JP2005228753A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system which has a correlation with the transition of light volume of the sun, can adjust biorhythm, and easily retain the degree of awakening. <P>SOLUTION: A light-receiving portion 1 generates a voltage signal having a correlation (proportion) with light volume of the sun. A comparison portion 7 of a power control portion 2 outputs a control signal of "H" when a reference voltage signal V0 is larger than a voltage signal from the light-receiving portion 1. A lighting device 4 sets lighting power (degree of light control) of a lighting load 5 in accordance with the width of the control signal. The lighting device 4 sets the lighting power supplied to the lighting load 5 in accordance with the width of the input control signal so that the luminance in a room to be illuminated changes in proportion to the change of the reception light volume (outdoor light) from the sun. Namely, when the reception light volume decreases and the width of the control signal becomes large, the lighting power is decreased to reduce the luminance, and on the contrary, when the reception light volume increases and the width of the control signal becomes small, the lighting power is increased to raise the luminance. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lighting system that controls lighting in a vehicle or indoors in correlation with outside light.

  There are the following four fields that require illumination conditions that have a correlation with external light.

  The first field is adjustment of biological rhythm (internal clock). It is known that the human body has a biological clock, and the natural period of the biological clock is about one hour longer than 24 hours a day. Therefore, for example, a human being placed in a dark room or under constant lighting and without a clue of time cannot adjust the time of the biological clock, and each time it follows the day compared to the time of the clock of the actual life The time of the body clock is getting behind. In order to adjust the body clock to 24 hours a day, it is necessary to adjust the clock so that the clock is advanced for about 1 hour a day. It is known that stimulation of light (especially bright light) is effective in correcting the time of the body clock. In normal life according to the natural environment, human beings adjust the time of the body clock mainly by the change of sunlight.

  By the way, it is known that various adjustments are made to the mind and body when the adjustment of the biological rhythm (internal clock) is not successful. As an easy-to-understand example that many people experience, a jet lag symptom can be given as an abnormality caused by the difference between the time of the body clock and the time of actual life. In addition, lack of light necessary to adjust the body clock may cause abnormal biological rhythms and develop seasonal emotional disorder (winter depression). There is also a theory that lack of light promotes weakening of biological rhythm due to aging, leading to sleep disorder and dementia symptoms of elderly people, day / night reversal abnormal behavior and nighttime habits. There are reports that children who are unable to wake up or go to school often have abnormal biological rhythms.

  In order to eliminate or prevent such a biological rhythm (internal clock) abnormality, it is known that a method using light (high illuminance light) is effective, and the eyeball is irradiated with light by wearing it on the human body. Devices have been developed that provide high-intensity light sources that illuminate the face by arranging lighting fixtures in a device or panel form. Examples of places that have low illuminance and constant conditions with respect to the illuminance environment include hospitals, nursing homes, underground shopping streets, etc. In these places, bright light is required to adjust the biological rhythm (internal clock), It is considered necessary to dimming a large number of people at the same time. Furthermore, when dimming for the purpose of biological rhythm adjustment in those places, it is considered effective to restore or maintain the natural rhythm if dimming that has a correlation with external light (sunlight). It is done.

  The second field is to maintain or improve the arousal level by daytime bright light. In general, it is known that when a light stimulus is received by a retina, secretion of a hormone called melatonin, which is said to induce sleepiness, is suppressed. It is also known that the activity of the sympathetic nervous system is enhanced by light stimulation, and as a result, the arousal level is improved. Such awakening maintenance effect by light tends to increase as the illuminance increases.

  In addition, it is known that even with bright light stimulation, the effect of maintaining wakefulness is higher when the illuminance change fluctuates than when the constant illuminance continues for a long time. In particular, it is more effective to reduce the change rate when the illuminance falls and increase the change rate when the illuminance rises.

  Now, it is known that the degree of awakening during the day is usually maintained at a higher level than at night, but changes with time even during the day and shows several peaks and valleys. Among them, the decrease in arousal level during the day is significant in the first half of the afternoon (corresponding to the time zone after lunch), but it is known that the arousal level changes regardless of whether or not lunch is taken. . Although the degree of change in arousal level varies from person to person, if the decrease in arousal level during the day is large, it is considered that taking a rest once during the trough time will increase the work efficiency thereafter. . Examples of such places where the use of the wakefulness maintenance effect by light is assumed include offices, factories, schools, and underground shopping areas.

  As a third field, a follow-up type device called “sunflower” is known as one that provides the same effect as sunshine in a living environment where sunshine is not taken in or tends to be insufficient. This device is intended to introduce sunlight into the living environment using an optical fiber.

  As the fourth field, the use of light related to lighting at windows in stores, offices and factories is known. In the case of store lighting, it is generally said that it is effective to brighten the lighting at the window in the store when the outside light becomes strong. This is because if the difference in illuminance between the outside world and the window increases, the store will feel dark. In order to avoid this adverse effect, a lot of lighting at the window is turned on when the outside is bright. Also, if the side of the room is a large amount of light in a room where a normal person is present, such as an office or factory, the brightness contrast between the person or object in the room and the background window surface is large and appropriate in the daytime, especially in fine weather. Can't keep up. In order to avoid such adverse effects, it is said that it is effective to make the ceiling lighting near the window brighter than the ceiling lighting at the center of the room when the outside is bright.

  Note that the illuminance measurement position is ideal for facial illuminance, but accurate measurement is difficult, so as a normal substitute characteristic, the height is 1.2 m from the floor (the position of the eyeball when sitting on a chair). Vertical surface illuminance was used. The illuminance that appears in the following description is also measured at this position. Note that the illuminance as a standard necessary for normal work or the like means horizontal illuminance on the desk surface (as a standard necessary for work or the like). In general, the relationship between both illuminances in a normal room is that the horizontal illuminance is about 1.5 times the vertical illuminance.

  By the way, the above four fields generally have a problem that there is no lighting system that is automatically dimmed and controlled so as to have a correlation with outside light.

  In other words, the existing lighting device that can be used in the first field is a small-sized one for personal use, and there is a problem that it is troublesome to attach / detach and control on / off. In addition, when trying to adjust the biological rhythm in places such as hospitals, nursing homes, underground malls, etc., where the illuminance environment is low and constant conditions are assumed, a large number of existing small devices are required and can be attached and detached. In addition, there is a problem that a lot of manpower is required for the on / off control and the like, which is not practical.

  Also, existing lighting devices that can be used in the second field have not yet been realized. In addition, the device called “Sunflower”, which is the prior art in the third field, has a very large facility, resulting in a large cost. However, there is a problem that the amount of light obtained by the optical fiber is less than that of general indoor lighting. there were.

  In the fourth field, there is a problem that dimming cannot be performed automatically in multiple stages because light is dimmed by manually changing the number and types of lighting at the window.

  Furthermore, in order to have practicality as indoor lighting, there is a problem of securing a minimum amount of power, and a problem of separately preparing a power source for securing a minimum amount of power regardless of external light. If the power is constantly controlled to the set level, power having a correlation with the external light cannot be obtained. Therefore, the selection between the state in which the power is controlled to the set level or the state having the correlation with the external light is switched as necessary. The problem of making it possible to divide lighting devices that receive power that has a correlation with outside light and lighting devices that receive power that is not related to outside light, It is possible to set the brightness required for room lighting to different levels depending on the time, such as making it possible to use the lighting it has, such as darkening during nighttime sleep and brightening during daytime activities There is so challenge of.

  If more practicality is required in such a lighting system, a rational system can be provided by reducing the equipment, so that it is not necessary to rely on commercial power using sunlight, or use sunlight. Then, the problem of saving commercial power consumption and making it a reasonable amount, and the power that has a correlation with the external light, for example, reacts as it is to the minute fluctuations of the external light such as clouds crossing the sun and changes. Because the brightness of indoor lighting frequently and greatly changes, it may not only interfere with indoor living but also adversely affect the eyes. There is a problem of preventing changes with a small time constant.

  Next, problems specific to each application field include the following.

  In the field of use for the first biological rhythm adjustment, there is a problem that the brightness changes sharply in the day and night, such that it is bright during the day and dark at night, and the change in illuminance does not suddenly change between day and night. There is a problem of using morning light with particular emphasis on illuminance changes that correlate with external light.

  In the second field of use that aims to maintain arousal with bright light, the problem is to make the illuminance fluctuate and increase the awakening maintenance effect more than just bright light, the speed of illuminance change from light to dark to dark The problem of speed reduction, the problem of preventing changes in illuminance from being regular and monotonous, the illuminance control being divided into basic lighting and task lighting, and appropriate control according to the individual condition by task lighting There are challenges.

  In the third field of use for the purpose of supplementing the living environment, which tends to be lacking in sunlight, there is a problem of incorporating as much light as possible into the room in lighting having a correlation with outside light.

  In the field of use aiming at illuminance correction in the fourth window-side illumination, illumination having a correlation with outside light is arranged at the window to correct the room illuminance, but it has a correlation with the outside light incident from the window. There is a problem of making it.

  The present invention has been made for the purpose of solving the above-described problems, and provides an illumination system that has a correlation with the transition of the amount of sunlight, can adjust the biological rhythm, and can easily maintain the arousal level. is there.

  In order to achieve the above object, in the invention of claim 1, an illumination load that performs indoor illumination, a light receiving unit that receives sunlight and outputs a signal correlated with the amount of light, and an output signal of the light receiving unit, A power control unit that sets the lighting power of the lighting load with correlation, a lighting device that lights the lighting load with the lighting power set by the power control unit, and the lighting power that is supplied to the lighting load via the lighting device It is characterized by having a lighting control means comprising a power supply unit to supply, and can obtain an illuminance that has a correlation with sunlight, so that the biological rhythm adjustment can restore natural rhythm or rhythm It is effective to perform in a form that maintains the degree of awakening and daytime.

  According to a second aspect of the invention, in the first aspect of the invention, a power level setting unit that sets a lower limit lighting power level in advance is provided, and the power control unit is a lighting power and power level setting unit corresponding to the output signal of the light receiving unit. Compared with the lighting power set in step 1, the lighting load of the lighting load is controlled so that it corresponds to the larger lighting power. The utility as lighting can be given.

  According to a third aspect of the present invention, in the first aspect of the present invention, the power control unit includes a standby power supply unit that supplies power regardless of the control of the power control unit, and a power level setting unit that sets a power level that is a lower limit in advance. The control unit controls to add the power of the standby power supply unit to the power supply of the power supply unit and supply it to the lighting load when the power supply of the power supply unit is lower than the lighting power of the level set by the power level setting unit By preparing a separate power source for securing the lighting power to obtain the minimum necessary illuminance regardless of outside light, the lighting power to obtain the minimum necessary illuminance can be obtained. It can be ensured to have practicality as interior lighting.

  According to a fourth aspect of the present invention, in the first aspect of the present invention, a standby power supply unit that supplies power regardless of the control of the power control unit and a power supply that supplies only the power supply unit to the lighting load or a power supply And a switch unit for selecting whether to supply the power obtained by adding the power of the standby power supply unit to the power of the unit. When the power supply unit power is low, the lighting power of the lighting load is set to a constant value. The necessary minimum illuminance can be secured, and when the power supply unit has sufficient power, the standby power supply unit can be disconnected to control lighting of the lighting load so that the illuminance has a correlation with external light. it can.

  According to a fifth aspect of the present invention, in the first aspect of the present invention, a standby power supply unit for supplying power regardless of the control of the power control unit and a constant illumination illumination load connected to the backup power supply unit are provided. It can be used selectively in parts that require lighting that has a correlation with outside light in the room, and at the same time, it ensures constant power in other parts to make it practical as indoor lighting. be able to.

  In the invention of claim 6, in the invention of claim 2 or 7, the power level value set by the power level setting unit is changed according to the time, so it is necessary for room lighting, such as darkening during nighttime sleeping and brightening during daytime activities. The brightness can be set to a different level depending on the time.

  According to a seventh aspect of the present invention, in any of the third to fifth aspects of the present invention, in the fifth to seventh aspects of the present invention, the light receiving unit and the power supply unit are configured by the same solar cell, and the standby power supply unit is used as a commercial power supply. It is characterized by comprising a power source and a rectifier, and not only can the equipment be reduced to provide a rational system, but also solar power can be used to save commercial power consumption and make it a reasonable amount.

  According to an eighth aspect of the present invention, in the first, fifth or sixth aspect of the present invention, the power supplied from the power supply unit or the output of the solar cell is smoothed by adding a low-frequency pass filter to supply the lighting load as the lighting power. Characterized and smoothed power can be supplied to the lighting device that is the load, the brightness of the room will not change with a small time constant, and the power correlated with outside light will be outside, such as when the clouds cross the sun There is no fear that the brightness of the indoor lighting will change frequently and greatly by reacting to the fine fluctuations of the light as it is, which will not only hinder the living in the room but also cause adverse effects on the eyes.

  In the invention of claim 9, in the invention of claim 6, in the power level setting unit, the value is set to be small at night and large at daytime, and the sunrise and sunset in fine weather are simulated in the morning transition period and the evening transition period, respectively. It is characterized by changing the power setting value over time so that it is bright in the daytime and dark in the nighttime so that the brightness changes sharply during the day and night, and the change in illuminance does not become abrupt when switching between day and night, The biological rhythm adjustment function can be improved.

  In the invention of claim 10, in the invention of claim 1 or 7, a light receiving surface movable part and a solar orientation determining means are added to the light receiving part or solar cell so that the light receiving surface of the light receiving part or solar cell is in the direction of the sun. It is characterized in that the light receiving surface movable part is controlled based on the determination output of the sun azimuth determining means to follow the sun, and the light receiving surface can be controlled to follow the direction of the sun, and the living environment tends to be short of sunshine When the purpose is to replenish the light, it is possible to incorporate as much light as possible into the room.

  The present invention can obtain an illuminance that has a correlation with sunlight, and is effective in performing biological rhythm adjustment in a form that restores the natural rhythm or in a form that maintains the rhythm and daytime arousal level. There is.

Embodiments of the present invention will be described below.
(Embodiment 1)
FIG. 1 shows this embodiment. This embodiment receives sunlight and outputs a signal having a correlation with the amount of light, for example, a light receiving unit 1 including a light receiving element such as a solar cell or CdS, and a light receiving unit. The power control unit 2 outputs a control signal for lighting the illumination load 5 with lighting power that is connected to the output signal of the light receiving unit 1 and correlates with the output signal of the light receiving unit 1, and illumination with lighting power corresponding to the control signal of the power control unit 2 The lighting device 6 is configured to continuously dimm the load 5 and the power supply unit 3 that supplies power to the lighting load 5 through the lighting device 4.

  The illumination load 5 uses a discharge lamp load such as a fluorescent lamp in the present embodiment (the same applies to other embodiments described below), and the lighting device 4 corresponding to this corresponds to the width of the control signal from the outside. An inverter device having a continuous dimming function for controlling lighting power (lamp current) by changing the oscillation frequency and changing the ballast impedance is used. When the incandescent lamp or the halogen lamp is an illumination load, a dimming device that controls the lighting power by phase control or the like according to the width of the control signal from the outside is used. Of course, a lighting device other than this type may be used. The power supply unit 3 uses a unit that supplies DC power to the lighting device 4 that is an inverter device.

  Next, the operation of this embodiment will be described in detail.

The light receiving unit 1 outputs a voltage signal having a correlation (proportionality) with the amount of sunlight, to the power control unit 2. The power control unit 2 includes a comparison unit 7 that compares a reference voltage signal having a triangular waveform with a predetermined frequency generated by the reference waveform generation unit 6 and a voltage signal from the light receiving unit 1, and the comparison unit 7 is shown in FIG. high to the "H" output when than the voltage signal V ₁ of the from the reference voltage signal V ₀ is the light receiving portion 1 of the reference waveform generating section 6 shown in) out as shown in FIG. 2 (b), when the opposite "L “Output. That is, a control signal having a small signal width is generated when the amount of received light of sunlight is increased, and a control signal “H” having a large signal width is generated and output to the lighting device 4.

The lighting device 4 illuminates the room to be illuminated (for example, the illuminance on the desk surface) in proportion to the change in the amount of light received from the sun (external light) shown in FIG. Is set to the lighting power supplied to the illumination load 5 so as to change as shown in FIG. In other words, when the amount of received light decreases and the width of the control signal increases, the lighting device 4 decreases the lighting power accordingly to reduce the light output of the illumination load 5 and reduce the illuminance in the illumination area. Conversely, when the amount of received light increases and the width of the control signal decreases, the lighting power is increased to increase the light output of the illumination load 5 and the illuminance in the illumination area is increased.
(Embodiment 2)
FIG. 4 shows this embodiment. In this embodiment, as shown in the figure, the light receiving unit 1 receives sunlight and outputs a signal having a correlation with the light amount, and the light receiving unit 1 connected to the light receiving unit 1. The power control unit 2 that outputs a control signal for lighting the lighting load 5 with lighting power having a correlation with the output signal, and the dimming lighting of the lighting load 5 with lighting power corresponding to the control signal of the power control unit 2 And a power supply unit 3 that supplies power to the lighting load 5 through the lighting device 4 and includes a power level setting unit 8 for setting a lower limit level of lighting power of the lighting load 5 in advance. Has been. In the present embodiment, the light receiving unit 1, the lighting device 4, the illumination load 5, and the power supply unit 3 have the same configurations as those in the first embodiment.

  Next, the operation of this embodiment will be described in detail.

The light receiving unit 1 generates a voltage signal having a correlation (proportionality) with the amount of sunlight as in the first embodiment. The power control unit 2 includes a comparison unit 7 that compares a reference voltage signal having a predetermined triangular waveform generated by the reference waveform generation unit 6 and a voltage signal from the light receiving unit 1, and the comparison unit 7 includes the reference waveform generation unit. comparator 7 when higher than the voltage signal V ₁ of the from the reference voltage V ₀ is the light receiving portion 1 of 6 "H" issues an output, put into the "L" output when the opposite (FIG. 2 (a) (b) reference). The control signal constituted by the “H” output is input to the AND circuit 9 together with the setting signal output from the power level setting unit 8, and the logical product is taken.

  The power level setting unit 8 includes a reference waveform generation unit 10, a setting unit 11 including, for example, a volume 12 and a reference voltage source 13 for setting a lower limit power level, and a comparison unit 14. Similar to the reference waveform generation unit 6 of the control unit 2, a reference voltage signal having a triangular waveform is output. The comparison unit 14 compares the reference voltage signal with the output voltage of the setting unit 11, and the reference waveform generation unit 10 reference voltage signal is obtained. When the output voltage of the setting unit 11 is exceeded, an “H” signal is output. It is assumed that the reference waveform generators 6 and 10 are synchronized and output a reference voltage signal having the same waveform.

  Therefore, when the width of the output signal of the comparison unit 7 is smaller than the width of the output signal of the comparison unit 14, the output signal of the comparison unit 7 is output to the lighting device 4 as a control signal, and the width of the output signal of the comparison unit 7 is When it becomes larger than the width of the output signal of the comparison unit 14, the output signal of the comparison unit 14 is output to the lighting device 4 as a control signal. That is, when the amount of light received by the light receiving unit 1 decreases and the width of the output signal of the comparison unit 7 becomes larger than the width of the output signal of the comparison unit 14, the width of the control signal is fixed to the width of the output signal of the comparison unit 14. . Therefore, the lower limit level of the lighting power is set by the width of the output signal of the comparison unit 14.

Thus, in the lighting device 4 of the present embodiment, the illuminance in the room that is the illumination target in proportion to the change in the amount of received light (external light) from the sun shown in FIG. 5A according to the width of the input control signal. For example, the lighting power supplied to the illumination load 5 is set so that the illuminance on the desk surface changes as shown in FIG. That is, when the amount of received light is small, the lighting power is reduced to lower the illuminance, and conversely, when the amount of received light is increased, the lighting power is increased to increase the illuminance. If the amount of light received by the light receiving unit 1 is below a certain level, the minimum required illuminance is secured by fixing the illuminance at a preset lower limit level.
(Embodiment 3)
Figure 6 shows the present embodiment, in the present embodiment as illustrated, as a power supply source for supplying lighting power to the lamp load 5 via the lighting device 4, the lighting via the backflow prevention diode D ₂ The output terminal is connected to the power input terminal of the lighting device 4 via the power supply unit 3 composed of a solar cell having the output terminal connected to the power input terminal of the device 4, the current limiting circuit 16, and the backflow prevention diode D ₁ . A standby power supply unit 15 including a commercial power source and a rectifier is used.

  Further, a power level setting unit 20 including a level adjuster 17 for inputting a voltage at the power input terminal of the lighting device 4, a reference waveform generation unit 18, and a comparison unit 19 is provided. The lighting device 4 receives the control signals from the power level setting unit 20 and the power control unit 2 and controls the lighting power of the lighting load 5 so that the lighting load 5 is dimmed.

  Similar to the first and second embodiments, the power control unit 2 receives the output of the light receiving unit 1 and outputs a control signal having a width correlated with the amount of sunlight. The internal configuration is omitted in FIG. ing.

  The reference waveform generator 18 of the power level setting unit 20 outputs a reference voltage having a triangular waveform similar to that of the reference waveform generator 6 of the power controller 2.

  Next, the operation of this embodiment will be described in detail.

  Thus, during operation of the system, power is supplied from the power supply unit 3 and the standby power supply unit 15 to the lighting device 4, but when the lighting power increases, the burden on the standby power supply unit 15 is also large. Become.

  Since the standby power supply unit 15 has an auxiliary role of the power control unit 2 and its power capacity is small and the lighting power of the lighting device 4 increases and the burden increases, the output current increases, but the current limit The circuit 16 receives the current limit. As a result, the load on the power supply unit 3 side increases, but the power that can be supplied by the power supply unit 3 is limited, so that the power that can be supplied by the power supply unit 3 and the standby power supply unit 15 can be supplied. When the lighting power is larger than the power combined with the power, the input voltage of the lighting device 4 that is a load is lowered due to an overload state.

  On the other hand, the power level setting unit 20 inputs the input voltage of the lighting device 4 to the level adjuster 17 to generate a voltage corresponding to the voltage level corresponding to the voltage, and this voltage and the reference voltage output from the reference waveform generating unit 18. And the comparison unit 19 outputs a control signal similar to that of the power control unit 2, and when the input voltage of the lighting device 4 decreases as described above, the control signal is accordingly accompanied. The width of becomes larger.

The control signal of the power level setting unit 20 is logically ORed with the control signal from the power control unit 2 by the OR circuit 48 and is input to the lighting device 4. Even when the width of the control signal output from the power control unit 2 increases and the input voltage of the lighting device 4 decreases due to an overload as described above, the width of the control signal of the power level setting unit 20 Becomes larger than the width of the control signal output from the power control unit 2, and the lighting device 4 operates in a direction to reduce the lighting power in response to the control signal. That is, the lighting power is controlled so that the lighting load 5 is turned on with the lighting power corresponding to the maximum power that can be supplied by the power supply unit 3 and the standby power supply unit 15 at present.
(Embodiment 4)
FIG. 7 shows the present embodiment. In the present embodiment, as shown in the drawing, the light receiving unit 1 receives sunlight and outputs a signal having a correlation with the amount of light, and the light receiving unit 1 connected to the light receiving unit 1. The power control unit 2 that outputs a control signal for lighting the lighting load 5 with lighting power having a correlation with the output signal, and dimming that lights the lighting load 5 with lighting power according to the control signal of the power control unit 2 A lighting device 4 such as a lighting device and a power supply unit 3 that supplies power to the lighting load 5 through the lighting device 4 and a standby power supply unit 15 are provided, and the output of the backup power supply unit 15 is prevented from backflow the power input terminal of the use diode D ₁ and a lighting device 4 via the switch SW _1, also is connected to the power input terminal of the lighting device 4 via the reverse-blocking diode D ₂ the output of the power supply unit 3 .

Here, the configuration of the light receiving unit 1, the lighting device 4, the illumination load 5, and the power supply unit 3 is based on the first embodiment, and the configuration of the standby power supply unit 15 is based on the third embodiment. The power control unit 2 be connected to one output terminal of the comparator 7 in the second contact one of the fixed contact a of the switch SW _2, the movable contact of the changeover switch SW ₂ is connected to the fixed contact a, comparator unit 7 the control signal output of the input to the signal input terminal of the lighting device 4, the movable contact of the changeover switch SW ₂ is connected to the fixed contact b, the control signal output of the comparator 7 is output to the lighting device 4 The signal input terminal of the lighting device 4 is connected to the ground.

It intended to interlock the switch SW ₁ and the changeover switch SW _2, when the switch SW ₁ is on the movable contact of the changeover switch SW ₂ is connected to the fixed contact b, if the changeover switch SW of the switch SW ₁ is turned off _{The two} movable contacts are connected to the fixed contact a side.

  Next, the operation of this embodiment will be described in detail.

First, when the switch SW ₁ is turned off, the output terminal of the power control unit 2 is connected to the signal input terminal of the lighting device 4. In this case, the circuit configuration is the same as that of the first embodiment, and the same operation is performed. Since the operation in this case is the same as that of the first embodiment, the description is omitted.

Then, when the switch SW ₁ is turned on, the movable contact of the switch SW ₂ linked to is connected to the fixed contact b, the signal input terminal of the for the lighting device 4 becomes "L" level. That is, the width of the control signal becomes zero, and the lighting device 4 turns on the illumination load 5 completely. In this case, the power is supplied from the power supply unit 3 and the standby power supply unit 15, and sufficient power is supplied to turn on the lighting load 5 completely.

In other words, according to the present embodiment, an illumination system having a correlation with the external light can be realized by turning off the switch SW _1, also the mode of independently full lighting external light by turning on the switch SW ₁ user Selectable systems can be configured.

In addition, a solar cell may be used as the light receiving unit 1 and the power supply unit 3 of the present embodiment, and a power supply circuit including a commercial power source and a rectifier may be used as the standby power supply unit 15. Of course, it is not limited to this configuration.
(Embodiment 5)
FIG. 8 shows the present embodiment, which is added to the system of the first embodiment, and the standby power supply unit 15, the constant illuminance lighting device 47, and the illumination load that is lit by the constant illuminance lighting device 47. A system composed of 5 'is provided, and the illumination system of the present invention is constructed by these two systems.

  Next, the operation of this embodiment will be described in detail.

  First, the same part (in the frame X) as that of the first embodiment in FIG. In the system in the frame Y, the constant illuminance lighting device 47 supplies the lighting power to the lighting load 5 ′ so that the illuminance in the illumination area becomes constant by the power from the standby power supply unit 15.

  Therefore, in this embodiment, the illuminance correlated with the amount of sunlight obtained by the system of the frame X is superimposed on the basis of the constant illuminance due to the lighting of the illumination load 5 ′ of the frame Y. Further, the arrangement of the illumination load 5 that is lit by the lighting device 4 of the system in the frame X and the illumination load 5 ′ that is lit by the constant illuminance lighting device 47 in the frame Y can be divided. If the illumination load 5 ′ is arranged on the entire surface of the ceiling, the illuminance correlated with the amount of sunlight is superimposed near the window and the room illuminance correction can be performed.

In addition, it is good to use a solar cell as the light-receiving part 1 and the electric power supply part 3 of this embodiment, and to use the power supply circuit which consists of a commercial power source and a rectifier as the backup power supply part 15. Of course, it is not limited to this configuration.
(Embodiment 6)
FIG. 9 shows the present embodiment. This embodiment receives sunlight as in the second embodiment, and outputs a signal having a correlation with the amount of light, and the light receiving unit 1 connected to the light receiving unit 1. The power control unit 2 that outputs a control signal for lighting the lighting load 5 with lighting power having a correlation with the output signal, and dimming that lights the lighting load 5 with lighting power according to the control signal of the power control unit 2 A power level setting for setting in advance a lower limit level of lighting power of the lighting load 5, including a lighting device 4 such as a lighting device and a power supply unit 3 that supplies power to the lighting load 5 through the lighting device 4. However, the setting unit 9 of the power level unit 6 of the present embodiment is different from that of the second embodiment in that the setting unit 9 includes a timer 22, a ROM 23, and a D / A conversion unit 24. .

  For example, data of a preset power level for one day is written in the ROM 23 of the setting unit 6, and the timer 22 outputs read address data of the ROM 23 according to the time as time elapses. That is, power level data corresponding to the passage of time is read from the ROM 23 every moment, converted into an analog voltage signal by the D / A converter 24 connected to the output terminal of the ROM 23, and input to the comparator 14. .

  Next, the operation of this embodiment will be described in detail.

  First, the timer 22 outputs the current time in the form of address data in the ROM 23, and the ROM 23 outputs the power level data stored at the designated address. The D / A conversion unit 24 outputs the power level data as an analog voltage signal, and the output voltage signal is compared with the reference voltage signal of the reference waveform generation unit 10 by the comparison unit 14. A signal having a width corresponding to a period in which the reference voltage signal exceeds the voltage signal from the A converter 24 is output. While the width of this signal is larger than the width of the control signal output from the comparison unit 7 of the power control unit 2, the control signal of the comparison unit 7 is given to the lighting device 4 via the AND circuit 9, and the signal of the comparison unit 14 Is smaller than the width of the control signal output from the comparison unit 7 of the power control unit 2, the signal of the comparison unit 14 is given as a control signal to the lighting device 4 via the AND circuit 9.

  That is, in this embodiment, the lower limit level of illuminance can be set according to the time according to the power level written in the ROM 23 in advance, and based on the power level data from the ROM 23 in the daytime of cloudy or rainy days when the received light amount of sunlight is small. The lighting power of the illumination load 5 can be controlled to ensure a predetermined illuminance. It is preferable that the power level data written in the ROM 23 be a small value at night and a large value during the day, and a value that simulates sunrise and sunset in fine weather in the morning transition period and evening transition period, respectively. An illuminance pattern is obtained. A particularly desirable pattern is that the brightness is maximized in the morning, and it is convenient if room illuminance in the range of 1000 to 5000 lx is obtained.

  Moreover, although the seasonal difference of the sunrise time becomes large when the latitude is high, it is considered that it is not preferable for the biological rhythm adjustment when the sunrise is extremely late in winter. In such a case, if a standard illuminance change pattern is set in spring or autumn, the illuminance pattern preferable for biological rhythm adjustment can be obtained by correcting the seasonal difference in sunrise time.

  FIG. 10 is a graph showing an example of the power data written in the ROM 23 in time series.

  As another example (not shown), the setting value for the first half of the morning is particularly high (1000 to 5000 lx), and the setting value for the daytime after that is set to normal room brightness (for example, about 500 lx). You can also.

D / A conversion is performed on the power level data output from the ROM 23 and the timer 22 that outputs the ROM address in which the data of the preset power level of the day used in the sixth embodiment is written as time data. If the configuration of the D / A converter 24 is added to the current limiting circuit 16 in the third embodiment and the threshold of the current limiting circuit 16 is controlled by the output of the D / A converter 24, the lower limit or the power to be set An illumination system that changes the level according to time can be realized.
(Embodiment 7)
FIG. 11 shows an embodiment of the present invention. As shown in the figure, this embodiment is a combination of a power supply unit and a light receiving unit 1 ′ composed of a solar cell that receives sunlight. The configurations of the lighting device 4 and the illumination load 5 are the same as those in the first embodiment.

  Next, the operation of this embodiment will be described in detail.

  When the output power of the light receiving unit 1 ′ composed of solar cells is smaller than the lighting power supplied from the lighting device 4 to the illumination load 5, the output voltage of the light receiving unit 1 ′ composed of solar cells decreases. The power control unit 2 compares the output voltage with the reference voltage of the reference voltage waveform generation unit 15 in accordance with the amount of light received by the light receiving unit 1 ′, and has a width corresponding to the output power of the solar cell constituting the light receiving unit 1 ′. A control signal is output to the lighting device 4.

As a result, the lighting power to the illumination load 5 controlled by the lighting device 4 is small when the amount of received light is low when the output voltage of the solar cell of the light receiving unit 1 ′ which also serves as the power supply unit decreases, and conversely the light receiving unit 1 ′. It is possible to realize an illumination system having a correlation with the amount of received light of sunlight that increases when the amount of received light increases when the output voltage increases.
(Embodiment 8)
FIG. 12 shows this embodiment. As shown in the figure, this embodiment uses a low-frequency pass filter (for example, a filter made up of an inductor, a capacitor, and the like) at the output of the light receiving unit 1 ′ that also serves as the power supply unit of the seventh embodiment. ) 21, and the power control unit 2, the lighting device 4, and the lighting load 5 have the same configuration as that of the seventh embodiment.

  Thus, in this embodiment, by providing the low-frequency pass filter 21 at the output stage of the light receiving unit 1 ′ composed of a solar cell, smooth fluctuations in the output voltage of the solar cell caused by a cloud blocking the sun, etc. Thus, it can be prevented from being transmitted to the power control unit 2 and the lighting device 4. That is, according to the present embodiment, it is possible to realize an illumination system that has a correlation with external light and that copes with a temporary change in the amount of received light by slowing the response.

  Since the operation of the other configuration is the same as that of the seventh embodiment, description thereof is omitted.

  By the way, the direction of the light-receiving surface of the light-receiving unit 1 in the first to sixth embodiments or the light-receiving surface of the light-receiving unit 1 ′ formed of the solar cell in the seventh and eighth embodiments is not particularly referred to in the description of each embodiment. However, the light receiving surface may be installed so as to face the sunrise direction. In a simple example, the light receiving surface may be set in the east direction. If the difference in sunrise azimuth is significant depending on the season, the direction of the light receiving surface may be controlled so as to match the sunrise azimuth predicted by the calendar.

  FIG. 13 shows an example in which the room illuminance thus obtained is graphed in time series. Desirably, if the indoor illuminance maximum value is 1000 to 5000 lx, it is convenient for biological rhythm adjustment. In addition, the vertical axis | shaft of FIG. 13 shows the ratio of lighting electric power when the lighting electric power at the time of all lighting is set to 100%.

In the ninth embodiment, means for automatically following the light receiving surface of the light receiving unit 1 to the sun is provided.
(Embodiment 9)
FIG. 14 shows the present embodiment. This embodiment basically has the same configuration as that of the first embodiment, and in this basic configuration, the light receiving unit 1 has a light receiving surface facing the direction of the sun. 1 includes a light receiving surface movable unit 25 that includes a motor for moving 1 and a control unit that controls rotation of the motor, and a sun direction determination unit 26 that provides a control signal to the light receiving surface movable unit 25.

  Next, the operation of this embodiment will be described in detail.

  First, the output voltage of the light receiving unit 1 is input to the non-inverting input terminal of the differential amplification unit 27 in the solar orientation determination unit 26 and also input to the sample hold circuit 28. The sample hold circuit 28 holds the output voltage of the light receiving unit 1, and its output is input to the inverting input terminal of the differential amplifier 27. The output of the differential amplifying unit 27 outputs the current output voltage of the light receiving unit 1 and the output voltage difference of the light receiving unit 1 previously sampled and held. The light receiving surface movable unit 25 has the maximum output voltage difference. Drive the motor to the position. That is, the light-receiving surface of the light-receiving unit 1 can follow the direction of the sun until the light-receiving surface of the light-receiving unit 1 faces the sun.

In addition, since the operation | movement of structures other than a sun following is the same as Embodiment 1, description is abbreviate | omitted. Further, since known means may be used as the movable mechanism of the light receiving unit 1, illustration and description of the structure are omitted here.
(Embodiment 10)
FIG. 15 shows this embodiment, and this embodiment is characterized in that the light receiving unit 1 is provided indoors and its light receiving surface is directed toward the daylighting window 30 provided in the building 29 as shown in the figure. That is, if the light receiving surface of the light receiving unit 1 faces in a different direction from the lighting window 30, there is no correlation with the illuminance near the lighting window 30, so the light receiving surface of the light receiving unit 1 is lighted as in this embodiment. By directing in the direction of the window 30, an illumination system having a correlation with the illuminance near the daylighting window 30 can be realized.

The other configuration is the same as that of the first embodiment, and the operation thereof is also the same as that of the first embodiment, so that the description thereof is omitted.
(Embodiment 11)
FIG. 16 shows the present embodiment, and this embodiment comprises a power supply unit 3, a lighting device 4, a lighting load 5, and a power control unit 31, as shown in the figure. Part 31 is characterized. The power supply unit 3, the lighting device 4, and the illumination load 5 have the same configuration as that of the first embodiment.

  In other words, the power control unit 31 takes in the calendar timer 32 that measures the current date, the timer 33 that measures the current time, the dimming data time series database 34, and the current date and time data from the calendar timer 32 and the timer 33. The dimming data for reading out the external light data corresponding to the date and time data from the dimming data time-series database 34 and creating the dimming data to be given to the lighting device 4 so as to obtain a correlated illuminance from the external light data It is comprised from the calculating part 35 and the light control data output part 36 which outputs the control signal of the width | variety corresponding to the control data given from the light control data calculating part 35 to the lighting device 4.

  Here, the dimming data time-series database 34 is a data table describing what brightness of the outside light (sunlight) is based on the known measurement data, etc. It consists of a data table describing the ambient light data at the sunrise and sunset times for each day and the pattern data of the average brightness change of the average ambient light from sunrise to sunset, and the dimming data calculator 35 is the former case Is used as it is, and in the latter case, the external light data at the current time is obtained by reading both data and performing an operation (multiplication) based on both data.

  Thus, in this embodiment, the power control unit 31 generates a control signal for dimming at that time based on the external light data at the current time obtained from the dimming data time-series database 34, and the lighting device 4 is given.

  In this case, the dimming data calculation unit 35 creates control data so that a lighting control pattern is obtained in which the illuminance is higher than the average illuminance in the morning or afternoon during a predetermined period at least after noon.

  Here, various lighting control patterns are conceivable. In the present embodiment, the following lighting control patterns are employed according to the purpose.

  That is, as a lighting control pattern, as shown in FIG. 17A, a basic pattern corresponding to a natural light change that linearly increases illuminance from sunrise to noon and linearly decreases illuminance from noon to sunset, as shown in FIG. Further, as shown in FIG. 17B, the illuminance is set to a constant illuminance higher than the average illuminance in the morning or afternoon during a predetermined period after noon, and a pattern aimed at maintaining and improving the arousal level by bright light in the daytime, and FIG. As shown in FIG. 17 (c), the pattern is set so that the illuminance is constant after sunset based on the pattern of FIG. 17 (b) so as not to hinder the actual work after sunset, and further shown in FIG. 17 (d). As shown in FIG. 17 (e), a break period in which the illuminance is lowered is set based on the pattern of FIG. like Changed to a logarithmic change of linear change based on a pattern of 17 (c), there is a pattern close to more natural light changes.

  Further, as shown in FIG. 18 (a), the illuminance is lowered at a constant speed from around noon to a predetermined time before sunset, and then the predetermined illuminance is maintained, and the morning light adjusts the biological rhythm and maintains daytime awakening. 18 (b), and the pattern of FIG. 18 (a) is used to increase the morning illuminance increase rate and decrease the afternoon illuminance decrease rate. A pattern aiming at the effect of (a) and facilitating the maintenance of arousal, and also maintaining the arousal by giving fluctuation of the illuminance during a certain illuminance period of the pattern of FIG. 18 (b) as shown in FIG. 18 (c). As shown in FIG. 18 (d), there are patterns that make it easier to perform, and there are patterns that gradually increase the descent speed in the fluctuation portion of FIG. 18 (c) to make the increase in arousal level more effective. . In this case, as shown in FIG. 18 (e), the fluctuation portion is more random and more effective in maintaining the arousal level because of less adaptation.

  In the case of workplace lighting, there are patterns shown in FIG. 19A to FIG. 19D starting from the start time. In this case, FIG. 19A is a pattern in which the morning is kept constant at a high illuminance and the illuminance is changed in proportion to the outside light in the afternoon, FIG. A pattern in which a rest period is set, and FIGS. 19C and 19D are patterns modeled on the patterns of FIGS. 17A and 18A.

  Thus, according to the present embodiment, it is possible to set an arbitrary lighting control pattern without actually receiving sunlight, and a pattern suitable for a place to be illuminated and a pattern taking into account a biological rhythm are realized. can do.

  If the daylight hours are different between summer and winter, it is not always good to reproduce the change of natural light faithfully. Therefore, for example, the output width of the calendar timer 33 of the power control unit 31 may be halved, and the date change until the summer solstice or the winter solstice may be halved centering on the spring and autumn equinox.

  Alternatively, sunrise and sunset time data in the dimming data time series database 34 may be output in units of two days.

Furthermore, a lighting user's favorite season may be set and a lighting control pattern corresponding to an illuminance change corresponding to the season may be output.
Embodiment 12
FIG. 20 shows this embodiment. In this embodiment, the lighting power of the basic lighting load 5a attached to the ceiling or the like through the lighting device 4 is controlled by the control signal of the power control unit 31 used in the embodiment 11 as shown in the figure. In addition to the control configuration, the lighting power of the task lighting load 5b such as a personal desk stand, personal spotlight, down ride, etc. is controlled through the lighting device 40 by the control signal of the power control unit 39. Here, the lighting device 40 has the same configuration as the lighting device 4, and controls the lighting power of the lighting load 5 b according to the width of the control signal output from the power control unit 39 to illuminate the illumination area of the task lighting load 5 b. The lighting power is supplied from the power supply unit 3 via the on / off control unit 38. The on / off control unit 38 may or may not be required to turn on / off task lighting based on a selection signal from the task lighting on / off manual selection unit 37 or a detection output from the seating status detection unit 41 that detects the seating status of a desk or the like. Is turned on / off by the discrimination signal of the discriminating unit 42 for discriminating, and the power from the power supply unit 3 is supplied to the lighting device 40 at the time of on and is shut off at the time of off. The switch SW ₀ is a switch for selecting a signal to be connected to the on / off control unit 38 from the selection signal of the task illumination on / off manual selection unit 37 and the determination signal of the determination unit 42.

  The power control unit 39 includes a dimming data calculation output unit 46 in which the dimming data calculation unit and the dimming data output unit in the power control unit 31 are integrated, and a database storing lighting control patterns for maintaining arousal level. 45, an input unit 43 for selecting personal information that uses task lighting, a personal pattern selection, and a timer 44 that measures the current time. A dimming data calculation output unit 46 includes current time data from the timer 44. The corresponding dimming data is read from the database 45 based on the above, and a control signal having a predetermined dimming level is generated and output from this data based on the personal information and the contents of the personal pattern selection.

  In addition, since the power control part 31 of this embodiment is the same as the power control part 31 of Embodiment 11, description about a structure and operation | movement is abbreviate | omitted.

  Thus, in the case of this embodiment, the illuminance control of the basic lighting load 5a of the entire room is performed by a control signal from the power control unit 31 as in the case of the eleventh embodiment. The illuminance control of the lighting load 5b can be performed on the control signal output from the power control unit 39 in a lighting control pattern that can maintain the awakening level.

  In this embodiment, as shown in FIG. 21 (a), the basic illumination load 5a is used to obtain a basic illumination intensity that maintains a constant illuminance from sunrise to sunset and is kept constant at a lower illuminance from sunset. As shown in FIG. 21 (b), the lighting power of 5b is controlled so as to obtain an illuminance correlated with a change in external light (sunlight), thereby performing illumination with an illuminance change correlated with the external light. be able to. In this case, illumination with an illuminance change correlated with a change in external light can be performed for each individual, and the illuminance by the basic illumination load 5a can be reduced, so that power consumption can be reduced.

  Further, as shown in FIG. 21 (c), the illumination by the basic illumination load 5a is obtained so that the illuminance change is obtained from the sunrise to the sunset in the pattern of FIG. 17 (d), and the lighting power of the task illumination load 5b is controlled. As shown in FIG. 21 (d), control that gives fluctuation is also possible in this embodiment. 21B (corresponding to FIG. 17B) and illuminance change of the basic illumination load and FIG. 21D can be controlled. The basic illumination can roughly change the illuminance of the day. It is possible to superimpose a wakefulness maintenance pattern with task lighting.

The illumination loads shown in the first to tenth embodiments and the eleventh and twelfth embodiments may be a plurality of lamps or a single lamp. In a plurality of cases, a multi-lamp lighting device is used as a lighting device. Is used. Further, when a plurality of lighting devices are provided, the power control unit and the power output unit may be shared.
(Embodiment 13)
In the present embodiment, the work place of the worker who is the lighting user is fixed, for example, the office (office), the work place fixed in the factory, the monitoring direction and the monitoring place are fixed. A lighting system suitable for a room or the like.

  FIG. 22 shows the configuration of the present embodiment, and the lighting system of the present embodiment includes a general lighting fixture 49 and a general lighting device provided with a light source serving as a basic lighting load that is installed in order to ensure the necessary minimum illuminance. A lighting device 52 for the lighting fixture 49 and a light source as a task illumination load that irradiates the illumination user M's field of view with one or more installed as necessary to give the illumination user M the required illuminance. Local lighting fixtures 50a, such as downlights, spotlights, etc., lighting devices 51a having a dimming function corresponding to the local lighting fixtures 50a, and light intensity changes to be described later. A control unit 54 that provides control data for dimming control to each lighting device 51a, a light amount change information generation unit 56 that generates light amount change information for generating control data by the control unit 54, and a power source Made from the power supply unit 55., it is disposed on the ceiling portion 53, including the luminaire 49 and 50a ....

  FIG. 23 shows a circuit configuration of the present embodiment. The light quantity change information generation unit 56 calls the dimming data from the dimming data time-series database in the same manner as in the eleventh embodiment based on the time measured by the timer or calendar timer. It has a function to generate light quantity change information or to generate light quantity change information based on detection information of a sensor that detects the brightness of outside light, and the light quantity corresponding to the change of the light quantity of sunlight The change information is given to the control unit 54. The control unit 54 creates dimming data based on the light quantity change information from the light quantity change information generation unit 56 as control data and gives it to the lighting devices 51a. Yes. The dimming data created in this case changes the illuminance of the illumination area irradiated by the local lighting fixtures 50a to correspond to the change in the amount of sunlight from sunrise to sunset, and at least after noon. It is set to control the local lighting fixture 50a... The local illumination light source La so that the illuminance is higher than the average illuminance in the morning or afternoon during the predetermined period.

  Moreover, the control part 54 supplies the electric power from the electric power supply part 55 which is a power supply to each local lighting fixture 50a ... via each lighting device 51a .... The power source corresponding to the general lighting device 49 is supplied from another power supply unit (not shown). Of course, the power supply unit 55 may be shared.

  The lighting devices 51a ... control the lighting power to the light sources La ... of the local lighting fixtures 50a ... based on the control data from the control unit 54 to adjust the light, and the local lighting switches SWa ... It is turned on / off by operation.

  Thus, in this embodiment, when the lighting user M who is an operator needs to illuminate the desk 57 or the like with the lowest illuminance, the general illuminator 49 alone illuminates and the illuminance higher than that is illuminated. When the user M needs, by turning on the local illumination switch SWa provided in the corresponding local illumination device 50a, the general illumination device can illuminate the local illumination device 50a such as a downlight or a spotlight. In addition to the illumination of 49, the illuminance by the local lighting device 50a ... is controlled by the control unit 54, so that the illuminance in the illumination area (in the field of view of the lighting user M) by the local lighting device 50a ... is set to the required illuminance. can do. Here, the illuminance is changed so as to correspond to the change in the amount of sunlight from sunrise to sunset, and the illuminance is higher than the average illuminance in the morning or afternoon at least during a predetermined period after noon. By changing in this way, the illumination according to the biological rhythm of the illumination user M is performed as in the above embodiments.

  In the configuration shown in FIG. 22, the local lighting fixtures 50a are arranged on the ceiling 53. However, they may be installed in a partition 59 that partitions opposing desks 57, 57 as shown in FIG. However, in this case, the local lighting fixtures 50a ... are attached with a light diffusing panel 58 on the front surface of the light source La ... so that they do not cause unpleasant glare when viewed directly. Since the role of the circuit configuration and the general lighting fixture 49 in the example of FIG. 24 is the same as described above, the same numbers and symbols are assigned to the components having the same roles as the components of FIGS. Omitted. The power supply unit 55 as a power source is provided corresponding to the lighting device 52 for general illumination and the lighting devices 51a and 51b for local illumination.

  Further, the local lighting fixtures 50a... Are arranged on the ceiling 53 or the partition 59. However, as shown in FIGS. 25 to 27, the local lighting fixtures 50 are stand-type fixtures placed on the desk 57. May be configured. Also in this case, the brightness (illuminance) in the field of view of the illumination user M is changed so as to correspond to the change in the amount of sunlight from sunrise to sunset as described above, and at least a predetermined period after noon. Of course, the dimming control is performed on the local lighting device 50 so that the illuminance is higher than the average illuminance in the morning or afternoon, and the examples in FIGS. 22 (FIG. 23) and FIG. 24 in terms of circuit configuration. Is the same.

  However, in this case, a transmission diffusion type panel 58 'is attached to the front surface of the light source L as shown in FIG. In FIG. 26, 60 is a housing of the instrument, and 61 is a reflector.

  Further, as the local lighting device 50, a lighting device having a function switching configuration so that it can be used for a normal stand as shown in FIGS. 28 (a) to 28 (c) and FIG. 29 (d) may be used.

  In the illustrated lighting fixture, a diffused panel 58 is attached to the front opening, and a box-like stand unit housing 101 in which a reflecting plate 100 and a light source L are housed is provided on both sides of the front and lower ends of the support base 102. The stand housing 101 and the support base 102 are housed in a housing recess 103 having an open front and top surface formed in the partition 59 described above. It is. Here, guide protrusions 104 formed at the upper and lower positions of the rear portions on both side surfaces of the stand housing 101 and guide protrusions 105 provided on both side surfaces of the support base 102 on the same line as the both protrusions 104 are stored in the storage recess 103. The upper and lower guide recesses 106 provided at the rear portions of the inner wall surfaces of the both sides are fitted in a vertically movable manner, and the guide protrusions 107 provided at the front portions on both side surfaces of the support base 102 are accommodated so as to be parallel to the guide recesses 106. 103 is fitted into guide recesses 108 provided in front portions of the inner wall surfaces on both sides so as to be movable up and down.

  Thus, when a lighting fixture is used as the local lighting fixture 50 in the lighting system of the present invention, as shown in FIG. 29 (a), guide protrusions on both side surfaces of the support base 102 are provided at the lower end positions of the guide recesses 106 and 108. 104, 107, and 108, the stand housing 101 is housed in the housing recess 103, and the stand housing 101 is placed on the support base 102. In this case, the light emitted from the light source L irradiates the front of the partition 59 through the panel 58.

  Next, when used as normal stand illumination, the guide projections 104 and 104 are pulled out upward from the upper end opening of the guide recess 106 from the state shown in FIG. Is moved to a position where it collides with the upper end of the guide recess 108 (FIG. 29B). From this state, the stand casing 101 is rotated counterclockwise in the figure about the pivot 109 to bring the stand casing 101 forward as shown in FIG. Here, in FIG. 29C, the front surface of the lower end of the stand housing 101 that is the lower surface of the rear end has an upper surface that is flush with the upper surface of the support base 102 and protrudes forward from the front opening of the housing recess 103. It is mounted on and supported by the support stand 110.

In this state, if the stand housing 101 is moved downward to the lower end position of the guide recesses 106 and 108 by the guide protrusions 105 and 107 of the support base 102, the stand is configured so that the illumination direction is downward (desk surface direction). Will do.
(Embodiment 14)
This embodiment is a system in which a human sensor 62a composed of a heat ray sensor or the like that can recognize the presence of the illumination user M as shown in FIG. 30 is added to the system configuration of FIG. When the lighting user M is present in the room and the working place of the lighting user M is fixed, the lighting user M often does not use the place. It is designed to be suitable for workplaces and offices (offices) with different timing.

  FIG. 31 shows the circuit configuration of the present embodiment, and the human sensor unit 62a comprising a heat ray sensor detects that there is a lighting user M in the vicinity of the field of view that the local lighting fixtures 50a are irradiating. Then, the detected signal is sent to the lighting device 51a (or control unit 54) of the corresponding local lighting fixture 50a, and the lighting device 51a (or control unit 54) receiving the signal receives the corresponding local lighting fixture 50a. Dimming control operation is performed for. That is, when a detection signal is sent to the lighting devices 51a ..., the control data from the control unit 54 is validated, and the lighting devices 51a ... perform light control based on the control data. When a detection signal is sent to the control unit 54, the control unit 54 sends control data to the corresponding lighting device 51a, and the lighting device 51a that receives the control data responds to the corresponding local lighting device 50a. To perform dimming control.

  In FIG. 30 and FIG. 31, components having the same configuration and the same operation as those in FIG. 22 and FIG. In addition, the power supply unit which is a power source corresponding to the general lighting device 49 and the lighting device 52 is not particularly shown and is omitted.

  Thus, in the dimming control of this embodiment, as in the thirteenth embodiment, the brightness (illuminance) in the field of view of the illumination user M is changed as described above with respect to the change in the amount of sunlight from sunrise to sunset. The light intensity is controlled so that the illumination intensity is higher than the average illumination intensity in the morning or afternoon at least for a predetermined period after noon, and illumination that matches the biological rhythm of the illumination user M is performed. .

Moreover, according to this embodiment, it can illuminate with the local lighting fixture 50a ... only within the visual field of the illumination user M who is working.
(Embodiment 15)
In this embodiment, as shown in FIGS. 32 and 33, a human sensor 62a that can recognize the presence of the illumination user M is added to each local lighting device 50a, and the human sensor 62a is detected. System with local lighting fixtures 50a ... that can change the direction of irradiation based on the signal. Work where the work place of the lighting user M is not fixed. Ideal for offices, offices that change the layout of conference rooms and desks frequently. It is suitable for a room (office). In FIG. 32, only one local lighting device 50a is shown.

  The human sensor 62a used in this embodiment is composed of an image processing sensor using a CCD that can recognize the presence and position of the illumination user M, and the local lighting device 50a is a local illumination as shown in FIG. It comprises a lighting fixture that is equipped with the variable irradiation direction motors MT1 and MT2 and is driven by the motors MT1 and MT2 and whose irradiation direction can be freely changed as will be described later.

  The local illumination irradiation direction variable motors MT1 and MT2 are controlled by the local illumination irradiation direction control units 63a provided corresponding to the local illumination irradiation direction control units 63a, respectively. Based on the position detection information of the illumination user M, the rotation of the local illumination irradiation direction variable motors MT1 and MT2 is controlled so that the irradiation direction of the corresponding local lighting device 50a.

  Since the other configuration is basically the same as that of the thirteenth embodiment, the same components as those shown in FIG. 22 and FIG.

  Thus, in this embodiment, the human sensor unit that detects the illumination user M, for example 62a, sends the detection signal to the lighting device 51a (or the control unit 54) of the corresponding local lighting device 50a, and the detection signal is sent to the lighting device 51a. The received lighting device 51a (or control unit 54) performs dimming control operation on the corresponding local lighting fixture 50a. That is, when a detection signal is sent to the lighting device 51a, the light control data from the control unit 54 is validated, and the lighting device performs light control using the control data. When a detection signal is sent to the control unit 54, the control unit 54 sends control data to the corresponding lighting device 51a, and the lighting device 51a that has received this control data performs dimming on the corresponding local lighting device 50a. Take control.

  Simultaneously with the dimming control, the human sensor 62a sends the detection position information of the lighting user M to the local illumination irradiation direction control unit 55a of the local lighting device 50a. Upon receiving the detected position information, the local illumination irradiation direction control unit 55a controls the rotation of the local illumination irradiation direction variable motors MT1 and MT2 so that the local lighting device 50a illuminates the field of view of the illumination user M, thereby local illumination. The irradiation direction of the instrument 50a is changed.

  Here, as the local lighting fixtures 50a used in the present embodiment, downlight type lighting fixtures are used as shown in FIGS. 34 (a) to (d). This luminaire has a bottomed cylindrical external fixture holding portion 64 and a motor that is rotationally driven in the horizontal direction by a motor MT1 housed in the external fixture holding portion 64 and provided on the upper surface of the external fixture holding portion 64. A housing 66 whose upper surface center is fixed to the drive shaft 65 of MT1, and a housing 66 disposed in the housing 66 so that one end thereof is rotated in the vertical direction by a drive shaft (not shown) of the motor MTb. The lamp 67, the reflector 68 disposed inside the other end of the lamp 67, and the light source L, the power lines 69 of the motors MT1 and MT2 are connected to the corresponding local illumination irradiation direction control sections 55a. The power line 70 from the light source L is connected to the corresponding lighting device 51a.

  Thus, the local illumination irradiation direction control unit 55a that has received the detected position information from the human sensor unit 62a, for example, controls the rotation of the motor MT1 and moves the housing 66 to the arrow shown in FIG. The lamp 67 is rotated in the direction, that is, in the horizontal direction so that the position of the lamp 67 corresponds to the direction in which the lighting user M is present, and the rotation of the motor MT2 is controlled to move the lamp 67 in the arrow direction shown in FIG. The irradiation angle of the reflecting plate 68 and the light source La is variably set so as to irradiate the illumination user M in the visual field.

As described above, in the present embodiment, the irradiation direction of the local lighting fixtures 50a... Is automatically changed so as to irradiate only within the visual field of the lighting user M based on the position information of the lighting user M who is working. Even if the bright user M is working at a position different from the previous one, the brightness (illuminance) in the field of view of the lighting user M corresponds to the change in the amount of sunlight from sunrise to sunset. In addition, the illuminance can be controlled to be higher than the average illuminance in the morning or afternoon at least during a predetermined period after noon.
(Embodiment 16)
In the fifteenth embodiment, the irradiation direction of the local lighting fixtures 50a ... is controlled based on the position information of the illumination user M detected by the human sensor units 62a ..., but in this embodiment, FIG. As shown in FIG. 36, a remote control that is a receiving means attached to the local lighting fixture 50a as shown in FIG. 36 is a remote control signal transmitted from a remote control transmitter 71 that uses, for example, infrared light as a signal medium. The signal light receivers 72a ... receive light. Here, the remote control signal sets the irradiation direction for each transmission channel, that is, the transmission channel is irradiation direction information, and the remote control signal light receiving unit 72a... Determines the irradiation direction according to the channel of the received remote control signal. The information of the irradiation direction is sent to the corresponding irradiation direction control unit 63a for local illumination. Therefore, as in the fifteenth embodiment, the present invention is suitable for work where the work place of the lighting user M is not fixed, offices, conference rooms, offices (offices) where the arrangement of desks, etc. change frequently.

  Thus, in this embodiment, the lighting user M operates the operation button of the transmission channel corresponding to the irradiation direction of the local lighting device within his field of view, and, for example, sends a remote control signal to the local lighting device 50a. When transmitted, the remote control signal light receiving unit 72a of the local lighting fixture 50a sends a signal indicating that the remote control signal has been received to the corresponding lighting device 51a (or the control unit 54), and receives the signal from the lighting device 51a (or the control unit 54a). The control unit 54) performs a dimming control operation on the corresponding local lighting fixture 50a. That is, when a detection signal is sent to the lighting devices 51a ..., the light control data from the control unit 54 is validated, and the lighting device performs light control based on the control data. Further, when a detection signal is sent to the control unit 54, the control unit 54 sends control data to the lighting devices 51a ... corresponding to the corresponding local lighting fixture 50a, and the lighting device that has received this control data performs dimming control. I do.

  Simultaneously with the above dimming control, the remote control signal light receiving unit 72a sends the irradiation direction information determined from the reception channel to the corresponding local illumination direction control unit 55a of the local lighting fixture 50a, and the local illumination irradiation direction control unit 55a Based on the irradiation direction information from the remote control signal light receiving unit 72a, the rotation direction of the motors MT1 and MT2 is controlled so as to irradiate the illumination user M with the required illuminance to change the irradiation direction of the local lighting fixture 50a.

  As the local lighting fixtures 50a used in this embodiment, the downlight type lighting fixtures shown in FIGS. 37A to 37D having substantially the same configuration as that shown in FIG. 34 are used. 34 is different from the local lighting fixture 50a in FIG. 34 in that a remote control light receiving portion 72 is provided in the housing 66, and a signal line 73 from the remote control light receiving portion 72 is provided. Is led out from the upper part of the external fixture holding part 64 so as to be sent to the corresponding local illumination irradiation direction control part 63. Since the other configuration is the same as the configuration of FIG. 34, the same components are denoted by the same numbers and symbols, and description thereof is omitted.

  Accordingly, the local illumination irradiation direction control unit 55a, which has received the irradiation direction information from the remote control signal light receiving units 54a, performs rotation control of the motors MT1, MT2, and sets the direction and the irradiation angle of the lamp 67 in the case of the fifteenth embodiment. Set the same as above. As described above, in this embodiment, the illumination user M himself selects the irradiation direction so as to irradiate only the field of view of the illumination user M who is working, and changes the irradiation direction of the local lighting fixtures 50a. Thus, even if the lighting user M is working at a position different from the previous one, the brightness (illuminance) in the field of view of the lighting user M is changed in the amount of sunlight from sunrise to sunset. While changing so as to correspond to the transition, it is possible to set the illuminance to be higher than the average illuminance in the morning or afternoon at least during a predetermined period after noon.

In the above configuration, the information transmitted from the remote control transmitter 71 is irradiation direction information indicating a preset irradiation direction, but an operation signal for remotely operating the movement of the local lighting device 50a... Using an operation means such as a joystick. Is transmitted from the remote control transmitter 71 as irradiation direction information, the irradiation direction can be set in an optimum direction by the operation of the illumination user M itself.
(Embodiment 17)
This embodiment is used between awakening in the morning and going out for the purpose of work, etc., and a washroom or dining room that is required to wake up a person to use so that it becomes active immediately after going out A space that is required to adjust the biological rhythm of the person to be used according to the purpose, such as a living room where the person to be used is in a relaxed state before falling asleep. It is a lighting system suitable for residential lighting.

  As shown in FIG. 38, the lighting system of the present embodiment includes one or more lighting fixtures 80 that can irradiate the visual field of a lighting user M installed in a washroom 74, for example, and dimming those lighting fixtures 80. A lighting device 51 having a function to control, a timer for creating data for changing the light amount of the lighting fixture 80 so as to correspond to a change in the light amount of sunlight from sunrise to sunset, or the brightness of external light A light amount change information generating unit 56 that outputs light amount change information that correlates with changes in the amount of sunlight light, and creates light control data by receiving the light amount change information as control data The control unit 54 is configured to be sent to the lighting device 51 and the power supply unit 55.

  In this embodiment, when the lighting switch SW is turned on, the control unit 54 sends control data to the lighting device 51 based on the light amount change information obtained from the light amount change information generating unit 56, and the lighting device 51 uses the control data as the control data. Based on the illumination light of the lighting fixture 80, the visual field of the human fixture to be used is controlled by dimming control so that the amount of light of the lighting fixture 80 becomes the target light amount. However, the luminaire 80 according to the present embodiment covers the light source with a milky panel that diffuses light so that unpleasant glare is not felt even when the luminaire 80 is directly viewed in a state where the maximum amount of light is irradiated.

  Usually, the washroom 74 is in a position where it is difficult for sunlight to enter in the house, so there is not enough light to raise the awakening level. Therefore, even if it enters the washroom 74 for washing the face, adjusting the hair, etc., the awakening level is almost the same as the state after the occurrence.

  However, in the lighting system of the present embodiment in the washroom 74, for example, the light quantity of the target lighting fixture 80 is changed by the light quantity change correlated with the light quantity change of outside light. When an action such as washing a face or preparing hair in 74 is performed, it is not long before the lighting device 8 is dimmed and controlled to illuminate the field of view of the illumination user M so that the amount of light gives an awakening effect. Therefore, it is possible to wake up even in a state where the wakefulness level is lowered, and it is possible to give the lighting user M the effect of increasing the activity efficiency in the future.

  On the other hand, when you go home and wash your hands in the washroom 74, or gargle, you can control the light intensity of the lighting fixture 80 so that it emits light at a lower illuminance level than in the morning or daytime. When you come home after going home from sleep, do not give glare to your eyes that are adapting to dark conditions, such as walking home in the dark at sunset, giving no extra awakening effect that is not needed when going home It can reduce the awakening level of the person who wants to go to the desired state of relaxation before going to sleep.

  Also, for those who are required to raise their arousal level during normal work hours such as night shifts and to bring them to an active state, increase their awakening level at night when they go out to work, etc. By changing the light intensity of the lighting fixtures by changing the light intensity of the lighting fixture by changing the light intensity of the lighting fixture by changing the light intensity of the lighting equipment at night to reduce the arousal level on the morning of going home, it is possible to adjust the biological rhythm of the user to be active at night it can.

As described above, in the lighting system according to the present embodiment, the biological rhythm of the lighting user M can be adjusted to match the target biological rhythm by changing the amount of light according to the purpose.
(Embodiment 18)
As shown in FIG. 39, the lighting system of the present embodiment includes a human sensor unit 62 that senses the presence of the lighting user M, and there is a lighting user M output from the human sensor unit 62. The control unit 54 having a function of lighting the target lighting fixture 80 by the lighting device 51 having a dimming function when the lighting user M exists is provided based on the detection information. For example, it is installed in the entrance 75.

  Thus, in the present embodiment, when the presence sensor unit 62 such as infrared detection detects that the person M exists in the irradiation area of the lighting fixture 80 installed at the entrance 75, the control unit 54 detects the detection information. When it is detected that the person M is present, the control unit 54 creates control data based on the light amount change information obtained from the light amount change information generation unit 56 configured in the same manner as in the fifteenth embodiment, and turns on the lighting device. Send to 51. Based on the control data received by the lighting device 51, the lighting fixture 80 is dimmed and controlled to irradiate the field of view of the illumination user M with a desired amount of light. On the other hand, when it is detected that there is no illumination user M, the control unit 54 sends a turn-off signal to the lighting device 51, and the lighting device 54 that has received the turn-off signal turns off the lighting fixture 80.

  By the way, since the entrance 75 is usually in a position where it is difficult for sunlight to enter in the house, there is not enough light to raise the awakening level. Therefore, even when entering the entrance 75 for going out in the morning, the arousal level could not be expected to rise.

  However, in the illumination system according to the present embodiment, for example, the light quantity change information correlated with the light quantity change of the external light is given from the light quantity change information generation unit 56 to the control unit 54, and the illumination user M is sent to the entrance 75 for going out in the morning. When the light level of the person M is present, the light level of the target lighting fixture 80 is dimmed to irradiate the field of view of the person M to be used, so that the level of wakefulness is high. The lighting user M in a lowered state can be awakened, and the effect of increasing the activity efficiency after going out can be given to the lighting user.

  On the other hand, when returning home and entering the entrance from outside, the lighting fixture 80 is dimmed and controlled so that the amount of light is emitted at a lower illuminance level than in the morning or noon, and then walks home in the dark at sunset. The lighting user M's awakening level is lowered between going home and falling asleep, such as not giving glare to the eyes adapting to the dark state, and not giving the extra awakening effect that is not needed when going home. It can be brought to the desired relaxed state before.

In FIG. 39, reference numeral 55 denotes a power supply unit as a power source.
(Embodiment 19)
As shown in FIG. 40, the illumination system of the present embodiment has a general lighting fixture 49 suspended from the ceiling portion 53 that can be irradiated with a light amount that is more than the minimum light amount among the required light amounts, and a table 76. It is provided with a local lighting device 50 that is provided and can illuminate the illumination user M with a change in the amount of light that correlates with a change in the amount of external light, and is applied to a dining room (table) 77.

Thus, in this embodiment, when it is necessary to illuminate with the minimum light amount, illumination is performed only with the general lighting device 49. Switch SW ₀ is the lighting switch of the general lighting fixtures 49, the lighting device 52 and the switch SW ₀ is turned on to light the general lighting fixtures 49 in the power from the power supply serving as a power supply unit 55 '.

  When higher illuminance is required, the control unit 54 of the local lighting device 50 such as a stand receives the light amount change information received from the light amount change information generation unit 56 configured in the same manner as in the above-described Embodiments 17 and 18. On the basis of this, the control data for changing the light quantity of the local lighting fixture 50 by the light quantity change correlated with the light quantity change of the external light is output, and the lighting device 51 for local illumination receiving the control data controls the control data. Dimming control is performed on the local lighting device 50 by receiving power from the power supply unit 55 as a power source so that the amount of light corresponds to the data.

  And the inside of the visual field of the illumination user M made into object is illuminated by the light quantity required by adding the illumination by the local lighting fixture 50 by which this light control was carried out. Here, in this embodiment, the amount of light of the local lighting device 50 is changed in a manner correlated with the change in the amount of external light, for example, by irradiating the field of view of the illumination user M with a light amount that gives a wakefulness effect at breakfast. Therefore, it is possible to wake up a person whose wakefulness level has fallen shortly, and to give the lighting user M the effect of increasing the activity efficiency in the future. On the other hand, at the time of dinner after returning home, by reducing the amount of light of the local lighting device 50 and irradiating it at a lower illuminance level than in the morning or noon, it does not give an extra awakening effect that is not required when returning home. Illumination can be presented so that meals can be taken in a relaxed state that is sometimes desired.

The local lighting device 50 is configured such that the light source is covered with a diffusible milky panel or the like so that unpleasant glare is not felt even when the local lighting device 50 is directly viewed.
(Embodiment 20)
Each of the above embodiments is related to a lighting system in a building such as a building or a house. However, this embodiment is applied to a high-speed bus or sleeper car that travels at night when it reaches the target value early in the morning, or in a place with a large time difference. It is applied to a lighting system suitable for a vehicle such as an airplane that is used for moving, and a lighting user who wakes up, activities, and sleeps at a time different from normal daily activities after use. It is applied to an airplane as shown.

  In the present embodiment, one or more lighting fixtures 80 that can irradiate the illumination user M in the field of view with a change in the amount of light, a lighting device 51 for dimming control of the lighting fixtures 80, and the seventeenth to nineteenth embodiments. A light amount change information generation unit 56 having the same configuration as that used, a control unit 54 that receives light amount change information from the light amount change information generation unit 56 and sends control data to the lighting device 51, and a power supply unit 55 that is a power source Consists of

  In the present embodiment, based on the information obtained from the light amount change information generating unit 56, the control unit 54 controls the lighting device 51 to change the light amount of the lighting fixture 80 by correlating with the light amount change of external light. The lighting device 51 that sent the data and received the control data performs dimming control so that the lighting fixture 80 irradiates the field of view of the illumination user M with the target light amount. However, the luminaire 80 used in the present embodiment is a milky panel (not shown) that diffuses light so that unpleasant glare is not felt even if the luminaire 80 is directly viewed in a state where the maximum amount of light is irradiated. Covers a light source (not shown).

  In the illumination system of this embodiment used for in-flight illumination of the airplane, the time difference from the departure place is changed by changing the light quantity of the target lighting fixture 80 by the light quantity change correlated with the light quantity change of outside light. Even when arriving at a large place, if the arrival time is in the morning, it is possible to irradiate the field of view of the lighting user M that is used by changing the amount of light in the morning, which gives an awakening effect. It becomes possible to awaken the lighting user M in a state where the level is lowered and to give the lighting user M the effect of increasing the activity efficiency at the arrival place. On the other hand, in the case of the night, the level of wakefulness is lowered, and the illumination user M's field of view is illuminated with a change in the amount of light at night that makes it easy to enter night activities such as sleep. The biological rhythm can be adjusted so that an activity pattern such as sleeping, getting up, activity, and sleeping can be smoothly shifted to a normal activity pattern at the arrival place.

In addition, when the lighting system of the present embodiment is applied to a vehicle that arrives early in the morning, such as a high-speed bus, the lighting user is changed by changing the amount of light so as to increase the lighting user's arousal level when the bus arrives. Irradiation increases the awakening level of a lighting user who normally arrives at the time of sleeping and has a lowered awakening level to the wake-up / activity state, and can easily shift to the activity after the lighting user gets off the vehicle Thus, the biological rhythm of the lighting user can be adjusted.
(Embodiment 21)
In the present embodiment, as shown in FIG. 42, a general lighting fixture 49 and a change in the amount of light that aim to uniformly illuminate the entire vehicle that can be irradiated with a light amount that is not less than the minimum amount of light required. In this embodiment, the lighting system is composed of local lighting fixtures 50a... That are capable of illuminating the illumination user's field of view.

  In this embodiment, when it is necessary to illuminate with the minimum light amount among the light amount changes correlated with the light amount change of external light, or when the illumination user M does not need such a light amount change, the local illumination is used. By turning off the lighting switches SWa attached to the fixtures 50a, the target illumination user M is irradiated with the light quantity of the general lighting fixture 49 alone. And when the light quantity change correlated with the light quantity change of the external light is required and the light quantity higher than the light quantity that can be irradiated by the general lighting apparatus 49 is required, the illumination user M of the local lighting apparatus 50a. The lighting switch SWa is turned on. In this case, the control unit 54 outputs control data for changing the light amount based on the light amount change correlated with the light amount change of the external light based on the light amount change information received from the light amount change information generating unit 56. Upon receiving the control data, the lighting devices 51a ... perform dimming control of the local lighting fixtures 50a ... so that the light amount according to the control data is obtained. Then, by adding illumination by the dimming-controlled local lighting fixtures 50a ..., it is possible to illuminate the field of view of the target illumination user M with a required light amount, and to correlate with a change in the amount of external light. The brightness within the visual field of the target illumination user M can be changed by changing the amount of light. Here, it is necessary to cover the light source of the local lighting fixtures 50a with a diffusible milky panel or the like so that unpleasant glare is not felt even when the local lighting fixtures 50a are directly viewed.

  The light amount change information output from the light amount change information generating unit 56 includes data for dimming control of the local lighting fixtures 50a.

  In the figure, 52 is a lighting device for the general lighting fixture 49, and 55 is a power supply unit which is a power source of the entire system.

It is a system configuration figure of Embodiment 1 of the present invention. It is a waveform diagram for operation | movement description of a power control part same as the above. It is explanatory drawing which shows the relationship between the external light change in the same as the above, and an illumination intensity change. It is a system configuration | structure figure of Embodiment 2 of this invention. It is explanatory drawing which shows the relationship between the external light change in the same as the above, and an illumination intensity change. It is a system configuration | structure figure of Embodiment 3 of this invention. It is a system configuration | structure figure of Embodiment 4 of this invention. It is a system configuration | structure figure of Embodiment 5 of this invention. It is a system configuration | structure figure of Embodiment 6 of this invention. It is explanatory drawing of the illumination intensity change by the same as the above. It is a system configuration | structure figure of Embodiment 7 of this invention. It is a system configuration | structure figure of Embodiment 8 of this invention. It is explanatory drawing of the illumination intensity change by the same as the above. It is a system configuration figure of Embodiment 9 of the present invention. It is a system configuration | structure figure of Embodiment 10 of this invention. It is a system configuration | structure figure of Embodiment 11 of this invention. It is an example figure of the lighting control pattern used for the same as the above. It is an example figure of another lighting control pattern used for the same as the above. It is an example figure of the other lighting control pattern used for the same as the above. It is a system configuration figure of Embodiment 12 of the present invention. It is an example figure of the lighting control pattern used for the same as the above. It is a system configuration | structure figure of an example of Embodiment 13 of this invention. It is a circuit block diagram same as the above. It is a system configuration | structure figure of the other example of Embodiment 13 of this invention. It is explanatory drawing of the other example of the local lighting fixture used for Embodiment 13 of this invention. It is an expanded sectional view of the principal part of a local lighting fixture same as the above. (A) is an expanded side view of a local lighting fixture same as the above. (B) is an enlarged front view of the local lighting fixture same as the above. (A) is a horizontal sectional view of other examples of a local lighting fixture used for Embodiment 13 of the present invention. (B) is a front view of a stand part housing | casing same as the above. (C) is a side view of the stand part housing | casing same as the above. It is use explanatory drawing same as the above. It is a system configuration | structure figure of Embodiment 14 of this invention. It is a circuit block diagram same as the above. It is a system configuration | structure figure of Embodiment 15 of this invention. It is a circuit block diagram same as the above. (A) is a perspective view of the local lighting fixture used for the same as the above. (B) is a bottom view of the local lighting fixture used in the above. (C) is a sectional side view of a local lighting fixture used in the above. (D) is a sectional side view of the state where the lamp of the local lighting fixture used in the above is rotated. It is a system configuration | structure figure of Embodiment 16 of this invention. It is a circuit block diagram same as the above. (A) is a perspective view of the local lighting fixture used for the same as the above. (B) is a bottom view of the local lighting fixture used in the above. (C) is a sectional side view of a local lighting fixture used in the above. (D) is a sectional side view of the state where the lamp of the local lighting fixture used in the above is rotated. It is a system configuration figure of Embodiment 17 of the present invention. It is a system configuration figure of Embodiment 18 of the present invention. It is a system configuration figure of Embodiment 19 of the present invention. It is a system configuration | structure figure of Embodiment 20 of this invention. It is a system configuration | structure figure of Embodiment 21 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light-receiving part 2 Power control part 3 Power supply part 4 Lighting device 5 Illumination load 6 Reference waveform generation part 7 Comparison part

Claims (10)

A lighting load for indoor lighting, a light receiving unit that receives sunlight and outputs a signal that correlates with the amount of light, and sets a lighting power level of the lighting load that correlates with an output signal of the light receiving unit A power control unit, a lighting device that lights the lighting load with the lighting power set by the power control unit, and a lighting control means that includes a power supply unit that supplies the lighting power to the lighting load via the lighting device. Lighting system characterized by A power level setting unit that sets a lower limit lighting power level in advance is provided, and the power control unit compares the lighting power corresponding to the output signal of the light receiving unit with the lighting power set by the power level setting unit, and turns on the larger one The lighting system according to claim 1, wherein the lighting power of the lighting load is controlled so as to correspond to the electric power. The power control unit includes a standby power supply unit that supplies power regardless of the control of the power control unit and a power level setting unit that sets a power level that is a lower limit in advance. 2. The lighting system according to claim 1, wherein, when the lighting power is lower than the level set in step 1, the power of the standby power supply unit is added to the power supplied by the power supply unit to control the lighting load. Standby power supply unit that supplies power regardless of the control of the power control unit, and power that supplies only the power supply unit to the lighting load or the power of the power supply unit plus the power of the standby power supply unit The lighting system according to claim 1, further comprising a switch unit for selecting whether to supply the light. 2. The illumination system according to claim 1, further comprising: a standby power supply unit that supplies power regardless of control by the power control unit; and a constant illuminance illumination load connected to the standby power supply unit. 4. The illumination system according to claim 2, wherein the power level setting unit changes a power level value to be set according to time. 6. The illumination system according to claim 3, wherein the light receiving unit and the power supply unit are configured by the same solar cell, and the standby power supply unit is configured by a commercial power source and a rectifier. The illumination system according to claim 1, 5 or 6, wherein power smoothed by adding a low-frequency pass filter to the power supply unit or the output of the solar cell is supplied as lighting power for the illumination load. In the power level setting section, the power setting value is changed over time so that it is small at night and large during the day, and in the morning transition period and evening transition period, respectively, to simulate sunrise and sunset in fine weather. The illumination system according to claim 6. A light-receiving surface movable part and a solar direction determination unit are added to the light-receiving unit or solar cell, and light is received based on the determination output of the solar direction determination unit so that the light-receiving surface of the light-receiving unit or solar cell follows the direction of the sun. 8. The illumination system according to claim 1, wherein the surface movable part is controlled.

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