Information processing device, information processing method, and program

Abstract

To display arbitrary color on predetermined media such as a clock, jewelry, and a nail.SOLUTION: A mobile terminal 1 includes a user interface providing unit 31 (hereinafter referred to as a UI providing unit 31) and a color conversion control unit 32. The UI providing unit 31 provides a user with a UI for performing designation operation in which the user designates predetermined color from among a plurality of colors. The color conversion control unit 32 receives the predetermined color designated by the designation operation performed on the UI, and notifies a lighting device 2 of a color conversion system of the predetermined color.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an information processing device, an information processing method, and a program. [Background technology]

[0002] Photochromic materials are known that change their structure and color when irradiated with light. For example, a photochromic material in a transparent state changes color when irradiated with ultraviolet light. When irradiated with visible light in the colored state, the photochromic material returns to its transparent state. Techniques for writing and erasing markings using photochromic compounds have been proposed. Specifically, a writing implement using a photochromic material and a color conversion system that causes a coating film applied by the writing implement to develop and fade colors have been proposed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4294349 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional color conversion systems alone cannot display any color.

[0005] The present invention has been made in view of the above circumstances, and has as its object to make it possible to display any color on a predetermined medium. [Means for solving the problem]

[0006] In order to achieve the above object, an information processing device according to one aspect of the present invention comprises: An information processing device in which a user specifies a predetermined color to be converted when converting the color of a predetermined medium specified by the user using a color conversion system that converts the color of a medium, the information processing device comprising: a UI providing means for providing a user with a UI (User Interface) through which the user can perform a designation operation to designate the predetermined color from among a plurality of colors; a predetermined color designation means for receiving the predetermined color designated by the designation operation performed on the UI and notifying the color conversion system of the predetermined color; Equipped with. An information processing method and a program corresponding to the information processing device according to one aspect of the present invention are also provided as an information processing method and a program according to one aspect of the present invention. [Effects of the Invention]

[0007] According to the present invention, any color can be displayed on a predetermined medium. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram showing a schematic configuration of a color conversion system according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing the hardware configuration of a mobile terminal in the color conversion system of FIG. 1. [Figure 3] 3 is a block diagram showing the functional configuration of a mobile terminal having the hardware configuration of FIG. 2, the configuration of a lighting device 2, and the structure of a predetermined medium in the color conversion system of FIG. 1. FIG. [Figure 4] 4 is a diagram showing the light source and light characteristics (wavelength) of the lighting device of FIG. 3. FIG. [Figure 5] FIG. 5 is a diagram showing an outline (5) of a color conversion system according to one embodiment of the present invention. [Figure 6] FIG. 1 shows the absorption spectrum of a photochromic material after irradiation with UV light. [Figure 7] 10A and 10B are diagrams illustrating how the illumination intensities of blue, green, and red light sources are adjusted for each color. [Figure 8]FIG. 8 is a diagram showing the absorption spectrum of light absorbed by the coating layer after the color conversion layer is irradiated with visible light by adjusting the irradiation intensity as in FIG. 7. [Figure 9] FIG. 1 shows the absorption spectrum of a cyan photochromic material after color development and fading, the absorption spectrum of a coating layer, and the spectrum of sunlight on the ground. [Figure 10] FIG. 10 is a diagram showing an example in which diarylethene is used as a photochromic material for a photochromic layer that realizes cyan, magenta, and yellow. [Figure 11] FIG. 1 shows a photochromic material that exhibits yellow. [Figure 12] FIG. 1 shows a photochromic material that exhibits magenta. [Figure 13] FIG. 1 is a diagram showing a cyan-exhibiting photochromic material. [Figure 14] 4 is a flowchart showing the operation of a color conversion system having the functional configuration of FIG. 3. [Figure 15] FIG. 4 is a diagram showing an example of a color designation screen (UI) of the mobile terminal of FIG. 3. [Figure 16] FIG. 4 is a diagram showing an example of a color setting screen (UI) of the mobile terminal of FIG. 3. [Figure 17] 4 is a diagram showing a second embodiment of a color conversion system including the lighting device shown in FIG. 3. FIG. [Figure 18] 18 is a diagram showing a schematic view of a layered structure of nail polish applied to a fingernail, which is a target (predetermined medium) for color conversion by the lighting device of FIG. 17. FIG. [Figure 19] FIG. 1 is a diagram showing the absorption spectrum of a UV absorber, the spectrum of lighting for coloring a photochromic layer, and the absorption spectrum of a polymerization initiator for a visible light curable resin. [Figure 20] 10 is a flowchart showing the nail formation and color conversion process in the color conversion system of the second embodiment. [Figure 21] 4 is a diagram showing a third embodiment of a color conversion system including the lighting device shown in FIG. 3. FIG. [Figure 22]1. FIG. 4 is a diagram showing a fourth embodiment of a color conversion system including the lighting device shown in FIG. [Figure 23] 1. FIG. 5 is a diagram showing a fifth embodiment of a color conversion system including the lighting device shown in FIG. [Figure 24] 1. FIG. 6 is a diagram showing a sixth embodiment of a color conversion system including the lighting device shown in FIG. [Figure 25] 1. FIG. 9 is a diagram showing a seventh embodiment of a color conversion system including the illumination device shown in FIG. [Figure 26] 1. FIG. 4 is a diagram showing an eighth embodiment of a color conversion system including the lighting device shown in FIG. [Figure 27] FIG. 13 is a diagram showing a ninth embodiment of a color conversion system including the lighting device shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, with reference to FIG. 1, an overview of a color conversion system according to a first embodiment of the present invention will be described. FIG. 1 is a diagram showing a schematic configuration of a color conversion system according to a first embodiment of the present invention.

[0010] As shown in FIG. 1, the color conversion system according to the first embodiment of the present invention is a color conversion system that converts the color of an ornament (predetermined medium) such as a crystal 42 of a watch 4, for example.

[0011] The color conversion system is configured by connecting an illumination device 2 that illuminates the crystal 42 of the watch 4 and a mobile terminal 1 that controls the illumination device 2 via a wireless communication network such as Bluetooth. Bluetooth is a registered trademark.

[0012] The lighting device 2 is operated by, for example, a store operator, etc., to turn the power on and off, etc. The lighting device 2, which is activated by the power-on operation, is controlled by the mobile terminal 1 and irradiates ultraviolet light (UV light) or visible light onto a predetermined medium placed at a predetermined position inside the device.

[0013] Generally, ultraviolet rays have shorter wavelengths than visible light and refer to electromagnetic waves in the range of 10 to 380 nm. Wavelengths longer than 380 nm are called visible light. The region (range) of 300 nm to 380 nm can be said to be the boundary area between ultraviolet rays and visible light.

[0014] The predetermined medium may be, for example, a watch, as well as various ornaments such as nails, glasses, jewelry, contact lenses, shoes, bags, vehicles, etc. The configuration of the lighting device 2 corresponding to each ornament will be described later.

[0015] The mobile terminal 1 is managed by a store operator, etc. The mobile terminal 1 controls the light emitting operation of the lighting device 2 and executes various processes.

[0016] FIG. 2 is a block diagram showing the hardware configuration of a mobile terminal in the color conversion system of FIG.

[0017] The mobile terminal 1 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a bus 14, an input / output interface 15, an output unit 16, an input unit 17, a memory unit 18, a communication unit 19, and a drive 20.

[0018] The CPU 11 executes various processes according to a program recorded in the ROM 12 or a program loaded from the storage unit 18 into the RAM 13 . The RAM 13 also stores data and the like necessary for the CPU 11 to execute various processes.

[0019] The CPU 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output interface 15 is also connected to this bus 14. An output unit 16, an input unit 17, a memory unit 18, a communication unit 19, and a drive 20 are connected to the input / output interface 15.

[0020] The output unit 16 is composed of a display, a speaker, etc., and outputs various information as images and sounds. The input unit 17 is composed of a keyboard, a mouse, etc., and is used to input various information.

[0021] The storage unit 18 is configured with a hard disk, a DRAM (Dynamic Random Access Memory), etc., and stores various data. The communication unit 19 communicates with other devices (lighting device 2 in the example of FIG. 1) via a wireless communication network.

[0022] Removable media 21, such as a magnetic disk, optical disk, magneto-optical disk, or semiconductor memory, is appropriately loaded into the drive 20. A program read from the removable media 21 by the drive 20 is installed in the storage unit 18 as necessary. Furthermore, the removable medium 21 can also store various data stored in the storage unit 18 in the same manner as the storage unit 18.

[0023] FIG. 3 is a block diagram showing the functional configuration of a mobile terminal having the hardware configuration of FIG. 2, the configuration of the lighting device 2, and the structure of a predetermined medium in the color conversion system of FIG. As shown in FIG. 3, this color conversion system comprises an illumination device 2, a color conversion layer 60 disposed on the surface of or inside the crystal 42 of a timepiece 4 as a predetermined medium, and a mobile terminal 1. In this color conversion system, mobile terminal 1 controls the irradiation of visible light and UV light by lighting device 2, and lighting device 2 irradiates visible light and UV light onto crystal 42 of watch 4 based on control from mobile terminal 1. A color conversion layer 60 is disposed on the surface of crystal 42, and by sequentially irradiating it with UV light and visible light, the color of color conversion layer 60 changes (color develops and then fades), causing the colorless, transparent crystal 42 below color conversion layer 60 to also become colored and transparent.

[0024] First, the functional configuration of the mobile terminal 1 will be described. As shown in FIG. 3, color information, light source control information, and the like are stored in one area of ​​the storage unit 18 of the mobile terminal 1 (see also FIG. 2). The color information is information that links a color displayed on a UI (User Interface: for example, the screen of the mobile terminal 1 on which the color selection button area 151 in FIG. 15 is arranged) where the user specifies a color with light source control information.

[0025] The light source control information includes parameterized information (parameter values ​​in FIG. 16) on the applied voltages for individually driving the UV light source 55 and LED light sources 56a, 56b, and 56c of the lighting device 2 according to the color specified by the user on the UI, and information including the light emission time (number of seconds) of each light source. In FIG. 16, the preset parameter values ​​are, for example, 255 for UV, 255 for R (red), 0 for G (green), and 0 for B (blue).

[0026] In the CPU 11 of the mobile terminal 1, when the color conversion operation of the lighting device 2 is controlled, a UI providing unit 31 and a color conversion control unit 32 function.

[0027] The UI providing unit 31 provides the user with a UI (User Interface: for example, the screen of the mobile terminal 1 in FIG. 15 or 16) through which the user can perform a designation operation to designate a predetermined color from among a plurality of colors.

[0028] The screen of the mobile terminal 1 provided by the UI providing unit 31 (see FIGS. 15 and 16) includes a specified color specification area (color selection button area 151 in FIG. 15) that accepts a specification operation to specify a predetermined color (e.g., red) from among N predefined colors (e.g., eight colors), a customization specification area (customization area 161 in FIG. 16) that accepts a specification operation to specify an arbitrary color created by the user as a predetermined color, etc. In addition, the UI providing unit 31 also provides a page for the user to create a color and a screen of a sales site for selling the color created by the user to others.

[0029] The color conversion control unit 32 receives a predetermined color designated by a designation operation performed on the UI (see FIG. 15), and notifies the lighting device 2 of control information (light source control information) for converting a predetermined medium into the predetermined color. Specifically, when, for example, the "red" button is selected in the color selection button area 151 on the screen of FIG. 15, the color conversion control unit 32 expresses the color by transmitting light source control information for controlling the LED light source of each color corresponding to the "red" button to the lighting device 2.

[0030] The color conversion control unit 32 performs control to convert the windshield glass 42 into a predetermined color (predetermined color) by irradiating the windshield glass 42 (strictly speaking, the color conversion layer 60) (predetermined medium) with ultraviolet light (UV light) from the UV light source 55 of the lighting device 2 to cause the windshield glass 42 to develop a color, and then irradiating the windshield glass 42 with light source control information (conditions such as light irradiation intensity and irradiation time) required to convert the red, green, and blue visible light from each of the red, green, and blue LED light sources 56a, 56b, and 56c of the lighting device 2 into the predetermined color, thereby fading the windshield glass 42.

[0031] Specifically, the color conversion control unit 32 transmits light source control information to the lighting device 2, and in the lighting device 2, the communication unit 51 receives the light source control information transmitted from the mobile terminal 1 and passes it to the light source driving unit 52. Based on the light source control information, the light source driving unit 52 drives the UV light source 55 and the LED light sources 56a, 56b, and 56c to irradiate light from each of them.

[0032] The light source control information includes a parameter value for the applied voltage and irradiation time for each color. The parameter value for the applied voltage is divided into values ​​from 0 (minimum) to 255 (maximum) up to the maximum voltage at which the light source can be driven, and one of these values ​​is sent. The light source driver 52 applies a voltage corresponding to the parameter value to the light source, driving the light source to emit light. The irradiation time is the time for which the light source for each color irradiates light onto the medium, and is, for example, the number of seconds.

[0033] Next, the configuration of the lighting device 2 will be described. The lighting device 2 has a communication unit 51, a light source driving unit 52, a power supply unit 53, a housing for accommodating the clock 4, an ultraviolet light source (hereinafter referred to as "UV light source 55"), and LED light sources 56a, 56b, and 56c as visible light sources. In the following, when it is not necessary to distinguish between the individual LED light sources 56a, 56b, and 56c, they will be referred to as LED light source 56. The lighting device 2 has an openable and closable lid and case. A UV light source 55 and LED light sources 56a, 56b, and 56c are arranged on the back of the lid. The case contains a predetermined medium, such as a clock 4. The lighting device 2 irradiates the windshield 42 inside the case, which has a closed lid to block out light from outside, with UV light from the UV light source 55 and red, green, and blue visible light from the LED light sources 56a, 56b, and 56c, respectively.

[0034] The communication unit 51 communicates with the mobile terminal 1 to receive light source control information. The light source driving unit 52 controls the UV light source 55 and the LED light source 56 based on light source control information received from the mobile terminal 1. Specifically, the light source driving unit 52 drives each of the LED light sources 56a, 56b, and 56c individually (by individually changing the applied voltage, irradiation time, etc.) based on the light source control information. The power supply unit 53 supplies power to each part of the lighting device 2.

[0035] Although not shown in FIG. 3, the configuration may include an optical system including lenses, mirrors, masks, and the like. In this case, the mask is for forming an image on the photochromic layer 61, and is, for example, an optical mask, and is placed between the opening of the housing and the UV light source and the LED light source. The optical mask is, for example, an optical glass on which a chrome layer is patterned. Furthermore, a laser light source may be used as the visible light source in addition to an LED light source. When a laser light source is used, the illumination device 2 may be configured so that the laser light source scans the laser light at high speed without using a mask.

[0036] Crystal 42 is provided on the top surface of the body of the timepiece 4. Crystal 42 has a color conversion layer 60 on its surface (top surface). Before processing, color conversion layer 60 is colorless and transparent, allowing the dial of the timepiece 4 to be seen through. The color conversion layer 60 comprises a photochromic layer 61 disposed on the windshield 42 and a coating layer 62 disposed on the photochromic layer 61. The coating layer 62 is the top surface and is exposed to the outside, so it is exposed to all types of everyday light, including sunlight. The color conversion layer 60 is a layer that develops color or fades (bleaches) when irradiated with the UV light and visible light, and contributes to color conversion. After achieving a desired color, the color conversion layer 60 can be exposed to natural light, particularly sunlight, including visible and UV light. Fading caused by visible light of the same intensity as sunlight is suppressed for a certain period of time, such as one to two days (or about one week, depending on the medium and the environment in which the medium is used).

[0037] The coating layer 62 has a UV light absorption wavelength range (e.g., 325 nm to 430 nm) and transmits UV light for color development (e.g., wavelength 325 nm). The edge of the absorption band of the coating layer 62 and the wavelength of the UV light for color development coincide with 325 nm. Specifically, the coating layer 62 absorbs UV light in a predetermined ultraviolet wavelength range. For example, it absorbs UV light in a wavelength range from ultraviolet wavelength Am to ultraviolet wavelength Bnm. For example, Am is 325 nm and Bnm is 430 nm. Since the absorption at the absorption edge of the coating layer 62 is not 100%, at least a portion of the UV light for color development passes through the coating layer 62 .

[0038] On the other hand, coating layer 62 absorbs UV light contained in sunlight (325 nm or longer at the Earth's surface). The display area that has undergone color development and fading is not irradiated with at least most of the UV light (e.g., 325 nm to 430 nm) that promotes color development due to sunlight, and the display color of color conversion layer 60 is maintained.

[0039] This coating layer 62 absorbs UV light in that wavelength range, preventing UV light in that wavelength range from reaching the photochromic layer 61 and suppressing color development. As described above, even when the color conversion layer 60 is exposed to sunlight, color development and fading are suppressed, and the color realized in the color conversion layer 60 is maintained.

[0040] The photochromic layer 61 is transparent before being irradiated with UV light. The photochromic layer 61 contains three types of photochromic materials that, when irradiated with UV light, develop a cyan color by absorbing red light, a magenta color by absorbing green light, and a yellow color by absorbing blue light.

[0041] The photochromic material fades to transparent when irradiated with visible light. A cyan photochromic material fades to transparent when irradiated with red light. A magenta photochromic material fades to transparent when irradiated with green light. A yellow photochromic material fades to transparent when irradiated with blue light. However, in any photochromic material, fading due to visible light with an intensity similar to that of sunlight can be suppressed for a certain period of time. The photochromic material can absorb light with a wavelength shorter than the ultraviolet wavelength Am, and develops color when irradiated with light with a wavelength shorter than the ultraviolet wavelength Am.

[0042] The photochromic layer 61 contains three types of photochromic materials that develop yellow, magenta, and cyan colors when irradiated with UV light and visible light from the lighting device 2, respectively. The photochromic layer 61 is transparent before being irradiated with UV light. The photochromic layer 61 contains three types of photochromic materials that, when irradiated with UV light, develop a cyan color by absorbing red light, a magenta color by absorbing green light, and a yellow color by absorbing blue light.

[0043] The photochromic material fades to a transparent state when irradiated with visible light. A cyan photochromic material fades to a transparent state when irradiated with red light. A magenta photochromic material fades to a transparent state when irradiated with green light. A yellow photochromic material fades to a transparent state when irradiated with blue light. However, for all photochromic materials, fading due to visible light of an intensity similar to that of sunlight is suppressed for a certain period of time.

[0044] When UV light containing light with a wavelength shorter than the ultraviolet wavelength Am is irradiated, the UV light is not absorbed by the coating layer 62. As a result, the UV light reaches the photochromic layer 61. The photochromic layer 61 reacts to the UV light and changes to cyan, magenta, and yellow. The cyan, magenta, and yellow colors are mixed to achieve black or an achromatic color. Although black or an achromatic color is used, it does not necessarily have to be completely black or completely achromatic.

[0045] Red, green, and blue visible light emitted from the lighting device 2 is irradiated onto the color conversion layer 60 that has developed a black color based on a predetermined irradiation intensity, irradiation intensity ratio for each color, and irradiation time. Specifically, the cyan, magenta, and yellow colors can be faded by adjusting the irradiation intensities of red, green, and blue visible light, the ratio of the irradiation intensities for each color, and the irradiation time. By varying the degree of fading of each color, any color can be realized.

[0046] The coating layer 62 transmits visible light, so that red, green, and blue light reach the photochromic layer 61. To output visible light in a narrow band for each color, an LED with a narrow half-width of, for example, 5 to 10 nm is used as the visible light source.

[0047] For example, red light will selectively bleach cyan colored photochromic materials, and will bleach magenta and yellow to a lesser extent than will bleach cyan. Green light selectively bleaches the magenta colored photochromic material, and bleaches the cyan and yellow colors to a lesser extent than the magenta color. Blue light selectively bleaches the yellow colored photochromic material, and bleaches the cyan and magenta colors to a lesser extent than the yellow color.

[0048] In the example of the timepiece 4 shown here, the photochromic layer 61 is disposed on top of the crystal 42, but the photochromic layer 61 may also be included inside the crystal 42.

[0049] The operating principle of this color conversion system will be described below with reference to FIGS. First, the light source and the characteristics (wavelength) of the light will be described with reference to FIG. FIG. 4 is a diagram showing the light source and light characteristics (wavelength) of the lighting device of FIG. The UV light source 55 shown in FIG. 3 is a light source that irradiates ultraviolet light, and may be, for example, a high-pressure mercury lamp, a low-pressure mercury lamp, an ultraviolet LED, or an ultraviolet laser. The UV light emitted by the UV light source 55 includes, for example, UV light 71 with a wavelength of 325 nm. When an ultraviolet LED is used as the UV light source 55, the ultraviolet LED emits UV light 71 (see FIG. 4) having a central wavelength of 325 nm ±5 nm to ±10 nm. This UV light 71 has a half-width of ±5 nm to ±10 nm.

[0050] The light source of visible light shown in FIG. 3 includes an LED light source 56a that emits green light, an LED light source 56b that emits blue light, and an LED light source 56c that emits red light. The LED light source 56a emits blue visible light 74 (see FIG. 4) having a half-width of 5 nm to 10 nm and a central wavelength of 430 nm±5 nm to ±10 nm, for example. The LED light source 56b emits green visible light 73 (see FIG. 4) having a half-width of 5 nm to 10 nm and a central wavelength of 525 nm±5 nm to ±10 nm, for example. The red light emitting LED light source 56c emits visible light 72 (see FIG. 4) with a half width of 5 nm to 10 nm and a central wavelength of 650 nm±5 nm to ±10 nm, for example. The wavelength and half width are not limited to those mentioned above, and may be appropriately changed in design.

[0051] FIG. 5 is a diagram showing the absorption spectrum of a photochromic material before UV light irradiation and the spectrum of the irradiated UV light. FIG. 6 shows the absorption spectrum of the photochromic material after irradiation with UV light. FIG. 7 is a diagram showing how the illumination intensities of the blue, green, and red light sources are adjusted for each color. FIG. 8 is a diagram showing the absorption spectrum of the coating layer after the color conversion layer is irradiated with visible light with the irradiation intensity adjusted as in FIG. Before UV light irradiation, the photochromic layer 61 uses, for example, diarylethene as a photochromic material. As shown in Fig. 5, the photochromic material has an absorption spectrum 76 only in the UV light region and is transparent. In contrast, the UV light irradiated onto the photochromic layer 61 from the UV light source 55 has spectrum 71 in Fig. 5.

[0052] For example, if three types of photochromic materials that develop yellow, magenta, and cyan colors are used, the photochromic material that develops yellow has an absorption band in the blue wavelength range, the photochromic material that develops magenta has an absorption band in the green wavelength range, and the photochromic material that develops cyan has an absorption band in the red wavelength range.

[0053] Therefore, when three types of photochromic materials that develop colors yellow, magenta, and cyan are used, the photochromic materials will develop colors yellow, magenta, and cyan after irradiation with UV light, turning the material black overall, as shown in Figure 6. Note that the graph in Figure 6 shows a simplified absorption spectrum of the three colors yellow, magenta, and cyan, but it is also possible to select materials that are more complex and have narrower or wider half-widths.

[0054] When visible light for bleaching is emitted from, for example, an LED light source 56 in accordance with the absorption band of each photochromic material, blue light with a center wavelength of 430 nm and a half-width of 10 nm is emitted from the blue LED, as shown in FIG. 7. The blue light is absorbed by the yellow photochromic material, causing the yellow photochromic material to bleach. The green light is absorbed by the magenta photochromic material. The magenta photochromic material then fades, and the red light is absorbed by the cyan photochromic material. The cyan photochromic material then fades. By adjusting the irradiation intensity and irradiation time, the degree of fading of each color can be changed, as shown in Figure 7. In the example of Figure 7, the order is blue LED intensity > red LED intensity > green LED intensity, and in this case, yellow fading > cyan fading > magenta fading.

[0055] The absorption spectrum of color conversion layer 60 after being irradiated with visible light at the irradiation intensity shown in Figure 7 is as shown in Figure 8. The order of absorption of green, red, and blue by color conversion layer 60 is green absorption > red absorption > blue absorption. As a result, the displayed color is blue, followed by red, and least green, and as a result of absorbing each of the three colors, a blue-purple display is realized.

[0056] FIG. 9 shows the absorption spectrum of a cyan photochromic material after color development and fading, the absorption spectrum of a coating layer, and the spectrum of sunlight on the ground.

[0057] The absorption spectrum of the cyan photochromic material after color development and fading is absorption spectrum 78 shown in Figure 9. The absorption spectrum of the coating layer 62 is absorption spectrum 75. The spectrum of sunlight at the Earth's surface is spectrum 79.

[0058] The absorption spectrum of the cyan-exhibiting photochromic material after coloring and fading has an absorber in the ultraviolet region because irradiation with visible light (red light) causes a portion of the cyan-exhibiting photochromic material to return to the state it was in before UV light irradiation.

[0059] The sunlight on the Earth's surface contains UV light, which overlaps with the absorption band (325 nm to 430 nm) of the cyan photochromic material, which is caused by the structure of the material before UV light exposure. In other words, exposure to the UV light contained in sunlight can cause the photochromic material to develop a color.

[0060] Coating layer 62 eliminates this possibility. The reason is that the coating layer 62 absorbs light from 325 nm to 430 nm, which is ultraviolet light in sunlight and can have adverse effects. Due to absorption by the coating layer 62, ultraviolet rays from sunlight do not reach the photochromic layer 61, and the state of the photochromic layer 61 is maintained. As a result, the photochromic layer 61 that has been colored and faded maintains its state, and the displayed color achieved by the coloring and fading is maintained.

[0061] Here, returning to FIG. 4, additional explanation will be given regarding the UV light for color development. Since the UV light for color development is irradiated onto the coating film on which the coating layer 62 is formed, it is preferable that the UV light is not absorbed by the coating layer 62 .

[0062] However, simply shortening the wavelength of UV light results in a high energy value, which can have adverse effects on, for example, the skin. For this reason, it is preferable that the wavelength of the UV light for color development be as long as possible. Furthermore, it is preferable that the wavelength of the UV light for color development be set close to or partially overlapping the short wavelength side of the absorption band of the coating layer 62.

[0063] 4, the coating layer 62 absorbs UV light in the range of 325 nm to 430 nm, and the UV light for color development has a wavelength of 325 nm, which is the same wavelength as the absorption edge wavelength of the coating layer 62. Although a portion of the UV light for color development is absorbed by the coating layer 62, by providing sufficient intensity for color development, the UV light for color development can cause the photochromic layer 61 to develop color without any problems.

[0064] FIG. 10 is a diagram showing an example in which diarylethene is used as the photochromic material of the photochromic layer that realizes cyan, magenta, and yellow. As the photochromic material for the photochromic layer realizing cyan, magenta, and yellow, for example, diarylethene shown in FIG. 10 may be used.

[0065] FIG. 11 shows a photochromic material that exhibits yellow. As the photochromic material that exhibits yellow, the material shown in FIG. 11 can be used.

[0066] FIG. 12 shows a photochromic material that exhibits magenta. As a photochromic material that exhibits magenta, the material shown in FIG. 12 can be used.

[0067] FIG. 13 shows a photochromic material that exhibits cyan. As the cyan photochromic material, the one shown in FIG. 13 can be used. The photochromic material shown here is merely an example, and the photochromic material is not limited to the above, and various colors can be appropriately designed by adding various functional groups to diarylethene. Furthermore, the photochromic material is not limited to diarylethene, and any known photochromic material can be used.

[0068] Here, the operation of the color conversion system having the functional configuration of FIG. 3 will be described with reference to FIGS. FIG. 14 is a flowchart showing the operation of the color conversion system having the functional configuration of FIG. FIG. 15 is a diagram showing an example of a color designation screen (UI) of the mobile terminal of FIG. FIG. 16 is a diagram showing an example of a color setting screen (UI) of the mobile terminal of FIG.

[0069] When causing lighting device 2 housing clock 4 to perform a color conversion operation, the user can display the color designation screen shown in Fig. 15 by performing a display operation on mobile terminal 1 to display the color designation screen. The color designation screen, color setting screen, etc. displayed on mobile terminal 1 are called UI (User Interface).

[0070] One method for displaying a color specification screen on the mobile terminal 1 is to install an application program (hereinafter referred to as "app") for color conversion processing on the mobile terminal 1 in advance, and then click on the icon of the color conversion app displayed on the top screen of the mobile terminal 1 to launch the app and display the color specification screen.

[0071] Alternatively, a second method may be used in which the browser of the mobile terminal 1 accesses a website of a color conversion service provided by a service provider and a color specification screen provided by the website is displayed.

[0072] 15 has a color selection button area 151. Color selection buttons such as UV, red, yellow, purple, magenta, orange, blue, green, and gray are arranged in the color selection button area 151. The user can specify the color of the crystal 42 (see FIG. 1) of the watch 4 by selecting a desired color from the buttons in the color selection button area 151 and clicking that button.

[0073] If the desired color is not available on the color specification screen of FIG. 15, or if you want to create a different color from the default color, click the "Color Settings" button on the color specification screen of FIG. 15 to display the color setting screen shown in FIG. 16.

[0074] 16 has a customization area 161. The customization area 161 is a customization instruction area that accepts a designation operation in which a user customizes and generates an arbitrary color and designates the generated color as a predetermined color. Specifically, the customization area 161 is provided with an input window 162 for changing the parameter values ​​of UV, R (red), G (green), and B (blue), an input window 163 for specifying the irradiation time, etc. In addition, there is also an input field for specifying the color ratio of the three colors. In the input window 162, a parameter value for the illumination intensity (voltage value applied to each of the red, green, and blue light sources) can be set between 0 and 255. 0 is the minimum value and 255 is the maximum value.

[0075] As shown in FIG. 14, in step S101, when an operation is performed on the user's mobile terminal 1 to specify a desired color (e.g., red) from among N predefined colors (e.g., eight colors) on the color specification screen, the color specification is accepted by the UI providing unit 31.

[0076] When a color is specified, the lighting device 2 is controlled by the mobile terminal 1 to start lighting operation. In this case, in step S102, first, UV light is emitted from the UV light source 55, causing the color conversion layer 60 on the surface of the crystal 42 of the timepiece 4 to develop color.

[0077] Specifically, when a color is specified on the color specification screen of the mobile terminal 1, the UI providing unit 31 accepts the color specification, and passes the color information to the color conversion control unit 32. Based on the color information, the color conversion control unit 32 reads out corresponding light source control information from the storage unit 18 and transmits the light source control information to the lighting device 2. The light source control information includes parameter values ​​for the irradiation intensity and irradiation time of UV light and visible light of each color. In addition, the light source control information may also include the irradiation ratio of each color, etc., as necessary.

[0078] In the lighting device 2, the communication unit 51 receives the light source control information transmitted from the mobile terminal 1 and passes it to the light source driving unit 52. Based on the light source control information, the light source driving unit 52 drives the UV light source 55 to irradiate UV light onto the watch 4. At this time, the UV light is irradiated for an irradiation intensity and irradiation time corresponding to the parameter values ​​included in the light source control information.

[0079] Next, in step S103, the light source driving unit 52 irradiates the red, green, and blue visible light from each of the red, green, and blue LED light sources 56a, 56b, and 56c of the lighting device 2 under the conditions required to convert the red, green, and blue visible light into a predetermined color (irradiation intensity and irradiation time corresponding to the parameter values ​​of each of the three LED light sources 56 included in the light source control information), thereby fading the color conversion layer 60 of the crystal 42 of the watch 4, thereby performing control to convert the color conversion layer 60 of the crystal 42 of the watch 4 into the color specified by the user.

[0080] Here, a business model using the color conversion system of the first embodiment will be described. In the above embodiment, an example was described in which a three-layer color conversion layer 60 is formed on the surface of the crystal 42 of the timepiece 4, but it is also possible to change the color of the dial of the timepiece 4 by using a UV-reactive transparent pigment. The timepiece 4 has a three-layer structure, with the top layer being a glass layer with UV-blocking properties, the second layer being a dial layer containing a UV-reactive pigment, and the third layer being the substrate layer of the timepiece 4.

[0081] Specifically, the company provides a watch 4 with a three-layer color conversion layer. The top layer is the crystal glass of the watch 4, which has UV protection and is either kneaded into or coated with a liquid that blocks specific UV light. The second layer is the dial, which is coated with a colorless, transparent UV-reactive pigment. The bottom, third layer, is the watch substrate, which supports the dial. The user selects a color via an app on the mobile device 1, and changes the color of the dial and second hand by irradiating them with UV light using the lighting device 2 (a dedicated UV irradiation device).

[0082] The business model involves providing a service that changes the color of the dial of a watch 4 using a special UV-reactive transparent pigment. In this case, the service provider sells colors to users through a mobile application, and the users select and purchase a color through the mobile application. The service provider then temporarily changes the color of the dial and second hand to the color purchased by the user using a color conversion system including a lighting device 2 (UV irradiation device). The changed color of the dial and second hand is maintained for 24 hours to one week, after which they return to transparency.

[0083] The service will sell watches 4 online and / or at retail stores, and will also introduce a subscription model. Regular updates of new designs and colors will allow users to enjoy a constantly changing experience. Sales of limited edition and collaboration models, in particular, will enable diversification of revenue. This service can provide a new experience to consumers who value fashion and individuality.

[0084] Marketing strategies include partnering with influencers and promoting the service at events to increase market penetration, and user-participation design contests and limited-time campaigns to strengthen brand engagement.

[0085] As described above, according to the first embodiment, the user can freely change the color of the crystal 42, dial, second hand, etc. of the watch. In other words, the user can change the decoration of the watch 4 according to their taste. This makes it possible to customize the watch to suit, for example, a specific event or everyday fashion. In addition, the UV protection function prevents deterioration of the watch's internal components, allowing for long-term use.

[0086] This color conversion system also applies a transparent, colorless UV-reactive pigment to the watch face and second hand, allowing the user's selected color to temporarily change when exposed to UV light. The color conversion layer of the watch 4 has a three-layer structure, with the top glass layer equipped with UV protection to prevent the harmful effects of UV light. The second layer contains a UV-reactive pigment, and the color selected by the user through an app on the mobile device 1 is displayed on the watch face and second hand when exposed to UV and LED light from the lighting device 2 (a dedicated UV irradiation device). The displayed color is maintained for 24 hours to one week, after which the watch returns to transparency, allowing it to be used in a variety of situations.

[0087] The business will have a product line and a target market. It is possible to develop a product line that covers a wide range of categories, such as fashion watches, business watches, and sports watches. The target market is diverse, ranging from fashion-conscious young people to business people.

[0088] The sales channels and pricing strategy are expected to be sold through the company's own online store and major online marketplaces. Retail sales will be primarily at select shops and watch specialty stores. Furthermore, profits can be maximized by setting premium prices and selling limited edition models.

[0089] A subscription service could offer new watch face designs and colors on a regular basis for a monthly fee, allowing for special designs to be tailored to specific seasons or events, increasing customer loyalty.

[0090] The service described above provides a new experience for users to customize the color of their Watch 4 dial, offering a wide range of options to suit their fashion and lifestyle. This is expected to provide users with a new way to express their individuality and increase their competitiveness in the market.

[0091] Next, a second embodiment (example of nails) of a color conversion system including the lighting device shown in FIG. 3 will be described with reference to FIGS. First, a color conversion system including an illumination device according to the second embodiment will be described with reference to FIG. FIG. 17 is a diagram showing a second embodiment of a color conversion system including the lighting device shown in FIG. The lighting device 2 of the second embodiment performs color conversion processing on nail polish that is applied to or attached to the fingernails of a person's fingers. In the following embodiments, the color conversion layer applied to the medium will be either the two-layer color conversion layer 60 shown in Fig. 3 or the three-layer nail 401 type shown in Fig. 18, depending on whether the object to be colored is transparent or not. The mobile terminal 1 is the same as that shown in Figs. 1 to 3 above, and a description thereof will be omitted.

[0092] 17, lighting device 2 of the second embodiment has a hand rest 172 disposed on the side of the device body. In addition, a plurality of pins 173 are arranged in a comb-like pattern at predetermined intervals in an opening provided on the side of the device body where hand rest 172 is disposed. The pins 173 are for inserting fingers 181 into the gaps between the pins 173, that is, for fixing the depth of the fingers 181 inside the case (the position of the fingers). This also fixes the position of the nails 182 when the fingers are spread apart.

[0093] In this lighting device 2, a light source (UV light source 55 or LED light source 56) is placed inside the case above the position of each nail 182, and the position of the nail 182 is automatically fixed by simply inserting a person's finger into the gap between the pins 173 (without having to move the hand to align it), so that light from the light source is evenly irradiated onto each nail 182, and the nail 401 placed on the surface of the nail 182 can be colored.

[0094] Here, the nail 401 will be described with reference to FIG. Fig. 18 is a diagram showing a schematic diagram of a layered structure of nail applied to a fingernail that is the target (predetermined medium) of color conversion by the lighting device of Fig. 17. Fig. 19 is a diagram showing the absorption spectrum of a UV absorber, the spectrum of lighting for coloring a photochromic layer, and the absorption spectrum of a polymerization initiator of a visible light curable resin. 18, when the predetermined medium is, for example, a nail 401 to be applied to a nail 182 of a human finger 181, it has a three-layer structure in which a base layer 63, a photochromic layer 61, and a coating layer 64 are laminated in this order from the side closest to the nail 182, as shown in FIG. 18. That is, in this second embodiment, the base layer 63 is disposed between the photochromic layer 61 and the nail 182, and the nail 401 itself functions as a color conversion layer.

[0095] The base layer 63 is a white coating film made primarily of, for example, ultraviolet curing resin. The base layer 63 shields the color of the nail 182 (the object to be coated) and prevents the color of the photochromic layer 61 from mixing with the color of the surface of the nail 182. Since the nail 182 is almost pink, by disposing the base layer 63 between the color (pink) of the nail 182 and the photochromic layer 61, it is possible to prevent the pink color of the nail 182 from mixing with the color of the photochromic layer 61.

[0096] The ultraviolet curable resin may be, for example, an acrylic resin. The acrylic resin contains a polymerization initiator that absorbs UV light having at least one of the wavelengths of 365 nm and 405 nm. A commercially available polymerization initiator may be used as the polymerization initiator.

[0097] The polymerization initiator is excited by the absorbed light, undergoes intramolecular cleavage to generate radicals, which react with the double bonds of the acrylic resin to initiate polymerization. The base layer 63 also has the effect of improving adhesion between the nail 401 and the nail 182.

[0098] The photochromic layer 61 is mainly made of an ultraviolet curable resin and contains a photochromic material. The curable resin is, for example, an acrylic resin, similar to the base layer 63. The acrylic resin contains, for example, a polymerization initiator that absorbs UV light having a wavelength of at least one of 365 nm and 405 nm.

[0099] As the polymerization initiator, a commercially available polymerization initiator can be used. As the photochromic material, for example, diarylethene shown in Figure 10 is used.

[0100] The photochromic layer 61 is mainly made of an ultraviolet curable resin, which has a solubility parameter similar to that of the photochromic material, for example, within a difference of 20%, before being irradiated with UV light.

[0101] This ensures that the UV-curable resin and the photochromic material are compatible and do not separate from each other. The photochromic layer 61 is formed by applying a UV-curable resin containing a photochromic material onto the base layer 63 and then irradiating it with UV light having a wavelength of 365 nm.

[0102] The coating layer 64 is a UV light absorbing layer that absorbs UV light in a predetermined wavelength range of ultraviolet light, for example, 325 nm to 430 nm as shown in FIG.

[0103] The coating layer 64 contains, for example, a pigment that absorbs UV light, an organic substance such as a stilbene derivative, etc. The coating layer 64 contains various types of UV absorbers. From the various types of UV absorbers, it is possible to select an appropriate material as the UV absorber (to be contained in the coating layer 64) that is suitable for the medium.

[0104] The photochromic material has an absorption spectrum 76 before irradiation with UV light, as described in Figure 4, for example, and therefore develops color when irradiated with UV light that matches the absorption spectrum among the light that has passed through the coating layer 64.

[0105] A portion of the UV light (for example, ultraviolet light having a wavelength of 325 nm to 430 nm) emitted from the lighting device 2 is absorbed by the coating layer 64. Light with a wavelength shorter than 325 nm passes through the coating layer 64 and is absorbed by the photochromic material of the underlying photochromic layer 61, so that when irradiated with light with a wavelength shorter than 325 nm, the photochromic layer 61 develops color. For example, diarylethene is used as the photochromic material.

[0106] The coating layer 64 shown here contains a photocurable resin, a UV absorber, and a polymerization initiator. The photocurable resin used in the coating layer 64 is, for example, an acrylic resin. The UV absorber is, for example, a stilbene derivative.

[0107] The UV absorber absorbs light with wavelengths of, for example, 325 nm to 430 nm, as shown by line 191 in the graph of Fig. 19. A UV absorber with such properties can be obtained by appropriately selecting a material commercially available from a film manufacturer or chemical manufacturer as an absorber of a specific ultraviolet wavelength.

[0108] The polymerization initiator contained in the coating layer 64 not only absorbs UV light having at least one of the wavelengths of 365 nm and 405 nm described above, but also has an absorption edge in the visible light region (longer wavelength side) of wavelengths of 430 nm or more, which is outside the light absorption region of the above UV absorbent, as shown by line 192 in the graph shown in Fig. 19. For this reason, the photocurable resin is cured by visible light, and is one of the photocurable resins generally referred to as visible light curable resins. Note that line 193 in the graph shown in Fig. 19 represents the spectrum of sunlight on the earth's surface. Line 194 in the same figure represents the illumination spectrum for coloring the photochromic layer 61, and has an absorption edge on the short wavelength side of the wavelength band (line 191 in Fig. 19) absorbed by the UV absorber.

[0109] The coating layer 64 is cured by irradiating a mixture of a photocurable resin, a UV absorber, and a polymerization initiator with light that cleaves the polymerization initiator. The absorption edge of the polymerization initiator is in the blue region, for example, at 450 nm, and its light absorption is also lower than in other wavelength regions.

[0110] The coating layer 64 has the ability to absorb ultraviolet light, so it is cured with light having a wavelength of, for example, 430 nm to 450 nm. For example, curing with LED light having a wavelength of 440 to 450 nm is preferred. To prevent inhibition of polymerization initiation by oxygen and to promote curing, it is preferable to perform polymerization by irradiating light in a nitrogen atmosphere.

[0111] Here, it is preferable to also irradiate with UV light having a wavelength of at least one of 365 nm and 405 nm, which may seem contradictory since the coating layer 64 contains an ultraviolet absorber that absorbs light of this wavelength.

[0112] However, it is effective in curing the surface and the portion close to the surface of the coating layer 64. In the vicinity of the surface of the coating layer 64, UV light having at least one of the wavelengths of 365 nm and 405 nm that is not completely absorbed by the UV absorber is irradiated onto the polymerization initiator. Therefore, the polymerization initiator is cleaved by UV light having at least one of the wavelengths of 365 nm and 405 nm.

[0113] Furthermore, compared to visible light, UV light has a higher energy level and is more efficient at cleaving the polymerization initiator, so UV light having a wavelength of at least one of 365 nm and 405 nm is effective for the portion of the coating layer 64 close to the surface.

[0114] Polymerization does not proceed easily on the surface of the coating layer 64 because oxygen in the air inhibits cleavage. Curing of the surface of the coating layer 64 can be promoted by irradiating it with UV light having at least one of the wavelengths of 365 nm and 405 nm.

[0115] The relationship between the optical properties of each of the above materials will now be summarized. It is important for the UV absorber to absorb ultraviolet rays from sunlight, for example, absorbing light from 325 nm to 430 nm. The photochromic material becomes colored when irradiated with light in a wavelength range shorter than the absorption wavelength band of the above UV absorber, for example, UV light with a wavelength of 325 nm.

[0116] On the other hand, as described above, the absorption edge of the polymerization initiator in the coating layer 64 includes light in a wavelength range longer than the absorption wavelength band of the UV absorber, for example, wavelengths from 440 nm to 450 nm. That is, with respect to the absorption wavelength band of the UV absorber, the photochromic material has an absorption range on the short wavelength side, and the polymerization initiator in the coating layer has an absorption range on the long wavelength side.

[0117] 19, line 193 represents the spectrum of sunlight on the earth's surface, and line 194 represents the spectrum of the lighting for coloring the photochromic layer 61.

[0118] Next, the nail formation and color conversion process in the second embodiment will be described with reference to FIG. FIG. 20 is a flowchart showing the nail formation and color conversion process in the color conversion system of the second embodiment. <Nail formation process>

[0119] In this case, first, in step S201, an ultraviolet curable resin that will be the foundation of the base layer 63 is applied to the surface of the nail 182.

[0120] Next, in step S202, the ultraviolet curable resin is cured by irradiating it with UV light having at least one of wavelengths of 365 nm and 405 nm, thereby forming the base layer 63.

[0121] Next, in step S203, as the photochromic layer 61, an ultraviolet curable resin to which a photochromic material has been added is applied onto the base layer 63 (ultraviolet curable resin).

[0122] Then, in step S204, the ultraviolet curable resin is cured by irradiating it with UV light having at least one of wavelengths of 365 nm and 405 nm, thereby forming the photochromic layer 61.

[0123] At this time, the photochromic material contained in the photochromic layer 61 reacts to the UV light and develops color. This color development is a secondary effect, but the amount of ultraviolet light irradiation (irradiation intensity, irradiation time, etc. of UV light) is controlled so that the color development is sufficient.

[0124] Next, in step S205, a visible light curable resin containing an ultraviolet absorber is applied to form a coating layer. The UV absorber absorbs light in the wavelength range of 325 nm to 430 nm, for example. The visible light curable resin contains a polymerization initiator that is cleaved by light in the long wavelength range that is not completely absorbed by the ultraviolet absorber, for example, light with a wavelength of 440 to 450 nm.

[0125] Next, in step S206, the visible light curable resin is cured by irradiating it with visible light having a wavelength longer than the absorption wavelength of the UV absorbent, for example, light of 440 to 450 nm, from an LED light source.

[0126] In step S206, at least one of wavelengths of 365 nm and 405 nm may be irradiated, since this can promote hardening of the surface of the coating layer 64.

[0127] By the above-described processing of steps S201 to S206, the nail 401 is formed. It should be noted that the photochromic layer 61 is colored in step 204. However, as described above, this coloring is secondary, and the photochromic layer 61 is colored in any color (such as black) that is unrelated to the intention.

[0128] <Discoloration process> In step S207, red (R), green (G), and blue (B) visible light is irradiated to match the absorption wavelengths of the photochromic material, whose molecular structure changes when irradiated with light, thereby fading and resetting the photochromic material that was colored in step S204.

[0129] Next, in step S208, the photochromic material is colored by irradiating it with UV light that colors the photochromic material, that is, UV light with a short wavelength that is not absorbed by the coating layer 64, for example, a wavelength of 325 nm.

[0130] Furthermore, in step S209, a predetermined color is achieved by selectively irradiating red (R), green (G), and blue (B) visible light with controlled intensity and duration in accordance with the absorption wavelength of the colored photochromic material, and the process ends.

[0131] As described above, according to the second embodiment, once the nail 401 is formed on the nail 182 of the person's finger 181, the color can be changed to a desired color using the lighting device 2 from then on. In particular, it becomes possible to change the color of the nail 401 to match the clothing or the environment in which the person is going (playing sports, being invited to a party, working at an office, etc.).

[0132] <Other examples> The base layer 63 is intended to improve the adhesion of the nail 401 as a whole, and also to serve as a base to prevent the color of the nail 182 from mixing with the photochromic layer 61. As shown in Figures 1 and 3, when the object to be colored needs to be transparent to show the dial underneath, such as the crystal glass 42 of the watch 4, the base layer 63 does not need to be formed.

[0133] In the above example, the nail 401 is formed by applying each layer to the nail 182 in order, but the photochromic layer 61 and the coating layer 64 may be integrated together. In this case, a visible light curable resin is used as the main material, and the visible light curable resin contains an ultraviolet absorber and a photochromic material. In this case, after applying a visible light curable resin to the nail 182, visible light that is not completely absorbed by the UV absorber is irradiated. This causes the visible light curable resin to harden, forming the nail 401. However, in this case, the photochromic material is positioned including the surface of the nail 401. In this state, when exposed to sunlight, UV light may reach the photochromic material without being absorbed by the UV absorber, which may cause the photochromic material to color unintentionally. For this reason, it is recommended to take measures (such as a coating) to block UV light.

[0134] Next, a third embodiment (an example of a general-purpose machine) of a color conversion system including the lighting device shown in FIGS. 1 and 3 will be described with reference to FIG. FIG. 21 is a diagram showing a third embodiment of a color conversion system including the lighting device shown in FIG. 21, in the case of a color conversion system including the lighting device 2 of the third embodiment, the predetermined medium 402 may be any object as long as it is small enough to fit into the space inside the lighting device 2, and the coloring (color conversion) process is performed on, for example, a pot, a cup, a container, a toy, etc. The mobile terminal 1 is the same as that shown in Figures 1 to 3 above, and a description thereof will be omitted.

[0135] In the lighting device 2 of the third embodiment, the case is made up of a left side surface, a right side surface, a top surface, and a back surface. A light source unit including a UV light source 55 and an LED light source 56 is disposed on each of the top surface 211, the left side surface 212, and the right side surface 213. A heat sink 57 and a fan 58 are provided on the outside of the light source unit. Handles 214 are fixed to the light source units so as to protrude perpendicularly to the respective faces. Guide mechanisms 215 are provided on the respective faces so as to engage with the handles 214 and allow the light source units to slide. In the case of this lighting device 2, the user can adjust the irradiation distance between the specified medium 402 and the light source by holding each handle 214 and moving the light source unit up and down (arrow Y direction) and left and right (arrow X direction).

[0136] In the case of the lighting device 2 of this third embodiment, functional elements other than the light source are arranged in an external control device (not shown). The functional elements are the communication unit 51, light source driving unit 52, power supply unit 53, etc. shown in FIG. 3. Therefore, the lighting device 2 and the control device are connected by a communication line and a power cord. Note that control information from the mobile terminal 1 is transmitted to the lighting device 2 via the control device. The operation is the same as in the first embodiment.

[0137] The color conversion system including the lighting device 2 of the third embodiment can accommodate a coloring object (predetermined medium 402) of a certain size, and can achieve high output by using heat dissipation measures such as the heat sink 57 and fan 58. It is therefore possible to color objects larger than the watch 4, nails 401, etc., and can be used for general-purpose purposes.

[0138] Next, a fourth embodiment of the color conversion system including the illumination device shown in FIGS. 1 and 3 (in which the object to be colored is glasses) will be described with reference to FIG. FIG. 22 is a diagram showing a fourth embodiment of a color conversion system including the lighting device shown in FIG. 22, in the case of the lighting device 2 of the fourth embodiment, the predetermined medium is eyeglasses 411, and the two-layer color conversion layer 60 shown in FIG. 3 is applied as the color conversion layer formed on the eyeglasses 411. The lighting device 2 is composed of a case 221 and a lid 222 that can be removed from the case 221. The interior of the case 221 is divided into a plurality of compartments by partitions, and storage spaces 223 are provided for each part 412 of the glasses 411. The UV light source 55 and the LED light source 56 shown in FIG. 3 are arranged in the lid 222. The color specification screen of the portable terminal 1 is also configured so that the color can be specified for each part 412 in addition to the entire glasses 411. Other than this, the functional configuration of the portable terminal 1 is the same as that of the first embodiment (see FIG. 3), and therefore a description thereof will be omitted.

[0139] According to the color conversion system including the illumination device 2 of the fourth embodiment, coloring (color conversion) can be performed on the glasses 411 alone as well as on each of the separated parts.

[0140] Next, a fifth embodiment of the color conversion system including the lighting device shown in FIGS. 1 and 3 (using an example in which the object to be colored is jewelry) will be described with reference to FIG. FIG. 23 is a diagram showing a fifth embodiment of a color conversion system including the lighting device shown in FIG. As shown in FIG. 23, in the fifth embodiment, the predetermined medium is jewelry 421, and the lighting device 2 is composed of a case 231 having an opening at the top and a lid 232 that can open and close the opening of the case 231. The case 231 has a seat 233 inside to support the ring part of the jewelry 421. The lid 232 is provided with the UV light source 55 and the LED light source 56 shown in Fig. 3. The functional configuration of the mobile terminal 1 is the same as that of the first embodiment (see Fig. 3), and a description thereof will be omitted.

[0141] According to the color conversion system including the lighting device 2 of the fifth embodiment, the jewelry 421 can be colored (color converted). In addition, by installing (introducing) the color conversion system in stores that sell Jewelry 421, it is possible to increase the frequency of customers visiting the store, and it is also possible to expect an increase in sales of other products.

[0142] Next, a sixth embodiment of the color conversion system including the lighting device shown in FIGS. 1 and 3 (an example in which the object to be colored is a contact lens) will be described with reference to FIG. FIG. 24 is a diagram showing a sixth embodiment of a color conversion system including the lighting device shown in FIG. As shown in FIG. 24, in the sixth embodiment, the predetermined medium is a contact lens 431, and the lighting device 2 is composed of a case 241 having an opening at the top and a lid 242 that can open and close the opening of the case 241. The case 241 has a storage section 243 inside for placing a contact lens 431. The lid 242 is provided with the UV light source 55 and the LED light source 56 shown in Fig. 3. The functional configuration of the mobile terminal 1 is the same as that of the first embodiment (see Fig. 3), and a description thereof will be omitted.

[0143] The contact lens 431 is provided with a color conversion layer of a three-layer structure formed on the surface of the lens or inside the lens. The color conversion layers are arranged in order from closest to the eyeball as layer 1 (bottom layer), layer 2 (middle layer), and layer 3 (top layer). Layer 2 (middle layer) contains a UV-reactive transparent pigment layer. Layer 3 (top layer) is a layer that blocks UV light, preventing color changes caused by UV light and protecting eye health.

[0144] In the case of this contact lens 431, the color specified by the user through the application on the mobile terminal 1 appears on the contact lens 431, and after a certain period of time, the contact lens 431 returns to being transparent.

[0145] This contact lens 431 is a contact lens that uses a transparent pigment that reacts to specific UV light, and the user selects the color through an app on the mobile terminal 1, and the color is produced by the dedicated lighting device 2 (UV irradiation device) described above.

[0146] The color developed by the contact lenses 431 is maintained for 24 hours to one week, after which they return to their transparent state, reducing the hassle of disposable lenses. This allows users to enjoy a wide variety of colors.

[0147] By providing a color conversion service including the contact lens 431 and lighting device 2 described above, a new experience can be provided to users, and there is broad market potential in the fields of fashion, medicine, and sports.

[0148] As a marketing strategy, the company will promote the service in the market through partnerships with influencers and promotions at events. It will also hold trial sessions for the service at venues such as fashion shows and sporting events, offering users special experiences that will attract their interest.

[0149] According to the color conversion system including the lighting device 2 of the sixth embodiment, it is possible to color the contact lens 431 (color conversion) in accordance with various situations. Specifically, users can change the color of their contact lenses to match their daily fashion or events. In medical applications, UV protection can protect eye health while providing a visual change. In sports, it can adjust vision to specific situations, improving visibility and performance. Furthermore, by installing (introducing) the color conversion system in a store that sells contact lenses 431, the frequency of customers can be increased, and an increase in sales of other products can also be expected.

[0150] Here, a business model using the color conversion system of the sixth embodiment will be described. This business model provides a service for selling contact lenses that use special transparent pigments, where a service provider sells colors to users through a mobile application, users select and purchase colors through the mobile application, and the service provider changes the color of the contact lenses to match the color purchased by the user using a color conversion system including a lighting device 2 (UV irradiation device) and provides them to the user. The color of the contact lenses is maintained for 24 hours to one week, after which they return to transparency. This contact lens color-changing service can be applied to a wide range of uses, including fashion, medical, and sports.

[0151] Next, a seventh embodiment of the color conversion system including the lighting device shown in FIGS. 1 and 3 (in which the object to be colored is shoes) will be described with reference to FIG. FIG. 25 is a diagram showing a seventh embodiment of a color conversion system including the lighting device shown in FIG. As shown in FIG. 25, in the seventh embodiment, the predetermined medium is a shoe 441, and the lighting device 2 is composed of a case 251 having an opening at the top and a lid 252 that fits into the opening of the case 251. The case 251 has a deep storage section 253 inside for storing shoes 441. The case 251 and the lid 252 are provided with a UV light source 55 and an LED light source 56 shown in Fig. 3. The functional configuration of the mobile terminal 1 is the same as that of the first embodiment (see Fig. 3), and a description thereof will be omitted.

[0152] According to the color conversion system including the lighting device 2 of the seventh embodiment, the shoes 441 can be colored (color converted). Furthermore, by installing (introducing) the color conversion system in a store that sells shoes 441, the frequency of customers visiting the store can be increased, and an increase in sales of other products can also be expected.

[0153] Next, an eighth embodiment of the color conversion system including the lighting device shown in FIGS. 1 and 3 (an example in which the object to be colored is a bag) will be described with reference to FIG. FIG. 26 is a diagram showing an eighth embodiment of a color conversion system including the lighting device shown in FIG. As shown in FIG. 26, in the eighth embodiment, the predetermined medium is a bag 451, and the lighting device 2 is composed of a case 261 having an opening at the top and a lid 262 that can open and close the opening of the case 261. The case 261 has a deep storage section 263 inside for storing the bag 451. The case 261 and the lid 262 are provided with the UV light source 55 and the LED light source 56 shown in Fig. 3. The functional configuration of the portable terminal 1 is the same as that of the first embodiment (see Fig. 3), and a description thereof will be omitted.

[0154] According to the color conversion system including the lighting device 2 of the eighth embodiment, the bag 451 can be colored (color converted). Furthermore, by installing (introducing) the color conversion system in a store that sells bag 451, the frequency of customers visiting the store can be increased, and an increase in sales of other products can also be expected.

[0155] Next, a ninth embodiment of the color conversion system including the lighting device shown in FIGS. 1 and 3 (an example in which the object to be colored is a vehicle) will be described with reference to FIG. FIG. 27 is a diagram showing a ninth embodiment of a color conversion system including the lighting device shown in FIG. As shown in Figure 27, in the ninth embodiment, the specified medium is a color conversion layer (having a three-layer structure similar to the example of nail 401 in Figure 18) formed on the exterior surface of vehicle 461, and lighting device 2 has a housing 271 with an entrance on the side. The interior of the housing 271 is configured as a garage 272 for storing a vehicle 461. The UV light source 55 and the LED light source 56 shown in Fig. 3 are arranged inside the garage 272. The functional configuration of the mobile terminal 1 is the same as that of the first embodiment (see Fig. 3), and a description thereof will be omitted.

[0156] According to the color conversion system including the lighting device 2 of the ninth embodiment, the vehicle 461 can be colored (color converted). Furthermore, by installing (introducing) the color conversion system in a store that handles vehicle 461, the frequency of customers visiting the store can be increased, and an increase in sales of other products can also be expected.

[0157] Here, a business model using the color conversion system of the ninth embodiment will be described. The business model provides a service for changing the exterior color of a vehicle, and in particular allows customers to customize the exterior color of a vehicle at the time of purchase and after purchase. One possible business model is an instant customization service for individuals. In this service, potential buyers visit a dealership, select a color from a color sample, and then a test drive car is provided that can be customized to that color within a few minutes. This allows customers to get a concrete image of the color before purchasing and experience it instantly.

[0158] Another business model is a post-purchase subscription service. In this service, a user purchases a white car with a transparent paint coating and can change the color at any time by visiting a dealership based on the subscription agreement. This service allows users to freely change the color of their car to suit their mood, the season, or a special event. Another possible business model is a rapid response service for businesses, whereby a business customer can quickly customize a fleet of vehicles with custom liveries for a specific event or campaign.

[0159] According to the business model described above, consumers can not only experience the car's color in real time during the purchasing decision process, but also enjoy the flexibility of changing the color at will after purchase, while dealers can increase customer satisfaction, increase sales opportunities, and strengthen their marketing activities.

[0160] Another possible business model would be to convert offline color information into light information and provide a service for buying and selling colors through an application installed on a smartphone or a web app accessible via a web browser. With this service, users who have purchased a color can change the color of any product that contains pigment, such as cars, clothes, bags, jewelry, eyeglass frames, lenses, home appliances, nails, foundation, eyeliner, hair color, etc., to their liking by connecting their smartphone to a light-emitting device via short-range data communication or a wireless local network and sending and receiving signals.

[0161] In addition, because it is a substitute for pigments, it will be possible to change the color of the paint on trains, airplanes, ships, etc. This will create a new platform market for purchasing digital colors.

[0162] Color information can be converted into light information, and the light information can be incorporated as data on the blockchain, enabling traceability of who has obtained the light information for that color, as well as market development such as color monopoly. The content of the light information is defined by a combination of the irradiation time, irradiation intensity (output), irradiation range, ratio, etc. of each of R, G, and B.

[0163] <Business type> In terms of business model, for example, by managing colors as digital data, there is no need to keep physical colors in stock in stores. The cost per color purchased through an application is only the application distribution platform fee (e.g., an online application market) and payment processing fee (e.g., X%), which increases the profit margin for the company.

[0164] Colors can be traded in units of a certain amount of yen per color, and points can also be charged (charged) and used to purchase. The point system allows points to be exchanged with affiliated companies, broadening the scope for users. We provide a function that allows users to transfer or gift the colors they have purchased. To transfer a color, points are consumed, which generates profits.

[0165] <How to sell color> The device itself (UV irradiation device) and the smartphone app allow users to purchase colors. Users have a digital palette that they can load with colors. Charges are based on gauge (amount, points). You can create your own color. - For example, 24 basic colors are assumed, but it is possible to deliver additional colors within the range that humans can recognize. The basic idea is to have users purchase colors through the app. -Has the ability to synthesize (edit) colors as digital data. - Colors exclusive to that company will be provided. By linking with location information, you can set colors that can only be purchased there. - New colors are available digitally whenever they are released. Users can download new colors at any time. You can buy one color at a time, or all 24 colors at once. You can also purchase multiple colors at once. · It is also possible to have corporate monopolies on color information as a strategy (contract).

[0166] <Charging method> · The service can be provided as a subscription contract (fixed monthly fee) in combination with the device. · It may be possible to charge a fee when changing the color. -In-app purchases + additional features (e.g. gradients) can be sold as options. It is also preferable to split the revenue (profit) of the app in half. Billing section, color setting section, color reception section, color fee setting section (as a margin in case of developing it as a collaboration with another company, rather than as an in-house product). Since each user's living environment is different, if the color fades within the warranty period, the product is guaranteed for the warranty period. For example, for nails 182 (see Figure 18), the warranty period is about 12 hours, and for hair, the warranty period is about one week.

[0167] <Usage> Applications include paint for vehicles such as cars and airplanes, clothing, bags, jewelry, eyeglass frames, lenses, and home appliances. It can also be used in nail polish, foundation, eyeliner, hair color, and any other pigmented products. By using this technology, you can change the color of any product at any time. -It can be used as a product tester to check the color yourself and attract customers to buy the actual product. Along with the distribution of limited colors exclusively for companies, 2D codes will be distributed and colors will be added to the digital palette by scanning the 2D codes. Each time the app is used, secondary information (gender, location, time, product, color, and irradiation location) is acquired by the service provider's server. Based on the acquired data, the server provides information in the form of trends to the app on the user's mobile device. For example, information such as "such and such person purchased or used this color" is provided.

[0168] <Features> The color conversion system is characterized by the fact that it converts specified color information into light information (light source control information). It is specified by a combination of the irradiation time, output, irradiation range, ratio, etc. of each of R, G, and B. This is what differentiates it from inkjet printers, etc. The color conversion system can change the structure and illumination conditions of the lighting device 2 (illumination device) depending on the time required to maintain the color.

[0169] Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within the scope of achieving the object of the present invention are included in the present invention.

[0170] In the above-described embodiment, an example was described in which the specified medium was a watch, but it could also be, for example, nails, glasses, jewelry, a bag, a vehicle, etc., and a housing corresponding to the size and shape of each medium can be prepared, and light can be irradiated from the surrounding area while each medium is housed in the housing.

[0171] Furthermore, for example, the above-described series of processes can be executed by hardware or software. In other words, the functional configuration in Fig. 3 is merely an example and is not particularly limited. That is, it is sufficient for the color conversion system to have the functionality to execute the above-described series of processes as a whole, and the functional blocks used to realize these functions are not limited to the example of FIG. 3. Furthermore, the locations of the functional blocks and the information in the storage units are not particularly limited to those in FIG. 3 and may be arbitrary. For example, at least a portion of the functional blocks and the information in the storage units required to execute various processes may be transferred to a lighting device, a cloud on a network, or the like. Conversely, the functional blocks and information of the lighting device may be transferred to a mobile terminal, a cloud on a network, or the like. Furthermore, one functional block may be configured as a single piece of hardware, a single piece of software, or a combination thereof.

[0172] When a series of processes is executed by software, the programs that make up the software are installed into a computer or the like from a network or a recording medium. The computer may be a computer built on dedicated hardware. The computer may also be a computer capable of executing various functions by installing various programs, such as a server, a general-purpose smartphone, or a personal computer.

[0173] The recording medium containing such a program may be composed of not only a removable medium (not shown) that is distributed separately from the device main body in order to provide the program to users, etc., but also a recording medium that is provided to users, etc. in a state where it is pre-installed in the device main body.

[0174] In this specification, the steps describing the program to be recorded on the recording medium include not only processes that are performed chronologically in accordance with the order, but also control processes that are not necessarily performed chronologically but are executed in parallel or individually. In addition, in this specification, the term "system" refers to an overall device that is made up of a plurality of devices, a plurality of means, etc.

[0175] In summary, the information processing apparatus to which the present invention is applied is sufficient if it has the following configuration, and can take on a variety of different embodiments. That is, the information processing device to which the present invention is applied is (1) An information processing device (e.g., the mobile terminal 1 in FIG. 3) in which a user specifies a predetermined color to be converted when converting the color of a predetermined medium specified by the user (e.g., the crystal glass 42 of the watch 4 in FIGS. 1 and 3) using a color conversion system (e.g., see FIG. 1) that converts the color of a medium, a UI providing means (e.g., the UI providing unit 31 in FIG. 3) that provides a user with a UI (User Interface: for example, a screen of the mobile terminal 1 on which the color selection button area 151 in FIG. 15 is arranged) through which the user can perform a designation operation to designate the predetermined color from among a plurality of colors; a predetermined color designation means (e.g., the color conversion control unit 32 in FIG. 3 ) that receives the predetermined color designated by the designation operation performed on the UI and notifies the color conversion system (the lighting device 2) of the predetermined color; Equipped with. This allows a predetermined medium (for example, the crystal 42 of the watch 4 in FIGS. 1 and 3) to be converted (colored) into the predetermined color (a color designated by the user).

[0176] (2) The UI (for example, the screen of the mobile terminal 1 in FIG. 15) a specified color specification area (color selection button area 151 in FIG. 15) that accepts the specification operation of specifying the predetermined color from among N colors specified in advance; a customization instruction area (customization area 161 in FIG. 16) in which the user customizes and generates an arbitrary color, and accepts the designation operation of designating the generated color as the predetermined color; Equipped with. In this way, by displaying a UI (for example, the screen of the mobile terminal 1 in FIG. 15) that includes a specified color specification area (color selection button area 151 in FIG. 15) that accepts the specification operation to specify the specified color from among N predefined colors, and a customization specification area (customization area 161 in FIG. 16) that accepts the specification operation to allow the user to customize and generate an arbitrary color and specify the generated color as the specified color, the user can specify a desired color or customize a color to generate an arbitrary color and display that color.

[0177] (3) The color conversion system (see, for example, FIG. 1) The predetermined medium (e.g., the crystal 42 of the watch 4 in FIG. 1) having a photochromic layer; an illumination device (e.g., illumination device 2 in FIG. 3) that irradiates the predetermined medium with ultraviolet light from an ultraviolet light source and red, green, and blue visible light from red, green, and blue visible light sources, respectively; a control device (e.g., the mobile terminal 1 in FIG. 3) that controls the illumination of the lighting device (e.g., the lighting device 2 in FIG. 3); Equipped with The photochromic layer (for example, the photochromic layer 61 in FIG. 3) contains three types of photochromic materials that develop colors of cyan, magenta, and yellow, respectively, when irradiated with ultraviolet light from the lighting device (for example, the lighting device 2 in FIG. 3), The control device (for example, the mobile terminal 1 in FIG. 3) a color conversion control means (e.g., color conversion control unit 32 in FIG. 3 ) that performs control to convert the predetermined medium into the predetermined color by irradiating the predetermined medium with ultraviolet light from the ultraviolet light source of the lighting device (e.g., lighting device 2 in FIG. 3 ) to fade the predetermined medium, and irradiating the predetermined medium with red, green, and blue visible light from red, green, and blue visible light sources of the lighting device, respectively, under conditions (light irradiation intensity, irradiation time) required to convert the predetermined color, thereby causing the predetermined medium to develop a color; It has. In this way, the color conversion system includes an illumination device (e.g., illumination device 2 in FIG. 3) that irradiates a predetermined medium with ultraviolet light from an ultraviolet light source and red, green, and blue visible light from red, green, and blue visible light sources, respectively, and a control device (e.g., mobile terminal 1 in FIG. 3) that controls the irradiation of the illumination device (e.g., illumination device 2 in FIG. 3). This allows a color to be specified from the control device (e.g., mobile terminal 1 in FIG. 3) and displayed on the illumination device (e.g., illumination device 2 in FIG. 3). This allows a color trading business to be realized between a user with a control device (e.g., mobile terminal 1 in FIG. 3) and a party that installs an illumination device (e.g., illumination device 2 in FIG. 3).

[0178] (4) The predetermined medium further has a coating layer (e.g., coating layer 62 in FIG. 3) that absorbs ultraviolet rays of wavelengths (325 nm to 430 nm) contained in sunlight on the earth's surface and transmits ultraviolet rays of a predetermined wavelength (325 nm or less), The ultraviolet light emitted from the lighting device (e.g., lighting device 2 in Figure 3) contains at least components of the wavelengths (red: 650 nm, green: 525 nm, blue: 430 nm) set to cause the specified medium (e.g., crystal 42 of watch 4 in Figure 3) to color within a range equal to or less than the specified wavelength that is transmitted through the coating layer. This makes it possible to provide a product in which the predetermined medium does not discolor when exposed to sunlight on the earth's surface, but changes color only when illuminated by light from a lighting device (for example, lighting device 2 in FIG. 3).

[0179] (5) The information processing method to which the present invention is applied is 1. An information processing method executed by an information processing device (e.g., the mobile terminal 1 in FIG. 3) in which a user specifies a predetermined color to be converted when converting the color of a predetermined medium specified by the user (e.g., the crystal 42 of the watch 4 in FIG. 1) using a color conversion system that converts the color of a medium, comprising: a UI providing step of providing a UI (User Interface: a screen of the mobile terminal 1 in FIG. 15 ) to the user for performing a designation operation for the user to designate the predetermined color from among a plurality of colors; a predetermined color designation step of receiving the predetermined color designated by the designation operation performed on the UI and notifying the predetermined color to the color conversion system (e.g., lighting device 2) (transmitting the irradiation intensity and irradiation time of each light source); Including, It is possible.

[0180] (6) The program to which the present invention is applied is When converting the color of a predetermined medium designated by a user (for example, the crystal glass 42 of the watch 4 in FIG. 1) using a color conversion system for converting the color of a medium, the predetermined color to be converted is input to a computer designated by the user (for example, the CPU 11 of the mobile terminal 1 in FIG. 3) as follows: a UI providing step of providing a UI (User Interface: the screen of the mobile terminal 1 in FIG. 15 ) to the user for performing a designation operation (a button operation of a desired color) for the user to designate the predetermined color from among a plurality of colors; a predetermined color designation step of receiving the predetermined color designated by the designation operation (a button operation for a desired color) performed on the UI and notifying the predetermined color to the color conversion system (e.g., the lighting device 2) (transmitting the irradiation intensity and irradiation time of each light source); Execute a control process including It is possible. [Explanation of symbols]

[0181] 1 Mobile terminal, 2 Lighting device, 11 CPU, 12 ROM, 13 RAM, 14 Bus, 15 Input / output interface, 16 Output unit, 17 Input unit, 18 Memory unit, 19 Communication unit, 20 Drive, 21 Removable media, 31 UI providing unit, 32 Color conversion control unit, 55 UV light source, 56a, 56b, 56c LED light source

Claims

1. An information processing device in which a user specifies a predetermined color to be converted when converting the color of a predetermined medium specified by the user using a color conversion system that converts the color of a medium, the information processing device comprising: a UI providing means for providing a user with a UI (User Interface) through which the user can perform a designation operation to designate the predetermined color from among a plurality of colors; a predetermined color designation means for receiving the predetermined color designated by the designation operation performed on the UI and notifying the color conversion system of the predetermined color; An information processing device comprising:

2. The UI includes: a designated color designation area that accepts the designation operation for designating the predetermined color from among N colors that are designated in advance; a customization instruction area for receiving the designation operation for the user to customize and generate an arbitrary color and support the generated color as the predetermined color; The information processing device according to claim 1 , comprising:

3. The color conversion system includes: the predetermined medium having a photochromic layer; an illumination device that irradiates the predetermined medium with ultraviolet light from an ultraviolet light source and red, green, and blue visible light from red, green, and blue visible light sources, respectively; a control device for controlling the illumination of the lighting device; Equipped with the photochromic layer includes three types of photochromic materials that develop colors of cyan, magenta, and yellow, respectively, when irradiated with ultraviolet light from the lighting device; The control device a color conversion control means for controlling the conversion of the predetermined medium into the predetermined color by irradiating the predetermined medium with ultraviolet light from the ultraviolet light source of the lighting device to cause the predetermined medium to develop a color, and by irradiating the predetermined medium with red, green, and blue visible light from red, green, and blue visible light sources of the lighting device, respectively, under conditions required for conversion into the predetermined color, thereby causing the predetermined medium to fade; having The information processing device according to claim 1 .

4. the predetermined medium further has a coating layer that absorbs ultraviolet rays of wavelengths contained in sunlight on the earth's surface and transmits ultraviolet rays of a predetermined wavelength or shorter; the ultraviolet light irradiated from the irradiation device includes at least a component of a color-developing wavelength, the wavelength of which is set to cause the predetermined medium to develop a color within a range equal to or less than the predetermined wavelength that is transmitted through the coating layer; The information processing device according to claim 3 .

5. 1. An information processing method executed by an information processing device in which a user specifies a predetermined color to be converted when converting the color of a predetermined medium specified by the user using a color conversion system that converts the color of the medium, the method comprising: a UI providing step of providing a user with a UI (User Interface) through which the user performs a designation operation to designate the predetermined color from among a plurality of colors; a predetermined color designation step of accepting the predetermined color designated by the designation operation performed on the UI and notifying the color conversion system of the predetermined color; An information processing method including:

6. When converting the color of a predetermined medium designated by a user using a color conversion system for converting the color of a medium, the predetermined color to be converted is input to a computer designated by the user. a UI providing step of providing a user with a UI (User Interface) through which the user performs a designation operation to designate the predetermined color from among a plurality of colors; a predetermined color designation step of accepting the predetermined color designated by the designation operation performed on the UI and notifying the color conversion system of the predetermined color; A program that executes control processing including:

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