JPH09245509A - Lighting equipment and molding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold brightness for a fixed time after a light source is cut off, by providing a light accumulating substance on a surface of a shade arranged in the periphery of the light source, so as to eliminate necessity for providing the light accumulating substance in the light source of a lamp or the like. SOLUTION: In a surface of a shade 81, that is, at least in one surface side of an inner or outer surface side, a light accumulating substance 82 (light accumulating paint or the like) is prescriptively arranged. In the case of providing the substance 82 in an outer surface of the shade 81, a bonding agent (or light accumulating paint) containing the substance 82 is applied to the outer surface of the shade 81. Here, a bonding material is used with any one acrylic system, vinyl acetate system, fluororesin system, silicone resin system epoxy resin system, urethane resin system, etc. In this way, even in the case of replacing a light source 83 due to its life or damages, the substance 82 provided on the surface of the shade 81 can be continued to be used. Accordingly, for fixed time after the light source is interrupted, brightness in the atmosphere can be held.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of using a phosphorescent substance, and more specifically, to use a phosphorescent substance as a shade or a reflector.
Alternatively, the present invention relates to a lighting device provided on the surface of the main body to which the light source is attached.

[0002]

2. Description of the Related Art For example, as an illumination means provided with a phosphorescent substance (referred to as a phosphorescent phosphor, a phosphorescent paint, a fluorescent pigment, etc.) that absorbs and stores sunlight and light from a fluorescent lamp and gradually emits and emits light after turning off the light. , A structure in which a phosphorescent substance is arranged on the surface of a tube near at least one electrode of a rare gas cold cathode discharge lamp is disclosed in Japanese Patent Application Laid-Open No. 2-30.
No. 270 publication.

In addition, the inner or outer surface of a glass tube for fluorescent lamps is actually used as a means for keeping the brightness of the atmosphere for a certain period of time after the power is turned off by a phosphorescent substance typified by copper activated zinc sulfide (ZnS: Cu). No. 5,410,58 is proposed.

[0004]

SUMMARY OF THE INVENTION However, Japanese Patent Application Laid-Open No. 2-3
Japanese Laid-Open Patent Publication No. 0270 improves the lighting start characteristic.

Further, Japanese Utility Model Laid-Open No. 5-41058 requires a lamp provided with a light-storing substance when the fluorescent lamp is replaced due to its life or damage.

An object of the present invention is to provide a luminaire which does not require a light source such as a lamp to be provided with a light-storing substance and can maintain the brightness of the atmosphere for a certain period of time after the power is turned off.

[0007]

In order to solve the above-mentioned problems, the luminaire according to the present invention has a construction in which at least one of the inner surface and the outer surface of a shade arranged around the light source is provided with a luminous substance.

Further, the reflecting mirror located at the rear part of the light source or the surface of the main body to which the light source is attached is provided with a light storing substance.

As an example of the means for providing the surface with the phosphorescent substance, an adhesive (or phosphorescent paint) containing the phosphorescent substance is applied to the surface of the luminaire main body to which a shade, a reflecting mirror or a light source is attached. As another means, a phosphorescent substance is applied or embedded on the surface of a molded product in the process of molding a shade or a reflecting mirror, for example, in the injection molding process or the blow molding process. A resin member, a glass member, or the like is used as a member forming a molded product such as a shade.

Adhesives containing a phosphorescent substance include thermosetting acrylic resin members (for example, acrylic melamine resin), alkyd melamine resin members, vinyl acetate resins, fluororesin resins, silicone resin resins, or epoxies. Resin system or UV resin (UV curable resin)
Any one of the organic binders such as

The phosphorescent substance contained in the adhesive is, for example, a phosphorescent paint (a high-purity alumina as a main material mixed with rare earth elements and burned at 1300 degrees Celsius (Nekoku Special Chemistry / N night light)). , Or SrAl ↓ 2O ↓ 4: Eu
(Emission peak wavelength 520 nm, afterglow brightness 300 mcd /
m ↑ 2 (brightness after 20 minutes of irradiation with 200 LX for 4 minutes),
An afterglow time of 2000 minutes or more (a time required to decay to 0.32 mcd / m ↑ 2)), or any member such as ZNs: Cu may be used.

The minimum coating thickness of the adhesive containing the light-storing substance is about 0.1 μm to 30 μm.

The mixing ratio of the phosphorescent substance mixed in the adhesive is 5 W
% To 50 W%. In that case, the powder particle size is in the range of 0.01 μm to 200 μm.

According to the present invention, due to the above-described structure, the brightness of the atmosphere is maintained for a certain period of time after the power is turned off.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is a luminaire characterized in that a surface of a shade is provided with a phosphorescent substance. It has the effect of maintaining brightness.

The invention according to claim 2 is a lighting device characterized in that a phosphorescent substance is embedded in the surface of a shade, and has the function of maintaining the brightness of the atmosphere for a certain period of time after the power is turned off. Have.

According to a third aspect of the present invention, there is provided a lighting device characterized in that an adhesive material containing a phosphorescent substance is applied to the surface of the shade, and the brightness of the atmosphere is maintained for a certain period after the power is turned off. Has the effect of maintaining.

According to a fourth aspect of the invention, the adhesive is made of an acrylic type, vinyl acetate type, fluororesin type, silicon resin type, epoxy resin type, urethane resin type, polyester resin type, phenol resin type, or polyvinyl chloride type adhesive. The lighting fixture according to claim 3, wherein the lighting fixture has a function of maintaining the brightness of the atmosphere for a certain period of time after the power is turned off.

According to a fifth aspect of the present invention, there is provided a luminaire characterized in that the surface of the reflecting mirror is provided with a light-storing substance, and the function of maintaining the brightness of the atmosphere for a certain period of time after the power is turned off. Have.

The invention according to claim 6 is a lighting fixture characterized in that a phosphorescent material is embedded in the surface of a reflecting mirror, and the function of maintaining the brightness of the atmosphere for a certain period after the power is turned off. Have.

According to a seventh aspect of the present invention, there is provided a lighting device characterized in that an adhesive material containing a light-storing substance is applied to the surface of a reflecting mirror, and the brightness of the atmosphere is kept constant for a certain period after the power is turned off. It has the effect of maintaining the quality.

The invention according to claim 8 is a luminaire, characterized in that the surface of the main body to which the light source is attached is provided with a phosphorescent substance, and the brightness of the atmosphere is maintained for a certain period of time after the power is turned off. Has the effect of keeping.

The invention according to claim 9 is a lighting fixture characterized in that a light-storing substance is embedded in the surface of a main body to which a light source is attached, and the brightness of the atmosphere is maintained for a certain period of time after the power is turned off. Has the effect of.

According to a tenth aspect of the present invention, there is provided a luminaire characterized in that an adhesive material containing a phosphorescent substance is applied to the surface of a main body to which a light source is attached. It has the effect of keeping the brightness of.

In the method of molding a molded article provided with a phosphorescent substance according to the eleventh aspect, a mold having a movable part that can freely move back and forth is prepared in at least a partial region of the cavity, and the molding material is supplied to the cavity. After that, the movable part is retracted to form a void, and a gas containing a phosphorescent substance is supplied to the void to dispose the phosphorescent substance in at least a partial region of the molded article. Is characterized by
It does not change the characteristics of the resin member used for injection molding.
For example, without changing the molding characteristics of the resin member, an arbitrary structure or curved surface shape can be configured according to the variety of designs and the purpose of use. Of course, the quality of the molded product does not deteriorate. In addition, a coating layer of phosphorescent material can be formed in the process of injection molding,
The work for disposing after molding is unnecessary. Therefore, the process is simplified and the cost can be reduced.

According to a twelfth aspect of the present invention, there is provided a method for molding a molded article provided with a phosphorescent substance, characterized in that the gas according to the eleventh aspect includes an adhesive. Layers can be formed and fixed securely. Further, the work for constructing the coating layer is unnecessary. Therefore, the process is simplified and the cost can be reduced.

According to the method of molding a molded article provided with a phosphorescent substance according to claim 13, a pair of molds including a movable mold and a fixed mold are prepared, and a molding material is supplied to a cavity of the mold to mold the molded product. And then, the movable mold is retracted to provide a void portion, and a gas containing a phosphorescent substance is supplied to the void portion to dispose the phosphorescent substance on the surface of the molded article. Therefore, a coating layer of a phosphorescent substance can be formed in the process of injection molding, and it is securely fixed. Further, the work for constructing the coating layer is unnecessary. Therefore, the process is simplified and the cost can be reduced.

According to a fourteenth aspect of the present invention, there is provided a method for molding a molded article having a phosphorescent substance, a pair of molds including a movable mold and a fixed mold is prepared, and a molding material is supplied to a cavity of the mold. , The movable die is retracted to form a void portion, a light-storing substance is supplied to the void portion, and further, by moving the movable die forward, the light-storing substance is pressed to be embedded in the vicinity of the surface of the molded product. This is characterized in that the coating layer of the phosphorescent substance can be formed and firmly fixed in the process of injection molding. Further, the work for constructing the coating layer is unnecessary. Therefore, the process is simplified and the cost can be reduced.

A blow molding method for a molded article provided with a phosphorescent material according to claim 15 is a blow molding method in which an extruded parison is sandwiched between molds and a pressurized gas is blown into the parison, wherein the mold is used. In the process of sandwiching the parison, between the mold and the outer peripheral surface of the parison, a pressure-sensitive gas containing a phosphorescent material is introduced to provide a phosphorescent material on the outer peripheral surface of the parison. In the process, a coating layer of a phosphorescent substance can be formed and fixed securely. Further, the work for disposing the phosphorescent substance after molding is unnecessary. Therefore, the process is simplified and the cost can be reduced.

A blow molding method for a molded article provided with a phosphorescent substance according to claim 16 is a blow molding method in which an extrusion-molded parison is sandwiched between molds and a pressurized gas is blown into the parison, wherein the mold is used. In the process of sandwiching the parison, the pressure-sensitive gas containing the phosphorescent substance is introduced into the parison to arrange the phosphorescent substance on the inner peripheral surface of the parison. A coating layer can be formed and fixed securely. Further, the work for disposing the phosphorescent substance after molding is unnecessary. Therefore, the process is simplified and the cost can be reduced.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 9. (Embodiment 1) FIG. 1 is a perspective view of a lighting apparatus according to Embodiment 1 of the present invention. As shown in FIG. 1, the luminaire of the present invention includes a light bulb 83, a holding portion 84 for holding the light bulb 83, and a shade 81 located around the light bulb 83 for protecting the light bulb and diffusing light. .

The member forming the shade 81 may be made of glass, or any light transmitting member such as acrylic, polycarbonate, vinyl chloride or urea resin.
The light transmitting member may be arbitrarily implemented such as transparent, milky white, frosted glass, or opaque.

On the surface of the shade 81, that is, on at least one of the inner surface side and the outer surface side, a phosphorescent substance 82 (a phosphorescent paint or the like) is disposed in a predetermined manner. In the case of FIG. 1, the outer surface is provided with the light-storing substance.

As a first means for providing the luminous material on the outer surface of the shade 81, an adhesive (or luminous paint) containing the luminous material is applied to the surface of the glove.

As the adhesive containing the phosphorescent substance, a thermosetting acrylic resin member (for example, acrylic melamine resin) is used.
Or alkyd melamine resin member, vinyl acetate-based, fluororesin-based, silicon resin-based, urethane resin-based, polyester resin-based, phenol resin-based, or polyvinyl chloride-based synthetic resin member (or organic binder) One of the above.

Examples of the light-storing substance to be contained in the adhesive include, for example, Radical Special Chemicals / N Luminescent, or SrAl ↓ 2O ↓ 4:
Eu (emission peak wavelength 520 nm, afterglow brightness 300 mc
d / m ↑ 2 (brightness after 20 minutes of irradiation with 200 LX for 4 minutes), afterglow time of 2000 minutes or more (0.32 mcd / m ↑
2)), or ZNs: C
Any member such as u or one or two kinds of sulfide-based phosphorescent substance such as ZnS, CdS, CaS, (ZnCd) S may be used.

The minimum coating thickness of the adhesive containing the light-storing substance is about 0.1 μm to 30 μm.

The compounding ratio of the phosphorescent substance mixed with the adhesive is 5 W
% To 50 W%. In addition to the above-mentioned adhesive, a method of using an epoxy resin-based adhesive may be used as a method of supporting the light-storing substance. In this case, the phosphorescent substance is dispersed in an adhesive containing an epoxy resin and then applied to the surface of the shade. Then, after primary drying at 30 to 50 degrees Celsius to evaporate the thinner, secondary drying is performed at 80 to 200 degrees Celsius to form a phosphorescent material layer.

Needless to say, as the coating method, any means such as dip coating, spray coating, electrostatic coating or powder coating may be used.

Further, an organic adhesive or a water-soluble adhesive other than the above may be used as a means for supporting the phosphorescent substance on the surface of the shade.

Further, the UV resin may be made to contain a phosphorescent substance and applied on the surface of the shade.

Further, as a second means for providing the luminescent material on the outer surface of the shade 81, as shown in FIG. 7, a method of applying or burying the luminescent material on the surface of the molded article in the injection molding process may be used. .

FIG. 7 is a sectional view showing the concept of the injection molding apparatus. In FIG. 7, resin for forming a shade is injected into the cavity of a pair of molds composed of a fixed mold 122 and a movable mold 123. A small amount (several tens μm to several hundreds μm) of the movable die 123 is retracted to a position indicated by a chain double-dashed line to provide a void portion on the side forming the outer surface of the shade (not shown). By injecting a gas containing a phosphorescent substance from the phosphorescent substance injecting device 41E into this void, a coating layer of the phosphorescent substance is formed on the outer surface of the shade.

The powder particle size of the phosphorescent substance contained in the gas is in the range of 0.01 to 200 μm.

The timing of injecting the gas containing the light-storing substance into the inner surface of the void is arbitrary. For example, when injecting a gas containing powder particles of a phosphorescent substance,
It is carried out before the resin in the mold cavity is cooled and solidified.

Of course, the gas containing the phosphorescent substance may be injected after the resin is cooled and solidified. In this case, a binder, an adhesive resin, a diluting solvent or the like may be included in the gas so that the phosphorescent substance is not peeled off from the adhered surface.

When the high-pressure gas containing the light-storing substance does not contain the binder, the adhesive resin, or the diluting solvent, the mold that had been retracted is advanced again after the injection to press the coated surface of the light-storing substance, The material layer may be embedded on or near the surface of the molded product.

Further, the nozzle for injecting the light-storing substance is not limited to one place, but may be arbitrarily arranged in a plurality of places. As the solvent, any solvent such as alcohol, toluene, thinner, and acetone is used, and as the adhesive, epoxy resin, acrylic resin, vinyl chloride resin, ABS resin, PS resin, polyamide resin, polycarbonate resin, styrene resin, etc. , A predetermined amount of any resin member may be included.

Furthermore, other than the above, a member that can be injection-molded to form a molded product (sade) may be arbitrarily implemented. For example, a resin member such as ABS, PS, PP, PE or PET may be used. Of course, biodegradable plastic may be used.

For example, a denatured protein material such as gluten, a material obtained by kneading paper and a denatured protein, a material obtained by kneading potato starch with water, a natural polymer Novamont (trade name Matterby / Nippon Synthetic Chemical Industry), microbial productivity Polyester-based ICI (trade name: Biopol / ICI Japan), chemically synthesized aliphatic polyester (trade name: Bionole / Showa High Polymer) and the like may be optionally used.

According to the present invention, the characteristics of the resin member used for injection molding are not changed by the above structure. For example,
An arbitrary structure or curved surface shape can be configured according to the variety of designs and the purpose of use without changing the molding characteristics of the resin member. Furthermore, the quality of the molded product does not deteriorate.

Furthermore, the coating layer of the phosphorescent substance can be formed in the process of injection molding, and the work of disposing the phosphorescent substance is unnecessary.
Therefore, the process can be simplified and the cost can be reduced.

As a third means for providing the outer surface of the molded product (sade) with the phosphorescent substance, as shown in FIGS. 8 to 9, a method of applying or burying the phosphorescent substance on the surface of the molded product in the process of blow molding. May be used.

More specifically, a plasticized parison is supplied into the mold, and then a pressure fluid containing a phosphorescent substance is introduced between the outer peripheral surface of the parison and the mold cavity to form a molded product (sade). In this process, a blow molding method is used in which a coating layer of a phosphorescent substance is formed on the outer peripheral surface of the molded product.

For example, a high-pressure gas (high-pressure gas) composed of compressed air or the like having a pressure of 8 kg / cm ² or less has an outer dimension of 0.01
It is supplied in the form of being mixed with a powdery particle-shaped light storing substance composed of micron meter to 100 micron meter.

The timing at which the light-storing substance is supplied to the blow molding material (parison) is arbitrary. For example, in the case of supplying a high-pressure gas containing a powdery particle-shaped phosphorescent substance, it is carried out before the resin in the mold cavity is cooled and solidified.

Of course, after molding the shade, the high pressure gas containing the phosphorescent substance may be continuously supplied before the shade is cooled and solidified.

It is also possible to supply a pressurized gas into the parison in advance and then introduce the high-pressure gas containing the light-storing substance between the outer peripheral surface of the parison and the mold cavity.

It is also possible to introduce a high-pressure gas containing a light-storing substance between the outer peripheral surface of the parison and the mold cavity, and then introduce a pressurized gas into the parison for molding. Of course, the pressurized gas may be simultaneously supplied to the inside of the parison and the outside of the parison.

In any of the above cases, it is desirable that the blow molding material (parison) has adhesive force and supplies the pressure fluid containing the phosphorescent substance while the ability to adhere the phosphorescent substance is present.

It is also possible to inject high-pressure gas containing a phosphorescent substance after the shade is cooled and solidified.

Further, the high pressure gas may contain a binder such as PVA (polyvinyl alcohol), an acrylic type, a polyurethane type or the like, an adhesive resin, a diluting solvent or the like so that the phosphorescent substance is not separated from the adhered surface. That is, it goes without saying that any solvent such as alcohol, toluene, thinner, or acetone, or PVA (polyvinyl alcohol) may be mixed, and epoxy resin, acrylic resin, vinyl chloride resin, ABS resin, PS resin, A predetermined amount of any resin member such as a polyamide resin, a polycarbonate resin, a styrene resin, a thermoplastic resin such as a polybutylene terephthalate resin may be contained.

As the pressure fluid, nitrogen gas, an inert gas (eg, argon gas) or the like may be optionally used in addition to compressed air.

As described above, in the method of molding a molded article provided with a phosphorescent substance according to the embodiment of the present invention, the coating layer of the phosphorescent substance can be formed during the molding process, and the work of forming the coating layer in a separate step is unnecessary. To do. Therefore, the process can be simplified and the cost can be reduced.

Next, the blow molding device and the molding process will be described with reference to the drawings. FIG. 8 shows a conceptual diagram of the essential parts of the blow molding apparatus. The screw cylinder 206 is provided with heating means and a hopper (not shown), and the thermoplastic resin member 210 supplied from the hopper is heated by the screw cylinder 206. Accumulator 204 while being melted
Is sent to the plunger 240.

Below the accumulator 204, a pair of split molds 201, 201 having a predetermined recess (cavity) and formed to be openable and closable are disposed. The molten resin member 210 extruded by the plunger 240 is molded as a cylindrical parison 211 by the die 205 provided at the lower end of the accumulator 204, and the mold 20
It is extruded into the gap of 1,201.

When the parison 211 is pushed out to a predetermined length, the driving of the plunger 240 is stopped and the blow pin 202 is inserted into the inner periphery of the parison 211 which can be held between the molds 201, 201. The blow pin 202 communicates with a pressurized air source 203 via a valve or the like (not shown) and supplies only pressurized air.

The supply pipe 231 is formed by a pipe that penetrates the molds 201, 201 and communicates with the light-storing substance 207 alone or with the pump 30 that supplies high-pressure gas containing the light-storing substance 207. Here, when the molds 201, 201 are closed (mold closed) by a driving means (not shown), as shown in FIG.
While it is sandwiched by 01, the lower part has a blow pin 202 on the inner circumference.
It is sandwiched between the molds 201 and 201 in a state where it is projected.

After this, a valve (not shown) is opened, and a high-pressure gas containing the phosphorescent substance 207 alone is supplied from the supply pipeline 231.
Alternatively, a high-pressure gas containing the phosphorescent substance 207 and a binder or the like is supplied to the gap (cavity) between the outer peripheral surface of the parison 211 and the mold to fill the cavity with the phosphorescent substance and also to adhere to the surface of the parison 211.

Next, pressurized air is supplied from the blow pin 202 to the inner peripheral side of the parison 211, and the parison is expanded so as to be in close contact with the shape of the cavity of the mold and molded.

By these processes, the light-storing substance is arranged so as to be embedded in the surface of the molded product in a predetermined manner or to form a coating layer in a predetermined thickness dimension.

Therefore, the film layer of the phosphorescent substance can be formed in the process of injection molding, and it is securely fixed. Further, the work for constructing the coating layer is unnecessary. As a result, the process is simplified and the cost can be reduced.

As described above, the lighting equipment according to the first embodiment of the present invention can maintain the brightness of the atmosphere for a certain period of time after the power is turned off.

When the phosphorescent substance is disposed on the inner surface side of the shade by the blow molding method, a pressure gas containing the phosphorescent substance is introduced into the parison in the process of sandwiching the parison with a mold in FIG. As a result, the phosphorescent substance may be embedded or applied on the inner peripheral surface of the parison.

(Second Embodiment) FIG. 2 is a perspective view of a lighting fixture 40 according to a second embodiment of the present invention.

The luminaire 40 represents the concept of a luminaire used by being attached to the ceiling of a general home or office building. In FIG. 2, reference numeral 41 is a phosphorescent substance, 42 is a fluorescent lamp corresponding to a light source, 43 is a miniature bulb, 44 is a cover for protecting and housing the fluorescent lamp 42, and 45 is a main body to which the fluorescent lamp 42 is attached.

Main body 45 for mounting the light source (fluorescent lamp 42)
A phosphorescent substance 41 having a predetermined film thickness is disposed on the surface of the.
In addition, the main body 45 to which the light source is attached is formed by pressing a metal plate and then applying a finish coating such as white or PS, AB.
It is formed by injection molding an arbitrary resin member such as S, PC or PMMA.

Needless to say, the cover 44 does not cover a light source such as a fluorescent lamp in an airtight state. Air (atmosphere) can be freely circulated between the inside and the outside of the cover.

The cover 44 is formed of a transparent glass or resin member by means of injection molding or the like.

As a first means for providing the main body 45 to which the light source is attached with the luminous substance, an adhesive (luminous paint) containing the luminous substance is applied to the surface.

Luminescent substances and adhesives containing the luminous substances,
The method of applying the adhesive and the like have been described in detail in the first embodiment, and are omitted.

Further, as a second means for providing the phosphorescent substance on the outer surface of the main body 45 to which the light source is attached, as shown in FIG. 7, powder particles of the phosphorescent substance are applied or embedded on the surface of the molded article in the process of injection molding. Method is used. The molding has also been described in detail in the first embodiment, and will be omitted.

The fluorescent lamp corresponding to the light source may have any shape such as a straight tube shape or an annular shape. The light source is not limited to a fluorescent lamp, but may be an incandescent lamp, a mercury lamp, a xenon lamp, a metal halide lamp, or the like.

As the member constituting the cover, glass,
Alternatively, it is made of any light transmitting member such as acrylic, polycarbonate, vinyl chloride, and urea resin. Coloring is also optional, such as milky or transparent or frosted.

(Third Embodiment) FIG. 3 is a sectional view of a lighting fixture 50 according to a third embodiment of the present invention.

The luminaire 50 shows the concept of a luminaire to be used by being attached to the ceiling of a general home or office building. Reference numeral 51 protects a light source, a reflecting mirror for covering or reflecting light, and 52 a reflection. Luminescent material provided on the surface (outer surface and inner surface) of the mirror 51, and 53 indicates a light source such as a light bulb, a fluorescent lamp (straight tube or annular), an incandescent light bulb, a mercury lamp, a xenon lamp, and a metal halide lamp.

The reflecting mirror 51 is formed by pressing a metal plate,
A transparent glass or resin member is formed by means such as injection molding.

As a first means for providing the surface (outer surface and inner surface) of the reflecting mirror 51 with the phosphorescent substance, an adhesive containing the phosphorescent substance is applied to the surface of the reflector mirror.

Luminescent material and adhesive containing the luminous material,
The method of applying the adhesive and the like have been described in detail in the first embodiment, and are omitted.

Further, as a second means for providing the phosphorescent substance on the inner surface side of the reflecting mirror 51, as shown in FIGS. 4, 5 and 6, powder particles of the phosphorescent substance are molded into a molded product ( (Reflecting mirror) is applied or embedded on the inner surface side. FIG. 4 is a sectional view of an essential part showing the concept of injection molding.
In FIG. 4, reference numeral 2C is a fixed type, 3C is a movable type, 7C is a movable part that is freely movable back and forth provided in at least a part of the cavity, 41C is a phosphorescent substance injection device, 110 is a mold,
Reference numeral 11 denotes a molded product such as a reflector.

The molding operation of FIG. 4 is performed by a mold 11 having a movable part 7C that can freely move back and forth in at least a part of the cavity.
0 is prepared, a molding material such as a resin member is supplied to the cavity, and then the movable portion 7C is retracted to provide a void (not shown), and a gas containing a phosphorescent substance is supplied to the void. By doing so, a coating layer made of a phosphorescent substance is formed on at least the inner surface of the recess of the molded product 111 (reflecting mirror).

As described in the first embodiment, it goes without saying that the gas containing the phosphorescent substance may also contain the adhesive. The types of the phosphorescent substance, the molded resin member, the adhesive, etc. may be the same as those in the first embodiment.

FIG. 5 and FIG. 6 show another injection molding method in which a light storing substance is arranged on the inner surface side of a reflecting mirror. FIG. 5 is a cross-sectional view of an essential part showing the concept of injection molding. FIG. 6 shows a movable type 123
A small amount (several microns to hundreds of microns)
It shows a state in which a space is provided between the movable mold 123 and the molded product 121 by retracting.

5 and 6, reference numeral 41D is a phosphorescent substance injection device, 121 is a molded product, 122 is a fixed mold, and 123 is a molded product.
Is a movable mold, 124 is a cylinder, and 150 is a mold.

The molding operation is performed by the movable mold 123 and the fixed mold 122.
A pair of molds 150 consisting of
Forming material 121 such as a reflecting mirror is formed by supplying a molding material to the cavity of the above, and then the movable die 123 is retracted to form a void portion (see FIG. 6). By supplying a gas containing the above, a coating layer made of a phosphorescent substance is formed on the surface of the molded article 121.

As described in the first embodiment, it goes without saying that the gas containing the phosphorescent substance may also contain the adhesive. The types of the phosphorescent substance, the molded resin member, the adhesive, etc. may be the same as those in the first embodiment.

The reflecting mirror may have any shape such as a convex shape or a spherical shape, instead of the concave shape. Of course, a reflecting mirror having a parabolic surface may be used. Further, the surface condition of the reflecting mirror may be a surface condition such as a mirror surface having a high light reflectance and a color tone such as white coating.

Needless to say, the molding material is not limited to the resin member and may be ceramics, glass or the like.

As described above, in the above-described lighting equipment of the present invention, even when the light source is replaced due to its life or damage, the light storing substance provided on the surface of the shade, the reflecting mirror, the main body or the like can be continuously used.

[0100]

As described above, the luminaire provided with the shade according to the present invention keeps the luminous substance provided on the surface of the shade or the reflector or the main body even when the light source is replaced due to its life or damage. Can be used.

Also, the brightness of the atmosphere can be maintained for a certain period of time after the power is turned off. Furthermore, the amount of the phosphorescent substance used is smaller than that when the phosphorescent substance is mixed into a molding material such as plastic or ceramics to be molded. Also,
Since the phosphorescent substance is arranged on the surface of the symmetrical object, the light absorption / emission efficiency is improved.

Further, without changing the molding characteristics of the resin member used for injection molding, an arbitrary structure or curved surface shape can be formed according to the variety of designs and the purpose of use, and the quality of the molded product does not deteriorate. Furthermore, the coating layer of the phosphorescent substance can be formed in the process of injection molding, and the work for disposing after the molding is unnecessary. Therefore, the process is simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a lighting fixture according to a first embodiment of the present invention.

FIG. 2 is an external perspective view of a lighting device according to a second embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view of a lighting fixture according to a third embodiment of the present invention.

FIG. 4 is a cross-sectional view of a main part of a molding device used for molding a reflecting mirror in Embodiment 3 of the present invention.

FIG. 5 is a cross-sectional view of a main part of a molding apparatus used for molding a reflecting mirror in a third embodiment of the present invention.

FIG. 6 is a sectional view of essential parts showing a molding process of a molding apparatus used for molding a reflecting mirror in a third embodiment of the present invention.

FIG. 7 is a cross-sectional view of essential parts of a molding device used for molding a glove or the like according to Embodiment 1 of the present invention.

FIG. 8 is a cross-sectional view of essential parts of a blow molding device used for molding a glove or the like according to Embodiment 1 of the present invention.

9 is an enlarged cross-sectional view of the mold in FIG.

[Explanation of symbols]

 2C, 122 Fixed type 3C, 123 Movable type 7C Movable part 22 Reflector 40, 50, 80 Lighting fixture 41, 52, 82 Luminescent substance 41C, 41D Luminescent substance injection device 42 Fluorescent lamp 43 Miniature bulb 44 Cover 45 Main body to which a light source is attached 51 Reflector 53, 83 Light Source 81 Sed 84 Holding Part 110, 150, 201 Mold 111, 121 Molded Product 124 Cylinder 201A Gap 202 Blow Pin 203 Pressurized Air Source 207 Luminescent Material 211 Parison 230 Pump 231 Supply Pipeline

Claims (16)

[Claims] 1. A luminaire, characterized in that the surface of the shade is provided with a light-storing substance. 2. A luminaire characterized in that a phosphorescent material is embedded in the surface of a shade. 3. A luminaire, characterized in that an adhesive containing a phosphorescent substance is applied to the surface of the shade. 4. The adhesive is any one of acrylic type, vinyl acetate type, fluororesin type, silicon resin type, epoxy resin type, urethane resin type, polyester resin type, phenol resin type, and polyvinyl chloride type. The luminaire according to claim 3, wherein 5. A luminaire comprising a reflecting mirror provided with a light-storing substance on the surface thereof. 6. A luminaire characterized in that a phosphorescent material is embedded in the surface of a reflecting mirror. 7. A luminaire, characterized in that an adhesive containing a phosphorescent substance is applied to the surface of the reflecting mirror. 8. A lighting fixture comprising a main body on which a light source is mounted, and a light-storing substance provided on a surface of the main body. 9. A luminaire, wherein a phosphorescent substance is embedded in a surface of a main body to which a light source is attached. 10. A luminaire characterized in that an adhesive containing a phosphorescent substance is applied to a surface of a main body to which a light source is attached. 11. A mold having a movable part that is freely movable back and forth in at least a part of a region of the cavity is prepared, a molding material is supplied to the cavity, and then the movable part is retracted to provide a void portion, Molding of a molded article having a phosphorescent substance, characterized in that a coating layer made of the phosphorescent substance is formed in at least a partial region of the molded product by supplying a gas containing a phosphorescent substance to the void portion. Method. 12. The method for molding a molded article provided with a phosphorescent substance according to claim 11, wherein the gas contains an adhesive. 13. A pair of molds including a movable mold and a fixed mold is prepared, and a molding material is supplied to a cavity of the mold,
Then, the movable mold is retracted to provide a void portion, and a gas containing the light-accumulating substance is supplied to the void portion to dispose the light-accumulating substance on the surface of the molded article. A method of molding a provided molded article. 14. A pair of molds including a movable mold and a fixed mold is prepared, and a molding material is supplied to a cavity of the mold,
After that, the movable die is retracted to form a void portion, a phosphorescent substance is supplied to the void portion, and further, by advancing the movable die, the phosphorescent substance is pressed to near the surface of the molded product. A method for molding a molded article having a phosphorescent substance, which is characterized by being embedded. 15. A blow molding method in which an extrusion-molded parison is sandwiched between molds and a pressurized gas is blown into the parison, in the process of sandwiching the parison between the molds and a parison outer peripheral surface. A blow molding method for a molded article provided with a phosphorescent substance, wherein the phosphorescent substance is arranged on the outer peripheral surface of the parison by introducing a pressure gas containing the phosphorescent substance. 16. A blow molding method in which an extruded parison is sandwiched by a mold and a pressurized gas is blown into the parison, wherein a pressure containing a phosphorescent substance is contained in the parison during the process of sandwiching the parison by the mold. A blow molding method for a molded article comprising a phosphorescent substance, characterized in that a phosphorescent substance is arranged on the inner peripheral surface of the parison by introducing gas.