JP6210452B2 - Lighting controller and lighting fixture - Google Patents

Description

  The present invention relates to a lighting controller for operating a lighting fixture, and a lighting fixture that is dimmed and lit according to an operation on the lighting controller.

  Bright white light such as daylight white fluorescent light, that is, light with high color temperature, makes people feel refreshed, but if the illuminance (brightness) is too low, it gives a negative and cold impression, Red light like incandescent light, that is, light with low color temperature, gives a mild and warm impression when the illuminance is low, but psychological effect that gives too much heat and discomfort when the illuminance is too high (Comfort area of Kruitov) It has been known.

  For this reason, for example, there is a relationship between the color temperature and the illuminance of light that can give a comfortable impression to humans, such as suppressing the illuminance with reddish light with a low color temperature and increasing the illuminance with pale light with a high color temperature. Conventionally known (see, for example, Non-Patent Document 1 and FIG. 8). FIG. 8 is a graph showing an example of a curve CRV representing the relationship between the color temperature of light that gives a comfortable impression to a person and the illuminance. In the curve CRV shown in FIG. 8, light with a color temperature in the range of 2200K to 2700K, for example, gives a person a gentle and warm impression when the illuminance of reddish light is low like an incandescent lamp. For example, light with a color temperature in the range of 3500K to 5000K gives a refreshing feeling to a person when the illuminance of pale light is high like a fluorescent lamp.

  In view of the above-described psychological effects, various illumination devices that change the color temperature and illuminance of illumination light have been proposed (see, for example, Patent Document 1). In the illumination device shown in Patent Document 1, the color temperature and the light amount of the illumination light are increased or decreased in association with the change of the operation input in the range below the predetermined color temperature in accordance with the operation input received by the controller. The light quantity of each light emitting element of the illumination light source is determined. In addition, the illumination device disclosed in Patent Document 1 includes each of the illumination light sources so that the color temperature of the illumination light increases or decreases in response to a change in operation input while keeping the light amount within a predetermined range in a range of a predetermined color temperature or higher. The light quantity of the light emitting element is determined.

JP 2010-176984 A

Housing Lighting Equipment 2013-2014 General Catalog, Panasonic Corporation, [online], [searched on July 31, 2013], Internet <URL: http://sumai.panasonic.jp/catalog/lighting.html>

  However, in the prior art including Patent Document 1 described above, for example, when a person adjusts the color temperature of illumination light to day white or light bulb color, illumination in which a comfortable area of Kruidoff appears according to day white, warm white, or light bulb color. There was a problem that it was difficult for a person to easily set the illuminance of light.

  For example, when the color temperature and illuminance of the illumination light are adjusted over the entire range of the color temperature according to the curve CRV shown in FIG. There was an inconvenience in operation that it was necessary to keep pressing the button and the illuminance adjustment button.

  In order to solve the above-described conventional problems, the present invention provides an illumination controller that adjusts the color temperature and illuminance of illumination light over a wide range of color temperatures by a simple operation, and a luminaire including the illumination controller. For the purpose.

One embodiment of the present invention is based on a combination of a plurality of color temperatures and illuminances that satisfies a relationship between the color temperature and illuminance of a predetermined light in an illumination light source including a plurality of light emitting elements that emit light of different colors. An operation unit that adjusts color temperature and illuminance of light emitted by the plurality of light emitting elements , and a plurality of display units that are provided corresponding to combinations of the plurality of color temperature and illuminance, respectively, The operation unit adjusts the color temperature and illuminance of the light so as to continuously increase and decrease according to a long press operation from the outside, and adjusts the color temperature and illuminance of the light according to a single press operation from the outside. together is adjusted to increase or decrease discretely, said selected according to a single pressing operation, and turns the display of any corresponding to one of combinations of the plurality of color temperature and illuminance, the illumination It is a controller.

  One embodiment of the present invention is the illumination controller, wherein the discrete values of the color temperature and the illuminance of the light according to the single press operation are recommended values that satisfy the relationship between the color temperature and the illuminance of the predetermined light. .

  Another embodiment of the present invention is the illumination controller, wherein the relationship between the color temperature and illuminance of the predetermined light is a relationship between the color temperature and illuminance of light that gives a comfortable impression to a person.

  One embodiment of the present invention is the illumination controller, wherein the color temperature of the predetermined light is a color temperature corresponding to a light bulb color, warm white, or daylight white.

  One embodiment of the present invention includes any one of the illumination controllers, and a power supply unit that emits light of a color temperature and illuminance corresponding to the operation from the illumination light source in response to an operation on the illumination controller. It is a lighting fixture provided.

  According to the present invention, the color temperature and illuminance of illumination light can be adjusted over a wide range of color temperatures by a simple operation.

(A) The block diagram which shows the whole structure of the lighting fixture of this embodiment, (B) The block diagram which shows an example of an internal structure of a power supply unit, (C) Red LED drive part, green LED drive part, and blue LED drive part Diagram showing an example of circuit configuration 1A is an enlarged explanatory diagram of the lighting controller shown in FIG. 1A, FIG. 1B is a block diagram simply showing an example of the internal configuration of the controller unit shown in FIG. Explanatory drawing which shows an example of the change of the color temperature of the light from an illumination light source, and illumination intensity according to operation of the illumination controller of this embodiment. Explanatory drawing which shows an example of the change of the color temperature and the illumination intensity of the light from an illumination light source according to the long press operation and single press operation of the switch for adjustment The figure which shows an example of the room where the lighting controller and the some lighting fixture were attached (A) Explanatory drawing which shows an example of the change of the color temperature and illumination intensity of the illumination light from a lighting fixture according to operation of the illumination controller of a 1st modification, (B) The controller unit of the illumination controller of a 1st modification The figure which shows an example, (C) The figure which shows another example of the controller unit of the illumination controller of a 1st modification (A) The block diagram which shows the whole structure of the lighting fixture of a 2nd modification, (B) The block diagram which shows an example of an internal structure of a power supply unit A graph showing an example of a curve representing the relationship between color temperature and illuminance of light that gives a comfortable impression to people

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a lighting controller and a lighting fixture according to the present invention (hereinafter referred to as “this embodiment”) will be described with reference to the drawings.

(This embodiment)
FIG. 1A is a block diagram showing the overall configuration of the lighting fixture 5 of the present embodiment. FIG. 1B is a block diagram illustrating an example of an internal configuration of the power supply unit 2-1. FIG. 1C is a diagram illustrating an example of a circuit configuration of the red LED driving unit 27R, the green LED driving unit 27G, and the blue LED driving unit 27B.

  A lighting fixture 5 shown in FIG. 1A includes a lighting controller 1, at least one illumination light source 3-1,..., 3-n (n: an integer of 2 or more), and at least one power supply unit 2-1. ..., 2-n. In the lighting fixture 5 shown in FIG. 1A, the power supply units 2-1, ..., 2-n are provided corresponding to the respective illumination light sources. Hereinafter, each part of the lighting fixture 5 shown to FIG. 1 (A) is demonstrated in order of illumination light source 3-1, ..., 3-n, power supply unit 2-1, ..., 2-n, and the illumination controller 1. FIG. In addition, the lighting fixture 5 is good also as a structure which does not include the illumination controller 1 but includes at least one illumination light source and at least one power supply unit provided corresponding to the illumination light source.

  Since the illumination light sources 3-1,..., 3-n all have the same configuration, the illumination light source 3-1 shown in FIG.

  The illumination light source 3-1 includes light emitting elements 3R, 3G, and 3B that emit red (R), green (G), and blue (B) light of three different colors. The light emitting elements 3R, 3G, and 3B of the illumination light source 3-1 of the present embodiment are configured using, for example, LEDs (Light Emission Diodes), and are a red LED, a green LED, and a blue LED, respectively. However, the three-color light emitting elements constituting the illumination light source 3-1 may be light emitting elements other than LEDs as long as they are semiconductor light emitting elements, and may be organic EL (Electroluminescence) elements, for example.

Here, the chromaticity coordinates of the light colors of the light emitting elements 3R, 3G, and 3B of the respective colors are (x _R , y _R ), (x _G , y _G ), and (x _B , y _B ), respectively, and the light emission of each color When the light amounts (illuminance) of the elements 3R, 3G, and 3B are Y _R , Y _G , and Y _B , respectively, the chromaticity coordinates (x ₀ , y ₀ ) and the light amount Y ₀ of the light color of the illumination light that is mixed color light are , Expressed by Equation (1).

Each light-emitting elements 3R, 3G, 3B, each quantity Y _R, Y _G, light color be changed Y _B, that is, the wavelength or color temperature of the light does not change, the light-emitting elements 3R, 3G, 3B of the light amount Y By changing the ratio of the light amounts Y _R , Y _G and Y _{B to 0,} the light color (color temperature) of the illumination light obtained as a mixed color can be changed. Further, if the light amounts Y _R , Y _G , Y _B are changed while maintaining the ratios of the light amounts Y _R , Y _G , Y _B of the light emitting elements 3R, 3G, 3B, the same light color (color temperature) is obtained. The light quantity (illuminance) of the illumination light can be changed. Accordingly, in the present embodiment, each light emitting element 3R, 3G, 3B, each quantity Y _R, Y _G, changing the Y _B, further, the light amount Y _R for amount _{Y 0} of the light-emitting elements 3R, 3G, 3B, By changing the ratio of Y _G and Y _B , the light color (color temperature) of the illumination light obtained as a mixed color can be changed.

Further, the light amounts Y _R , Y _G , Y _B of the light emitting elements 3R, 3G, 3B are determined by the amount of power supplied. For this reason, as will be described later, for example, for the illumination light source 3-1, by increasing or decreasing the amount of power supplied from the power supply unit 2-1 to each light emitting element 3R, 3G, 3B, the light color of the illumination light and The amount of light can be adjusted. Here, by determining the light amounts Y _R , Y _G , Y _B of the light emitting elements 3R, 3G, 3B of the illumination light source 3-1, so that the chromaticity of the illumination light changes substantially along the black body locus, The color of illumination light can be specified by color temperature.

  Since the power supply units 2-1, ..., 2-n as an example of the power supply unit have the same configuration, the power supply unit 2-1 shown in FIG. 1A is illustrated with reference to FIG. To explain.

  A power supply unit 2-1 shown in FIG. 1B includes a control signal input unit 21, an AC / DC conversion unit 23, a drive signal conversion unit 25, a red LED drive unit 27R, a green LED drive unit 27G, And a blue LED driving unit 27B.

  The control signal input unit 21 receives a control signal (described later) output from the illumination controller 1 in response to an operation (for example, a long press operation or a single press operation described later) on the illumination controller 1. The control signal input unit 21 converts the input control signal into a DC voltage signal, and supplies (applies) the converted DC voltage signal to the drive signal conversion unit 25.

  The AC / DC converter 23 converts the AC voltage signal fed through the lighting controller 1 into a desired DC voltage signal necessary for the operation of the drive signal converter 25, and converts the desired DC voltage signal into the drive signal converter 25. Is supplied (applied).

The drive signal conversion unit 25 includes a microcomputer and a memory. In this memory, the signal level of the DC voltage signal supplied (applied) from the control signal input unit 21, the color temperature that can be calculated backward from this signal level, and the chromaticity coordinates of the light color of the illumination light corresponding to the color temperature. _(x 0, _{y 0)} and the respective light emitting elements 3R corresponding to the chromaticity coordinates, 3G, 3B of the light amount _{Y R,} Y G, and the ratio of _{Y B,} the light-emitting elements 3R, 3G, 3B of the light amount _Y R, A conversion table that defines the relationship between Y _G and Y _B is stored.

  In the microcomputer, the drive signal conversion unit 25 supplies the DC voltage signal supplied (applied) from the control signal input unit 21 based on the conversion table stored in the memory to the red LED drive unit 27R, the green LED drive unit 27G, It converts into the drive signal which should be given to the blue LED drive part 27B. The drive signal converter 25 outputs drive signals for the red LED drive unit 27R, the green LED drive unit 27G, and the blue LED drive unit 27B to the red LED drive unit 27R, the green LED drive unit 27G, and the blue LED drive unit 27B, respectively. To do.

The red LED drive unit 27R turns on the light emitting element 3R configured by, for example, a red LED in accordance with the drive signal from the drive signal conversion unit 25.
The green LED drive unit 27G turns on the light emitting element 3G configured by, for example, a green LED in accordance with the drive signal from the drive signal conversion unit 25.
In response to the drive signal from the drive signal conversion unit 25, the blue LED drive unit 27B turns on the light emitting element 3B configured by, for example, a blue LED.

  Here, the configuration of the red LED driving unit 27R, the green LED driving unit 27G, and the blue LED driving unit 27B will be described with reference to FIG. As shown in FIG. 1C, the red LED drive unit 27R, the green LED drive unit 27G, and the blue LED drive unit 27B all have a common configuration. Therefore, in order to avoid redundant description, the red LED drive unit 27R is used. An example will be described.

  The red LED driving unit 27R shown in FIG. 1C includes a current limiting resistor R inserted between the output terminal on the high potential side of the AC / DC converting unit 23 and the anode of the light emitting element 3R, and the light emitting element 3R. A switching element Q1 configured using an FET (Field Effect Transistor) having a source terminal connected to the cathode and a drain terminal connected to the output terminal (GND: ground) on the low potential side of the AC / DC converter 23; A waveform shaping circuit that shapes the drive signal output from the drive signal conversion unit 25.

  In FIG. 1C, the waveform shaping circuit has a PNP bipolar structure in which, for example, the collector terminal is connected to the output terminal on the high potential side of the AC / DC converter 23 and the emitter terminal is connected to the gate terminal of the switching element Q1. A transistor Tr1 and an NPN bipolar transistor Tr2 whose collector terminal is connected to the gate terminal of the switching element Q1 and whose emitter terminal is connected to the output terminal (GND: ground) on the low potential side of the AC / DC converter 23. Including.

  The waveform shaping circuit shapes the drive signal input to the base terminals of the two bipolar transistors Tr1 and Tr2 connected in parallel, and outputs the drive signal after waveform shaping to the gate terminal of the switching element Q1. Here, the drive signal conversion unit 25 outputs a drive signal of a rectangular wave signal having a constant cycle with a variable on-duty ratio, so that the red LED drive unit 27R, the green LED drive unit 27G, and the blue LED drive unit 27B. Each switching element Q1 is controlled by PWM (Pulse Width Modulation) to adjust the amount of power supplied to each light emitting element 3G, 3R, 3B.

  The lighting controller 1 will be described with reference to FIG. FIG. 2A is an enlarged explanatory view of the illumination controller 1 shown in FIG. FIG. 2B is a block diagram simply showing an example of the internal configuration of the controller unit SPK1 shown in FIG.

  The illumination controller 1 includes an illumination light source (for example, an illumination light source 3-1) having a plurality of light emitting elements (red LED 3R, green LED 3G, and blue LED 3B) that emit light of different colors (for example, red, green, and blue). Based on the relationship between the color temperature and illuminance of predetermined light described later (see FIG. 3), the color temperature and illuminance of light emitted by the plurality of light emitting elements are adjusted.

  Further, the lighting controller 1 adjusts the color temperature and illuminance of light to increase or decrease continuously in response to a long press operation from the outside (for example, a person), and responds to a single press operation from the outside (for example, a person). Then, the color temperature and illuminance of light are adjusted so as to increase or decrease discretely.

  The illumination controller 1 shown in FIG. 2 (A) has a housing 10 constituted by, for example, a main body C11 and a lid C13 of a synthetic resin molded product. The lid C13 of the housing 10 can be opened and closed with respect to the main body C11 via a hinge (not shown). FIG. 2A shows a state in which the lid C13 is open. On the surface of the main body C11, a main power switch MS, a collective power switch MP, five controller units SPK1, SPK2, SPK3, SPK4, SPK5, and five power switches RS1, RS2, RS3, RS4 RS5 is provided. On the back surface of the lid C13, a collective power switch window WP corresponding to the collective power switch MP and power switch windows WS1, WS2 corresponding to the power switches RS1, RS2, RS3, RS4, RS5 of each controller unit are provided. , WS3, WS4, WS5 are arranged.

  Since the configuration of each controller unit SPK1, SPK2, SPK3, SPK4, SPK5 as an example of the operation unit is the same, the controller unit SPK1 will be described as an example with reference to FIG.

  The controller unit SPK1 shown in FIG. 2B includes an adjustment switch AD1, a variable resistor VR, an A / D converter 11, a memory 13, a control signal generation unit 15, an LED lighting control unit 17, It includes five LED lamps LS1, LS2, LS3, LS4, and LS5. In the controller unit SPK1, an adjustment switch AD1 and five LED lamps LS1, LS2, LS3, LS4, and LS5 are disposed on the surface of the main body C11. In each controller unit, the number of LED lamps is five as an example, but is not limited to five. Similarly, in the lighting controller 1, the number of controller units is five as an example, but is not limited to five.

  The power switch RS1 is configured by using, for example, a tumbler switch or a push button switch, and opens and closes a power supply path from the AC power supply AC to the power supply unit 2-1, depending on whether the power switch RS1 is on or off. Since the operations of the other power switches RS2, RS3, RS4, and RS5 are the same as those of the power switch RS1, the description thereof is omitted. The power switch window WS1 is provided corresponding to the power switch RS1 so that the power switch RS1 protrudes and can be operated even when the lid C13 is closed to the main body C11. The power switch windows WS2, WS3. WS4. Since WS5 is the same as the power switch window WS1, description thereof is omitted.

  The main power switch MS turns the lighting fixture 5 on or off. The collective power switch MP turns on or off the power of all or some of the illumination light sources. The power switch RS1 turns on or off the power of the illumination light source 3-1 corresponding to the controller unit SPK1. For example, when five illumination light sources are provided, that is, when n = 5 in FIG. 1A, the controller units SPK1 to SPK5 are illumination light sources 3-1 to 3-n (n = 5). It is provided corresponding to.

  Similarly to the power switch window WS1, the collective power switch window WP is connected to the power switch RS1 so that the collective power switch MP protrudes and can be operated even when the lid C13 is closed to the main body C11. Correspondingly provided.

  The adjustment switch AD1 is configured using, for example, a seesaw switch, and accepts a human long-press operation or single-press operation. An operation amount to the adjustment switch AD1, that is, an on-duty ratio of a control signal described later corresponds to the color temperature and illuminance of the illumination light emitted from the illumination light source 3-1. Further, the color temperature and the illuminance of the illumination light emitted from the illumination light source 3-1 are changed by a long press operation or a single press operation to the adjustment switch AD1 (see FIGS. 3 and 4).

  The resistance value of the variable resistor VR is changed by a long press operation or a single press operation to the adjustment switch AD1. The A / D converter 11 performs A / D conversion on the resistance value of the variable resistor VR and outputs it to the control signal generation unit 15. The control signal generation unit 15 generates a control signal having an on-duty ratio corresponding to the resistance value converted into a digital value by the A / D converter 11, and outputs the generated control signal to the power supply unit 2-1. . This control signal is a signal for the power supply unit 2-1 to change the color temperature and illuminance of the illumination light emitted from the illumination light source 3-1.

  The control signal generation unit 15 indicates the illuminance or the illuminance range of the illumination light emitted from the illumination light source 3-1, according to the generated control signal, and the LED lamps LS1, LS2, LS3, LS4, and LS5. One of the lighting instructions is output to the LED lighting control unit 17. The LED lighting control unit 17 turns on one corresponding LED lamp in response to a lighting instruction from the control signal generation unit 15. The relationship between the LED lamp and the illuminance of the illumination light will be described later with reference to FIG.

  Next, the illumination light source 3-1 will be exemplified, and an example in which the color temperature and illuminance of the illumination light from the illumination light source 3-1 are changed according to the operation of the illumination controller 1 to the controller unit SPK1 will be described with reference to FIGS. This will be described with reference to FIG.

  FIG. 3 is an explanatory diagram illustrating an example of changes in the color temperature and illuminance of light from the illumination light source 3-1 according to the operation of the illumination controller 1 of the present embodiment. FIG. 4 is an explanatory diagram illustrating an example of changes in the color temperature and illuminance of light from the illumination light source 3-1 in response to a long press operation and a single press operation of the adjustment switch AD <b> 1.

  The horizontal axis of FIG. 3 shows the color temperature of the illumination light from the illumination light source 3-1, for example, and is in the range of about 2200K to 5000K. The vertical axis | shaft of FIG. 3 shows the illumination intensity (brightness) of the illumination light from the illumination light source 3-1, for example, and is the range of 0% to 100%. A curve CRV shown in FIG. 3 is an example of a curve representing the relationship between the color temperature of light that gives a comfortable impression to a person and the illuminance.

  In the present embodiment, the illumination controller 1 changes the color temperature and illuminance of the illumination light from the illumination light source 3-1 along the curve CRV in accordance with an operation to the illumination controller 1, as shown in FIG. . That is, the power supply unit 2-1 changes the color temperature and illuminance of the illumination light from the illumination light source 3-1 along the curve CRV according to the control signal output from the illumination controller 1.

  For example, it is assumed that the current color temperature and illuminance state of the illumination light source 3-1 is the position P1 shown in FIG. 3, that is, (color temperature, illuminance) = (2500K, 47%). In this case, the illumination controller 1 turns on the LED lamp LS1 to indicate that illumination light of (color temperature, illuminance) corresponding to the position P1 is emitted.

  First, when a long press operation is performed on the upper side or the lower side of the adjustment switch AD1 of the controller unit SPK1 of the illumination controller 1, the illumination controller 1 displays the color temperature and illuminance states of the illumination light source 3-1 in FIG. A control signal for changing so as to continuously increase or decrease along the curve CRV shown is generated and output to the power supply unit 2-1. Thereby, the illumination light source 3-1 can radiate illumination light whose (color temperature, illuminance) is continuously increased or decreased along the curve CRV shown in FIG.

  Next, when a single press operation is performed on the upper side of the adjustment switch AD1 of the controller unit SPK1 of the illumination controller 1, the illumination controller 1 sets the color temperature and illuminance states of the illumination light source 3-1 in FIG. A control signal for changing to the indicated position P2, that is, (color temperature, illuminance) = (2700K, 61%) is generated and output to the power supply unit 2-1. Thereby, the illumination light source 3-1 can radiate illumination light of (color temperature, illuminance) = (2700K, 61%). Further, the illumination controller 1 indicates that illumination light of (color temperature, illuminance) corresponding to the changed position P2 is radiated in response to a single press operation on the upper side of the adjustment switch AD1. Then, the LED lamp LS2 is turned on.

  Subsequently, when a single press operation is performed on the upper side of the adjustment switch AD1, the illumination controller 1 changes the color temperature and illuminance state of the illumination light source 3-1 to a position P3 shown in FIG. A control signal for changing to (temperature, illuminance) = (3500K, 80%) is generated and output to the power supply unit 2-1. Thereby, the illumination light source 3-1 can emit illumination light of (color temperature, illuminance) = (3500 K, 80%). Further, the illumination controller 1 indicates that illumination light of (color temperature, illuminance) corresponding to the changed position P3 is emitted in response to a single press operation on the upper side of the adjustment switch AD1. Then, the LED lamp LS3 is turned on.

  On the other hand, when a single press operation is performed on the lower side of the adjustment switch AD1, the illumination controller 1 changes the color temperature and illuminance state of the illumination light source 3-1 to the position P1 shown in FIG. A control signal for changing to (temperature, illuminance) = (2500 K, 47%) is generated and output to the power supply unit 2-1. Thereby, the illumination light source 3-1 can radiate the illumination light of (color temperature, illuminance) = (2500K, 47%). Furthermore, the illumination controller 1 indicates that illumination light of (color temperature, illuminance) corresponding to the changed position P1 is radiated in response to a single press operation on the lower side of the adjustment switch AD1. Therefore, the LED lamp LS1 is turned on.

  Similarly, when a single push operation is performed once on the upper side or the lower side of the adjustment switch AD1, the illumination controller 1 changes the current color temperature and illuminance state of the illumination light source 3-1 in FIG. A control signal for changing to (color temperature, illuminance) corresponding to the adjacent position is generated and output to the power supply unit 2-1. Thereby, the illumination light source 3-1 can radiate illumination light of (color temperature, illuminance) corresponding to the position P1, position P2, position P3, position P4, and position P5 provided discretely. Furthermore, the illumination controller 1 emits illumination light of (color temperature, illuminance) corresponding to the changed position P1 in response to a single press operation on the upper side or the lower side of the adjustment switch AD1. In order to indicate, the corresponding LED lamp is turned on.

  In the present embodiment, (color temperature, illuminance) = (2500K, 47%) corresponding to position P1 shown in FIG. 3, (color temperature, illuminance) = (2700K, 61%) corresponding to position P2, and position P3. Corresponding (color temperature, illuminance) = (3500K, 80%), corresponding to position P4 (color temperature, illuminance) = (4500K, 93%), corresponding to position P5 (color temperature, illuminance) = (5000K, 100%). These discrete values of (color temperature, illuminance) are positions on the curve CRV representing the relationship between the color temperature and illuminance of light that gives a comfortable impression to people, and are defined in advance as positions on the curve CRV. It is an example of a recommended value or a representative value.

  In addition, at a color temperature in the range from 2500K corresponding to the position P1 to 2700K corresponding to the position P2, the illumination light is a light bulb color, and it is said that the color is reddish and moist, giving the person relaxation and calmness. Yes. At a color temperature around 3500K corresponding to the position P3, the illumination light is said to be warm white, giving people relaxation and vitality. Furthermore, at a color temperature in the range from 4500K corresponding to the position P4 to 5000K corresponding to the position P5, it is said that the illumination light is day white and has a whitish refreshing color, which gives the person a vibrancy.

  FIG. 5 is a diagram illustrating an example of an indoor room RM to which the lighting controller 1 and the lighting fixture 5 are attached. The lighting fixture 5 is not limited to the case where the plurality of illumination light sources 3-1 to 3-5 are provided, and only one illumination light source (for example, the illumination light source 3-1) may be provided. In FIG. 5, the illumination light sources 3-1 to 3-3 are provided in, for example, a downlight type illumination fixture attached to the ceiling surface of the room RM. In FIG. 5, the illumination light sources 3-4 and 3-5 are provided, for example, in a bracket-type lighting fixture attached to the wall surface of the room RM. In addition, the installation position of each illumination light source is not limited to the ceiling surface or wall surface of the room RM.

  As described above, in the present embodiment, the illumination controller 1 changes the color temperature and the illuminance of the illumination light from the illumination light source (for example, the illumination light source 3-1) so as to increase or decrease discretely according to the single press operation. In addition, the illumination controller 1 converts the color temperature and illuminance of the illumination light from the illumination light source 3-1 so as to continuously increase or decrease in response to the long press operation. Thereby, the illumination controller 1 can easily adjust the color temperature and the illuminance of the illumination light over a wide range of the color temperature of the illumination light from the illumination light source by a simple operation of a long press operation or a single press operation. it can.

  The discrete values of the color temperature and the illuminance of the illumination light according to the single press operation are positions on the curve CRV representing the relationship between the color temperature and the illuminance of the light that gives a comfortable impression to the person. Thereby, the illumination controller 1 can radiate the illumination light which gives a comfortable impression to a person over the wide range of the color temperature of the illumination light from an illumination light source by single press operation.

  Moreover, the color temperature of the illumination light according to single-press operation is each color temperature corresponding to a light bulb color, warm white, and daylight white. Thereby, the illumination controller 1 can radiate the illumination light which gives a comfortable impression according to a person's mood by single press operation.

(Modification of this embodiment)
Next, a modified example (hereinafter referred to as “first modified example”) of the above-described embodiment will be described with reference to FIG.

  FIG. 6A is an explanatory diagram illustrating an example of a change in color temperature and illuminance of illumination light from the lighting fixture 5 in response to an operation of the illumination controller 1 of the first modification. FIG. 6B is a diagram illustrating an example of the controller unit SPK1a of the illumination controller 1 according to the first modification. FIG. 6C is a diagram illustrating another example of the controller unit SPK1b of the illumination controller 1 according to the first modification.

  A curve CRV1 shown in FIG. 6A is the same as the curve CRV shown in FIG. In the first modification, when a person operates the adjustment switch AD2 of the controller unit SPK1a or the adjustment switch AD3 of the controller unit SPK1b, the illumination controller 1 has colors corresponding to the positions P1 to P5 shown in FIG. Can change temperature and illuminance. In FIG. 6A, the illumination controller 1 adjusts so as to decrease the illuminance corresponding to the position P2, for example, in response to an operation on the adjustment switch AD2 or AD3.

  For example, when the upper and lower sides of the adjustment switch AD2 are pressed, the illumination controller 1 of the first modification changes the illuminance corresponding to the positions P1 to P5, and the left and right sides of the adjustment switch AD2 are pressed. The color temperature corresponding to the positions P1 to P5 is changed. Since the configurations and operations of the controller units SPK1a and 1b are the same as those in the above-described embodiment, the description thereof is omitted.

  Thus, in the above-described embodiment, the color temperature and the illuminance corresponding to the positions P1 to P5 on the curve CRV are fixed values. However, according to the first modification, the illumination controller 1 uses the adjustment switch AD2 or AD3. By pressing, the color temperature or illuminance can be easily adjusted.

  While various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, it is assumed that the current illuminance of the illumination light source 3-1 is 60, that is, the LED lamp LS2 is lit and a person is pressing and holding the adjustment switch AD1. Under this situation, the illumination controller 1 determines that the LED lamp when the illuminance of the illumination light from the illumination light source 3-1 exceeds 86, that is, when the LED lamp LS3 is turned on and the LED lamp LS4 is turned on. LS3 may be blinked. Or the illumination controller 1 may stop the increase in the illumination intensity of the illumination light from the illumination light source 3-1 for a fixed period, even if long press operation is made in the same condition. Thereby, the illumination controller 1 can make a person confirm the present condition easily even while the illumination intensity of the illumination light from the illumination light source 3-1 is rising continuously.

  In addition, in the lighting fixture 5 of this embodiment mentioned above, as a structure of the illumination light sources 3-1, ..., 3-n, for example, three color light emitting elements (for example, a red LED element, a blue LED element, and a green LED element) are used. Explained. As described below, as a second modification, two-color light-emitting elements (for example, an LED element with a color temperature of 2200K and an LED element with 8000K) may be used instead of the three-color light-emitting elements.

  FIG. 7A is a block diagram illustrating an overall configuration of a lighting fixture 5a according to a second modification. FIG. 7B is a block diagram illustrating an example of an internal configuration of the power supply unit 2-1a.

  The lighting fixture 5a shown in FIG. 7A includes a lighting controller 1, at least one illumination light source 3-1a,..., 3-na (n: an integer of 2 or more), and at least one power supply unit 2-1a, ..., including 2-na. 7A and 7B is the same as the operation of each part of the lighting fixture 5 shown in FIG. 1A and the power supply units 2-1,..., 2-n shown in FIG. The same reference numerals are assigned to the components, description thereof is omitted or simplified, and different contents are described.

  Since the illumination light sources 3-1a,..., 3-na all have the same configuration, the illumination light source 3-1a shown in FIG.

  The illumination light source 3-1a includes light emitting elements 3K and 3L that emit light different from each other. The light emitting elements 3K and 3L of the illumination light source 3-1a of the second modified example are configured using, for example, LEDs (Light Emission Diode) or semiconductor light emitting elements (for example, organic EL elements).

  Specifically, the light emitting element 3K and the light emitting element 3L have different color temperatures. For example, the light emitting element 3K emits light having a color temperature of 2200K, and the light emitting element 3L emits light having a color temperature of 8000K. Moreover, the color temperature of each light emitting element can be set according to the change of the kind or component of the fluorescent substance apply | coated, and the kind or component of a fluorescent substance is not specifically limited.

Here, the chromaticity coordinates of the light colors of the light emitting elements 3K and 3L of the respective colors are (x ₁ , y ₁ ) and (x ₂ , y ₂ ), respectively, and the light amounts (illuminance) of the light emitting elements 3K and 3L of the respective colors are If Y ₁ and Y ₂ , respectively, the chromaticity coordinates (x ₀ , y ₀ ) and the light amount Y ₀ of the light color of the illumination light that is the mixed color light are expressed by Equation (2).

Since each light emitting element 3K, 3L does not change the light color, that is, the wavelength or color temperature of the light even if each light quantity Y ₁ , Y ₂ is changed, the light quantity Y ₁ , Y with respect to the light quantity Y ₀ of each light emitting element 3K, 3L. By changing the ratio of ₂ , the light color (color temperature) of the illumination light obtained as a mixed color can be changed. Further, if the light amounts Y ₁ and Y ₂ are changed while maintaining the ratio of the light amounts Y ₁ and Y ₂ of the light emitting elements 3K and 3L, the light amount (illuminance) of the illumination light in the same light color (color temperature). Can be changed. Therefore, in the second modification, the light emitting elements 3K and 3L change the light amounts Y ₁ and Y ₂ and further change the ratio of the light amounts Y ₁ and Y ₂ to the light amounts Y ₀ of the light emitting elements 3K and 3L. By doing so, the light color (color temperature) of the illumination light obtained as a mixed color can be changed.

Further, the light amounts Y ₁ and Y ₂ of the light emitting elements 3K and 3L are determined by the power supply amount. For this reason, for example, with respect to the illumination light source 3-1 a, the light color and amount of illumination light can be adjusted by increasing or decreasing the amount of power supplied from the power supply unit 2-1 a to the light emitting elements 3 </ b> K and 3 </ b> L. Here, the light color of the illumination light is determined by determining the light amounts Y ₁ and Y ₂ of the light emitting elements 3K and 3L of the illumination light source 3-1a so that the chromaticity of the illumination light changes substantially along the black body locus. Can be specified by the color temperature.

  Since the power supply units 2-1a,..., 2-na as an example of the power supply unit all have the same configuration, the power supply unit 2-1a shown in FIG. To explain.

  A power supply unit 2-1a shown in FIG. 7B includes a control signal input unit 21, an AC / DC conversion unit 23, a drive signal conversion unit 25, a first light emitting element driving unit 27K, and a second light emitting element driving. Part 27L.

The drive signal conversion unit 25 includes a microcomputer and a memory. In this memory, the signal level of the DC voltage signal supplied (applied) from the control signal input unit 21, the color temperature that can be calculated backward from this signal level, and the chromaticity coordinates of the light color of the illumination light corresponding to the color temperature. _(x 0, _{y 0)} and, defining the respective light emitting elements 3K corresponding to the chromaticity coordinates, and the ratio of the amount _Y 1, _{Y 2} of 3L, each light emitting element 3K, the relationship between the amount _Y 1, _{Y 2} of 3L The converted conversion table is stored.

  In the microcomputer, the drive signal conversion unit 25 supplies the DC voltage signal supplied (applied) from the control signal input unit 21 based on the conversion table stored in the memory to the first light emitting element drive unit 27K and the second light emitting element. It converts into the drive signal which should be given to the drive part 27L. The drive signal converter 25 outputs drive signals for the first light emitting element drive unit 27K and the second light emitting element drive unit 27L to the first light emitting element drive unit 27K and the second light emitting element drive unit 27L, respectively.

The first light emitting element drive unit 27K turns on the light emitting element 3K that emits light having a color temperature of 2200K, for example, in accordance with the drive signal from the drive signal conversion unit 25.
The second light emitting element driving unit 27L turns on the light emitting element 3L that emits light having a color temperature of 8000 K, for example, in accordance with the driving signal from the driving signal converting unit 25.

  The configurations of the first light emitting element driving unit 27K and the second light emitting element driving unit 27L are the same as the red LED driving unit 27R, the green LED driving unit 27G, and the blue LED driving unit 27B shown in FIG. The description is omitted.

  Therefore, the lighting fixture 5a of the second modified example has an illumination light source 3-1a,..., 3- in which the number of light emitting elements is one less than the light emitting elements of each illumination light source in the lighting fixture 5 of the present embodiment described above. Even when na is used, the same effect as that of the lighting fixture 5 of the present embodiment described above can be obtained.

  INDUSTRIAL APPLICABILITY The present invention is useful as a lighting controller that adjusts the color temperature and illuminance of illumination light over a wide range of color temperatures by a simple operation, and a lighting fixture including the lighting controller.

DESCRIPTION OF SYMBOLS 1 Lighting controller 2-1, 2-n Power supply unit 3-1, 3-n Lighting light source 5 Lighting fixture 3R Red LED
3G green LED
3B Blue LED
21 Control signal input unit 23 AC / DC conversion unit 25 Drive signal conversion unit 27R Red LED drive unit 27G Green LED drive unit 27B Blue LED drive unit AD1, AD2, AD3, AD4, AD5 Adjustment switch (operation unit)
LS1, LS2, LS3, LS4, LS5 LED lamps RS1, RS2, RS3, RS4, RS5 Power switch SPK1, SPK2, SPK3, SPK4, SPK5 Controller unit WS1, WS2, WS3, WS4, WS5 Power switch window

Claims (5)

An illumination light source having a plurality of light emitting elements that emit light of different colors emits the plurality of light emitting elements based on a combination of a plurality of color temperatures and illuminances that satisfy a relationship between the color temperature and illuminance of a predetermined light. an operation unit for adjusting the color temperature and intensity of light,
A plurality of display portions provided corresponding to each of the combinations of the plurality of color temperatures and illuminances ,
The operation unit is
In response to a long press operation from outside, the color temperature and illuminance of the light are adjusted to increase or decrease continuously,
The color temperature and illuminance of the light are adjusted to be increased or decreased discretely according to a single press operation from the outside, and the combination of the plurality of color temperatures and illuminances selected according to the single press operation Turn on any of the display units corresponding to any of them ,
Lighting controller. The lighting controller according to claim 1,
The discrete values of the color temperature and illuminance of the light according to the single press operation are recommended values that satisfy the relationship between the color temperature and illuminance of the predetermined light.
Lighting controller. The lighting controller according to claim 1,
The relationship between the color temperature and illuminance of the predetermined light is a relationship between the color temperature and illuminance of light that gives a comfortable impression to a person.
Lighting controller. The lighting controller according to claim 1,
The color temperature of the predetermined light is a color temperature corresponding to a light bulb color, warm white, daylight white,
Lighting controller. The lighting controller according to any one of claims 1 to 4,
A power source unit that emits light of a color temperature and illuminance corresponding to the operation from the illumination light source in response to an operation to the illumination controller,
lighting equipment.

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