JPS58121088A - Induction light employing light storage body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to a guide light that emits light after a light source is turned off or during a power outage to safely guide people to an exit. Regarding guiding lights.

Due to disasters such as earthquakes, fires, and other sudden accidents,
Power transmission and distribution equipment may malfunction, resulting in power outages. If this power outage occurs at night, or during the day in a place that is lit only by artificial lighting, such as a subway, underground mall, or subway car, it may cause damage to the feet of the people there. A light source is needed to provide illumination and guide people safely to the exit. In order to obtain this light source, an induction light is generally installed that is turned on by the regular power supply during normal times and automatically switched to the emergency power supply and turned on in an emergency. However, since this conventional induction light is also turned on by a power source, it has the disadvantage that it becomes useless if the power source or power distribution equipment is destroyed. In addition, the conventional guide lights have a complicated structure, so it takes time to install them, and the installation costs are high.

In particular, it is economically difficult to provide this emergency power equipment at home, so it is extremely rare for households to have this equipment. Furthermore, it is undesirable from the viewpoint of energy conservation to turn on the light using a power source.

In addition, not only in the case of an emergency as mentioned above, but in almost all buildings such as company buildings, school buildings, shops, and houses, turn off the lights in the rooms and hallways. After that, you will want some guidance lighting that will allow you to see your feet until you reach the exit, that is, a simple guidance light. Note that the brightness of this guiding light may become a nuisance after it has been turned on for several tens of minutes, so it is desirable that the light clears naturally.

The present invention has been made in view of the actual situation of conventional guide lights, and its purpose is to provide a guide light that does not require a power source and has a simple structure.

That is, the guide light of the present invention is characterized in that a light accumulating body having a property of absorbing and accumulating the light energy emitted by the light source is provided on the holding member located at a location where the light from the light source reaches.

The photoaccumulator according to this invention contains calcium, beryllium,
Magnesium, strontium, barium, lithium,
Sodium, zinc, aluminum.

Or by carbonates such as lead, sulfates, silicates, sulfides, oxides, hydroxides, or chlorides, etc.
Or strontium in the above compound.

Magnesium, tin, bismuth, boron, manganese, lead, chromium, copper, lanthanum, neodymium, europium,
It can be made by adding one or more of samarium and yttrium.

Hereinafter, a guide light using the light accumulator of the present invention will be explained based on the drawings. FIGS. 1(a) and (b) show a first embodiment of the present invention, and FIG. 2 shows a second embodiment of the present invention, in which the present invention is applied to a shade of an incandescent power source. FIG. In the figure, 1 is an incandescent light bulb, 2 is a glass shade, 3 is a socket, 4 is an electric wire, and 5 is a light accumulator. The first embodiment shown in 1 m (a) and (b) is based on the light storage body 5, for example, ZnS.
A material made by adding Cu to the material is applied to the entire inner surface of the holding member, that is, the shade 2. In the second embodiment shown in FIG. 2, the holding member, that is, the shade 2' is molded from a synthetic resin, and the light storage body is mixed into the synthetic resin during molding.

Figures 3(a), (b), and (c) are views showing a third embodiment in which the present invention is applied to a shade of a fluorescent light;
) is a perspective view of a shade of an exposed-tube type fluorescent light, that is, a guide light, when the present invention is applied to the shade, FIG. 3(b) is a side view of FIG. 3(a), and FIG. (c) is a longitudinal sectional view of a shade of a fluorescent light with a non-exposed bulb type, in which the present invention is applied, that is, a guide light. In the figure, 6 is a fluorescent tube, 7 is a fluorescent tube mount, 8 is a synthetic resin shade,
In this third embodiment, the light storage body 5 is coated on the entire inner surface of the holding member, that is, the shade 8.

In the guide light using the light accumulator of the first to third embodiments of the present invention configured as described above, the light is applied to the inner surfaces of the shades 2 and 8 or mixed into the shade 2. The light storage body 5 absorbs and stores the light energy emitted by the incandescent light bulb 1 or the fluorescent tube 6, which is the light source, when the light is emitted. Immediately after the clarification of the previous light source, the light storage body emits the accumulated light energy, that is, the regeneration light. As a result, the shade 2.2.8 equipped with a light accumulator illuminates people's feet, informs them of the location of entrances, exits, evacuation exits, etc., and serves as a guiding light to help people reach them safely. Fulfill. Note that the reproduced light by this light storage body is 1, for example, Z
In the case of nS made by adding Cu, the emission wavelength is in the range of 440 to 680 nm, and the maximum intensity is 560 nm.
It is nm. Furthermore, in the case of the Z n2810+ photoaccumulator, the emission wavelength is 480 to 700 nm, and the maximum intensity is 560 nm. Furthermore, these regeneration lights last for around 30 minutes after the light source is purified.

Note that the emission intensity and duration of the reproduction light from the light storage body will be explained in detail later based on the measurement results.

In addition to the glass and synthetic resin described above, the materials for forming the shades 2 and 8 may be metal 9 alloy, ceramics, polymer 9 paper, cloth, or the like. In addition, in the case of an opaque shade, a light accumulator is placed on the side surface that is irradiated by the light source, that is, on the inner surface of the shade.
However, in the case of a transparent shade, the light storage body 5 may be provided on the inner surface of the shade, or may be provided on the outer surface, or may be provided on both sides thereof. Further, as means for providing a light storage body in the shade 2.8, the above-mentioned method 1.
It is not limited to coating as in the third embodiment, but also includes pressure bonding, adhesive,
Spraying, vapor deposition, sputtering, etc. may also be used. Furthermore, in the second embodiment, when molding the shade 2 made of synthetic resin, a light accumulator is mixed into the synthetic resin, but this is not limited to the shade 2 of an incandescent power source. It goes without saying that this may be applied to the shade 8 of the light.

FIGS. 4(a) and 4(b) are perspective views of a fourth embodiment of the present invention, and FIG. 4(c) is a side view of FIG. 4(b). In the figure, 9 is a concave mirror with a circular shape when viewed from the front, such as a parabolic bell, 10 is a concave mirror with a rectangular shape when viewed from the front, such as a parabolic bell SI L is made of a small spherical synthetic resin body. The holding member 12 is a rod-shaped holding member made of a synthetic resin body, and the holding members 11 and 12 are coated with the light storage body. 13 is a support rod that supports the holding members 11.12. The holding members 11 and 12 are respectively installed at the focal positions of the concave mirrors 9 and 10 by means of support rods 13.

5(a) and 5(b) are respectively perspective views of the fifth embodiment of the present invention, and FIG. 5(c) is a side view of FIG. 5(b). In the figure, 14 is a concave mirror 1, for example, a hemispherical spherical mirror, 15 is a semi-cylindrical concave sphere, 16 is a holding member made of a small cone-shaped synthetic resin body, and 17 is a long triangular prism-shaped synthetic resin body. 1 retaining member 16.17
is coated with the light storage material. And holding member 1
6.17 are respectively installed at the focal positions of concave mirrors 14.15.

The fourth aspect of the present invention configured as above. If the guide light using the light storage body of the fifth embodiment is installed in a place where the light from the light source can reach, the incident light 18 from the light source will be focused by the concave mirrors 9, 10, 14° 15 at their focal positions. It will be done. A holding member II, 12° 16.17, provided with a light accumulator installed at the focal position absorbs and accumulates the optical energy of the incident light 18 from the light source. Immediately after clarification of the light source, the holding members 11, 12, 16 provided with the light storage body
, 17 emits accumulated optical energy, that is, reproduction light.

That is, the fourth aspect of the present invention. In the guide light using the light storage body of the fifth embodiment, after the incident light 18 from the light source is cut off, the emitted light from the holding members 11, 12, 16, 17 is transmitted to the concave mirrors 9, 10, 14, respectively. Since it is emitted as a parallel ray 19 by 15°, it illuminates the vicinity and 10~ts
The light can reach as far as 100 m, making it possible to inform people far away of the location of entrances, evacuation exits, stairs, etc. Furthermore, the shapes of the holding members 11, 12, 16, and 17 on which the light accumulators are provided are not limited to the spheres, rods, cones, and triangular prisms shown in the drawings; If it has a small volume, only a small amount of the light accumulator is needed, and it still functions satisfactorily as a guide light.

Note that the means for providing the light storage bodies on the holding members 11, 12, 16, and 17 is not limited to the coating described in the above embodiments, and may be other methods such as pressure bonding, adhesion, spraying, vapor deposition, and sputtering.
.

FIG. 6 is a diagram showing a sixth embodiment of the present invention, and is a schematic diagram of an assembly of guide lights using the above-mentioned light storage device. That is, in the sixth embodiment shown in FIG. 6, a plurality of guide lights 20 using the light storage bodies shown in FIG. 4(a) are arranged and installed on a flat plate 21, and each The direction of the guide light 20 is changed little by little. With such a configuration, the light emitted by each guide light 20 can be seen from any distant position, making it a very effective guide light for evacuation.

Next, the luminescence intensity and duration of luminescence of the light storage body according to the present invention will be explained based on graphs showing the measurement results thereof.

First of all, the spectroradiometer
The results of measuring the spectral intensities of the light storage body and the light source using the following are described below. As a light source, two 40W fluorescent lights were used, and as a sample of the photoaccumulator, a powder of photoaccumulator made by adding Ou to ZnS was placed on the surface of the postcard per 1 inch of paper. 12 was used, and the spectroradiometer was Moaet555 manufactured by EG&G in the United States.
It was used.

Figure 7 is a graph showing the results of measuring the emission spectrum, that is, the spectral intensity, of the light source with the spectroradiometer placed 1 m away from the light source. The intensity (unit: W/cm") is the key. As is clear from this graph, the spectrum of the light source has two wavelengths: 1 about 450 nm and about 550 to 6'30 nm.
There are two mountains.

FIG. 8 is a graph showing the emission spectrum, that is, the spectral intensity, from the light accumulator applied to the sample when the sample is exposed to the light source for one minute and then the light source is turned off.
As in the above measurements, the spectroradiometer was placed 1 m away from the sample. Similarly to the graph of FIG. 6, the horizontal and vertical axes represent wavelength and spectral intensity, respectively. As is clear from this graph, the wavelength range extends from about 500 to 600 nm, and the maximum intensity is at 540 nm.

FIG. 9 shows that the sample is exposed to the light source as in the measurement above.
After exposing the sample for 1 minute, when the light source is turned off, the temporal change in light at 540 nm (Figure 8), which is the maximum spectral intensity, of the light emitted from the light storage material coated on the sample is measured. In the graph shown, the horizontal axis shows elapsed time (unit: min)%, and the vertical axis shows spectral intensity (unit: W/cm2). As this graph shows, the spectral intensity from the sample sharply decreases about 2 minutes after the light source is turned off, but after that it continues to emit reproduction light while attenuating very slowly for about 30 minutes.

Moreover, this spectral intensity for 10 to 30 minutes is approximately 1/20 of the maximum spectral intensity of two 40W fluorescent lights that are one light source.
It turned out to be.

Next, the results of measuring the luminescence intensity of the light storage body of the present invention using a luminometer will be described. Here, as the light source, two 40W fluorescent lights were used as in each of the above measurements, and as the sample, L
Ocm X I Ocm cardboard Z n 8 C
A material coated with a photoaccumulator made by adding u was used. 1.5 from the light source as measured by a luminometer.
The illuminance at a distance of m is 40tX% from the sample to 1.5
The illuminance at the place where I left the room was 2Lx.

The following can be said from the above measurement results. That is, 2
A light accumulator (ZNS with O
1) becomes a light source with an emission intensity about twice that of the fluorescent light for about 30 minutes after the fluorescent light source is turned off.

Two 40W fluorescent lights! In the case of a guide light using a light storage device with a (80W) light source, it is equivalent to a 4W light source, and is useful not only as a guide light to the exit after smoke extinguishing, but also as a guide light for evacuation during a power outage. It is something.

Note that in the light storage body according to the present invention, the color of the light emitted by the light storage body can be determined in various ways depending on the combination of elements constituting the light storage body. For example, red is CaCO3:
Mn1 pink color is ZnS, orange color is Z n Cd
S: Ou% Yellow is 0aFt or Ma2M9(c
o3)2 CL.

Cream color is Oa Barn, green color is Z n8: C
u SZ nt810+ or BO2: Mn, Mg
1 Blue can be produced by OaS, and purple can be produced by ZnO. Therefore, if a guide light that displays figures, characters, symbols, etc. is constructed using light accumulators that emit these different colors, it can become a very effective guide light for evacuation.As described above, the present invention An induction light that uses a light accumulator is a light that has the property of absorbing and accumulating the light energy emitted by the light source in a holding member such as an incandescent power source or a shade of a fluorescent light located in a place where the light from the light source reaches. Since the storage body is provided,
Power supply can be eliminated. Moreover, it can be easily manufactured and installed, and its cost can be reduced. Furthermore, a guide light with a light storage body provided at the focal point of one concave bell can emit reproduced light from the light storage body over a long distance using the concave mirror, so it can be used to locate entrances, evacuation exits, stairs, etc. You can inform people even far away. As described above, the effects of the present invention are remarkable.

[Brief explanation of drawings]

FIGS. 1(a) and (b) show a first embodiment of the present invention, FIG. 2 shows a second embodiment of the present invention, and FIGS. 3(a) and (b)
). (c) shows the third embodiment of the present invention; FIG. 4(a), (
b). (c) shows the fourth embodiment of the present invention; FIG. 5(a), (
b). (C) is a diagram showing a guide light using the light storage device of the fifth embodiment of the present invention, and FIG. 6 is a diagram showing a guide light assembly using the light storage device of the sixth embodiment of the present invention. Figure 7 is a graph showing the spectral intensity of the light source, Figure 8 is a graph showing the spectral intensity of the light storage body, and Figure 9 is a graph showing the spectral intensity of the light storage body.
The figure is a graph showing the temporal change in the maximum value of the emission spectrum of the light storage body. 1...Incandescent light bulb 2.2', 8...Sade 5
...Light accumulator 6...Fluorescent tube 9.10,1
4.15...Concave mirror 11, 12.16.17...Retaining member attorney Junnosuke Nakamura Figure 1 (a) (b) Figure 3 (b) (C)

Claims (1)

[Scope of Claims] (1) In a guide light that emits light after the light source is turned off or during a power outage to safely guide people to an exit, the light source is attached to a holding member located in a place where the light from the light source can reach. An induction light characterized by being provided with a light storage body that has the property of absorbing and accumulating emitted light energy. (2) A guide light using a light accumulator according to claim 1, wherein the holding member is a shade of the light source. (5) A light storage body according to claim 1, characterized in that a concave mirror is provided to face the irradiation light from the light source, and the holding member is provided at a focal position of the concave mirror. Guide light used.