JP6616254B2 - Lighting device - Google Patents

Description

    The present invention relates to a lighting device, and more particularly to a lighting device provided in a bedroom.

  It is known that the brightness of the lighting in the bedroom and the color temperature affect sleep, and the ambient brightness when waking up affects the sleep and awakening of the sleeper. Sleepers may feel comfortable waking by receiving natural light from the morning sun, and a comfortable awakening must be obtained in order for the sleeper to feel comfortable sleep. .

  Here, Patent Document 1 includes a description of controlling the brightness and color temperature of a lighting fixture including a ceiling lighting fixture provided in a sleeping room when a sleeping person wakes up. In Patent Document 1, when lighting of a lighting fixture is controlled in the pre-wake-up mode, the output of the ceiling lighting fixture is gradually increased (brightened) until the illuminance becomes 20 lx (lux) or less to 500 lx or more, and the color of the illumination light. The ceiling lighting fixture is controlled so that the temperature is from 3000 k (Kelvin) or less to 5000 k or more.

Japanese Patent Laying-Open No. 2015-2832

  By the way, the brightness and color of the sky due to natural light when the morning sun rises are not necessarily uniform. In Patent Document 1, the output of the ceiling lighting device is gradually increased and the color temperature is controlled to be gradually increased, and the brightness and the color temperature are uniformly changed. Such changes in brightness and color temperature do not always produce a comfortable wake-up feeling for the sleeper.

  This invention is made | formed in view of the said fact, and it aims at providing the illuminating device which can feel that a sleeper comfortably woke up.

  A first aspect for achieving the above object is that a plurality of illumination light sources capable of changing brightness and color temperature of each illumination light are arranged in one direction along one wall surface of a bedroom, and each of the illumination light sources At least one of the indirect illumination means for illuminating the ceiling surface of the bedroom, and the brightness of the ceiling surface and the color temperature of light applied to the ceiling surface gradually from one side of the one direction toward the other side. Control means for controlling the lighting of each of the illumination light sources, the brightness of the illumination light, and the color temperature of the illumination light so as to be higher.

  In the first aspect, indirect illumination in which a plurality of illumination light sources are arranged from one side in one horizontal direction along one wall surface of the bedroom toward the other side, and the ceiling surface is illuminated by each of the plurality of illumination light sources. Is formed. The plurality of illumination light sources can change the brightness of the illumination light (output of the illumination light source) and can change the color temperature of the illumination light. The control unit controls lighting, brightness (output), and color temperature of each of the plurality of illumination light sources.

  Here, as the one direction, any direction in the bedroom can be applied, but it is preferable to follow the length direction when the resident (sleeping person) goes to bed, and one side of the one direction is the bedtime. It is preferable that it is a person's foot side.

  Before and after sunrise, the color becomes brighter from the direction of the sun (the morning sun) and the color temperature decreases as the distance from the sun increases. The control means controls lighting and brightness of the plurality of lighting fixtures so that the ceiling surface gradually becomes brighter from one side of the bedroom toward the other side. Further, the control means controls the color temperature of each of the plurality of lighting fixtures to gradually increase.

  For this reason, the ceiling surface of the bedroom is gradually brightened from one side in one direction to the other side, and the color (color temperature) for illuminating the ceiling is gradually increased. Further, the bedroom is illuminated by light reflected from the ceiling surface, and gradually becomes brighter from one side in one direction and the color of the light becomes higher. By this, by controlling a plurality of illumination light sources in accordance with the bedtime of the sleeping person, the bedtimer receives a change in brightness and light color similar to natural light due to the sunrise at sunrise before waking up feel. In addition, since one side is the sleeping person's foot side, the sleeping person feels as if receiving natural light from the foot side. Therefore, the sleeping person can wake up by receiving light similar to natural light, and thus feels comfortable when waking up. Further, since the sleeper feels comfortable when waking up, the user can feel comfortable sleeping.

  According to a second aspect, in the first aspect, the control means turns on the plurality of illumination light sources in order from the illumination light source on one side in the one direction.

  In a 2nd aspect, it lights in order from the illumination light source of one side of one direction. As a result, the ceiling surface is illuminated sequentially from one side of the one direction to the other side, so that the sleeper gradually becomes brighter from one side of the one direction to the other side. I feel.

  According to a third aspect, in the first or second aspect, the control means is configured so that the brightness of the illumination light gradually increases from the one-direction illumination light source among the plurality of illumination light sources. Control.

  In the third aspect, the control means controls so that the output gradually increases from the illumination light source on one side in one direction. Thereby, since the brightness is gradually increased from one side of the ceiling surface, the sleeper feels that the brightness of the ceiling surface is gradually increased from one side to the other side in one direction.

  In a fourth aspect according to any one of the first aspect to the third aspect, the control means is configured such that the color temperature of the illumination light applied to the ceiling surface is gradually increased from the first color temperature, Each of the plurality of illumination light sources is controlled to have a second color temperature higher than the first color temperature.

  In the fourth aspect, the color temperature of each of the plurality of illumination light sources is gradually increased from the first color temperature to the second color temperature. As the first color temperature, it is preferable to apply the color temperature of the morning sun before and after sunrise (for example, about 2700 k (Kelvin)), and as the second color temperature, the color temperature of the sun during the day (for example, 5000 k) It is preferable to apply a degree). Thereby, since the change of brightness and color temperature similar to natural light when the morning sun rises is obtained, the sleeping person can wake up comfortably.

  Note that when the color temperature of the illumination light source is high, the ceiling surface becomes brighter than when the color temperature is low, so that the brightness of the ceiling surface can be changed depending on the color temperature. From here, in the 1st mode, not only the 2nd mode to the 4th mode, but also the control means controls so that the color temperature gradually increases from one side of the plurality of illumination light sources. Embodiments can be included. By including this aspect in the first aspect, the ceiling surface can be gradually brightened from one side to the other side, and the color temperature can be gradually brightened from one side to the other side. Changes in brightness and color temperature are obtained, and the sleeper can feel comfortable awakening.

  A fifth aspect includes the sleep state detection means for detecting a sleep state of a sleeping person and the time setting means for setting a wake-up time in any one of the first to fourth aspects, and the control The means includes starting lighting of each of the plurality of illumination light sources according to the wake-up time and the sleep state of the sleeper detected by the sleep state detection unit.

  In the fifth aspect, the bedtime of the sleeping person is set by the setting means. The sleep state detection means detects the sleep state of a sleeper sleeping in the bedroom. As the sleep state detection means, it is only necessary to detect at least whether the sleeper is sleeping or awake. The sleep state detection means determines whether the sleep is deep or shallow when the sleeper is sleeping. It is more preferable if it can be detected.

  The control means controls lighting, brightness (output), and color temperature of the illumination light source according to the wake-up time and the sleep state of the sleeper detected by the sleep state detection means. Thereby, since the brightness of the bedroom and the color temperature of the light can be controlled so that the sleeping person awakens (wakes up) at the rising time, the sleeping person can feel that the sleeping person has comfortably awakened at the rising time.

  According to a sixth aspect, in the fifth aspect, when the sleep state detected by the sleep state detection unit is deep at the first time point earlier than the wake-up time, the control unit After reaching the earlier first time, lighting of the illumination light source on one side in the one direction is started.

  In addition, in a fifth aspect according to the fifth aspect, in the fifth aspect, when the sleep state detected by the sleep state detection unit is shallow at the first time point earlier than the wake-up time, the control unit After reaching a second time later than the first time and earlier than the wake-up time, lighting of the illumination light source on one side in the one direction is started.

  In the sixth aspect, when the sleeper is deeply sleeping at the first time earlier than the wake-up time, the lighting light source on one side is started after the first time earlier than the wake-up time is reached. Further, in the seventh aspect, when the sleep of the sleeper is shallow at the first time point earlier than the wake-up time, one side is reached after reaching the second time earlier than the wake-up time and later than the first time. Start lighting the lighting fixtures.

  The sleep of the sleeper is a deep sleep state and a shallow sleep state, and the sleeper feels that the sleeper could wake up comfortably by waking up naturally from the shallow sleep. From here, as the 1st time, the time set so that the sleeper of deep sleep can wake up comfortably is applied. In addition, as the second time, a time set so that a sleeper who has a shallow sleep can wake up comfortably is applied.

  Thereby, in a 6th aspect, a sleeping person can wake up comfortably from the deep sleep state. Moreover, in the 7th aspect, it can suppress that a sleeper wakes up before the wake-up time, and can wake up comfortably from a shallow sleep state.

  In an eighth aspect according to any one of the fifth to seventh aspects, the control means starts lighting the illumination light source on the one side, and then the illumination light source on the other side has a predetermined brightness. And when the sleep state detecting means detects the awakening of the sleeper before reaching the predetermined color temperature, the plurality of illumination light sources are controlled to have a predetermined brightness and a predetermined color temperature.

  In the eighth aspect, when it is detected that the sleeper has awakened, each of the plurality of illumination light sources has a predetermined brightness and a predetermined color temperature. As the predetermined brightness and color temperature, the brightness and color temperature that can be stimulated to such an extent that the awakened sleeper does not cause discomfort are applied. Further, the predetermined brightness may be the brightness at which the illumination light source is rated output, and if the brightness is capable of stimulating the sleeper, the output is lower than the rated output of the illumination light source. It may be the brightness obtained in. Further, as the predetermined color temperature, the color temperature of the sun during the day (for example, about 5000 k) or a color temperature corresponding to this color temperature can be applied.

  Thereby, since the stimulus of light can be given to the awakened sleeper, the sleeper is surely awakened without being depressed, and it is possible to suppress the occurrence of a lack of sleep. That is, in the state where the sleeper is going to sleep, a lack of sleep occurs when waking up. However, by giving a light stimulus to the awakened sleeper, it is possible to wake up without causing a lack of sleep.

  As described above, according to the first aspect, it is possible to obtain an effect that the sleeper can feel awakened comfortably.

  According to the 2nd aspect, since it lights from the illumination light source of one side, the effect that it can illuminate so that it may become bright from the one side of a ceiling is acquired. Moreover, according to the 3rd aspect, since the brightness is gradually increased from the illumination light source on one side, there is an effect that it is possible to illuminate so as to be bright from one side of the ceiling.

  According to the 4th aspect, since the brightness and the change of the color of light similar to natural light are obtained when the morning sun rises, the effect that the sleeper can feel awakened comfortably is acquired.

  According to the 5th aspect, the effect that the sleeper can wake up so that it may feel comfortable at the time of waking up is acquired.

  According to the 6th aspect, even if sleep is deep, the effect that a sleeping person can wake up comfortably at the time of waking up is acquired. Moreover, according to the 7th aspect, when sleep is shallow, it can suppress that it wakes up before the wake-up time, and the sleeper can wake up comfortably at the wake-up time is acquired.

  According to the eighth aspect, there is an effect that the sleeper can be made to feel comfortable awakening without feeling sleep deficiency.

It is a top view of the bedroom which concerns on this Embodiment. It is a schematic sectional drawing in the side view of a bedroom. It is a schematic block diagram of the illuminating device which concerns on this Embodiment. (A) is a diagram showing a change in the output of a lighting fixture in wake-up assistance lighting control, and (B) is a diagram showing a change in color temperature of the lighting fixture in wake-up assistance lighting control. It is a flowchart which shows the process of the illuminating device at the time of getting up. Each of (A) and (B) is a diagram showing another example of an output change of a lighting fixture.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a bedroom 10 as a living room according to the present embodiment in a plan view, and FIG. 2 shows the bedroom 10 in a sectional view in a side view.

  As shown in FIG. 1, the bedroom 10 is surrounded by walls 12A, 12B, 12C, and 12D. As shown in FIG. 2, the floor 14 of the bedroom 10 is formed by laying a floor board 14 </ b> A on the floor base, and the ceiling 16 is formed by stretching the ceiling board 16 </ b> A on the ceiling base.

  As shown in FIGS. 1 and 2, the walls 12A and 12C of the bedroom 10 are provided with small walls 18A and 18B at intermediate positions between the wall 12B and the wall 12D. The small wall 18A protrudes from the wall portion 12A toward the wall portion 12C, and the small wall 18B protrudes from the wall portion 12C toward the wall portion 12A. The bedroom 10 is divided into a first bedroom portion 20A and a second bedroom portion 20B with the small walls 18A and 18B serving as boundary portions.

  The wall portion 12 </ b> A of the bedroom 10 is provided with a window 22 on each of the first bedroom portion 20 </ b> A side and the second bedroom portion 20 </ b> B, and the window 22 is shielded by a blind (or curtain) 24. Further, the wall portion 12C of the bedroom 10 is provided with a door 26A on the first bedroom portion 20A side and a door 26B on the second bedroom portion 20B side. The bedroom 10 can be entered from the first bedroom section 20A side by opening the door 26A, and can be entered from the second bedroom section 20B side by opening the door 26B.

  On the other hand, the bedroom 10 is provided with two beds 30 (30A, 30B) as a bed. The bed 30A on the first bedroom section 20A side and the bed 30B on the second bedroom section 20B side are in the second bedroom. It arrange | positions on both sides of the boundary part (small wall 18A, 18B) with the part 20B. The beds 30A and 30B are arranged in the length direction along the wall surfaces of the wall portions 12B and 12D, the headboard 32 side is the wall portion 12A side, and the opposite side to the headboard 32 is the doors 26A and 26B. The wall portion 12C is provided. Further, the beds 30A and 30B are arranged close to the wall portion 12A.

  As a result, in the bedroom 10, two residents, one in each of the first bedroom portion 20A and the second bedroom portion 20B, can sleep together. When the resident sleeps on the beds 30A and 30B, the body length direction is the direction along the wall surfaces of the wall portions 12B and 12D, the head side is the wall portion 12A side, and the foot side is the wall portion 12C side. The In the present embodiment, the resident who sleeps on the bed 30 is a sleeper.

  As shown in FIGS. 1 and 2, the bedroom 10 is provided with a descending ceiling 34 and a descending ceiling 36 constituting indirect lighting means. The descending ceilings 34 and 36 are formed by lowering the ceiling plate 16A by a predetermined height (for example, about 275 mm) from the central portions of the first bedroom portion 20A and the second bedroom portion 20B. It is formed in contact with the wall portion 12B and the wall portion 12D. The falling ceiling 36 is provided at an intermediate portion between the wall portion 12B and the wall portion 12D, and the first bedroom portion 20A side is formed as a falling ceiling 36A across the small walls 18A and 18B, and the second bedroom portion 20B. The side is lowered and is a ceiling 36B.

  The bedroom 10 is provided with a lighting device 40 as a lighting device. FIG. 3 is a block diagram illustrating a schematic configuration of the illumination device 40. The lighting device 40 is provided with a plurality of lighting fixtures 42 as illumination light sources and a controller 44 as control means. Four lighting fixtures 42 (lighting fixtures 42A, 42B, 42C, and 42D) are provided in each of the first bedroom portion 20A and the second bedroom portion 20B.

  As shown in FIG. 1, lighting fixtures 42A to 42D are arranged on the upper side of the falling ceiling 36A and the upper side of the falling ceiling 36B, and the lighting fixtures 42A to 42D are lowered and the ceiling plate 16A of the ceilings 36A and 36B. Is hidden by. The lighting fixtures 42 </ b> A to 42 </ b> D are directed toward the ceiling surface (ceiling 16) between the ceilings 34 and 36 as the light irradiation direction decreases (see FIG. 2). The lighting fixtures 42A to 42D are linearly arranged along the wall surfaces of the wall portions 12B and 12D between the wall portion 12A and the wall portion 12C, and the lighting fixture 42A is on the wall portion 12C side. The lighting fixture 42D is attached to the wall portion 12A side in order.

  Thereby, in the bedroom 10 (the first bedroom portion 20A and the second bedroom portion 20B), the illumination light emitted from the lighting fixtures 42A to 42D mainly falls and irradiates the ceiling surface (ceiling 16) between the ceilings 34 and 36. Indirect lighting is formed. In the first bedroom portion 20A and the second bedroom portion 20B, the wall portion 12C side of the ceiling surface is illuminated by the lighting fixture 42A on the wall portion 12C side, and the wall portion 12A on the ceiling surface is illuminated by the lighting fixture 42D on the wall portion 12A side. The side is illuminated. The lighting device 40 has the same configuration on the first bedroom portion 20A side and the second bedroom portion 20B side. In the following, the first bedroom portion 20A side will be described as an example, and the second bedroom portion will be described. The description on the 20B side is omitted.

  The lighting fixtures 42A to 42D are provided with LEDs of a plurality of colors (light emission colors) and a plurality of LEDs for each color, and are linear light sources arranged in a straight line. In addition, the lighting fixtures 42A to 42D can change the brightness and the color temperature by controlling the light emission of each LED.

  In the present embodiment, the lighting fixtures 42A to 42D emit illumination light that includes a range that is equal to or higher than the color temperature CTL that is the first color temperature and is equal to or lower than the color temperature CTH that is the second color temperature. The color temperature CTL is 2700k (Kelvin) corresponding to the color of natural light (bulb color, approximately orange) emitted from the sun before sunrise or sunset (sunlight or sunset), and the color temperature CTH is daytime. It is set to 5000k corresponding to the color (daytime white) of natural light (sunlight) at (noon).

  Each of the lighting fixtures 42A to 42D has the same rated output, and when the four lighting fixtures 42A to 42D are lit at the rated output, in the first bedroom portion 20A and the second bedroom portion 20B, The illuminance of the work surface (for example, a horizontal surface at the height of the upper surface of the bed 30A) is set to 1000 lx (lux) or more.

  The controller 44 of the lighting device 40 shown in FIG. 3 includes a CPU, a ROM, a RAM, a nonvolatile memory (for example, HDD), and an input / output port, and a microcomputer having a general configuration in which these are connected by a bus. (Not shown). In the lighting device 40, the CPU of the controller 44 reads out and executes the program stored in the ROM and the nonvolatile memory, thereby controlling lighting of the lighting fixtures 42A to 42D and controlling the lighting fixtures 42A to 42D. Brightness (output) and color temperature are controlled. At this time, the controller 44 controls the output (brightness) of the lighting fixtures 42 </ b> A to 42 </ b> D in the range of 0% (lights off) to 100% of the rated output (range of 0% or more and 100% or less). Also. The controller 44 controls the color temperature of the illumination light emitted from each of the lighting fixtures 42 </ b> A to 42 </ b> D within a range of the color temperature CTL or higher and the color temperature CTH or lower.

  On the other hand, the lighting device 40 is provided with a sleep sensor 46 as sleep state detection means, and the sleep sensor 46 is provided in the bed 30 (each of 30A and 30B) and connected to the controller 44. The sleep sensor 46 includes a plurality of detection elements (not shown), and the detection elements are arranged on the bed 30. The detection element is attached to each of the plurality of legs of the bed 30 to determine the load, pressure, and changes (body movements) received by the legs of the bed 30 from the sleeping person. Detect as information. The detection element is arranged on the mat of the bed 30 on which the sleeping person lies, and detects at least one of the sleeping person's body movement, the sleeping person's pulse, and the sleeping person's brain wave as sleeping state information. There may be.

  The sleeper enters the bed 30 and sleeps, and during sleep until the sleeper wakes up (wakes up), the sleep sleeps and the deep sleep is repeated. ) The sleeping sensor 46 determines whether the sleeping person has entered the bed 30, is awake (sleeping), or is sleeping (sleeping) based on the sleeping state information detected by the detection element. ) Or leaving the bed. In addition, when the sleeper is sleeping, the sleep sensor 46 determines whether the sleeper is deep or shallow, and also determines whether the sleeper is awake during the sleep (halfway awakening). The sleep sensor 46 outputs a signal indicating the determined sleep state of the sleeping person to the controller 44.

  As such a sleep sensor 46, as long as it can detect whether the sleeper who entered the bed 30 is sleeping, whether the sleep is deep or shallow, and whether it is awake or not, etc., any configuration is possible. Can be applied. Moreover, as the sleep sensor 46, the control part which determines a sleep state from the biological information acquired from the biological information detection sensor used for the sleep management apparatus of Unexamined-Japanese-Patent No. 2006-59596 and a biological information detection sensor, for example. Applicable.

  The bed 30 (30A, 30B) is provided with an alarm timer 48 (see FIG. 3) as a setting means in the vicinity of the head board 32. The wake-up timer 48 is set with a wake-up time as a wake-up time by the sleeper. When the wake-up time is set by the sleeper, the wake-up timer 48 is set at the set time (wake-up time). Awakening sound is urged to wake the sleeping person. The wake-up timer 48 is connected to the controller 44 of the lighting device 40, and the wake-up timer 48 outputs the wake-up time (wake-up time) set by the sleeping person to the controller 44.

  The controller 44 controls the lighting fixtures 42 </ b> A to 42 </ b> D according to the sleep state of the sleeper detected by the sleep sensor 46. At this time, the controller 44 controls lighting, brightness (output), and color temperature of the lighting fixtures 42A to 42D so that the sleeper can obtain a comfortable sleep.

  In addition, the controller 44 stores the wake-up time input from the wake-up timer 48, and controls the lighting fixtures 42A to 42D in accordance with the wake-up time when the sleeping person wakes up. At this time, the controller 44 controls lighting, brightness, and color temperature of the lighting fixtures 42 </ b> A to 42 </ b> D from the sleep state detected by the sleep sensor 46 so that the sleeper can comfortably wake up (hereinafter referred to as wake-up support). Lighting control).

  Here, in the wake-up assist lighting control, lighting and output of the lighting fixtures 42A to 42D are controlled so as to gradually become brighter from the ceiling surface on the wall portion 12C side opposite to the sleeping person's head side. In the wake-up assist lighting control, the lighting fixtures 42A to 42D are controlled so that the color temperature of the illumination light gradually increases. Furthermore, in the wake-up assist lighting control, the lighting start timing, brightness (output), and color temperature of the lighting fixtures 42A to 42D are controlled according to the sleep state of the sleeper detected by the sleep sensor 46.

  The operation of the lighting device 40 will be described below as an operation of the present embodiment. The controller 44 of the lighting device 40 lights and lights the lighting fixtures 42 </ b> A to 42 </ b> D provided in each of the first bedroom portion 20 </ b> A and the second bedroom portion 20 </ b> B when the sleeping person goes to bed (between bedtime and waking up). Controls brightness (output) and color temperature. In the following description, the lighting control of the first bedroom portion 20A will be described assuming that the first bedroom portion 20A of the bedroom 10 is a single bedroom.

  The sleep brightness of the sleeper is affected by the brightness of the light and the color temperature of the light. In order for the sleeper to feel comfortable sleep, the brightness of the light when the sleeper is asleep and when waking up, Changes in brightness of illumination, color temperature of illumination light, and change in color temperature of illumination light are affected.

  From here, the controller 44 lights the lighting fixtures 42A to 42D of the first bedroom portion 20A in accordance with the entry of the first bedroom portion 20A of the sleeping person. At this time, the controller 44 controls the outputs of the lighting fixtures 42A to 42D so that the brightness of the first bedroom portion 20A is 500 lx or less, and illuminates so that the illumination light has a color temperature CTL (CTL = 2700k). The color temperature of the illumination light emitted from the instruments 42A to 42D is controlled. The lighting fixtures 42A to 42D may be turned on when a sleeper who enters and exits the first bedroom section 20A turns on a lighting switch (not shown). It may be performed by detecting the sleeping room of the sleeper by the detecting means.

  The color temperature CTL approximates natural light at sunset (sunset light) and natural light at sunrise (sunlight), and the first bedroom portion 20A has a calm atmosphere suitable for going to bed with reduced brightness. It is said. Accordingly, the first bedroom portion 20A has an atmosphere suitable for encouraging the bedridden who enters the room to go to bed (sleeping).

  Further, when the sleep sensor 46 detects the bedtime of the sleeping person, the controller 44 performs illumination so that the brightness of the first bedroom portion 20A is as dark as about 9 lx without changing the color temperature. Reduce (reduce) the output of the instruments 42A-42D. As a result, the interior of the first bedroom portion 20A is as dark as after sunset, and the sleeper can be urged to fall asleep naturally. Furthermore, when the sleep sensor 46 detects that the sleeper has fallen asleep (sleeps), the controller 44 turns off each of the lighting fixtures 42A to 42D. Thereby, sleep of a sleeping person can be promoted.

  On the other hand, a sleeper who has fallen asleep may awaken (sleep awake) during sleep. When the sleep sensor 46 detects the awakening of the sleeping person, the controller 44 lights the lighting fixtures 42A to 42D so that the brightness of the first bedroom portion 20A is about 9 lx (color temperature CTL). In addition, when the sleep sensor 46 detects that the sleeper who has awakened in the middle is detected by the sleep sensor 46, the brightness of the lighting fixtures 42A to 42D is set so that the brightness of the first bedroom portion 20A becomes 100 lx without changing the color temperature. Change the size. Further, when the sleep sensor 46 detects that the sleeping person has entered the bed, the controller 44 dims the lighting fixtures 42A to 42D so that the brightness of the bedroom 10 becomes 9 lx without changing the color temperature. When the sleeper's sleep is detected, the lighting fixtures 42A to 42D are turned off.

  Thereby, even if the sleeping person awakens in the middle, the first bedroom part 20A is not dark, so the sleeping person can rest in peace and can sleep again. In addition, when a sleeper who has been awakened gets out of bed, if the surroundings are too bright, he / she may feel dazzled (become dizzy). Since the brightness is such that the inside of the first bedroom portion 20A can be grasped, the sleeping person can move in the bedroom 10 with confidence.

  By the way, the sleeper felt that a comfortable awakening was obtained by waking up naturally from a deep sleep through a shallow sleep, and a comfortable sleep (sufficient sleep) was obtained by feeling that a comfortable awakening was obtained feel. In addition, changes in ambient brightness and color temperature of light before waking up affect waking up of a sleeping person. From here, in the illuminating device 40, lighting (lighting timing, brightness change, and color temperature change) of the lighting fixtures 42A to 42D is controlled so that the sleeper feels that he / she naturally woke up in the wake-up assist lighting control.

  In FIG. 4A, changes in lighting and brightness (output) of the lighting fixtures 42A to 42D with respect to time (time) in the wake-up assist lighting control are shown in a diagram. FIG. 4B is a diagram showing a change in the color temperature of the illumination light of the lighting fixtures 42A to 42D with respect to time (time) in the wake-up assist lighting control. FIG. 5 is a flowchart showing processing (lighting control) when the controller 44 of the lighting device 40 executes wake-up assist lighting control. 4A and 4B, the lighting fixtures 42A, 42B, 42C, and 42D are shown as the lighting fixtures A, B, C, and D.

  As shown in FIG. 4 (A), in the wake-up assist lighting control, each of the lighting fixtures 42A to 42D is time t1, t2, t3, t4 before the wake-up time TS based on the wake-up time TS. Set to be lit. Times t1 to t4 are set to t1> t2> t3> t4, and in the present embodiment, they are equally spaced as an example. Thereby, in the wake-up assist lighting control, the lighting fixtures 42A to 42D are sequentially turned on before the wake-up time TS, and when the wake-up time TS is reached, the lighting fixtures 42A to 42D are fully turned on (output 100%). The

  In the wake-up assist lighting control, the outputs (brightness) of the lighting fixtures 42A to 42D are controlled to gradually increase. At this time, the lighting fixture 42A is set to the rated output (output is 100%) when the lighting fixture 42B is turned on, and the lighting fixture 42B is set to the rated output when the lighting fixture 42C is turned on, and the lighting fixture 42D. Is rated output by the wake-up time TS.

  Therefore, in the wake-up support lighting control, when the time (TS-t1) before the wake-up time TS is reached by the time t1, the lighting fixture 42A on the wall 12C side is turned on first. In the wake-up support lighting control, when the time (TS-t4) is the time t4 before the wake-up time TS, the lighting fixture 42D on the side of the wall 12A opposite to the wall 12C is turned on. In the wake-up support lighting control, the next lighting fixture 42B (42C, 42D) is turned on at the timing when the lighting fixture 42A (42B, 42C) reaches the rated output. The lighting fixture 42A (42B, 42C) may reach the rated output before or after the lighting fixture 42B (42C, 42D) is turned on.

  4B, in the wake-up assist lighting control, the color temperature of the illumination light emitted from each of the lighting fixtures 42A to 42D is changed from the color temperature CTL (CTL = 2700k) to the color temperature CTH (CTH = 5000k). It is controlled so as to gradually become higher. At this time, the lighting fixture 42A is controlled to start lighting from the color temperature CTL and reach the color temperature CTH at the alarm time TS. The lighting fixture 42B is turned on at the color temperature CT1 of the lighting fixture 42A at time (TS-t2), and the lighting fixture 42C is turned on at the color temperature CT2 of the lighting fixtures 42A and 42B at time (TS-t3). Is started. Furthermore, lighting of the lighting fixture 42D is started at the color temperature CT3 of the lighting fixture 42A (42A to 42C) at time (TS-t4).

  On the other hand, in the lighting device 40, the execution time ta of the wake-up support lighting control is set prior to the execution of the wake-up support lighting control, and the times t1 to t4 are set from the execution time ta. That is, the time t1 is set from the execution time ta (ta = t1), the times t2 to t4 are set from the time t1, and the times t1 to t4 change relatively by the execution time ta being different.

  In the wake-up assist lighting control, the timing at which the lighting fixtures 42A to 42D are turned on, that is, the execution time ta, is set according to the sleep state of the sleeping person detected by the sleep sensor 46. In the wake-up support lighting control, the time ta1 and the time ta2 shorter than the time ta1 are provided as the execution time ta, and the time ta1 is selected when the sleep of the sleeper is deep, and the sleep of the sleeper is shallow. In the case (not deep), the time ta2 is selected. In the present embodiment, the time ta1 is 10 minutes (ta = 10 min). The time ta2 can be set between 1 minute and 5 minutes. In the present embodiment, the time ta2 is 5 minutes (ta2 = 5 min).

  The controller 44 sets the execution time ta of the wake-up support lighting control from the time ta1 or the time ta2 (ta = ta1 or ta = ta2), and sets the time t1 to t4 from the execution time ta. Therefore, in the wake-up support lighting control, the time ta1 is selected as the execution time ta, so that it is executed during the time ta1 (long-time mode), and the time ta2 is selected as the execution time ta, from the time ta1. Is also executed during a short time ta2 (short-time mode).

  The wake-up assist lighting control ends the process when the wake-up time TS is reached and the lighting fixtures 42A to 42D are fully lit. In addition, when it is detected that the sleeper has woken up after execution is started (after the first lighting fixture 42A is turned on), the wake-up assist lighting control is performed for a predetermined time (for example, 10 seconds to 1 minute or less). Within the preset time), the lighting apparatus 42A to 42D are turned on so as to be fully turned on, and then the process ends.

  When the wake-up time TS is set and the sleeper goes to sleep, the controller 44 executes the flowchart shown in FIG. 5. In the first step 100, whether or not the current time is a time before the wake-up time TS by the time ta 1. To check. When the current time approaches the wake-up time and reaches a time (TS-ta1) that is a time ta1 earlier than the wake-up time TS, an affirmative determination is made in step 100 and the process proceeds to step 102. In this step 102, the sleep state of the sleeper detected by the sleep sensor 46 is acquired, and in the next step 104, it is confirmed whether or not the sleep is deep.

  Here, if the sleep of the sleeper is deep, an affirmative determination is made in step 104 and the process proceeds to step 106. In step 106, the execution time ta of the wake-up assist lighting control is set to the time ta1 (ta = ta1), and the times t1, t2, t3, and t4 are set from the execution time ta (= ta1), and the set time t1 is set. Wake-up support lighting control (long-time mode) is executed based on ~ t4.

  On the other hand, when sleep is shallow (when it is not deep), a negative determination is made in step 104, and the process proceeds to step 108. In this step 108, it is confirmed whether or not the current time is a time (TS-ta2) that is a time ta2 (ta2 <ta1) before the wake-up time TS. As a result, the time (ta1-ta2) has elapsed since the affirmative determination was made in step 100, and the process proceeds to step 110 when the affirmative determination is made in step 108. In step 110, the wake-up assist lighting control execution time ta is set as a time ta2 shorter than the time ta1 (ta = ta2), and the times t1, t2, t3, and t4 are set from the execution time ta (= ta2). Then, wake-up assist lighting control (short-time mode) is executed based on the set times t1 to t4.

  When the wake-up assist lighting control is started, the lighting device 40 first turns on the lighting device 42A on the wall portion 12C side of the sleeping person at the color temperature CTL (2700k), and outputs and the color temperature of the lighting device 42A. Is gradually increased. In the lighting device 40, lighting of the lighting fixture 42B is started at the timing when the lighting fixture 42A reaches the rated output. At this time, the lighting fixture 42B is turned on at a color temperature (color temperature CT1) that matches the color temperature of the lighting fixture 42A, and the output and the color temperature are gradually increased. Similarly, the lighting fixtures 42C and 42D are sequentially turned on as time elapses, and the lighting fixtures 42A to 42D are set to the rated output before reaching the alarm time TS, and the color temperature is the color temperature CTH (5000k). ) Is controlled to reach. As a result, the current time becomes the wake-up time TS, and an affirmative determination is made in step 112 or step 114, whereby the wake-up assist lighting control ends.

  Here, in the first bedroom portion 20A, the lighting fixture 42A is turned on, so that the ceiling surface on the wall 12C side is illuminated with the color temperature CTL, and the brightness of the ceiling surface is gradually increased. In the first bedroom section 20A, after the lighting fixture 42A is turned on, the lighting fixtures 42B, 42C, and 42D are turned on in order to increase the output and increase the color temperature. Thereby, in the first bedroom portion 20A, the ceiling surface is gradually brightened from the wall portion 12C side toward the wall portion 12 side, and the color of the ceiling surface changes from orange (light bulb color) to white (day white). Is done.

  Such changes in the brightness and color temperature of the first bedroom portion 20A are the same as changes in brightness and color temperature due to natural light at sunrise. This gives the sleeper the same feeling of natural awakening at sunrise from the foot side before waking up. I felt that I was able to sleep comfortably.

  Also, the sleeping person wakes up because the sleep becomes shallower as the first bedroom portion 20A becomes brighter. At this time, when the sleeper is deeply asleep, the wake-up assist lighting control is performed in the long-time mode. As a result, the first bedroom portion 20A is brightened over time, and the sleeping person wakes up after shifting from a deep sleep state to a shallow state over time. In addition, when the sleeper is lightly asleep, wake-up assist lighting control is performed in the short-time mode. Therefore, since the lighting start time of the lighting fixture 42A is changed according to the sleeping state of the sleeping person, the sleeping person can wake up comfortably regardless of the sleeping state and feels that comfortable sleeping has been obtained. In addition, when the sleeper wakes up earlier than the wake-up time TS, the sleeper may feel lack of sleep. Awakening before the wake-up time TS is suppressed. Therefore, it is possible to prevent the sleeper from waking up before the wake-up time TS and causing a lack of sleep.

  On the other hand, after the wake-up assist lighting control is started in Step 106 or Step 110, Step 116 or Step 118 is executed until the wake-up time TS is reached (No determination in Step 112 or Step 114). In steps 116 and 118, the sleep state of the sleeper detected by the sleep sensor 46 is read to check whether the sleeper has awakened (step 120 or step 122).

  Here, when the sleeping person wakes up and an affirmative determination is made in step 120 or 122, the process proceeds to step 124. In this step 124, the lighting fixtures 42A to 42D are controlled so as to have the rated output and the color temperature CTH within a preset time (for example, a time set in the range of 10 to 30 seconds) (all lighting is on). control). By performing all lighting control, the first bedroom portion 20A becomes bright, so that it is possible to give a light stimulus to the awakened sleeper. Thereby, since it can suppress and awaken surely that a sleeping person will be depressed (depressed), a comfortable awakening feeling and sufficient sleeping feeling can be produced to the awakening sleeping person.

  In the present embodiment described above, the lighting fixtures 42A to 42D are sequentially turned on to gradually increase the output and gradually increase the color temperature. However, the brightness of the lighting fixtures 42A to 42D and The control of the color temperature is not limited to this. The lighting fixtures 42 </ b> A to 42 </ b> D only need to be controlled so as to be brighter from the side of the wall 12 </ b> C that is the bedside of the sleeping person, or to be controlled so that the color temperature is increased from the side of the wall 12 </ b> C.

  Here, in the present embodiment, when the lighting fixtures 42A to 42D are sequentially turned on and the respective outputs are gradually increased, the next lighting fixture 42B is turned on at the timing when the lighting fixture 42A reaches the rated output. However, it is not limited to this. For example, the time from when the lamp is lit until it reaches the rated output may be shorter than the previous lighting fixture 42 (eg, lighting fixture 42A), the next lighting fixture 42 (eg, lighting fixture 42B), It may be longer.

  Moreover, in this Embodiment, although the lighting fixtures 42A-42D were made to become a rated output in order, it is not restricted to this. For example, as illustrated in FIG. 6A, the lighting fixtures 42A to 42D may each reach the rated output at the same timing (FIG. 6A is the wake-up time TS).

  In the present embodiment, the lighting fixtures 42A to 42D are sequentially turned on, but the ceiling surface may be gradually brightened from the wall 12C side. For example, as shown in FIG. 6B, after the lighting fixtures 42A to 42D are turned on at the same timing, the rated output may be reached in the order of the lighting fixtures 42A, 42B, 42C, and 42D. In this case, since the output of the lighting fixture 42A on the wall portion 12C side is higher than the outputs of the lighting fixtures 42B to 42D on the wall portion 12A side, the ceiling surface is brightened from the wall portion 12C side, and the bright state is the wall portion. It is moved from the 12C side to the wall 12A side.

  On the other hand, in the present embodiment, the color temperature is changed similarly between the lighting fixtures 42A to 42D (see FIG. 4B), but the change in the color temperature is not limited to this. The color temperature may be different between the lighting fixtures 42A to 42D. In this case, the color temperature of the lighting fixture 42 on the wall 12C side between the lighting fixtures 42 (for example, the lighting fixtures 42A and 42B) adjacent to each other. Is higher than or equal to the color temperature of the lighting fixture on the wall 12A side. That is, the output change of the lighting fixtures 42A to 42D shown in FIGS. 4A, 4B, and 6B may be applied to the change in the color temperature of the lighting fixtures 42A to 42D. . As a result, the color temperature can be gradually increased while the color temperature on the wall 12C side is high between the wall 12C side and the wall 12A side.

  Moreover, the change of the output of lighting fixtures 42A-42D should just be that the brightness of a ceiling surface becomes high gradually toward the wall part 12A side from the wall part 12C side, and the change of the color temperature of lighting fixtures 42A-42D. May be changed uniformly or gradually increased from the wall 12C side. Therefore, the change in output and the change in color temperature in the lighting fixtures 42A to 42D may be different, but may be the same. For example, in each of the lighting fixtures 42A to 42D, the color temperature CTL is set at the time of lighting, the color temperature is increased in accordance with the increase in output, and the color temperature CTH is controlled at the rated output. May be. As a result, the color temperature increases from the side of the wall portion 12C on the foot side of the sleeping person together with the brightness, so that the sleeping person can wake up naturally while feeling to receive the rising sun rising from the foot side.

  In the above-described embodiment, the lighting fixtures 42A to 42D that are linear light sources are described as an example of the illumination light source. However, the illumination light source is not limited to this, and is a point light source such as a bulb shape. May be used.

  Further, in the present embodiment, the lighting fixtures 42A to 42D are described to be turned on in order. However, the present invention is not limited to this. For example, the lighting fixture 42A is turned on separately for the lighting fixture 42A and the lighting fixtures 42B to 42D. After that, the lighting fixtures 42B to 42D may be turned on simultaneously. That is, in this embodiment, four lighting fixtures 42A to 42D are arranged in a straight line, but two or more lighting fixtures 42 are used to illuminate the wall portion 12C side and the wall portion 12A side. It may be a configuration. Also, the lighting device on the foot side of the sleeping person and the lighting device on the head side may have different lighting ranges. In this case, the lighting range of the lighting device on the foot side is more than the lighting range of the lighting device on the head side. More preferably, it is narrow. Compared to the case where the illumination range of the foot-side luminaire is wider than the illumination range of the head-side luminaire, the brightness change before and after sunrise can be reproduced.

  Furthermore, in this Embodiment, although lighting fixtures 42A-42D were arranged in the falling ceiling 36 provided in the intermediate position of wall part 12B and wall part 12D, lighting fixtures 42A-42D are the wall parts 12B and 12D side. Alternatively, the lighting fixtures 42A and 42C may be provided on the falling ceiling 34, and the lighting fixtures 42B and 42D may be provided on the falling ceiling 36.

  Moreover, the lighting fixture 42 is arranged by forming a falling ceiling on the walls 12A and 12C, and when the sleeper wakes up, the lighting fixture 42 arranged on the falling ceiling on the wall 12C side is turned on first, and then the wall is placed. You may make it light the lighting fixture 42 arrange | positioned at the falling ceiling on the part 12A side.

  Furthermore, when the layout of the bedroom 10 is changed, the orientation of the bed 30 in the length direction and the orientation of the headboard 32 may change. In this case, there is provided means for setting the lighting order of the plurality of lighting fixtures when waking up so that the lighting order of the lighting fixtures can be changed in accordance with the body length direction and head orientation when the sleeping person goes to sleep. good. Thereby, according to the direction of the bed 30, the direction of the bedclothes for sleeping in a Japanese-style room etc., the lighting order (direction in which brightness and color temperature change) of a lighting fixture can be set appropriately.

10 Bedroom
12A-12D Wall 20A 1st bedroom (bedroom)
20B Second bedroom (bedroom)
30 (30A, 30B) Bed 36 (36A, 36B) Falling ceiling (indirect lighting means)
40 illuminating devices 42A-42D luminaire (illumination light source)
44 controller (control means)
46 Sleep sensor (sleep state detection means)
48 Alarm timer (setting method)

Claims (8)

A plurality of illumination light sources that can change the brightness and color temperature of each illumination light are linearly arranged in one direction along one wall surface of the bedroom, and the ceiling surface of the bedroom is illuminated by each of the illumination light sources. Lighting means;
Lighting and illumination of each of the illumination light sources so that at least one of the brightness of the ceiling surface and the color temperature of light applied to the ceiling surface gradually increases from one side of the one direction to the other side Control means for controlling the brightness of the light and the color temperature of the illumination light;
A lighting device comprising: A plurality of illumination light sources capable of changing the brightness and color temperature of each illumination light are linearly arranged in one direction along a wall surface and a bed of the bedroom, and the ceiling surface of the bedroom is illuminated by each of the illumination light sources. Indirect lighting means,
The illumination so that at least one of the brightness of the ceiling surface and the color temperature of light applied to the ceiling surface gradually increases from one side , which is the foot side of the bed in the one direction , toward the other side. Control means for controlling the lighting of each light source , the brightness of the illumination light and the color temperature of the illumination light;
A lighting device comprising:   The illumination device according to claim 1, wherein the control unit controls the brightness of illumination light to gradually increase from an illumination light source on one side in the one direction among the plurality of illumination light sources.   The controller is configured to control the plurality of illumination light sources so that the color temperature of the illumination light applied to the ceiling surface is gradually increased from the first color temperature to a second color temperature higher than the first color temperature. The lighting device according to claim 1, wherein each of the lighting devices is controlled. The bedroom is divided into a first bedroom and a second bedroom at an intermediate position in a direction crossing the one direction, the indirect lighting means is provided in each of the first bedroom and the second bedroom, and the control means The lighting device according to any one of claims 1 to 4, wherein lighting of the indirect lighting means in each of the first bedroom and the second bedroom is controlled . A sleep state detection means for detecting a sleep state of the sleeping person ;
Time setting means for setting the wake-up time;
Wherein the said control means, in response to the sleep state of the sleeper to be detected by the wake-up time and the sleep state detecting means, wherein claim 1, comprising starting the lighting of each of the plurality of illumination light sources Item 6. The lighting device according to any one of Item 5. When the sleep state detected by the sleep state detection unit is deep at the first time point earlier than the wake-up time , the control unit, after reaching the first time earlier than the wake-up time, Start lighting the illumination light source on one side in one direction ,
At the time of the previous SL first time, wherein when the light sleep state detected by the sleeping state detection means, after reaching the early second time than the rising time later than the first time, the one The lighting device according to claim 6 , wherein lighting of the illumination light source on one side in the direction is started. The control means starts the lighting of the one side illumination light source, and before the other side illumination light source reaches a predetermined brightness and a predetermined color temperature, the sleep state detection means causes the sleeper to wake up. The lighting device according to claim 6 or 7 , wherein, when detected, each of the plurality of illumination light sources is controlled to have a predetermined brightness and a predetermined color temperature.