JPH10223019A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change a light emitting color of an afterglow according to the elapsed time after lights-out, and enable utilization and development for refuge and guidance or the like at power failure time by coating a luminaire main body part irradiated by the light from a light source with plural phosphors which have long afterglow performance and are different in an afterglow characteristic. SOLUTION: An upward projecting recessed part 1b is formed in the lengthwise direction of the inside surface side of an upper surface part 1a of a luminaire main body 1, and the recessed part 1b is coated with a mixed phosphor 2 formed by mixing plural phosphors which have long afterglow performance and are different in an afterglow characteristic. For example, a compound on which a general equation is expressed by MAl2 O4 (M is a light accumulating phosphor using a compound composed of a metallic element selected from a group composed of calcium, strontium and barium as a mother crystal) is used as the phosphor 2 having long afterglow performance. After it is coated with the mixed phosphor 2, a covering member 3 such as an acrylic resin and a silicone resin is formed in layers on it. Straight tube type plural fluorescent lamps 4 are arranged inside the luminaire main body 1, and afterglow performance is imparted for may hours after lights-out, can contribute to the guiding light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device,
In particular, the present invention relates to an improvement in a lighting fixture that exhibits afterglow that allows an object to be identified even after 10 minutes or more, for example, after the fluorescent lamp is turned off.

[0002]

2. Description of the Related Art In general, a lighting apparatus includes, for example, a gutter-shaped apparatus main body and a fluorescent lamp arranged in a predetermined positional relationship with the main body, and a resin-made milky white panel or the like below the fluorescent lamp. A cover and the like are arranged.

[0003] The lighting fixtures are used for various purposes. For example, many lighting fixtures using FL40 type fluorescent lamps are used as construction tools not only in offices but also in large stores, theaters, baths, underground shopping centers, and the like. Used in a wide range of fields.

[0004] By the way, since many people gather in large stores, theaters, underground shopping centers, and the like where such lighting equipment is frequently used, if a power outage occurs due to a disaster such as a fire or an earthquake, a panic condition may occur. It is expected that an unexpected accident will occur.

[0005] Accordingly, in the Fire Services Act and the Building Standards Act, large stores, theaters, underground shopping centers, and the like that have a certain space or more and satisfy the conditions such as a large number of people gather, besides general lighting equipment, Installation of lights, emergency lights, etc. is required.

[0006] For these guide lights and emergency lights, for example, the fluorescent lamp is turned on by a commercial power supply in a normal state, and the illuminance of a fluorescent lamp or a bulb is 1 (Lx) using an internal battery as a power supply in an emergency (during a power failure). The lamp is turned on for at least 20 to 30 minutes.

[0007] Therefore, even in the event of an emergency, even if the commercial power supply is cut off and general lighting fixtures are turned off, the illuminance on the floor surface is at least 1 (Lx) or more. Rapid evacuation is possible.

However, since these guide lights and emergency lights are expensive, the number of installations thereof is smaller than that of general lighting equipment. For example, in the case of being placed below a wall, such as a guideway light, if it is congested, there is a significant difference in visibility of the guideway light between people close to the wall and people far away. The effect will appear.

On the other hand, in a general home where there is no duty to install a guide light or an emergency light, when a power failure occurs due to a disaster, it is not easy to evacuate smoothly and quickly in the dark, and evacuation of children and the elderly is difficult. May be delayed.

[0010]

SUMMARY OF THE INVENTION Accordingly, the applicant has
First, a fluorescent lamp having a light emitting layer made of one or more kinds of phosphors on the inner surface of a glass bulb, and a phosphor having long afterglow mixed into the light emitting layer at least 0.2 mg / cm ^2. (See Japanese Patent Application No. 7-204369).

According to this proposal, by using this fluorescent lamp in the same manner as a general illumination fluorescent lamp, even if 500 seconds have elapsed after the fluorescent lamp was turned off, the object can be identified by 0.05 Lx. Illuminance (about 10mm from the lamp
The illuminance at a distant point) is obtained, and functions as a guide light or a nightlight at the time of a power failure.

However, in an emergency, the fluorescent lamp may fall out of the lighting equipment or be damaged by an impact.
When the light is scattered, there is a problem that the function of an induction lamp based on the long afterglow characteristic of the fluorescent lamp is impaired.

In addition, since the brightness of this fluorescent lamp at the time of normal operation cannot be as high as that of a general fluorescent lamp for illumination, the number of luminaires to be installed is required to satisfy a predetermined floor illuminance. There is also the problem that the financial burden must be increased.

[0014] Therefore, an object of the present invention is to provide a predetermined long afterglow even if the glass bulb is broken by a relatively simple structure, and to obtain a brightness comparable to practical use. Another object of the present invention is to provide a lighting device that can be used and developed other than a guide light or a night light.

[0015]

SUMMARY OF THE INVENTION Accordingly, in order to achieve the above-mentioned object, the present invention comprises an instrument body and a light source arranged to have a predetermined positional relationship with respect to the instrument body, The apparatus main body portion irradiated with light from the light source has a long afterglow, and a plurality of phosphors having different afterglow characteristics are adhered, the second invention of the present invention, The third invention is characterized in that a plurality of phosphors having a long afterglow and having different persistence characteristics are mixed or laminated in a layered manner on the main body portion of the device, and the third invention is characterized in that: Is characterized in that a plurality of phosphors having long afterglow and having different persistence characteristics are applied in a mixed state or each phosphor is separately screen-printed on the main body of the device. Further, the fourth invention provides a plurality of fluorescent lamps having the long afterglow and having different afterglow characteristics. Deposition area of the instrument body portion of the body 5
0 cm ² or more.

According to a fifth aspect of the present invention, there is provided an instrument body,
A light source disposed so as to have a predetermined positional relationship with respect to the appliance body, and the appliance body portion to which light from the light source is irradiated has a long afterglow on one surface of the base member. And
A sheet structure formed by mixing and adhering a plurality of phosphors having different afterglow characteristics is attached, and the sixth invention is characterized in that the other of the base members in the sheet structure is provided. Is characterized in that an adhesive layer is formed on the surface and is adhered to the device main body.

According to a seventh aspect of the present invention, there is provided an instrument main body,
A fluorescent lamp arranged so as to have a predetermined positional relationship with respect to the fixture main body, and a resin decoration plate attached to the fixture main body, wherein the decoration plate has a long afterglow, and has an afterglow characteristic Characterized in that a plurality of different phosphors are mixed.

An eighth invention according to the present invention provides an instrument body,
A light source arranged so as to have a predetermined positional relationship with respect to the instrument body, a panel, a louver, a cover, a shade and a glow;
A light-control member including at least one selected from the group consisting of: a plurality of phosphors having a long afterglow and having different afterglow characteristics. A ninth invention is characterized in that the light source is at least one selected from the group consisting of a fluorescent lamp, a light bulb, and an HID lamp, and a tenth invention is that the light control member Among them, the mixing amount of the mixed phosphor composed of a plurality of phosphors having long afterglow and having different afterglow characteristics to the light-transmitting light control member is 50% or less of the weight of the light control member. The eleventh invention is characterized in that, among the light control members, the light control member has a long afterglow to a non-light-transmitting light control member, and includes a plurality of phosphors having different afterglow characteristics. deposition area of the mixed phosphor is characterized in that at 50 cm ² or more, further twelfth invention is Characterized by being deposited by screen printing - on the system optical member portion having a long afterglow, and a plurality of different phosphors obtained by mixing phosphor mixture afterglow characteristics subscriptions.

Further, a thirteenth invention of the present invention relates to an apparatus main body, a light source arranged so as to have a predetermined positional relationship with respect to the apparatus main body, a panel, a louver, a cover, and a cell.
A light control member including at least one selected from the group consisting of a globe and a glove, and a light control member portion irradiated with light from the light source is provided with a long surface on one surface of the base member. It is characterized in that a sheet structure formed by mixing and applying a plurality of phosphors having afterglow and having different afterglow characteristics is attached.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a first embodiment of the present invention will be described with reference to FIGS. In the figure, 1
Is an appliance body of an implantable appliance embedded in the ceiling surface A, for example, has a U-shaped cross section, and has an inner surface formed as a light reflecting surface. In the longitudinal direction on the inner surface side of the upper surface portion 1a of the instrument body 1, a concave portion 1b projecting upward is formed, and the area of the concave portion 1b is 50c.
m ² or more. A mixed phosphor 2 formed by mixing a plurality of phosphors having a long afterglow and having different afterglow characteristics is attached to the concave portion 1b, and a translucent acrylic resin is formed thereon. , Silicone resin and other covering members 3
Are laminated.

The phosphor 2 having long afterglow is, for example, a compound represented by the general formula: MAl ₂ O ₄
M is a phosphorescent phosphor whose mother crystal is a compound comprising at least one metal element selected from the group consisting of calcium, strontium, and barium, and europium (Eu) is used as an activator. Dysprosium (Dy), neodymium (Nd), and the like are used as a coactivator. Some of these phosphors have different afterglow characteristics. For example, a unit having an emission peak at 490 nm.
A strontium aluminate phosphor activated with lopium and dysprosium (Sr ₄ Al ₁₄ O ₂₅ : Eu / Dy) and 520
What is a europium-activated strontium aluminate phosphor (SrAl ₂ O ₄ : Eu) having an emission peak at nm
In the powder state, it exhibits afterglow luminance characteristics as shown in FIG. In the former, the emission color is blue-green (blue-green), and in the latter, the emission color is green (green).
G and G are shown. These phosphors (hereinafter the former are referred to as BG phosphors and the latter as G phosphors) are
It has a sharp attenuation of the afterglow luminance, but has an attenuation characteristic that gradually attenuates after about 10 minutes. And
After turning off the light, the G phosphor has a higher persistence luminance than the BG phosphor until about 10 minutes elapse, but after 10 minutes, the BG phosphor has a greater persistence luminance than the G phosphor. Has occurred.

The luminance characteristics of these phosphors are affected by the mixing ratio of the BG phosphor and the G phosphor, the area covered, the average particle size, and the like. For example, the average particle size of these phosphors Is set to 2 to 12 μm,
m or more, and the afterglow luminance can be increased by selecting a large particle size.

Also, a plurality of straight tube-shaped fluorescent lamps 4 as light sources are arranged inside the fixture body 1 so as to have a predetermined positional relationship with the fixture body. In addition, as a light source, a light bulb and an HID lamp can be used in addition to a fluorescent lamp. Here, the HID lamp, H igh I nten
sity D ischarge (high intensity discharge) lamp abbreviation generally refer high pressure sodium lamp, a metal halide lamp, a mercury lamp.

In the lighting fixture of this configuration, the width is 20 mm.
A mixed phosphor 2 obtained by mixing a BG phosphor and a G phosphor at a weight ratio of 1: 1 is coated on a concave portion 1b having a length of 900 mm and a depth of 2 mm by screen printing, spraying, brushing, or the like. At the same time, a transparent polyethylene terephthalate (PET) resin (3)
When the 40 fluorescent lamp was turned on for 2 hours continuously and then turned off, the afterglow illuminance (10 m
The illuminance at a point m away was 0.2 (Lx). 2
Even after 4 hours, 0.05 (L
x) Illuminance of the order was obtained. However, if the area of the concave portion 1b is about 50 cm ² , illuminance recognizable as a sign can be obtained.

In particular, this lighting fixture has been turned off for 10 minutes.
Up to about 10 minutes, the green light emitted a strong light.
After a lapse of minutes, blue green shows a predominant luminescent color,
Not only can it function as a sign, but it can also create a fantastic space in which the color tone of the lighting changes in the unlit space. Therefore, by combining with a phosphor that emits a luminescent color such as red in addition to blue and green, further various effects can be achieved.

Also, in the event of an emergency, even if the fluorescent lamp 4 is damaged, the fluorescent substance 2 has an afterglow (light emission) on the upper surface 1a of the instrument body 1, so that a sign for evacuation is required. It can be used as such.

Furthermore, since the fluorescent lamp 4 in this lighting device does not use any fluorescent material having a long afterglow, a predetermined brightness can be obtained, and the number of installed lighting devices needs to be increased. There is no.

FIG. 3 shows a second embodiment of the present invention. In the flat part on the inner surface side of the upper surface 1a of the instrument body 1, a BG phosphor and a G phosphor are mixed at a weight ratio of 1: 1. The mixed phosphor 2 mixed in 1 is screen-printed by using a silk screen so that the adhered area becomes 50 cm ² or more. In addition, the mixed phosphor 2 is used for screen printing,
It can also be applied by spraying, electrostatic coating, brush coating, dip coating, or the like. In particular, in the case of spraying, for example, a mixture of the melamine resin, acrylic resin, epoxy resin, or the like and the mixed phosphor 2 mixed at a ratio of 1: 1 is used, but the mixing ratio can be appropriately changed. Further, the surface of the mixed phosphor 2 can be covered with the covering member 3.

FIG. 4 shows a third embodiment of the present invention, which is basically the same as the embodiment shown in FIG. The difference is that a BG phosphor is screen-printed on a flat portion on the inner surface side of the upper surface portion 1a of the device body 1 to form a first phosphor layer 2a, and the BG phosphor is formed on the first phosphor layer 2a. The second phosphor layer 2b is laminated and formed by screen printing the G phosphor. In addition, in addition to screen printing, spraying, brushing, etc., can be adopted as the method of applying. Further, the surface of the mixed phosphor 2 can be covered with a covering member 3 as shown in FIG.

FIGS. 5 and 6 show a fourth embodiment of the present invention, which is basically the same as the embodiment shown in FIG. The difference is that the sheet structure 5 including the mixed phosphor 2 is attached to a flat portion on the inner surface side of the upper surface 1a of the instrument body 1. The sheet structure 5 includes, for example, a base member 6 having light reflectivity, the mixed phosphor 2 attached to one surface of the base member 6, and the other of the base member 6. And an adhesive layer 7 adhered to the surface. It is desirable that the surface of the mixed phosphor 2 be covered with the covering member 3 and that a release paper be disposed on the surface of the adhesive layer 7.

FIG. 7 shows a fifth embodiment of the present invention, in which an upper surface 1a of an instrument body 1 has an opening 1 for locking.
c is formed, and the opening 1c has an area of 50
Decorative plate 8 made of acrylic resin set to at least cm ²
Are mounted using locking claws 8b, 8b extending from the main body 8a. A plurality of phosphors 2 having long afterglow and having different afterglow characteristics are mixed and dispersed in the decorative plate 8 within a range of 50% of the acrylic resin weight. This embodiment can be applied in place of the structure for attaching the mixed phosphor 2 in the lighting apparatus shown in FIG. 1, and can be replaced with polycarbonate (PC) resin, styrene resin,
ABS resin and the like can also be used.

According to this embodiment, when the lamp is turned off, the main body 8a of the decorative plate 8 exhibits afterglow, so that it can be used as a sign for evacuation. In particular, when the present invention is applied to a household lighting device, a bead ball of about 5 W which is usually mounted for a nightlight can be omitted, so that not only the cost of the device can be reduced but also a power saving effect can be obtained.

FIG. 8 shows a sixth embodiment of the present invention, in which a transparent panel 9 made of resin is arranged at the lower opening of the instrument body 1 embedded in the ceiling surface A. ing. The panel 9 includes, for example, a transparent acrylic resin, P
C resin, styrene resin, ABS resin and the like are used, and a plurality of phosphors 2 having long afterglow and having different afterglow characteristics are mixed and dispersed up to 50% of the resin weight. I have. The mixing amount is preferably about 20% or less, particularly 10% or less from the viewpoint of the light transmittance and appearance of the panel 9.
In particular, in the case of coloring treatment such as milky white, it is preferable to further reduce the mixing amount.

In particular, a plurality of phosphors 2 having long afterglow and having different afterglow characteristics are mixed in an acrylic resin panel 9 by 20% of the resin weight, and two FL40 fluorescent lamps are continuously connected to one another. After turning on for a time, the light was turned off. The afterglow illuminance 300 seconds after the light was turned off was 0.27 (Lx). Even after 10 hours, an illuminance of about 0.07 (Lx) was obtained. Therefore, if it is applied to general lighting fixtures where the installation of guide lights and emergency lights is obliged by the Fire Service Law and the Building Standards Law, even if a power outage should occur due to a disaster or the like, the remaining brightness will be sufficient to identify objects. Light is obtained, and smooth and quick evacuation becomes possible.

In addition, since the afterglow color of the panel 9 changes over time after the light is turned off, the lighting fixture can produce a fantastic space in which the color tone of the light changes in the light-out space. Therefore, by combining with a phosphor that emits a luminescent color such as red in addition to blue and green, further various effects can be achieved.

FIGS. 9 and 10 show a seventh embodiment of the present invention, in which a plurality of louver plates 10a are fixed at the lower opening of the instrument body 1 embedded in the ceiling surface A. The louvers 10 are juxtaposed at the intervals. In particular, a mixed phosphor 2 formed by mixing a plurality of phosphors having long afterglow and having different afterglow characteristics is applied to the surface of the louver plate 10a. The surface of the mixed phosphor 2 is shown in FIG.
Can be coated with a coating member 3 as shown in FIG. According to this embodiment, effects similar to those of the above embodiment can be obtained.

FIG. 11 shows an eighth embodiment of the present invention, in which a substantially flat appliance body 1A is fixed to a ceiling surface Aa, and an end portion thereof is bent into an L shape. Support portion 1d is formed. A pair or a plurality of pairs of sockets 11 are supported by the device main body 1A, and one or a plurality of fluorescent lamps (light sources) 4 are mounted therebetween. The instrument body 1A is covered with, for example, a box-shaped light-transmitting cover 12, and is fixed by screwing a decorative screw 13 into the support portion 1d at an end. A plurality of phosphors 2 having long afterglow and having different afterglow characteristics are mixed and dispersed in the cover 12 with a limit of 50% of the cover weight. The plurality of phosphors 2
Is preferably about 20% or less, particularly 10% or less, from the viewpoint of the light transmittance and appearance of the cover 12.

According to this embodiment, the luminaire is mainly used in ordinary households,
After turning off the lights, it is used as a nightlight. For this reason, about 5 W of a bead ball conventionally attached to this kind of appliance can be completely omitted, and not only can the appliance cost be reduced, but also power can be saved. In an emergency, it can be used as an evacuation sign or guide light.

In addition, since the afterglow color of the cover 12 changes with the lapse of time after the light is turned off, the lighting fixture can produce a fantastic space in which the color tone of the light changes in the light-out space. Therefore, by combining with a phosphor that emits a light color such as red in addition to blue and green,
Furthermore, various productions are possible.

FIG. 12 shows a ninth embodiment of the present invention, in which a plurality of lamp holders are provided on the lower surface of an appliance body 1B formed by abutting a pair of bowl-shaped bodies having a flange portion. 14 is fixed, and the ring-shaped fluorescent lamp 4A is mounted. On the other hand, a cord 15 for suspension is led out from the upper surface side of the appliance body 1B, and is connected / coupled to a connector (not shown) on the ceiling surface. On the flange portion of the instrument body 1B, there is mounted a sheath 16 made of a resin material such as styrene or acrylic having openings at upper and lower portions. A plurality of phosphors 2 having long afterglow and having different afterglow characteristics are mixed and dispersed in this side 16 with a limit of 50% of the cover weight. It should be noted that the amount of the phosphor 2 mixed is 20 from the viewpoint of the light transmittance of the side 16 and the appearance state.
% Or less, particularly 10% or less. However, when the number of ring-shaped fluorescent lamps 4A to be used is two or more, the number,
Depending on the watt size of the lamp, the weight can be further reduced or increased up to 50%.

According to this embodiment, this luminaire is used in ordinary households, and the annular fluorescent lamp 4 is used.
After A is turned off, it is used as a nightlight. For this,
Conventionally, a bead ball of about 5 W attached to this kind of equipment can be omitted completely, and not only reduction of equipment cost but also power saving can be achieved. In an emergency, it can be used as an evacuation sign or guide light.

When the decorative plate 8 shown in FIG. 7 is applied to the lower surface of the instrument body 1B of the present embodiment, accents can be given to the instrument, and the design of the instrument can be varied.

In particular, this lighting fixture can produce a fantastic space in which the color tone of the lighting changes in the light-out space, since the afterglow color of the side 16 changes with time after the light is turned off. . Therefore, by combining with a phosphor that emits a luminescent color such as red in addition to blue and green, further various effects can be achieved.

FIG. 13 shows a tenth embodiment of the present invention, which is basically the same as the embodiment shown in FIG. The difference is that the sheet structure 5
Is affixed, and mixing of a plurality of phosphors into the side 16 is omitted.

FIG. 14 shows an eleventh embodiment of the present invention, in which a heat-resistant socket (apparatus main body) 11A is fixed to a ceiling surface Aa, and a bulb (light source) 17 is mounted. I have. The bulb 17 is covered with a glove 18 made of a resin material such as styrene or acrylic. A plurality of phosphors 2 having long afterglow and having different afterglow characteristics are provided on the glove 18 by 50% of the glove weight.
Is mixed and dispersed to the limit. The amount of the fluorescent substance 2 to be mixed is set at 20 from the viewpoint of the light transmittance of the glove 18 and the appearance.
% Or less, particularly preferably 10% or less.

The present invention is not limited to the above-described embodiment. For example, the light source may be an HID lamp in addition to a straight tube fluorescent lamp, a ring-shaped fluorescent lamp, a compact fluorescent lamp, a compact fluorescent lamp and the like. it can. Phosphors having a long persistence are described in the above examples, europium, neodymium, yttrium-activated calcium aluminate phosphor (CaAl ₂ O ₄ : Eu / Nd / Y), europium, Neodymium-activated barium aluminate phosphor (Ba)
Al ₂ O ₄ : Eu / Nd) having long afterglow characteristics and having different afterglow characteristics can all be used.
When these phosphors are mixed, the mixing ratio of each can be appropriately set according to the particle size, the light emission range, the change mode of the afterglow color tone when the light is turned off, and the like. Further, as the light control member, a material other than those described in the above embodiment can be used.

[0047]

Next, the inventor of the present invention used the lighting fixture shown in FIG. 12 in which FCL32 was used as a ring-shaped fluorescent lamp, and europium and dysprosium having an emission peak at 490 nm in a transparent acrylic resin as a seed. Activated strontium aluminate phosphor (Sr ₄ Al ₁₄ O ₂₅ : Eu / D
y) and a europium-activated strontium aluminate phosphor (SrAl) having an emission peak at 520 nm.
₂ O ₄ : Eu) at a weight ratio of 1: 1 was mixed and dispersed in 8% of the resin weight. Then, the device was turned on for one hour in a normal use state, and the change in illuminance after the light was turned off was measured. The result shown in FIG. 15 was obtained. The illuminance was 10
The illuminometer was placed at a distance from the side of mm and measured.

As is apparent from this result, 30 minutes after the light was turned off.
The afterglow illuminance at 0 second is 0.2 (Lx), which indicates that the level is such that an object can be sufficiently identified. It has been experimentally confirmed that the illuminance at which an object can be identified is approximately 0.05 (Lx). ) The above illuminance was maintained.

Also, after turning off the light, a strong afterglow of green is exhibited until about 7 minutes, and after about 14 minutes, the blue light is emitted.
Green afterglow became stronger. It was recognized that the color tone of the afterglow was reversed in about 10 minutes.

[0050]

As described above, according to the present invention, a plurality of phosphors having a long afterglow and having different afterglow characteristics exist in a portion irradiated with light emitted from a light source. To be
After the lamp is turned off, an illuminance that can identify an object or an illuminance that can be recognized as a sign is obtained for a long time, and can be effectively used as guide light in an emergency or as nightlight light.

Even if a light source, for example, a glass bulb of a fluorescent lamp is broken and scattered, a plurality of phosphors having a long afterglow and having different afterglow characteristics may be present in portions other than the fluorescent lamp. , It is possible to obtain illuminance enough to identify an object even in a damaged state or illuminance enough to be recognized as a sign. This can contribute to guidance in an emergency or the like.

In addition, since the light source, for example, the light emitting layer of the fluorescent lamp does not contain a phosphor having a long persistence,
The original brightness of the fluorescent lamp can be maintained. Therefore, the number of luminaires to be installed does not increase, and the increase in the economic burden can be eliminated.

In particular, the plurality of phosphors have a long persistence,
In addition, since a device with different afterglow characteristics is used, after the lights are turned off, the emission color of the afterglow changes according to the elapsed time, creating a fantastic space where the color tone of the lighting changes in the unlit space. Can be. Therefore, it can be applied to fields other than evacuation guidance at the time of a power failure.

[Brief description of the drawings]

FIG. 1 is an essential part cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is an attenuation characteristic diagram of afterglow luminance of phosphors having different afterglow characteristics.

FIG. 3 is a sectional view of a main part showing a second embodiment of the present invention.

FIG. 4 is an enlarged sectional view of a main part showing a third embodiment of the present invention.

FIG. 5 is an essential part cross-sectional view showing a fourth embodiment of the present invention.

FIG. 6 is an enlarged sectional view of the sheet structure shown in FIG. 5;

FIG. 7 is an enlarged sectional view of a main part showing a fifth embodiment of the present invention.

FIG. 8 is a sectional view of a main part showing a sixth embodiment of the present invention.

FIG. 9 is a sectional view of an essential part showing a seventh embodiment of the present invention.

FIG. 10 is an enlarged sectional view of a main part of FIG. 9;

FIG. 11 is a sectional view of an essential part showing an eighth embodiment of the present invention.

FIG. 12 is a sectional view showing a main part of a ninth embodiment of the present invention.

FIG. 13 is a sectional view showing a main part of a tenth embodiment of the present invention.

FIG. 14 is a sectional view showing a main part of an eleventh embodiment of the present invention.

FIG. 15 is a diagram showing the afterglow illuminance with respect to the elapsed time after turning off the light.

[Explanation of symbols]

 1, 1A, 1B, (11A) Instrument main body 1b Recess (light control member) 2, 2a, 2b Phosphor having long persistence 4 Straight tube fluorescent lamp (light source) 4A Ring-shaped fluorescent lamp (light source) 5 -Gate structure 6 Base member 7 Adhesive layer 8 Decorative plate 9 Panel (light control member) 10 Louver (light control member) 12 Cover (light control member) 16 Side (light control member) 17 Light bulb (Light source) 18 globe (light control member)

Claims (13)

[Claims] 1. An apparatus main body and a light source arranged so as to have a predetermined positional relationship with respect to the apparatus main body, wherein a long afterglow is provided in an apparatus main body portion irradiated with light from the light source. And a plurality of phosphors having different afterglow characteristics. 2. The device main body has a long afterglow,
2. The lighting device according to claim 1, wherein a plurality of phosphors having different afterglow characteristics are mixed or each phosphor is laminated and applied. 3. The device main body portion has a long afterglow,
3. The luminaire according to claim 1, wherein a plurality of phosphors having different afterglow characteristics are applied in a mixed state or each phosphor is separately applied by screen printing. 4. An area in which a plurality of phosphors having the long persistence and having different persistence characteristics are attached to the main body of the device.
luminaire according to claim 1, characterized in that m ² or more. 5. An apparatus main body, comprising: a light source disposed so as to have a predetermined positional relationship with respect to the apparatus main body; A lighting apparatus characterized in that a sheet structure formed by mixing and applying a plurality of phosphors having a long afterglow and having different afterglow characteristics is adhered to the surface of (1). 6. The lighting fixture according to claim 5, wherein an adhesive layer is formed on the other surface of the base member of the sheet structure and adhered to the fixture body. 7. An appliance main body, a fluorescent lamp arranged so as to have a predetermined positional relationship with respect to the appliance main body, and a resin decoration plate attached to the appliance main body, wherein the decoration plate has a long afterglow. A lighting device characterized by mixing a plurality of phosphors having different properties and having different persistence characteristics. 8. An apparatus main body, a light source arranged so as to have a predetermined positional relationship with respect to the apparatus main body, and a panel, a louver, a cover, a shade, and a glove. And a light control member including at least one of the light control members, wherein a plurality of phosphors having long afterglow and having different afterglow characteristics are mixed or attached to the light control member. . 9. The light source may be a fluorescent lamp, a light bulb, a HID.
9. The lighting fixture according to claim 1, wherein the lighting fixture is at least one selected from the group consisting of lamps. 10. The mixing amount of a mixed phosphor composed of a plurality of phosphors having a long afterglow and having different afterglow characteristics to a light-controlling member having a light-transmitting property among the light-controlling members, 9. The lighting device according to claim 8, wherein the weight is set to 50% or less of the light control member weight. 11. A mixed phosphor composed of a plurality of phosphors having different afterglow characteristics and having a long afterglow to a non-light-transmitting light control member among the light control members. 9. The lighting device according to claim 8, wherein the size is 50 cm ² or more. 12. A mixed phosphor formed by mixing a plurality of phosphors having a long persistence and having different persistence characteristics by screen printing on the light control member. The lighting fixture according to claim 8, wherein 13. An apparatus main body, a light source arranged so as to have a predetermined positional relationship with respect to the apparatus main body, a panel and a loop.
A light control member including at least one selected from the group consisting of a bar, a cover, a seed, and a glove; A lighting apparatus characterized in that a sheet structure formed by mixing and applying a plurality of phosphors having long afterglow and having different afterglow characteristics is attached to one surface of a base member.