JPH07142175A - Lighting system - Google Patents

Abstract

PURPOSE:To increase the dimming feeling, provide the presentation property, and increase practicality in a lighting system dimming a plurality of lamps in the lump. CONSTITUTION:One luminaire X is provided with (n) lamps A, B, C in parallel ((n) is an integer of 2 or above), the light of (n) lamps A, B, C is radiated through no diffusion plate, and the synthetic light output ratio of (n) lamps A, B, C is collectively and continuously controlled according to the dimming signal. The change of the light output ratio of at least one lamp, e.g. C, within (n) lamps A, B, C is made different from the change of the light output ratio of the remaining lamps A, B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the same type or structure, shape,
Different types of p such as wattage (p is an integer of 2 or more)
Of n lamps (n is an integer of 2 or more) are distributed, the lights of the n lamps of the same type or p kinds are irradiated without passing through the diffuser, and the combined light output of the n lamps The present invention relates to a lighting device that comprehensively and continuously controls (dimming) light.

[0002]

2. Description of the Related Art FIG. 9 shows a schematic view of an example of a conventional lighting device. In FIG. 9, X is a lighting fixture, A, B, C
Is three lamps of the same color and of the same type, such as a straight tube fluorescent lamp, which are distributed and arranged in one lighting fixture X mounted on the ceiling or the like. The three lamps A, B, and C pass through a diffusion plate. Instead, the interior is illuminated with the same light distribution.
A ₁ , B ₁ , and C ₁ are lighting devices for lighting the lamps A, B, and C, respectively, which are built into the lighting fixture X, function as discharge lamp ballasts, and output light from the lamps A, B, and C. The ratio can be continuously controlled in the range of 0% to 100%. E is an AC power supply that supplies power to the lighting devices A ₁ , B ₁ , and C ₁ . L is a dimmer, and the same dimmer signal is sent from the dimmer L to the lighting devices A ₁ , B ₁ and C ₁ to integrally and continuously control the combined light output ratio of the lamps A, B and C. That is, continuous dimming.

FIG. 10 shows changes in the light output of each of the lamps A, B, and C with respect to changes in the dimming ratio of the fixture (corresponding to the dimming signal of the dimmer L), and the light output of the entire lighting fixture X (lamp). A,
The state of change in the combined light output of B and C) is shown. As is apparent from FIG. 10, the changes in the light output ratios of the lamps A, B, and C are all the same. That is, when the light output ratio of the entire lighting fixture X is 100%, the light output ratios of the lamps A, B, and C are all equal at 100%, and the light output ratio of the entire lighting fixture X is 5%.
At 0%, the light output ratios of the lamps A, B, C are all equal at 50%, and in the range where the light output ratio of the entire lighting fixture X is controlled at 0-100%, the light output of the lamps A, B, C. The output ratio is always the same.

[0004]

Consider a situation in which an illumination device, as shown in FIG. 9, in which each lamp is uniformly dimmed is installed. First, for example, as shown in FIG. 11, the three lamps A, as shown in FIG.
A case where the lighting fixture X having B and C is installed will be described. In this case, at the position K of the illuminance β (lx), the brightness of the light output of the lamp C is greatly affected. At the position U of the illuminance α (lx), the light outputs of the lamps A, B, and C are affected. Three lamps A, B, C are 100
At a light output ratio of%, the illuminance is α> β.

Now, considering the case where the illumination device is dimmed from 100% to 20%, it means that dimming is performed at the same light output ratio at the position U and the position K. At this time, the illuminance is α ′ (lx) at the position U and β ′ (lx) at the position K. The illuminance at this time is defined as α>β> α ′> β ′. At this time, the dimming sensation that the human M ₁ feels at the position U and the dimming sensation that the human M ₂ feels at the position K are likely to differ.
For example, Table 1 shows the difference when humans M ₁ and M ₂ read a newspaper due to dimming.

[0006]

[Table 1]

Since the characters cannot be read at the illuminance β'at the position K, it is easier to feel that the position K is dimmed than the position U even if the dimming degree is the same. In this case, in order to bring the dimming degree felt at the positions U and K close to the same state, it is necessary to lower the light output ratio of the lamps A and B than the light output ratio of the lamp C. Next, for example, as shown in FIG.
A case will be described in which the lighting fixture X having the three lamps A, B, and C as shown in FIG. 9 is installed on the ceiling near the window of the room DS where the natural light G ₁ enters through the window MD. In this case, as in the case of FIG. 11, when the light is adjusted from 100% to 20%, at the position O away from the window of the indoor DS,
Although a dimming feeling is felt, at the position N where natural light strikes by the window of the room DS, the natural light G ₁ enters in addition to the illumination light H ₁ , so the dimming feeling is hard to feel. Also, from a practical perspective,
At position O, lighting is needed to read the book, but at position N, no lighting is needed during the day. In this case, the light output ratio of the lamp C needs to be lower than that of the lamps A and B in order to make the dimming feeling at the position O and the position N the same or to increase the dimming feeling at the position O.

As described above, when the interior of a room is illuminated by an illuminating device that collectively dims a plurality of lamps arranged in parallel, the plurality of lamps all have the same light output ratio according to the dimming signal. Since it is changed, it may not be possible to obtain an appropriate light control feeling due to the difference in the positional environment in the room. Further, since dimming is performed only in one fixed pattern, that is, in a pattern in which all the lamps change the light amount ratio in the same manner, the dimming effect is poor. Therefore, the dimming function of the illuminating device is low in practicality.

Therefore, an object of the present invention is to provide a lighting device for dimming a plurality of lamps in a lump, which is capable of enhancing the practicality by enhancing the sense of dimming or imparting the performance. It is to provide a device.

[0010]

According to a first aspect of the present invention, there is provided a lighting apparatus in which n lamps (n is an integer of 2 or more) of the same color are arranged in parallel, and the light of the n lamps is arranged. It irradiates without passing through the diffuser plate and comprehensively continuously controls the combined light output ratio of the n-lamp lamps in accordance with the dimming signal. The light output ratio of at least one of the n-lamp lamps The change is different from the change in the light output ratio of the rest of the lamps.

According to a second aspect of the present invention, in one lighting fixture, n-lamp lamps of the same color are arranged in parallel, the light of the n-lamp lamps is emitted without passing through the diffuser plate, and according to the dimming signal. The combined light output ratios of the n-lamps are collectively and continuously controlled, and the changes in all the light output ratios of the n-lamps are made different from each other. The lighting device according to claim 3 has n lamps of the same color arranged side by side in one lighting fixture, irradiating the light of the n lamps without passing through the diffuser plate, and according to the dimming signal, The integrated light output ratio of the lamps is integrally and continuously controlled, and the change of the light output ratio of the m lamps (m is an integer smaller than n) out of the n lamps is changed to the light output ratio of the remaining lamps. It's different from change.

According to a fourth aspect of the present invention, there is provided a lighting device in which a p-type lamp having the same color and different structure, shape, wattage, and the like is used.
Type (p is an integer greater than or equal to 2) lamps are arranged in parallel, the light of the p type lamps is irradiated without passing through the diffuser, and the combined light output ratio of the p type lamps is controlled comprehensively according to the dimming signal. This is continuous control, and the changes in the light output ratios of the p types of lamps are made different from each other.

[0013]

According to the structure of claim 1, when the combined light output ratio of the lamps of n lamps is comprehensively continuously controlled according to the dimming signal, the light of at least one of the lamps of n lamps is controlled. By making the change of the output ratio different from the change of the light output ratios of the remaining lamps, it is possible to enhance the dimming feeling and give a sense of production.

According to the second aspect of the present invention, when the combined light output ratios of the n-lamp lamps are continuously controlled comprehensively in accordance with the dimming signal, changes in all the light output ratios of the n-lamp lamps are mutually changed. By making them different, you can enhance the dimming feeling,
It is possible to give a sense of production. According to the configuration of claim 3, when the combined light output ratio of the n-lamp lamps is comprehensively and continuously controlled according to the dimming signal, m of the n-lamp lamps are controlled.
By making the change in the light output ratio of the lamp (m is an integer smaller than n) different from the change in the light output ratio of the remaining lamps, it is possible to enhance the dimming feeling and give a sense of production. .

According to the fourth aspect of the present invention, the combined light output ratios of the p types of lamps are integrally and continuously controlled according to the dimming signal, and the changes in the light output ratios of the p types of lamps are different from each other. By increasing the light control feeling,
It is possible to give a sense of production.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic view of a lighting device according to a first embodiment of the present invention. In FIG. 1, X is a lighting fixture, A,
B and C are 3 of the same color and the same type, for example, straight tube type fluorescent lamps, etc., which are distributed and arranged in one lighting fixture X mounted on the ceiling or the like.
The three lamps A, B, and C are used to illuminate the interior of the room with light distribution without passing through the diffuser plate. A ₁ , B ₁ , and C ₁ are lighting devices for lighting the lamps A, B, and C, respectively, which are built into the lighting fixture X, function as discharge lamp ballasts, and output light from the lamps A, B, and C. The ratio can be continuously controlled in the range of 0% to 100%. E is an AC power supply that supplies power to the lighting devices A ₁ , B ₁ , and C ₁ .

Reference numeral L is a dimmer that comprehensively and continuously controls the combined light output ratio of the lighting fixture X by a knob, and generates a dimming signal according to the dimming degree of the entire lighting fixture X. MC inputs the dimming signal given from the dimmer L to the lighting device A.
_1, B _1, a microcomputer providing individually dimming signal to C _1, lamp A, B, lighting apparatus A ₁ to light the C, B _1, and C ₁ individually controlled, the lamp A, B, C
The light output ratio of is changed individually. The lamps A, B,
The dimming curve corresponding to C is the microcomputer MC
Is programmed in. That is, the microcomputer MC receives the dimming signal of the entire luminaire X provided from the dimmer L as an input, and outputs individual dimming signals of the lamps A, B, and C according to the programmed dimming curve. become.

FIG. 2 shows a change in the light output of each of the lamps A, B, and C with respect to a change in the fixture dimming ratio (corresponding to the dimming signal of the dimmer L) in the lighting device of this embodiment, and the lighting fixture. The change in the optical output of X as a whole (the combined optical output of the lamps A, B, and C) is shown. In this embodiment, as is apparent from FIG. 2, the changes in the light output ratios of the lamps A and B are the same and are convex curves, and the light output ratio of the lamp C is the lamps A and B.
Is set lower than the light output ratio of, and the change is a concave curve. That is, the rate of change in the light output ratio of the lamp C is made larger than that of the lamps A and B at the time of dimming, and the dimming feeling felt by the person M _{2 at} the position N in FIG. 12 is increased. Also,
In the dimming range below 100%, the light output ratio of the lamps A, B, and C is always low in the lamp C. Therefore, when illuminating the position N where the illuminance at which natural light is obtained is high, as described above. Energy saving effect can be obtained by illuminating.
The light output of the luminaire X as a whole is the same as that of the conventional example and other embodiments, and the difference is the ratio of the light output of the lamps A, B, and C.

FIG. 3 shows a fixture dimming ratio (corresponding to a dimming signal of the dimmer L) in the lighting apparatus according to the second embodiment of the present invention.
The change in the light output of each of the lamps A, B, and C and the change in the light output of the entire luminaire X (combined light output of the lamps A, B, and C) with respect to the change of P. The configuration of the lighting device is the same as that shown in FIG. In this example, FIG.
As is apparent from the above, the changes in the light output ratios of the lamps A and C are the same, and there is a substantially S-shaped curve, and the light output ratio of the lamp B is set to be different from the light output ratio of the lamps A and C. The change is a substantially inverted S-shaped curve. In other words, the person M _{1 at} the position U in FIG. 11 increases the dimming sensation, and the light output ratio of the central lamp B is decreased in accordance with the dimming. The reason why the light output ratio of the lamp B is increased again when the dimming ratio of the appliance is 40% or less is to improve the performance of lighting the central lamp B with one lamp. The light output of the luminaire X as a whole is the same as that of the conventional example and other embodiments, and the difference is the ratio of the light output of the lamps A, B, and C.

FIG. 4 shows a fixture dimming ratio (corresponding to the dimming signal of the dimmer L) in the lighting apparatus according to the third embodiment of the present invention.
The change in the light output of each of the lamps A, B, and C and the change in the light output of the entire luminaire X (combined light output of the lamps A, B, and C) with respect to the change of P. As is clear from FIG. 4, the dimming characteristic of this embodiment is such that the instrument dimming ratio is 100 to 100%.
At 90%, the light output ratio of each lamp A, B, C is lamp A =
Lamp B = lamp C, and at 90 to 76%, the light output ratio of each lamp A, B, C is lamp A> lamp B> lamp C.
In the range of 75 to 25%, the light output ratio of each of the lamps A, B and C becomes lamp B ≧ lamp A> lamp C, and 25 to 10%.
%, The light output ratio of each lamp A, B, C becomes lamp A ≧ lamp B> lamp C.
The light output ratio of B and C is such that lamp A> lamp B = lamp C. In this way, each of the lamps A, B, and C has a different dimming curve, thereby producing a dramatic effect. The light output of the luminaire X as a whole is the same as that of the conventional example and other examples, except that the lamps A, B and C are different.
Is the ratio of the light output of.

FIG. 5 shows a schematic view of a lighting device according to a fourth embodiment of the present invention. For simplification, only the differences from the lighting device of FIG. 1 will be described. In FIG. 5, A'and C'are, for example, a lamp consisting of a 30 W straight tube fluorescent lamp (FL30),
B'is a lamp composed of, for example, a 20 W straight tube fluorescent lamp (FL20). These lamps A ', B', and C'have the same emission color but different wattages. A ₁ ′, B
_Reference numerals ₁ ′ and C ₁ ′ are lighting devices (ballasts) for lighting the lamps A ′, B ′ and C ′, respectively, which have a dimming function.

FIG. 6 shows changes in the light output of each of the lamps A ', B', and C'with respect to changes in the fixture dimming ratio (corresponding to the dimming signal of the dimmer L) in the lighting apparatus of this embodiment. , Shows how the light output of the luminaire X as a whole (the combined light output of the lamps A ', B', and C ') changes. In this lighting device, the light output ratio of the lamps B ′ does not change and the light output ratios of only the lamps A ′ and C ′ change within the range of the device dimming ratio of 100 to 20%, and the device dimming ratio of 20 to 0. In the range of%, the light output ratio of only the lamp B'changes and the light output ratio of the lamps A'and C'is zero. In other words, in this lighting device, the light output ratio of the lamps A'and C'having large watts is gradually reduced by the dimming operation, and after the lamps A'and C'are extinguished,
The light output ratio of the lamp B'having a small wattage is gradually reduced to improve the performance. The light output of the luminaire X as a whole is the same as that of the conventional example and other embodiments, and the difference is the ratio of the light output of the lamps A ', B', and C '.

FIG. 7 is a schematic view of an illuminating device according to the fifth embodiment of the present invention. For simplification, only the differences from the lighting device of FIG. 1 will be described. In FIG. 7, A'and C'are, for example, a lamp consisting of a 30 W straight tube fluorescent lamp (FL30),
B ″ is, for example, a 27 W twin type 2 fluorescent lamp (FDL2
0) and these lamps A ′,
B ″ and C ′ have the same luminescent color but different wattages and shapes. A ₁ ′, B ₁ ″, and C ₁ ′ are lighting devices (stable) for lighting the lamps A ′, B ″, and C ′, respectively. Vessel), each of which has a dimming function.

FIG. 8 shows changes in the light outputs of the lamps A ', B ", and C'with respect to changes in the dimming ratio of the fixture (corresponding to the dimming signal of the dimmer L) in the lighting apparatus of this embodiment. , The change of the light output of the entire lighting fixture X (combined light output of the lamps A ′, B ″, C ′) is shown. In this illuminating device, as in the case of the fourth embodiment described above, the light output ratio of the lamp B ′ does not change and the light output ratio of only the lamps A ′ and C ′ is in the range of the appliance dimming ratio of 100 to 20%. Changes, and the instrument dimming ratio is 20 to 0
In the range of%, the light output ratio of only the lamp B'changes and the light output ratio of the lamps A'and C'is zero. In other words, in this lighting device, the light output ratio of the lamps A'and C'having a large wattage is gradually reduced by the dimming operation, and after the lamps A'and C'are extinguished, the lamp B having a small wattage is used. The light output ratio of ‘′ is gradually reduced to improve the performance, and the shape of the lamp B ″ is made different from the other lamps A ′ and C ′ to increase the dimming feeling. The light output of the luminaire X as a whole is the same as that of the conventional example and other embodiments, and the difference is the ratio of the light output of the lamps A ′, B ″, C ′.

In each of the above embodiments, all the lamps are discharge lamps such as fluorescent lamps, but it goes without saying that the present invention can be applied to an illuminating device having a mixture of fluorescent lamps and incandescent lamps. That is not the case. Further, in the above-mentioned embodiment, the respective lamps have the same emission color, but they do not have to have the same color.

[0026]

According to the illuminating device of the first aspect of the present invention, when the combined light output ratio of the n-lamps is comprehensively and continuously controlled according to the dimming signal, at least one of the n-lamps is controlled. By making the change in the light output ratio of the lamp different from the change in the light output ratio of the rest of the lamps, it is possible to enhance the dimming feeling and give a sense of production, which is highly practical.

According to the lighting device of the second aspect, when the combined light output ratio of the lamps of n lamps is comprehensively and continuously controlled according to the dimming signal, the change of all the light output ratios of the lamps of n lamps is changed. By making them different from each other, it is possible to enhance the sense of dimming and to give a sense of production, which is highly practical. According to the lighting device of claim 3, when the integrated light output ratio of the lamps of n lamps is comprehensively continuously controlled according to the dimming signal,
The light output ratio of m lamps (m is an integer smaller than n) out of the lamps is made different from the light output ratios of the remaining lamps to enhance the dimming feeling or the sense of production. It has a high practicality.

According to the fourth aspect of the present invention, the combined light output ratios of the p types of lamps are integrally and continuously controlled according to the dimming signal, and the changes in the light output ratios of the p types of lamps are mutually controlled. By making them different, it is possible to enhance the sense of dimming and to give a sense of production, which is highly practical.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a configuration of a lighting device according to a first embodiment of the present invention.

FIG. 2 is a light output showing a change in light output of each of the lamps A, B, and C and a change in light output of the entire lighting fixture X with respect to a change in fixture dimming ratio in the lighting apparatus of the first embodiment. It is a device dimming ratio characteristic diagram.

FIG. 3 shows changes in the light output of each of lamps A, B, and C and changes in the light output of the entire lighting fixture X with respect to changes in the fixture dimming ratio in the lighting apparatus of the second embodiment of the present invention. It is a light output-apparatus dimming ratio characteristic figure shown.

FIG. 4 shows changes in the light output of each of the lamps A, B, and C and changes in the light output of the entire lighting fixture X with respect to changes in the fixture dimming ratio in the lighting apparatus of the third embodiment of the present invention. It is a light output-apparatus dimming ratio characteristic figure shown.

FIG. 5 is a schematic diagram showing a configuration of a lighting device according to a fourth embodiment of the present invention.

FIG. 6 is a light output showing a change in the light output of each of the lamps A, B, and C and a change in the light output of the entire lighting fixture X with respect to the change in the fixture dimming ratio in the lighting apparatus of the fourth embodiment. It is a device dimming ratio characteristic diagram.

FIG. 7 is a schematic diagram showing a configuration of a lighting device of a fifth embodiment of the present invention.

FIG. 8 is a light output showing a change in the light output of each of the lamps A, B, and C and a change in the light output of the entire lighting fixture X with respect to the change in the fixture dimming ratio in the lighting apparatus of the fifth embodiment. It is a device dimming ratio characteristic diagram.

FIG. 9 is a schematic diagram showing a configuration of a conventional example of a lighting device.

FIG. 10 shows a change in light output of each of lamps A, B, and C and a change in light output of the entire lighting fixture X with respect to a change in fixture dimming ratio in a conventional example of a lighting device. It is a light ratio characteristic view.

FIG. 11 is a schematic view showing an installation state of a lighting device.

FIG. 12 is a schematic diagram showing an installation state of a lighting device.

[Explanation of symbols]

A lamp B lamp C lamp A ₁ lighting device B ₁ lighting device C ₁ lighting device E AC power supply L Dimmer MC microcomputer

Claims (4)

[Claims] 1. An n-lamp (n is an integer of 2 or more) lamps are arranged side by side in one luminaire, and the light of the n-lamp lamps is irradiated without passing through a diffusion plate, and according to a dimming signal. A lighting device for integrally and continuously controlling a combined light output ratio of n lamps, wherein a change in a light output ratio of at least one of the n lamps is changed to a light output ratio of the remaining lamps. A lighting device characterized by being different from changes. 2. A lamp of n lamps is arranged side by side in one luminaire, and the light of the lamp of the n lamps is irradiated without passing through a diffusion plate,
A lighting device for integrally and continuously controlling a combined light output ratio of the lamps of n lamps according to a dimming signal, wherein changes in all light output ratios of the lamps of n lamps are different from each other. Lighting equipment. 3. A lamp of n lamps is arranged side by side in one lighting fixture, and the light of the lamps of the n lamps is irradiated without passing through a diffuser plate,
And a lighting device for integrally and continuously controlling the combined light output ratio of the lamps of n lamps according to a dimming signal, wherein the light output of m lamps (m is an integer smaller than n) of the lamps of n lamps A lighting device characterized in that the change in the ratio is made different from the change in the light output ratio of the remaining lamps. 4. P-type (p is an integer of 2 or more) lamps having different structures, shapes, wattages and the like are arranged in parallel in one lighting fixture, and the light of the p-type lamps is provided with a diffusion plate. An illuminating device that irradiates without passing through and comprehensively continuously controls the combined light output ratio of the p types of lamps according to a dimming signal, and changes the light output ratios of the p types of lamps differently from each other. A lighting device characterized by the above.