Bathroom unit

Abstract

To provide a bathroom unit capable of further improving bather relaxing effects.SOLUTION: A bathroom unit includes a first illumination part, a second illumination part arranged below the first illumination part, a third illumination part arranged below the second illumination part, and a control part for controlling lighting and lighting-out of each of the first illumination part, the second illumination part, and the third illumination part, and also controlling at least one of a flux value and a color temperature of light emitted from each of the first illumination part, the second illumination part, and the third illumination part. The control part has fluctuating illumination modes in a fluctuation pattern for lighting the third illumination part and lighting out the first illumination part and the second illumination part, or setting the flux value of the light emitted from each of the first illumination part and the second illumination part to be smaller than the flux value of the light emitted from the third illumination part while applying strength and weakness to at least one of the flux value and the color temperature of the light emitted from the third illumination part.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Aspects of the present invention generally relate to bathroom units.

Background Art

[0002] There are bathroom units equipped with a counter on which articles such as washbasins and shampoos can be placed. In such bathroom units, a lighting unit is provided on the ceiling part, wall part, etc., and a lighting unit for illuminating the lower part of the counter is further provided. Thereby, it is possible to suppress the lower space of the counter from becoming dark.

[0003] Thus, in a bathroom unit having a plurality of lighting units, it is desired to further improve the relaxation effect of the bather.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been made based on the recognition of such problems, and an object thereof is to provide a bathroom unit that can further improve the relaxation effect of the bather.

Means for Solving the Problems

[0006] <并把 原样保留>The first invention is a bathroom unit comprising: a first lighting unit; a second lighting unit positioned below the first lighting unit; a third lighting unit positioned below the second lighting unit; and a control unit that controls the lighting and extinguishing of the first, second, and third lighting units, and controls at least one of the luminous flux value and color temperature of the light emitted from each of the first, second, and third lighting units, wherein the control unit has a plurality of lighting modes that change the lighting state of the first, second, and third lighting units, and the plurality of lighting modes have at least a fluctuating lighting mode in which the third lighting unit is turned on and the first and second lighting units are turned off, or the luminous flux value of the light emitted from each of the first and second lighting units is made smaller than the luminous flux value of the light emitted from the third lighting unit, and at least one of the luminous flux value and color temperature of the light emitted from the third lighting unit is varied in intensity.

[0007] This bathroom unit features a fluctuating lighting mode, allowing bathers to appreciate a fluctuating light pattern. When the first and second lighting units are turned off, bathers can appreciate only the fluctuating light pattern in a relatively dark bathroom, creating a deeply relaxing space. Furthermore, by setting the luminous flux values ​​of the light emitted from the first and second lighting units to be lower than those of the light emitted from the third lighting unit, it is possible to ensure sufficient illumination for areas such as the feet while still allowing the bather to appreciate the fluctuating light pattern, thus preventing the surroundings from becoming too dark and creating a relaxing space. Therefore, this bathroom unit can provide a more enhanced relaxation effect for bathers.

[0008] The second invention is a bathroom unit characterized in that, in the first invention, the third lighting unit is capable of directly irradiating light toward the washing area floor, and in the fluctuating lighting mode, the fluctuating pattern light irradiated from the third lighting unit is reflected by the washing area floor to create an effect within the bathroom.

[0009] This bathroom unit allows for the entire bathroom to be illuminated by either turning off the first and second lighting units, or by reducing the luminous flux values ​​of the light emitted from each of the first and second lighting units to less than the luminous flux value of the light emitted from the third lighting unit, while reflecting the fluctuating pattern of light emitted from the third lighting unit off the washing area floor. In other words, the entire space in the bathroom can be made to fluctuate with indirect light reflected from the washing area floor. This provides a greater relaxing effect for the bather.

[0010] The third invention is a bathroom unit characterized in that, in the first or second invention, the fluctuation pattern of the fluctuation lighting mode is a 1 / f fluctuation pattern based on the characteristics of 1 / f fluctuation.

[0011] According to this bathroom unit, the relaxation effect on bathers can be further enhanced by allowing them to appreciate light with a 1 / f fluctuation pattern.

[0012] The fourth invention is a bathroom unit characterized in that, in any one of the first to third inventions, the first lighting unit and the second lighting unit are located above the upper surface of the bathtub, the third lighting unit is located below the upper surface of the bathtub, and the direct light from the third lighting unit is irradiated below the upper surface of the bathtub.

[0013] With this bathroom unit, the first and second lighting units are positioned above the surface of the bathtub, making it easier to ensure sufficient brightness in the bathroom when the first and second lighting units are turned on. Furthermore, the third lighting unit is positioned below the surface of the bathtub, making it easier to prevent direct light from entering the bather's field of vision when appreciating the flickering light pattern. For example, this can suppress pupil constriction, promote parasympathetic nervous system dominance, and further enhance the bather's relaxation effect.

[0014] The fifth invention is a bathroom unit characterized in that, in any one of the first to fourth inventions, the control unit sets the color temperature of the light emitted from the third lighting unit in the fluctuating lighting mode to 1800K or more and 2300K or less.

[0015] This bathroom unit allows the color temperature of the flickering light pattern to be brought closer to the color of a candle flame or other flame that has a relaxing effect, thereby further enhancing the relaxation effect on bathers.

[0016] The sixth invention is a bathroom unit characterized in that, in any one of the first to fifth inventions, each of the first lighting unit, the second lighting unit, and the third lighting unit has a plurality of light sources with different color temperatures, and the control unit changes the color temperature of the light emitted from each of the first lighting unit, the second lighting unit, and the third lighting unit according to the plurality of lighting modes.

[0017] This bathroom unit allows for the accurate simulation of color temperature changes during the daytime (high illuminance, high color temperature), at dusk (low illuminance, low color temperature), and in between, by changing the color temperature of the light emitted from the first, second, and third lighting units according to multiple lighting modes. Therefore, it is possible to create a space that provides deeper refreshing and relaxing effects, depending on the bather's preferences.

[0018] The seventh invention is a bathroom unit characterized in that, in any one of the first to sixth inventions, the plurality of lighting modes further comprises: a full-lighting lighting mode in which the first lighting unit, the second lighting unit, and the third lighting unit are each lit; and an intermediate lighting mode in which the first lighting unit is turned off, or the luminous flux value of the light emitted from the first lighting unit is made smaller than the luminous flux value of the light emitted from the second and third lighting units, respectively, and the second and third lighting units are lit.

[0019] According to this bathroom unit, in full illumination mode, the first, second, and third lighting units are turned on, ensuring high visibility and enhancing the bather's refreshing effect. In intermediate illumination mode, the first lighting unit, which is installed at a higher position, is turned off or its luminous flux is reduced, while the second and third lighting units, which are installed at a lower position than the first lighting unit, are turned on, ensuring visibility while enhancing the bather's relaxation effect compared to the full illumination mode.

[0020] The eighth invention is a bathroom unit characterized in that, in any one of the first to seventh inventions, the plurality of lighting modes further include a lower lighting mode in which the third lighting unit is turned on and the first and second lighting units are turned off, or the luminous flux value of the light emitted from each of the first and second lighting units is made smaller than the luminous flux value of the light emitted from the third lighting unit, and the fluctuation of at least one of the luminous flux value and color temperature of the light emitted from the third lighting unit is made smaller than the fluctuation in the fluctuating lighting mode, or the fluctuation is stopped.

[0021] This bathroom unit, by further incorporating a lower lighting mode, can achieve a stable or non-flickering lighting state according to the bather's preferences, thereby enhancing the bather's relaxation effect.

[0022] The ninth invention is a bathroom unit that, in any one of the first to eighth inventions, further comprises a lighting switch for switching between the plurality of lighting modes, wherein the control unit sequentially switches between the plurality of lighting modes in order from the higher side of at least one of the luminous flux value and the color temperature, or in order from the lower side of at least one of the luminous flux value and the color temperature, in response to the operation of the lighting switch.

[0023] According to this bathroom unit, a plurality of lighting modes can be arbitrarily switched according to the preferences of the bather, etc. At this time, by sequentially switching the plurality of lighting modes in order from the higher side of at least one of the luminous flux value and the color temperature, or in order from the lower side of at least one of the luminous flux value and the color temperature, rapid expansion or contraction of the pupil can be suppressed, and inhibition of the relaxation effect of the bather can be suppressed.

[0024] The tenth invention is any one of the first to ninth inventions, further comprising a first counter disposed below the first lighting unit and having a shelf-shaped upper surface so that an article can be placed thereon, and a second counter disposed below the first counter and the second lighting unit and having a shelf-shaped upper surface so that an article can be placed thereon, wherein the second lighting unit can irradiate light downward toward the first counter, and the third lighting unit can irradiate light downward toward the second counter.

[0025] According to this bathroom unit, even when the first counter and the second counter are provided, it is possible to suppress the space below the first counter from becoming dark by the light irradiated from the second lighting unit, and it is possible to suppress the space below the second counter from becoming dark by the light irradiated from the third lighting unit.

[0026] The eleventh invention is the tenth invention, wherein the first counter has a counter main body having the upper surface, and a water discharging unit provided at a lower portion of the counter main body and having a water discharging port for discharging hot and cold water.

[0027] According to this bathroom unit, by providing a water discharging unit in the first counter, the water discharging unit and the hot and cold water discharged from the water discharging unit can be illuminated by the second lighting unit, and the visibility of the water discharging unit and the hot and cold water discharged from the water discharging unit can be enhanced.

[0028] The twelfth invention is a bathroom unit characterized in that, in any one of the first to eleventh inventions, the control unit sets the range of variation in the luminous flux value of the light emitted from the third lighting unit in the fluctuating lighting mode to a range of 0.5 times or more and 1.5 times or less of a reference value.

[0029] This bathroom unit allows the fluctuations in the brightness of the fluctuating light pattern to be within a range that people can perceive as a change in brightness, making the fluctuating light pattern easier to recognize and further enhancing the relaxation effect on bathers. [Effects of the Invention]

[0030] According to an aspect of the present invention, a bathroom unit is provided that can further enhance the relaxation effect on bathers. [Brief explanation of the drawing]

[0031] [Figure 1] This is a schematic perspective view of a bathroom unit according to the embodiment. [Figure 2] This is a schematic front view of a bathroom unit according to an embodiment. [Figure 3] This is a schematic block diagram showing the electrical configuration of the bathroom unit according to the embodiment. [Figure 4] This table schematically illustrates an example of the operation of the control unit. [Figure 5] This is an explanatory diagram illustrating an example of a control signal. [Figure 6] This graph schematically illustrates an example of the operation of the control unit. [Figure 7] This is a schematic front view showing a modified example of the bathroom unit according to the embodiment. [Figure 8] This is a schematic front view showing a modified example of the bathroom unit according to the embodiment. [Figure 9] This is a schematic perspective view showing a modified example of the bathroom unit according to the embodiment. [Figure 10] This is a schematic perspective view showing a modified example of the bathroom unit according to the embodiment. [Figure 11]This is a schematic block diagram showing a modified example of the bathroom unit according to the embodiment. [Modes for carrying out the invention]

[0032] Embodiments of the present invention will be described below with reference to the drawings. In each drawing, similar components are denoted by the same reference numerals, and detailed descriptions are omitted as appropriate. Figure 1 is a schematic perspective view of a bathroom unit according to an embodiment. Figure 2 is a schematic front view showing a bathroom unit according to the embodiment. As shown in Figures 1 and 2, the bathroom unit 10 comprises a first counter 11, a second counter 12, a first lighting unit 21, a second lighting unit 22, a third lighting unit 23, and a control unit 30.

[0033] In this example, the bathroom unit 10 further includes, for example, a fourth lighting unit 24, a bathtub 40, a washing area floor 42, a wall section 44, a ceiling section 46, and a mirror 48.

[0034] The washing area floor 42 is provided adjacent to the bathtub 40. The bathroom unit 10 has, for example, a plurality of wall sections 44. Each wall section 44 is provided so as to surround the bathtub 40 and the washing area floor 42. The ceiling section 46 is provided above each wall section 44 and closes the top of the space enclosed by each wall section 44. The bathroom unit 10 may have a plurality of ceiling sections 46. The bathroom unit 10 may close the top of each wall section 44 with a single ceiling section 46, or it may close the top of each wall section 44 with a plurality of ceiling sections 46. In other words, the wall section 44 is a wall panel. In other words, the ceiling section 46 is a ceiling panel.

[0035] The bathroom unit 10 is a so-called unit bath or system bath, which is a unitized version of, for example, a bathtub 40, a washing area floor 42, surrounding walls 44, and a ceiling 46. The bathroom unit 10 is installed inside the building structure, forming a bathroom BR inside the building structure. The washing area floor 42 forms the floor surface 42a of the bathroom BR. The walls 44 form the bathroom walls 44a of the bathroom BR.

[0036] The bathroom unit 10 may further include, for example, a door member for entering and exiting the bathroom BR. In addition, in the bathroom unit 10, the bathtub 40, the washing area floor 42, each wall section 44, the ceiling section 46, and the mirror 48 can be provided as needed and can be omitted. The bathroom unit 10 only needs to include at least a first counter 11, a second counter 12, a first lighting unit 21, a second lighting unit 22, a third lighting unit 23, and a control unit 30. In other words, the bathroom unit 10 is not limited to forming the bathroom BR itself, but may also be used by installing the first counter 11, the second counter 12, the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the control unit 30 etc. inside an existing bathroom BR.

[0037] The washing area floor 42 has a drain 42b for discharging hot water that has flowed onto the floor surface 42a to the outside. The drain 42b is provided, for example, adjacent to the bathtub 40. The drain 42b is provided, for example, near the center of the bathroom BR.

[0038] The first counter 11 and the second counter 12 are used by being attached to the bathroom wall 44a of the wall section 44. The first counter 11 and the second counter 12 are attached to the bathroom wall 44a that is continuous with the floor surface 42a of the washing area floor 42.

[0039] In this example, the first counter 11 and the second counter 12 are attached to the bathroom wall 44a that extends in the direction in which the bathtub 40 and the washing area floor 42 are aligned. The second counter 12 is attached to the bathroom wall 44a so as to be located above the washing area floor 42. The first counter 11 is attached to the bathroom wall 44a so as to be located above the bathtub 40 and the washing area floor 42. In other words, the first counter 11 is attached to the bathroom wall 44a so as to straddle the bathtub 40 and the washing area floor 42.

[0040] The first counter 11 does not necessarily have to extend all the way to the bathtub 40. The first counter 11 only needs to be positioned above the washing area floor 42. The bathroom wall 44a to which the first counter 11 and the second counter 12 are attached is not limited to the above and may be any bathroom wall 44a of the bathroom BR.

[0041] The first lighting unit 21 is installed in the ceiling 46. The first lighting unit 21 illuminates the bathroom BR by, for example, emitting light downwards from the ceiling 46. The first lighting unit 21 is a so-called downlight. The bathroom unit 10 has, for example, multiple first lighting units 21. In this example, the bathroom unit 10 has four first lighting units 21 located near the four corners of the rectangular ceiling 46. The number of first lighting units 21 is not limited to multiple; it may be just one. Also, the first lighting unit 21 is not limited to a downlight; for example, it may be a lighting fixture that is attached to the wall 44. The first lighting unit 21 may be any lighting fixture that can brighten the bathroom BR.

[0042] The first counter 11 is positioned below the first lighting unit 21. The first counter 11 has a counter body 60 and a water outlet 61. The counter body 60 has a shelf-shaped upper surface 60a on which items such as shampoo bottles can be placed. The water outlet 61 is located at the bottom of the counter body 60 and has a spout 61a for dispensing hot and cold water. In other words, the water outlet 61 is a spout. Thus, the first counter 11 functions as a counter on which items can be placed, and also functions as a faucet that dispenses hot and cold water. In other words, the first counter 11 is a faucet counter. However, the first counter 11 does not necessarily have to have the function of a faucet.

[0043] The second lighting unit 22 illuminates the first counter 11 downwards. The second counter 12 is positioned below the first counter 11 and the second lighting unit 22. The second lighting unit 22 illuminates, for example, the upper surface 80a of the second counter 12. This makes the space below the first counter 11 brighter. For example, it can brighten the water discharge from the first counter 11 or the upper surface 80a of the second counter 12.

[0044] The second lighting unit 22 is, for example, installed inside the first counter 11 and emits illumination light from inside the first counter 11 toward the bottom of the first counter 11. However, the arrangement of the second lighting unit 22 is not limited to this. The second lighting unit 22 may, for example, be attached to the bathroom wall 44a below the first counter 11.

[0045] The second counter 12 is provided, for example, below the first counter 11, between the bathtub 40 and the wall 44. The second counter 12 is provided at a height that makes it easy for a user to use a washbasin or the like placed on it while seated on a bath chair or the like placed on the washing area floor 42.

[0046] The second counter 12 has a shelf section 80 and a support section 81. The shelf section 80 has an upper surface 80a on which items such as washbasins can be placed. The support section 81 connects the shelf section 80 to the bathroom wall 44a and supports the shelf section 80 to the bathroom wall 44a.

[0047] Thus, the second counter 12 allows a washbasin to be placed below the first counter 11, so that the hot water dispensed from the first counter 11 can be received in the washbasin. In other words, the second counter 12 is a washbasin counter. The configuration of the second counter 12 is not limited to a configuration having a shelf 80 and a support 81, but can be any configuration that at least allows a washbasin to be placed on it.

[0048] The mirror 48 is, for example, positioned above the first counter 11, allowing a user sitting on a bath chair or similar object placed on the washing area floor 42 to check their own face.

[0049] The third lighting unit 23 emits light downwards from the second counter 12. More specifically, the third lighting unit 23 emits light toward the floor surface 42a below the second counter 12. The third lighting unit 23 emits light directly toward the washing area floor 42 below the second counter 12. This makes the space below the second counter 12 and the floor surface 42a bright.

[0050] The third lighting unit 23 is, for example, installed inside the second counter 12 and emits illumination light from inside the second counter 12 toward the bottom of the second counter 12. However, the arrangement of the third lighting unit 23 is not limited to this. The third lighting unit 23 may, for example, be attached to the bathroom wall 44a below the second counter 12.

[0051] As shown in Figure 2, the first illumination unit 21 and the second illumination unit 22 are located above the upper surface 40a of the bathtub 40. On the other hand, the third illumination unit 23 is located below the upper surface 40a of the bathtub 40. Direct light from the third illumination unit 23 shines below the upper surface 40a of the bathtub 40. In other words, the third illumination unit 23 is located below the upper surface 40a of the bathtub 40 and shines direct light below the upper surface 40a of the bathtub 40.

[0052] The upper surface 40a of the bathtub 40 is, in other words, the rim surface of the bathtub 40. When the upper surface 40a is curved, the first lighting unit 21 and the second lighting unit 22 are located, for example, above the upper end (highest position) of the upper surface 40a of the bathtub 40. The third lighting unit 23 is located, for example, below the lower end (lowest position) of the upper surface 40a of the bathtub 40.

[0053] The bathtub 40 has, for example, a water discharge device (not shown) that discharges hot water into the bathtub 40. The water discharge device discharges hot water from the spout towards the neck and shoulders of the bather whose back is pressed against the backrest. This can, for example, warm the bather's neck and shoulders more, or provide a massage effect to the bather's neck and shoulders, thereby enhancing the relaxation effect during bathing.

[0054] The fourth lighting unit 24 is provided in the bathtub 40. The fourth lighting unit 24 is provided, for example, on the upper edge of the bathtub 40. The fourth lighting unit 24 illuminates, for example, the bathtub 40 or the hot water discharged into the bathtub 40 from the water discharge device. This improves the appearance of the bathtub 40. Also, for example, by shining light from behind the bather with their back against the backrest surface of the bathtub 40, it is possible to brighten the area around the bather while suppressing direct light from entering the bather's eyes, thereby further enhancing the bather's relaxation effect. The fourth lighting unit 24 can be provided as needed and is optional.

[0055] Figure 3 is a block diagram schematically showing the electrical configuration of the bathroom unit according to the embodiment. As shown in Figure 3, the control unit 30 is electrically connected to the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24, respectively.

[0056] The control unit 30 controls the lighting and extinguishing of the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24, and also controls at least one of the luminous flux value and color temperature of the light emitted from each of the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24.

[0057] The first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 each have, for example, multiple light sources with different color temperatures. The first illumination unit 21 has, for example, two light sources, a first light source 21a and a second light source 21b, with different color temperatures. Similarly, the second illumination unit 22 has, for example, two light sources, a first light source 22a and a second light source 22b, with different color temperatures. The third illumination unit 23 has, for example, two light sources, a first light source 23a and a second light source 23b, with different color temperatures. The fourth illumination unit 24 has, for example, two light sources, a first light source 24a and a second light source 24b, with different color temperatures. The control unit 30 controls, for example, the magnitude of the current flowing through each of the light sources 21a, 21b, 22a, 22b, 23a, 23b, 24a, and 24b, thereby controlling at least one of the luminous flux value and color temperature of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24.

[0058] The first light sources 21a, 22a, 23a, and 24a are, for example, light sources that emit 2000K light. The second light sources 21b, 22b, 23b, and 24b are, for example, light sources that emit 6500K light. The second light sources 21b, 22b, 23b, and 24b are, for example, light sources with a higher color temperature than the first light sources 21a, 22a, 23a, and 24a. By controlling the magnitude of the current flowing through each light source 21a, 21b, 22a, 22b, 23a, 23b, 24a, and 24b, the color temperature of the light emitted from the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 can be changed within a range of approximately 2000K to 6500K.

[0059] Each light source 21a, 21b, 22a, 22b, 23a, 23b, 24a, and 24b is, for example, an LED (Light Emitting Diode). However, each light source 21a, 21b, 22a, 22b, 23a, 23b, 24a, and 24b is not limited to LEDs, but may be other light-emitting elements such as laser diodes, or even light bulbs. Each light source 21a, 21b, 22a, 22b, 23a, 23b, 24a, and 24b may be any light source capable of emitting light at a predetermined color temperature.

[0060] The first illumination unit 21 may have, for example, a plurality of first light sources 21a and a plurality of second light sources 21b. However, the number of light sources provided in each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 may be any number. The first illumination unit 21 may also have a configuration having one first light source 21a and one second light source 21b. The first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 may each have, for example, three or more light sources with different color temperatures. In other words, the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 may each have three or more light sources of different colors. Alternatively, the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 may each have only one light source.

[0061] The control unit 30 is installed, for example, on the ceiling 46 (see Figures 1 and 2). In other words, the control unit 30 is installed in the space between the ceiling 46 and the building structure. The position of the control unit 30 is not limited to the above, and may be any position that can control the turning on and off of each lighting unit.

[0062] Figure 4 is a table schematically illustrating an example of the operation of the control unit. As shown in Figure 4, the control unit 30 has multiple lighting modes that change the lighting state of the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24. The control unit 30 has, for example, a bright mode, a medium mode, a dark mode, a meditation mode, a super-meditation mode, a first fluctuation mode, and a second fluctuation mode.

[0063] The bright mode is a lighting mode (all-light mode) in which the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 are each illuminated.

[0064] In the bright mode, the control unit 30 sets the color temperature of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to approximately 4700K (for example, between 4500K and 5000K). In other words, in the bright mode, the control unit 30 sets the color temperature of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to daylight white.

[0065] In Figure 4, within a single lighting mode, the highest luminous flux value of the light emitted from the first lighting unit 21, second lighting unit 22, third lighting unit 23, and fourth lighting unit 24 is represented as "1", the next highest as "2", the next highest as "3", the smallest as "4", and turning off as "Off".

[0066] In the bright mode, the control unit 30 increases the luminous flux value of the light emitted from the first illumination unit 21 to be greater than the luminous flux value of the light emitted from the second illumination unit 22, increases the luminous flux value of the light emitted from the second illumination unit 22 to be greater than the luminous flux value of the light emitted from the third illumination unit 23, and increases the luminous flux value of the light emitted from the third illumination unit 23 to be greater than the luminous flux value of the light emitted from the fourth illumination unit 24.

[0067] Thus, in bright mode, the color temperature of the light emitted from the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 is set to approximately 4700K, and the luminous flux value of the light emitted from the first lighting unit 21, which is installed at a high position, is set to the greatest value. As a result, in bright mode, for example, the daytime sun's altitude and brightness can be simulated, thereby enhancing the refreshing effect on bathers.

[0068] The medium mode is a lighting mode in which the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 are each lit up, and the color temperature of the light emitted from each of the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 is lower than the color temperature of the light emitted from each of the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 in the bright mode.

[0069] In the medium mode, the control unit 30 sets the color temperature of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to approximately 3500K (for example, 3000K to 4000K). In other words, in the medium mode, the control unit 30 sets the color temperature of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to warm white.

[0070] In the medium mode, the control unit 30 increases the luminous flux value of the light emitted from the first illumination unit 21 to be greater than the luminous flux value of the light emitted from the second illumination unit 22, increases the luminous flux value of the light emitted from the second illumination unit 22 to be greater than the luminous flux value of the light emitted from the third illumination unit 23, and increases the luminous flux value of the light emitted from the third illumination unit 23 to be greater than the luminous flux value of the light emitted from the fourth illumination unit 24.

[0071] Furthermore, in the medium mode, the control unit 30 reduces the luminous flux value of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to a lower value than the luminous flux value of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 in the bright mode. For example, in the medium mode, the control unit 30 reduces the luminous flux value of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to a lower value of 50% or more than the luminous flux value of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 in the bright mode.

[0072] Thus, in medium mode, the color temperature of the light emitted from the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 is set to approximately 3500K, and the luminous flux value of the light emitted from each illumination unit 21-24 is made smaller than in bright mode. As a result, in medium mode, for example, the altitude and brightness of the sun at sunset can be simulated, thereby enhancing the relaxation effect on bathers.

[0073] The dark mode is a lighting mode in which the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 are each turned on, and the color temperature of the light emitted from each of the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 is lower than the color temperature of the light emitted from each of the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 in the medium mode.

[0074] In dark mode, the control unit 30 sets the color temperature of the light emitted from the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 to approximately 2700K (for example, between 2500K and 3000K). In other words, in dark mode, the control unit 30 sets the color temperature of the light emitted from the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 to an incandescent color.

[0075] In dark mode, the control unit 30 increases the luminous flux value of the light emitted from the first illumination unit 21 to be greater than the luminous flux value of the light emitted from the second illumination unit 22, increases the luminous flux value of the light emitted from the second illumination unit 22 to be greater than the luminous flux value of the light emitted from the third illumination unit 23, and increases the luminous flux value of the light emitted from the third illumination unit 23 to be greater than the luminous flux value of the light emitted from the fourth illumination unit 24.

[0076] Furthermore, in dark mode, the control unit 30 reduces the luminous flux value of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to a lower value than the luminous flux value of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 in medium mode. For example, in dark mode, the control unit 30 reduces the luminous flux value of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to a lower value of 50% or more than the luminous flux value of the light emitted from each of the first illumination unit 21, second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 in medium mode.

[0077] Thus, in dark mode, the color temperature of the light emitted from the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 is set to approximately 2700K, and the luminous flux value of the light emitted from each illumination unit 21-24 is made smaller than in medium mode. As a result, in dark mode, for example, the altitude and brightness of the sun at dusk can be simulated, further enhancing the relaxation effect on the bather.

[0078] The meditation mode is an illumination mode (intermediate illumination mode) in which the first illumination unit 21 is turned off and the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 are each turned on.

[0079] In meditation mode, the control unit 30 sets the color temperature of the light emitted from the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 to approximately 2400K (for example, between 2200K and 2500K). In other words, in meditation mode, the control unit 30 sets the color temperature of the light emitted from the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 to a color close to the color of the sunrise or sunset.

[0080] In meditation mode, the control unit 30 increases the luminous flux value of the light emitted from the second illumination unit 22 to be greater than the luminous flux value of the light emitted from the third illumination unit 23, and increases the luminous flux value of the light emitted from the third illumination unit 23 to be greater than the luminous flux value of the light emitted from the fourth illumination unit 24.

[0081] Furthermore, in meditation mode, the control unit 30 reduces the luminous flux values ​​of the light emitted from each of the second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to be smaller than the luminous flux values ​​of the light emitted from each of the second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 in dark mode. For example, in meditation mode, the control unit 30 reduces the luminous flux values ​​of the light emitted from each of the second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 to be 50% or more smaller than the luminous flux values ​​of the light emitted from each of the second illumination unit 22, third illumination unit 23, and fourth illumination unit 24 in dark mode.

[0082] The control unit 30 sets the color temperature of the light emitted from the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 in the bright mode (all-light illumination mode) to be higher than the color temperature of the light emitted from the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 in the meditation mode (intermediate illumination mode).

[0083] Thus, in meditation mode, the first lighting unit 21 is turned off, the color temperature of the light emitted from the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 is set to approximately 2400K, and the luminous flux value of the light emitted from each lighting unit 22-24 is reduced compared to the dark mode. This allows the meditation mode to simulate, for example, the altitude and brightness of the sun at sunset, thereby further enhancing the relaxation effect on the bather.

[0084] The Super Meditation Mode is a lighting mode in which the first lighting unit 21 is turned off, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 are turned on, and the color temperature of the light emitted from each of the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 is lower than the color temperature of the light emitted from each of the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 in the Meditation Mode.

[0085] In the super-meditation mode, the control unit 30 sets the color temperature of the light emitted from the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 to approximately 2000K (for example, between 1800K and 2300K). In other words, in the super-meditation mode, the control unit 30 sets the color temperature of the light emitted from the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 to a color close to the color of a candle flame.

[0086] In the super-meditation mode, the control unit 30 increases the luminous flux value of the light emitted from the second illumination unit 22 to be greater than the luminous flux value of the light emitted from the third illumination unit 23, and increases the luminous flux value of the light emitted from the third illumination unit 23 to be greater than the luminous flux value of the light emitted from the fourth illumination unit 24.

[0087] Furthermore, in the super-meditation mode, the control unit 30 reduces the luminous flux values ​​of the light emitted from the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 to be smaller than

[0088] Thus, in the super meditation mode, the first lighting unit 21 is turned off, the color temperature of the light emitted from the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 is set to approximately 2000K, and the luminous flux value of the light emitted from each lighting unit 22-24 is reduced compared to the meditation mode. As a result, in super meditation mode, for example, the altitude and brightness of the sun at sunset and sunrise can be simulated, further enhancing the relaxation effect on the bather.

[0089] In addition, in meditation mode (intermediate lighting mode), it is not necessary to turn off the first lighting unit 21. Meditation mode may be a lighting mode in which the luminous flux value of the light emitted from the first lighting unit 21 is made smaller than the luminous flux values ​​of the light emitted from the second lighting unit 22 and the third lighting unit 23, respectively, and the second lighting unit 22 and the third lighting unit 23 are turned on. Meditation mode may be a lighting mode in which, for example, the luminous flux value of the light emitted from the first lighting unit 21 is made smaller than the luminous flux values ​​of the light emitted from the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24, respectively, and the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24 are turned on. Similarly, in super meditation mode, it is not necessary to turn off the first lighting unit 21.

[0090] The first fluctuation mode is a lighting mode (lower lighting mode) in which the first lighting unit 21, the second lighting unit 22, and the fourth lighting unit 24 are turned off, and the third lighting unit 23 is turned on. In the first fluctuation mode, the control unit 30 turns on only the third lighting unit 23, for example.

[0091] In the first fluctuation mode, the control unit 30 sets the color temperature of the light emitted from the third illumination unit 23 to approximately 2000K (for example, between 1800K and 2300K). In other words, in the first fluctuation mode, the control unit 30 sets the color temperature of the light emitted from the third illumination unit 23 to a color close to the color of a candle flame.

[0092] The control unit 30 sets the color temperature of the light emitted from the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 to be higher than the color temperature of the light emitted from the third illumination unit 23 in the first fluctuation mode (lower illumination mode).

[0093] In the first fluctuation mode, the control unit 30 sets the luminous flux value of the light emitted from the third illumination unit 23 to be substantially the same as the luminous flux value of the light emitted from the second illumination unit 22 and the third illumination unit 23 in the super-meditation mode.

[0094] Thus, in the first fluctuation mode, the first lighting unit 21, the second lighting unit 22, and the fourth lighting unit 24 are turned off, and the color temperature of the light emitted from the third lighting unit 23 is set to approximately 2000K. This allows the first fluctuation mode to simulate the brightness of a flame, for example, and further enhance the relaxation effect on the bather.

[0095] The second fluctuation mode is a lighting mode (fluctuating lighting mode) in which the third illumination unit 23 is turned on, the first illumination unit 21, the second illumination unit 22, and the fourth illumination unit 24 are turned off, and at least one of the luminous flux value and color temperature of the light emitted from the third illumination unit 23 is varied in intensity.

[0096] In the second fluctuation mode, the first illumination unit 21, the second illumination unit 22, and the fourth illumination unit 24 do not necessarily have to be turned off. The second fluctuation mode may be an illumination mode with a fluctuation pattern in which the third illumination unit 23 is turned on, the luminous flux values ​​of the light emitted from each of the first illumination unit 21, the second illumination unit 22, and the fourth illumination unit 24 are made smaller than the luminous flux value of the light emitted from the third illumination unit 23, and at least one of the luminous flux value and color temperature of the light emitted from the third illumination unit 23 is varied in intensity.

[0097] In other words, the first fluctuation mode is a lighting mode in which the third illumination unit 23 is turned on, the first illumination unit 21, the second illumination unit 22, and the fourth illumination unit 24 are turned off, and fluctuations in at least one of the luminous flux value and color temperature of the light emitted from the third illumination unit 23 are stopped. Note that even in the first fluctuation mode, the first illumination unit 21, the second illumination unit 22, and the fourth illumination unit 24 do not necessarily have to be turned off. The first fluctuation mode may also be a lighting mode in which the luminous flux value of the light emitted from each of the first illumination unit 21, the second illumination unit 22, and the fourth illumination unit 24 is made smaller than the luminous flux value of the light emitted from the third illumination unit 23.

[0098] Furthermore, the first fluctuation mode is not limited to a lighting mode in which fluctuations in at least one of the luminous flux value and color temperature of the light emitted from the third illumination unit 23 are stopped. It may also be a lighting mode in which fluctuations in at least one of the luminous flux value and color temperature of the light emitted from the third illumination unit 23 are smaller than fluctuations in at least one of the luminous flux value and color temperature in the second fluctuation mode (fluctuating lighting mode).

[0099] In the second fluctuation mode, the control unit 30 sets the color temperature of the light emitted from the third illumination unit 23 to between 1800K and 2300K. In other words, in the second fluctuation mode, the control unit 30 varies the color temperature of the light emitted from the third illumination unit 23 within the range of 1800K to 2300K. This makes it possible to simulate, for example, the flickering of a candle flame in the second fluctuation mode.

[0100] The control unit 30 sets the range of variation in the luminous flux value of the light emitted from the third illumination unit 23 in the second fluctuation mode to a range of 0.5 times or more and 1.5 times or less of the reference value. The reference value is, for example, substantially the same as the luminous flux value of the light emitted from the third illumination unit 23 in the first fluctuation mode.

[0101] In this way, the control unit 30 changes the center of gravity of light in the vertical direction within the bathroom BR using multiple lighting modes: bright mode, medium mode, dark mode, meditation mode, super meditation mode, first fluctuation mode, and second fluctuation mode. In other words, the control unit 30 changes the vertical position of the part with the highest luminous flux value within the bathroom BR using multiple lighting modes.

[0102] It is known that the position of light affects human psychology, as humans synchronize with the rhythm of natural light from the sun, being most active during the day when the sun is high in the sky, becoming less active from dusk until sunset when the sun is low in the sky, and relaxing at night. The same is true for indoor lighting. For example, when you want to relax, you can create a relaxed and comfortable space by dimming the ceiling lights and turning on the lights at a lower position. Conversely, during times of activity or when a sense of tension is needed, you can create a space that refreshes your mind by using high-positioned lights that illuminate from top to bottom.

[0103] In the bathroom unit 10, the control unit 30 changes the center of gravity of light in the vertical direction within the bathroom BR using multiple lighting modes. This makes it possible to create a bathing environment that provides the relaxation and refreshing effects desired by the bather. Therefore, the refreshing and relaxing effects on the bather can be further enhanced.

[0104] Furthermore, in the bathroom unit 10, the first lighting unit 21, second lighting unit 22, third lighting unit 23, and fourth lighting unit 24 each have multiple light sources with different color temperatures, and the control unit 30 changes the color temperature of the light emitted from each of the first lighting unit 21, second lighting unit 22, third lighting unit 23, and fourth lighting unit 24 according to multiple lighting modes. This makes it possible to accurately simulate changes in color temperature, such as during the day when the sun is high in the sky (high illuminance, high color temperature), at dusk when the sun is low in the sky (low illuminance, low color temperature), and in between. Therefore, it is possible to create a space that provides a deeper refreshing and relaxing effect, for example, according to the bather's preferences.

[0105] As shown in Figure 3, the bathroom unit 10 further includes, for example, a switch 32, a lighting switch 34, and a memory unit 36. The switch 32 is electrically connected to the control unit 30. The switch 32 is mounted, for example, on the outer wall of the bathroom BR (for example, the wall of the dressing room) or on the bathroom wall 44a inside the bathroom BR. The switch 32 instructs the control unit 30 to switch the lighting units 21-24 on and off. The control unit 30 lights up each of the lighting units 21-24 in response to the on-in instruction from the switch 32. The control unit 30 lights up each of the lighting units 21-24 in bright mode in response to the on-in instruction from the switch 32. The control unit 30 also turns off each of the lighting units 21-24 in response to the off-in instruction from the switch 32.

[0106] The lighting switch 34 is electrically connected to the control unit 30. The lighting switch 34 is mounted, for example, on the bathroom wall 44a in the bathroom BR or on the inner wall of the bathtub 40. The lighting switch 34 is a switch for switching between multiple lighting modes.

[0107] The control unit 30 sequentially switches between multiple lighting modes in response to the operation of the lighting switch 34, either starting from the higher side of at least one of the luminous flux value and color temperature, or starting from the lower side of at least one of the luminous flux value and color temperature.

[0108] The lighting switch 34 has a first operating section for instructing a switch to the darker direction, a second operating section for instructing a switch to the brighter direction, and a third operating section for instructing a stop to dimming control.

[0109] The control unit 30 sequentially switches between multiple lighting modes in the following order, for example, in response to the operation of the first operation unit of the lighting switch 34: bright mode, medium mode, dark mode, meditation mode, super meditation mode, first fluctuation mode, and second fluctuation mode.

[0110] The control unit 30, for example, in response to the operation of the second operation unit of the lighting switch 34, sequentially switches between multiple lighting modes in the following order: second fluctuation mode, first fluctuation mode, super meditation mode, meditation mode, dark mode, medium mode, and bright mode, in the opposite direction to the above.

[0111] For example, when the third operation unit of the lighting switch 34 is operated, the control unit 30 switches from the current lighting mode to the bright mode, regardless of which of the multiple lighting modes was set to. This reduces the hassle of having to operate the second operation unit multiple times, for example, when you want to brighten the room after leaving the bathroom BR from a state where the lighting is set to the second fluctuating mode.

[0112] The memory unit 36 ​​stores, for example, multiple control signals set for each lighting unit 21-24 and for each lighting mode. The control unit 30, for example, refers to the memory unit 36 ​​in response to the operation of the lighting switch 34, reads the control signals for each lighting unit 21-24 corresponding to the set lighting mode from the memory unit 36, and controls the illumination of lighting light from each lighting unit 21-24 based on the read control signals. This makes it possible to control the turning on and off of each lighting unit 21-24 according to the set lighting mode, and to control at least one of the luminous flux value and color temperature of the light emitted from each lighting unit 21-24.

[0113] The memory unit 36 ​​stores, for example, control signals S1 and S2 for irradiating light with a fluctuating pattern in which at least one of the luminous flux value and color temperature is varied in intensity. Control signals S1 and S2 are, in other words, control signals for executing the second fluctuating mode. The control unit 30 reads the control signals S1 and S2 from the memory unit 36 ​​and executes the second fluctuating mode by controlling the irradiation of illumination light from the third illumination unit 23 based on the control signals S1 and S2.

[0114] Figure 5 is an explanatory diagram illustrating an example of a control signal. Figure 5 schematically shows an example of control signals S1 and S2 when executing the second fluctuation mode. As shown in Figure 5, the control signals S1 and S2 for executing the second fluctuation mode are signals that represent at least one of the luminous flux value and color temperature of the illumination light for a predetermined time period.

[0115] Control signals S1 and S2 are signals that contain multiple frequency components and represent a fluctuation pattern. In other words, control signals S1 and S2 are signals that represent a fluctuation pattern by combining multiple waves with different frequencies into a composite wave.

[0116] When executing the second fluctuation mode, the control unit 30 reads control signals S1 and S2 from the storage unit 36, controls the irradiation of light from the first light source 23a of the third illumination unit 23 based on control signal S1, and controls the irradiation of light from the second light source 23b of the third illumination unit 23 based on control signal S2.

[0117] The control unit 30, for example, supplies a current of a magnitude corresponding to the control signal S1 to the first light source 23a, thereby irradiating the first light source 23a with light corresponding to the control signal S1, and supplies a current of a magnitude corresponding to the control signal S2 to the second light source 23b, thereby irradiating the second light source 23b with light corresponding to the control signal S2. As a result, the third illumination unit 23 can emit light with a fluctuating pattern.

[0118] In the second fluctuation mode, the control unit 30 repeatedly controls the irradiation of light from the third illumination unit 23 based on control signals S1 and S2. In this case, control signals S1 and S2 are set such that, for example, at least one of the luminous flux value and color temperature of the illumination light at the end is close to at least one of the luminous flux value and color temperature of the illumination light at the start. This makes it possible to suppress a sudden change in at least one of the luminous flux value and color temperature of the illumination light when the control based on control signals S1 and S2 ends and the control based on the next control signal S1 and S2 starts, even when control signals S1 and S2 are repeatedly executed. In other words, it is possible to suppress flickering of the illumination light at the timing when the control based on the next control signal S1 and S2 starts.

[0119] Furthermore, as shown in Figure 5, the control unit 30 controls the illumination of light from the first light source 23a and the second light source 23b based on control signals S1 and S2, so that when the illuminance of the light emitted from the first light source 23a, which has a lower color temperature, increases, the illuminance of the light emitted from the second light source 23b, which has a higher color temperature, also increases. For example, the control unit 30 only illuminates the second light source 23b, which has a higher color temperature, when the illuminance of the light emitted from the first light source 23a, which has a lower color temperature, is above a predetermined value. As a result, compared to, for example, the case where a fluctuating pattern of light is emitted using only a single light source (for example, when only the first light source 23a is used), the moment when the flame becomes larger (brighter) can be reproduced more realistically, and the fluctuating flame of a candle or the like can be simulated more realistically.

[0120] However, the method of illuminating the fluctuation pattern light from the third illumination unit 23 in the second fluctuation mode is not limited to the above. For example, the fluctuation pattern light may be illuminated from only one light source.

[0121] Furthermore, the fluctuation pattern of the second fluctuation mode is, for example, a 1 / f fluctuation pattern based on the characteristics of 1 / f fluctuation. The control unit 30 sets the fluctuation pattern of the second fluctuation mode to a 1 / f fluctuation pattern based on the characteristics of 1 / f fluctuation. A 1 / f fluctuation pattern is, for example, a fluctuation in which the amount of light emitted from the third illumination unit 23 changes irregularly over time, and the higher the frequency component, the smaller the energy (has a 1 / f slope).

[0122] Figure 6 is a graph that schematically represents an example of the operation of the control unit. As shown in Figure 6, the control unit 30 adjusts the slope of the regression line of the energy distribution (spectral density), where the frequency component f of the light emitted from the first irradiation unit 21, the second irradiation unit 22, or the third illumination unit 23 is on the horizontal axis and the illuminance (energy) P of the emitted light is on the vertical axis, so that the slope satisfies the relationship P = 1 / f. For example, the control unit 30 sets the slope of the regression line of the energy distribution to -1 ± 0.5. This makes it possible to set the fluctuation pattern to a 1 / f fluctuation pattern based on the characteristics of 1 / f fluctuation. In other words, a 1 / f fluctuation pattern is a state in which the slope of the regression line of the energy distribution is set within the range of -1 ± 0.5.

[0123] The control signals S1 and S2 are generated, for example, by generating random waveforms using random numbers and then performing waveform processing to attenuate the energy (illuminance) of high-frequency components, thereby generating waveforms with the 1 / f fluctuation characteristics described above. The control unit 30 controls the irradiation of light from the third illumination unit 23 based on the waveforms of the control signals S1 and S2 generated as described above. As a result, the control unit 30 realizes an illumination mode with a 1 / f fluctuation pattern in which at least one of the luminous flux value and color temperature of the light irradiated from the third illumination unit 23 is varied in intensity.

[0124] The multiple lighting modes set in the control unit 30 are not necessarily limited to those described above. The multiple lighting modes may include more lighting modes that change the lighting state of each lighting unit 21 to 24. The multiple lighting modes only need to include at least a fluctuating lighting mode (for example, a second fluctuating mode).

[0125] As described above, the bathroom unit 10 according to this embodiment has a fluctuating lighting mode (second fluctuating mode), which allows the bather to appreciate the fluctuating pattern of light. When the first lighting unit 21 and the second lighting unit 22 are turned off, the bather can appreciate only the fluctuating pattern of light in the relatively dark bathroom BR, creating a deeply relaxing space. Furthermore, when the luminous flux values ​​of the light emitted from the first illumination unit 21 and the second lighting unit 22 are made smaller than the luminous flux values ​​of the light emitted from the third lighting unit 23, it is possible to ensure sufficient illumination for the feet and other areas while still allowing the bather to appreciate the fluctuating pattern of light, thus preventing the surroundings from becoming too dark and creating a relaxing space. Therefore, it is possible to provide a bathroom unit 10 that can further enhance the relaxation effect on the bather.

[0126] In the bathroom unit 10, in the fluctuating lighting mode (second fluctuating mode), the first lighting unit 21 and the second lighting unit 22 are turned off, or the luminous flux values ​​of the light emitted from the first lighting unit 21 and the second lighting unit 22 are made smaller than the luminous flux values ​​of the light emitted from the third lighting unit 23, while the fluctuating pattern light emitted from the third lighting unit 23 is reflected off the washing floor 42, thereby illuminating the entire bathroom BR. In other words, the entire space within the bathroom BR can be made to fluctuate with indirect light reflected off the washing floor 42. This provides a greater relaxing effect for the bather.

[0127] In the bathroom unit 10, the fluctuation pattern of the fluctuating lighting mode is a 1 / f fluctuation pattern based on the characteristics of 1 / f fluctuation. By allowing bathers to appreciate the light with a 1 / f fluctuation pattern in this way, the relaxation effect on bathers can be further enhanced.

[0128] In the bathroom unit 10, the first lighting unit 21 and the second lighting unit 22 are positioned above the upper surface 40a of the bathtub 40, and the third lighting unit 23 is positioned below the upper surface 40a of the bathtub 40, so that direct light from the third lighting unit 23 shines below the upper surface 40a of the bathtub 40. By positioning the first lighting unit 21 and the second lighting unit 22 above the upper surface 40a of the bathtub 40 in this way, it is possible to ensure sufficient brightness in the bathroom BR when the first lighting unit 21 and the second lighting unit 22 are turned on. Furthermore, by positioning the third lighting unit 23 below the upper surface 40a of the bathtub 40, it is possible to suppress direct light from entering the bather's field of vision when appreciating the flickering light pattern. For example, this can suppress pupil constriction, promote parasympathetic nervous system dominance, and further enhance the bather's relaxation effect.

[0129] In the bathroom unit 10, the control unit 30 sets the color temperature of the light emitted from the third lighting unit 23 to between 1800K and 2300K in the flickering lighting mode. This makes it possible to bring the color temperature of the flickering pattern light closer to the color of a candle flame or other flame that has a relaxing effect, thereby further enhancing the relaxation effect on the bather.

[0130] In the bathroom unit 10, each of the first lighting unit 21, the second lighting unit 22, and the third lighting unit 23 has multiple light sources with different color temperatures, and the control unit 30 changes the color temperature of the light emitted from each of the first lighting unit 21, the second lighting unit 22, and the third lighting unit 23 according to the multiple lighting modes. In this way, by changing the color temperature of the light emitted from each of the first lighting unit 21, the second lighting unit 22, and the third lighting unit 23 according to the multiple lighting modes, it is possible to simulate with high fidelity the changes in color temperature such as during the day when the sun is high in the sky (high illuminance, high color temperature), at dusk when the sun is low in the sky (low illuminance, low color temperature), and in between the two. For this reason, it is possible to create a space that provides a deeper refreshing and relaxing effect according to the bather's preferences, for example.

[0131] The bathroom unit 10 further includes multiple lighting modes: a full-on lighting mode (bright mode, medium mode, dim mode) in which the first lighting unit 21, the second lighting unit 22, and the third lighting unit 23 are all lit; and an intermediate lighting mode (meditation mode, super-meditation mode) in which the first lighting unit 21 is turned off or its luminous flux value is reduced, and the second lighting unit 22 and the third lighting unit 23 are lit. In the full-on lighting mode, by illuminating the first lighting unit 21, the second lighting unit 22, and the third lighting unit 23, high visibility can be ensured, and the refreshing effect on the bather can be enhanced. In the intermediate lighting mode, by turning off the first lighting unit 21, which is installed at a higher position, or reducing its luminous flux value, and illuminating the second lighting unit 22 and the third lighting unit 23, which are installed at a lower position than the first lighting unit 21, visibility can be ensured, while enhancing the relaxation effect on the bather more than in the full-on lighting mode.

[0132] The bathroom unit 10 further includes a lower lighting mode (first fluctuating mode) in which multiple lighting modes either turn on the third lighting unit 23 and turn off the first lighting unit 21 and the second lighting unit 22, or reduce the luminous flux value of the light emitted from each of the first lighting unit 21 and the second lighting unit 22 to the luminous flux value of the light emitted from the third lighting unit 23, and reduce the fluctuation of at least one of the luminous flux value and color temperature of the light emitted from the third lighting unit 23 to less than the fluctuation in the fluctuating lighting mode, or stop the fluctuation. By having a lower lighting mode in this way, it is possible to achieve a lighting state with little or no fluctuation according to the bather's preference, thereby enhancing the bather's relaxation effect.

[0133] The bathroom unit 10 is further equipped with a lighting switch 34 for switching between multiple lighting modes. The control unit 30 sequentially switches between the multiple lighting modes in response to the operation of the lighting switch 34, either starting from the higher side of at least one of the luminous flux value and color temperature, or starting from the lower side of at least one of the luminous flux value and color temperature. This allows the bather to arbitrarily switch between multiple lighting modes according to their preferences. In this case, by sequentially switching between the multiple lighting modes in order from the higher side of at least one of the luminous flux value and color temperature, or starting from the lower side of at least one of the luminous flux value and color temperature, it is possible to suppress rapid dilation and constriction of the pupils and prevent interference with the bather's relaxation effect.

[0134] In the bathroom unit 10, the second lighting unit 22 is capable of illuminating light downwards on the first counter 11, and the third lighting unit 23 is capable of illuminating light downwards on the second counter 12. As a result, even when the first counter 11 and the second counter 12 are installed, the light emitted from the second lighting unit 22 can suppress the darkness of the space below the first counter 11, and the light emitted from the third lighting unit 23 can suppress the darkness of the space below the second counter 12.

[0135] In the bathroom unit 10, the first counter 11 comprises a counter body 60 having an upper surface 60a, and a water outlet 60 provided at the lower part of the counter body 60 and having a water outlet 61a for discharging hot and cold water. By providing the water outlet 61 on the first counter 11 in this way, the water outlet 61 and the hot and cold water discharged from the water outlet 61 are illuminated by the second lighting unit 22, thereby improving the visibility of the water outlet 61 and the hot and cold water discharged from the water outlet 61.

[0136] In the bathroom unit 10, the control unit 30 sets the range of fluctuation in the luminous flux value of the light emitted from the third lighting unit 23 in the fluctuating lighting mode to a range of 0.5 times or more and 1.5 times or less of the reference value. This makes the range of fluctuation in the brightness of the fluctuating pattern light within a range that a person can perceive as a change in brightness, making it easier to recognize the fluctuating pattern light and further enhancing the relaxation effect on the bather.

[0137] Figure 7 is a schematic front view showing a modified example of the bathroom unit according to the embodiment. As shown in Figure 7, in the bathroom unit 10a, the third lighting unit 23 is provided on the side 40b of the bathtub 40 facing the washing area floor 42. Components that are substantially the same in function and configuration as those in the above embodiment are denoted by the same reference numerals, and detailed explanations are omitted.

[0138] The side 40b of the bathtub 40 facing the washing area floor 42 is, in other words, the side of the bath apron of the bathtub 40 facing the washing area floor 42. The third lighting unit 23 is provided at a position higher than the lower end of the side 40b of the bathtub 40. The third lighting unit 23 is provided, for example, near the center of the side 40b of the bathtub 40 in the vertical direction.

[0139] The portion of the side 40b of the bathtub 40 below the third lighting unit 23 is set back towards the bathtub 40 than the portion of the side 40b of the bathtub 40 above the third lighting unit 23. In other words, the side 40b of the bathtub 40 is formed in a two-tiered stepped shape. The third lighting unit 23 is installed in the stepped portion of the side 40b and emits light downwards. The third lighting unit 23 emits light directly towards, for example, the washing area floor 42. This makes it possible to create a lighting effect in the bathroom BR by reflecting the light of the fluctuating pattern emitted from the third lighting unit 23 off the washing area floor 42, as described above, in the second fluctuating mode.

[0140] Furthermore, the side surface 40b of the bathtub 40 does not necessarily have to be formed in a stepped shape. For example, the side surface 40b of the bathtub 40 may be formed in an inclined or curved shape that slopes downward toward the bathtub 40 side, so that light can be irradiated downward from the third lighting unit 23 located near the middle in the vertical direction.

[0141] Furthermore, the third lighting unit 23 is not limited to emitting light downwards, but may also emit light to the side, etc. In this case, the side surface 40b of the bathtub 40 may be, for example, flat. The surface (the surface that emits light) of the third lighting unit 23 may be configured to be substantially flush with the side surface 40b of the bathtub 40.

[0142] Figure 8 is a schematic front view showing a modified example of the bathroom unit according to the embodiment. As shown in Figure 8, in the bathroom unit 10b, the third lighting unit 23 is provided at the lower end of the side surface 40b of the bathtub 40 that faces the washing area floor 42. In other words, in this example, the third lighting unit 23 is provided at the inner corner on the side surface 40b of the bathtub 40 between the side surface 40b of the bathtub 40 and the washing area floor 42. The third lighting unit 23 illuminates the washing area floor 42 directly by shining light diagonally downward to the side, for example.

[0143] Figure 9 is a schematic perspective view showing a modified example of the bathroom unit according to the embodiment. As shown in Figure 9, in the bathroom unit 10c, the third lighting unit 23 is provided at the lower end of the wall 44. The third lighting unit 23 is provided, for example, between the washing area floor 42 and the wall 44. In other words, in this example, the third lighting unit 23 is provided at the inner corner on the wall 44 side between the washing area floor 42 and the wall 44. The third lighting unit 23 directs light towards the washing area floor 42 by emitting light diagonally downward to the side, for example.

[0144] The bathroom unit 10c has three third lighting units 23 provided at the lower end of each of the three wall sections 44 connected to the end of the washing floor 42. The number of third lighting units 23 provided at the lower end of the wall section 44 is not limited to the above; it may be one or two. When third lighting units 23 are provided at the lower end of the wall section 44, the wall section 44 on which the third lighting units 23 are installed may be any wall section 44 connected to the end of the washing floor 42.

[0145] Figure 10 is a schematic perspective view showing a modified example of the bathroom unit according to the embodiment. As shown in Figure 10, in the bathroom unit 10d, the third lighting unit 23 is installed inside the bathtub 40. In this example, the third lighting unit 23 shines light towards the bathwater stored in the bathtub 40. In other words, the third lighting unit 23 is an underwater light.

[0146] Thus, the third illumination unit 23 that emits light with a fluctuation pattern in the second fluctuation mode is not limited to emitting light downwards from the second counter 12, but may also emit light downwards from the side 40b (bath apron) of the bathtub 40, emit light from the lower end of the side 40b of the bathtub 40, emit light from the lower end of the wall 44, or emit light into the bathtub 40. For example, the fourth illumination unit 24 provided on the upper edge of the bathtub 40 may be used as the third illumination unit 23. In other words, the third illumination unit 23 may be provided on the upper edge of the bathtub 40.

[0147] The position of the third lighting unit 23 is not limited to the above, and may be any position below the first lighting unit 21 and the second lighting unit 22. The position of the third lighting unit 23 may be any position below the upper surface 40a of the bathtub 40. The position of the third lighting unit 23 may be any position that can provide a relaxing effect to the bather by illuminating the entire space in the bathroom BR with indirect light while suppressing direct light from entering the field of vision of the bather inside the bathtub 40.

[0148] Furthermore, the first lighting unit 21 is not limited to being installed on the ceiling 46. The second lighting unit 22 is not limited to illuminating the first counter 11 downwards. The first lighting unit 21 and the second lighting unit 22 may, for example, be installed in the inner corner on the ceiling 46 side between the ceiling 46 and the wall 44. The first lighting unit 21 and the second lighting unit 22 may, for example, be cornice lighting that illuminates the wall surface of the wall 44. The first lighting unit 21 and the second lighting unit 22 may, for example, be cove lighting that irradiates light from the wall 44 toward the ceiling. The first lighting unit 21 and the second lighting unit 22 may, for example, be installed in the inner corner between two wall sections 44. The first lighting unit 21 and the second lighting unit 22 may, for example, be installed on a shelf attached to the wall 44. The first lighting unit 21 is not limited to the above, and may be any lighting installed above the upper surface 40a of the bathtub 40. The second lighting unit 22 may be any lighting fixture positioned below the first lighting unit 21, for example.

[0149] Figure 11 is a schematic block diagram showing a modified example of the bathroom unit according to the embodiment. As shown in Figure 11, the bathroom unit 10e is further equipped with a human body detection sensor 50. The human body detection sensor 50 detects a person entering the bathroom BR. In other words, the human body detection sensor 50 detects whether or not there is a person inside the bathroom BR.

[0150] The human body detection sensor 50 may be, for example, a microwave sensor capable of detecting human movement. This allows for the detection of a person entering the bathroom BR, as described above. However, the human body detection sensor 50 is not limited to a microwave sensor; for example, an infrared sensor may also be used. The human body detection sensor 50 may be any sensor capable of detecting a person entering the bathroom BR. The human body detection sensor 50 may be composed of multiple sensors, for example. The configuration of the human body detection sensor 50 may be any configuration capable of detecting a person entering the bathroom BR.

[0151] The human body detection sensor 50 is configured to communicate with the control unit 30. Communication between the human body detection sensor 50 and the control unit 30 may be wired or wireless. The human body detection sensor 50 inputs the detection result of a person entering the bathroom BR to the control unit 30.

[0152] The control unit 30 switches between multiple lighting modes based on the detection results of the human body detection sensor 50. For example, the control unit 30 starts timing from the moment the human body detection sensor 50 detects entry into the room, and sequentially switches between multiple lighting modes in the following order according to the elapsed time from the moment of entry detection: bright mode, medium mode, dark mode, meditation mode, super meditation mode, first fluctuation mode, and second fluctuation mode. In other words, the control unit 30 sequentially switches between multiple lighting modes to gradually darken the bathroom BR according to the time elapsed since the user (bather) entered the bathroom BR. This makes it possible, for example, to gradually lead the user to a deeper state of relaxation as the time spent using the bathroom BR increases. In addition, for example, the effort required to operate the lighting switch 34 can be reduced, further enhancing the convenience of the bathroom unit.

[0153] As described above, when switching between multiple lighting modes based on the detection results of the human body detection sensor 50, the control unit 30 may turn on each of the lighting units 21 to 24 in bright mode based on the operation of the switch 32, or it may automatically switch from the off mode to the bright mode in response to the detection of entry by the human body detection sensor 50.

[0154] Furthermore, whether to automatically switch between multiple lighting modes based on the detection results of the human body detection sensor 50, or to manually switch between multiple lighting modes based on the operation of the lighting switch 34, may be arbitrarily changed based on, for example, the operation of the lighting switch 34.

[0155] In each of the above embodiments, the bathroom unit has four lighting units: a first lighting unit 21, a second lighting unit 22, a third lighting unit 23, and a fourth lighting unit 24. The bathroom unit only needs to have three lighting units: the first lighting unit 21, the second lighting unit 22, and the third lighting unit 23. The bathroom unit may have five or more lighting units, such as a fifth lighting unit. The bathroom unit may also have a configuration in which the second lighting unit 22 is omitted and only the first lighting unit 21 and the third lighting unit 23 are present, or a configuration in which the first lighting unit 21 is omitted and only the second lighting unit 22 and the third lighting unit 23 are present.

[0156] Embodiments of the present invention have been described above. However, the present invention is not limited to these descriptions. Modifications made by those skilled in the art to the above-described embodiments are also included within the scope of the present invention, as long as they retain the features of the present invention. For example, the shape, dimensions, materials, and arrangement of each element of the bathroom unit 10, etc., are not limited to those exemplified and can be modified as appropriate. Furthermore, the elements of each of the embodiments described above can be combined to the extent technically possible, and these combinations are also included within the scope of the present invention insofar as they include the features of the present invention. [Explanation of Symbols]

[0157] 10, 10a~10e Bathroom unit, 11 First counter, 12 Second counter, 21 First lighting unit, 22 Second lighting unit, 23 Third lighting unit, 24 Fourth lighting unit, 30 Control unit, 32 Switch, 34 Lighting switch, 36 Memory unit, 40 Bathtub, 42 Washing area floor, 44 Wall unit, 46 Ceiling unit, 48 Mirror, 50 Human body detection sensor, 60 Counter body, 61 Water outlet unit, 80 Shelf unit, 81 Support unit

Claims

1. The first lighting section, A second lighting unit is positioned below the first lighting unit, A third lighting unit is positioned below the second lighting unit, A control unit that controls the on / off switching of the first lighting unit, the second lighting unit, and the third lighting unit, and controls at least one of the luminous flux value and color temperature of the light emitted from each of the first lighting unit, the second lighting unit, and the third lighting unit, Equipped with, The control unit has a plurality of lighting modes that change the lighting state of the first lighting unit, the second lighting unit, and the third lighting unit, The plurality of lighting modes include at least a fluctuating lighting mode in which the intensity of at least one of the luminous flux value and color temperature of the light emitted from the third lighting unit is varied. The third lighting unit is capable of shining light directly onto the floor of the washing area. In the aforementioned fluctuating lighting mode, the light of the fluctuating pattern emitted from the third lighting unit is reflected off the floor of the washing area, illuminating the entire bathroom. The bathroom unit is characterized in that the plurality of lighting modes further include a lower lighting mode in which the third lighting unit is turned on and the first and second lighting units are turned off, or the luminous flux value of the light emitted from each of the first and second lighting units is made smaller than the luminous flux value of the light emitted from the third lighting unit, and the fluctuation of at least one of the luminous flux value and color temperature of the light emitted from the third lighting unit is made smaller than the fluctuation in the fluctuating lighting mode, or the fluctuation is stopped.

2. The bathroom unit according to claim 1, characterized in that the fluctuation pattern of the fluctuation lighting mode is a 1 / f fluctuation pattern based on the characteristics of 1 / f fluctuation.

3. The first and second lighting units are located above the upper surface of the bathtub. The third lighting unit is located below the upper surface of the bathtub, The bathroom unit according to claim 1 or 2, characterized in that the direct light from the third lighting unit is irradiated below the upper surface of the bathtub.

4. The bathroom unit according to any one of claims 1 to 3, characterized in that the control unit sets the color temperature of the light emitted from the third lighting unit to 1800K or more and 2300K or less in the fluctuating lighting mode.

5. Each of the first illumination unit, the second illumination unit, and the third illumination unit has multiple light sources with different color temperatures. The bathroom unit according to any one of claims 1 to 4, characterized in that the control unit changes the color temperature of the light emitted from the first lighting unit, the second lighting unit, and the third lighting unit according to the plurality of lighting modes.

6. The aforementioned multiple lighting modes are: A full illumination mode in which the first illumination unit, the second illumination unit, and the third illumination unit are each illuminated, An intermediate lighting mode in which the first lighting unit is turned off, or the luminous flux value of the light emitted from the first lighting unit is made smaller than the luminous flux value of the light emitted from the second lighting unit and the third lighting unit, and the second lighting unit and the third lighting unit are turned on, The bathroom unit according to any one of claims 1 to 5, further comprising the above.

7. The system further includes a lighting switch for switching between the aforementioned multiple lighting modes, The bathroom unit according to any one of claims 1 to 6, characterized in that the control unit sequentially switches the plurality of lighting modes in order from the higher side of at least one of the luminous flux value and the color temperature, or in order from the lower side of at least one of the luminous flux value and the color temperature, in response to the operation of the lighting switch.

8. A first counter is positioned below the first lighting unit, and its upper surface is formed in the shape of a shelf so that items can be placed on top of it. A second counter is positioned below the first counter and the second lighting unit, and its upper surface is formed in the shape of a shelf so that articles can be placed on top of it. Furthermore, The second lighting unit is capable of irradiating light toward the downward direction of the first counter, The bathroom unit according to any one of claims 1 to 7, characterized in that the third lighting unit is capable of irradiating light toward the downward direction of the second counter.

9. The first counter is, The counter body having the aforementioned upper surface, A water outlet is provided at the lower part of the counter body and has a spout for discharging hot and cold water, The bathroom unit according to claim 8, characterized by having the following features.

10. The bathroom unit according to any one of claims 1 to 9, characterized in that the control unit sets the range of variation in the luminous flux value of the light emitted from the third lighting unit in the fluctuating lighting mode to a range of 0.5 times or more and 1.5 times or less of a reference value.

Images