JPH1050135A - Luminaire with dimmer and control method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To respond to the environments of an interior by changing the output of a pulse control circuit based on measurement data of an illumination space and changing color temperature responding to the measurement data. SOLUTION: The room temperature is detected by a room temperature sensor 6 installed near a lower end of a lamp shade. The sensor 6 encodes the detected room temperature into an information signal and transmits the signal to an electronic controlling circuit part 3. Receiving the signal, the control circuit part 3 has an access to a memory 7. A data table in which relating information of the room temperature and information relevant to obtain color temperature proper for the temperature are stored is built in the memory 7. As a result of the access to the memory 7, the signal to obtain the color temperature suitable for the room temperature is taken out and transmitted to the pulse control circuit 8. By the signal, the circuit 8 is driven and in the case of a variable color lamp 2 which is turned by discharge voltage, pulses relevant to the voltage to apply are applied to the variable color lamp 2 and the color temperature of the variable color lamp 2 is changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimming type lighting apparatus corresponding to an environment of a space to be illuminated indoors and a control method thereof.

[0002]

2. Description of the Related Art Hitherto, indoor lighting fixtures have become widespread as those which emit light having a constant color temperature and a constant light flux.

On the other hand, in fields such as theater lighting and photography,
Extremely diverse lighting effects are required, and with a great deal of know-how and sense from lighting designers and lighting technicians,
The lighting was suitable for the occasion.

[0004] Recently, with the advance of the development of lamps, variable color lamps capable of changing the color temperature by various principles and methods are being developed. For example, variable color lamps are disclosed in JP-A-7-282778, JP-A-7-85843, JP-A-5-135744, and the like.
Proceedings of the 254th Annual Meeting of the Japan Society of Phosphors, 25 pages (March 1995
Mon) discloses a "pulse lighting variable color fluorescent lamp".

[0005]

At present, when a variable color lamp is applied to indoor lighting, there is a problem that a suitable automatic control method has not been established.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a dimmable lighting apparatus and a control method for the dimmable lighting apparatus that respond to indoor environments.

[0007]

According to the present invention, there is provided a dimmable lighting apparatus comprising: a sensor for measuring data of a space to be illuminated; a pulse control circuit for changing an output based on the measured data; Is a dimming type lighting apparatus including a variable color lamp that changes a color temperature in accordance with the color temperature.

In the dimming type lighting apparatus of the present invention, the sensor is a room temperature sensor for detecting a room temperature, and the pulse control circuit is a control circuit for changing a color temperature of a lamp according to a signal from the room temperature sensor. As the room temperature sensor, it is preferable to detect a temperature reflecting the sensible temperature of the indoor space. Therefore, a temperature sensor that can mainly detect the radiation temperature in the room is preferable.

In a dimming type lighting apparatus according to another aspect of the present invention, the sensors are a room temperature sensor for detecting room temperature and an optical sensor for detecting mixed light of external light and the variable color lamp light. The circuit is a control circuit that changes the color temperature of the lamp according to the signal from the room temperature sensor and the signal from the light sensor. The optical sensor is an optical sensor capable of detecting mixed light of external light and the variable color lamp light of the appliance itself.

[0010] In a dimming type lighting apparatus according to another aspect of the present invention, the sensor is an acoustic sensor for detecting room sound, and the pulse control circuit controls the color temperature of the lamp based on a signal from the acoustic sensor. Circuit. As the acoustic sensor, a microphone suitable for detecting a human voice or a noise is desirable.

There is a variable color fluorescent lamp as a variable color lamp used for the dimming type lighting equipment. As the variable color fluorescent lamp, (1) a lamp containing neon and mercury (hereinafter, Ne + H)
(2) Variable color fluorescent lamp using a combination with another light source (for example, EL (using ZnS: Mn or the like)) (3) A variable-color fluorescent lamp utilizing the following difference in the fluorescent characteristics of the phosphor is possible. Use of the difference in the fluorescent characteristics of the variable color fluorescent lamp includes: (a) use of the difference in afterglow characteristics (b) use of the difference in luminance saturation characteristics (c) use of the difference in temperature quenching characteristics (by using a heater) and so on. Any of these can be changed to a variable color by controlling the lighting by a pulse control circuit.

A control method according to the present invention includes the steps of measuring spatial data with a sensor, changing the output of a pulse control circuit based on the measured data, and changing the color temperature of the variable color lamp based on the output of the pulse control circuit. Controlling the dimming type lighting apparatus.

According to one control method of the present invention, the sensor is a room temperature sensor, the step of measuring room temperature by the room temperature sensor, the step of changing the output of the pulse control circuit based on the measured room temperature data, the pulse control circuit Controlling the indoor lighting by changing the color temperature of the variable color lamp according to the output of the dimming type lamp.

[0014] In a control method according to another aspect of the present invention, the sensors are a room temperature sensor and an optical sensor, and the room temperature is measured by the room temperature sensor, and the brightness and color temperature of the illumination space are measured by the optical sensor. The step of changing the output of the pulse control circuit based on the measured room temperature, brightness and color temperature data of the illumination space, and controlling the indoor lighting by changing the color temperature and luminous flux of the variable color lamp by the output of the pulse control circuit And controlling the dimming type lighting apparatus.

In a control method according to another aspect of the present invention, the sensor is an acoustic sensor, the step of measuring room sound by the acoustic sensor, and the step of changing the output of the pulse control circuit based on the measured data of the room sound. And controlling the indoor lighting by changing the color temperature of the variable color lamp according to the output of the pulse control circuit.

By using the dimming type lighting apparatus and the dimming type lighting apparatus control method of the present invention, the color temperature of the variable color lamp or the color temperature and brightness can be adjusted to the color temperature suitable for the situation of the space to be illuminated. Or it automatically changes to color temperature and brightness. Thus, the dimmable lighting fixture and its control method can automatically provide people with a comfortable environment suitable for the situation.

It is easy to apply microcomputer control incorporating various software to the specific control of the dimming type lighting apparatus of the present invention.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. The dimmable lighting apparatus of the present invention is provided with the room temperature sensor 6 at a position where the temperature of the lamp does not become excessively high and at a position of average brightness, for example, near the lower end of the lamp shade 4. A variable color lamp 2 is provided therein. The electronic control circuit section 3 having a built-in pulse control circuit 8 for performing pulse control based on a signal from the room temperature sensor 6 is provided in a heat shield box on the lamp shade 4 which does not become excessively hot. As the variable color lamp 2, for example, 2
A 0 W straight tube type variable color lamp or the like can be used.

In order to construct a variable color lamp, if a plurality of arc tubes are provided in the lamp, the light can be changed to any light color by switching the arc tubes. Changing the color temperature of light is the most fundamental way. In a discharge lamp such as a fluorescent lamp or a high-intensity discharge lamp, the color temperature can be changed by the following various elements constituting the lamp. 1) Luminescent gas (gas type, gas ratio, temperature, tube diameter, current, etc.) 2) Discharge electron energy (discharge starting voltage, distribution, height, etc.) 3) Phosphor (excitation characteristics, luminance saturation characteristics, afterglow characteristics, 4) Lighting control method (applied frequency, pulse control, polarity, etc.) The variable color lamp used in the present invention is constituted by a combination of the above elements 1) to 4), among which 4) It is preferable to use mainly the pulse lighting control method among the above lighting control methods. As an example of a variable color by pulse control, there is an example of a variable color Hg / He gas discharge lamp whose lighting is controlled by various pulse waveforms such as a triangular wave and a rectangular wave.
Journal of the Illuminating Engineering Institute of Japan, Vol. 79, No. 12, Item 735 (1995)
Year), along with various variable color lamps. These various methods are used for the variable color lamp of the present invention.

A method for controlling the color temperature of the variable color lamp of the dimming type lighting apparatus according to the present invention will be described with reference to FIG. The room temperature is detected by the room temperature sensor 6. Further, the room temperature sensor 6 encodes a signal using the detected room temperature as information. As the signal, for example, a 16-bit binary signal in which the first few bits are used as check bits and the remaining bits have room temperature information can be used. The encoded signal is transmitted to the electronic control circuit.

The electronic control circuit accesses the memory 7 when a signal is sent. The memory 7 has a built-in table in which the relationship between the room temperature and information for obtaining a color temperature suitable for the room temperature is converted into data. The information for obtaining the color temperature is the relationship between the applied voltage and the color temperature in the case of a variable color lamp such as a Ne + Hg lamp due to a change in discharge voltage. As a result of accessing the memory 7, a signal for obtaining a suitable color temperature for the room temperature is extracted and transmitted to the pulse control circuit 8. With this signal, the pulse control circuit 8
Is operated to apply a pulse to the variable color lamp in the case of a variable color lamp using a discharge voltage such as a Ne + Hg lamp, for example, to change the color temperature of the variable color lamp. The color temperature of another type of variable color fluorescent lamp can be controlled by the pulse waveform, pulse voltage, pulse width, duty ratio and pulse frequency applied to the variable color fluorescent lamp.

The dimmable lighting fixture was installed in a laboratory living room where the room temperature could be changed, and an experiment was conducted. As a result, when the room temperature was 30 ° C., illumination was performed at a color temperature of 7000 K, and when the room temperature was 17 ° C., illumination was performed at a color temperature of 3000 K.

According to the votes of a large number of people who attended this experiment, the effect of the variable color lighting makes the person feel cooler than usual 30 ° C. when the room temperature is 30 ° C., and 17% when the room temperature is 17 ° C. The result was that it felt warmer than ° C.

Another embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the dimming type lighting apparatus performs pulse control based on signals from the room temperature sensor 6, the light sensor 9 provided near the lower end of the lamp shade 4, the variable color lamp 2, the room temperature sensor 6 and the light sensor 9. The electronic control circuit unit 3 has a built-in pulse control circuit 8.
As shown in FIGS. 1 and 2, the optical sensor 9 has the optical sensor 9 incorporated in a part of the lamp shade 4 and the transparent fixture 5.
It is fixed at. The light sensor 9 has a function of receiving a mixed light of the external light (A) and the variable color fluorescent lamp light (B) and detecting a color temperature and brightness.

A method for controlling the color temperature of the variable color lamp of the dimmable lighting apparatus will be described with reference to FIG. The room temperature sensor 6 detects the room temperature, and the optical sensor 9 detects the color temperature and brightness of the light of both the variable color lamp and the external light. Further, encoding is performed on a signal using the detected room temperature, color temperature, and brightness as information. As a signal, for example, the first few bits are check bits, the next few bits are room temperature information, the next few bits are color temperature information, and the remaining bits are 64 bits with brightness information. Can be used. The encoded signal is transmitted to the electronic control circuit.

The electronic control circuit accesses the memory 7 when a signal is sent. The memory 7 has a built-in table in which the relationship between the room temperature, the color temperature, and the brightness, and the relationship between the color temperature and the brightness suitable for them is stored. When the memory 7 is accessed, pattern matching is performed using the table, the color temperature and brightness of the lamp light suitable for the detected room temperature, color temperature and brightness are determined, and signals for obtaining these are taken out. It is transmitted to the control circuit 8. The pulse control circuit 8 is operated by this signal to change the color temperature and brightness of the variable color lamp in addition to the variable color lamp.

The lighting fixture was installed in an experimental living room having a window, and an experiment was conducted. As a result, illumination was performed at a room temperature of 30 ° C. at a luminous flux of 1400 lumens and a color temperature of 7000 K, and at room temperature of 17 ° C. during a rainy daytime, illumination was performed at a luminous flux of 800 lumens and a color temperature of 4000 K. According to a questionnaire by a large number of people who attended this experiment, due to the effect of changing the color temperature and light intensity of this lighting, it felt cooler and warmer at night at room temperature of 30 ° C, and at room temperature of 17 ° C.
In the rainy day, it felt warmer than 17 ° C.

Another embodiment of the present invention will be described. The dimmable lighting device of the present invention includes the acoustic sensors 10 and 20.
The configuration includes a W-tube variable color fluorescent lamp 2, an electronic control circuit unit 3 having a built-in pulse control circuit 8 for performing pulse control, and a lamp shade 4. As the acoustic sensor 10, an ultra-small microphone is used, and a recognition circuit controlled by a microcomputer incorporating software is provided, so that the atmosphere of the room can be recognized from the pattern of the room sound.

A method for controlling the color temperature of the variable color lamp of the dimmable lighting device will be described with reference to FIG. A room sound is detected by the acoustic sensor 10. Encoding is performed on a signal using the detected room sound as information. For example, as a signal, a 16-bit binarized signal in which the first few bits are used as check bits and the remaining bits carry information on room sound can be used. The encoded signal is transmitted to the electronic control circuit.

The electronic control circuit accesses the memory 7 when a signal is sent. The memory 7 has a built-in table in which the relationship between the type of room sound and the appropriate color temperature is patterned. When the memory 7 is accessed, pattern matching is performed using the table, the color temperature of the lamp suitable for the detected room sound is determined, a signal for obtaining these is taken out, and transmitted to the pulse control circuit 8. The pulse control circuit 8 is operated by this signal to change the color temperature and brightness of the variable color lamp in addition to the variable color lamp.

The lighting fixture was set up in a lounge in the company, a fun topic meeting was held, and an experiment was conducted. As a result, the color temperature of the variable color lamp changed to 3500K. The effects of the lighting's color temperature have intensified the topic of those who attended the experiment. In addition, as a result of conducting a similar experiment at an in-house academic research meeting site, the color temperature of the variable color lamp was changed to 7000K. The effect of the color temperature of the lighting increased the concentration of the people present at the venue and made the study group more meaningful.

In the experiments in each of the embodiments, the sensation of people changes depending on the color temperature and light intensity of the lighting.
ADVANTAGE OF THE INVENTION The dimmable lighting fixture of this invention and its control method can create the light environment suitable for the place. Therefore, the dimmable lighting device and the control method thereof according to the present invention can provide a comfortable environment for people.

[0033]

As described above, according to the present invention, a sensor,
By configuring a dimmable lighting device having a variable color lamp and a pulse control circuit, a dimmable lighting device corresponding to the environment of a space to be illuminated indoors and a control method thereof can be obtained.

With the dimmable lighting apparatus and the control method thereof, it is possible to provide people with a comfortable environment suitable for the place, and the industrial value is great.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a dimmable lighting device of the present invention.

FIG. 2 is a diagram illustrating an example of an optical sensor unit provided in the dimmable lighting device of the present invention.

FIG. 3 is a diagram showing an example of a method for controlling a dimmable lighting device of the present invention.

FIG. 4 is a diagram illustrating an example of a control method of the dimmable lighting device of the present invention.

FIG. 5 is a diagram illustrating an example of a method for controlling a dimmable lighting device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sensor 2 Variable color lamp 3 Electronic control circuit part incorporating pulse control circuit 4 Lamp shade 5 Jig 6 Room temperature sensor 7 Memory 8 Pulse control circuit 9 Optical sensor 10 Acoustic sensor

Claims (13)

[Claims] 1. A sensor for measuring data of a space to be illuminated, a pulse control circuit for changing an output based on the measurement data from the sensor, and a lighting device for turning on an output of the pulse control circuit to change a color temperature according to the measurement data. A dimmable lighting device equipped with a variable color lamp. 2. The dimmable illumination according to claim 1, wherein the sensor is a room temperature sensor that detects room temperature, and the pulse control circuit is a control circuit that changes a color temperature of a lamp according to a signal from the room temperature sensor. Appliances. 3. The sensor according to claim 1, wherein the sensor is a room temperature sensor for detecting room temperature, and an optical sensor for detecting mixed light of the external light and the variable color lamp light. The pulse control circuit includes a signal from the room temperature sensor and a signal from the optical sensor. The dimmable lighting apparatus according to claim 1, wherein the lighting circuit is a control circuit that changes a color temperature of a lamp according to a signal. 4. The dimming type according to claim 1, wherein the sensor is an acoustic sensor for detecting a room sound, and the pulse control circuit is a control circuit for changing a color temperature of a lamp according to a signal from the acoustic sensor. lighting equipment. 5. The dimmable lighting device according to claim 1, wherein the variable color lamp is a variable color fluorescent lamp. 6. A step of measuring spatial data by a sensor, a step of changing an output of a pulse control circuit based on the measured data, and a step of changing a color temperature of a variable color lamp by an output of the pulse control circuit. Control method of dimmable lighting equipment. 7. The sensor according to claim 1, wherein the sensor is a room temperature sensor, the room temperature is measured by the room temperature sensor, the output of the pulse control circuit is changed based on the measured room temperature data, and the variable color lamp is output by the pulse control circuit. 7. The method of controlling a dimmable lighting device according to claim 6, further comprising the step of: changing the color temperature of the lighting device and controlling indoor lighting. 8. The room temperature sensor and the optical sensor, wherein the room temperature sensor and the optical sensor measure room temperature, brightness and color temperature of an illumination space, and the measured room temperature, brightness and color of the illumination space. 7. The method according to claim 6, further comprising: changing the output of the pulse control circuit based on the temperature data; and controlling the indoor lighting by changing the color temperature and the luminous flux of the variable color lamp based on the output of the pulse control circuit.
3. The method for controlling a dimmable lighting device according to claim 1. 9. The method according to claim 9, wherein the sensor is an acoustic sensor, and a step of measuring room sound with the acoustic sensor, a step of changing an output of a pulse control circuit based on data of the type of the measured room sound, and an output of the pulse control circuit. The method according to claim 6, further comprising: changing the color temperature of the variable color lamp to control indoor lighting. 10. The control according to claim 1, wherein the color temperature of the lamp or the color temperature and the luminous flux are changed by changing the voltage of the output pulse of the pulse control circuit. Light type lighting equipment. 11. The control according to claim 6, wherein the color temperature of the lamp or the color temperature and the luminous flux are changed by changing the voltage of the output pulse of the pulse control circuit. Control method of optical lighting equipment. 12. The control according to claim 1, wherein the color temperature of the lamp or the color temperature and the luminous flux are changed by changing the waveform of the output pulse of the pulse control circuit. Light type lighting equipment. 13. The control according to claim 6, wherein the color temperature of the lamp or the color temperature and the luminous flux are changed by changing the waveform of the output pulse of the pulse control circuit. Control method of optical lighting equipment.