1a further includes a detection unit 71 that detects at least one of the shape, size, and color tone of an illumination object illuminated with the spot illumination light. The control unit 50 controls each of the multiple light sources 12 based on the detection result detected by the detection unit 71.

[0163] According to this, since it is possible to irradiate the spot illumination light according to at least one of the shape, size, and color tone of the irradiation object, it is possible to irradiate the irradiation object with the spot illumination light in an illumination mode according to the irradiation object. Since the irradiation object can be presented by the spot illumination light, it is expected that the appearance of the irradiation object can be improved.

[0164] The illumination device 1a according to the technology 13 of the present embodiment is the illumination device 1a according to any one of the technologies 1 to 11. In this case, the illumination device 1a further includes a detection unit 71 that detects at least one of the movement of an object to be illuminated with the spot illumination light and the temperature of the object to be illuminated. The control unit 50 controls each of the light sources 12 based on the detection result detected by the detection unit 71.

[0165] According to this, since it is possible to irradiate the spot illumination light according to at least one of the movement of the irradiation object and the temperature of the irradiation object, it is possible to irradiate the irradiation object with the spot illumination light in an illumination mode according to the irradiation object. Since it is possible to present the irradiation object with the spot illumination light, it is expected that the appearance of the irradiation object can be improved.

[0166] Moreover, the lighting device 1b according to technique 14 of the present embodiment is the lighting device 1 according to any one of techniques 1 to 11. In this case, the lighting device 1b further includes an acquisition unit 72 that acquires at least one of the following: season, calendar, time, weather, climate, temperature, and humidity. Then, the control unit 50 controls each of the multiple light sources 12 based on the content acquired by the acquisition unit 72.

[0167] According to this, at least one of season, calendar, time, weather, climate, temperature, and humidity can be displayed on the illumination object by the illumination light pattern of the spot illumination light, so that the user can recognize the illumination light pattern displayed on the illumination object.

[0168] Moreover, the illumination device 1c according to technique 15 of the present embodiment is the illumination device 1c according to any one of techniques 1 to 14. In this case, the illumination device 1c includes a housing 40 that houses a plurality of light sources 12, a control unit 50, and a plurality of optical bodies 30, and a grip unit 41 connected to the housing 40.

[0169] According to this, when the lighting device 1c is turned on, the housing 40 may become hot. Even in this case, the user can hold the grip part 41 without feeling much heat, and therefore can carry the lighting device 1c while holding the grip part 41.

[0170] Moreover, the lighting device 1c1 according to technique 16 of the present embodiment is the lighting device 1c1 according to any one of techniques 1 to 15. In this case, the lighting device 1c1 includes a housing 40 that houses a plurality of light sources 12, a control unit 50, and a plurality of optical bodies 30, and a stand 110 for installing the housing 40.

[0171] According to this, by installing the lighting device 1c1 on the stand 110, the lighting device 1c1 can be maintained in a desired posture. Therefore, it is possible to suppress shaking of the posture of the lighting device 1c1 and suppress fluctuation of the illumination light pattern of the spot illumination light irradiated on the illumination target. Note that the lighting device 1c1 may be equipped with a structure of a camera stabilizer function and a vibration sensor in preparation for the case where the stand 110 has a weak structure. In this case, if the vibration detection result of the vibration sensor exceeds an allowable range, the control unit 50 may operate the camera stabilizer function. As a result, even if the lighting device 1c1 vibrates due to a person walking near the lighting device 1c1, it is possible to suppress the illumination blur of the lighting device 1c1 caused by the vibration.

[0172] Moreover, the lighting device 1d according to technique 17 of the present embodiment is the lighting device 1d according to any one of techniques 1 to 16. In this case, the lighting device 1d includes a battery 54 and a power supply unit 53 for supplying the power of the battery 54 to the multiple light sources 12. The battery 54 and the power supply unit 53 are housed in the housing 40.

[0173] According to this, even if the battery 54 of the lighting device 1d runs out of power, the lighting device 1d can be turned on simply by replacing the battery 54. Therefore, the lighting device 1d can be carried in a turned-on state without connecting the lighting device 1d to an external power source such as a commercial power source, thereby improving the convenience of the lighting device 1d.

[0174] Moreover, the lighting device 1e according to technique 18 of the present embodiment is the lighting device 1e according to any one of techniques 1 to 17. In this case, the lighting device 1e includes a power supply unit 53 for supplying power to the multiple light sources 12, and a power supply connector 55 for supplying power to the power supply unit 53, and the power supply connector 55 is supplied with power from an external power source.

[0175] According to this, when the external power source is a commercial power source, the lighting device 1e is powered from the external power source via the power feed connector 55, and can be turned on by power fed from the commercial power source. Also, when the external power source is another lighting device, the lighting device 1e is powered from the other lighting device via the power feed connector 55, and can be turned on by power fed from the commercial power source. The lighting device 1e is highly versatile because it is possible to select the external power source to feed power.

[0176] Moreover, the lighting device 1f according to technique 19 of the present embodiment is the lighting device 1f according to any one of techniques 1 to 18. In this case, the lighting device 1f includes a power receiving unit 56 capable of receiving power from a power transmitting unit 57 in a non-contact manner, and a power supply unit 53 for supplying the power received by the power receiving unit 56 to the multiple light sources 12.

[0177] According to this, simply by placing the lighting device 1f near the power receiving unit 56, power is supplied to the lighting device 1f, so that power can be easily supplied to the lighting device 1f.

[0178] (Other variations) Although the lighting device according to the present disclosure has been described based on the above-mentioned embodiments, the present disclosure is not limited to these embodiments. As long as the modifications do not deviate from the spirit of the present disclosure, modifications that a person skilled in the art may make to the embodiments may also be included in the scope of the present disclosure.

[0179] For example, in the lighting device of the present embodiment, a light source and a wavelength converter are exemplified, but the present invention is not limited to this. For example, the lighting device may not have a separate wavelength converter, as in the present embodiment. In this case, the light emitting device is composed of a plurality of light sources, a light emission control circuit, and the like. Each of the plurality of light sources may include a red LED chip, a blue LED chip, and a green LED chip. The light source may be realized by other light emitting elements, such as a semiconductor laser, an organic EL (Electro-Luminescence), or an inorganic EL.

[0180] Furthermore, the lighting device in the present embodiment is installed indoors, such as in a store or facility, but may also be applied to manned transport vehicles, such as ships, vehicles, and aircraft, or may be applied to outdoor lighting.

[0181] Moreover, the control unit included in the lighting device in the present embodiment is typically realized as an LSI, which is an integrated circuit. These may be individually implemented as single chips, or may be integrated in part or entirely into a single chip.

[0182] The integrated circuit is not limited to an LSI, but may be realized by a dedicated circuit or a general-purpose processor. A field programmable gate array (FPGA) that can be programmed after the LSI is manufactured, or a reconfigurable processor that can reconfigure the connections and settings of the circuit cells inside the LSI may also be used.

[0183] In the above embodiment, each component may be implemented by dedicated hardware or by executing a software program suitable for each component. Each component may be implemented by a program execution unit such as a CPU or processor reading and executing a software program recorded on a storage medium such as a hard disk or semiconductor memory.

[0184] Furthermore, all the numbers used above are merely examples for the purpose of specifically explaining the present disclosure, and the embodiments of the present disclosure are not limited to the numbers exemplified.

[0185] In addition, the division of functional blocks in the block diagram is an example, and multiple functional blocks may be realized as one functional block, one functional block may be divided into multiple blocks, or some functions may be transferred to another functional block. Furthermore, the functions of multiple functional blocks having similar functions may be processed in parallel or in a time-sharing manner by a single piece of hardware or software.

[0186] The present disclosure also includes forms obtained by applying various modifications conceivable by a person skilled in the art to the above-described embodiments, and forms realized by arbitrarily combining the components and functions of the embodiments without departing from the spirit of the present disclosure. In other words, the present disclosure also includes forms realized by arbitrarily combining the components and functions of the present embodiment, modifications 1 to 4, and other modifications.

[0187] Furthermore, the lighting device in this embodiment includes the lighting devices in Modifications 1 to 4 and other modifications, and the present disclosure also includes forms that are realized by arbitrarily combining the components and functions of the lighting devices in Modifications 1 to 4 and other modifications. [Explanation of symbols]

[0188] 1, 1a, 1b, 1c, 1c1, 1d, 1e, 1f lighting equipment 12 light source 30 Optical body 41 Gripping part 50 Control section 51 Storage section 52 Communications Department 53 Power supply section 54 Battery 55 Power supply connector 56 Power receiving unit 57 Power Transmission Unit 71 Detection unit 72 Acquisition Department 110 Stand

Claims

1. A lighting device capable of irradiating one or more spot illumination lights onto an illumination object, A plurality of light sources; a control unit that selectively controls each of the plurality of light sources to control an illumination light pattern of one or more of the spot illumination lights irradiated onto the illumination object; a plurality of optical bodies that irradiate the illumination object with the spot illumination light obtained by controlling the light distribution of the light emitted from each of the plurality of light sources in a one-to-one correspondence; The focal length of each of the optical bodies is longer or shorter than the distance between the lighting device and the object to be illuminated. Lighting equipment.

2. The focal lengths of the optical bodies are different from each other.

10. The lighting device of claim 1.

3. the illumination light pattern of the spot illumination light irradiated onto the illumination object includes a first illumination region that is a central portion of the illumination light pattern and a second illumination region that surrounds a periphery of the first illumination region, The average gradient of the illuminance distribution in the boundary portion between the first irradiation region and the second irradiation region is larger than the average gradient of the illuminance distribution in the center portion of the first irradiation region and the outer periphery of the second irradiation region.

3. The lighting device according to claim 1 or 2.

4. The average illuminance of the first illumination area is 1.1 to 100 times the average illuminance of the second illumination area.

4. The lighting device according to claim 3.

5. In the plurality of spot illumination lights subjected to light distribution control by the plurality of optical bodies, the focal points are shifted within a range of 1 m or more and 3 m or less along the irradiation direction from the optical body arranged at the forefront among the plurality of optical bodies.

3. The lighting device according to claim 1 or 2.

6. In the plurality of spot illumination lights subjected to light distribution control by the plurality of optical bodies, the first illumination area and the second illumination area are formed within a range of 0.7 m to 4 m along the illumination direction from the optical body arranged at the forefront of the plurality of optical bodies.

4. The lighting device according to claim 3.

7. In the plurality of spot illumination lights whose light distribution is controlled by the plurality of optical bodies, an effective distance at which the illumination light pattern can be recognized along an irradiation direction from the optical body arranged at the forefront among the plurality of optical bodies is 0.5 m or more.

3. The lighting device according to claim 1 or 2.

8. In the plurality of spot illumination lights whose light distribution is controlled by the plurality of optical bodies, an effective distance at which the illumination light pattern can be recognized along an irradiation direction from the optical body arranged at the forefront among the plurality of optical bodies is 10 m or less.

3. The lighting device according to claim 1 or 2.

9. The control unit controls the plurality of light sources to change at least one of a light distribution characteristic, a color tone, and an intensity of the spot illumination light.

3. The lighting device according to claim 1 or 2.

10. Further comprising a communication unit capable of communicating with an external device; the communication unit acquires control input data for controlling each of the plurality of light sources from the external device; The control unit controls each of the plurality of light sources in response to the control input data acquired by the communication unit.

3. The lighting device according to claim 1 or 2.

11. a storage unit that stores software for controlling the illumination light pattern of each of the plurality of light sources; The control unit controls each of the plurality of light sources using the software stored in the storage unit.

3. The lighting device according to claim 1 or 2.

12. a detection unit configured to detect at least one of a shape, a size, and a color tone of the illumination object irradiated with the spot illumination light, The control unit controls each of the plurality of light sources based on a detection result detected by the detection unit.

3. The lighting device according to claim 1 or 2.

13. a detection unit configured to detect at least one of a movement of the irradiation object irradiated with the spot illumination light and a temperature of the irradiation object; The control unit controls each of the plurality of light sources based on a detection result detected by the detection unit.

3. The lighting device according to claim 1 or 2.

14. An acquisition unit that acquires at least one of the following: season, calendar, time, weather, climate, temperature, and humidity; The control unit controls each of the plurality of light sources based on the content acquired by the acquisition unit.

3. The lighting device according to claim 1 or 2.

15. a housing that accommodates the light sources, the control unit, and the optical bodies; A grip portion connected to the housing.

3. The lighting device according to claim 1 or 2.

16. a housing that accommodates the light sources, the control unit, and the optical bodies; A stand for installing the housing is provided.

3. The lighting device according to claim 1 or 2.

17. A battery; a power supply unit for supplying power from the battery to the plurality of light sources; The battery and the power supply unit are housed in the housing.

16. An illumination device according to claim 15.

18. A power supply unit for supplying power to the plurality of light sources; a power supply connector for supplying power to the power supply unit, The power supply connector is powered by an external power source.

3. The lighting device according to claim 1 or 2.

19. a power receiving unit capable of receiving power from the power transmitting unit in a non-contact manner; a power supply unit for supplying the power received by the power receiving unit to the plurality of light sources.

3. The lighting device according to claim 1 or 2.

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