JPH0794146A - Lighting lamp, lighting fixture and lighting device and lighting environment system equipped with the lighting lamp and lighting fixture - Google Patents

Abstract

PURPOSE:To provide a lighting environment system capable of suitably changing color rendering properties, depending upon a situation or a place, and easily and dynamically changing lighting environment, while maintaining lighting color suitable for general lighting. CONSTITUTION:A lighting device is constituted of a lighting lamp having color temperature of 6500K with an emission spectrum concentrated on two wavelength zones of 450nm and 570nm, and another lighting lamp having color temperature of 6500K or the like with an emission spectrum concentrated on two wavelength zones of 490nm and 610nm, respectively in a visible wavelength zone between 380nm and 780nm, thereby controlling the actuation of the lighting lamps. According to this construction, a lighting environment system can be established, allowing a dynamic color change to be enjoyed with identical lighting color.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an illumination environment system, and more particularly, to an emission spectrum or a transmitted light spectrum and a reflected light spectrum.
The present invention relates to an illumination environment system that dynamically changes the color of a reflective object in an illumination environment while keeping the light color of illumination light constant by controlling an illumination lamp, a transmission plate, and a reflection plate that are concentrated on wavelengths.

[0002]

2. Description of the Related Art At present, illumination lamps can be mainly divided into incandescent lamps, fluorescent lamps and high-intensity discharge lamps. Among them, various types of fluorescent lamps have been developed because the type of fluorescent substance to be applied can be relatively freely changed according to the developer's intention. In particular, when the fluorescent lamps are classified according to the light emitting region of the fluorescent material, they can be divided into a broad band light emitting type fluorescent lamp, a narrow band light emitting type fluorescent lamp, and a three wavelength band light emitting type fluorescent lamp.

A broadband light emitting fluorescent lamp has a wavelength of about 480.
Calcium halophosphate phosphors activated with antimony and manganese, which emit a smooth continuous spectrum with relatively gentle peaks at nm and 575 nm, are mainly used to emit blue-green to green components at around 500 nm where the emission is insufficient. Around 60
It is a series of lamps that belong to a system in which the spectral distribution is smoothed by filling the red component of 0 nm or more with another phosphor or using a phosphor that emits light over a wider band.

The narrow band emission type fluorescent lamp uses a phosphor activated mainly by a rare earth element in which most of the emitted light is concentrated in a relatively narrow wavelength range. It is a lamp in which light emission is arranged with emphasis on a wavelength band in which a desired effect is most remarkable by using two or more kinds.

In recent years, a three-wavelength emission type fluorescent lamp has a high luminous efficiency and a color rendering index when white light is produced by combining three monochromatic lights having wavelengths of about 450 nm, 540 nm and 610 nm. Is known, and is a lamp realized as a fluorescent lamp using three types of narrow-band emission phosphors.

[0006]

On the other hand, it is theoretically possible to produce white light for an illumination lamp that emits light in two wavelength ranges, but it is not practical in terms of brightness efficiency and color rendering. Because it was judged, it was not commercialized as a lamp for general lighting. However, today, lighting lamps are becoming compact, and variable-light-type lighting fixtures constructed by combining monochromatic lamps are also on the market, and brightness and color rendering can be achieved with only a single lighting lamp. It is no longer necessary to fully meet the usage requirements.

It is generally recognized that a brighter and better color rendering lamp is a good illumination lamp, and a chromaticity region that cannot be theoretically perceived is positively created by illumination light applying metamerism. Almost no efforts were made to apply the lighting method.

[0008] Further, in each room of a general home or office, a pattern change is performed to change the mood and atmosphere.
There has never been the idea of changing the illumination light to change the pattern.

The present invention is intended to solve the above-mentioned problems. By controlling an illuminating device composed of a two-wavelength band emission type illuminating lamp which has not been manufactured up to now, the main illumination light color is changed to white light. The objective is to provide a lighting environment system that dynamically changes the lighting environment by actively applying metamerism while maintaining the above.

[0010]

In order to achieve the above object, the illumination environment system of the present invention theoretically designs a two-wavelength band emission type illumination lamp, a two-wavelength selective transmission plate and a reflection plate. By keeping the color of the main illumination light constant white light, and by using them in combination,
It functions as a lighting device that maintains the brightness and color rendering required for general lighting, and the lighting environment can be changed freely and easily by creating a chromaticity region that cannot be theoretically perceived by controlling the lighting conditions of the lighting device. Further, the illumination space is configured by a wall surface having a reflection surface having a wavelength-selective spectral reflectance, furniture, a curtain, or the like so that a dynamic change of the illumination environment can be realized.

[0011]

According to the present invention, with the above-described structure, while maintaining the light color suitable for general lighting, the color rendering property can be appropriately changed according to the situation or place, and the lighting environment can be changed easily and dynamically. An environmental system can be provided.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An illumination lamp according to an embodiment of the present invention will be described below with reference to the drawings. In the present invention, the same effect can be obtained not only by concentrating the emission spectrum of the illumination lamp on two wavelengths but also by concentrating the reflected light and transmitted light spectra on two wavelengths. That is, by designing the reflecting plate and the transmitting plate of the lighting fixture based on the theory described below, the same lighting effect as that of the lighting lamp can be obtained. Here, as one embodiment of the present invention, selection of two wavelengths necessary for the light color of the illumination lamp to be the same as the xy chromaticity of light of 6500 K which is defined as a standard light source will be described.

FIG. 1 shows the values of two kinds of two wavelengths selected so that the light color of the illumination light has the same chromaticity point as the daylight of 6500 K. On the chromaticity coordinates shown in FIG. 1, two intersections of each straight line drawn around the standard light D65 of the fluorescent lamp of each light color and the spectrum locus are two wavelength spectra to be selected. According to Fig. 1, one straight line and spectral locus is 450n
The chromaticity of m and the wavelength of 570 nm intersect, and the daylight color of 6500 K can be obtained by intensively emitting the wavelengths of 450 nm and 570 nm. The other line and the spectrum locus intersect at the chromaticity of wavelengths of 490 nm and 610 nm.
A daylight color of 00 K can be obtained by intensively emitting wavelengths of 490 nm and 610 nm.

2 and 3 are obtained from FIG. 1, respectively.
The spectral radiant energy distributions of two types of illumination lamps having a color temperature of 6500 K created based on two types of wavelengths are shown.
2 and 3, the horizontal axis represents wavelength and the vertical axis represents the value of relative radiant energy. Figure 2 shows the spectral distribution of an illumination lamp that emits light with wavelengths of 450 nm and 570 nm in a concentrated manner.
It's 00K. Figure 3 shows the spectral distribution of an illumination lamp that emits light with wavelengths of 490 nm and 610 nm in a concentrated manner. The color temperature is 6500 K.
Is. In addition, 2 about the illumination lamp of color temperature 6500 K
It goes without saying that the selection of wavelengths is endless.

Further, when the light color of the illumination light is designed to be an orangeish light color like an incandescent light bulb, as shown in FIG. 4, the standard light A of the incandescent light bulb is centered on the chromaticity coordinates. It is possible to realize two types of illumination lamps with a color temperature of around 3000 K by drawing a straight line of a book and concentrating the emission of spectrum light at each intersection of the spectrum locus and each straight line. In Figure 4, the combination of the two types of spectral light is
A combination of wavelengths of 440 nm and 580 nm and a combination of wavelengths of 500 nm and 620 nm are shown.

The method of theoretical calculation of the spectral radiant energy of an illumination lamp is such that the chromaticity point of the light color to be designed is (x3, y3), the brightness is Y3, and the straight line passing through (x3, y3) and the spectrum locus are The chromaticity points of the two spectra at the intersection are (x1, y1), (x2,
y2) and the luminance is Y1 and Y2, the following relational expressions (1) to (3) can be used.

X3 = (x1 * Y1 / y1 + x2 * Y2 / y2) / (Y1 / y1 + Y2 / y2) (1) y3 = (Y1 + Y2) / (Y1 / y1 + Y2 / y2) ... (2) Y3 = Y1 + Y2 (3) That is, the chromaticity point (x3, y
3), the luminance Y3, and the chromaticity points (x1,
y1) and (x2, y2) are substituted to obtain the ratio of Y1 and Y2 from the equation (1) or (2), and the value is calculated as the standard observer's luminous efficiency V (λ The spectral radiant energy can be calculated by dividing by.

Furthermore, as shown in FIG.
As shown in, 450 nm to 490 nm and 570 nm to 610n
If a wall color material whose spectral reflectance changes in the wavelength range up to m is used, the color of the wall will be perceived as a purplish white wall when illuminated by the two types of illumination lamps in Figs. 2 and 3. It Further, when illuminated only by the illumination lamp of FIG. 2, the color of the wall surface is perceived as a very bluish color. On the other hand, when illuminated by the illumination lamp of FIG. 3, the color of the wall surface is perceived as a very reddish color. However, no matter which lighting lamp is used, the light color is kept constant and its color temperature is 6500 K.

In the lighting environment, as shown in FIG.
If there is an object with a spectral reflectance that reflects the wavelength range of less than 610 nm, the object's color will be perceived as cyan when illuminated by the two types of illumination lamps in FIG. 2 and FIG. , The color of the object is perceived as white when illuminated by only the illumination lamp of FIG. 2, and the color of the object is perceived as a very vivid cyan color when illuminated by only the illumination lamp of FIG. To be done. However, in this case as well, the light color of the illumination light is white light of 6500K regardless of which illumination lamp designed in FIGS. 2 and 3 is used.

The spectral reflectances of the object as shown in FIGS. 5 and 6 are merely examples, and the spectral reflectances can be freely changed according to the intention of the designer to produce a free illumination effect.

As described above, for example, an illumination environment in which the light colors are the same and the color change can be dynamically enjoyed by mounting the illumination lamps having the spectral distributions shown in FIGS. 2 and 3 on an integrated device and controlling the lighting thereof. The system can be built. Further, by simply designing two types of illumination lamps having the same color temperature and mounting them on the currently used illumination equipment, the illumination effect shown in the embodiment can be produced. Further, if the illumination lamp is designed as a fluorescent lamp, it is expected that the illumination effect will be reduced due to the effect of the bright line by mercury. In order to maintain the illumination effect, it is possible to remove the bright line with a filter, for example.

Further, in the above-mentioned embodiment, a transmission plate having a spectral transmittance or a spectral reflectance concentrated in two wavelength regions instead of the two-wavelength band emission type illumination lamp in which the emission spectrum is concentrated in two wavelength regions. Alternatively, a reflector may be used. In this case, for example, in FIG. 1, it is preferable to have a spectral transmittance or a spectral reflectance that concentrates the spectrum of transmitted light or reflected light in the two wavelength regions where the straight line and the trace of the spectrum axis intersect. Further, in FIG. 1, one of the straight lines corresponds to the illumination lamp and the other straight line corresponds to the transmissive plate or the reflective plate, or both straight lines correspond to the transmissive plate and the reflective plate, respectively, to improve the lighting effect. It is also possible to have various designs.

[0023]

As is apparent from the above embodiments, according to the present invention, while maintaining the light color suitable for general illumination, the color rendering property can be appropriately changed according to the situation and the location, In addition, it is possible to provide a lighting environment system that dynamically changes the lighting environment.

[Brief description of drawings]

FIG. 1 is a chromaticity diagram showing the relationship between light color and spectrum light in an illumination lamp according to an embodiment of the present invention.

FIG. 2 is a spectral distribution diagram of an illumination lamp according to an embodiment of the present invention.

FIG. 3 is another spectral distribution diagram of the illumination lamp according to the embodiment of the present invention.

FIG. 4 is a chromaticity diagram showing a relationship between light color and spectrum light in an illumination lamp according to another embodiment of the present invention.

FIG. 5 is a spectral reflectance distribution diagram of an illumination space in an illumination environment system according to still another embodiment of the present invention.

FIG. 6 is a spectral reflectance distribution diagram of another illumination space in the illumination environment system of still another embodiment of the present invention.

Claims (8)

[Claims] 1. A dual-wavelength emission type illumination lamp in which the emission spectrum is concentrated in two wavelength regions in the visible wavelength region of 380 nm to 780 nm. 2. A luminaire comprising a transmission plate having a spectral transmittance concentrated in two wavelength regions in the visible wavelength region of 380 nm to 780 nm. 3. A luminaire composed of a reflector having a spectral reflectance concentrated in two wavelength regions in the visible wavelength region of 380 nm to 780 nm. 4. The lighting lamp according to claim 1, wherein two or more kinds of illumination lamps having different wavelength ranges of emission spectra concentrated in two wavelength ranges from 380 nm to 780 nm and having the same correlated color temperature are provided. Lighting equipment. 5. The two or more types in which the wavelength ranges of transmitted light spectra concentrated in two wavelength ranges from 380 nm to 780 nm are different and the correlated color temperatures are the same.
An illuminating device comprising the transmission plate described. 6. The two or more types in which the correlated color temperatures are the same in different wavelength regions of the reflected light spectrum concentrated in two wavelength regions in the visible wavelength region of 380 nm to 780 nm.
An illuminating device comprising the reflection plate described. 7. The illumination lamp according to claim 1 to claim 3.
A lighting device configured by combining any of the described lighting fixtures. 8. A lighting device according to any one of claims 4 to 7, and a wall, furniture or curtain having a reflecting surface having a spectral reflectance with wavelength selectivity in the visible wavelength range of 380 nm to 780 nm. It has a lighting space composed of
An illumination environment system that dynamically changes an illumination environment by controlling lighting of an illumination lamp arranged in the illumination device, spectral transmittance of a transmission plate, and spectral reflectance of a reflection plate.