Lighting control device and lighting system

Abstract

To provide a lighting control device which enables a user to select desired chromaticity more easily than the prior arts, and a lighting system.SOLUTION: A lighting control device is configured to display on a touch panel a graphical user interface for controlling a lighting apparatus including LED packages of three colors. A graphical user interface of a normal specification for changing chromaticity of emission of the lighting apparatus along a black body radiation locus and a graphical user interface 130 of a presentation specification for making chromaticity not along the black body radiation locus also selectable in addition to the chromaticity along it are displayable while being switched as the graphical user interface. The graphical user interface 130 of the presentation specification comprises a plurality of color setting buttons 131 each corresponding to a predetermined number of chromaticity in the case of emission of the lighting apparatus and emitting light with correspondent chromaticity when touched by a user. A color simulating the corresponding chromaticity is applied to each of the color setting buttons 131 at least partially.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a lighting control device that controls a lighting fixture equipped with three-color LED packages. [Background technology]

[0002] In recent years, GUIs (Graphical User Interfaces) have been used to control the light emission of lighting fixtures. Patent Document 1 discloses a technique in which a chromaticity diagram is displayed as the GUI, a user selects a point on the diagram as color coordinates, and the lighting fixture emits light of a chromaticity corresponding to the selected color coordinates. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-117339 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above technique has a problem that the number of points that can be selected as color coordinates is conceptually infinite, and the user may be confused when selecting. Also, when a user wants to select color coordinates that were previously selected later, it is difficult to specify the same color coordinates.

[0005] In view of the above problems, an object of the present invention is to provide a lighting control device and a lighting system that allow a user to select a desired chromaticity more easily than ever before. [Means for solving the problem]

[0006] In order to solve the above problems, the lighting control device of the present invention is a lighting control device that displays on a touch panel a graphical user interface for controlling a lighting device equipped with LED packages of multiple colors, and the graphical user interface can be switched between a normal graphical user interface for changing the chromaticity of the light emitted by the lighting device along the blackbody radiation locus and a performance-specification graphical user interface that makes it possible to select chromaticities that do not follow the blackbody radiation locus in addition to chromaticities that follow the blackbody radiation locus, and the performance-specification graphical user interface has a plurality of color setting buttons that correspond to a predetermined number of chromaticities when the lighting device emits light and that, when touched by a user, cause the lighting device to emit light at the corresponding chromaticity, and each of the color setting buttons is at least partially colored in a color that imitates the corresponding chromaticity. Effect of the Invention

[0007] With the above-mentioned configuration, the lighting control device of the present invention has a graphical user interface for performance specifications in which the number of chromaticities available for selection is limited to a predetermined number, and each chromaticity can be recognized by an image of a color that imitates the chromaticity, allowing the user to easily select the desired chromaticity. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1A is a diagram showing an overall configuration of a lighting system according to an embodiment of the present invention, and FIG. 1B is a diagram for explaining an LED package of a lighting fixture included in the lighting system. [Diagram 2] FIG. 2A is a block diagram showing the configuration of a lighting fixture included in a lighting system, and FIG. 2B is a block diagram showing the configuration of a lighting control device included in the lighting system. [Diagram 3] 3 is a chromaticity diagram for explaining the chromaticity of a light source included in a lighting fixture. FIG. [Figure 4] FIG. 13A is a diagram showing a GUI for editing a group, and FIG. 13B is a diagram showing a GUI for calling up a normal specification GUI and a performance specification GUI. [Diagram 5]FIG. 13 is a diagram showing a GUI of a performance specification for adjusting light and color. [Figure 6] A diagram showing RGB values ​​representing the colors of each color setting button displayed in the GUI of the performance specifications. [Figure 7] FIG. 13 illustrates a recommendation list GUI. [Figure 8] FIG. 13 is a diagram showing a GUI of normal specifications for adjusting light and color. [Figure 9] FIG. 13 illustrates a recommendation list GUI. [Figure 10] FIG. 13 is a diagram showing a GUI for fine-tuning a color tone. [Figure 11] A figure showing a GUI for switching between normal specifications and performance specifications in one modified example of the present invention. [Figure 12] FIG. 13 is a diagram showing an overall configuration of a lighting system according to a modified example of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] <1. First embodiment> <1.1. Configuration> Hereinafter, a lighting system 1 according to an embodiment of the present invention will be described with reference to the drawings.

[0010] Fig. 1(a) is a diagram showing an overall configuration of a lighting system 1 according to an embodiment of the present invention. As shown in Fig. 1, the lighting system 1 includes a plurality of lighting devices 4a, 4b, 4c, ..., 4d (hereinafter collectively referred to as "lighting devices 4") and a smartphone 6 as an example of a lighting control device for controlling the lighting devices 4.

[0011] Each of the lighting fixtures 4 and the smartphone 6 communicate with each other wirelessly. The wireless communication is, for example, in accordance with the Bluetooth (registered trademark) Low Energy (BLE) standard. The lighting fixtures 4 and the smartphone 6 form a mesh network, and even if they are out of wireless range or if there is an obstacle and wireless communication cannot reach them, they can indirectly communicate with each other through the mesh network within the range of the mesh network. For example, as shown in FIG. 1(a), when the smartphone 6 cannot directly communicate with the lighting fixture 4d but can directly communicate with the lighting fixture 4b, the smartphone 6 can indirectly communicate with the lighting fixture 4d through the lighting fixtures 4b, 4c, etc. using the mesh network.

[0012] The lighting fixture 4 includes three LED (Light Emitting Diode) packages as an example of multiple colors, and the chromaticity of the light emitted by the lighting fixture 4 changes depending on the balance of the dimming rate of each LED package (hereinafter referred to as the "package dimming rate"). That is, the smartphone 6 stores the package dimming rate of each of the three LEDs when the lighting fixture 4 is caused to emit light at a certain chromaticity. In addition, the user can control the light emission state by specifying a dimming rate for the lighting fixture 4 from 0% which is an off state to 100% which is a fully lit state. The dimming rate specified by the user is hereinafter referred to as the "specified dimming rate". When the lighting fixture 4 is caused to emit light at a certain chromaticity, the smartphone 6 controls each LED package to emit light at a dimming rate obtained by multiplying each package dimming rate corresponding to that chromaticity by the specified dimming rate. That is, even if the specified dimming rate is changed, the chromaticity of the light emitted by the lighting fixture 4 does not change.

[0013] Smartphone 6 has a GUI that enables the user to specify the desired dimming rate and chromaticity, and sends a control signal corresponding to the chromaticity and specified dimming rate specified by the user to lighting device 4, and lighting device 4 emits light in accordance with the notified control signal. Smartphone 6 has a GUI that makes it easier for the user to specify chromaticity selection than before, improving user convenience.

[0014] In the following description, the term "dimming rate" refers to the "specified dimming rate" unless otherwise specified.

[0015] <1.1.1. Lighting fixture 4> Hereinafter, regarding the lighting fixture 4, the configuration of the lighting fixture 4a will be described. The configurations of the other lighting fixtures 4b, 4c... 4d of the lighting fixture 4 are the same.

[0016] As shown in Fig. 2(a), the lighting fixture 4a includes a light source unit 40, a circuit unit 43, and a WM (Wireless Module) unit 44.

[0017] <Light source unit 40> As shown in Fig. 1(b), the light source unit 40 includes a light source composed of an LED package 42 and a light source substrate 41 which is a circuit board for arranging the light source. Note that the light source only needs to function as a lighting light source and may be composed of other than LEDs such as an organic EL (Electro Luminescence) device. The light source unit 40 performs operations such as lighting, extinguishing, dimming rate change, and chromaticity change (also referred to as "color tuning") of the light source based on the input control signal.

[0018] <Chromaticity of LED> As the LED package 42, three types are used: a blue-white LED 42c "Bw", a red LED 42b "R", and a yellow-white LED 42a "Yw". Note that although Yw is a color close to yellow on the chromaticity diagram, it also appears as a color close to green when the other Bw and R are lit simultaneously. Fig. 3 is the CIE1931 chromaticity coordinates for explaining the chromaticity of these LEDs, and the line connecting the chromaticities of blackbody radiation at each color temperature (hereinafter referred to as the "blackbody radiation locus") is shown by a dashed line for reference.

[0019] Bw, which is the blue-white LED 42c, emits light with a chromaticity in the range surrounded by (0.336, 0.24), (0.352, 0.44), (0.15, 0.2), and (0.2, 0.1) on the chromaticity coordinates of Fig. 3, and is, for example, (0.23, 0.26).

[0020] The red LED 42b R emits light with a chromaticity in the range surrounded by the chromaticity boundary line E, i.e., (0.66, 0.23), (0.423, 0.355), and (0.5, 0.5) in the chromaticity coordinates of Fig. 3, and is (0.60.0.38) as an example. Please note that this is not the same as the general definition of red.

[0021] The yellow-white LED 42a Yw emits light with a chromaticity in the range surrounded by (0.5, 0.5), (0.423, 0.355), (0.342, 0.312), (0.352, 0.44), (0.37, 0.63) and the chromaticity boundary line E in the chromaticity coordinates of FIG. 3, and is, for example, (0.44, 0.47).

[0022] Within the chromaticity range of Yw, it is preferable that duv (color deviation) is within a positive range from the blackbody radiation locus at each color temperature, and it is particularly preferable that duv is within a range of plus 0.03 to minus 0.03 from the line connecting the chromaticities of the blackbody radiation at each color temperature. Within the chromaticity range of Bw and R, it is particularly preferable that duv is within a range of plus 0.03 to minus 0.03 from the line connecting the chromaticities of the blackbody radiation at each color temperature.

[0023] It should be noted that it can also be expressed in CIE1976 chromaticity coordinates (u',v') instead of CIE1931 chromaticity coordinates (x,y), and the two can be converted to each other using the conversion formula u'=4x / (-2x+12y+3),v'=9y / (-2x+12y+3). It can also be expressed in other chromaticity coordinate systems.

[0024] <Circuit section 43> The circuit section 43 includes a socket for mounting the WM section 44 , and has a function of supplying a direct current to the light source section 40 in response to a control signal received from the WM section 44 .

[0025] The circuit unit 43 converts commercial AC power into DC power and has three-channel drive outputs to independently operate three types of LED packages in the light source unit 40. Each drive output can be controlled by an external control signal. In this embodiment, the control signal is wirelessly transmitted and received by the WM unit 44. The WM unit 44 sends the control signal to the circuit unit 43, and the circuit unit 43 is controlled. By independently controlling the three-channel drive outputs with the control signal, the light source unit 40 can emit light at any chromaticity surrounded by the chromaticities of the three LEDs.

[0026] <WM unit 44> The WM unit 44 is a module that performs wireless communication. It is configured as a detachable single device and is detachable from the socket of the circuit unit 43. Although the WM unit 44 is assumed to be capable of wireless communication according to a plurality of communication specifications, it is not limited thereto. For example, dedicated WM units 44 may be prepared for different communication specifications, and the WM unit 44 corresponding to the communication protocol to be used may be mounted on the socket. The WM unit 44 includes a wireless communication unit 44a and a control unit 44b.

[0027] <Wireless communication unit 44a> The wireless communication unit 44a has a function of performing wireless communication. The wireless communication unit 44a functions as a transmission means for transmitting information and a reception means for receiving information. The wireless communication unit 44a holds a Media Access Control address (hereinafter referred to as "MAC address") as an example of identification information. The MAC address is also used as an address for wireless communication.

[0028] When the wireless communication unit 44a receives communication data, if the communication data is addressed to its own device, it notifies the control unit 44b, and if the communication data is addressed to another device, it transfers it to the other device via the mesh network.

[0029] <Control unit 44b> The control unit 44b includes an IC (Integrated Circuit) and has a function of controlling the operation of the lighting fixture 4.

[0030] When the control unit 44b receives an operation instruction regarding the operation of the light source, such as turning on, turning off, blinking, increasing the dimming rate, or decreasing the dimming rate, the control unit 44b outputs a control signal to the circuit unit 43 to perform the operation indicated by the operation instruction.

[0031] <1.1.2. Smartphone 6> Smartphone 6 is a portable information terminal device having a rectangular plate-like appearance as shown in Fig. 1(a) and having a touch panel 65 fitted on one surface. Smartphone 6 has a function for controlling the light-emitting operation of lighting device 4, and displays a GUI for controlling the light-emitting operation of lighting device 4 on touch panel 65. Smartphone 6 determines the instruction for the operation requested by the user based on the content of the GUI displayed on touch panel 65 and the touch or gesture input made by the user to touch panel 65 (hereinafter referred to as "user input"), and transmits a control signal based on the user input to the lighting device 4 to be controlled.

[0032] As shown in FIG. 2(b), the smartphone 6 includes a control unit 61, a ROM 62, a RAM 63, a wireless communication unit 64, and a touch panel 65.

[0033] <rom62> The ROM 62 is composed of a flash memory or the like, and holds various data, including applications, programs, and image data to be displayed as a GUI.

[0034] ROM 62 holds a correspondence table between the chromaticity when light source unit 40 emits light and the dimming ratio of each LED package 42 to realize that chromaticity. ROM 62 also stores dimming ratios designated by the user and information on the lighting fixtures 4 that belong to each group when the lighting fixtures 4 are divided into groups.

[0035] <ram63> The RAM 63 is a storage device into which the lighting control program stored in the ROM 62 is loaded.

[0036] <Touch Panel 65> The touch panel 65 is an electronic component that combines a display unit that displays images and information constituting the GUI with an input unit that accepts user instructions, and functions as a user interface means. The display unit is, for example, a liquid crystal panel. The input unit is, for example, a touch pad. The touch panel 65 notifies the control unit 61 of the user input.

[0037] <Control unit 61> The control unit 61 includes a CPU (Central Processing Unit). Each function of the smartphone 6 is realized by the control unit 61 executing a lighting control program loaded from the ROM 62 and stored in the RAM 63. The control unit 61 identifies the content of a user instruction based on the GUI displayed on the touch panel 65 and a user input notified from the touch panel 65, and executes a process according to the user instruction.

[0038] <Wireless Communication Unit 64> The wireless communication unit 64 is configured with a device that performs wireless communication. The wireless communication unit 64 performs wireless communication with each of the lighting fixtures 4.

[0039] In the smartphone 6, it is not necessary to store the GUI and the like in the ROM 62 in advance, and an app capable of displaying the GUI may be downloaded from a server and stored in the ROM 62. In other words, by downloading an app to a smartphone distributed in the market, the smartphone can be used as a user interface means.

[0040] <1.2.GUI> Hereinafter, each of the GUIs displayed on the smartphone 6 for controlling each lighting fixture 4 used in the lighting system 1 will be described.

[0041] <1.2.1.Grouping GUI110> In the lighting system 1, the lighting fixtures 4 are divided into a plurality of groups, and the lighting fixtures 4 belonging to the same group can be dimmed and adjusted in color so as to emit light with the same dimming rate and the same chromaticity.

[0042] FIG. 4(a) shows a group editing GUI 110 for associating lighting fixtures 4 with a certain group.

[0043] The GUI 110 includes a cancel button 112a, a save button 112b, a group name display section 112c, and lighting fixture selection buttons 113, 114, . . . , 115.

[0044] Lighting fixture selection buttons 113, 114, ..., 115 each correspond to a lighting fixture that can communicate with the smartphone 6. In the GUI 110, lighting fixture selection buttons 113, 114, ..., 115 corresponding to each lighting fixture 4 that can wirelessly communicate with the smartphone 6 are displayed. In the GUI 110, the same number of lighting fixture selection buttons as the number of lighting fixtures 4 that can communicate with the smartphone 6 are displayed, but if it is not possible to display all lighting fixture selection buttons at once due to limitations in the size of the display area of ​​the touch panel, a predetermined number of lighting fixture selection buttons may be displayed at a time, and the displayed lighting fixture selection buttons may be switched by scrolling or the like.

[0045] The lighting fixture selection button 113 includes a check box 113a, a lighting fixture ID 113b, and a channel number 113c.

[0046] The check box 113a is used by the user to include the lighting fixture 4 corresponding to the lighting fixture selection button 113 in a group. Every time the user touches the check box 113a, the display toggles between a checked state and an unchecked state. In the checked state, for example, a check mark is displayed within a rectangular frame. When the user wants to include the lighting fixture corresponding to the lighting fixture selection button 113 in a group, the user checks the check box 113a.

[0047] The lighting fixture ID 113b indicates an ID for identifying a lighting fixture corresponding to the lighting fixture selection button 113. In the present embodiment, the lighting fixture ID is, for example, "ID15".

[0048] The number of channels 113c indicates the number of channels of a control signal for controlling the light source unit 40 included in the lighting fixture corresponding to the lighting fixture selection button 113. An LED package of one color is controlled by a control signal of one channel, and to control an LED package of two or more colors, the same number of channels as the number of colors are required.

[0049] The save button 112b is a button for issuing an instruction to save information about which lighting fixtures 4 belong to which group, which information was set using the GUI 110, and when the user touches this button, the information is stored in the ROM 62.

[0050] The cancel button 112a is a button for discarding the contents that have been set using the GUI 110 without saving them.

[0051] The group name 112c indicates the name given to the group to be set. The group name 112c is editable, and when the user touches it, a software keyboard or the like for editing is displayed. The user inputs and saves the group name using the software keyboard.

[0052] <1.2.2. Group switching GUI 120> FIG. 4(b) shows a GUI 200 (see FIG. 8) of normal specifications for adjusting the light and color of a group, and a GUI 120 for calling up a GUI 130 (see FIG. 5) of performance specifications.

[0053] Here, the normal specification GUI is a GUI that allows a user to specify a chromaticity along the blackbody radiation locus when specifying a chromaticity related to the light emitted by a lighting fixture. The performance specification GUI is a GUI that allows a user to select a chromaticity that does not follow the blackbody radiation locus in addition to a chromaticity that follows the blackbody radiation locus when specifying a chromaticity related to the light emitted by a lighting fixture, and as an example, includes a plurality of color setting buttons that correspond to a plurality of chromaticities when the lighting fixture 4 emits light and that emit light at the corresponding chromaticity when touched by the user, and each of the color setting buttons is at least partially colored with a color that imitates the corresponding chromaticity.

[0054] GUI 120 includes a normal specification display panel 123 and a performance specification display panel 124. When normal specification display panel 123 is touched by a user, the screen transitions to display GUI 200 of the normal specification (see FIG. 8), and when performance specification display panel 124 is touched by a user, the screen transitions to display GUI 130 of the performance specification (see FIG. 5).

[0055] The normal specification display panel 123 includes a dimming rate display bar 123a, a cursor 123b, a color temperature display section 123c, and a dimming rate display section 123d.

[0056] The dimming rate display bar 123a indicates 0% at the left end and 100% at the right end, and the currently set dimming rate is indicated by the position of the cursor 123b on the dimming rate display bar 123a. The dimming rate display section 123d indicates the currently set dimming rate as a numerical value. The color temperature display section 123c indicates the color temperature of the light emitted by the light source unit 40 according to the currently set value as a numerical value (for example, "4000K (Kelvin)").

[0057] The performance specification display panel 124 includes a dimming rate display bar 124a, a cursor 124b, a color temperature display section 124c, and a dimming rate display section 124d.

[0058] The left end of the dimming ratio display bar 124a represents 0% and the right end represents 100%, and the currently set dimming ratio is represented by the position of the cursor 123b on the dimming ratio display bar 124a. The dimming ratio display section 124d indicates the currently set dimming ratio as a numerical value. The color temperature display section 123c is a circular image, and its color represents the color temperature of the light emitted by the light source unit 40 according to the current setting.

[0059] <1.2.3. Production specification GUI130> FIG. 5 is a diagram showing the GUI 130 of the performance specifications for adjusting the light and color.

[0060] As shown in FIG. 5, the GUI 130 includes a color selection area 131, a switching section 132, a dimming rate selection section 135, a horizontal color selection section 137, and a vertical color selection section 139.

[0061] The color selection area 131 is composed of a rectangular frame and a predetermined number (for example, 11 x 11) of circular color setting buttons 131a, 131b, 131c, 131d, ..., 131h... (collectively referred to as "color setting buttons 131X" below) arranged in a rectangular matrix.

[0062] It is desirable to limit the number of color setting buttons arranged in the color selection area 131 so that the user has not too few options to choose from, but not so many that the user is confused about which one to choose. For this reason, it is desirable to have between 5×5 and 15×15 color setting buttons.

[0063] The color setting button 131X is associated with the chromaticity of light emitted by the light source unit 40 of the lighting device 4. By touching the color setting button 131X, the user can cause the light source unit 40 of the lighting device 4 to emit light with the chromaticity that is previously associated with the color setting button 131X.

[0064] The color setting buttons 131X correspond to the chromaticity when the light source unit 40 emits light, more precisely, to a control signal output to the light source unit 40 to emit light with that chromaticity. That is, each color setting button 131X corresponds to a control signal corresponding to a current value supplied to each of the bluish white LED 42c, the red LED 42b, and the yellowish white LED 42a, and a correspondence table thereof is stored in the ROM 62.

[0065] When touch panel 65 detects that a user has touched color setting button 131X on smartphone 6, it notifies control unit 61 of the touched color setting button 131X. Control unit 61 refers to a correspondence table between chromaticity and control signals corresponding to buttons stored in ROM 62, reads out a control signal corresponding to the touched color setting button 131X, and transmits it to lighting device 4, which is the object of control, via wireless communication unit 64. Lighting device 4 that has received the control signal causes light source unit 40 to emit light with a chromaticity corresponding to the control signal.

[0066] <Layout of color setting button 131X> Here, the arrangement of each color setting button 131X in the rectangular matrix will be described. In the rectangular matrix of color selection area 131, color setting button 131a is arranged in the lower right corner, color setting button 131b in the upper right corner, color setting button 131c in the upper left corner, and color setting button 131d in the lower left corner.

[0067] The color setting button 131a corresponds to the chromaticity coordinates of the light color when only the red LED 42b is turned on, and is associated with a control signal that turns on only the red LED 42b. When the user touches the color setting button 131a, only the red LED 42b in the light source unit 40 is turned on.

[0068] The color setting button 131b corresponds to the chromaticity coordinates of the light color when only the bluish-white LED 42c is turned on, and is associated with a control signal for turning on only the bluish-white LED 42c. When the user touches the color setting button 131b, only the bluish-white LED 42c in the light source unit 40 is turned on.

[0069] The color setting button 131c corresponds to the chromaticity coordinates of the light color when only the yellow-white LED 42a is turned on, and is associated with a control signal for turning on only the yellow-white LED 42a. When the user touches the color setting button 131c, only the yellow-white LED 42a in the light source unit 40 is turned on.

[0070] Color setting button 131d corresponds to the chromaticity coordinates of the midpoint between the chromaticity coordinates corresponding to color setting button 131a and the chromaticity coordinates corresponding to color setting button 131c, and is associated with a control signal that turns on red LED 42b and yellow-white LED 42a at the same dimming rate. When a user touches color setting button 131d, red LED 42b and yellow-white LED 42a in light source unit 40 turn on at the same dimming rate.

[0071] 5, nine color setting buttons are arranged between adjacent color setting buttons located at the four corners of a rectangle in the color selection area 131. The chromaticity associated with a color setting button (for convenience, referred to as a "third color setting button") between adjacent color setting buttons (for convenience, referred to as a "first color setting button" and a "second color setting button") located at the four corners of a rectangle in the color selection area 131 corresponds to each chromaticity coordinate obtained by equally dividing (in this embodiment, by 10) the line connecting the chromaticity coordinates corresponding to the first color setting button and the chromaticity coordinates corresponding to the second color setting button on the chromaticity diagram shown in FIG.

[0072] For example, as shown in Fig. 5, nine color setting buttons including a color setting button 131h are arranged between color setting button 131a and color setting button 131b. Each color setting button corresponds to a point that divides a line connecting the chromaticity coordinates (0.60.0.38) of the red LED 42b corresponding to color setting button 131a and the chromaticity coordinates (0.23, 0.26) of the bluish white LED 42c corresponding to color setting button 131b into ten equal parts in the chromaticity coordinates of Fig. 3. Color setting button 131h corresponds to the chromaticity coordinates of the point closest to the chromaticity coordinates (0.60.0.38) among the nine points that divide the line connecting both chromaticity coordinates into ten equal parts.

[0073] Here, in the chromaticity diagram, the chromaticity near the chromaticity coordinate of the chromaticity when the red LED 42b and the yellowish white LED 42a are turned on at the same dimming rate is easily discernible by the user. Therefore, by associating the chromaticity when the red LED 42b and the yellowish white LED 42a are turned on at the same dimming rate with the color setting button 131d, it is possible to provide detailed options within the color selection area 131 for a plurality of chromaticities near the chromaticity coordinates whose differences are easily discernible by the user. Therefore, the GUI 130 is a user interface that makes it easy for the user to select a desired chromaticity.

[0074] The setting of color setting button 131d does not necessarily have to correspond to the chromaticity when red LED 42b and yellow-white LED 42a are turned on at the same dimming rate. For example, in a case where light source unit 40 of lighting device 4 has LED packages of four different colors instead of three colors as described above, the setting of color setting button 131d may correspond to the chromaticity when any of the four LED packages emits light, or more precisely, to a control signal output to light source unit 40 to emit light at that chromaticity, and each of the four LED packages may correspond to a color setting button at each of the four corners of the rectangular matrix of color selection area 131.

[0075] Furthermore, when the light source unit 40 includes a plurality of LED packages, each LED package of each color may be associated with one of the color setting buttons in the rectangular matrix of the color selection area 131.

[0076] Similarly, when the first color setting button and the second color setting button are not located at the four corners, the chromaticity of the K-th (K is any one of 1 to 9) color setting button located between the first and second color setting buttons and counting from the first color setting button corresponds to the K-th chromaticity coordinate counting from the chromaticity coordinate of the first color setting button among the chromaticity coordinates on the chromaticity diagram of the first color setting button and the chromaticity coordinates of the second color setting button on the chromaticity diagram, which are connected by a straight line and divided equally by the number of color setting buttons located between the first and second color setting buttons + 1.

[0077] Each color setting button 131X is filled with the color of an image that allows the user to intuitively grasp the color of light emitted by the light source unit 40 when the color setting button 131X is touched.

[0078] 6 shows the colors of the images of the color setting buttons 131X in the rectangular matrix of the color selection area 131 in RGB format. Each of the color setting buttons 131X is associated with an RGB value. Gm (m is 0 to 10) in FIG. 6 indicates the color setting button in the horizontal direction based on the color setting button 131c in the upper left corner of the matrix, and Pn (n is 0 to 10) indicates the color setting button in the vertical direction based on the color setting button 131c in the upper left corner of the matrix. For example, the color setting button 131h corresponds to the intersecting column of G10 and P9, and R is expressed as 255, G as 57, and B as 40.

[0079] 6 indicates that values ​​actually exist in columns G2 to G8, rows P2 to P8, and some of rows P1 and P9, but are omitted in FIG.

[0080] 5, the switching unit 132 includes a normal performance switching button 132a, a recommendation button 132b, and an area for displaying the group name. In the case of the GUI 130, the group name is the "large conference room group."

[0081] The cursor 131e is an image that surrounds the color setting button to clarify which color setting button has been selected by the user's touch.

[0082] The normal performance switching button 132a is a button for switching from the display of the GUI 130 in the performance specifications to the display of the normal specifications GUI 200. When touched by the user, the display switches to the GUI 200 in the normal specifications.

[0083] When the user touches the recommendation button 132b, a GUI 150 (see FIG. 7) displaying a recommendation list is displayed as a pop-up. Note that the GUI 150 does not necessarily have to be displayed as a pop-up, and may be switched to the display of the GUI 150.

[0084] The dimming ratio selection unit 135 is a UI that allows the user to specify a desired dimming ratio, and includes a dimming ratio bar 135a, a dimming ratio display mark 135b, a dimming ratio value display unit 135c, an increase button 135d, a decrease button 135e, a rapid increase button 135f, and a rapid decrease button 135g.

[0085] When a dimming ratio is specified by the user using the dimming ratio selection unit 135, the smartphone 6 notifies the lighting device 4 to be controlled of the specified dimming ratio, and the lighting device 4 causes the light source unit 40 to emit light at the specified dimming ratio.

[0086] As shown in Fig. 5, dimming ratio bar 135a is an image showing dimming ratios from 0 to 100%, and the position where dimming ratio display mark 135b is arranged on dimming ratio bar 135a indicates the set dimming ratio. Fig. 5 shows a case where the dimming ratio is 77% as an example. The position of dimming ratio display mark 135b on dimming ratio bar 135a can be changed by the user touching dimming ratio bar 135a, or by the user touching and dragging dimming ratio display mark 135b to change its position on dimming ratio bar 135a.

[0087] The dimming rate value display unit 135c displays the set dimming rate value as a numerical value, and also functions as a UI for changing the dimming rate.

[0088] Specifically, when the user touches the dimming rate value display section 135c, a software keyboard for inputting a numerical value is displayed. The user can specify the dimming rate by inputting the value of the dimming rate using the software keyboard, and the specified dimming rate is displayed as a numerical value on the dimming rate value display section 135c.

[0089] Here, when the user changes the dimming ratio by moving the dimming ratio display mark 135b, the dimming ratio displayed by the dimming ratio value display unit 135c also changes in tandem, and when the dimming ratio is changed using the dimming ratio value display unit 135c, the position of the dimming ratio display mark 135b on the dimming ratio bar 135a changes in tandem to indicate the specified dimming ratio.

[0090] The increase button 135d, the decrease button 135e, the rapid increase button 135f, and the rapid decrease button 135g increase the dimming rate set in the dimming rate value display unit 135c by 1%, decrease the dimming rate by 1%, increase the dimming rate by 10%, and decrease the dimming rate by 10%, respectively.

[0091] Color selection unit 137 is a UI for changing the color setting button designated in color selection area 131 to the color setting button adjacent thereto in the horizontal direction. When the color setting button designated by color selection unit 137 is changed, light source unit 40 of lighting device 4 emits light with the chromaticity indicated by the changed color setting button, in the same manner as when color setting button 131X is touched by the user as described above.

[0092] Color selection section 137 includes a horizontal position display section 137a, a decrease button 137b, and an increase button 137c.

[0093] The horizontal position display portion 137a indicates the horizontal position of the selected color setting button in the color selection area 131.

[0094] The decrease button 137b and the increase button 137c are buttons for selecting the color setting button to the left and the color setting button to the right of the currently selected color setting button, respectively.

[0095] Each time the user touches the decrease button 137b, the color setting button to the left of the currently selected color setting button is selected, the position of the cursor 131e is decreased by 1 in the horizontal direction so as to surround the selected color setting button, and in conjunction with this, the numerical value displayed in the horizontal position display section 137a is decreased by 1.

[0096] In addition, each time the user touches the increment button 137c, the color setting button to the right of the currently selected color setting button is selected, the position of the cursor 131e is incremented by 1 in the horizontal direction so as to surround the selected color setting button, and in conjunction with this, the numerical value displayed by the horizontal position display section 137a is incremented by 1.

[0097] Color selection unit 139 is a UI portion for changing the color setting button specified in color selection area 131 to a color setting button above or below in the vertical direction. When the color setting button specified by color selection unit 139 is changed, light source unit 40 of lighting device 4 emits light with the chromaticity indicated by the changed color setting button, in the same manner as when color setting button 131X is touched by the user as described above.

[0098] Color selection section 139 includes a vertical position indicator 139a, a decrease button 139c, and an increase button 139b.

[0099] The vertical position display portion 139a indicates the vertical position of the cursor 131e of the selected color setting button in the color selection area 131.

[0100] The decrease button 139c and the increase button 139b are buttons for selecting the color setting button below and the color setting button above the currently selected color setting button, respectively.

[0101] Each time the user touches the decrease button 139c, the color setting button below the currently selected color setting button is selected, the position of the cursor 131e is decreased by 1 in the vertical direction so as to surround the selected color setting button, and in conjunction with this, the numerical value displayed in the vertical position display section 139a is decreased by 1.

[0102] In addition, each time the user touches the increment button 139b, the color setting button above the currently selected color setting button is selected, the position of the cursor 131e is incremented by 1 in the vertical direction so as to surround the selected color setting button, and in conjunction with this, the numerical value displayed by the vertical position display section 139a is incremented by 1.

[0103] <1.2.4. Recommendation List GUI150> The recommendation list GUI 150 is a GUI that presents several chromaticities that are recommended for selection by the user and allows the user to select from them. Since the options are narrowed down in advance, the user can easily select a chromaticity without the burden of selecting one from a large number of options.

[0104] As shown in FIG. 7, the GUI 150 includes panels 151a to 151h (hereinafter collectively referred to as "panels 151"), a cancel button 153a, and an enter button 153b.

[0105] Each of the panels 151a to 151h corresponds to a chromaticity and dimming ratio when the light source unit 40 emits light, more precisely, a control signal to be output to the light source unit 40 to emit light at that chromaticity and dimming ratio. In addition, it is preferable that the panels 151a to 151h correspond to a chromaticity associated with any one of the color selection buttons in the color selection area 131.

[0106] When the user touches any of the panels 151a to 151h, the corresponding control signal is transmitted to the lighting fixture 4 to be controlled. The lighting fixture 4 that receives the control signal causes the light source unit 40 to emit light at a chromaticity and dimming ratio corresponding to the control signal. At this time, the dimming ratio and chromaticity designated by the user are not stored, and the state is a preview state in which the dimming ratio and chromaticity are temporarily changed to the designated dimming ratio and chromaticity. When the confirm button 153b is touched in the preview state, the designated dimming ratio and chromaticity are stored. When the cancel button 153a is touched, the dimming ratio and chromaticity are returned to the stored previous preview state, and the display of the GUI 150 disappears, returning to the original display of the GUI 130.

[0107] Furthermore, when the user touches any of the panels 151a to 151h, the panel is selected by the user, and the color of the panel changes to black to clearly indicate which panel is selected. When the selected panel is touched again in the selected state, the selection is cancelled. Each time the user touches a panel, the selected state and the cancelled state are toggled.

[0108] The panel 151a includes a color display section 151aa, a horizontal coordinate section 151ab, a vertical coordinate section 151ac, a dimming ratio section 151ad, and a color description section 151ae.

[0109] The color display section 151aa is a circular image painted in such a way that the chromaticity of the light emitted by the light source section 40 when the panel 151a is touched is expressed by the color of the image that the user can intuitively grasp.

[0110] The horizontal coordinate section 151ab indicates the horizontal position of the color selection button in the color selection area 131 to which the panel 151a corresponds, and corresponds to the above-mentioned Gm.

[0111] The vertical coordinate section 151ac indicates the vertical position of the color selection button in the color selection area 131 to which the panel 151a is associated, and corresponds to the above-mentioned Pn.

[0112] The dimming rate section 151ad indicates the dimming rate when the light source section 40 emits light when the panel 151a is touched.

[0113] The color explanation section 151ae is a section that describes the color displayed in the color display section 151aa by comparing it to an object or phenomenon of a similar color so that a person can easily recognize it.

[0114] The panels 151b to 151h each have the same configuration as the panel 151a.

[0115] <1.2.5. Standard specification GUI200> The normal specification means that the chromaticity when the light source unit 40 emits light is changed between a chromaticity corresponding to a low color temperature and a chromaticity corresponding to a high color temperature along the blackbody locus. The smartphone 6 holds a database in the ROM 62 that associates each color temperature with a chromaticity, and can convert between color temperature and chromaticity.

[0116] FIG. 8 is a diagram showing a GUI 200 of normal specifications for adjusting light and color.

[0117] As shown in FIG. 8, the GUI 200 includes a color selection area 201, a switching section 202, a dimming rate selection section 205, a color temperature selection section 207, a preview button 203a, and a decision button 203b.

[0118] A user can use the color selection area 201 and the color temperature selection unit 207 to specify the color temperature at which the light source unit 40 emits light, and can use the color selection area 201 and the dimming ratio selection unit 205 to specify the dimming ratio at which the light source unit 40 emits light.

[0119] Here, the light source unit 40 of the lighting device 4 does not immediately emit light with the dimming ratio and color temperature specified by the user. When the preview button 203a is touched, the light source unit 40 emits light with the specified dimming ratio and color temperature. At this time, the dimming ratio and color temperature specified by the user are not stored, and the state is a preview state in which the dimming ratio and color temperature are temporarily changed to the specified dimming ratio and color temperature. When the confirm button 203b is touched in the preview state, the specified dimming ratio and color temperature are stored, and a control signal for emitting light with the dimming ratio and color temperature corresponding to the position of the cursor 201a is transmitted from the smartphone 6 to the lighting device 4 to be controlled, and the lighting device 4 emits light from the light source unit 40 with the received dimming ratio and color temperature. On the other hand, when the preview button 203a is touched in the preview state, the dimming ratio and color temperature are returned to the stored dimming ratio and color temperature before the preview state.

[0120] The color selection area 201 is a rectangular color selection area, the left side of which corresponds to a low color temperature and the right side of which corresponds to a high color temperature, and is colored in a color that diagrammatically represents the color temperature.

[0121] As an example, the color selection area 201 is colored dark orange on the left side as one faces the paper and dark blue on the right side as one faces the paper, with a gradation from dark orange to light orange, light blue, and dark blue.

[0122] The cursor 201a indicates the dimming rate at which the light source unit 40 emits light depending on the vertical position of the color selection area 201, and indicates the color temperature at which the light source unit 40 emits light depending on the horizontal position of the color selection area 201. When the user touches inside the color selection area 201, the cursor 201a is displayed at that position.

[0123] The dimming ratio selection section 205 is a UI for the user to specify a desired dimming ratio, and includes a dimming ratio bar 205a, a dimming ratio display mark 205b, a dimming ratio value display section 205c, an increase button 205d, a decrease button 205e, a rapid increase button 205f, and a rapid decrease button 205g.

[0124] When a dimming ratio is specified by the user using the dimming ratio selection unit 205, the smartphone 6 notifies the lighting device 4 to be controlled of the specified dimming ratio, and the lighting device 4 causes the light source unit 40 to emit light at the specified dimming ratio.

[0125] As shown in Fig. 8, dimming ratio bar 205a is an image indicating a dimming ratio of 0 to 100%, and the position where dimming ratio display mark 205b is arranged on dimming ratio bar 205a indicates the set dimming ratio. In Fig. 8, a dimming ratio of 80% is shown as an example. The position of dimming ratio display mark 205b on dimming ratio bar 205a can be changed by the user touching dimming ratio bar 205a or by the user touching and dragging dimming ratio display mark 205b.

[0126] The dimming rate value display unit 205c is a UI that displays the currently specified dimming rate value as a numerical value, and also functions as a UI for changing the dimming rate.

[0127] Specifically, when the user touches the dimming rate value display section 205c, a software keyboard for inputting a numerical value is displayed. The user can specify the dimming rate by inputting the value of the dimming rate using the software keyboard, and the specified dimming rate is displayed as a numerical value on the dimming rate value display section 205c.

[0128] Here, when the user changes the dimming ratio by moving the dimming ratio display mark 205b, the dimming ratio displayed by the dimming ratio value display unit 205c also changes in tandem, and when the dimming ratio is changed using the dimming ratio value display unit 205c, the position of the dimming ratio display mark 205b on the dimming ratio bar 205a changes in tandem to indicate the specified dimming ratio.

[0129] The increase button 205d, the decrease button 205e, the rapid increase button 205f, and the rapid decrease button 205g respectively increase the dimming rate by 1% when the light source unit 40 emits light, decrease the dimming rate by 1%, increase the dimming rate by 10%, and decrease the dimming rate by 10%.

[0130] Color temperature selection unit 207 is a UI for increasing or decreasing the selected color temperature. When the color temperature specified by color temperature selection unit 207 is changed, light source unit 40 of lighting device 4 emits light with a chromaticity corresponding to the changed color temperature.

[0131] The color temperature selection section 207 includes a color temperature bar 207a, a color temperature display mark 207b, a color temperature value display section 207c, an increase button 207d, a decrease button 207e, a rapid increase button 207f, and a rapid decrease button 207g.

[0132] Color temperature bar 207a is a UI that indicates color temperatures from 1800K to 12000K, and the position of color temperature display mark 207b on color temperature bar 207a indicates the specified color temperature. Fig. 8 shows, as an example, a case where the specified color temperature 80 is 5000K. The position of color temperature display mark 207b on color temperature bar 207a can be changed by the user touching color temperature bar 207a, or by the user touching and dragging color temperature display mark 207b.

[0133] The color temperature value display section 207c displays the currently specified color temperature value as a numerical value.

[0134] The increase button 207d, the decrease button 207e, the rapid increase button 207f, and the rapid decrease button 207g respectively increase the color temperature when the light source unit 40 emits light by 1%, decrease the color temperature by 1%, increase the color temperature by 10%, and decrease the color temperature by 10%.

[0135] The position of the dimming ratio display mark 205b on the dimming ratio bar 205a, the vertical position of the cursor 201a in the color selection area 201, and the numerical value of the dimming ratio value display section 205c, which indicate the dimming ratio, are linked, so that changing any one of them also changes the others to indicate the same dimming ratio.

[0136] In addition, the position of color temperature display mark 207b on color temperature bar 207a, the horizontal position of cursor 201a in color selection area 201, and the numerical value of color temperature display section 207c, which indicate the color temperature, are linked, so that changing any one of them also changes the others to indicate the same color temperature.

[0137] 8, the switching unit 202 includes a normal performance switching button 202a, a recommendation button 202b, and an area for displaying the group name. In the case of the GUI 200, the group name is "large conference room group."

[0138] The normal effect switching button 202a is a button for switching from a normal specification GUI to a performance specification GUI. When the user touches the button 202a, the display switches to the performance specification GUI 130.

[0139] When the recommendation button 202b is touched by the user, a GUI 250 (see FIG. 9) displaying a recommendation list is displayed.

[0140] When the user touches the detail button 202c, a GUI 280 (see FIG. 10) for fine-tuning the color tone is displayed.

[0141] <1.2.6. Recommendation List GUI250> The recommendation list GUI 250 is a GUI that presents several color temperatures that are recommended for the user to select and allows the user to select them. Since the options are narrowed down in advance, the user can easily select a color temperature without the burden of having to select one from a large number of options.

[0142] As shown in FIG. 9, the GUI 250 includes panels 251a to 251h (hereinafter collectively referred to as "panels 251"), a cancel button 253a, and an enter button 253b.

[0143] Each of the panels 251a to 251h is associated with a color temperature and dimming ratio when the light source unit 40 emits light, more precisely, with a control signal to be output to the light source unit 40 to emit light at that color temperature and dimming ratio.

[0144] When the user touches any of the panels 251a to 251h, the corresponding control signal is transmitted to the lighting device 4 to be controlled. The lighting device 4 that receives the control signal causes the light source unit 40 to emit light at a color temperature and dimming ratio corresponding to the control signal. At this time, the dimming ratio and color temperature designated by the user are not stored, and the state is a preview state in which the dimming ratio and color temperature are temporarily changed to the designated dimming ratio and color temperature. When the confirm button 253b is touched in the preview state, the designated dimming ratio and color temperature are stored. When the cancel button 253a is touched, the dimming ratio and color temperature are returned to the stored previous preview state, and the display of the GUI 250 disappears, returning to the original display of the GUI 200.

[0145] Furthermore, when the user touches any of the panels 251a to 251h, that panel is selected by the user, and the color of the panel changes by darkening or the like to clearly indicate which panel has been selected.

[0146] When the selected panel is touched again in the selected state, the selection is cancelled. Each time the user touches the panel, the selected state and the cancelled state are toggled.

[0147] The panel 251a includes a color display section 251aa, a dimming ratio section 251ab, and a color description section 251ac.

[0148] Color display section 251aa is an image in which the color temperature of light emitted by light source section 40 is indicated as a numerical value within a rectangular area when panel 251a is touched, and the image is painted in a color that allows the user to intuitively grasp the color temperature.

[0149] The dimming rate section 251ab indicates the dimming rate when the light source section 40 emits light when the panel 251a is touched.

[0150] The color explanation section 251ac is a section that describes the color displayed in the color display section 251aa by comparing it to an object or phenomenon of a similar color so that a person can easily recognize it.

[0151] The panels 251b to 251h each have the same configuration as the panel 251a.

[0152] <1.2.7. Color Adjustment GUI280> The color fine-tuning GUI 280 is a GUI for fine-tuning the color of the currently specified color, and allows changing the Duv (color deviation) of the color indicated by the cursor 201a of the standard specification GUI 200. Here, Duv indicates how far up or down the color is from the blackbody radiation locus, and if the color deviation is shifted upward (plus), the light color appears greenish, and if it is shifted downward (minus), the light color appears reddish-purple.

[0153] The GUI 280 includes color buttons 281a to 281e, a cancel button 283b, and a enter button 283a.

[0154] The color tone buttons 281a to 281h correspond to a control signal that increases Duv by 6, a control signal that increases Duv by 3, a control signal that does not increase or decrease Duv, a control signal that decreases Duv by 3, and a control signal that decreases Duv by 6, respectively.

[0155] When the user touches any of the panels 281a-281h, the color Duv of the light emitted by the lighting fixtures 4 changes according to the control signal associated with the touched panel, but this Duv is not stored. When the enter button 283a is touched, the Duv is stored, and when the cancel button 283b is touched, the light emission returns to the originally stored Duv.

[0156] When the user touches an area on the touch panel 65 other than the area where the color adjustment GUI 280 is displayed, the display of the GUI 280 disappears and the display returns to the original GUI 200.

[0157] It should be noted that although the color fine-tuning GUI 280 is to be called from the normal specification GUI 200, this is not limiting, and it may be possible to call from other GUIs that select chromaticity, such as the rendering specification GUI 130.

[0158] <3. Modifications> Although the embodiment of the lighting device according to the present invention has been described above, the description of the above embodiment should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims, not by the above embodiment. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope equivalent to the claims. The exemplified lighting device can be modified as follows, and the present invention is of course not limited to the lighting device as shown in the above embodiment.

[0159] (1) In the above-described embodiment, switching between the display of GUI130 with the presentation specifications and the display of GUI200 with the normal presentation specifications was performed using the normal presentation switching button 132a provided on GUI130 and the normal presentation switching button 202a provided on GUI200, but this is not limited to this and may be performed in other ways. For example, a selection GUI300 for selecting between the display of GUI130 and GUI200, as shown in FIG. 11, may be used.

[0160] The GUI 300 includes a normal specification selection button 301a, a performance specification selection button 301b, a cancel button 303a, a normal specification GUI reduced image 305a, and a performance specification GUI reduced image 305b.

[0161] When the user touches the normal specification selection button 301a, the GUI 200 is displayed. When the user touches the performance specification selection button 301b, the GUI 130 is displayed. The cancel button 303a is a button for erasing the GUI 300 display.

[0162] The normal specification GUI reduced image 305a is a reduced image of the normal specification GUI 130, and is an image for allowing the user to recognize what kind of GUI will be displayed when the normal specification selection button 301a is touched.

[0163] The reduced-size performance specification GUI image 305b is a reduced-size image of the performance specification GUI 200, and is an image for allowing the user to recognize what kind of GUI will be displayed when the performance specification selection button 301b is touched.

[0164] (2) In the above embodiment, the lighting system 1 has a plurality of lighting fixtures that are directly controlled by the smartphone 6. However, the lighting system 1 may have an indirect control. For example, as shown in Fig. 12, the lighting system 1 may have a configuration such as a lighting system 501 including a gateway 508 that is a control device that is always powered.

[0165] In this way, even if smartphone 6 cannot directly send control signals to lighting fixtures 4, such as when smartphone 6 is taken out and not within the communication range of lighting fixtures 4, gateway 508 can store a change schedule for dimming and color adjustment and send control signals for dimming and color adjustment to each lighting fixture 4 in accordance with the schedule, thereby dimming and adjusting the color of lighting fixture 4. When creating a change schedule to be stored in gateway 508, the user can use the GUI described above to set the chromaticity, color temperature, and dimming rate of the light emitted by lighting fixture 4 for each time period.

[0166] (3) In the above embodiment, the lighting fixture 4 may be attached to a ceiling, a wall, or under a shelf. In addition, a plurality of lighting fixtures 4 may be connected to each other.

[0167] (4) In the above-described embodiment, an LED is used as the light source, but the light source is not limited to this and may be another light source, such as an organic electroluminescence (EL) or organic LED (organic electroluminescence or organic light emitting diode), a field emission display, etc.

[0168] (5) The above-described embodiments and modifications may be partially combined.

[0169] <4. Extraction of invention> The configuration of a lighting fixture according to one embodiment of the present invention, as well as modifications and effects thereof, will be described below.

[0170] (1) A lighting control device according to one embodiment of the present invention is a lighting control device that displays on a touch panel a graphical user interface for controlling a lighting device having LED packages of multiple colors, and the graphical user interface can be switched between a normal graphical user interface for changing the chromaticity of the light emitted by the lighting device along the blackbody radiation locus and a graphical user interface with a presentation specification that makes it possible to select chromaticities that do not follow the blackbody radiation locus in addition to chromaticities that follow the blackbody radiation locus, and the graphical user interface with the presentation specification has a plurality of color setting buttons that correspond to a predetermined number of chromaticities when the lighting device emits light and that, when touched by a user, cause light to be emitted at the corresponding chromaticity, and each of the color setting buttons is at least partially colored in a color that imitates the corresponding chromaticity.

[0171] With the above-mentioned configuration, the lighting control device of the present invention has a graphical user interface for performance specifications in which the number of chromaticities available for selection is limited to a predetermined number, and each chromaticity can be recognized by an image of a color that imitates the chromaticity, allowing the user to easily select the desired chromaticity.

[0172] (2) Furthermore, the three color LED packages may be a red LED package, a yellow-white LED package, and a blue-white LED package, and in the graphical user interface of the performance specifications, the multiple color setting buttons may be arranged in a rectangle, and at the three corners of the rectangle, a color setting button for causing only the red LED package to emit light, a color setting button for causing only the yellow-white LED package to emit light, and a color setting button for causing only the blue-white LED package to emit light may be arranged.

[0173] With this configuration, instead of having the user select the chromaticity within a triangle connecting the color coordinates of the three-color LED packages on a chromaticity diagram, the user can simply select one of the color setting buttons arranged in a rectangle, which is easy for the user to understand and allows the user to easily select the desired chromaticity.

[0174] (3) Furthermore, color setting buttons for causing only the red LED package and the yellow-white LED package to emit light at the same dimming rate may be provided at corners other than the three corners of the rectangle.

[0175] With this configuration, the chromaticity when the red LED package and the yellow-white LED package are made to emit light at the same dimming rate, which allows the user to easily recognize differences in chromaticity, is included in the options, making it easier for the user to select the desired chromaticity.

[0176] (4) In addition, in the standard specification graphical user interface and the performance specification graphical user interface, a graphical user interface showing multiple options for the value to be changed for changing the value of the color deviation related to the light emission of the lighting device may be displayed.

[0177] According to this configuration, the chromaticity once selected by the user can be easily brought closer to a desired one.

[0178] (5) A lighting system according to one embodiment of the present invention is a lighting system including a lighting fixture and a lighting control device, wherein the lighting control device displays on a touch panel a graphical user interface for controlling a lighting fixture having a three-color LED package, and the graphical user interface is capable of switching between a normal graphical user interface for changing the chromaticity of the light emitted by the lighting fixture along the blackbody radiation locus and a graphical user interface with a presentation specification that makes it possible to select chromaticities that do not follow the blackbody radiation locus in addition to chromaticities that follow the blackbody radiation locus, and the graphical user interface with the presentation specification has a plurality of color setting buttons that correspond to a predetermined number of chromaticities when the lighting fixture emits light and that, when touched by a user, cause the lighting fixture to emit light at the corresponding chromaticity, and each of the color setting buttons is at least partially colored in a color that imitates the corresponding chromaticity.

[0179] According to this configuration, in the graphical user interface of the performance specifications, the chromaticities available for selection are narrowed down to a predetermined number, and each chromaticity can be recognized by an image of a color that imitates the chromaticity, so that the user can easily select the desired chromaticity. [Explanation of symbols]

[0180] 1,501 Lighting System 4, 4a, 4b, 4c, 4d lighting fixtures 6. Smartphones 40 Light source section 41 Light source board 42 LED packages 42a yellow white LED 42b Red LED 42c blue white LED 43 Circuit section 44 Work Management Department 44a Wireless Communication Section 44b Control section 61 Control section 62 ROM 63 RAM 64 Wireless Communication Section 65 Touch Panel 110, 120, 130, 150, 200, 250, 280, 300 GUI 131, 201 Color selection area 131a, 131b, 131c, 131d, 131h Color setting buttons 131e, 201a Cursor 132 Switching section 137, 139 Color selection section 151a-151h, 251a-251h panels 153b, 203b Confirm button 202 Switching section 205 Dimming rate selection section 207 Color temperature selection section 508 Gateway

Claims

1. A lighting control device that displays a graphical user interface on a touch panel for controlling a lighting device having a multi-color LED package, The graphical user interface includes: a panel for designating a color temperature at which the lighting device emits light; and a panel for adjusting Duv, which is displayed behind the panel for specifying the color temperature. Lighting control device.

2. The Duv value to be set is displayed on the panel for adjusting the Duv. The lighting control device according to claim 1 .

3. The value of Duv set by the panel for adjusting Duv is selected from a plurality of discrete candidates. The lighting control device according to claim 2.

Images