JP2007294143A - Lighting system and bed provided with lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system to light a sleeping space suitably in a bed room. <P>SOLUTION: The lighting system is provided on a bed and is composed of a lighting unit having an incandescent-lamp color LED and a white color LED, a sleeping controlling part which can change a light switch-off time and luminance of the lighting unit at an early sleeping stage, and a wake-up controlling part which can change a light switch-off time and the luminance of the lighting unit at a time of waking up a sleeper. The sleeping controlling part can set suitably according to the sleeper's physical condition or the like a maximum luminance of the incandescent light LED at an early sleeping stage at 50 lux or more and under 500 lux and can suitably set the light switch-off time (T2) within 30 minutes of an estimated falling-sleep time (T1). The wake-up controlling part can suitably set a lighting start time (T3) of the white color LED before one hour of an estimated wake-up time (T5) according to the sleeper's physical condition or the like and the maximum luminance of the white color LED is 500 lux or more and 2000 lux or less. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

    The present invention relates to an illumination device that illuminates a sleeping space where a sleeping person goes to bed, and a bed provided with the illumination device.

    2. Description of the Related Art Conventionally, an illumination device that illuminates a sleeping space when a sleeping person enters or wakes up is known (for example, Patent Document 1).

Patent Document 1 describes an alarm device that includes a lighting device and a wake-up device and awakens a sleeping person. The lighting apparatus starts to be lit before the awakening apparatus is activated, and is lit so that the illuminance is small, and then changes to light when the illuminance is large. As a result, the sleeper is gradually guided to the awake state and the awakening device operates without suddenly receiving strong light, so that the comfort of the sleeper is improved.
Special Publication 4-68595

    However, the above-described conventional lighting device illuminates the sleeping space under fixed lighting conditions that are originally set, and the lighting is appropriate according to the individual differences of the sleeping person, the physical condition, preference, environment, etc. of the day. There was a problem that lighting could not be performed under certain conditions.

    This invention is made | formed in view of this point, and it aims at performing the illumination suitable for a sleeper in the illuminating device which illuminates a sleeping space at the time of a sleeper's entering.

    1st invention is an illuminating device provided with the illumination means (31) which illuminates the sleeping space (14) in order to wake a sleeping person, Comprising: The illumination start time of the said illumination means (31), illumination intensity, and a wavelength Awakening variable means (55) for variably setting at least one of them is provided.

    In other words, like a conventional lighting device, in order to wake up the sleeper, the sleeper can gradually become a light stimulus by turning on with the illuminance increased after being turned on with the illuminance reduced. It may be preferable. On the other hand, if the sleeper is busy and tired, the sleeper may be deeply asleep, and suddenly the light is suddenly increased when the light is suddenly increased. Sleeper waking may be comfortable. Thus, the lighting start time, illuminance, wavelength, and the like for the sleeper to wake up comfortably depend on the sleeper's situation. Therefore, according to the first aspect of the present invention, the awakening variable means (55) sets at least one of the illumination start time, illuminance, and wavelength of the illumination means (31) when the sleeper is awakened to the sleeper. Set appropriately according to individual differences, preferences, physical condition and environment. The illuminance here refers to the illuminance at a position corresponding to the bedside of the sleeping person, that is, the vicinity of the sleeping person's eyes.

    2nd invention is an illuminating device provided with the illumination means (31) which illuminates the sleeping space (14) at the early bedtime of a sleeper, Comprising: At least any one of the illumination end time of the said illumination means (31), and illumination intensity There is provided a sleeping variable means (53) for setting one variable.

    In the second aspect of the present invention, the early bedtime refers to the time when the sleeping person starts to enter the bed and reaches the sleeping state. In other words, the sleeping person may read after entering the bed, and the lighting means (31) performs lighting according to the behavior of the sleeping person after entering the bed and does not disturb the sleeping person, After the lighting, the lighting is automatically terminated so as not to disturb the sleep of the sleeping person. The lighting end time and illuminance for guiding the sleeping person to a deep sleeping state vary depending on the sleeping person's situation. Therefore, in the second invention, the sleeping variable means (53) determines at least one of the lighting start time and the illuminance of the lighting means (31) in the early bedtime based on the individual difference, preference, Set according to your physical condition and environment. The illuminance here refers to the illuminance at a position corresponding to the bedside of the sleeping person, that is, the vicinity of the sleeping person's eyes.

    3rd invention is an illuminating device provided with the illumination means (31) which illuminates the sleeping space (14) where a sleeper sleeps, Comprising: At least the illumination end time and the illumination intensity in the early bedtime of the said illumination means (31) The sleeping variable means (53) that variably sets any one of the lighting means, and at least one of the illumination start time, illuminance, and wavelength for awakening the sleeping person of the lighting means (31) is variably set. And awakening variable means (55).

    In the third aspect of the present invention, the early bedtime refers to the time when the bedridden starts to enter the sleep state. In other words, the sleeping person may read a book after entering the bed, and the lighting means (31) illuminates the sleeping space (14) according to the behavior of the sleeping person. In the third invention, the sleeping variable means (53) determines at least one of the lighting start time and the illuminance of the lighting means (31) in the early stages of sleep from the individual difference, preference, physical condition and While appropriately setting depending on the environment or the like, at least one of the illumination start time, illuminance, and wavelength of the illumination means (31) when the awakening variable means (55) awakens the sleeper, Set appropriately according to individual differences, preferences, physical condition, environment, etc. The illuminance here refers to the illuminance at a position corresponding to the bedside of the sleeping person, that is, the vicinity of the sleeping person's eyes.

    In a fourth aspect based on the first or third aspect, the awakening variable means (55) includes an awakening time setting means (55b) for setting an illumination start time of the illumination means (31). Awakening illuminance setting means (55c) for setting the illuminance.

    In the fourth aspect of the invention, the wake-up time setting means (55b) appropriately sets the lighting start time of the lighting means (31) according to the individual difference, preference, physical condition, environment, etc. of the sleeper. The awakening illuminance setting means (55c) appropriately sets the illuminance of the illuminating means (31) according to the individual differences, preferences, physical condition, environment, etc. of the sleeper. That is, the awakening time setting means (55b) sets the lighting start time earlier or the sleeper immediately before the scheduled wake-up time, for example, when the sleeper is in a deep sleep state immediately before the scheduled wake-up time. When the sleep state is shallow, the lighting start time is set late. The illuminance setting means (55c) for awakening is set so that, for example, when the sleeper is in a deep sleep state just before the scheduled wake-up time, the illuminance is set large or the illuminance is changed rapidly. When the sleeper is in a light sleep state just before the scheduled wake-up time, the illuminance is set to be small or the illuminance is set to gradually change gradually.

    In a fifth aspect based on the first or third aspect, the wakefulness varying means (55) is configured such that the wakefulness time setting means (55b) for setting the lighting start time of the illuminating means (31) and the wavelength. Waking wavelength setting means (55d) is provided.

    In the fifth aspect of the invention, the wake-up time setting means (55b) appropriately sets the lighting start time of the lighting means (31) according to the individual difference, preference, physical condition, environment, etc. of the sleeper. The waking wavelength setting means (55d) appropriately sets the wavelength of the illumination means (31) according to individual differences, preferences, physical condition, environment, etc. of the sleeper. That is, the awakening time setting means (55b) sets the lighting start time earlier or the sleeper immediately before the scheduled wake-up time, for example, when the sleeper is in a deep sleep state immediately before the scheduled wake-up time. When the sleep state is shallow, the lighting start time is set late. Moreover, it is known that a hormone called melatonin secreted in the brain is deeply involved in sleep, and it is known that sleepiness is induced when the amount of melatonin secretion increases. On the other hand, it is known that the secretion of melatonin is suppressed when exposed to light having a wavelength in a predetermined range based on 464 nm. Therefore, the wavelength setting means (55d) for awakening increases or decreases the amount of light having a strong wavelength of awakening stimulation in a predetermined range with reference to 464 nm, or the amount of light with a wavelength in a predetermined range with reference to 464 nm. Is set as appropriate so as to change.

    In a sixth aspect based on the first or third aspect, the waking variable means (55) sets the wavelength with the waking illuminance setting means (55c) for setting the illuminance of the illuminating means (31). And awaken wavelength setting means (55d).

    In the sixth aspect of the invention, the illuminance setting means (55c) for awakening appropriately sets the illuminance of the illumination means (31) according to individual differences, preferences, physical condition, environment, etc. of the sleeper, while the awakening The wavelength setting means (55d) for use appropriately sets the wavelength of the illuminating means (31) according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. In other words, the illuminance setting means (55c) for awakening is set so that, for example, when the sleeper is in a deep sleep state just before the scheduled wake-up time, the illuminance is set large or the illuminance is changed rapidly. When the sleeper is in a light sleep state just before the scheduled wake-up time, the illuminance is set to be small or the illuminance is set to gradually change gradually. Moreover, it is known that a hormone called melatonin secreted in the brain is deeply involved in sleep, and it is known that sleepiness is induced when the amount of melatonin secretion increases. On the other hand, it is known that the secretion of melatonin is suppressed when exposed to light having a wavelength in a predetermined range based on 464 nm. Therefore, the wavelength setting means (55d) for awakening increases or decreases the amount of light having a strong wavelength of awakening stimulation in a predetermined range with reference to 464 nm, or the amount of light with a wavelength in a predetermined range with reference to 464 nm. Is set as appropriate so as to change.

    In a seventh aspect based on the first or third aspect, the wakefulness changing means (55) and the wakefulness time setting means (55b) for setting the lighting start time of the illuminating means (31) and the illuminance And awakening illuminance setting means (55c) for setting the wavelength and awakening wavelength setting means (55d) for setting the wavelength.

    In the seventh invention, the wake-up time setting means (55b) appropriately sets the lighting start time of the lighting means (31) according to individual differences, preferences, physical condition, environment, etc. of the sleeper. The awakening illuminance setting means (55c) appropriately sets the illuminance of the illuminating means (31) according to the individual differences, preferences, physical condition, environment, etc. of the sleeper. Further, the wavelength setting means (55d) for awakening appropriately sets the wavelength of the illumination means (31) according to the individual difference, preference, physical condition, environment, etc. of the sleeper. That is, the awakening time setting means (55b) sets the lighting start time earlier or the sleeper immediately before the scheduled wake-up time, for example, when the sleeper is in a deep sleep state immediately before the scheduled wake-up time. When the sleep state is shallow, the lighting start time is set late. The illuminance setting means (55c) for awakening is set so that, for example, when the sleeper is in a deep sleep state just before the scheduled wake-up time, the illuminance is set large or the illuminance is changed rapidly. When the sleeper is in a light sleep state just before the scheduled wake-up time, the illuminance is set to be small or the illuminance is set to gradually change gradually. Moreover, it is known that a hormone called melatonin secreted in the brain is deeply involved in sleep, and it is known that sleepiness is induced when the amount of melatonin secretion increases. On the other hand, it is known that the secretion of melatonin is suppressed when exposed to light having a wavelength in a predetermined range based on 464 nm. Therefore, the wavelength setting means (55d) for awakening increases or decreases the amount of light having a strong wavelength of awakening stimulation in a predetermined range with reference to 464 nm, or the amount of light with a wavelength in a predetermined range with reference to 464 nm. Is set as appropriate so as to change.

    In an eighth aspect based on the second or third aspect, the sleeping variable means (53) sets the illuminance with the sleeping time setting means (53b) for setting the illumination end time of the illumination means (31). Illumination setting means (53c) for sleeping is provided.

    In the eighth aspect of the invention, the bedtime setting means (53b) appropriately sets the lighting end time of the lighting means (31) according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. The sleeping illuminance setting means (53c) appropriately sets the illuminance of the lighting means (31) according to the individual differences, preferences, physical condition, environment, etc. of the sleeping person. That is, a sleeping person may read a book after entering the bed, and the illuminance setting means (53c) for sleeping is used by the lighting means (31) according to the sleeping person's behavior after entering the bed. Illumination is performed with illuminance so as not to disturb sleep. The sleeping time setting means (53b) appropriately sets the lighting end time according to the length of time until the sleeping person enters the bed after going to bed and the depth of the sleeping state during sleep. .

    In a ninth aspect based on the first or third aspect, the awakening variable means (55) includes awakening time setting means (55b) for setting a lighting start time of the lighting means (31). I have.

    In the ninth aspect of the invention, the wake-up time setting means (55b) appropriately sets the lighting start time of the lighting means (31) according to individual differences, preferences, physical condition, environment, etc. of the sleeper. That is, the awakening time setting means (55b) sets the lighting start time earlier or the sleeper immediately before the scheduled wake-up time, for example, when the sleeper is in a deep sleep state immediately before the scheduled wake-up time. When the sleep state is shallow, the lighting start time is set late.

    In a tenth aspect based on any one of the fourth, fifth, seventh and ninth aspects, the wake-up time setting means (55b) sets the lighting start time of the illuminating means (31) to one of the scheduled wake-up times. It is configured to set after the hour.

    In the tenth aspect of the invention, the wake-up time setting means (55b) sets the lighting start time of the lighting means (31) one hour before the scheduled wake-up time. The awakening time setting means (55b) does not start lighting from an unnecessarily early time (for example, 2 hours before the scheduled wake-up time) than the planned wake-up time. You do not wake up earlier than the time.

    In an eleventh aspect based on the first or third aspect, the waking variable means (55) includes waking illuminance setting means (55c) for setting the illuminance of the illuminating means (31). Yes.

    In the eleventh aspect, the illuminance setting means (55c) for awakening appropriately sets the illuminance of the illumination means (31) according to individual differences, preferences, physical condition, environment, etc. of the sleeper. In other words, the illuminance setting means (55c) for awakening is set so that, for example, when the sleeper is in a deep sleep state just before the scheduled wake-up time, the illuminance is set large or the illuminance is changed rapidly. When the sleeper is in a light sleep state just before the scheduled wake-up time, the illuminance is set to be small or the illuminance is set to gradually change gradually.

    In a twelfth invention according to any one of the fourth, sixth, seventh and eleventh inventions, the illuminance setting means (55c) for waking up has a maximum illuminance of the illumination means (31) of 500 lux or more and 2000 lux or less. It is configured to set within the range.

    In the twelfth aspect of the invention, the illuminance setting means (55c) for awakening sets the maximum illuminance of the illumination means (31) within a range of 500 lux or more and 2000 lux or less that reliably guides the sleeper to the awake state. To do.

    In a thirteenth aspect based on any one of the fourth, sixth, seventh and eleventh aspects, the awakening illuminance setting means (55c) sets the arrival time of the maximum illuminance at which the illuminating means (31) has the maximum illuminance. It is configured to set between the illumination start time and the scheduled wake-up time.

    In the thirteenth invention, the awakening illuminance setting means (55c) sets the arrival time of the maximum illuminance at which the illuminating means (31) has the maximum illuminance between the illumination start time and the scheduled wake-up time. Set appropriately according to individual differences, preferences, physical condition and environment. That is, when the sleep state of the sleeper is very deep, the time from the illumination start time to the arrival time of the maximum illuminance is shortened, the illuminance of the illumination means (31) is rapidly increased, and the time of the maximum illuminance is increased. In this way, the light stimulus given to the sleeping person is strengthened. On the other hand, when the sleep state of the sleeper is shallow, the time from the illumination start time to the arrival time of the maximum illuminance is lengthened, the illuminance of the illumination means (31) is gradually increased gradually, and the time of the maximum illuminance is shortened. In this way, the light stimulus given to the sleeper is weakened.

    In a fourteenth aspect based on the first or third aspect, the waking variable means (55) includes waking wavelength setting means (55d) for setting the wavelength of the illumination means (31). Yes.

    In the fourteenth invention, the wavelength setting means (55d) for awakening appropriately sets the wavelength of the illumination means (31) according to individual differences, preferences, physical condition, environment, etc. of the sleeper. Here, it is known that a hormone called melatonin secreted in the brain is deeply involved in sleep, and when this melatonin secretion increases, sleepiness is induced. On the other hand, it is known that the secretion of melatonin is suppressed when exposed to light having a wavelength in a predetermined range based on 464 nm. Therefore, the wavelength setting means (55d) for awakening increases or decreases the amount of light having a strong wavelength of awakening stimulation in a predetermined range with reference to 464 nm, or the amount of light with a wavelength in a predetermined range with reference to 464 nm. Is set as appropriate so as to change.

    In a fifteenth aspect based on any one of the fifth, sixth, seventh and fourteenth aspects, the illuminating means (31) includes a plurality of light source means (41, 42) having different wavelength characteristics, and the waking wavelength. The setting means (55d) is configured to set the wavelength distribution of the illumination means (31) by setting the illuminance of each of the light source means (41, 42).

    In the fifteenth aspect of the invention, the light source means (41, 42) have different wavelength characteristics, and therefore have different ratios in which a wavelength with a strong arousal stimulus is included. Therefore, the wavelength setting means for wakefulness (55d) increases the illuminance of the light source means (41) that generates light having a wavelength characteristic that does not include a strong wavelength of the wakefulness stimulus, for example. The light source means (42) that generates light having a wavelength characteristic that includes many wavelengths with a strong arousal stimulus is increased to increase the illuminance of the sleeper, thereby surely awakening the sleeper.

    In a sixteenth aspect based on any one of the fifth, sixth, seventh and fourteenth aspects, the illumination means (31) covers the light source means (41, 42) for generating light and the light source means (41). An optical filter (60) for blocking or reducing light of a wavelength in a specific region, and a movable means (61) for moving the optical filter (60), wherein the wavelength setting means (55d) for waking up The movable means (61) is controlled to change the range in which the optical filter (60) covers the light source means (41, 42).

    In the sixteenth aspect of the invention, the wavelength setting means (55d) for awakening increases or decreases the range in which the optical filter (60) covers the light source means (41, 42) by the movable means (61). To do. That is, the wavelength setting means (55d) for wakefulness increases the range that covers the light source means (41, 42) by the optical filter (60), for example, and reduces the wavelength of strong wakefulness stimulation or reduces the sleeper. By providing a strong wavelength of arousal stimulus to the sleeper by reducing the area that covers the light source means (41, 42) by the optical filter (60) and preventing the arousal stimulus from being applied suddenly to the sleeper, Make sure you wake up.

    According to a seventeenth aspect of the present invention, in any one of the fifth, sixth, seventh, and fourteenth aspects, the wavelength setting means (55d) for awakening has a wavelength with a strong arousal stimulus from the start of illumination of the illumination means (31). The light is gradually increased.

    In the seventeenth aspect, the wavelength setting means for wakefulness (55d) prevents the sleeper from receiving a sudden wakefulness stimulus by gradually increasing the light having a strong wavelength of the wakefulness stimulus.

    In an eighteenth aspect based on the seventeenth aspect, the light having a strong wavelength for arousal stimulation is light having a wavelength in a predetermined range with 464 nm as a reference.

    In the eighteenth aspect of the invention, the wavelength in a predetermined range with 464 nm as a reference means a wavelength of 380 nm to 525 nm. That is, the action of suppressing the secretion of melatonin that induces sleepiness has been recognized for light having a wavelength of 380 nm to 525 nm. In order to suppress the melatonin secretion in the sleeping person's brain, it is desirable to irradiate the sleeping person with light having a wavelength of 440 nm or more and 490 nm or less, and further to the sleeping person with light having a wavelength of 460 nm or more and 470 nm or less. Is more desirable. Therefore, in the thirteenth aspect, the wavelength setting means (55d) for awakening gradually increases light having a wavelength in a predetermined range with reference to 464 nm.

    In a nineteenth aspect based on the second or third aspect, the sleeping variable means (53) includes a sleeping time setting means (53b) for setting an illumination end time of the illumination means (31). Yes.

    In the nineteenth aspect of the invention, the bedtime setting means (53b) appropriately sets the lighting end time of the lighting means (31) according to individual differences, preferences, physical condition, environment, etc. of the sleeping person. That is, the bedtime setting means (53b) appropriately sets the illumination end time according to the length of time until the sleeper enters the sleep state after going to bed and the depth of the sleep state during sleep. .

    In a twentieth aspect according to the eighth or nineteenth aspect, the illuminating means (31) is configured such that the illuminance gradually decreases from a scheduled sleep time, and the sleeping time setting means (53b) The illumination end time of the illumination means (31) is set within 30 minutes after the scheduled sleep time.

    In the twentieth aspect, the sleeping time setting means (53b) sets the lighting end time of the lighting means (31) according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. Set as appropriate within 30 minutes after the time. That is, for example, when the sleeping person is in a deep sleep state at the scheduled sleep time, the sleep time setting means (53b) shortens the time from the scheduled sleep time to the illumination end time, thereby reducing the lighting unit ( 31) Decrease the illuminance abruptly to shorten the time for light stimulation to the sleeper, but if the sleep state of the sleeper is shallow, increase the time from the scheduled sleep time to the lighting end time to The fluctuation of the light stimulus received by the sleeper is reduced by gradually decreasing the illuminance of the unit (31).

    In a twenty-first aspect based on the second or third aspect, the sleeping variable means (53) includes a sleeping illuminance setting means (53c) for setting the illuminance of the illumination means (31). Yes.

    In the twenty-first invention, the illuminance setting means (53c) for sleeping appropriately sets the illuminance of the illumination means (31) according to individual differences, preferences, physical condition, environment, etc. of the sleeper. In other words, since the sleeping person may read a book after entering the bed, the illuminance setting means for sleeping (53c) sets the illuminance according to the behavior of the sleeping person immediately after entering the bed, After the sleeper finishes reading, set an appropriate illuminance that will guide him to sleep.

    In a twenty-second aspect based on the eighth or twenty-first aspect, the illuminance setting means (53c) for sleeping sets the maximum illuminance of the illumination means (31) within a range of 50 lux or more and less than 500 lux. It is configured as follows.

    In the twenty-second aspect of the present invention, the illuminance setting means (53c) for sleeping is suitable for reading a book immediately after entering the bed and setting the maximum illuminance of the illuminating means (31) and does not impede sleep on the sleeper. Set within the range of more than lux and less than 500 lux.

    According to a twenty-third aspect, in the second or third aspect, the illuminating means (31) includes a light source means (41) for sleeping that generates light having a wavelength characteristic with a weak arousal stimulus in the early bedtime. .

    In the twenty-third aspect, since the amount of melatonin secretion that induces drowsiness is suppressed by exposure to light having a wavelength in a predetermined range based on 464 nm, the light source means (41) is based on 464 nm. Light with a weak arousal stimulus that does not contain much wavelength in a predetermined range is generated.

    In a twenty-fourth aspect based on the second or third aspect, the illuminating means (31) includes a light source means (41) for generating light and the light source means (41) covering the light source means (41) at the beginning of bedtime. An optical filter (60) that blocks or reduces light having a strong wavelength and transmits light having a weak wavelength of arousal stimulation.

    In the twenty-fourth aspect of the invention, the illumination means (31) covers the light source means (41) with the optical filter (60), thereby preventing the sleeper from being supplied with light having a strong wavelength of arousal stimulation. The sleep of the sleeper should not be disturbed or induced from a deep sleep state to a shallow sleep state. In addition, the optical filter (60) may not completely block light with strong arousal stimulation, that is, only needs to reduce light with strong arousal stimulation. Furthermore, it is sufficient that at least light with a weak arousal stimulus can be transmitted more easily than a light with a strong arousal stimulus.

    In a twenty-fifth aspect based on the twenty-third or twenty-fourth aspect, the light having a weak wavelength of the arousal stimulus is light in a wavelength region excluding a predetermined range of wavelengths with 464 nm as a reference.

    In the twenty-fifth aspect of the present invention, the wavelength in a predetermined range based on 464 nm refers to a wavelength of 380 nm or more and 525 nm or less. That is, the action of suppressing the secretion of melatonin has been observed for light having a wavelength of 380 nm to 525 nm, and this action is large for light having a wavelength of 440 nm to 490 nm, and further to light having a wavelength of 460 nm to 470 nm. Even bigger. Therefore, in the twentieth invention, the light supplied from the lighting means (31) to the sleeping person is light in a wavelength region excluding the wavelength of 460 nm or more and 470 nm or less, and the wavelength is 440 nm or more and 490 nm. Light in a wavelength region excluding the following wavelengths is preferable, and light excluding light having a wavelength of 380 nm to 525 nm is more preferable.

    According to a twenty-sixth aspect of the invention, in any one of the first, second, and third aspects, the illumination means (31) controls the sleeping space (14) during sleep of the sleeping person to illuminate with a predetermined low illuminance. Control means (54) for sleeping, and illuminance setting means (54c) for sleep that variably sets a predetermined low illuminance of the illumination means (31).

    In the twenty-sixth aspect of the invention, the illuminance setting means (54c) for sleep appropriately sets the illuminance of the illumination means (31) during the sleep according to individual differences, preferences, physical condition and environment of the sleeper. .

    In a twenty-seventh aspect based on the twenty-sixth aspect, the sleep illuminance setting means (54c) sets the predetermined low illuminance of the illuminating means (31) between 0.3 lux and 5 lux. It is configured.

    In the twenty-seventh aspect, the illuminance setting means (54c) for sleep sets the illuminance of the illuminating means (31) at 0.3 lux or more and 5 lux or less that does not induce a sleeper into a shallow sleep state.

    In a twenty-eighth aspect based on the twenty-sixth aspect, the illuminating means (31) includes a light source means (41) for sleeping while generating light having a wavelength characteristic with a weak arousal stimulus during the sleeping.

    In the twenty-eighth aspect of the invention, since the amount of melatonin secretion that induces sleepiness is suppressed by exposure to light having a wavelength in a predetermined range based on 464 nm, the light source means (41) is based on 464 nm. Light with a weak arousal stimulus that does not contain much wavelength in a predetermined range is generated.

    In a twenty-ninth aspect based on the twenty-sixth aspect, the illuminating means (31) includes a light source means (41) for generating light, and a light source having a wavelength of strong arousal stimulation covering the light source means (41) during the sleep. And an optical filter (60) that blocks or reduces light and transmits light having a weak wavelength of arousal stimulation.

    In the twenty-ninth aspect of the invention, the illumination means (31) covers the light source means (41) with an optical filter (60), thereby supplying the sleeper with light having a wavelength that is weak for arousal stimulation. To avoid being induced by light sleep. In addition, the optical filter (60) may not completely block light with strong arousal stimulation, that is, only needs to reduce light with strong arousal stimulation. Furthermore, it is sufficient that at least light with a weak arousal stimulus can be transmitted more easily than a light with a strong arousal stimulus.

    In a thirtieth aspect based on the twenty-eighth or twenty-ninth aspect, the light having a weak wavelength of the arousal stimulus is light in a wavelength region excluding a predetermined range of wavelengths with 464 nm as a reference.

    In the thirtieth aspect, the wavelength within a predetermined range based on 464 nm refers to a wavelength of 380 nm or more and 525 nm or less. That is, the action of suppressing the secretion of melatonin has been observed for light having a wavelength of 380 nm to 525 nm, and this action is large for light having a wavelength of 440 nm to 490 nm, and further to light having a wavelength of 460 nm to 470 nm. Even bigger. Therefore, in the twenty-fifth aspect of the invention, the light supplied to the sleeping person from the illumination means (31) is light in a wavelength region excluding the wavelength of 460 nm or more and 470 nm or less, and the wavelength is 440 nm or more and 490 nm. Light in a wavelength region excluding the following wavelengths is preferable, and light excluding light having a wavelength of 380 nm to 525 nm is more preferable.

    A thirty-first invention includes any one of the first, second, and third lighting devices (30) and a bed body (10) for a person to sleep, and at least the lighting means (31) is the bed body. (10) is provided.

    In the thirty-first aspect of the present invention, the bed body (10) is provided with the illumination means (31), and the above-mentioned lighting means (31) is used according to individual differences, preferences, physical condition, environment, etc. The illumination conditions of the illumination means (31) are set as appropriate.

    According to the first invention, at least one of the lighting start time, illuminance, and wavelength of the lighting means (31) for awakening the sleeping person is determined by the individual difference, preference, physical condition, environment, etc. of the sleeping person. Therefore, it is possible to improve comfort when the sleeping person awakens.

    According to the second aspect of the invention, at least one of the illumination start time and the illuminance of the illumination means (31) in the early bedtime is appropriately determined according to the individual difference, preference, physical condition, environment, etc. of the sleeper. Since it can be set, the sleeper can be guided to a deep sleep state after falling asleep. As a result, the sleeper does not become insufficiency of sleep, and as a result, the comfort when the sleeper awakens can be improved, and further, the health condition of the sleeper can be improved. Can do.

    According to the third aspect of the invention, at least one of the illumination start time and the illuminance of the illumination means (31) in the early bedtime is appropriately determined according to the individual difference, preference, physical condition, environment, etc. of the sleeper. Since it can be set, the sleeper can be guided to a deep sleep state after falling asleep. Thereby, since a sleeper does not become a state of lack of sleep, as a result, the comfort at the time of a sleeper's awakening can be improved. Furthermore, at least one of the illumination start time, illuminance, and wavelength of the illumination means (31) for awakening the sleeping person is appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. Therefore, it is possible to improve comfort when the sleeper awakens more reliably.

    According to the fourth aspect of the invention, the lighting start time and the illuminance of the lighting means (31) when the sleeping person is awakened are appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. can do. Thereby, for example, when a sleeper is in a deep sleep state slightly before the scheduled wake-up time, the illumination start time is advanced, or the illumination means (31) is used to increase the stimulation of light due to illuminance and illuminance fluctuations. It can be surely induced to an awake state. In addition, if the sleeper is in a light sleep state just before the scheduled wake-up time, the lighting start time may be delayed, or the light stimulus by the illumination means (31) or illuminance fluctuation may be weakened. It is possible to reliably induce the awake state without giving a special stimulus. Furthermore, for example, when the illuminance is gradually increased to the maximum illuminance from the start of lighting to a predetermined time before the scheduled wake-up time, the illuminance setting means for awakening (55c) can change the maximum illuminance according to the physical condition of the sleeping person, etc. Even if set to, if the time setting means (55b) for sleeping sets the lighting start time earlier or later according to this maximum illuminance, the variation rate of illuminance can be made constant or the variation rate can be reduced. Can be changed. That is, since the awakening stimulus received by the sleeper varies depending on the variation rate of the illuminance, the variation rate of the illuminance can be appropriately set according to the physical condition of the sleeper.

    Further, according to the fifth invention, the lighting start time and wavelength of the lighting means (31) when waking up the sleeping person are appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. can do. Thereby, for example, when the sleeping person is in a deep sleep state just before the scheduled wake-up time, the lighting start time of the sleeping means is advanced, or the sleeping person suddenly increases the wavelength of strong arousal stimulus from the lighting means (31). By being supplied to the sleeper, the sleeping person can be surely guided to the awake state. In addition, when the sleeper is in a shallow sleep state just before the scheduled wake-up time, the lighting start time is delayed, or the sleeper is gradually supplied with light having a weak arousal stimulus from the lighting means (31). By supplying a strong wavelength of the arousal stimulus, it is possible to reliably induce the awake state without giving the sleeper an excessive stimulus. Furthermore, for example, when the ratio of the strong wavelength of the wakeful stimulus supplied to the sleeping person is gradually increased from the start of lighting to a predetermined time before the scheduled wake-up time, the rate of change in which the ratio of the strong wavelength of the wakeful stimulus is increased is appropriately set. be able to. In other words, the awakening stimulus received by the sleeper varies depending on the variation rate of the wavelength characteristic of light, and therefore the variation rate of the wavelength can be appropriately set according to the physical condition of the sleeper.

    Further, according to the sixth invention, the illuminance and wavelength of the illumination means (31) when waking up the sleeping person are appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. Can do. Thereby, for example, when the sleeper is in a deep sleep state just before the scheduled wake-up time, the light stimulus by the illumination means (31) illuminance and wavelength characteristics can be strengthened and surely induced to the awake state. it can. In addition, if the sleeper is in a shallow sleep state just before the scheduled wake-up time, the light stimulus due to the illuminance and wavelength characteristics of the lighting means (31) will be weakened to ensure that the sleeper will not be excessively stimulated. Can be induced to awake state. Depending on the sleeper, the sensitivity to illuminance may be strong or the sensitivity to a strong wavelength of awakening stimulus may be strong. The wavelength can be set as appropriate.

    According to the seventh invention, the lighting start time, the illuminance, and the wavelength of the lighting means (31) when the sleeping person is awakened are set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. It can be set appropriately. Thereby, for example, when the sleeper is in a deep sleep state slightly before the scheduled wake-up time, the illumination start time is advanced or the light stimulation by the illumination means (31) with the light intensity and wavelength characteristics is strengthened. It can be surely induced to an awake state. In addition, if the sleeper is in a shallow sleep state just before the scheduled wake-up time, the lighting start time may be delayed or the light stimulus due to the illuminance and wavelength characteristics by the lighting means (31) may be weakened to It is possible to reliably induce the awake state without giving a special stimulus. Furthermore, the illuminance, the wavelength, and the illumination start time can be appropriately set according to the fluctuation rate of the illuminance and the wavelength, the sensitivity of the sleeper to the illuminance and the strong wavelength of the awakening stimulus.

    Further, according to the eighth aspect, the illumination end time and illuminance of the illumination means (31) in the early bedtime can be appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeper. In other words, the lighting end time can be appropriately set according to the depth of the sleep state of the sleeper in the early sleep period, or the illuminance can be set so as not to disturb the sleeper sleep state. Can be guided to a state. Furthermore, since the illumination end time and illuminance can be set variably, for example, when the illumination ends with gradually decreasing from the maximum illuminance, even if the maximum illuminance is varied, the variation rate when the illuminance decreases is changed. It can be set appropriately. That is, since the awakening stimulus received by the sleeper varies depending on the variation rate of the illuminance, the variation rate of the illuminance can be appropriately set according to the physical condition of the sleeper.

    According to the ninth aspect, the lighting start time of the lighting means (31) when the sleeping person is awakened can be appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. Therefore, for example, it is possible to surely wake up the sleeping person at the desired scheduled time to wake up.

    According to the tenth aspect of the invention, since the lighting start time of the lighting means (31) for awakening the sleeping person is at least one hour before the scheduled wake-up time, the sleeping person is unnecessary. It is possible to prevent awakening early, and to improve the comfort when the sleeping person awakens at the scheduled wake-up time.

    According to the eleventh aspect of the invention, the illuminance of the lighting means (31) when awakening the sleeping person can be appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. Thereby, for example, when a sleeper is in a deep sleep state just before the scheduled wake-up time, the light means by the illumination means (31) and the light stimulus due to the illuminance fluctuation can be strengthened and surely induced to the awake state. On the other hand, if the sleeper is in a light sleep state just before the scheduled wake-up time, weaken the light stimulus due to the illuminance and illuminance fluctuations by the lighting means (31) without causing excessive sleep stimulus , Can be surely induced to awake state.

    According to the twelfth aspect of the invention, since the maximum illuminance of the illuminating means (31) is set within the range of 500 lux or more and 2000 lux or less, the sleeping person is surely guided to the awake state. Can do.

    According to the thirteenth aspect of the invention, when the sleeper is awakened, the illumination means (31) determines the arrival time of the maximum illuminance at which the illuminance reaches the maximum according to the individual difference, preference, physical condition, environment, etc. of the sleeper. Therefore, it can be set appropriately between the lighting start time and before the scheduled wake-up time. Thereby, for example, when the sleeping person is in a deep sleep state just before the scheduled wake-up time, the light means by the lighting means (31) is strongly stimulated by shortening from the lighting start time to the arrival time of the maximum illuminance. While it can be reliably guided to the awake state, if the sleeping state is shallow immediately before the scheduled wake-up time, the light from the lighting means (31) is increased by increasing the time from the lighting start time to the arrival time of the maximum illuminance. By weakening the stimulation, it is possible to surely induce the sleep state without giving excessive sleep to the sleeper.

    Further, according to the fourteenth aspect, the wavelength of the illumination means (31) for awakening the sleeping person can be appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person. Thereby, for example, when the sleeper is in a deep sleep state just before the scheduled wake-up time, the sleeper is surely awakened by being supplied with a strong wavelength of the wakeful stimulus from the lighting means (31). If the sleeper is in a light sleep state just before the scheduled wake-up time, the sleeper will gradually be awakened after the light (31) is supplied with light of a weak wavelength In such a manner, a strong wavelength can be supplied, so that the sleeper can be reliably induced to awake without being excessively stimulated.

    According to the fifteenth aspect, the wavelength of the illuminating means (31) can be easily made variable by changing the illuminance of the light source means (41, 42) having different wavelength characteristics.

    According to the sixteenth aspect of the invention, the wavelength of the illuminating means (31) can be easily varied by increasing or decreasing the range in which the optical filter (60) covers the light source means (41, 42). Can be.

    According to the seventeenth aspect of the present invention, when the sleeping person is awakened, the light of the wavelength of the illuminating means (31) is gradually increased at the wavelength of the illumination means (31). Therefore, the sleeper can be comfortably guided to the awake state without feeling uncomfortable or unnecessarily awakening.

    According to the eighteenth aspect of the invention, since the light having a strong wavelength of arousal stimulation is light having a wavelength in a predetermined range with reference to 464 nm, the sleeping person can be reliably guided to the awake state.

    According to the nineteenth aspect, the illumination end time of the illumination means (31) in the early bedtime can be set as appropriate according to the individual difference, preference, physical condition, environment, etc. of the sleeper. That is, since the lighting end time can be appropriately set according to the depth of the sleep state of the sleeper in the early sleep state, the sleeper can be guided to a deep sleep state after falling asleep.

    According to the twentieth invention, the illumination end time of the illumination means (31) in the early bedtime can be set as appropriate within 30 minutes from the scheduled sleep time. If it is deep, it is possible to prevent the sleeping person from receiving light stimulation of the lighting means (31) for a long time by making the lighting end time early, while being guided to a shallow sleep state, If the sleep state of the sleeper is shallow, the sleep end time can be delayed by preventing the sleeper from stimulating sudden fluctuations in the illuminance of the lighting means (31). It is possible to prevent the state from being induced or awakened.

    According to the twenty-first aspect, the illuminance of the illumination means (31) in the early bedtime can be appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeper. In other words, it is possible to set the illuminance suitable for the sleeping person to read immediately after entering the bed and to set the illuminance so as not to disturb the sleeping of the sleeping person. Can be induced to sleep.

    According to the twenty-second aspect of the invention, since the maximum illuminance of the lighting means (31) in the early bedtime is set within a range of 50 lux or more and less than 500 lux, It is possible to set the illuminance suitable for reading and the like, and it is possible to surely prevent the sleeping of the sleeping person from being disturbed and to induce the sleeping person to a deep sleeping state.

    According to the twenty-third aspect of the invention, in the early bedtime, the light source means (41) generates light having a wavelength characteristic with a weak arousal stimulus, so that sleepiness of the sleeper is inhibited or the sleeper is shallow after falling asleep. It is possible to prevent the sleep state from being induced to the awake state.

    According to the twenty-fourth aspect of the invention, the optical filter (60) reliably prevents light with a strong arousal stimulus from being supplied to the sleeper regardless of the wavelength characteristics of the light source means (41). Can do.

    According to the twenty-fifth aspect of the invention, the light having a weak wavelength of the arousal stimulus is light in a wavelength region excluding a predetermined range of wavelengths based on 464 nm. It is possible to prevent a sleeper from being brought into a light sleep state after being asleep and being induced to an awake state.

    According to the twenty-sixth aspect of the present invention, the illuminance of the illumination means (31) during sleep can be set as appropriate according to individual differences, preferences, physical condition and environment of the sleeper. This makes it possible to fall asleep again without feeling uneasy even if the sleeper unexpectedly awakens during sleep.

    According to the twenty-seventh aspect of the invention, since the illuminance of the illumination means (31) during sleep is set at 0.3 lux or more and 5 lux or less, the sleeper illuminates the sleep means during sleep. It is possible to prevent the light of (31) from being induced into a shallow sleep state or awake state.

    According to the twenty-eighth aspect, since the light source means (41) generates light having a weak wavelength characteristic of awakening stimulus during sleep, the sleeper is illuminated by the illumination means (31) during sleep. It can be prevented from being induced to a shallow sleep state or awake state.

    According to the twenty-ninth aspect, the optical filter (60) can surely supply light with a weak arousal stimulus to a sleeping person regardless of the wavelength characteristics of the light source means (41).

    According to the thirtieth aspect, since the light having a weak wavelength of the arousal stimulus is light in a wavelength region excluding a predetermined range of wavelengths with 464 nm as a reference, the sleeper illuminates during sleep. It is possible to prevent the light of (31) from being induced into a shallow sleep state or awake state.

    According to the thirty-first aspect of the invention, the lighting conditions such as the illuminance of the lighting means (31) provided in the bed main body (10) are set according to individual differences and preferences of sleeping persons sleeping on the bed main body (10). Since it can be set as appropriate according to physical condition and environment, it is possible to improve the comfort of a sleeping person sleeping on the bed body (10) when entering the bed.

    Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1 of the Invention
Embodiment 1 of the present invention is a bed (1) in which a lighting device (30) according to the present invention is provided on a bed body (10) as shown in FIGS.

<Composition of bed>
As shown in FIGS. 1 and 2, the bed main body (10) includes a bed portion (11), a head board (20) that contacts the head side end of the bed portion (11), and a bed portion (11). A canopy (23) is provided.

    The bed portion (11) is formed in a flat rectangular parallelepiped base shape. An air conditioning unit using an electric heater (not shown) or the like is accommodated in the bed portion (11). On the bed part (11), a mattress (13) for sleeping persons to lie is placed. The mattress (13) is formed to be slightly smaller than the area of the upper surface of the bed portion (11). The upper surface of the bed portion (11) has both side spaces (17) exposed from the mattress (13) and leg sides. A space (16) is formed. In the leg side space (16), a leg side air outlet (18) is formed on both sides, and a leg side air inlet (19) is formed in the center. The leg side air outlet (18) is for blowing out conditioned air generated by the air conditioning unit inside the bed part (11), and the leg side air inlet (19) is used for air on the leg side of the sleeper. It is for taking in the said air-conditioning unit. The leg-side space (16) is provided with a curtain holding rod (15). The curtain holding bar (15) extends in the width direction of the bed part (11) while maintaining a predetermined distance from the upper surface of the bed part (11) via the support bars (15a) on both sides of the leg side space (16). The curtain (28) of the canopy (23), which will be described later, holds the curtain (28) so as not to block the leg-side air outlet (18) and the leg-side air inlet (19) of the leg-side space (16) It is.

    The headboard (20) is formed in a horizontally long flat rectangular box shape. An air conditioning unit using a thermoelectric element (not shown) is accommodated in the head board (20). A blow grill (21) for blowing out conditioned air generated by the air conditioning unit is formed on the front surface of the head board (20). A holding portion (20b) for holding the curtain (28) of a canopy (23), which will be described later, in an open state is provided on the upper left side of the head board (20). The headboard (20) has a horizontally elongated recess (20a) formed immediately above the blowing grille (21) on the front surface, and the illumination device (30) according to the present invention is accommodated in the recess (20a). ing.

    As shown in FIG. 2, the canopy (23) includes a curtain (28), a ceiling member (26) for suspending the curtain (28), and a support portion (24) for supporting the ceiling member (26). Yes.

    The support portion (24) includes two support rods (25) formed in a substantially inverted L shape. One end of each of the support bars (25) is fixed to the upper surface of the head board (20), and the other end is located above the central portion of the bed (11).

    The ceiling member (26) is formed in a substantially elliptical shape, and two horizontally long fixing plates (27) are attached to the upper surface by screws, and each of the fixing plates (27) is connected to the above-described bolt by a bolt (not shown). It is connected with each support rod (25). Thus, the ceiling member (26) is supported by the support portion (24).

    The curtain (28) is a laterally long cloth material having a light shielding property, and the upper end side is attached to the ceiling member (26) and is suspended downward from the peripheral edge of the ceiling member (26). On the other hand, the lower end side of the curtain (28) extends to the peripheral edge of the bed body (10) so as to contact both sides of the bed (11) and the side of the leg and the front side of the headboard (20). . Thus, the canopy (23) covers the upper part of the bed part (11) and forms a sleeping space (14) where the sleeping person sleeps.

<Configuration of lighting device>
The said illuminating device (30) is provided with the casing (30a), the illumination unit (31) which is an illumination means, and the controller (32), as shown in FIG.

    The casing (30a) is formed in a horizontally-long rectangular box shape and accommodated in the recess (20a) so that the front surface is flush with the front surface of the headboard (20) as shown in FIG. Has been.

    A horizontally elongated recess (30b) is formed in the substantially left half region of the casing (30a). The illumination unit (31) is attached to the back surface of the recess (30b). An acrylic plate (34) that closes the recess (30b) is disposed in the casing (30a). That is, the light generated by the lighting unit (31) is supplied to the sleeping person via the acrylic plate (34).

    The lighting unit (31) is composed of light emitting diodes (hereinafter referred to as LEDs), and each of 88 light bulb color LEDs (41) and white LEDs (42), which are two light source means having different wavelength characteristics, Four support substrates (43) to which the LEDs (41, 42) are attached are provided.

    As shown in FIG. 10 (a), the light generated by the light bulb color LED (41) contains the most components with a wavelength of around 600 nm, and has a wavelength within a predetermined range (380 nm or more and 525 nm or less) based on 464 nm. The light of is not included. That is, the light bulb color LED (41) contains a lot of light in a wavelength region excluding a predetermined range of wavelengths with 464 nm as a reference. On the other hand, as shown in FIG. 10B, the light generated by the white LED (42) contains a relatively large amount of components having a wavelength within a predetermined range with 464 nm as a reference. Here, it is known that when a human body is exposed to light in a predetermined range with a wavelength of 464 nm as a reference, secretion of a hormone called melatonin that induces sleepiness is suppressed. That is, the light bulb color LED (41) generates light having a wavelength characteristic with a weak arousal stimulus, and is configured as a light source means for sleeping and sleeping, and the white LED (42) It generates light with strong wavelength characteristics. Although the wavelength characteristics of the blue LED are shown in FIG. 10 (c), the light generated by the blue LED also contains a large number of wavelength components in a predetermined range based on 464 nm. Therefore, instead of the white LED (42) A blue LED may be used.

    Each of the support substrates (43) is formed in a horizontally-long rectangular plate shape, and in the upper half part, the light bulb color LEDs (41) are arranged in two rows of 11 rows vertically and in the lower half part, the above-mentioned White LEDs (42) are arranged in 11 rows and 2 rows in the top and bottom. That is, 22 LEDs (41, 42) are attached to each support substrate (43). Further, the four support substrates (43) are arranged in a row in the lateral direction on the back surface of the recess (30b) of the casing (30a). In other words, the illumination unit (31) is arranged so that the white LEDs (42) are arranged in two horizontal rows and 44 columns, and below that, the light bulb color LEDs (41) are arranged in two horizontal rows and 44 columns. Has been placed. In this way, the lighting unit (31) is disposed above the sleeping person lying on the mattress (13), and supplies light stimulation from above the sleeping person to illuminate the sleeping space (14). It is configured as follows. In addition, the number of bulb color LEDs (41) and white LEDs (42) and the arrangement configuration shown here are merely examples.

    The controller (32) is housed in the casing (30a) and controls the illumination of the illumination unit (31) based on time information from a built-in clock (not shown). As shown in FIGS. 3 and 4, the controller (32) includes a lighting control unit (35), a variable control unit (36), and a setting button (33) provided on the front surface of the casing (30a). Yes.

    The lighting control unit (35) lights the lighting unit (31). Specifically, the lighting control unit (35) individually adjusts the voltage applied to the light bulb color LED (41) and the white LED (42) of the lighting unit (31), and each LED (41, 42). Is lit at a predetermined illuminance.

    The variable control unit (36) is connected to the setting button (33) and variably sets illumination conditions such as illuminance of the illumination unit (31). Specifically, the setting button (33) is composed of a plurality of push buttons, and is used for inputting the lighting condition of the lighting unit (31) by an operation of a sleeping person or the like. The variable control unit (36) variably sets the illumination condition based on the information input by the setting button (33), and the light bulb color LED (41) and the white LED (42) are set under the set condition. The lighting control unit (35) is controlled so that each of the illuminations is performed. That is, the variable control unit (36) is configured to control the lighting control unit (35) in order to vary the applied voltage of each LED (41, 42) according to the set illumination condition. Yes. The variable control unit (36) includes a sleep control unit (53), a sleep control unit (54), and a wakefulness control unit (55).

    The sleep control unit (53) includes a sleep time setting unit (53a), an end time setting unit (53b), a sleep illumination setting unit (53c), and a sleep wavelength setting unit (53d). The illumination end time (T2) and the illuminance of the illumination unit (31) in the early bedtime from the sleep state to the sleep state are variably set, and are configured as a sleeping variable means. That is, there are cases where the sleeping person reads a book in the early bedtime, and the lighting unit (31) illuminates the sleeping space (14) in accordance with the operation immediately after the sleeping person enters the bed. Therefore, the sleep control unit (53) sets the illumination end time (T2) and the illuminance of the illumination unit (31) in the early bedtime appropriately and variably.

    The sleep onset time setting unit (53a) sets the expected sleep onset time (T1) to reach the sleep state after the sleeper enters the bed. The sleep time setting unit (53a) is configured to set a specific time and a time (for example, 30 minutes) after entering the bed by an input from a sleeping person or the like. The lighting control unit (35) is configured to gradually decrease the illuminance of the lighting unit (31) from the scheduled sleep time (T1) set by the sleep time setting unit (53a).

    The end time setting unit (53b) sets the lighting end time (T2) of the lighting unit (31) in the early bedtime, and is configured as a bedtime setting means. Specifically, the end time setting unit (53b) is configured to variably set the illumination end time (T2) of the illumination unit (31) within 30 minutes after the scheduled sleep time (T1). In other words, if the sleep state of the sleeper is shallow at the scheduled sleep time (T1) of the sleep time setting unit (53a), the sleeper may be awakened due to a sudden change in the illumination intensity of the lighting unit (31). In order to gradually reduce the illuminance, it is better to lengthen the time from the scheduled sleep time (T1) to the illumination end time (T2) (for example, 10 minutes). On the other hand, if the sleep state of the sleeping person is deep at the scheduled time of sleep (T1), the sleeping person is not awakened even if the illumination intensity of the lighting unit (31) is suddenly changed, but the light stimulus is supplied for a long time. Therefore, it is better to shorten the time from the scheduled sleep time (T1) to the illumination end time (T2) (for example, 0 minutes). Therefore, the end time setting unit (53b) appropriately sets the illumination end time (T2) according to the sleeping state of the sleeper at the scheduled sleep time (T1). Note that the lighting end time (T2) is within 30 minutes after the scheduled sleep time (T1), even if the sleep state of the sleeper is very shallow, if the illuminance is gradually changed over 30 minutes. This is because it is possible to reliably reduce the stimulation caused by fluctuations in the illuminance of the sleeping person. Also, in order to prevent sudden fluctuations in illuminance and to prevent the sleeping sleeper from being supplied with light stimulus for a long time, the time from sleep scheduled time (T1) to lighting end time (T2) is 5 minutes. It is preferable to set to.

    The bedtime illuminance setting unit (53c) sets the illuminance of the lighting unit (31) in the early bedtime, and is configured as a bedtime illuminance setting means. Specifically, the sleeping illuminance setting unit (53c) sets the maximum illuminance of the lighting unit (31) within a range of 50 lux or more and less than 500 lux. Here, the range of the maximum illuminance is illuminance that is suitable for reading and the like and does not hinder a sleeping person from falling asleep. In other words, if the illuminance is less than 50 lux, it may be too dark for reading and may reduce the sleeper's visual acuity. If the illuminance is 500 lux or more, the sleeper may be awakened. There is a risk of it. Therefore, the maximum illuminance is set to be in the range of 50 lux or more and less than 500 lux so that the sleeper is smoothly guided to the sleeping state after reading. A maximum illuminance of 300 lux is most preferable from the standpoints of reading and other actions and preventing sleep onset. The illuminance here refers to the illuminance at a position corresponding to the bedside of the sleeping person, that is, the vicinity of the sleeping person's eyes.

    Further, the sleeping wavelength setting unit (53d) sets the wavelength of the bedtime initial stage of the lighting unit (31). Specifically, the bedtime wavelength setting unit (53d) is set in advance so that light having a wavelength characteristic with a weak arousal stimulus is supplied from the lighting unit (31) so that the sleeper is not induced to awaken in the early stages of bedtime. is doing. In other words, the sleeping wavelength setting unit (53d) turns on the light bulb color LED (41) that does not include much of a predetermined wavelength range based on 464 nm among the two types of LEDs (41, 42) of the lighting unit (31). It is set to let you.

    The sleep control unit (54) includes a sleep illuminance setting unit (54c) and a sleep wavelength setting unit (54d), and illuminates the illumination unit (31) with a predetermined low illuminance during sleep of the sleeper. And is configured as a sleep control means. The term “sleeping” as used herein refers to the illumination of the lighting unit (31) for awakening a sleeper described later after the illumination end time (T2) when the illumination of the illumination unit (31) in the early bedtime ends. Refers to the period before the lighting start time (T3) when. In other words, for example, depending on the sleeping person, the lighting unit (31) has a feeling of anxiety that the sleeping space (14) is dark in the middle of sleep and cannot sleep. ).

    The sleep illuminance setting unit (54c) sets the illuminance of the illumination unit (31) during the sleep and is configured as sleep illuminance setting means. Specifically, the sleep illuminance setting unit (54c) sets the illuminance of the lighting unit (31) within a range of 0.3 lux to 5 lux. By setting the illumination unit (31) to have an illuminance of 0.3 lux or more, the sleeping space (14) is set to 5 lux or less without causing the sleeping space (14) to be in a completely dark state. The light of the unit (31) can be prevented from being induced to a shallow sleep state or awake state. The illuminance here refers to the illuminance at a position corresponding to the bedside of the sleeping person, that is, the vicinity of the sleeping person's eyes.

    The sleep wavelength setting unit (54d) sets the wavelength during sleep of the illumination unit (31). Specifically, the sleep wavelength setting unit (54d) is set in advance so that light having a weak wavelength characteristic of arousal stimulation is supplied from the lighting unit (31) so as not to put the sleeper in a shallow sleep state during sleep. is doing. That is, the sleep wavelength setting unit (54d) turns on the light bulb color LED (41) that does not include much of the predetermined range of wavelengths with reference to 464 nm, out of the two types of LEDs (41, 42) of the lighting unit (31). It is set as follows.

    The wake control unit (55) includes a wake-up time setting unit (55a), a start time setting unit (55b), a wake-up illuminance setting unit (55c), and a wake-up wavelength setting unit (55d). The illumination condition of the illumination unit (31) is variably set. In other words, if the illuminance of the lighting unit (31) is increased, the sleeping person is guided to the awake state and can wake up comfortably at the scheduled wake-up time (T5). Therefore, the lighting unit (31) is used to wake up the sleeping person. Illuminate the sleeping space (14) with greater illuminance during sleep. Therefore, the wakefulness control unit (55) is configured to variably set the illumination start time (T3) and the illuminance for starting the illumination for awakening the sleeper, and is configured as awakening variable means.

    The wake-up time setting unit (55a) is for setting the expected wake-up time (T5) of the sleeping person. Moreover, in this embodiment, it is comprised so that a bedtime may be alert | reported to a sleeping person by the alarm at scheduled wake-up time (T5) set by the wake-up time setting part (55a). The device for generating an alarm may be built in the lighting device (30), or may be an alarm clock or the like separate from the lighting device (30).

    The start time setting unit (55b) sets an illumination start time (T3) at which the illumination unit (31) starts illumination for awakening a sleeper, and is configured as a time setting means for awakening. ing. Specifically, the start time setting unit (55b) is configured to variably set the illumination start time (T3) of the illumination unit (31) one hour before the scheduled wake-up time (T5). In other words, if the sleep state of the sleeper is very deep before the scheduled wake-up time (T5), lighting of the lighting unit (31) is started for a long time (for example, 1 hour) before the scheduled wake-up time (T5). Therefore, it is better to induce the awakening of the sleeper. On the other hand, if the sleep state of the sleeper is shallow, increasing the illuminance for a long time before the scheduled wake-up time (T5) may cause the user to wake up before the scheduled wake-up time (T5). Even if the illuminance is increased immediately before (T5) (for example, 5 minutes before), it is possible for the sleeper to wake up reliably. Therefore, the start time setting unit (55b) appropriately sets the illumination start time (T3) according to the sleep state of the sleeper before the scheduled wake-up time (T5). The reason why the hour before the scheduled wake-up time (T5) is to prevent the sleeper from being awakened unnecessarily early.

    The awakening illuminance setting unit (55c) sets the illuminance of the illumination unit (31), and is configured as an awakening illuminance setting means. Specifically, the awakening illuminance setting unit (55c) sets the maximum illuminance of the lighting unit (31) within the range of 500 lux to 2000 lux. Here, the range of the maximum illuminance is the illuminance that can surely bring the sleeping person into the awake state. And if this maximum illuminance is large, the awakening stimulus of the sleeper will be strong, and if the maximum illuminance is small, the awakening stimulus of the sleeper will be weak. Therefore, the awakening illuminance setting unit (55c) appropriately sets the maximum illuminance when the sleeping person is awakened according to the sleeping state of the sleeping person. If the maximum illuminance is high, the sleeper can be more reliably guided to the awake state, but if it is increased unnecessarily, the sleeper may be awakened before the scheduled wake-up time (T5), or the sleeper may feel uncomfortable. For example, if the sleeping person is in a moderately shallow sleep state before the scheduled wake-up time (T5), it is preferably 500 lux. The illuminance here refers to the illuminance at a position corresponding to the bedside of the sleeping person, that is, the vicinity of the sleeping person's eyes.

    Further, the awakening illuminance setting unit (55c) is configured to set a change transition of the lighting unit (31). Specifically, the arrival time (T4) of the maximum illuminance at which the illumination unit (31) has the maximum illuminance is set between the illumination start time (T3) and the scheduled wake-up time (T5). In other words, in order for the sleeper to wake up more comfortably and reliably, when the sleep state of the sleeper is very deep, the time from the illumination start time (T3) to the maximum illumination time (T4) is shortened (for example, 0 It is better to increase the illuminance of the lighting unit (31) rapidly to the maximum illuminance and to increase the stimulus to the sleeper so that the lighting time at the maximum illuminance becomes longer. On the other hand, when the sleep state of the sleeper is shallow, the lighting unit (e.g., the maximum illuminance is reached at the scheduled wake-up time) from the lighting start time (T3) to the arrival time (T4) of the maximum illuminance is increased. It is better to weaken the stimulus given to the sleeping person so that 31) gradually increases gradually to reach the maximum illuminance and the lighting time at the maximum illuminance is shortened. Therefore, the awakening illuminance setting unit (55c) appropriately sets the arrival time (T4) of the maximum illuminance according to the sleeping state of the sleeping person or the like.

    The awake wavelength setting unit (55d) sets the wavelength of the illumination unit (31). Specifically, the wakefulness wavelength setting unit (55d) is set in advance so that light having a strong wakefulness wavelength characteristic is supplied from the lighting unit (31) in order to guide the sleeper to the wakefulness state. . That is, the awakening wavelength setting unit (55d) turns on the white LED (42) including a large number of wavelengths in a predetermined range with 464 nm as a reference, out of the two types of LEDs (41, 42) of the lighting unit (31). It is set.

<Operation of lighting device>
Next, operation | movement of an illuminating device (30) is demonstrated based on FIG. Here, the operation according to the condition such as the physical condition of one sleeper will be described by exemplifying the first to fourth patterns.

    First, as a first pattern, an operation when the physical condition of a sleeping person is in a normal state will be described. In the normal state, the above-mentioned sleeper reads a book after entering the bed, reaches sleep state in about 30 minutes after the start of bed entry, and enters a sleep state for a while after entering the sleep state, and a little before the expected wake-up time (T5) ( For example, a sleep state becomes shallow about 15 minutes ago.

    Therefore, the illumination of the illumination device (30) changes as shown in FIG. In other words, the sleep time setting unit (53a) of the sleep control unit (53) sets the expected sleep time (T1) 30 minutes after the bedtime start time (T0) by the operation of the sleeper setting button (33). The end time setting unit (53b) sets the illumination end time (T2) 5 minutes after the scheduled sleep time (T1), and the sleeping illuminance setting unit (53c) sets the maximum illuminance at the beginning of sleeping to 300 lux. . The sleep illuminance setting unit (54c) sets the illuminance during sleep to 3 lux by the operation of the sleeper setting button (33). On the other hand, the start time setting unit (55b) of the wakefulness control unit (55) sets the lighting start time (T3) to 10 minutes before the scheduled wake-up time (T5) by operating the sleeper setting button (33). The awakening illuminance setting unit (55c) sets the maximum illuminance to 500 lux and sets the arrival time (T4) of the maximum illuminance to the same time as the scheduled wake-up time (T5).

    Thereby, as shown by the solid line in FIG. 5A, when the sleeping person starts to enter the sleeping space (14) of the bed (1), the lighting control unit (35) 53), the light bulb color LED (41) of the lighting unit (31) is turned on by the bedtime wavelength setting unit (53d), and the light bulb color LED (41) is set at an illuminance of 300 lux by the setting of the bedtime illumination setting unit (53c). Light up. The lighting control unit (35) maintains an illuminance of 300 lux for 30 minutes after entering the bed according to the setting of the sleep time setting unit (53a), and the sleeper reads a book while being maintained at the 300 lux. Then, the lighting control unit (35) gradually decreases the illuminance from 300 lux to 3 lux set by the sleep illuminance setting unit (54c) over 5 minutes by the setting of the end time setting unit (53b). At this time, the sleeper is in a slightly shallow sleep state, but since the illuminance is gradually decreased from 300 lux to 3 lux, since the illuminance does not change rapidly, the sleeper is induced to the awake state. There is nothing.

    During sleep, the lighting control unit (35) lights the light bulb color LED (41) of the lighting unit (31) by the sleep wavelength setting unit (54d), and sets the sleep illuminance setting unit (54c). The light bulb color LED (41) is turned on at an illuminance of 3 lux. Thereby, a sleep state of a sleeper is not induced to a shallow sleep state during sleep. Further, even if the sleeping person wakes up unexpectedly, the sleeping space (14) is maintained at 3 lux, so that the sleeping person can fall asleep again without feeling uneasy.

    Thereafter, the lighting control unit (35) turns on the light bulb color LED (41) 10 minutes before the scheduled wake-up time (T5) by the setting of the start time setting unit (55b) of the awakening control unit (55). While stopping, as shown with the broken line of Fig.5 (a), lighting of white LED (42) is started. At this time, the lighting control unit (35) gradually increases the illuminance of the white LED (42) by the awakening illuminance setting unit (55c) of the awakening control unit (55), and the maximum illuminance of 500 at the scheduled wake-up time (T5). Lux. In addition, at the scheduled wake-up time (T5), the alarm clock operates to generate an alarm sound. Here, the sleeper is in a state of shallow sleep slightly before the scheduled wake-up time (T5), but since the illuminance of the white LED (42) does not fluctuate abruptly, the light stimulus suddenly fluctuates. It is gradually awakened without receiving, and can wake up comfortably when an alarm sound is generated. Further, since the illuminance is 500 lux after the scheduled wake-up time (T5), drowsiness is not induced again after the scheduled wake-up time (T5).

    Next, as a second pattern, an operation when the sleeping person is a little tired than usual will be described. When the bedridden is a little tired, the sleeper is in a moderately deep sleep state even slightly before the scheduled wake-up time (for example, 15 minutes before).

    Therefore, the illumination of the illumination device (30) fluctuates as shown in FIG. In other words, the start time setting unit (55b) of the wakefulness control unit (55) sets the lighting start time (T3) one hour before the scheduled wake-up time (T5) by operating the sleeper setting button (33). The awakening illuminance setting unit (55c) sets the maximum illuminance to 500 lux and sets the maximum illuminance arrival time (T4) 10 minutes after the lighting start time (T3) (50 minutes before the scheduled wake-up time (T5)) Set to. The other settings are the same as when the sleeper is in a normal state.

    Thereby, in the early bedtime and in the middle of sleep, the lighting control unit (35) causes the light bulb color LED (41) to be the same as the first pattern by the sleep control unit (53) and the sleep control unit (54). Light up. And at the illumination start time (T3), the lighting control unit (35) stops lighting the light bulb color LED (41) and lights the white LED (42) to a maximum illuminance of 500 lux in 10 minutes, This maximum illuminance is maintained. At the scheduled wake-up time (T5), the alarm clock operates to generate an alarm sound. As a result, even if the sleeping person is in a moderately deep sleep state slightly before the scheduled wake-up time (T5), the light intensity gradually increases from one hour before the scheduled wake-up time (T5), so that the sleep is gradually shallow. By being guided to the state and maintained at a maximum illuminance of 500 lux from 50 minutes before the scheduled wake-up time (T5), it is surely a shallow sleep state, so that it is possible to wake up comfortably when an alarm sound is generated.

    In addition, as a third pattern, an operation when the sleeping person is very tired but must wake up at a time earlier than usual on the next day will be described. In such a case, the sleeping person reads a book after entering the bed and enters a very deep sleep state about 30 minutes after the start of the bed entry, and even very shortly before the scheduled wake-up time (for example, 15 minutes before), Deep sleep.

Therefore, the illumination of the illumination device (30) fluctuates as shown in FIG. That means
By the operation of the sleeper's setting button (33), the end time setting unit (53b) of the sleep control unit (53) sets the lighting end time (T2) to the same time as the expected sleep time (T1), and awakening control The start time setting unit (55b) of the unit (55) sets the lighting start time (T3) one hour before the scheduled wake-up time (T5), and the awakening illuminance setting unit (55c) sets the maximum illuminance from normal A large 800 lux is set and the arrival time (T4) of the maximum illuminance is set as the illumination start time (T3). The other settings are the same as when the sleeper is in a normal state.

    Thereby, as shown in FIG.5 (c), the said lighting control part (35) makes the light bulb color LED (41) light for 30 minutes by 300 lux, Then, by the setting of the said end time setting part (53b) The illuminance is rapidly reduced from 300 lux to 3 lux at the scheduled sleep time (T1). Here, since the sleeper is in a very deep sleep state, even when the stimulus of this rapid illuminance fluctuation is received, the sleeper does not wake up. In addition, since the illuminance decreases quickly, no light stimulation is given to the sleeping person for a long time, so that it is possible to prevent the sleeping person from being induced to a shallow sleep state again.

    Thereafter, the lighting control unit (35) maintains the illuminance of the light bulb color LED (41) at 3 lux by the sleep control unit (54). Then, at the illumination start time (T3), the lighting control unit (35) stops the lighting of the light bulb color LED (41) by the awakening control unit (55), while changing the white LED (42) to the maximum illuminance 800. Light up in lux and maintain this maximum illumination. Then, at the scheduled wake-up time (T5), the alarm clock operates to generate an alarm sound. As a result, even if the sleeping person is in a very deep sleep state slightly before the scheduled wake-up time (T5), the maximum illuminance is maintained at 800 lux one hour before the scheduled wake-up time (T5). Since the sleep state is shallow, it is possible to wake up comfortably when an alarm sound is generated.

    In addition, as a fourth pattern, an operation in the case where the next day after going to bed is a sleeping person's holiday or the like will be described. In this case, the bedtime of the sleeping person is sufficiently long, and the sleeping state of the sleeping person is very shallow immediately before the scheduled wake-up time.

Therefore, the illumination of the illumination device (30) changes as shown in FIG. That means
When the sleeper's setting button (33) is operated, the start time setting unit (55b) of the awakening control unit (55) sets the lighting start time (T3) to the scheduled wake-up time (T5), and the awakening illuminance setting unit ( 55c) sets the maximum illuminance to 500 lux.

    Thereby, in the early bedtime and in the middle of sleep, the lighting control unit (35) causes the light bulb color LED (41) to be the same as the first pattern by the sleep control unit (53) and the sleep control unit (54). Light up. Then, at the scheduled wake-up time (T5), the alarm clock is activated and an alarm sound is generated. At the same time, the lighting control unit (35) stops the lighting of the light bulb color LED (41) by the awakening control unit (55). On the other hand, the white LED (42) is lit at a maximum illuminance of 500 lux. Here, the sleep state of the sleeper is very shallow just before the scheduled wake-up time (T5), so the sleeper is comfortable without lighting to induce awakening before the scheduled wake-up time (T5) Can be awakened.

    As described above, the lighting control unit (35) is controlled by the variable control unit (36), thereby changing the applied voltage of each LED (41, 42) to change the illuminance and lighting start and end. However, when the illuminance of each LED (41, 42) of the lighting unit (31) is changed, all 44 LEDs (41, 42) of the same type may change the illuminance. Alternatively, the illuminance may be varied as a whole by increasing or decreasing the number of LEDs (41, 42) to be lit. In other words, when the illuminance of the light bulb color LED (41) is gradually reduced, the number of LEDs (41) that are lit is gradually reduced, for example, 44, 33, 22, or 11, for example. Similarly, when the illuminance of the white LED (42) is gradually increased, the number of lit LEDs is 11, 22, 33, 44, etc. You may make it increase to.

    Moreover, in this embodiment, as shown in FIG. 5, the illumination intensity of the lighting unit (31) changes in a linear manner, but may change in a curved manner, for example, from the illumination start time (T3). The illuminance may not be gradually increased in proportion to the passage of time until the maximum illuminance arrival time (T4), but may be gradually increased while drawing a waveform.

-Effect of Embodiment 1-
In the bed (1), the lighting device (30) starts lighting time and illuminance of the lighting unit (31) in the early bedtime of the sleeping person, and lighting start time of the lighting unit (31) when the sleeping person is awakened. And illuminance can be appropriately set according to the preference and physical condition of the sleeper, so that the sleeper of the sleeper can be guided to a deep sleep state and the comfort when the sleeper awakens is improved. be able to. That is, it is possible to prevent the sleeper from becoming sleep deprived and to improve comfort at the time of getting up.

    Specifically, the end time setting unit (53b) of the sleep control unit (53) can appropriately set the illumination end time (T2) of the illumination unit (31) within 30 minutes from the scheduled sleep time (T1). Therefore, according to the sleep state of the sleeper immediately after the scheduled sleep time (T1), it is possible to appropriately set the time for the sleeper to receive the stimulus of the illuminance fluctuation and the light stimulus received from the lighting unit (31). Moreover, since the maximum illuminance of the illumination means (31) in the early bedtime is set within the range of 50 lux or more and less than 500 lux by the sleep illuminance setting unit (53c), the maximum illumination means (31) maximum The illuminance can be set to an illuminance suitable for reading, and the sleep of the sleeping person can be prevented from being disturbed by the illumination of the illumination means (31).

    During sleep, the sleep illuminance setting unit (54c) of the sleep control unit (54) appropriately sets the illuminance of the lighting unit (31) between 0.3 lux and 5 lux. The lighting of the means (31) does not disturb the sleep of the sleeper and can sleep again without feeling anxiety even if the sleeper awakens unexpectedly during sleep.

    Then, in the early bedtime and in the middle of sleep, the light bulb color LED (41) is lit to supply the sleeper with light having a wavelength characteristic with a weak arousal stimulus that does not include a predetermined range of wavelengths based on 464 nm. As a result, sleep of sleepers is not hindered.

    In addition, the lighting start time (T3) of the lighting unit (31) for waking up the sleeper is set to one hour before the scheduled wake-up time (T5) by the start time setting unit (55b) of the awakening control unit (55). Since it can be set as appropriate, it is possible to wake up the sleeping person at the desired scheduled scheduled time (T5) without waking up the sleeping person unnecessarily early. In addition, since the maximum illuminance can be appropriately set within the range of 500 lux or more and 2000 lux or less by the awakening illuminance setting unit (55c), the sleeper can be surely guided to the awakening state, and this maximum Since the lighting start time can be set with the illuminance, the sleeping person can be more reliably guided to a comfortable awakening state.

    In the four illustrated patterns, the illuminance setting means (55c) of the wakefulness control unit (55) increases the illuminance to the maximum illuminance over 10 minutes or suddenly increases to the maximum illuminance. Can be set variably, for example, it may be increased to the maximum illuminance over 20 minutes, and the variation rate of illuminance can be set to be suitable for the sleeping person. And since the illumination start time is made variable, even if the maximum illuminance is changed, the change rate can be made constant or the change rate can be changed very flexibly. That is, the variation rate of illuminance can be reliably set to be suitable for a sleeping person.

    And when awakening a sleeper, the white LED (42) is turned on to supply the sleeper with light having a wavelength characteristic with a strong awakening stimulus including a large number of wavelengths in a predetermined range based on 464 nm. Therefore, the sleepiness of the sleeping person is surely suppressed, and the sleeping person can be surely guided to the awake state.

<< Embodiment 2 of the Invention >>
In the present embodiment, when the waking wavelength setting unit (55d) of the first embodiment wakes up the sleeping person, the predetermined wavelength is based on 464 nm of the two types of LEDs (41, 42) of the lighting unit (31). Instead of setting only the white LED (42) including many wavelengths in the range to be lit in advance, the light of the illumination unit (31) for the wake-up wavelength setting unit (55d) to wake up the sleeper The wavelength is set to be variable.

    That is, the wake-up wavelength setting unit (55d) is configured as a wake-up wavelength setting means for setting the wavelength distribution of the illumination unit (31) for waking up a sleeper. Specifically, the awake wavelength setting unit (55d) sets the illuminance of the light bulb color LED (41) and the white LED (42) of the illumination unit (31), thereby appropriately setting the wavelength of the illumination unit (31). Is configured to do. That is, the light bulb color LED (41) does not contain much light with a wavelength in a predetermined range based on 464 nm having a strong arousal stimulus, and the white LED (42) has a wavelength in a predetermined range with reference to 464 nm having a strong arousal stimulus. Therefore, the wakefulness wavelength setting unit (55d) sets the illuminance of the light bulb color LED (41) to be large and the illuminance of the white LED (42) to be small so that the wavelength of strong wakefulness stimulation is reduced. Or by setting the illuminance of the light bulb color LED (41) to be small and the illuminance of the white LED (42) to be large so that the wavelength of strong arousal stimulation is increased. Furthermore, the wakefulness wavelength setting unit (55d) has a wavelength of strong wakefulness stimulation in the light supplied to the sleeper by the lighting unit (31) from the start of lighting to wake the sleeper of the lighting unit (31). The light is gradually increased.

    The operation of the illumination device (30) will be described based on the four patterns shown in FIG. In addition, in FIG. 6, the change transition from the illumination start time (T3) of the lighting unit (31) for awakening the sleeper to the scheduled wake-up time (T5) is illustrated. The illustration is omitted for.

    First, the first pattern will be described with reference to FIG. In the first pattern, the awakening illuminance setting unit (55c) causes the overall illuminance of the illumination unit (31) to gradually increase from the illumination start time (T3) to the scheduled wake-up time (T5), as shown by the solid line c. Set. Further, as shown by the solid line a, the wake wavelength setting unit (55d) gradually increases the illuminance of the light bulb color LED (41) from the illumination start time (T3) to the scheduled wake-up time (T5), as shown by the broken line b. Further, after a predetermined time Δt1 of the illumination start time (T3), the illuminance of the white LED (42) is gradually increased so that the light including a large number of wavelengths in a predetermined range based on 464 nm, which has strong wakefulness stimulation, gradually increases. Set.

    Next, a 2nd pattern is demonstrated based on FIG.6 (b). In the second pattern, the awakening illuminance setting unit (55c) causes the overall illuminance of the lighting unit (31) to gradually increase from the lighting start time (T3) to the scheduled wake-up time (T5), as shown by the solid line c. Set to. In addition, the awakening wavelength setting unit (55d) gradually increases the illuminance of the light bulb color LED (41) from the illumination start time (T3) as indicated by the solid line a, and the illumination start time ( After a predetermined time Δt1 of T3), the illuminance of the white LED (42) is gradually increased so that light including a large number of wavelengths in a predetermined range with reference to 464 nm, which has a strong arousal stimulus, is gradually increased. Further, the awake wavelength setting unit (55d) sets the illuminance of the light bulb color LED (41) to be constant after a predetermined time Δt2 has elapsed from the illumination start time (T3).

    Next, a 3rd pattern is demonstrated based on FIG.6 (c). In the third pattern, as shown by the solid line c, the awakening illuminance setting unit (55c) gradually increases the overall illuminance of the illumination unit (31) from the illumination start time (T3), and the illumination start time (T3). Is set so that the maximum illuminance becomes constant after a predetermined time Δt2 has elapsed. In addition, the awakening wavelength setting unit (55d) gradually increases the illuminance of the light bulb color LED (41) from the illumination start time (T3) as indicated by the solid line a, and the illumination start time ( After the predetermined time Δt1 of T3), the illuminance of the white LED (42) is set to gradually increase. Furthermore, the awakening illuminance setting unit (55c) sets the illuminance of the light bulb color LED (41) to gradually decrease after a predetermined time Δt2 has elapsed from the illumination start time (T3). As a result, light including a large number of wavelengths in a predetermined range with 464 nm, which is a strong wakefulness stimulus, gradually increases, and the illuminance is maintained constant after a predetermined time Δt2 has elapsed from the illumination start time (T3).

    Next, a 4th pattern is demonstrated based on FIG.6 (d). In the fourth pattern, as shown by the solid line c, the awakening illuminance setting unit (55c) has the same illuminance from the illumination start time (T3) to the scheduled wake-up time (T5). Set to gradually increase at. Then, as shown by the solid line a, the awake wavelength setting unit (55d) gradually increases the illuminance of the light bulb color LED (41) from the illumination start time (T3), and after a predetermined time Δt1 of the illumination start time (T3). It sets so that illumination of light bulb color LED (41) may stop. The awake wavelength setting unit (55d) replaces the light bulb color LED (41) with the white color LED (41) after a predetermined time Δt1 of the illumination start time (T3), as indicated by a broken line b. (41) The illumination is gradually increased from the same illuminance immediately before the illumination is stopped, and the light including many wavelengths in a predetermined range based on 464 nm, which has strong wakefulness stimulation, is set to gradually increase. As a result, light including a large number of wavelengths in a predetermined range based on 464 nm, which has strong wakefulness stimulation, gradually increases, while the overall illumination intensity variation of the illumination unit (31) always varies at the same rate.

    In the present embodiment, the wavelength of the lighting unit (31) when the sleeping person is awakened is appropriately set according to the individual difference, preference, physical condition, environment, etc. of the sleeping person by the awakening wavelength setting unit (55d). As a result, the sleeping person can be surely guided to a comfortable awakening. Since the wavelength is set by appropriately setting the illuminance of the light bulb color LED (41) and the illumination color LED (42) as the two light source means, the wavelength can be set very easily.

    In addition, the light of a predetermined range with reference to 464 nm, which has a strong arousal stimulus, is gradually increased at the wavelength of the illumination unit (31) when the sleeper is awakened. It is possible to prevent awakening stimulus from being received. In particular, depending on the sleeper, there may be a constitution that tends to be a shallow sleep state at all times or a constitution that makes it easy for an elderly person to wake up early in the morning. Thus, at the lighting start time (T3), Since it is possible to prevent an excessive awakening stimulus from being given by turning on only the light bulb color LED (41) having a weak wavelength characteristic of awakening stimulus and gradually getting used to the light stimulus, Awakening before the scheduled time (T5) can be prevented.

    Further, when the sleep state of the sleeper is deep and there is no possibility of inducing awakening in the early morning, as in the first embodiment, the wake-up wavelength setting unit (55d) uses the white LED (42) from the illumination start time (T3). ) May be set to light up. Thereby, since only the white LED (42) having a large number of wavelengths in a predetermined range based on 464 nm, which has strong wakefulness stimulation, from the illumination start time (T3) is lit, the sleeper can be surely guided to the wakefulness state.

    And in this embodiment, since the illumination start time (T3), illumination intensity, and wavelength of the illumination unit (31) for awakening a sleeper can be set suitably, the fluctuation rate of illumination intensity of the illumination unit (31) The rate of change of the ratio including the wavelength with a strong arousal stimulus can also be set as appropriate. Also, even if the change in overall illuminance of the lighting unit (31) is set to one pattern, there are a plurality of patterns of change in illuminance of each LED (41, 42) corresponding to this one pattern. The illuminance and the wavelength can be set according to the sensitivity to the illuminance of the person and the sensitivity to the wavelength of the sleeping person. Thereby, the comfort at the time of awakening of a sleeping person can be improved reliably.

    Other configurations, operations, and effects are the same as those of the first embodiment.

<< Embodiment 3 of the Invention >>
In this embodiment, as shown in FIG. 7, the illumination unit (31) is an optical filter (60) that covers the light bulb color LED (41) and a movable member that is a movable means for moving the optical filter (60) (61). And the wakefulness wavelength setting part (55d) of Embodiment 2 sets the illumination intensity of the light bulb color LED (41) and the white LED (42) of the illumination unit (31), thereby changing the wavelength of the illumination unit (31). Instead of being set appropriately, the awake wavelength setting unit (55d) of the present embodiment, in addition to the illuminance setting of each LED (41, 42), the optical filter (60) the light bulb color LED (41). The wavelength distribution of the illumination unit (31) is set by controlling the movable member (61) so that the range to be covered varies.

    Specifically, the optical filter (60) has the filter characteristics shown in FIG. 8, the transmittance of light having a wavelength of 488 nm or less is 5% or less, and the transmittance of light having a wavelength of 530 nm or more is 72% or more. In other words, the optical filter (60) blocks 95% or more of light in a predetermined range based on 464 nm, which has a strong arousal stimulus, and reliably transmits light having a wavelength of 530 nm or more, which has a weak arousal stimulus. Note that the optical filter (60) does not completely block all light in a predetermined range with a wavelength of 464 nm as a reference, but reliably reduces light in a predetermined range with a wavelength of 464 nm as a reference, and awakens. It transmits light with low stimulation more reliably than light with strong arousal stimulation.

    The optical filter is formed in a horizontally long plate shape so as to cover the light bulb colored LEDs (41) arranged in the horizontal 44 rows in two upper and lower stages. The movable member (61) includes a rotating part (62) and an arm part (63). The rotating part (62) is arranged below the support substrate (43) of the lighting unit (61) and is configured to rotate. One end of the arm part (63) is connected to the optical filter (63), and the other end is connected to the rotating part (64). With such a configuration, as shown in FIGS. 7A and 7B, when the rotating part 62 is rotated, the arm part 63 is moved and the optical filter 60 is moved as described above. The range covering the light bulb color LED (41) varies. The awake wavelength setting unit (55d) is configured to control the rotation of the rotating unit (62) of the movable member (61).

    As shown in the first embodiment, the lighting device (30) performs illumination with the light bulb color LED (41) in the early bedtime and in the middle of sleep. At this time, as shown in FIG. 7A, the optical filter (60) covers the light bulb color LED (41). Accordingly, the light of the light bulb color LED (41) shown in FIG. 10A is transmitted through the optical filter (60) while having a weak wavelength of arousal stimulus, while the wavelength within a predetermined range based on 464 nm contained in a small amount. Is reduced.

    And the illumination of the illuminating device (30) for awakening a sleeper fluctuates as shown in FIG. That is, the awakening illuminance setting unit (55c) causes the overall illuminance of the lighting unit (31) to gradually increase at the same rate from the lighting start time (T3) to the scheduled wake-up time (T5), as shown by the solid line c. Set to. The awake wavelength setting unit (55d) gradually increases the illuminance of the light bulb color LED (41) from the illumination start time (T3) as shown by the solid line a, and as shown in FIG. After the predetermined time Δt1 of the start time (T3), the rotating portion (62) of the movable member (61) is controlled so that the light bulb color LED (41) is not covered with the optical filter (60). 41) is set so that a predetermined range of wavelengths based on 464 nm contained in a small amount is also supplied to the sleeping person. Then, the awake wavelength setting unit (55d) stops the light bulb color LED (41) when the predetermined time Δt2 from the illumination start time (T3), while the illuminance of the white LED (42) is reduced as shown by the broken line b. The light intensity is set so as to gradually increase from the same illuminance as when the light bulb color LED (41) is stopped, and light including a large number of wavelengths in a predetermined range based on 464 nm, which has a strong arousal stimulus, is gradually increased.

    In the present embodiment, in the early bedtime and in the middle of sleep, the optical filter (60) is used to reduce light having a strong wavelength of arousal stimulus contained in a small amount in the light bulb color LED (41). It is possible to reliably prevent the supply of intense light. Thereby, a sleeper is not induced | guided | derived to a shallow sleep state or a wakeful state in the early bedtime and in the middle of sleep. In addition, at the illumination start time (T3) of the illumination unit (31) for awakening the sleeping person, the optical filter (60) surely reduces the wavelength of strong awakening stimulation of the light bulb color LED (41). As a result, the sleeper can gradually become accustomed to the stimulus by shining, and an excessive arousal stimulus is not given at the lighting start time (T3). Then, the movable member (61) removes the cover of the light bulb color LED (41) by the optical filter (60), and further performs illumination by the white LED (42), and a predetermined range based on 464 nm, which has a strong arousal stimulus. Since the light containing a large number of wavelengths can be gradually increased, the sleeper can be surely guided to the awake state without being stimulated by a sudden change in wavelength characteristics.

    In the present embodiment, the optical filter (60) is suddenly moved from the illumination start time (T3) to the state shown in FIGS. 7 (a) to 7 (b) from the illumination start time (T3) to the predetermined time Δt1. Of the light bulb color LEDs (41) at the upper stage, the upper light bulb color LED (41) is not covered with the optical filter (60), and the lower light bulb color LED (41) is covered with the optical filter (60). In this way, the portion where the optical filter (60) covers the light bulb color LED (41) may be changed step by step.

    Other configurations, operations, and effects are the same as those of the first embodiment.

<< Other Embodiments >>
About the said embodiment, it is good also as the following structures.

    In the said Embodiment 1, as shown in FIG. 5, although illumination conditions, such as the illumination intensity of a lighting unit (31), were set according to conditions, such as a physical condition of one sleeper, the said bed (1) is a hotel etc. May be set as appropriate according to individual differences, as long as they are for sleeping by different sleepers depending on the day.

    Further, in each of the above embodiments, the details of the lighting conditions such as the illuminance of the lighting unit (31) are set according to the physical condition of the sleeping person, but the normal driving mode and the driving mode when tired are simply set in advance. It is possible that the sleeper can input and set several driving modes, and the sleeper may select the driving mode.

    In the bed (1) of the first embodiment, the bed body (10) includes the canopy (23) and the sleeping space (14) is covered with a light-shielding curtain (28). 10) may be configured without the canopy (23). In that case, the natural light of the sun may enter through the window of the room where the bed body (10) is installed. Considering the amount of natural light, the illuminance of the lighting unit (31) of the lighting device (30) Etc. may be set as appropriate. That is, according to the environment of the sleeping space (14), the illuminance of the lighting unit (31) may be set as appropriate.

    In the first embodiment, the sleeper predicts his / her sleep state in advance by the setting button (33) and inputs the operation of the lighting unit (31). By providing a sensor or the like for detecting the sleep state of the person, the illumination condition such as the illuminance of the illumination unit (31) may be appropriately set according to the information of the sensor without input by the sleeping person.

    In the first embodiment, the entire lighting device (30) is housed in the bed (1). However, at least only the lighting unit (31) may be provided. In that case, the bed control unit (53 ) And the awakening control unit (55) may be provided in a remote controller or the like. Furthermore, the lighting device (30) may be a separate desk lamp from the bed (1), or it is attached to the ceiling of a room for sleeping people who are provided with a bed or futon. Another indoor lighting device may be used.

    In Embodiments 2 and 3, the overall illuminance of the illumination unit (31) is set by the wakefulness illuminance setting unit (55c), and the illuminance of each LED (41, 42) is set by the wakefulness wavelength setting unit (55d). However, even if the change of the overall illuminance of the lighting unit (31) is set to one pattern in the awakening illuminance setting unit (55c), the change of the illuminance of each LED (41, 42) corresponding to this one pattern Since there are a plurality of patterns, it is not limited to the variation transition pattern shown by the LEDs (41, 42) shown in the second and third embodiments. Alternatively, the awakening illuminance setting unit (55c) may not set the overall illuminance, but only the awakening wavelength setting unit (55d) may set the illuminance of each LED (41, 42).

    In each of the above embodiments, the LEDs (41, 42) which are two types of light source means having different wavelength characteristics are provided. However, one type of light source means may be provided. And when an illumination unit (31) is provided only with white LED (42), using the optical filter (60) of Embodiment 3, the awakening stimulus of white LED (42) is strong in the early stage of bed entry and during sleep. A predetermined range of wavelengths with 464 nm as a reference may be blocked or reduced, and only light having a weak wavelength of arousal stimulation may be supplied to the sleeping person.

    Furthermore, in each of the above-described embodiments, the lighting unit (31) is illuminated in the initial stage of sleeping, in the middle of sleeping, and in all cases when the sleeping person is awakened. For example, the sleeping person does not read a book after entering the bed. If you want to fall asleep immediately and want to be dark in the middle of sleep, you may operate with the setting button (33) etc. so as not to control the sleep control unit (53) and sleep control unit (54) .

    In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or its use.

    As described above, the present invention is useful for a lighting device that illuminates a sleeping space where a sleeper sleeps and a bed provided with the lighting device.

It is a schematic perspective view which shows the state except the canopy in the bed main body of the bed which concerns on Embodiment 1. FIG. It is a schematic perspective view which shows the state which closed the canopy of the bed which concerns on Embodiment 1. FIG. It is a schematic block diagram of the illuminating device which concerns on Embodiment 1. FIG. It is a schematic block diagram which shows the structure of the illumination unit of the illuminating device which concerns on Embodiment 1, and a controller. It is a figure which shows operation | movement of the illuminating device which concerns on Embodiment 1, and is a figure which shows the fluctuation transition of the illumination intensity of light bulb color LED and white LED. It is a figure which shows operation | movement of the illuminating device which concerns on Embodiment 2, and is a figure which shows the fluctuation transition of the illumination intensity of the light bulb color LED, white LED, and the whole illumination unit. It is a longitudinal cross-sectional view of the illumination unit of the illuminating device which concerns on Embodiment 3. It is a related figure of the wavelength of the optical filter which concerns on Embodiment 3, and the transmittance | permeability. It is a figure which shows operation | movement of the illuminating device which concerns on Embodiment 3, and is a figure which shows the fluctuation transition of the illumination intensity of light bulb color LED, white LED, and the whole illumination unit. It is the relationship figure of the wavelength of the light which LED generate | occur | produces, and emitted light intensity, (a) is a relationship diagram of light bulb color LED, (b) is a relationship diagram of white LED, (c) is a relationship diagram of blue LED. is there.

Explanation of symbols

1 bed
10 bed body
14 Sleeping space
30 Lighting equipment
31 Lighting unit (lighting means)
41 Light bulb color LED (light source means)
42 White LED (light source means)
53 Sleep control unit (variable means for sleeping)
53b End time setting section (time setting means for sleeping)
53c Sleeping illuminance setting section (illuminance setting means for sleeping)
54c Sleep illuminance setting section (illuminance setting means for sleep)
55 Awakening control unit (variable means for awakening)
55b Start time setting part (time setting means for awakening)
55c Awakening illuminance setting section (illuminance setting means for awakening)
55d Awakening wavelength setting section (wavelength setting means for awakening)
60 Optical filter
61 Movable means

Claims (31)

A lighting device comprising lighting means (31) for illuminating a sleeping space (14) to wake a sleeping person,
An illuminating device comprising: an awakening variable means (55) for variably setting at least one of the illumination start time, illuminance, and wavelength of the illumination means (31). A lighting device comprising lighting means (31) for illuminating a sleeping space (14) in the early bedtime of a sleeping person,
An illuminating apparatus comprising: a sleeping variable means (53) that variably sets at least one of the illumination end time and the illuminance of the illumination means (31). A lighting device comprising a lighting means (31) for illuminating a sleeping space (14) where a sleeping person goes to bed,
Sleeping variable means (53) for variably setting at least one of the illumination end time and illuminance at the early bedtime of the illumination means (31), and illumination for awakening the sleeper of the illumination means (31) An illuminating device comprising: awakening variable means (55) for variably setting at least one of a start time, illuminance, and wavelength. In claim 1 or 3,
The awakening variable means (55) includes an awakening time setting means (55b) for setting the illumination start time of the illumination means (31) and an awakening illuminance setting means (55c) for setting the illuminance. And a lighting device. In claim 1 or 3,
The waking variable means (55) includes waking time setting means (55b) for setting the lighting start time of the lighting means (31) and waking wavelength setting means (55d) for setting the wavelength. A lighting device comprising the lighting device. In claim 1 or 3,
The waking variable means (55) comprises waking illuminance setting means (55c) for setting the illuminance of the illuminating means (31) and waking wavelength setting means (55d) for setting the wavelength. A lighting device characterized by that. In claim 1 or 3,
The waking variable means (55) includes waking time setting means (55b) for setting the lighting start time of the lighting means (31), and waking illuminance setting means (55c) for setting the illuminance. An illuminating device comprising: waking wavelength setting means (55d) for setting a wavelength. In claim 2 or 3,
The sleep changing means (53) includes a sleep time setting means (53b) for setting the illumination end time of the illumination means (31) and a sleep illuminance setting means (53c) for setting the illuminance. A lighting device characterized by comprising: In claim 1 or 3,
The awakening variable means (55) includes an awakening time setting means (55b) for setting an illumination start time of the illumination means (31). In any one of Claims 4, 5, 7 and 9,
The wake-up time setting means (55b) is configured to set the lighting start time of the illuminating means (31) one hour before the scheduled wake-up time or later. In claim 1 or 3,
The awakening variable means (55) includes an awakening illuminance setting means (55c) for setting the illuminance of the illumination means (31). In any one of claims 4, 6, 7 and 11,
The illuminance setting means (55c) for awakening is configured to set the maximum illuminance of the illumination means (31) within a range of 500 lux to 2000 lux. In any one of claims 4, 6, 7 and 11,
The awakening illuminance setting means (55c) is configured to set the arrival time of the maximum illuminance at which the illumination means (31) has the maximum illuminance between the illumination start time and the scheduled wake-up time. A lighting device. In claim 1 or 3,
The awakening variable means (55) includes awakening wavelength setting means (55d) for setting the wavelength of the illumination means (31). In any one of Claims 5, 6, 7 and 14,
The illumination means (31) includes a plurality of light source means (41, 42) having different wavelength characteristics,
The waking wavelength setting means (55d) is configured to set the wavelength distribution of the illumination means (31) by setting the illuminance of each of the light source means (41, 42). Lighting device. In any one of Claims 5, 6, 7 and 14,
The illumination unit (31) includes a light source unit (41, 42) that generates light, an optical filter (60) that covers the light source unit (41) and blocks or reduces light of a wavelength in a specific region, and the optical unit Movable means (61) for moving the filter (60),
The waking wavelength setting means (55d) is configured to control the movable means (61) in order to vary the range in which the optical filter (60) covers the light source means (41, 42). A lighting device characterized by that. In any one of Claims 5, 6, 7 and 14,
The illuminating device is characterized in that the wavelength setting means (55d) for awakening is configured to gradually increase light having a wavelength with a strong awakening stimulus from the start of illumination of the illuminating means (31). In claim 17,
The illuminating device according to claim 1, wherein the light having a strong wavelength of arousal stimulation is light having a wavelength in a predetermined range with 464 nm as a reference. In claim 2 or 3,
The bed changing means (53) includes a bed time setting means (53b) for setting a lighting end time of the lighting means (31). In claim 8 or 19,
The illumination means (31) is configured such that the illuminance gradually decreases from the scheduled sleep time,
The bedtime setting means (53b) is configured to set the lighting end time of the lighting means (31) within 30 minutes after the scheduled sleep time. In claim 2 or 3,
The sleeping variable means (53) includes an illuminance setting means (53c) for sleeping for setting the illuminance of the illumination means (31). In claim 8 or 21,
The sleeping illuminance setting means (53c) is configured to set the maximum illuminance of the illuminating means (31) within a range of 50 lux or more and less than 500 lux. In claim 2 or 3,
The illuminating device (31) includes a light source means (41) for sleeping that generates light having a wavelength characteristic with a weak awakening stimulus in the early bedtime. In claim 2 or 3,
The illumination means (31) includes a light source means (41) for generating light and a light source means (41) that covers the light source means (41) in the early bedtime to block or reduce light having a strong arousal stimulus, and a weak wavelength for the arousal stimulus. And an optical filter (60) that transmits the light. In claim 23 or 24,
The illuminating device according to claim 1, wherein the light having a weak wavelength of the arousal stimulus is light in a wavelength region excluding a predetermined range of wavelengths with 464 nm as a reference. In any one of Claims 1, 2, and 3,
The lighting means (31) controls the sleeping space (14) during sleep of the sleeper so as to illuminate the sleeping space (14) with a predetermined low illuminance, and the lighting means (31) An illuminating device comprising: an illuminance setting means (54c) for sleep that variably sets low illuminance. In claim 26,
The illuminance setting means (54c) for sleep is configured to set the predetermined low illuminance of the illuminating means (31) at 0.3 lux or more and 5 lux or less. In claim 26,
The illuminating device (31) includes a light source means (41) for sleeping while generating light having a wavelength characteristic with a weak awakening stimulus during sleeping. In claim 26,
The illuminating means (31) includes a light source means (41) for generating light and a light source means (41) that covers the light source means (41) during sleep to block or reduce light having a strong wavelength of arousal stimulus, and a weak wavelength of the arousal stimulus. And an optical filter (60) that transmits the light. In claim 28 or 29,
The illuminating device according to claim 1, wherein the light having a weak wavelength of the arousal stimulus is light in a wavelength region excluding a predetermined range of wavelengths with 464 nm as a reference. A lighting device (30) according to any one of claims 1, 2 and 3, and a bed body (10) for sleeping by a person,
The bed, wherein at least the illumination means (31) is provided in the bed body (10).

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