JP7417869B2 - lighting equipment - Google Patents

Description

Aspects of the present invention generally relate to lighting devices.

2. Description of the Related Art Illumination devices are known that have an illumination mode with a fluctuation pattern in which at least one of the luminous flux value and color temperature of light emitted from an illumination unit is varied. For example, at least one of the luminous flux value and color temperature is varied to simulate the fluctuation of a flame such as a candle. It is thought that such fluctuations in light have the effect of relaxing users (viewers of light).

In such a lighting device, when switching from a state in which the lighting section is turned off to a lighting mode with a fluctuation pattern, or when switching from another lighting mode in which the luminous flux value and color temperature are substantially constant to a lighting mode with a fluctuation pattern, Depending on how the luminous flux value or color temperature fluctuates at the start of the fluctuation pattern, the luminous flux value (brightness) or color temperature may temporarily change significantly, resulting in so-called flicker, which may be observed by the user. There is. Here, flickering is caused by a sudden change in light or a large temporary change in light.

For example, if the luminous flux value suddenly increases when switching from the off state to the fluctuation pattern illumination mode, and then the luminous flux value decreases according to the fluctuation pattern, the light emitted from the illumination section may It looks like it's getting brighter. If the luminous flux value suddenly decreases due to switching from another illumination mode in which the luminous flux value and color temperature are substantially constant to the illumination mode with a fluctuation pattern, and then the luminous flux value increases in accordance with the fluctuation pattern, The light emitted from the lighting section appears to become dark for a moment. If the color temperature suddenly changes due to switching to the fluctuation pattern lighting mode, the color temperature may appear to change suddenly for a moment, and the user may perceive it as flickering.

Such flickering in luminous flux value and color temperature may stimulate the user's pupils and prevent the user from relaxing. For this reason, in a lighting device that has a fluctuation pattern lighting mode, it is desirable to suppress the flickering of light when switching to the fluctuation pattern lighting mode, so that the transition to the fluctuation pattern lighting mode can be made more naturally. .

Patent No. 6249685

The present invention was made based on the recognition of this problem, and an object of the present invention is to provide a lighting device that can suppress flickering of light when switching to a fluctuation pattern lighting mode.

A first invention includes an illumination unit that irradiates illumination light, and a device for executing a fluctuation illumination mode of a fluctuation pattern in which at least one of the luminous flux value and color temperature of the illumination light irradiated from the illumination unit is varied. a storage unit that stores a control signal; and a control unit that executes the fluctuation illumination mode by reading the control signal from the storage unit and controlling irradiation of the illumination light from the illumination unit based on the control signal. and the control signal is a signal expressing at least one of a luminous flux value and a color temperature of the illumination light for a predetermined period of time, and has a first period and a second period, and the control signal The second period is a period that includes a plurality of frequency components and expresses the fluctuation pattern, the first period is a period that is shorter than the second period and is executed before the second period, and the first period is a period that is shorter than the second period and is executed before the second period, and The frequency components included in the first period are smaller than the frequency components included in the second period, and the control unit executes the first period at the start of the fluctuation illumination mode, and The second period is executed after the first period, and the control signal is such that at least one of the luminous flux value and color temperature of the illumination light at the end of the first period is equal to the luminous flux of the illumination light immediately before the start of the fluctuation illumination mode. The luminous flux value and color temperature of the illumination light in the first period so as to be closer to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period than at least one of the luminous flux value and color temperature of the illumination light at the start of the second period. This lighting device is characterized by setting at least one of the following.

According to this lighting device, by executing the first period with fewer frequency components before the second period expressing the fluctuation pattern, flickering in the luminous flux value and color temperature of the illumination light when switching to the fluctuation lighting mode is reduced. can be suppressed to reduce stimulation of the user's pupils. Furthermore, by making the temporal length of the first period shorter than the temporal length of the second period expressing the fluctuation pattern, it is difficult for the user to perceive illumination light without fluctuation even when the control signal is executed. be able to. For example, it is possible to prevent the first period from interfering with the relaxing effect. Therefore, it is possible to provide a lighting device that can suppress flickering of light when switching to the illumination mode with a fluctuation pattern.

A second invention is the lighting device according to the first invention, wherein the fluctuation pattern in the second period is a 1/f fluctuation pattern based on a characteristic of 1/f fluctuation.

According to this lighting device, by allowing the user to enjoy the light having a 1/f fluctuation pattern, it is possible to further enhance the relaxing effect on the user.

A third invention is the lighting device according to the first or second invention, characterized in that the length of the first period is 0.01 seconds or more and 3 seconds or less.

According to this lighting device, by setting the temporal length of the first period within a specified range, it is possible to make it difficult for the user to perceive the illumination light without fluctuation, and to further enhance the relaxing effect on the user.

In a fourth aspect of the present invention, in any one of the first to third aspects, during the first period, at least one of the luminous flux value and the color temperature of the illumination light is changed to the illumination light immediately before the start of the fluctuation illumination mode. The period is characterized by being constant at a value closer to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period than at least one of the luminous flux value and color temperature of the illumination light. It is a lighting device.

According to this lighting device, by setting the first period as a period in which at least one of the luminous flux value and color temperature of the illumination light is constant, the luminous flux value and color of the illumination light when switched to the fluctuation illumination mode. Temperature flickering can be more appropriately suppressed.

In a fifth invention, in any one of the first to third inventions, the first period starts from a value close to at least one of a luminous flux value and a color temperature of the illumination light immediately before the start of the fluctuation illumination mode, It is a period in which at least one of the luminous flux value and color temperature of the illumination light is gradually changed so that at least one of the luminous flux value and color temperature of the illumination light approaches a value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period. This is a distinctive lighting device.

According to this lighting device, by making the first period a period in which at least one of the luminous flux value and color temperature of the illumination light is gradually changed, the luminous flux value and color temperature of the illumination light are changed when switching to the fluctuation lighting mode. Flickering can be suppressed more appropriately.

A sixth invention is based on the fifth invention, wherein the first period is performed after a previous period in which at least one of a luminous flux value and a color temperature of the illumination light is gradually changed, and the previous period, and the first period is performed after the previous period, and The lighting device has a subsequent period in which at least one of a luminous flux value and a color temperature of the lighting device changes smaller than the previous period.

According to this lighting device, by providing a subsequent period that is executed after the previous period and in which changes in at least one of the luminous flux value and color temperature of the illumination light are smaller than the previous period, the illumination light when switching to the fluctuation lighting mode is Flickering in the luminous flux value and color temperature can be more appropriately suppressed.

In a seventh aspect of the present invention, in any one of the first to sixth aspects, the control section starts the fluctuation illumination mode, executes the first period, and then executes the second period. The lighting device is characterized in that the second period is repeatedly executed.

According to this lighting device, by executing the first period only at the start of the fluctuation lighting mode and repeatedly executing the second period thereafter, it is possible to allow the user to more appropriately appreciate the illumination light of the fluctuation pattern. This can further enhance the relaxing effect on the user.

An eighth invention is based on any one of the first to sixth inventions, wherein the control signal further has a third period, the third period is shorter than the second period, and the second period is shorter than the second period. The period is executed later, the frequency components included in the third period are less than the frequency components included in the second period, and the control signal is a period executed later than that of the illumination light at the start of the third period. At least one of the luminous flux value and the color temperature is set to a value close to at least one of the luminous flux value and color temperature of the illumination light at the end of the second period, and setting at least one of a luminous flux value and a color temperature to a value close to at least one of a luminous flux value and a color temperature of the illumination light at the start of the second period, and the control unit starts the fluctuation illumination mode; The lighting device is characterized in that, after executing the first period, executing the second period, and executing the third period, the second period and the third period are repeatedly executed.

According to this lighting device, the control signal further has a third period, and executes the first period only at the start of the fluctuation lighting mode, and thereafter repeatedly executes the second period and the third period. , the user can more appropriately appreciate the illumination light of the fluctuation pattern, and the relaxing effect can be further enhanced. Further, by providing the third period, for example, when repeating the second period, it is possible to easily suppress flickering in the illumination light at the start timing of the next second period. For example, when at least one of the luminous flux value and color temperature of the illumination light at the end of the second period is different from at least one of the luminous flux value and color temperature of the illumination light at the start of the next second period. However, by providing the third period in between, it is possible to easily suppress flickering in the illumination light at the timing of the start of the next second period. Thereby, for example, the degree of freedom in designing the fluctuation pattern in the second period can be increased.

A ninth invention is based on any one of the first to eighth inventions, wherein the control signal changes at least one of a luminous flux value and a color temperature of the illumination light at the end of the first period. The lighting device is characterized in that the luminous flux value and the color temperature of the illumination light are set to be the same as at least one of the values at the start of two periods.

According to this lighting device, the first period and the second period can be continuous without interruption, and interruptions in illumination light and color scattering can be suppressed. Flickering of the illumination light at the timing of switching from the first period to the second period can be more appropriately suppressed, and the relaxing effect for the user can be further enhanced.

A tenth invention is based on any one of the first to ninth inventions, wherein the control signal sets the color temperature of the illumination light emitted from the illumination unit in the fluctuation illumination mode to 1800K or more and 2300K or less. This is a lighting device characterized by the following.

According to this lighting device, it is possible to bring the color temperature of the light of the fluctuation pattern closer to the color of the flame of a candle or the like, which has a relaxing effect, and it is possible to further enhance the relaxing effect for the user.

In an eleventh invention, in any one of the first to tenth inventions, the control signal sets a range of variation in a luminous flux value of the illumination light irradiated from the illumination unit in the second period to a reference value. This lighting device is characterized in that the setting range is 0.5 times or more and 1.5 times or less.

According to this lighting device, the range of variation in the brightness of the light in the fluctuation pattern can be set within a range in which a person can recognize changes in brightness, making it easier to recognize the light in the fluctuation pattern, and making it easier for the user to recognize the change in brightness. The relaxing effect can be further enhanced.

According to an aspect of the present invention, a lighting device is provided that can suppress flickering of light when switching to a fluctuation pattern lighting mode.

FIG. 1 is a perspective view schematically showing a bathroom unit and a lighting device according to an embodiment. FIG. 1 is a front view schematically showing a bathroom unit and a lighting device according to an embodiment. FIG. 1 is a block diagram schematically showing the electrical configuration of a lighting device according to an embodiment. 3 is a table schematically showing an example of the operation of a control unit. FIG. 2 is an explanatory diagram schematically representing an example of a control signal. FIG. 2 is an explanatory diagram schematically representing an example of a control signal. It is a graph schematically representing an example of the operation of the control unit. It is an explanatory view showing a modification of a control signal typically. It is an explanatory view showing a modification of a control signal typically. It is an explanatory view showing a modification of a control signal typically. It is an explanatory view showing a modification of a control signal typically.

Embodiments of the present invention will be described below with reference to the drawings. Note that in each drawing, similar components are denoted by the same reference numerals, and detailed explanations are omitted as appropriate.
FIG. 1 is a perspective view schematically showing a bathroom unit and a lighting device according to an embodiment.
FIG. 2 is a front view schematically showing the bathroom unit and lighting device according to the embodiment.
As shown in FIGS. 1 and 2, the bathroom unit 2 includes a lighting device 10. The lighting device 10 includes a first lighting section 21 , a second lighting section 22 , a third lighting section 23 (lighting section), a fourth lighting section 24 , and a control section 30 .

The first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24 emit illumination light. The control unit 30 controls irradiation of illumination light from each of the first illumination unit 21 , the second illumination unit 22 , the third illumination unit 23 , and the fourth illumination unit 24 .

The bathroom unit 2 further includes, for example, a first counter 11, a second counter 12, a bathtub 40, a washing area floor 42, a wall 44, a ceiling 46, and a mirror 48.

A washing area floor 42 is provided adjacent to the bathtub 40. The bathroom unit 2 has, for example, a plurality of walls 44. Each wall portion 44 is provided so as to surround the bathtub 40 and the washing area floor 42. The ceiling part 46 is provided on each wall part 44 and closes the upper part of the space surrounded by each wall part 44. The bathroom unit 2 may have a plurality of ceiling parts 46. In the bathroom unit 2, the upper part of each wall part 44 may be closed with one ceiling part 46, or the upper part of each wall part 44 may be closed with a plurality of ceiling parts 46. In other words, the wall portion 44 is a wall panel. In other words, the ceiling portion 46 is a ceiling panel.

The bathroom unit 2 is, for example, a so-called unit bath or system bath in which a bathtub 40, a washing area floor 42, surrounding walls 44, a ceiling 46, and the like are unitized. The bathroom unit 2 is installed inside the building frame and forms a bathroom BR inside the building frame. The washing area floor 42 forms a floor surface 42a of the bathroom BR. Each wall portion 44 forms a bathroom wall 44a of the bathroom BR.

The lighting device 10 is provided in the bathroom unit 2, and illuminates the inside of the bathroom BR by illumination light emitted from each of the first lighting section 21, the second lighting section 22, the third lighting section 23, and the fourth lighting section 24. Do lighting. In other words, the lighting device 10 brightens the inside of the bathroom BR with the illumination light emitted from each of the first lighting section 21, the second lighting section 22, the third lighting section 23, and the fourth lighting section 24.

The bathroom unit 2 may further include, for example, a door member for entering and exiting the bathroom BR. Further, in the bathroom unit 2, the first counter 11, the second counter 12, the bathtub 40, the washing area floor 42, each wall section 44, the ceiling section 46, the mirror 48, etc. are provided as necessary and can be omitted. .

The washing area floor 42 has a drain port 42b for discharging hot water flowing on the floor surface 42a to the outside. The drain port 42b is provided adjacent to the bathtub 40, for example. The drain port portion 42b is provided, for example, near the center of the bathroom BR.

The first counter 11 and the second counter 12 are used by being attached to the bathroom wall 44a of the wall portion 44. The first counter 11 and the second counter 12 are attached, for example, to a bathroom wall 44a that is continuous with the floor surface 42a of the washing area floor 42.

In this example, the first counter 11 and the second counter 12 are attached to a bathroom wall 44a extending in the direction in which the bathtub 40 and the washing area floor 42 are lined up. 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.

The first counter 11 does not necessarily have to extend to the bathtub 40 side. The first counter 11 may be disposed at least 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.

The first lighting section 21 is provided on the ceiling section 46. The first lighting section 21 illuminates the inside of the bathroom BR by emitting illumination light downward from the ceiling section 46, for example. The first lighting section 21 is a so-called downlight. The bathroom unit 2 includes, for example, a plurality of first lighting sections 21. In this example, the bathroom unit 2 has four first lighting sections 21 arranged near the four corners of a rectangular ceiling section 46. The number of first illumination units 21 is not limited to a plurality, and may be one. Further, the first lighting section 21 is not limited to a downlight, and may be, for example, a lighting fixture that is used by being attached to the wall section 44. The first lighting unit 21 may be any lighting fixture that can brighten the interior of the bathroom BR.

The first counter 11 is arranged below the first lighting section 21. The first counter 11 includes a counter main body 60 and a water spouting part 61. The counter main body 60 has an upper surface 60a formed in the shape of a shelf so that articles such as shampoo bottles can be placed thereon. The water spouting part 61 is provided at the lower part of the counter main body 60, and has a water spout 61a that spouts hot water. In other words, the water spouting part 61 is a spout. In this way, the first counter 11 functions as a counter on which articles can be placed, and also functions as a faucet that discharges hot water. In other words, the first counter 11 is a faucet counter. However, the first counter 11 does not necessarily have to function as a faucet.

The second illumination unit 22 irradiates illumination light downward to the first counter 11. The second counter 12 is arranged below the first counter 11 and the second lighting section 22. The second illumination unit 22 irradiates illumination light toward the upper surface 80a of the second counter 12, for example. Thereby, the space below the first counter 11 can be brightened. For example, the water flow discharged from the first counter 11, the upper surface 80a of the second counter 12, etc. can be brightened.

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

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 articles such as a wash basin can be placed. The support section 81 connects the shelf section 80 and the bathroom wall 44a, and supports the shelf section 80 on the bathroom wall 44a.

In this way, the second counter 12 allows a washbasin to be placed below the first counter 11, so that hot water discharged from the first counter 11 can be received by the washbasin. In other words, the second counter 12 is a sink counter. The configuration of the second counter 12 is not limited to the configuration having the shelf portion 80 and the support portion 81, and may be any configuration on which at least a wash basin can be placed.

The mirror 48 is provided above the first counter 11, for example, so that a user sitting on a bath chair or the like placed on the washing area floor 42 can check his or her face.

The third illumination unit 23 irradiates illumination light downward to the second counter 12. More specifically, the third illumination unit 23 irradiates illumination light toward the floor surface 42a below the second counter 12. The third lighting section 23 directly irradiates light toward the washing area floor 42 below the second counter 12. Thereby, the space below the second counter 12, the floor surface 42a, etc. can be brightened.

As shown in FIG. 2, the first lighting section 21 and the second lighting section 22 are located above the top surface 40a of the bathtub 40. On the other hand, the third lighting section 23 is located below the upper surface 40a of the bathtub 40. The direct light from the third lighting section 23 is irradiated below the upper surface 40a of the bathtub 40. In other words, the third lighting section 23 is located below the top surface 40a of the bathtub 40 and directly irradiates light below the top surface 40a of the bathtub 40.

The bathtub 40 includes, for example, a water discharge device (not shown) that discharges hot water into the bathtub 40 . For example, the water discharging device discharges hot water from a spout toward the neck and shoulders of a bather whose back is in contact with a backrest surface. Thereby, for example, it is possible to further warm the neck and shoulders of the bather, or to give a massage effect to the neck and shoulders of the bather, thereby further enhancing the relaxation effect during bathing.

The fourth lighting section 24 is provided in the bathtub 40. The fourth lighting section 24 is provided, for example, at the upper edge of the bathtub 40. The fourth lighting section 24 illuminates, for example, the bathtub 40 or hot water discharged into the bathtub 40 from the water discharging device. Thereby, the appearance of the bathtub 40 can be improved. For example, by irradiating the illumination light from the rear side of the bather whose back is in contact with the backrest surface of the bathtub 40, the surroundings of the bather can be illuminated while suppressing direct light entering the bather's eyes. It can be brightened and the relaxing effect for bathers can be further enhanced.

FIG. 3 is a block diagram schematically showing the electrical configuration of the lighting device according to the embodiment.
As shown in FIG. 3, in the lighting device 10, the control unit 30 is electrically connected to each of the first lighting unit 21, the second lighting unit 22, the third lighting unit 23, and the fourth lighting unit 24. There is.

The control unit 30 controls turning on and off of each 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 the lighting of the first lighting unit 21, the second lighting unit 22, and the fourth lighting unit 24. 22, the third lighting section 23, and the fourth lighting section 24.

The first lighting section 21, the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 include, for example, a plurality of light emitting elements having different color temperatures. The control unit 30 controls the irradiation from each of the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 by controlling the magnitude of the current flowing through each light emitting element, for example. At least one of the luminous flux value and the color temperature of the light is controlled.

The control section 30 is provided, for example, on the ceiling section 46 (see FIGS. 1 and 2). In other words, the control section 30 is provided in the space between the ceiling section 46 and the building frame. The position of the control unit 30 is not limited to the above, and may be any position where the lighting and extinguishing of each lighting unit can be controlled.

FIG. 4 is a table schematically showing an example of the operation of the control section.
As shown in FIG. 4, the control unit 30 operates in a plurality of illumination modes in which the lighting states of the first illumination unit 21, the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 are changed. has. The control unit 30 has, for example, a bright mode, a medium mode, a dark mode, a meditation mode, a super meditation mode, a fluctuation lighting mode, and a lights-off mode.

The bright mode is an illumination mode in which each of the first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24 are turned on.

In the bright mode, the control unit 30 sets 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 to about 4700K (for example, 4500K or more). 5000K or less). In other words, in the bright mode, the control unit 30 changes 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 to neutral white. Set to .

In FIG. 4, within one illumination mode, the one with the largest luminous flux value of the light irradiated from each of the first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24 is shown. "1", the next largest one is "2", the next largest one is "3", the smallest one is "4", and the one that turns off the light is "extinguished".

In the bright mode, the control unit 30 makes the luminous flux value of the light irradiated from the first illumination unit 21 larger than the luminous flux value of the light irradiated from the second illumination unit 22, and controls the luminous flux value of the light irradiated from the second illumination unit 22. The luminous flux value of the light emitted from the third illumination section 23 is made larger than the luminous flux value of the light emitted from the third illumination section 23, and the luminous flux value of the light emitted from the third illumination section 23 is made larger than the luminous flux value of the light emitted from the fourth illumination section 24. Make it greater than the value.

In this way, in the bright mode, the color temperature of the light emitted from each of the first illumination section 21, second illumination section 22, third illumination section 23, and fourth illumination section 24 is set to about 4700K, and The luminous flux value of the light emitted from the first illumination unit 21, which is installed at a high height, is maximized. Thereby, in the bright mode, it is possible to simulate the sun's altitude and brightness during the daytime, for example, and enhance the refreshing effect for bathers.

In the medium mode, each of the first lighting section 21, the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 are turned on, and the first lighting section 21, the second lighting section 22, and the third lighting section are turned on. 23 and the fourth illumination section 24 from each of the first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24 in the bright mode. This is a lighting mode in which the color temperature is lower than the color temperature of the irradiated light.

In the medium mode, the control unit 30 sets 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 to about 3500K (for example, 3000K or more). 4000K or less). In other words, in the medium mode, the control unit 30 changes 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 to warm white. Set to .

In the medium mode, the control unit 30 makes the luminous flux value of the light irradiated from the first illumination unit 21 larger than the luminous flux value of the light irradiated from the second illumination unit 22, and The luminous flux value of the light emitted from the third illumination section 23 is made larger than the luminous flux value of the light emitted from the third illumination section 23, and the luminous flux value of the light emitted from the third illumination section 23 is made larger than the luminous flux value of the light emitted from the fourth illumination section 24. Make it greater than the value.

Further, in the medium mode, the control unit 30 changes the luminous flux value 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 bright mode. The luminous flux value is set to be smaller than the luminous flux value of the light emitted from each of the first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24. In the medium mode, for example, the control unit 30 changes the luminous flux value 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 to the bright mode. The luminous flux value is set to be 50% or more smaller than the luminous flux value of the light emitted from each of the first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24.

In this way, in the medium mode, the color temperature of the light emitted from each of the first illumination section 21, second illumination section 22, third illumination section 23, and fourth illumination section 24 is set to about 3500K, and The luminous flux value of the light emitted from each of the illumination units 21 to 24 is made smaller than in the bright mode. As a result, in the medium mode, for example, the height and brightness of the sun at sunset can be simulated to enhance the relaxing effect on the bather.

In the dark mode, the first lighting section 21, the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 are turned on, and the first lighting section 21, the second lighting section 22, and the third lighting section are turned on. 23 and the fourth illumination section 24 from each of the first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24 in the medium mode. This is a lighting mode in which the color temperature is lower than the color temperature of the irradiated light.

In the dark mode, the control unit 30 sets 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 to about 2700K (for example, 2500K or more). 3000K or less). In other words, in the dark mode, the control unit 30 changes 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 to the color of a light bulb. Set to .

In the dark mode, the control unit 30 makes the luminous flux value of the light irradiated from the first illumination unit 21 larger than the luminous flux value of the light irradiated from the second illumination unit 22, and The luminous flux value of the light emitted from the third illumination section 23 is made larger than the luminous flux value of the light emitted from the third illumination section 23, and the luminous flux value of the light emitted from the third illumination section 23 is made larger than the luminous flux value of the light emitted from the fourth illumination section 24. Make it greater than the value.

Further, in the dark mode, the control unit 30 changes the luminous flux value of the light irradiated 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. The luminous flux value is set to be smaller than the luminous flux value of the light emitted from each of the first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24. In the dark mode, for example, the control unit 30 changes the luminous flux value 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 to the medium mode. The luminous flux value is set to be 50% or more smaller than the luminous flux value of the light emitted from each of the first illumination section 21, the second illumination section 22, the third illumination section 23, and the fourth illumination section 24.

In this way, in the dark mode, the color temperature of the light emitted from each of the first illumination section 21, second illumination section 22, third illumination section 23, and fourth illumination section 24 is set to about 2700K, and The luminous flux value of the light emitted from each of the illumination units 21 to 24 is made smaller than in the medium mode. As a result, in the dark mode, for example, the height and brightness of the sun at dusk can be simulated, and the relaxing effect for bathers can be further enhanced.

The meditation mode is a lighting mode in which the first lighting section 21 is turned off and each of the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 is turned on.

In the meditation mode, the control unit 30 sets 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 to approximately 2400K (for example, 2200K or more and 2500K or less). . In other words, in the meditation mode, the control unit 30 sets the color temperature of the light emitted from each of 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 morning sun or sunset. Set to .

In the meditation mode, the control unit 30 makes the luminous flux value of the light irradiated from the second illumination unit 22 larger than the luminous flux value of the light irradiated from the third illumination unit 23, and The luminous flux value of the light emitted from the fourth illumination unit 24 is made larger than the luminous flux value of the light emitted from the fourth illumination unit 24.

The control unit 30 also controls the luminous flux value of the light emitted from each of the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 in the meditation mode, and the luminous flux value of the light emitted from the second illumination unit 22 in the dark mode. , the third illumination section 23, and the fourth illumination section 24, respectively. In the meditation mode, the control unit 30 controls the luminous flux value of the light emitted from each of the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24, and the second illumination unit 22 in the dark mode. , the third lighting section 23, and the fourth lighting section 24, respectively.

The control unit 30 adjusts 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 bright mode, and the color temperature of the light emitted from the second illumination unit 24 in the meditation mode. The color temperature is set higher than the color temperature of the light emitted from each of the section 22, the third illumination section 23, and the fourth illumination section 24.

In this way, in the meditation mode, the first lighting section 21 is turned off, and the color temperature of the light emitted from each of the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 is set to about 2400K. At the same time, the luminous flux value of the light emitted from each of the illumination units 22 to 24 is made smaller than in the dark mode. As a result, in the meditation mode, for example, the height and brightness of the sun at sunset can be simulated to further enhance the relaxing effect on the bather.

In the super meditation mode, the first lighting section 21 is turned off, the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 are turned on; The color temperature of the light emitted from each of the four lighting sections 24 is lower than the color temperature of the light emitted from each of the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 in the meditation mode. Lighting mode.

In the super meditation mode, the control unit 30 sets 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 to approximately 2000K (for example, 1800K or more and 2300K or less). do. In other words, in the super meditation mode, the control unit 30 changes 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 to the color of a flame of a candle or the like. Set to a similar color.

In the super meditation mode, the control unit 30 makes the luminous flux value of the light irradiated from the second illumination unit 22 larger than the luminous flux value of the light irradiated from the third illumination unit 23, and controls the irradiation from the third illumination unit 23. The luminous flux value of the light emitted from the fourth illumination unit 24 is made larger than the luminous flux value of the light emitted from the fourth illumination unit 24.

In addition, the control unit 30 controls the luminous flux value of the light emitted from each of the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 in the super meditation mode, and 22, the third illumination section 23, and the fourth illumination section 24, respectively. In the super meditation mode, the control unit 30 controls the luminous flux values of the lights emitted from each of the second illumination unit 22, the third illumination unit 23, and the fourth illumination unit 24 in the super meditation mode, and 22, the third illumination section 23, and the fourth illumination section 24, respectively, by 50% or more of the luminous flux value.

In this way, in the super meditation mode, the first lighting section 21 is turned off, and the color temperature of the light emitted from each of the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 is set to about 2000K. At the same time, the luminous flux value of the light emitted from each illumination unit 22 to 24 is made smaller than in the meditation mode. As a result, in the super meditation mode, for example, the altitude and brightness of the sun at sunset and sunrise can be simulated to further enhance the relaxing effect on bathers.

In the fluctuation lighting mode, the third lighting section 23 is turned on, the first lighting section 21, the second lighting section 22, and the fourth lighting section 24 are turned off, and the luminous flux of the illumination light emitted from the third lighting section 23 is changed. This is a lighting mode with a fluctuation pattern in which at least one of the value and color temperature is increased or decreased.

Note that in the fluctuation lighting mode, the first lighting section 21, the second lighting section 22, and the fourth lighting section 24 do not necessarily have to be turned off. In the fluctuation illumination mode, the third illumination section 23 is turned on, and the luminous flux value of the light emitted from each of the first illumination section 21, the second illumination section 22, and the fourth illumination section 24 is irradiated from the third illumination section 23. The illumination mode may have a fluctuation pattern in which at least one of the luminous flux value and the color temperature of the light irradiated from the third illumination section 23 is set smaller than the luminous flux value of the light emitted from the third illumination section 23.

The lighting device 10 does not necessarily have to include the first lighting section 21, the second lighting section 22, and the fourth lighting section 24. The lighting device 10 only needs to have at least the third lighting section 23 for performing the fluctuation lighting mode. The first lighting section 21, the second lighting section 22, and the fourth lighting section 24 may be, for example, lighting fixtures provided in the bathroom unit 2 separately from the lighting device 10.

The lights-off mode is a lighting mode in which each of the first lighting section 21, the second lighting section 22, the third lighting section 23, and the fourth lighting section 24 is turned off.

As shown in FIG. 3, the lighting device 10 further includes, for example, a switch 32, a lighting switch 34, and a storage section 36. The switch 32 is electrically connected to the control section 30. The switch 32 is attached, for example, to the outer wall surface of the bathroom BR (for example, the wall surface of the dressing room) or to the bathroom wall 44a inside the bathroom BR. The switch 32 instructs the control unit 30 to turn on and off each of the lighting units 21 to 24. The control unit 30 lights up each of the lighting units 21 to 24 in response to a lighting instruction from the switch 32. The control unit 30 lights up each of the lighting units 21 to 24 in the bright mode, for example, in response to a lighting instruction from the switch 32. Further, the control unit 30 turns off each of the lighting units 21 to 24 in response to a turn-off instruction from the switch 32.

The lighting switch 34 is electrically connected to the control unit 30. The light switch 34 is attached to, for example, a bathroom wall 44a in the bathroom BR or an inner wall of the bathtub 40. The lighting switch 34 is a switch for switching between multiple lighting modes.

The control unit 30 sequentially switches the plurality of lighting modes in order from the higher side of at least one of the luminous flux value and color temperature, or in the order from the lower side of at least one of the luminous flux value and color temperature, in accordance with the operation of the lighting switch 34. .

The lighting switch 34 has a first operation section for instructing switching to a dark direction, a second operation section for instructing switching to a bright direction, and a third operation section for instructing stop of dimming control. It has a section and a.

For example, the control unit 30 sets a plurality of illumination modes in the order of bright mode, medium mode, dark mode, meditation mode, super meditation mode, fluctuation illumination mode, and lights-off mode in accordance with the operation of the first operation part of the illumination switch 34. Switch sequentially.

For example, in response to the operation of the second operation part of the lighting switch 34, the control unit 30 operates in the order of lights-out mode, fluctuation lighting mode, super meditation mode, meditation mode, dark mode, medium mode, and bright mode, contrary to the above. , sequentially switch between multiple lighting modes.

For example, when the third operation part of the lighting switch 34 is operated, the control unit 30 switches the current lighting mode to the bright mode, regardless of which lighting mode among the plurality of lighting modes is set. As a result, for example, when the user wants to brighten the room by leaving the bathroom BR after setting the flickering lighting mode or the like, it is possible to reduce the effort of having to operate the second operation unit many times.

The storage unit 36 stores a control signal 38 for executing a fluctuation illumination mode of a fluctuation pattern in which at least one of the luminous flux value and color temperature of the illumination light emitted from the third illumination unit 23 (illumination unit) is adjusted in strength. are doing. The control unit 30 executes the fluctuation illumination mode by reading the control signal 38 from the storage unit 36 and controlling the irradiation of illumination light from the third illumination unit 23 based on the control signal 38.

FIG. 5 is an explanatory diagram schematically representing an example of a control signal.
FIG. 5 shows an example of a signal input from the lighting switch 34 to the control unit 30, an example of a control signal set for the second lighting unit 22, and a control signal set for the third lighting unit 23 ( An example of the control signal 38) is schematically shown. The storage unit 36 stores, for example, a plurality of control signals set for each of the lighting units 21 to 24 and for each lighting mode. For example, the control unit 30 refers to the storage unit 36 in response to the operation of the lighting switch 34, reads out control signals for each of the lighting units 21 to 24 corresponding to the set lighting mode from the storage unit 36, and uses the read control signals. The irradiation of illumination light from each of the illumination units 21 to 24 is controlled based on the following. This controls the lighting and extinguishing of each of the lighting sections 21 to 24 according to the set lighting mode, and at least changes the luminous flux value and color temperature of the light emitted from each of the lighting sections 21 to 24. One can be controlled.

FIG. 5 schematically shows an example of each control signal when switching the lighting mode from the off mode to the fluctuation lighting mode in response to the operation of the lighting switch 34. As shown in FIG. 5, the control signal 38 for executing the fluctuation illumination mode is a signal expressing at least one of the luminous flux value and color temperature of illumination light for a predetermined period of time.

The control signal 38 has a first period P1 and a second period P2. The second period P2 is a period that includes a plurality of frequency components and expresses a fluctuation pattern. In other words, the second period P2 is a period in which a fluctuation pattern is expressed by a composite wave that is a combination of a plurality of waves having different frequencies.

The first period P1 is shorter than the second period P2 and is executed before the second period P2. The frequency components included in the first period P1 are smaller than the frequency components included in the second period P2. The length of the first period P1 is, for example, 0.01 seconds or more and 3 seconds or less.

The control unit 30 executes the first period P1 at the start of the fluctuation illumination mode, and executes the second period P2 after the first period P1. The control signal 38 is such that at least one of the luminous flux value and color temperature of the illumination light at the end of the first period P1 is lower than at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode. At least one of the luminous flux value and color temperature of the illumination light in the first period P1 is set so as to be close to at least one of the luminous flux value and color temperature of the illumination light at the start of P2. In the example shown in FIG. 5, the control signal 38 indicates that at least one of the luminous flux value and color temperature of the illumination light at the end of the first period P1 is higher than at least one of the luminous flux value and color temperature of the illumination light in the lights-out mode. , at least one of the luminous flux value and color temperature of the illumination light in the first period P1 is set so as to be close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2.

The first period P1 is, for example, from a value close to at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode to a value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. This is a period in which at least one of the luminous flux value and color temperature of illumination light is gradually changed so that it approaches a value close to . In the example shown in FIG. 5, the first period P1 changes from a value close to at least one of the luminous flux value and color temperature of the illumination light in the lights-out mode to a value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. At least one of the luminous flux value and the color temperature of the illumination light is gradually changed so as to approach a value close to at least one of the values. The luminous flux value of the illumination light in the lights-off mode is, for example, 0 lm (lumens). The color temperature of the illumination light in the lights-off mode is, for example, 0K (Kelvin).

For example, the control signal 38 may change the value of at least one of the luminous flux value and color temperature of the illumination light at the start of the first period P1 to the value of at least one of the luminous flux value and color temperature of the illumination light at the end of the lights-out mode. Make it the same. Further, the control signal 38 may, for example, change at least one of the luminous flux value and color temperature of the illumination light at the end of the first period P1 to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. Make one value the same.

In the first period P1, the control signal 38 changes, for example, the luminous flux value and color temperature of the illumination light at the start of the second period P2 from at least one of the luminous flux value and color temperature of the illumination light at the end of the lights-out mode. At least one of the luminous flux value and the color temperature of the illumination light is gradually changed to at least one of the temperature values. Thereby, it is possible to suppress flickering of the illumination light of the third illumination section 23 when switching from the off mode to the fluctuation illumination mode.

For example, the control signal 38 linearly changes at least one of the luminous flux value and color temperature of the illumination light during the first period P1. In other words, the control signal 38 changes, in the first period P1, from at least one of the luminous flux value and color temperature of the illuminating light at the end of the lights-out mode to the luminous flux value and color temperature of the illuminating light at the start of the second period P2. At least one of the luminous flux value of illumination light and the color temperature is linearly changed to at least one of the color temperature values. Here, "linear change" or "linear change" refers to a temporal change when viewed in the entire first period P1, and when viewed in minute time, it is a temporal change in a stepwise manner. Needless to say, it includes forms that change over time.

For example, the first period P1 does not substantially include a frequency component. However, the change in at least one of the luminous flux value and color temperature of the illumination light during the first period P1 is not limited to a linear change. For example, the control signal 38 may change at least one of the luminous flux value and color temperature of the illumination light in a stepwise manner during the first period P1. For example, the control signal 38 may change at least one of the luminous flux value and color temperature of the illumination light in a curved manner during the first period P1. For example, the control signal 38 may change at least one of the luminous flux value and color temperature of the illumination light in a waveform during the first period P1. For example, the first period P1 may include fewer frequency components than the frequency components included in the second period P2. Specifically, it may be composed of one frequency component, and the range of variation in at least one of the luminous flux value and color temperature of the illumination light in this case is the luminous flux value and color temperature of the illumination light in the second period P2. It is preferable that the period is smaller than the variation range of at least one of the temperatures, and the period of one frequency component is preferably the same as the first period P1 or longer than the first period P1. Further, the first period P1 may include, for example, a component of fluctuation based on measurement error or the like.

Further, the value of at least one of the luminous flux value and color temperature of the illumination light at the start of the first period P1 is not necessarily the same as the value of at least one of the luminous flux value and color temperature of the illumination light at the end of the lights-out mode. Good too. The value of at least one of the luminous flux value and color temperature of the illumination light at the end of the first period P1 is not necessarily the same as the value of at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. Good too.

The change in at least one of the luminous flux value and color temperature of the illumination light in the first period P1 is changed from a value close to at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode, to a value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. Any change may be used to gradually change at least one of the luminous flux value and color temperature of the illumination light so that it approaches a value close to at least one of the luminous flux value and color temperature of the illumination light.

FIG. 6 is an explanatory diagram schematically representing an example of a control signal.
FIG. 6 schematically represents an example of each control signal when switching the lighting mode from the super meditation mode to the fluctuation lighting mode in response to the operation of the lighting switch 34.

In the example shown in FIG. 6, the first period P1 changes from a value close to at least one of the luminous flux value and color temperature of the illumination light in the super meditation mode to the luminous flux value and color temperature of the illumination light at the start of the second period P2. At least one of the luminous flux value and the color temperature of the illumination light is gradually changed so that the luminous flux value and the color temperature of the illumination light approach at least one of the values.

For example, the control signal 38 changes at least one of the luminous flux value and color temperature of the illumination light at the start of the first period P1 to at least one of the luminous flux value and color temperature of the illumination light at the end of the super meditation mode. Make it the same as. Further, the control signal 38 may, for example, change at least one of the luminous flux value and color temperature of the illumination light at the end of the first period P1 to at least one of the luminous flux value and color temperature of the illumination light at the beginning of the second period P2. Make one value the same.

In the first period P1, the control signal 38 changes, for example, from at least one of the luminous flux value and color temperature of the illuminating light at the end of the super meditation mode to the luminous flux value and color temperature of the illuminating light at the start of the second period P2. At least one of the luminous flux value and the color temperature of the illumination light is gradually changed to at least one of the color temperature values. Thereby, flickering of the illumination light of the third illumination section 23 can be suppressed even when switching from the super meditation mode to the fluctuation illumination mode.

In this way, when at least one of the luminous flux value and the color temperature of the illumination light is changed in the first period P1, the luminous flux value and the color temperature of at least one of the illumination light at the start of the first period P1 are changed as follows. It may change depending on the luminous flux value and color temperature of the illumination light immediately before starting the fluctuation illumination mode.

In this case, for example, the control signal 38 for the super meditation mode and the control signal 38 for the lights-out mode may be stored in the storage unit 36 in advance. Alternatively, for example, the first period P1 for the super meditation mode and the first period P1 for the lights-out mode may be stored in the storage unit 36 in advance.

Note that the lighting mode executed before the fluctuation lighting mode is not limited to the super meditation mode, and may be any lighting mode. In this way, the control unit 30 executes the first period P1 when switching from the lights-off mode to the fluctuating illumination mode or from another illumination mode to the fluctuating illumination mode. The other illumination mode may, for example, make the fluctuation in at least one of the luminous flux value and color temperature of the light emitted from the third illumination section 23 smaller than the fluctuation in the second period P2 of the fluctuation illumination mode, or stop the fluctuation. Lighting mode. Another illumination mode is, for example, an illumination mode in which the luminous flux value and color temperature of the light emitted from the third illumination section 23 are made substantially constant. For example, in the first period P1, the control signal 38 changes from a value close to at least one of the luminous flux value and color temperature of the illumination light at the end of another illumination mode to the luminous flux of the illumination light at the start of the second period P2. At least one of the luminous flux value and the color temperature of the illumination light is gradually changed to a value close to at least one of the luminous flux value and the color temperature.

Note that at least one of the luminous flux value and color temperature of the light emitted from the third illumination unit 23 in the illumination mode executed before the fluctuation illumination mode is the same as that of the light emitted from the third illumination unit 23 at the start of the second period P2. Although a case has been described in which the luminous flux value and color temperature of the light is different from at least one of the luminous flux value and color temperature of the light emitted from the third illumination unit 23 in the illumination mode executed before the fluctuation illumination mode, at least one of the luminous flux value and the color temperature of the light is the same as at least one of the luminous flux value and color temperature of the light emitted from the third illumination section 23 at the start of the second period P2, the light emitted from the third illumination section 23 during the first period P1 At least one of the luminous flux value and color temperature may be constant.

Further, the state immediately before the start of the fluctuation lighting mode is not limited to the lights-off mode based on the operation of the lighting switch 34, and may be, for example, the lights-off state based on the operation of the switch 32. For example, the control unit 30 may execute the first period P1 when starting the fluctuation illumination mode from a non-lighted state in which each of the lighting units 21 to 24 is turned off.

The control signal 38 sets the color temperature of the light emitted from the third illumination section 23 to 1800K or more and 2300K or less in the fluctuation illumination mode. In other words, the control signal 38 changes the color temperature of the light emitted from the third illumination section 23 in the range of 1800K or more and 2300K or less in the fluctuation illumination mode. Thereby, in the fluctuation lighting mode, it is possible to simulate, for example, the fluctuation of a flame such as a candle.

The control signal 38 sets the range of variation in the luminous flux value of the light emitted from the third illumination section 23 in the fluctuation illumination mode to a range of 0.5 times or more and 1.5 times or less with respect to 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 super meditation mode.

For example, the control signal 38 changes at least one of the luminous flux value and color temperature of the illumination light at the start of the first period P1 to 0, the luminous flux value and at least one of the color temperature of the illumination light immediately before the start of the fluctuation illumination mode. .Set within the range of 5 times or more and 1.5 times or less. For example, the control signal 38 changes at least one of the luminous flux value and color temperature of the illumination light at the end of the first period P1 to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. Set within the range of 0.5 times or more and 1.5 times or less of the value. This suppresses rapid changes in the luminous flux value and color temperature of the illumination light at the start of the first period P1 and at the end of the first period P1, and at the start of the first period P1 and the end of the first period P1. Flickering of illumination light can be suppressed.

A value close to the luminous flux value of the illumination light immediately before the start of the fluctuation illumination mode is, for example, a value of the luminous flux value in the range of 0.5 times or more and 1.5 times or less of the luminous flux value of the illumination light immediately before the start of the fluctuation illumination mode. It is. A value close to the color temperature of the illumination light immediately before the start of the fluctuation lighting mode is, for example, a color temperature value in the range of 0.5 times or more and 1.5 times or less of the color temperature of the illumination light immediately before the start of the fluctuation lighting mode. It is.

A value close to the luminous flux value of the illumination light at the start of the second period P2 is, for example, a luminous flux value in a range of 0.5 times or more and 1.5 times or less of the luminous flux value of the illumination light at the start of the second period P2. is the value of A value close to the color temperature of the illumination light at the start of the second period P2 is, for example, a color temperature in the range of 0.5 times or more and 1.5 times or less of the color temperature of the illumination light at the start of the second period P2. is the value of

Further, the fluctuation pattern in the second period P2 of the fluctuation illumination mode is, for example, a 1/f fluctuation pattern based on the characteristics of 1/f fluctuation. For example, the control signal 38 sets the fluctuation pattern of the second period P2 to a 1/f fluctuation pattern based on the characteristics of 1/f fluctuation. The 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 (having a 1/f slope). be.

FIG. 7 is a graph schematically showing an example of the operation of the control section.
As shown in FIG. 7, the control signal 38 and the control unit 30 are configured such that, for example, the horizontal axis represents the frequency component f of the light emitted from the third illumination unit 23, and the illuminance of the light emitted from the third illumination unit 23 ( Energy) The slope of the regression line of the energy distribution (spectral density) with P as the vertical axis satisfies the relationship P=1/f. For example, the control signal 38 and the control unit 30 set the slope of the regression line of the energy distribution to −1±0.5. Thereby, the fluctuation pattern of the second period P2 can be set to a 1/f fluctuation pattern based on the characteristics of 1/f fluctuation. In other words, the 1/f fluctuation pattern is a state in which the slope of the regression line of the energy distribution is set in the range of -1±0.5.

The second period P2 of the control signal 38 is generated by, for example, generating a random waveform using random numbers, and then processing the waveform so that the higher the frequency component, the more the energy (illuminance) is attenuated. is generated into a waveform with The control unit 30 controls the irradiation of light from the third illumination unit 23 based on the waveform of the control signal 38 generated as described above. Thereby, the control unit 30 realizes an illumination mode of a 1/f fluctuation pattern in which at least one of the luminous flux value and color temperature of the light emitted from the third illumination unit 23 is increased or decreased.

For example, the control unit 30 supplies, to each of the plurality of light emitting elements of the third illumination unit 23, a current having a magnitude corresponding to a waveform having a 1/f fluctuation characteristic, based on the control signal 38. Thereby, the luminous flux value and color temperature of the light emitted from the third illumination section 23 can be varied in a pattern of 1/f fluctuation.

For example, a plurality of control signals 38 corresponding to each of the plurality of light emitting elements of the third lighting section 23 are stored in advance in the storage section 36, and based on the plurality of control signals 38, different waveforms are generated for each light emitting element having a different color temperature. It may be possible to supply a current of Thereby, for example, controllability of fluctuations in the luminous flux value and color temperature of the light emitted from the third illumination section 23 can be further improved.

Note that the plurality of illumination modes set in the control unit 30 are not necessarily limited to the above. The plurality of illumination modes may include more illumination modes in which the lighting states of each of the illumination units 21 to 24 are changed. It is sufficient that the plurality of illumination modes include at least a fluctuation illumination mode.

As described above, in the bathroom unit 2 and the lighting device 10 according to the present embodiment, by executing the first period P1 with few frequency components before the second period P2 expressing the fluctuation pattern, It is possible to suppress flickering in the luminous flux value and color temperature of the illumination light when switching modes, and to reduce stimulation of the user's (bathing person's) pupils. Furthermore, by making the temporal length of the first period P1 shorter than the temporal length of the second period P2 that expresses the fluctuation pattern, even if the control signal 38 is executed, the user can receive illumination light without fluctuation. It can be made difficult to feel. For example, it is possible to prevent the first period P1 from interfering with the relaxing effect. Therefore, it is possible to provide the lighting device 10 that can suppress flickering of light when switching to the illumination mode with a fluctuation pattern.

In the bathroom unit 2 and the lighting device 10, the fluctuation pattern in the second period P2 is a 1/f fluctuation pattern based on the characteristics of 1/f fluctuation. In this way, by allowing the user to enjoy the light of the 1/f fluctuation pattern, the relaxing effect of the user can be further enhanced.

In the bathroom unit 2 and the lighting device 10, the length of the first period P1 is 0.01 seconds or more and 3 seconds or less. In this way, by setting the temporal length of the first period P1 within a specified range, it is possible to make it difficult for the user to perceive the illumination light without fluctuation, and to further enhance the relaxing effect on the user.

In the bathroom unit 2 and the lighting device 10, the first period P1 changes from a value close to at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation lighting mode to the luminous flux of the illumination light at the start of the second period P2. This is a period in which at least one of the luminous flux value and color temperature of illumination light is gradually changed so that at least one of the luminous flux value and color temperature of the illumination light approaches a value close to at least one of the luminous flux value and color temperature. In this way, by setting the first period P1 as a period in which at least one of the luminous flux value and color temperature of the illumination light is gradually changed, flickering of the luminous flux value and color temperature of the illumination light when switching to the fluctuation lighting mode can be prevented. It can be suppressed more appropriately.

In the bathroom unit 2 and the lighting device 10, the control signal 38 changes at least one of the luminous flux value and color temperature of the illumination light at the end of the first period P1 to the luminous flux value of the illumination light at the start of the second period P2. and color temperature. Thereby, the first period P1 and the second period P2 can be made continuous without interruption, and it is possible to suppress interruptions in illumination light and color scattering. Flickering of the illumination light at the timing of switching from the first period P1 to the second period P2 can be more appropriately suppressed, and the relaxing effect for the user can be further enhanced.

In the bathroom unit 2 and the lighting device 10, the control signal 38 sets the color temperature of the illumination light emitted from the lighting section in the fluctuation lighting mode to 1800K or more and 2300K or less. As a result, the color temperature of the light in the fluctuation pattern can be brought closer to the color of a flame such as a candle, which has a relaxing effect, and the relaxing effect for the user can be further enhanced.

In the bathroom unit 2 and the lighting device 10, the control signal 38 sets the range of variation in the luminous flux value of the illumination light emitted from the third lighting section 23 during the second period P2 to 0.5 times or more 1. Set to a range of 5 times or less. As a result, the range of fluctuations in the brightness of the light in the fluctuation pattern can be set within the range in which people can recognize changes in brightness, making it easier to recognize the light in the fluctuation pattern, and increasing the relaxing effect for users. can be increased.

FIG. 8 is an explanatory diagram schematically showing a modified example of the control signal.
FIG. 8 schematically shows a modification of the control signal 38 when switching the lighting mode from the super meditation mode to the fluctuation lighting mode in response to the operation of the lighting switch 34.

As shown in FIG. 8, in this example, the first period P1 of the control signal 38 changes at least one of the luminous flux value and color temperature of the illumination light to the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode. This is a period in which the luminous flux value and the color temperature of the illumination light are kept constant at a value closer to at least one of the luminous flux value and the color temperature of the illumination light at the start of the second period P2 than at least one of the above.

In the first period P1, for example, at least one of the luminous flux value and color temperature of the illumination light is changed to at least one of the luminous flux value and color temperature of the illumination light in the super meditation mode, and at least one of the luminous flux value and color temperature of the illumination light in the lights-out mode. This is a period in which the luminous flux value and the color temperature of the illumination light are kept constant at a value closer to at least one of the luminous flux value and the color temperature of the illumination light at the start of the second period P2 than at least one of them.

In this way, when the luminous flux value and color temperature of the illumination light in the first period P1 are kept constant, for example, when switching from lights-off mode (lights-off state), and when switching from super meditation mode (another lighting mode) One control signal 38 can be used in common for each case of switching from. However, even if the luminous flux value and color temperature of the illumination light in the first period P1 are kept constant, the control signal 38 for the lights-out mode and the control signal 38 for the super meditation mode may be provided. .

For example, the control signal 38 sets at least one of the luminous flux value and color temperature of the illumination light in the first period P1 to substantially the same value as at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. constant. More specifically, the control signal 38 makes the luminous flux value of the illumination light in the first period P1 substantially constant at the same value as the luminous flux value of the illumination light at the start of the second period P2, and also makes the luminous flux value of the illumination light in the first period P1 substantially constant. The color temperature of the illumination light at the start of the second period P2 is made substantially constant at the same value as the color temperature of the illumination light at the start of the second period P2.

However, the luminous flux value and color temperature value of the illumination light in the first period P1 are not limited to the above, and the luminous flux value and color temperature value of the illumination light in the first period P1 are higher than at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode. It may be any value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the process.

Further, the luminous flux value and color temperature value of the illumination light in the first period P1 may include, for example, a component of variation due to measurement error. The period in which at least one of the luminous flux value and color temperature of the illumination light is constant is, for example, a period in which the luminous flux value of the illumination light in the first period P1 is equal to the average value of the luminous flux value of the illumination light in the first period P1. The color temperature of the illumination light in the first period P1 is within the range of 0.8 times or more and 1.2 times or less, and the color temperature of the illumination light in the first period P1 is 0.8 times or more of the average value of the color temperature of the illumination light in the first period P1.1. It is within the range of 2 times or less.

In this way, during the first period P1, at least one of the luminous flux value and the color temperature of the illumination light is set to be lower than at least one of the luminous flux value and the color temperature of the illumination light immediately before the start of the fluctuation illumination mode at the beginning of the second period P2. The period may be such that the period is constant at a value close to at least one of the luminous flux value and color temperature of the illumination light at the time. Also in this case, the first period P1 can prevent the luminous flux value and color temperature of the illumination light from changing suddenly for a moment. When the luminous flux value and color temperature of the illumination light in the first period P1 are set to be constant as described above, for example, the luminous flux value and color temperature of the illumination light change due to switching to the fluctuation lighting mode. Thereafter, the user's eyes can get used to the first period P1. Therefore, it is possible to more appropriately suppress flickering in the luminous flux value and color temperature of illumination light when switching to the fluctuation illumination mode.

FIG. 9 is an explanatory diagram schematically showing a modified example of the control signal.
FIG. 9 schematically shows a modification of the control signal 38 when switching the lighting mode from the super meditation mode to the fluctuation lighting mode in response to the operation of the lighting switch 34.

As shown in FIG. 9, in this example, the first period P1 is executed after the previous period P1a in which at least one of the luminous flux value and color temperature of the illumination light is gradually changed, and after the previous period P1a, The second period P1b has a smaller change in at least one of the luminous flux value and the color temperature than the previous period P1a.

The previous period P1a is, for example, the same period as the first period P1 described with reference to FIGS. 5 and 6. For example, the previous period P1a changes from a value close to at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode to a value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. This is a period in which at least one of the luminous flux value and the color temperature of the illumination light is gradually changed so that they approach close values.

The subsequent period P1b is, for example, a period in which at least one of the luminous flux value and color temperature of the illumination light is substantially constant at the value at the end of the previous period P1a. However, the latter period P1b may be a period in which at least one of the luminous flux value and color temperature of the illumination light is changed within a smaller range than the previous period P1a.

In this way, by providing the previous period P1a and the subsequent period P1b, it is possible to more appropriately suppress flickering in the luminous flux value or color temperature of the illumination light when switching to the fluctuation illumination mode, for example.

FIG. 10 is an explanatory diagram schematically showing a modified example of the control signal.
FIG. 10 schematically represents a modification of the control signal 38 when switching the lighting mode from the super meditation mode to the fluctuation lighting mode in response to the operation of the lighting switch 34.

As shown in FIG. 10, in this example, the control unit 30 starts the fluctuation illumination mode, executes the first period P1, executes the second period P2, and then repeatedly executes the second period P2. In other words, after executing the first period P1 once in response to the start of the fluctuation illumination mode, the control unit 30 repeatedly executes only the second period P2.

In this way, by executing the first period P1 only at the start of the fluctuation lighting mode and repeatedly executing the second period P2 thereafter, it is possible to allow the user to more appropriately appreciate the fluctuation pattern of illumination light. , it is possible to further enhance the relaxing effect of the user.

When repeatedly executing the second period P2, the control signal 38 changes, for example, at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2 to the luminous flux value and color temperature of the illumination light at the start of the second period P2. The same value as at least one of color temperature and color temperature. As a result, even when the second period P2 is repeatedly executed, at least one of the luminous flux value and color temperature of the illumination light suddenly changes at the timing when the second period P2 ends and the next second period P2 starts. You can prevent it from happening. In other words, flickering of the illumination light at the timing of starting the next second period P2 can be suppressed.

Note that at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2 does not necessarily have to be the same value as at least one of the luminous flux value and color temperature of the illumination light at the beginning of the second period P2. good. However, in order to suppress flickering of the illumination light at the timing of starting the next second period P2, at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2 is set at the start of the second period P2. It is preferable to set the value as close as possible to at least one of the luminous flux value and color temperature of the illumination light at that time. At least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2 is, for example, 0.5 times or more of at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. It is suitable that it is 1.5 times or less.

FIG. 11 is an explanatory diagram schematically showing a modified example of the control signal.
FIG. 11 schematically shows a modification of the control signal 38 when switching the lighting mode from the super meditation mode to the fluctuation lighting mode in response to the operation of the lighting switch 34.

As shown in FIG. 11, in this example, the control signal 38 further has a third period P3. The third period P3 is shorter than the second period P2 and is a period executed after the second period P2. The temporal length of the third period P3 is, for example, shorter than the temporal length of the first period P1. Further, the frequency components included in the third period P3 are smaller than the frequency components included in the second period P2.

The control signal 38 sets at least one of the luminous flux value and color temperature of the illumination light at the start of the third period P3 to a value close to at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2. At the same time, at least one of the luminous flux value and color temperature of the illumination light at the end of the third period P3 is set to a value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2.

The control unit 30 starts the fluctuation illumination mode, executes the first period P1, executes the second period P2, executes the third period P3, and then repeatedly executes the second period P2 and the third period P3. do. In other words, the control unit 30 starts the fluctuation illumination mode, executes the first period P1 once, and then alternately and repeatedly executes the second period P2 and the third period P3.

For example, the control signal 38 sets at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2 to the same value as at least one of the luminous flux value and color temperature of the illumination light at the beginning of the second period P2. shall be. Further, the control signal 38 sets, for example, at least one of the luminous flux value and color temperature of the illumination light in the third period P3 to a substantially constant value at the start and end of the second period P2. As a result, when the second period P2 and the third period P3 are alternately repeated, at least one of the luminous flux value and color temperature of the illumination light at the start of the third period P3 is changed to the illumination light at the end of the second period P2. At least one of the luminous flux value and color temperature of the illumination light at the end of the third period P3 is set to substantially the same value as at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. It can be set to substantially the same value as at least one of the luminous flux value and color temperature of the illumination light.

However, at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2 is not necessarily the same value as at least one of the luminous flux value and color temperature of the illumination light at the beginning of the second period P2. You can. At least one of the luminous flux value and color temperature of the illumination light at the start of the third period P3 is not necessarily substantially the same as at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2. You don't have to. At least one of the luminous flux value and color temperature of the illumination light at the end of the third period P3 is not necessarily substantially the same as at least one of the luminous flux value and color temperature of the illumination light at the beginning of the second period P2. You don't have to.

For example, if at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2 is different from at least one of the luminous flux value and color temperature of the illumination light at the start of the second period P2. In the third period P3, for example, the luminous flux value and color temperature of the illumination light at the start of the second period P2 are calculated from at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2. At least one of the luminous flux value and color temperature of the illumination light may be gradually changed so as to approach at least one of the values.

In this way, the control signal 38 further has a third period P3, and executes the first period P1 only at the start of the fluctuation illumination mode, and thereafter repeatedly executes the second period P2 and the third period P3. By doing so, the user can more appropriately appreciate the illumination light of the fluctuation pattern, and the relaxing effect can be further enhanced. Further, by providing the third period P3, for example, when repeating the second period P2, it is possible to easily suppress flickering in the illumination light at the timing of the start of the next second period P2. . For example, at least one of the luminous flux value and color temperature of the illumination light at the end of the second period P2 is different from at least one of the luminous flux value and color temperature of the illumination light at the start of the next second period P2. Even in such cases, by providing the third period P3 in between, it is possible to easily suppress flickering in the illumination light at the start timing of the next second period P2. Thereby, for example, the degree of freedom in designing the fluctuation pattern in the second period P2 can be increased.

In each of the above embodiments, an example is shown in which the lighting device 10 is applied to the bathroom unit 2. The lighting device 10 is not limited to the bathroom unit 2, and may be applied to any other device. Further, the lighting device 10 is not limited to one that is used by being incorporated into another device, but may be one that is used alone for illuminating a room or the like. The lighting device 10 may have any configuration including at least one lighting section, a storage section, and a control section.

The embodiments of the present invention have been described above. However, the invention is not limited to these descriptions. Appropriate design changes made by those skilled in the art with respect to the above-described embodiments are also included within the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape, size, material, arrangement, etc. of each element included in the bathroom unit 2, the lighting device 10, etc. are not limited to those illustrated, and can be changed as appropriate.
Furthermore, the elements of each of the embodiments described above can be combined to the extent technically possible, and combinations of these are also included within the scope of the present invention as long as they include the features of the present invention.

2 bathroom unit, 10 lighting device, 11 first counter, 12 second counter, 21 first lighting section, 22 second lighting section, 23 third lighting section (lighting section), 24 fourth lighting section, 30 control section, 32 switch, 34 lighting switch, 36 storage section, 38 control signal, 40 bathtub, 42 washing area floor, 44 wall section, 46 ceiling section, 48 mirror, 60 counter main body, 61 water spout section, 80 shelf section, 81 support section, P1 1st period, P1a pre-period, P1b post-period, P2 2nd period, P3 3rd period

Claims (9)

a lighting section that emits illumination light;
a storage unit storing a control signal for executing a fluctuation illumination mode of a fluctuation pattern in which at least one of a luminous flux value and a color temperature of the illumination light emitted from the illumination unit is adjusted;
a control unit that executes the fluctuation illumination mode by reading the control signal from the storage unit and controlling irradiation of the illumination light from the illumination unit based on the control signal;
Equipped with
The control signal is a signal expressing at least one of a luminous flux value and a color temperature of the illumination light for a predetermined period of time, and has a first period and a second period,
The second period is a period that includes a plurality of frequency components and expresses the fluctuation pattern,
The first period is a period that is shorter than the second period and is executed before the second period,
The frequency components included in the first period are less than the frequency components included in the second period,
The control unit executes the first period when starting the fluctuation illumination mode, and executes the second period after the first period,
The control signal is such that at least one of the luminous flux value and color temperature of the illumination light at the end of the first period is higher than at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode, setting at least one of the luminous flux value and color temperature of the illumination light in the first period so as to be close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period ;
In the first period, at least one of the luminous flux value and color temperature of the illumination light is set to be lower than at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode, at the start of the second period. An illumination device characterized in that the period is constant at a value close to at least one of a luminous flux value and a color temperature of the illumination light . a lighting section that emits illumination light;
a storage unit storing a control signal for executing a fluctuation illumination mode of a fluctuation pattern in which at least one of a luminous flux value and a color temperature of the illumination light emitted from the illumination unit is adjusted;
a control unit that executes the fluctuation illumination mode by reading the control signal from the storage unit and controlling irradiation of the illumination light from the illumination unit based on the control signal;
Equipped with
The control signal is a signal expressing at least one of a luminous flux value and a color temperature of the illumination light for a predetermined period of time, and has a first period and a second period,
The second period is a period that includes a plurality of frequency components and expresses the fluctuation pattern,
The first period is a period that is shorter than the second period and is executed before the second period,
The frequency components included in the first period are less than the frequency components included in the second period,
The control unit executes the first period when starting the fluctuation illumination mode, and executes the second period after the first period,
The control signal is such that at least one of the luminous flux value and color temperature of the illumination light at the end of the first period is higher than at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode, setting at least one of the luminous flux value and color temperature of the illumination light in the first period so as to be close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period;
The first period ranges from a value close to at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode to a value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period. A period in which at least one of the luminous flux value and color temperature of the illumination light is gradually changed so as to approach a value close to one of the two,
The first period is
a pre-period in which at least one of the luminous flux value and color temperature of the illumination light is gradually changed;
a subsequent period that is executed after the previous period, and in which a change in at least one of a luminous flux value and a color temperature of the illumination light is smaller than in the previous period;
A lighting device comprising: a lighting section that emits illumination light;
a storage unit storing a control signal for executing a fluctuation illumination mode of a fluctuation pattern in which at least one of a luminous flux value and a color temperature of the illumination light emitted from the illumination unit is adjusted;
a control unit that executes the fluctuation illumination mode by reading the control signal from the storage unit and controlling irradiation of the illumination light from the illumination unit based on the control signal;
Equipped with
The control signal is a signal expressing at least one of a luminous flux value and a color temperature of the illumination light for a predetermined period of time, and has a first period and a second period,
The second period is a period that includes a plurality of frequency components and expresses the fluctuation pattern,
The first period is a period that is shorter than the second period and is executed before the second period,
The frequency components included in the first period are less than the frequency components included in the second period,
The control unit executes the first period when starting the fluctuation illumination mode, and executes the second period after the first period,
The control signal is such that at least one of the luminous flux value and color temperature of the illumination light at the end of the first period is higher than at least one of the luminous flux value and color temperature of the illumination light immediately before the start of the fluctuation illumination mode, setting at least one of the luminous flux value and color temperature of the illumination light in the first period so as to be close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period;
The control signal further has a third period,
The third period is a period that is shorter than the second period and is executed after the second period,
The frequency components included in the third period are less than the frequency components included in the second period,
The control signal sets at least one of the luminous flux value and color temperature of the illumination light at the start of the third period to a value close to at least one of the luminous flux value and color temperature of the illumination light at the end of the second period. and set at least one of the luminous flux value and color temperature of the illumination light at the end of the third period to a value close to at least one of the luminous flux value and color temperature of the illumination light at the start of the second period. and set it to
The control unit starts the fluctuation illumination mode, executes the first period, executes the second period, executes the third period, and then repeats the second period and the third period. A lighting device characterized in that: The lighting device according to claim 1 , wherein the fluctuation pattern in the second period is a 1/f fluctuation pattern based on characteristics of 1/f fluctuation. The lighting device according to any one of claims 1 to 4, wherein the length of the first period is 0.01 seconds or more and 3 seconds or less. 6. The control unit starts the fluctuation illumination mode, executes the first period, executes the second period, and then repeatedly executes the second period. The lighting device according to item 1. The control signal may change at least one of the luminous flux value and color temperature of the illumination light at the end of the first period to at least one of the luminous flux value and color temperature of the illumination light at the beginning of the second period. The lighting device according to any one of claims 1 to 6, characterized in that the values are the same. The illumination according to any one of claims 1 to 7 , wherein the control signal sets the color temperature of the illumination light emitted from the illumination unit in the fluctuation illumination mode to 1800K or more and 2300K or less. Device. The control signal sets a range of variation in the luminous flux value of the illumination light irradiated from the illumination unit in the second period to a range of 0.5 times or more and 1.5 times or less with respect to a reference value. The lighting device according to any one of claims 1 to 8, characterized in that:

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