JPH0574220A - Study desk, partition and unit sink having surface emissive illumination - Google Patents

Abstract

PURPOSE:To illuminate a desired surface such as a desk top surface or a working surface top uniformly with directivity without giving a sense of glare by arranging a surface emissive illumination unit along the reverse of a shelf plate of a book shelf arranged in a study desk body. CONSTITUTION:A surface emissive illumination unit 5A is composed of a highly bright small tube fluorescent lamp 5a, a light conductive plate 5b and a reflecting plate 5c, and this unit 5A is arranged in an optical position along the reverse U of a shelf plate 4. When the lamp 5a is lit up, the whole light of the lamp 5a is projected convergently on the light incident edge surface (a) of the plate 5b by means of the plate 5c. This light is transmitted inside of respective light conductive plates P while repeating total reflection toward the light outgoing edge surface (b), and is projected uniformly on the plate 5c from the side edges of the respective plates P. Next, the light is reflected uniformly in the prescribed direction from the surface S1-S5 of the plate 5c with directivity in a surface emissive condition, and since the light illuminates a desired desk top surface of a desk body uniformly and effective by means of light distribution with sharp directivity, the direct light never enter eyes, so that fatigue caused by glare is hardly felt.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a surface emitting lighting learning desk and a surface emitting lighting equipped with a surface emitting lighting unit which illuminates a desk or a sink surface evenly and very efficiently, and which is thin and has a small mounting space. The present invention relates to a partition and a unit sink with surface emitting illumination.

[0002]

2. Description of the Related Art An example of a conventional learning desk with a lighting unit is shown in FIG. In FIG. 7, 1 is a learning desk with a lighting unit,
2 is a learning desk body (hereinafter referred to as a desk body), 3 is a bookshelf, 4
Is a shelf plate of the bookshelf 3, 5 is a lighting unit using a straight tube fluorescent lamp attached to the front edge of the shelf plate 5, 5a is a fluorescent lamp, and S is a desk top surface.

When the lighting unit 5 is turned on based on the above configuration, the desk surface S of the desk body 2 is illuminated by the direct light from the fluorescent lamp 5a and the reflected light from the reflecting plate (not shown).

As an example of a conventional partition with a lighting unit, FIG. 8 shows a PU panel described in (2) 92 KOKUYO Catalog Furniture Edition. In FIG.
6 is a partition with surface emitting illumination, 7 is a partition body, 5 is a lighting unit using a straight tube type fluorescent lamp attached to the partition body 7, a fluorescent lamp 5a, and a reflection plate for reflecting light from the fluorescent lamp 5a. And 5c. 8
Is a fixture for attaching the lighting unit 5 to the partition body 7, 9 is a work base plate which is removably attached to the partition body 7 below the lighting unit 5 at a predetermined interval, and S is a work surface. is there.

When the lighting unit 5 according to FIG. 8 is turned on,
The work surface S of the work table 8 is illuminated by the direct light from the fluorescent lamp 5a and the reflected light from the reflector 5c.

FIG. 9 shows an example of a conventional unit sink. In FIG. 9, 10 is a unit sink, 11
The main body is a sink, 12 is a storage rack, 5a is a fluorescent lamp, and U is the bottom of the storage rack.

In the above structure, when the fluorescent lamp 5a is turned on, the upper surface of the sink body 11 is illuminated by the fluorescent lamp 5a arranged on the bottom surface U of the storage shelf diagonally above the user.

On the other hand, as a surface emitting illumination, Japanese Patent Laid-Open No. 61-24
A light diffuser is disclosed in Japanese Patent No. 6702.

[0009]

However, since the conventional learning desk and the partition with the lighting unit are configured as shown in FIGS. 7 and 8, the lighting unit 5 is exposed at the front edge of the shelf plate 4 of the bookcase 3. Not only obstructs, but also disperses the light to reduce the illuminance of the desk top surface or work surface S, and also causes the illumination to be uneven depending on the position. There is a problem that the direct light of 5a is likely to enter and fatigue is likely to occur due to glare.

Further, since the conventional unit sink is constructed as shown in FIG. 9, the fluorescent lamp 5a is arranged so as to be directly attached to and exposed on the bottom surface U of the storage shelf diagonally above the user. Since the light from the 5a is dispersed, the light distribution becomes uneven depending on the position on the sink, and the illuminance is reduced due to the dispersion of the light, and the direct light from the fluorescent lamp 5a is easily caught by the user. However, there is a problem that the user is easily tired due to glare.

Further, the light diffuser disclosed in the above publication is
The present invention relates to a simple light-diffusing general illumination unit characterized by combining two or more light guides to evenly diffuse light, and is a single light guide like the surface emitting illumination unit of the present invention. It is not possible to expect a configuration or effect in which the light distribution is performed by using the to provide directivity evenly in a specific direction.

The present invention has been made in order to solve the above-mentioned problems of the conventional example, and does not make the presence of the illumination unit feel, and directs a desired surface on the desk, the work surface and the sink. It is an object of the present invention to provide a learning desk with surface emitting illumination, a partition with surface emitting illumination, and a unit sink with surface emitting illumination that uniformly and evenly illuminate without causing glare.

[0013]

Therefore, in the learning machine with surface emitting illumination according to the present invention, a plurality of light guide plates having different lengths are laminated so that the light incident end faces of the respective light guide plates are flush with each other. A linear light source is attached to the light incident end face of the light guide body in which the emission end faces are stacked in a stepwise manner, and a reflection plate is attached to the light emission end face to form a surface emitting illumination unit. The back side of the reflection plate of the unit is attached along the back side of the shelf plate of the bookshelf provided in the learning desk body, and the linear light source is arranged on the depth side of the shelf plate to fix the surface emitting lighting unit, With this surface emitting lighting unit, the light is concentrated on a desired surface of the desk top of the learning desk body.

In the partition with surface emitting lighting according to the present invention, the rear side of the reflecting plate of the surface emitting lighting unit used in the learning desk with surface emitting lighting is installed on the back surface of the shelf provided in the partition, and A linear light source is arranged on the depth side of the shelf plate to install a surface emitting lighting unit, and the surface emitting lighting unit is used to concentrate light on a desired surface of a work table installed on the partition as needed. It is a thing.

Further, the unit sink with surface emitting illumination according to the present invention is the corner portion between the bottom surface and the wall surface of the storage shelf of the unit sink for the linear light source of the surface emitting illumination unit used in the learning desk with surface emitting illumination. And the rear surface of the reflection plate is attached to one of the bottom surface and the wall surface of the storage shelf so that the light of the surface emitting lighting unit is concentrated and distributed to a desired surface of the main body of the sink. is there.

[0016]

According to the first aspect of the present invention, there is provided a surface emitting lighting unit for a learning desk with surface emitting lighting according to the invention, which is attached to the shelf board at a desired position on the back surface of the shelf board of the bookshelf mounted on the learning desk body. The light from the linear light source is guided by the light guide, reflected by the reflector, and uniformly illuminated with directivity toward the desired desk surface, and the light is directional and bright light. Not only does it efficiently illuminate, but the direct light from the linear light source does not enter the eyes at all, and fatigue of the user due to glare is prevented.

The surface emitting lighting unit of the partition with surface emitting lighting according to the second aspect of the present invention is disposed so as to be in contact with a desired position on the back surface of the shelf plate provided in the partition, and the light from the linear light source is provided. Is guided by a laminated light guide, reflected by a reflection plate, and uniformly illuminated with directivity toward a desired work surface, and the light is directed and bright and very efficient. Moreover, the direct light from the linear light source does not enter the eyes at all, and the user's fatigue due to glare is prevented.

According to the third aspect of the present invention, the surface emitting lighting unit of the unit sink with surface emitting lighting according to the present invention is arranged at the corner between the bottom surface of the storage shelf and the wall surface, and has a linear light source, a laminated light guide and a reflector. Then, evenly illuminate with a directivity in the desired light distribution direction, and obtain a sharp surface illumination with little light attenuation,
Not only does the operation of the user be easy and reliable, but since direct light does not enter the visual field at all, fatigue due to glare is prevented.

[0019]

【Example】

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings. (Structure) FIG. 1 is a perspective configuration view showing an embodiment of a learning desk with surface emitting illumination, and FIG. 2 is a side sectional view of a main part of an embodiment of the learning desk with surface emitting illumination. The same or corresponding parts as those of the conventional example are designated by the same reference numerals.

In FIGS. 1 and 2, 1A is a learning machine with surface emitting illumination, and 5a is a high-intensity thin tube having a diameter significantly smaller than that of a conventional fluorescent lamp which is an example of a linear light source L, for example, a diameter of 1/2. Fluorescent lamp (hereinafter referred to as fluorescent lamp) 5b is formed by stacking five light guide plates P having different lengths, which are made of a material having excellent translucency such as methyl methacrylate polymer, in accordance with the diameter of the fluorescent lamp 5a. A light guide body (hereinafter referred to as a light guide body) 5c in which the light entrance end surfaces of the five light guide plates P are aligned flush with each other and the light exit end surfaces are stacked stepwise is added to the light exit end surface of the light guide body 5b. The reflector is a reflector formed so as to be in contact with and surround the periphery of the fluorescent lamp 5a. The fluorescent lamp 5a, the light guide plate 5b, and the reflector 5c.
And surface emitting lighting unit (hereinafter referred to as lighting unit)
5A is configured, and the lighting unit 5A can be formed to have a very thin thickness of 20 mm to 30 mm because the fluorescent lamp 5a has a diameter as small as 1/2 of that of the conventional fluorescent lamp. It is possible.

Reference numeral a denotes a light incident end surface of the light guide body 5b, and b denotes a light emitting end surface (hereinafter referred to as a light exit end surface) of the light guide body 5b stacked in a stepwise manner, which is S1, S2, S3, S4. S
Reference numeral 5 denotes a reflecting surface of the reflecting plate 5c that uniformly reflects the light projected from the side end of each light guide plate P in a predetermined direction. In the lighting unit 5A, the fluorescent lamp 5a is provided at an arbitrary position on the back surface U of the shelf board 4 in FIG.
The end surface of c is attached to the shelf plate 4 and arranged at a desired position.

(Operation) An operation will be described based on the above configuration. In FIG. 2, when the fluorescent lamp 5a is turned on, all of the light of the fluorescent lamp 5a is concentrated and projected onto the light incident end face a of the light guide 5b by the reflector 5c. By the same principle as the optical fiber, this light is transmitted through each light guide plate P while repeating total reflection toward the light emitting end face b, and is evenly distributed from the respective light guide plate P side ends of the light emitting end face b to the reflecting plate 5c. Is projected.
This light is reflected from the reflecting surfaces S1 to S5 of the reflecting plate 5c evenly in a predetermined direction in a surface emitting state with directivity,
A desired desk top surface S of the desk body 2 is evenly and effectively illuminated by a sharp directional light distribution. This not only allows the user to learn with bright, even lighting, but also
Since the direct light of the fluorescent lamp 5a does not enter the eyes at all, fatigue due to glare is not felt.

Further, since the illumination unit 5A can be formed to be extremely thin and is attached to the back surface U of the shelf board 4 in FIG. 2, the user does not enter the field of view and learns in a calm, lampless atmosphere. be able to.

Further, since the surface emitting lighting unit is not exposed on the front surface of the shelf board and the fluorescent lamp does not come into direct contact with the eyes, it has a very neat appearance without a lamp.

Furthermore, the lighting unit 5 is provided on the rear surface U of the shelf board 4.
If A is embedded and arranged, the shelf board 4 and the lighting unit 5A
Is more integrated, and the overall appearance is thinner and the aesthetic appearance is maintained.

Further, by making the illumination unit 5A movable so as to be in contact with the shelf plate 4, the irradiation position can be freely adjusted to the user's line of sight, and the task illumination in a good condition can always be obtained.

The light emitting end face b of the light guide 5b of the illumination unit 5A is not limited to a stepped shape, and the end faces of the light guide plate P are inclined so that the light emitting end face b becomes a continuous inclined surface. It may be formed.

Embodiment 2 (Structure) FIG. 3 is a perspective structural view showing an embodiment of a partition with surface emitting illumination, and FIG. 4 is a sectional side view of the essential part of the embodiment of the partition with surface emitting illumination. The same or corresponding parts as those of the conventional example are designated by the same reference numerals.

In FIGS. 3 and 4, 6A is a partition with surface emitting illumination, 4 is a shelf plate that is removably installed in the partition body 7, and 9 is also removable from the partition body 7 below the shelf plate 4. Workbench plates 5A installed at predetermined intervals are surface-emission lighting units configured in exactly the same manner as the lighting unit of the first embodiment. Compared with a conventional fluorescent lamp, which is an example of the linear light source L. , A high-intensity thin-tube fluorescent lamp (hereinafter referred to as fluorescent lamp) 5a having a diameter of, for example, 1/2, and a light guide plate P formed of a material having excellent translucency such as methyl methacrylate polymer and having different lengths. Five light guide plates P are stacked according to the diameter of 5a.
A light guide body (hereinafter referred to as a light guide body) 5b in which the light incident end surfaces of the above are aligned and the light exit end surfaces are stacked stepwise, and a light guide body 5b.
And a reflecting plate 5c which is formed so as to surround the fluorescent lamp 5a while being attached to the light emitting end face of the fluorescent lamp 5a. The lighting unit 5A has a thickness of 20 mm because the fluorescent lamp 5a has a diameter as small as 1/2 of that of the conventional fluorescent lamp.
It is possible to form a very thin shape of 30 mm,
The fluorescent lamp 5a is attached to the front edge of the back side of the shelf board 4 and the fluorescent board 5a is attached to the shelf board 4.
Is buried in the shelf plate 4 with the surface of the light guide plate P on the depth side of, and the side opposite to the reflection plate 5c, open.

(Operation) An operation will be described based on the above configuration. In FIG. 4, when the fluorescent lamp 5a is turned on, all the light from the fluorescent lamp 5a is concentrated and projected onto the light incident end surface a of the light guide 5b by the reflector 5c. By the same principle as the optical fiber, this light is transmitted through each light guide plate P toward the light emitting end face b while repeating total reflection, and is evenly distributed from the respective light guide plate P side ends of the light emitting end face b to the reflecting plate 5c. Is projected.
This light is reflected from the reflecting surfaces S1 to S5 of the reflecting plate 5c evenly in a predetermined direction in a surface emitting state with directivity,
A desired desk top surface S of the workbench 2 is uniformly and effectively illuminated with a light distribution having a sharp directivity. This allows the user not only to learn and work with bright and even illumination, but also because the direct light of the fluorescent lamp 5a is completely invisible.
No glare fatigue.

Further, the illumination unit 5A can be formed to be very thin, and in the second embodiment shown in FIG. 4, it is attached to the back surface U of the shelf board 4 so that it does not enter the field of view and has a lampless calm atmosphere. You can learn.

Further, in the second embodiment, since the lighting unit 5A is embedded in the back surface U of the shelf board 4, the shelf board 4 and the lighting unit 5A are more integrated, and the overall thickness is reduced and the appearance is maintained. However, instead of being buried, it may be attached to the shelf plate 4 and arranged at a desired position as in the first embodiment.

Further, by making the illumination unit 5A movable so as to be in contact with the shelf plate 4, the irradiation position can be freely adjusted to the user's line of sight, and the task illumination in a good condition can always be obtained.

In the second embodiment described above, the workbench is the workbench plate which is detachably installed on the partition body 7, but this is carried on the partition body 7 by carrying a separate table or desk. You may put it in contact.

Third Embodiment A third embodiment in which the present invention is applied to a sink will be described below with reference to the drawings. (Structure) FIG. 5 is a perspective view showing a structure of a unit sink with surface emitting illumination showing an embodiment of the present invention, and FIG. 6 is an explanatory view of a main part structure of the sink with surface emitting illumination of the above embodiment. In addition,
The same or corresponding parts as in the conventional example are represented by the same reference numerals.

In FIGS. 5 and 6, 10A is a unit sink with a surface emitting illumination, and 5A is a surface emitting illumination unit (hereinafter referred to as an illumination unit) which has the same structure as the illumination unit of the first embodiment. As compared with a conventional fluorescent lamp which is an example of L, a high-intensity thin-tube fluorescent lamp (hereinafter referred to as fluorescent lamp) 5a having a remarkably small diameter, for example, a diameter of 1/2, and a light-transmitting material such as a methylmethacrylate polymer. Five light guide plates P having different lengths and formed of an excellent material are laminated according to the diameter of the fluorescent lamp 5a, one end surface of each light guide plate P is flush with the other end surface, and the other end surface is inclined stepwise. The laminated light guide body 5b (hereinafter, referred to as light guide body) 5b and the reflection plate 5c formed so as to surround the periphery of the fluorescent lamp 5a other than the light guide body 5b. a is an end face that is flush with the light guide 5b (hereinafter referred to as a light incident end face), and b is the other end face of the light guide 5b that is also inclined stepwise (hereinafter referred to as a light exit end face). a is a linear light source 5a
However, a reflector 5c is attached to the light emitting end face b along the light emitting end face b.

Since the fluorescent lamp 5a of the lighting unit 5A has a diameter as small as 1/2 of that of the conventional fluorescent lamp, the thickness of the lighting unit 5A is 20 mm to 30 mm and is very thin. The fluorescent lamp 5a is placed in contact with the corner C of the wall surface W, and the rear surface of the reflector 5c is attached to the storage shelf bottom surface U. S1, S2, S3, S4, S5 are reflecting surfaces of the reflecting plate 5c that uniformly reflects the light projected from the side ends of the stacked light guide plates P in a predetermined direction.

(Operation) The operation will be described based on the above configuration. In FIG. 6, when the fluorescent lamp 5a is turned on, all the light of the fluorescent lamp 5a is concentrated and projected onto the light incident end surface a of the light guide 5b by the reflector 5c. By the same principle as the optical fiber, this light is transmitted through each light guide plate P while repeating total reflection toward the light emitting end face b, and is evenly distributed from the respective light guide plate P side ends of the light emitting end face b to the reflecting plate 5c. Is emitted. This light is reflected from the reflecting surfaces S1 to S5 of the reflecting plate 5c evenly in a surface emitting state having directivity in a predetermined direction, and a desired surface on the sink main body 2 is sharply distributed with little attenuation. Illuminate evenly. As a result, the user can clearly see the objects on the table, the operation can be performed easily and accurately, and the direct light of the fluorescent lamp 5a is completely invisible.
No glare fatigue.

Further, since the surface emitting lighting unit 5A is extremely thin and is compactly arranged at the corner C between the storage shelf bottom surface U and the wall surface W, the user is not aware of its existence. Moreover, since the fluorescent lamp 5a is surrounded by the reflector 5c and cannot be seen from the outside, the external appearance of the lighting unit 1A is very excellent, and therefore the external appearance of the unit sink is also excellent.

The present invention is not limited to the above embodiment, and the illumination unit 5A may be attached to the wall surface W.

Furthermore, the shape of the end face b of the laminated light guide 5d of the surface emitting lighting unit 5A which is inclined stepwise is not limited to the stepwise one, and the side end face of the light guide plate P to be laminated stepwise is inclined. Alternatively, the end surface b of the laminated light guide body 5d that is inclined stepwise may be formed as a continuous inclined surface.

[0042]

As described above, according to the learning desk with surface emitting lighting of the present invention, the surface emitting lighting unit is attached to an arbitrary position on the back surface of the shelf of the bookshelf mounted on the learning desk body,
Since it is installed, it can illuminate the desk top surface evenly and in the state of directional surface emission, which not only allows the user to learn by bright and even illumination, but also direct light from the linear light source at all. Since it is invisible, you will not feel fatigue due to glare.

Further, according to the partition with surface emitting lighting of the present invention, since the surface emitting lighting unit is installed at an arbitrary position on the back surface of the shelf attached to the partition,
Efficiently illuminates the work surface in a uniform and directional surface emission state, which not only allows the user to learn with bright uniform illumination, but also because the direct light of the linear light source is completely invisible to the eye. No glare fatigue.

According to the unit sink with surface emitting illumination of the present invention, the surface emitting illumination unit is arranged at the corner between the bottom surface of the storage shelf of the unit sink and the wall surface to illuminate the sink. The desired surface on the sink that is actually used can be evenly illuminated by a light distribution with a sharp, low-attenuation directivity, which allows the user to clearly see the objects on the sink. Not only is the operation easy and accurate, but the direct light from the linear light source is completely invisible to the eyes, so that fatigue due to glare is not felt.

Further, in any of the inventions, the surface-emission lighting unit can be formed to be extremely thin, so that the surface-emitting lighting unit is arranged in a very compact manner at the installation location, the user does not feel its presence, and the appearance is also very small. You can be smart and good.

[Brief description of drawings]

FIG. 1 is a perspective configuration diagram of a learning desk with surface-emission illumination according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a main part of the first embodiment.

FIG. 3 is a perspective cutaway view showing a part of a partition with surface emitting illumination showing a second embodiment of the present invention.

FIG. 4 is a configuration diagram of a main part of the second embodiment.

FIG. 5 is a perspective view of a unit sink with surface-emitting illumination showing a third embodiment of the present invention with a part of the sink removed.

FIG. 6 is a configuration diagram of a main part of the third embodiment.

FIG. 7 is a perspective configuration diagram of a conventional learning desk with a lighting unit.

FIG. 8 is a perspective configuration diagram in which a part of a conventional partition with surface emitting illumination is cut away.

FIG. 9 is a perspective view showing a configuration in which a part of a conventional unit sink is cut away.

[Explanation of symbols]

 1A Surface emitting lighting study desk 2 Learning desk body 3 Writing rack 4 Shelf board 5A Surface emitting lighting unit 5a Linear light source 5b Light guide 5c Reflector 6A Surface emitting illumination partition 7 Partition body 10A Surface emitting illumination unit sink 11 Sink Main body 12 Storage shelf a Light incident end surface of light guide b Light emission end surface of light guide C Corner portion L Linear light source P Light guide plate S Desk or work surface U Back surface of shelf plate or storage shelf W Wall surface In the figure , The same reference numerals indicate the same or corresponding parts.

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[Procedure amendment]

[Submission date] May 13, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction content]

When the lighting unit 5 according to FIG. 8 is turned on,
The work surface S of the work table 9 is illuminated by the direct light from the fluorescent lamp 5a and the reflected light from the reflector 5c.

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location F21V 33/00 J 2113-3K G02B 6/00 331 9017-2K (72) Inventor Kenji Suzuki Daido, Kanazawa-ku, Yokohama-shi 1-chome 12-26

Claims (3)

[Claims] 1. A light guide end face of a light guide body in which a plurality of light guide plates having different lengths are stacked to align the light entrance end faces of the respective light guide plates and the light exit end faces are stacked stepwise to form a line on the light entrance end face. -Shaped light source is attached, and a reflector is attached along the light emitting end face to form a surface-emission lighting unit, and the back side of the reflector of the surface-emission illumination unit is a shelf plate of a bookcase provided on the main body of the learning desk. The linear light source is attached along the back side, and the linear light source is arranged on the depth side of the shelf plate to fix the surface emitting lighting unit, and this surface emitting lighting unit concentrates on the desired surface of the desk top of the learning desk body. A learning desk with surface-emission lighting, which is characterized by distributing light. 2. The back surface side of the reflector of the surface emitting lighting unit according to claim 1 is installed on the back surface of the shelf plate provided in the partition, and the linear light source of the surface emitting lighting unit is located on the depth side of the shelf plate. The surface emitting lighting unit is installed and installed on the shelf plate, and the surface emitting lighting unit is used to concentrate light on a desired surface of a work table which is installed in contact with the partition as needed. Characteristic partition with surface emitting lighting. 3. The linear light source of the surface emitting lighting unit according to claim 1 is brought into contact with a corner portion between the bottom surface and the wall surface of the storage shelf of the unit sink, and the surface light emission is performed on one of the bottom surface and the wall surface of the storage shelf. The surface emitting lighting unit is disposed on the bottom surface of the storage shelf with the back surface of the reflector of the lighting unit attached, and the light of the surface emitting lighting unit is concentrated and distributed to a desired surface of the sink body. A unit sink with surface emitting illumination.