JP2000067605A - Ceiling lighting system for bathroom or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with time and labor of the troublesome replacing work of a lamp or the like by optically connecting a linear luminescent part mounted on a ceiling part of a bathroom or the like to a light source mounted outside of the bathroom by an light transmitting tube, and illuminating the neighborhood of a step of the bathroom by the light of the linear luminescent part. SOLUTION: A ceiling lighting system comprises a linear luminescent part 3 mounted in a lamp house LH of a ceiling part 1 of a bathroom or the like, a light source 4 mounted on the proper place outside of the bathroom, and a light transmitting part 5 for transmitting the light between the light source 4 and the linear luminescent part 3. Almost half of the ceiling part 1 is formed into the dome-shape, a transparent member is mounted on a side part to form the lamp house LH, and the light emitted from the linear luminescent part 3 is reflected by a ceiling inclination part through the transparent member, so that the indirect illumination light is given to a person just under a washing place. The light source 4 is mounted on at least one end part in the longitudinal direction of the light transmitting part 5, a luminescent diode is used therein, the luminescent color is properly selected corresponding to the purpose, and a light transmitting tube is used in the light transmitting part 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling lighting device for a bathroom or the like which is provided on a ceiling of a bathroom and can perform, for example, indirect lighting.

[0002]

2. Description of the Related Art A ceiling device in a bathroom is formed in a dome shape, a lighting device is provided on the ceiling portion, and a transparent device or a translucent cover is attached to the outside of the lighting device. Japanese Patent Application Laid-Open No. 52616/1993 and Japanese Utility Model Application Laid-Open No. 5-85948 are known.

By the way, in these references, a lighting device composed of a lamp covered with a transparent cover made of an acrylic plate, a synthetic resin, glass or the like is provided on a ceiling of a bathroom formed in an arch shape. Has been disclosed,
This provides indirect lighting in the bathroom.

[0004]

However, in such a configuration, although the lighting condition by the cover is devised, it is covered by a complicated structure, so that the cost increases accordingly. In addition, since these are mounted on the ceiling, it is troublesome to remove and install the cover when replacing the lamp, etc., especially in a small and poorly scaffolded bathroom. Because of the attachment and detachment, the work requires a lot of work.

In view of the above circumstances, the present invention requires no troublesome work of replacing lamps and the like.
It is another object of the present invention to provide a ceiling lighting device for a bathroom or the like that can realize various lighting conditions without requiring a cover having a particularly complicated shape.

[0006]

That is, according to the present invention, a linear light emitting portion is provided on a ceiling portion of a bathroom, a dressing room, a toilet, or the like, and the linear light emitting portion and a light source provided outside the bathroom are provided. Are optically connected to each other by an optical transmission tube, and the vicinity of the step is illuminated by light from the linear light emitting portion.

According to a second aspect of the present invention, in the first aspect of the present invention, the central portion of the ceiling portion is formed of a dome ceiling which bulges upward and curves upward.

According to a third aspect of the present invention, in the first aspect of the present invention, a transparent cover or a semi-transparent cover is attached so that light from the linear light emitting portion does not directly enter the eyes of a bather. It is configured to provide indirect lighting.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a ceiling lighting device for a bathroom or the like according to the present invention. The ceiling lighting device includes a linear light emitting portion 3 installed in a lamp house of a ceiling portion 1 and an appropriate portion outside the bathroom. And a light transmitting unit 5 for transmitting light between the light source 4 and the linear light emitting unit 3.
It is composed of

The ceiling 1 of this embodiment is formed in a dome shape (half dome) substantially in half, and as shown in FIG. 2, a lamp house LH having a transparent member 2 attached to a side surface portion is formed. The light emitted from the linear light-emitting body 3 passes through the transparent member and is then reflected on the slope portion of the ceiling to provide indirect illumination light to a bather in the washing room immediately below. In this embodiment, the lamp is illuminated from the side. However, the bottom portion of the lamp house immediately below the linear illuminant may be formed of a transparent member or a translucent member.

The linear light emitting section 3 of this embodiment is, for example, shown in FIG.
As shown in FIG. 2, the lamp house LH is attached over the entire length or almost the entire length of the lamp house LH, and is supported by an appropriate attachment member 30 shown in FIG.

As shown in FIG. 3, the linear light emitting section 3 of this embodiment comprises a transparent annular cladding 31, a transparent core 32 having a higher refractive index than the cladding 31,
A light transmission tube composed of a light reflection layer 33 provided between the core 32 and the inner surface on the other side is used.
Further, the light reflecting layer 33 is further covered with the clad 31.
A reflective protective layer 34 is formed on the outer surface of the other side,
Further, the reflection efficiency is increased. The linear light emitting section 3
The core diameter of the light source 4 is not particularly limited.
When two LEDs are used, the length is about 2 to 30 mm, particularly 4 to 15 mm, and the length is preferably about 0.1 to 5 m, particularly preferably 0.2 to 2 m. In addition, the light reflection layer may be formed in a strip shape in the length direction of the clad in a state where the light reflection layer slightly enters the inside from the core surface.

Here, as a material (cladding material) forming the tubular cladding 31, a material having flexibility, such as plastic or elastomer, which can be formed into a tube shape and has a low refractive index is used. Is preferred. Specific examples thereof include polyethylene, polypropylene, polyamide, polystyrene, ABS resin, polymethyl methacrylate, polycarbonate, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polyethylene-vinyl acetate copolymer, polyvinyl alcohol, and polyethylene-polyvinyl alcohol. Polymer, fluororesin, silicone resin, natural rubber, polyisoprene rubber, polybutadiene rubber, styrene-butadiene copolymer, butyl rubber, halogenated butyl rubber, chloroprene rubber, acrylic rubber,
EPDM, acrylonitrile-butadiene copolymer, fluororubber, silicone rubber and the like can be mentioned.

Of these, silicone polymers and fluorine polymers having a low refractive index are particularly preferred. Specifically, silicone polymers such as polydimethylsiloxane polymer, polymethylphenylsiloxane polymer and fluorosilicone polymer, and polytetrafluoroethylene (P
TFE), ethylene tetrafluoride-propylene hexafluoride copolymer (FEP), ethylene tetrafluoride-perfluoroalkoxyethylene copolymer (PFE), polychlorotrifluoroethylene (PCTFE), ethylene tetrafluoride-ethylene Copolymer (ETFE), polyvinylidene fluoride, polyvinyl fluoride, vinylidene fluoride-ethylene trifluoride ethylene chloride copolymer, vinylidene fluoride-propylene hexafluoride copolymer, vinylidene fluoride-propylene hexafluoride- Examples thereof include a tetrafluoroethylene terpolymer, a tetrafluoroethylene propylene rubber, and a fluorine-based thermoplastic elastomer, and a fluorine-based polymer is particularly preferable. These materials can be used alone or in combination of two or more.

On the other hand, as a material (core material) for forming the transparent core 32, a solid material is preferable. (Meth) acrylic polymer, polycarbonate, polystyrene, silicone rubber, ethylidene norbornene polymer, SB
Examples thereof include S, SIS, and SEBS (styrene-ethylene-butadiene-styrene block polymer). Among them, (meth) acrylic polymers are preferable.

As the (meth) acrylic polymer, a homopolymer obtained by polymerizing one kind of monomer selected from acrylic acid and methacrylic acid and an ester thereof with a monohydric alcohol, or a copolymer of two or more kinds of monomers is used. And a copolymer comprising In this case, examples of the monohydric alcohol include those having 1 to 22 carbon atoms. Among them, acrylic acid and methacrylic acid, and these and lower alcohols (1 to 5 carbon atoms, preferably 1 to 5 carbon atoms)
3, and most preferably, a copolymer of a monomer selected from an ester with 1) and a monomer represented by the following general formula (1) is excellent in flexibility or flexibility and excellent in light transmittance. Is also preferable because it is excellent.

[0017]

Embedded image

In the formula, R ¹ is a hydrogen atom or a methyl group, R ² is an alkyl group having 8 to 20, preferably 10 to 16, more preferably 12 to 14 carbon atoms. Although it may be a group or a mixed alkyl group, it is most preferably a mixed alkyl group having 12 or 13 carbon atoms. In this case, the ratio between the alkyl group having 12 carbon atoms and the alkyl group having 13 carbon atoms is usually 20:80 to 80:20, particularly 40: 6 as a weight ratio.
The ratio is preferably 0 to 60:40. The copolymerization ratio of the monomer selected from the above-mentioned acrylic acid, methacrylic acid and lower alcohol esters thereof with the monomer of the above-mentioned chemical formula is appropriately selected.
It is preferably 79:21, particularly preferably 30:70 to 65:35.

The diameter of the core 32 is not particularly limited, but is usually 2 to 30 mm, particularly 5 to 15 mm.

The light reflecting layer 33 is preferably formed of scattering particles that scatter light. In this case, as the scattering particles, for example, organic polymer particles such as silicone resin particles and polystyrene resin particles, Al ₂ O ₃ , TiO ₂ ,
Examples thereof include metal oxide particles such as SiO ₂ , sulfate particles such as BaSO ₄ , and carbonate particles such as CaCO ₃ , and one of these can be used alone or in combination of two or more.

The average particle size of the particles is 0.1 to 30 μm.
m, particularly preferably 1 to 15 μm, and when it is larger than 30 μm, according to the method for manufacturing an optical transmission tube described below, the core liquid is likely to precipitate during injection into the cladding tube,
There may be disadvantages.

The thickness of the light reflecting layer 33 is not particularly limited, but is preferably from 10 to 200 μm, particularly preferably from 50 to 100 μm. If it is too thin, less light will be reflected, resulting in lower brightness.If it is too thick, more light will be reflected, resulting in higher brightness. May have a disadvantage of lowering the brightness.

The reflective protective layer 34 may be any material that does not transmit the light to the outside when the light leaks from the light reflecting layer 33. In this case, the reflective protective layer 34 does not absorb the leaked light and reflects the light. Is preferable, specifically, silver,
A metal foil such as aluminum, a metal sheet, a reflective tape, a vapor deposition tape, or a coating film in which the above-described scattering particles that scatter light are dispersed can be used.

In this case, the reflective protective layer 34 is formed as shown in FIG.
As shown in FIG. 5, the outer surface of the clad 31 may be merely covered with the light reflecting layer 33, or may be extended to one side to be larger than the light reflecting layer 33 so as to leave the light emitting portion 35, as shown in FIG. May be formed.

In the light transmission tube, the scattering particles are dispersed in a core forming solution containing the monomer, and the dispersed particles are put into a clad tube where a clad 31 is to be formed.
The clad tube is sealed for approximately 30 minutes with both ends sealed.
The particles dispersed in the solution for forming the core 32 are settled for 48 hours. In some cases, centrifugation or the like may be performed. Thereafter, the monomer was polymerized and cured while the particles were settled, so that the light reflecting layer 33 composed of the particles slightly penetrated into the core between the clad 31 and the core 32 and in some cases from the core surface. An optical transmission tube formed in a state is obtained.

In this case, the polymerization method of the monomer is not particularly limited, but generally, t-butyl hydroperoxide, di-t-butyl peroxide, lauroyl peroxide, benzoyl peroxide, dimyristyl peroxydicarbonate, Organic peroxides such as t-butylperoxyacetate, t-butylperoxy (2-ethylhexanoate) and cumylperoxyoctoate; azo compounds such as azobisisobutyronitrile and azobiscyclohexanenitrile; A method of adding a polymerization initiator and polymerizing at 50 to 120 ° C. for 1 to 20 hours can be employed. At this time, it is recommended to polymerize the core-forming solution from one end or both ends of the clad tube while pressurizing the core-forming solution because bubbles and the like are not generated in the core.

The light source 4 of this embodiment is installed at an appropriate place outside the bathroom (for example, at a dressing room, behind the ceiling of a dressing room, under a wash basin, or other places). Is disposed at least at one end in the length direction (only the left end in this embodiment), and an LED (light emitting diode) is used. The light emission color of this light emitting diode is red,
Blue, green, yellow, orange, white and the like can be appropriately selected and used according to the purpose. The number of LEDs may be one, or a plurality of LEDs may be provided to increase the amount of light. In this case, the light may be incident from one end or from both ends. If the light is incident from both ends, light can be more uniformly emitted with high luminance. The same applies to the emission color of the LED, and it may be a single color or a plurality of colors. Also, this LE
As the light emission method of D, for example, washing the body in the washing place,
It may be always on when washing hair, shaving, etc., but blinks slowly during bathing in the bathtub (color may change)
You may make it feel relaxed and relaxed.

The light transmission section 5 has basically the same configuration as the light transmission tube, and the base end is fixed to an appropriate connector by bonding or caulking. The light source 4 using an LED is also fixed integrally with the light transmission unit 5 via a connector.

That is, the light transmitting section 5 is configured to transmit the light emitted from the light source 4 to the linear light emitting section 3, that is, not to emit the light from the light source 4 to the outside. In the embodiment, it is disposed inside the wall surface. The light transmitting section 5 has a structure in which a light reflecting layer or a reflective protective layer for emitting light is provided on the entire circumference in the linear light emitting section 3 composed of, for example, a light transmitting tube. For the purpose of protecting the tube, it can be inserted into a transparent resin pipe or the like, or can be covered with a transparent heat-shrinkable tube for protecting the light transmission tube and sealing the entire linear light emitting portion.

Further, a metal material such as, for example, stainless steel, gold, or silver is deposited on the entire outer peripheral surface of the optical transmission unit 5.
Sputtering, plating reflective tape, applying reflective paint, providing metal foil, coating reflective particles such as titanium oxide, providing a light reflective layer using a pigmented vinyl tape Is also good.
In addition, a fixing channel may be attached to the light transmission tube, and the channel may have a reflection function (function as a reflective protective layer). This channel includes
Made of metal materials such as aluminum and stainless steel,
Plastics or elastomers filled and kneaded with highly reflective fine particles (powder) may be used.

Therefore, according to this embodiment, in the bathroom, the linear light-emitting portion 3 is provided as an auxiliary lighting device that illuminates the entire length or almost the entire length of the side surface of the lamp house LH of the ceiling portion 1. The emitted light from the side of the lamp house LH is reflected on the curved half-dome-shaped ceiling portion, and can be projected on a washing place or a bathtub below, so that soft indirect illumination can be realized.

Next, another embodiment according to the present invention will be described. FIG. 6 shows a ceiling lighting device according to a second embodiment of the present invention. This ceiling lighting device has three out of four peripheral portions of a dome-shaped ceiling 1 ′ (full dome).
A linear light-emitting portion 3 provided on a side portion (all four sides may be provided, or two sides or only one side may be provided) and an appropriate portion outside the bathroom, for example, a dressing room (in addition to the above, for example, the ceiling behind a dressing room) And a light sink 4), and a light transmission unit 5 disposed in a wall surface for optically connecting the light source 4 and the linear light emitting unit 3 to each other. ing. In addition,
The configurations of the linear light emitting section 3, the light source 4, and the optical transmission section 5 are the same as those in the previous embodiment.

As shown in FIG. 7, the linear light emitting section 3 of this embodiment is fixed and supported by a bracket BR provided on a ceiling portion, and a shade 6 is attached immediately below the linear light emitting body 3 to take a bath. The light does not enter the eyes of the person.

Therefore, in this embodiment, since the linear light-emitting portion 3 is provided around the dome ceiling via the shade 6, for example, when the user enters a bathtub and looks at the ceiling, the ceiling becomes curved in a dome shape. Is illuminated with illumination light, and especially the border between the wall and the ceiling is not visually perceived. Even if the ceiling is low, the ceiling is not felt low, giving a sense of quality as a bathroom. .

[0035]

As described above, according to the present invention, a linear light-emitting portion is provided on a ceiling of a bathroom, a dressing room, a toilet, or the like, and the linear light-emitting portion and a light source provided outside the bathroom are provided. Since the space between them is optically connected by an optical transmission tube and the vicinity of the step is illuminated by light from the linear light emitting section, no troublesome work of replacing lamps or the like is required.

Further, according to the present invention, since the electric wiring cord is not drawn into the bathroom, there is no danger of electric leakage or electric shock even if dew is formed on the ceiling part where steam or humidity is high due to condensation or the like. In particular, it is not necessary to cover the lamp with a cover having a complicated shape in consideration of waterproofness, so that various lighting conditions matching the ceiling of the bathroom, such as indirect lighting, can be realized.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a bathroom ceiling lighting device of the present invention.

FIG. 2 is a cross-sectional view showing an installation state of a linear light emitting unit.

FIG. 3 is a side sectional view showing a configuration of a linear light emitting unit.

FIG. 4 is a longitudinal sectional view showing another configuration of the linear light emitting section.

FIG. 5 is a longitudinal sectional view showing still another configuration of the linear light emitting section.

FIG. 6 is a schematic diagram showing another bathroom ceiling lighting device according to the present invention.

FIG. 7 is a sectional view showing an installation state of a linear light emitting unit.

[Explanation of symbols]

 1, 1 'ceiling part 2 transparent member 3 linear light emitting part 4 light source 5 light transmission part 6 shade BR bracket LH lamp house

Claims (3)

[Claims] A linear light emitting section is provided on a ceiling of a bathroom, a dressing room, a toilet, or the like, and an optical transmission tube is used to optically connect the linear light emitting section to a light source provided outside the bathroom. A step lighting device for a bathroom, wherein the step lighting device is configured to illuminate the vicinity of the step with light from the linear light emitting section. 2. The dome ceiling, wherein a central portion of the ceiling portion bulges upward and curves upward.
A ceiling lighting device for a bathroom or the like described in 1. 3. The indirect illumination is provided by attaching a transparent cover or a translucent cover so that light from the linear light emitting section does not directly enter the eyes of a bather. A ceiling lighting device for a bathroom or the like described in 1.