JP3200744B2 - Toning lighting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable-color lighting device for obtaining mixed-color light by adjusting the light amounts and mixing ratios of a plurality of light sources having different emission colors from each other, and performs an interlocking control of various outdoor weather conditions. The present invention relates to a toning lighting device as described above.

[0002]

2. Description of the Related Art Conventional lighting devices are provided with the idea that they only need to be lit, and the environment created by the lighting device has been placed in a position that is often neglected or ignored. In recent years, lamps of various light colors have been developed for lighting devices (for example, fluorescent lamps), and they have come to produce a space. That is, lamps of daylight color (6,500K), day white (5,000K), white (4,200K), bulb color (3,000K), and the like are used properly according to the application. However, these cannot change the atmosphere of the place unless the lamp is replaced. For example, it is not possible to realize an ever-changing outdoor atmosphere.

[0003] On the other hand, various types of control for changing the illumination color have been conventionally proposed. For example, control for changing the dimming ratio of an RGB lamp is known. Also, a device for controlling the illumination color by a factor of time or season and changing the color and color temperature of the illumination according to the time or season has been filed (see Japanese Patent Application No. 2-158031). This is to change the lighting for each time in conjunction with a clock in a basement or a room without windows. Further, a device for changing the illumination color according to the temperature has been proposed (see Japanese Patent Application No. 2-17192). However, these are simulated images, and the weather conditions do not always match even at the same time and the same temperature, so that they do not reproduce the actual outdoors.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has been made in consideration of the above circumstances. The present invention detects a current outdoor atmosphere and illuminates the space with the most comfortable atmosphere. It is an object of the present invention to provide a color lighting device.

[0005]

FIG. 1 is a block diagram showing the basic configuration of the present invention. In the figure, 1 is a color temperature sensor,
2 is a daylight (illuminance) sensor, 3 is a color temperature data address output section, 4 is a dimming data address output section, 5 is a dimming data storage section, 6a to 6c are toning data conversion sections, and 7a to 7c.
Is a toning lighting device, and 8a to 8c are lamps having different emission colors (for example, RGB lamps). Addresses are set and output from the color temperature data address output unit 3 and the dimming data address output unit 4, respectively, in accordance with the output states of the color temperature sensor 1 and the daylight sensor 2, and the lamps 8a, 8b,
Data corresponding to the set address is read out by the toning data storage unit 5 storing the dimming level data 8c. This data is used in the toning data conversion units 6a to
6c, is converted into a toning signal, and the toning lighting devices 7a, 7
b, 7c, and the lamps 8a, 8b, 8c are respectively turned on at dimming levels according to the signals. Here, the light outputs from the lamps 8a, 8b, 8c are mixed by a milky white panel or the like to form one light source, and the light source obtains the light color of illumination. The dimming lighting is performed as described above in accordance with the output states of the color temperature sensor 1 and the daylight sensor 2 to change the color temperature of the light color of the illumination. Although the color temperature corresponds to the black body locus of the chromaticity coordinates by definition, only such a locus is rare, so it actually means a change in correlated color temperature, This correlated color temperature is called a color temperature.

[0006]

In the lighting device according to the present invention, the current outdoor atmosphere is detected by the color temperature sensor 1 and the daylight (illuminance) sensor 2, and the lamps 8a having different emission colors according to the detected atmosphere.
8c is controlled so that the space can be illuminated with the most comfortable atmosphere.

[0007]

FIG. 2 is a circuit diagram of a first embodiment of the present invention.
Reference numeral 1 denotes a color temperature sensor, such as a color chromaticity meter, whose output is chromaticity coordinates (X, Y). Reference numeral 3 denotes a color temperature data address output unit, which outputs 4 bits (1 bit) according to the chromaticity coordinate value detected from the color temperature sensor 1.
6) is output. More specifically, as shown in Table 1, the color temperature is divided into 16
When the chromaticity coordinates (X, Y) are in the range of 900K to 3100K, the address 0000 is output, and 3100K to 3300K is output.
Address 000 when in the range of K chromaticity coordinates (X, Y)
1 is output, and thereafter, similarly, 8500K-9500
If the chromaticity coordinates of K are within the range of (X, Y), the address 111
Outputs 1.

Next, 2 is a daylight sensor, for example,
It is like an illuminometer, the output of which is illuminance (lx)
It is. Reference numeral 4 denotes a dimming data address output unit, which outputs 3-bit (8-division) address data according to the illuminance value detected from the daylight sensor 2. More specifically, as shown in Table 2, the illuminance is divided into eight,
0 to 100,000 lx outputs address 000,
The address 001 is output for 30,000 to 50,000 lx, and thereafter, the address 111 is output for 0 to 1,000 lx.

[0009]

[Table 1]

Reference numeral 5 denotes a toning data storage unit, which includes dimming data addresses A _{0 to} A ₂ and color temperature data addresses A _{3 to} A _6.
The dimming data (8 bits each) of each of the lamps 8a, 8b, 8c corresponding to the address A is stored in advance.
₀ to A ₆ and outputs a dimmer data according to, for example, is as a ROM (read-only memory). 6a, 6b, 6c are the dimming data (8 bits each)
For example, it is a toning data conversion unit that converts the received toning signal into a PWM (pulse width modulation) type variable duty toning signal.

[0011]

[Table 2]

Now, when the color temperature data address is 0000, that is, when the outdoor color temperature is in the range of 2,900 to 3,100 K, the lamps 8a, 8b, 8c are dimmed, and the mixed color temperature becomes 8-bit data corresponding to each light control amount, which is about 3,000K, is output. The light control data address is, for example, 000, that is, when the illuminance outdoors is in the range of 50,000 to 100,000 lx, the light output is 5,000 lm at the color temperature corresponding to the color temperature data address. The light control data (8 bits each) is output. Also,
The dimming data address is 111, that is, the outdoor illuminance is 0
2,500 l when the range is ~ 1,000 lx
Light control data (8 bits each) is output such that the light output is m (50% light control amount when the illuminance outdoors is in the range of 50,000 to 100,000 lx).

Reference numerals 7a, 7b and 7c are toning lighting devices.
First, the toning lighting device 7a is a two-stone inverter-type lighting device, in which a commercial AC power supply is full-wave rectified by a full-wave rectifier DB1, and a DC voltage obtained by smoothing with a capacitor C1 is connected in series with transistors Q1 and Q2. The duty-variable toning signal applied to the circuit and output from the toning data conversion unit 6a in the PWM method is converted into a frequency-variable signal by the duty / frequency conversion circuit F1, and the control circuit S1 uses the frequency to change the transistor Q1. , Q2 are turned on and off alternately, and the lamp 8a is turned on by the resonance action of the series circuit of the inductor L1 and the capacitor C4 connected to both ends of the transistor Q2. Changes the resonance current supplied to the lamp 8a, and the light output of the lamp 8a is controlled. It is intended. Other toning lighting device 7
b and 7c have the same configuration. Therefore, the output data D _{0 to} D ₇ , D _{8 to} D ₁₅ ,
Based on D ₁₆ to D _23, the lamps 8a, 8b, it determines the appropriate dimming ratio of 8c, outdoor color temperature and illuminance can faithfully reproduce indoors.

FIG. 3 is a block circuit diagram of a second embodiment of the present invention. 1 is a color temperature sensor, 2 is a daylight sensor, which may be the same as in the first embodiment. In this embodiment, in addition to the color temperature sensor 1 and the daylight sensor 2,
It detects an outdoor environment including the temperature sensor 9 and the rainfall sensor 10. Thereby, in addition to directing the outdoors faithfully, the lamp 8a,
It corrects the light color (color temperature) obtained by mixing 8b and 8c. Reference numeral 11 denotes a toning data address output unit for outputting a toning data address according to the output state of each of the sensors 1, 2, 9, and 10. Reference numeral 5 denotes a toning data storage unit, 6a, 6b, and 6c denote toning data conversion units, 7 denotes a toning lighting device, and 8a, 8b, and 8c denote lamps having different emission colors. Same as the example.

The present embodiment will be described more specifically. The color temperature sensor 1 may be the same color chromaticity meter as that of the above-described first embodiment, or a color sensor shown in FIG.
Sharp PD170V1) may be used. When the latter color sensor is used, the relationship between the sensor output and the color temperature is as shown in FIG. This color sensor is blue,
After the outputs of the photodiodes PDb, PDg, and PDr having the green and red color filters are logarithmically converted by a log diode and an operational amplifier, the outputs are converted into two output voltages Vbg and Vgr by a differential amplifier including a resistor and an operational amplifier. Is what you do. Vk is a reference voltage.

The data conversion table from the color temperature sensor 1 is the same as in Table 1, and the data conversion table from the daylight sensor 2 is the same as in Table 2. The data conversion table from the temperature sensor 9 is 2-bit output as shown in Table 3, and the data conversion table from the rain sensor 10 is Table 4
Output as 1 bit. Thus, the toning data address output unit 11 outputs the color temperature address (4
, A daylight address (3 bits), a temperature address (2 bits), and a rainfall address (1 bit). The toning data storage unit 5 is accessed by this address, and the toning data at that time is output. As shown in Tables 5 and 6, the color temperature address and the daylight address are the same. Even if the temperature and the weather are different, the toning data is such that the reproduced color temperature and illuminance are also corrected.

[0017]

[Table 3]

[0018]

[Table 4]

First, in the example shown in Table 5, the outdoor environment has a color temperature of 6,500 to 7,000 K and an illuminance of 10,000.
Up to 30,000 lx without rainfall, color temperature data address is 1100, daylight data address is 01
0, rainfall data address is 0. In this case, the toning data of an indoor reproduction scene changes depending on the outdoor temperature. When the temperature is 10 ° C. or less (temperature data address is 00), the color temperature is 4,000 K, and the temperature is 10 to 20 ° C.
When the temperature data address is 01, the color temperature is 5,
000K, when the temperature is 20 to 30 ° C (temperature data address is 10), the color temperature is 6,500K, and the temperature is 30 ° C.
In the above case (when the temperature data address is 11), the color temperature changes to 8,000K. That is, when the outdoor temperature is low, the color temperature (6,500 K) level faithfully reproduced is lowered to make the atmosphere warm, and when the temperature is high, the correction is performed in reverse. In this example, the illuminance is 5,000.
It remains unchanged at lm.

[0020]

[Table 5]

[0021]

[Table 6]

Next, in the example shown in Table 6, the outdoor environment has a color temperature of 4,900 to 5,200 K and an illuminance of 2,000 to 2,000.
3,000 lx, the temperature is 20 to 30 ° C., and only the illuminance level is corrected based on the presence or absence of rainfall. In this example,
When there is rainfall, the illuminance is slightly higher. As described above, in the present embodiment, a more comfortable space can be created by not only faithfully reproducing the outdoor color temperature but also correcting the toning level based on the temperature and weather.

FIG. 6 is a block circuit diagram of a third embodiment of the present invention. In this embodiment, the lighting device L for toning using the toning lighting device as shown in the above-described first embodiment has a large number of lamps,
In a space installed in an office or the like, the color temperature of the luminaire L in the first row near the window is controlled in accordance with the color temperature outdoors. In the figure, 1 is a color temperature sensor,
Based on the detection output, the toning data address output unit 12
Outputs a data address. Toning data storage unit 5
In step 1, the toning data is read out based on the input data address,
The signal is converted into a signal of the system and supplied to the lighting device L for toning. The data address input to the toning data storage unit 51 can be switched by the changeover switch 15. The color temperature change operation unit 14 is arranged near the changeover switch 15. A data address is output from the toning data address output unit 13 based on the output of the color temperature change operation unit 14. When the data address from the toning data address output unit 13 is input to the toning data storage unit 51 by operating the changeover switch 15, the lighting fixture L in the first row near the window receives the color temperature change by the color temperature change operation unit 14. Operated.
Further, when the changeover switch 15 is operated to input the data address from the toning data address output unit 12 to the toning data storage unit 51, the lighting fixture L in the first row near the window has the outdoor lighting detected by the color temperature sensor 1. Is controlled according to the color temperature. The data address from the toning data address output unit 13 is also input to the toning data storage unit 52, and the toning data read from the toning data storage unit 52 is converted into the toning data conversion unit 62. , And is supplied to the toning lighting fixture L in the second row near the window or the third row near the window. Therefore, the color temperature change operation unit 14 operates the color temperature change operation unit 14 of the toning lighting device L in the second row near the window or the third row near the window, regardless of the outdoor color temperature detected by the color temperature sensor 1. You. Note that the toning data address output unit 13 is constituted by, for example, a counter or the like, and the color temperature change operation unit 14 is constituted by an up / down switch or the like for operating the counter, and increases or decreases the count value of the counter. By doing so, a desired data address is created.

FIG. 7 shows a lighting device L for toning in this embodiment.
The left side in the figure is the window side. FIG. 7 also shows the relationship between the color temperature and the distance from the window according to the present embodiment. When the color temperature change operation button 14 is used to set the toning lighting device L to a color temperature of 5,000K, and the external light is 10,000K, the solid line A in the figure is used.
As shown in FIG. 1, only the lighting equipment L in the first row near the window is 10,
The color temperature is controlled to 000K. Also, if the external light is 3,000
In the case of K, as shown by the solid line A2 in the figure, only the luminaire L in the first row near the window is controlled to the color temperature of 3,000K.
Here, when the changeover switch 15 is operated to input the data address from the toning data address output unit 13 to the toning data storage unit 51, the color temperature of the lighting equipment L in the first row near the window is set outdoors. It does not work with the color temperature sensor 1.
In this case, the color temperature of all the lighting devices L is changed uniformly by the color temperature change operation unit 14. The color temperature distribution when the color temperature is set to 5,000 K is as shown by the dashed lines B1 and B2 in the figure. in this way,
Conventionally, when external light enters, only the window part has a slightly different color temperature as indicated by the dashed lines B1 and B2 in the figure, but in the present invention, only the lighting fixture L near the window is exposed to the color temperature of the external light. Since the lighting color is set to the same as that of the above, only the window side has a more outdoor feeling, and the feeling of comfort and openness is enhanced.

FIG. 8 is a block circuit diagram of a fourth embodiment of the present invention. In this embodiment, in a space similar to the above-described third embodiment, even when external light enters from the window side, control is performed so as to uniformly match the color temperature set in all areas. The toning data address output unit 13
Toning address data is output in response to the operation of the color temperature change operation button 14, toning data is read from the toning data storage unit 52 based on the address data, and the toning data conversion unit 62 uses the PWM method. Converted to a signal
The color temperature of the luminaire L in the third row or the third row near the window is controlled.
The above configuration is the same as that of the third embodiment. next,
For the first column near the window, the toning data address output unit 13
Based on the outputs of the color temperature sensor 1 and the daylight sensor 2, the toning data calculated and output by the data calculation output unit 17 is converted to a PWM signal by the toning data conversion unit 61, and the lighting equipment L Is controlled.

Hereinafter, the control of the luminaire L in the first row near the window will be described. When the user sets a desired color temperature using the color temperature change operation button 14, the color temperature (Xi, Y
i) and data (Xi, Yi, Φi) of the set light amount Φi are output from the toning chromaticity coordinate data output unit 16. On the other hand, the color temperature sensor 1 and the daylight sensor 2 use the data (Xj, Yj) of the color temperature (Xj, Yj) of the outdoor light and the incident light amount Φj.
j, Φj) are output. These two data (X
i, Yi, Φi) and (Xj, Yj, Φj) are calculated by the data calculation output unit 17, and the lighting fixture L near the window is set so that the mixed light of the outside light and the lighting fixture L does not change from the originally set color temperature. Is changed (Xi *, Yi *). The equation for calculating the set color temperature (Xi *, Yi *) is as follows.

[0027]

(Equation 1)

The set light quantity of the luminaire L near the window is Φi, and the set data (Xi, Y
i, Φi) with corrected color temperature (Xi *, Yi
*, Φi) is output, and this data is converted by the toning data conversion unit 61 into data on the amount of light adjustment of the lighting fixture L.
The color temperature is changed to a toning signal, and the color temperature of the toning lighting device L in the first row near the window changes according to the signal, and the color temperature immediately below the same remains at the originally set color temperature. Therefore, even if external light enters, the color temperature of the entire space is always constant. This is shown in FIG. Conventionally, when external light enters as shown by alternate long and short dash lines B1 and B2, the color temperature just below the window changes, which may cause a sense of incongruity with other spaces. By controlling only the color temperature and not changing the color temperature of the color mixture immediately below, the entire space is kept constant at the set color temperature as shown by the solid lines A1 and A2. This has the effect of disappearing.

FIG. 10 is a block diagram of a fifth embodiment of the present invention. In this embodiment, when a person enters the room from the outdoors, the color temperature and illuminance in the room are changed from normal times for a while after entering the room in conjunction with this, so that an outdoor atmosphere is obtained. It is. For example, control is performed such that the illuminance is increased to 150% of the normal color temperature in accordance with the outdoor color temperature. In the figure, 1 is a color temperature sensor, 2 is a daylight sensor, 11 and 13 are toning data address output units,
14 is a color temperature change operation button, 19 is a toning chromaticity coordinate data storage unit, 21 is a data operation processing unit, 6 is a toning data conversion unit, 7 is a toning lighting device, and 8a, 8b, and 8c are emission color devices. A different lamp, 22 is a human body sensor. When the user sets a desired color temperature with the color temperature change operation unit 14,
Addresses are sequentially output from the toning data address output unit 13 by a counter or the like, and the toning chromaticity coordinate data storage unit 20 is output.
From the chromaticity coordinates of the desired color temperature and the data of the light quantity (Xi,
Yi, Φi) are output. On the other hand, the color temperature sensor 1 and the daylight sensor 2 output chromaticity coordinates and illuminance data (Xj, Yj, Φj) of the color temperature of outdoor light. These two data are processed by the data processing unit 21 to output toning data that changes with time as shown in FIG. As a result, the toning signal that has been data-converted by the toning data converter 6 is input to the toning lighting device 7, and the respective lamps 8a, 8b, and 8c are turned on.

An example of control according to this embodiment will be described with reference to FIG. Now, at time t1, when a person enters the room from outdoors, the lamps 8a, 8b and 8c are turned on by the human body sensor 22. At this time, the light is turned on at a color temperature (8,000 K) corresponding to the color temperature of the external light and the illuminance and a light amount ratio (150% light amount). Thereafter, as the time elapses, the color temperature and the light amount ratio gradually decrease, and at time t2, the color temperature and the illuminance return to the color temperature and the illuminance set by the color temperature change operation unit 14.

FIG. 12 shows the flow of data creation by the data processing unit 21. From the chromaticity coordinates (Xj, Yj) of the initial color temperature to the chromaticity coordinates (X
i, Yi) by dividing the time τ (see FIG. 11) into n equal parts,
This is a flow for creating instantaneous data (Xt, Yt, Φt). Note that K represents a certain coefficient. In this way, when a person enters the room from the outdoors, it is temporarily lit at a color temperature and illuminance close to the state of the outdoors, and gradually changes to the original set value, eliminating discomfort to environmental changes, This has the effect of accelerating eye adaptation. The change time τ of the color temperature and the light amount is not particularly limited as long as it is a time that eliminates unnaturalness and speeds up adaptation. Further, the change may be stepwise. Before time t1, that is, when the human body sensor 22 is not operating, the lamps 8a to 8c are turned off, but may be turned on at the initial set color temperature and illuminance level.

In the present invention, the types of various sensors are:
Any environment detecting means for detecting outdoor environment information may be used, and the details of the detection are not limited to those exemplified in the embodiment. Also, the number of sensors may be increased or decreased as needed. For example, an air flow sensor and a time timer may be added. Further, the toning lighting device is not limited to the high frequency lighting device, but may be any type such as a commercial AC lighting system or a DC lighting system. The type of the toning signal may be any type such as a duty signal or a DC signal as long as it is converted from the toning data. In addition, the type of lamp
Anything can be used as long as it emits a different color, and is not limited to a discharge lamp. For example, a combination of an incandescent lamp and a color filter may be used. The specific color temperature and illuminance control exemplified in the embodiment are only examples, and the present invention is not limited thereto.

[0033]

According to the toning lighting device of the first aspect, outdoor environment information is detected, and the outdoor environment information is detected based on the detected environment information.
The color temperature and illuminance are changed to reproduce the environment of the room, so the outdoor atmosphere that changes every moment is reproduced.
There is an effect that it can be illuminated.

According to the toning illumination device of the second aspect, the color temperature and the illuminance in the space area where the external light enters can be made closer to the outdoors,
There is an effect that a lighting environment with a high open feeling can be obtained.

According to the third aspect of the present invention, the color temperature and the illuminance of the space area where the outside light enters and the other space area are controlled to be uniform, so that even if the outdoor light changes, the indoor area changes. This has the effect that the lighting environment can be unchanged.

According to the toning illumination device of the present invention, the color temperature and the illuminance of the room are set close to the outdoor light for a predetermined time after a person enters the room from the outside, so that a lighting environment without a sense of incongruity is obtained. There is an effect that it can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of the present invention.

FIG. 2 is a circuit diagram of a first embodiment of the present invention.

FIG. 3 is a block circuit diagram of a second embodiment of the present invention.

FIG. 4 is a circuit diagram showing a configuration of a color temperature sensor used in a second embodiment of the present invention.

FIG. 5 is a characteristic diagram showing characteristics of a color temperature sensor used in a second embodiment of the present invention.

FIG. 6 is a block circuit diagram of a third embodiment of the present invention.

FIG. 7 is an operation explanatory view of a third embodiment of the present invention.

FIG. 8 is a block circuit diagram of a fourth embodiment of the present invention.

FIG. 9 is an operation explanatory diagram of the fourth embodiment of the present invention.

FIG. 10 is a block circuit diagram according to a fifth embodiment of the present invention.

FIG. 11 is an operation explanatory view of a fifth embodiment of the present invention.

FIG. 12 is a flowchart for explaining the operation of the fifth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 color temperature sensor 2 daylight sensor 3 color temperature data address output unit 4 dimming data address output unit 5 toning data storage unit 6a, 6b, 6c toning data conversion unit 7a, 7b, 7c toning lighting device 8a, 8b , 8c lamp

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-206391 (JP, A) JP-A-3-116308 (JP, A) JP-A-3-31637 (JP, A) JP-A-50- 65069 (JP, A) JP-A-62-117297 (JP, A) JP-A-3-184203 (JP, A) JP-A-2-158094 (JP, A) JP-A-1-320798 (JP, A) JP-A-4-190593 (JP, A) JP-A-4-14796 (JP, A) JP-A-4-190591 (JP, A) JP-A-1-181195 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H05B 37/00-39/10 H05B 41/36

Claims (4)

(57) [Claims] An environment detecting means for detecting outdoor environment information, and an outdoor environment is reproduced based on the detected environment information.
And a toning control means for changing the color temperature and the illuminance . 2. An environment detecting means for detecting outdoor environment information.
And outdoor environment based on detected environmental information.
Toning control hand that selects and reproduces suitable color temperature and illuminance
A toning lighting device having a stage, toning lighting device characterized by comprising means for varying the color temperature and intensity to reproduce the outdoor environment only spatial region of the start of the outside light. 3. An environment detecting means for detecting outdoor environment information.
And outdoor environment based on detected environmental information.
Toning control hand that selects and reproduces suitable color temperature and illuminance
A toning lighting device having a stage, so that the color temperature distribution in the spatial domain and other spatial regions entering external light is the same, comprising means for varying the color temperature only spatial region entering external light A toning lighting device, characterized in that: 4. An environment detecting means for detecting outdoor environment information.
And outdoor environment based on detected environmental information.
Toning control hand that selects and reproduces suitable color temperature and illuminance
A toned lighting device having a step, a human body sensor that detects that a person has entered a room from the outside, and a color temperature and a predetermined time after detecting a human body so as to reproduce an outdoor environment. <br/> toning lighting device characterized by comprising means for the illumination is variable.