JP3098387U - Altar - Google Patents

Abstract

[PROBLEMS] To provide a mysterious Buddhist altar in which the inside of the Buddhist altar can be adjusted to a desired color while enhancing the feeling of Buddha with a very simple configuration without increasing the size of the Buddhist altar.
It is to provide a Buddhist altar which can be downsized while enhancing physical feeling.
A Buddhist altar is a Buddhist altar in which a Buddha image body B or a hanging scroll K having a Buddha image body drawn on a front surface can be arranged. Inside the Buddhist altar, an LED light source 3 for directly or indirectly irradiating a Buddha image body B or a hanging shaft K with a Buddha image body drawn on the front surface is provided.
[Effect] By using a small and high-brightness LED light source inside the Buddhist altar, it is possible to simultaneously radiate light that illuminates the entire Buddhist altar and light that illuminates the face of the Buddha image. .
[Selection] Figure 2

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a Buddhist altar having a function of illuminating a Buddha image or the like arranged inside a Buddhist altar body. In particular, it is a Buddhist altar using a light emitting diode (LED) for at least a part of a light source to be illuminated.
[0002]
[Prior art]
In general, the palace, which is the door to the door of the Buddhist altar, is a shrine in which the Buddhist statues such as gold and a hanging scroll with a Buddha statue are drawn on the front are enshrined, and candles and light bulbs are arranged on both sides in front. The interior of the Buddhist altar is illuminated by moderate brightness.
[0003]
A hanging scroll with a statue of Bodhisattva on the front is arranged in the Buddhist altar, and the hanging scroll is illuminated by a rear lighting device. A mysterious Buddhist altar with a high mystery that can emit red, blue, and green spectral colors in a Buddhist altar by arranging a sheet having a prism property in front of a hanging shaft is known.
[0004]
[Patent Document 1]
JP-A-7-124048
[Problems to be solved by the invention]
However, as Buddha statues and Buddha statues drawn on hanging scrolls are becoming more mainstream, with less brilliant golden colors, and the traditional Buddhist statues with light bulbs and fluorescent lights clearly show the reverence of Buddha statues. Can not do it. In particular, Buddhist altars are often painted with lacquer and are placed in places where direct sunlight does not enter. Usually, since the interior of the Buddhist altar is covered with lacquer or gold leaf, it may be particularly difficult to see with conventional lighting as described above. In addition, providing a separate lighting device behind the Buddhist altar is not preferable at present when miniaturization of the Buddhist altar is desired, and it may not be possible to store it in the Buddha.
[0006]
Therefore, the present invention provides a mysterious Buddhist altar in which the inside of the Buddhist altar can be adjusted to a desired color while enhancing the feeling of Buddha with a very simple configuration without increasing the size of the Buddhist altar.
[0007]
[Means for Solving the Problems]
The present inventor uses a small and high-brightness LED light source 3 inside the Buddhist altar to simultaneously radiate light for keeping the entire Buddhist altar bright and light for illuminating the revered face of the Buddha image. Invented a possible Buddhist altar. That is, this is a Buddhist altar in which a hanging scroll K in which a Buddha statue B or a Buddha statue is drawn on the front is disposed, and a hanging hang K in which the Buddha statue B or the Buddha statue is drawn on the front is placed directly inside the Buddhist altar It is a Buddhist altar provided with an LED light source 3 for irradiating the light or indirectly.
[0008]
The Buddhist altar of claim 2 of the present invention is a Buddhist altar in which a Buddha image body B or a hanging shaft K having a Buddha image body drawn on the front side can be arranged. It is a Buddhist altar provided with a translucent decorative plate 4 capable of guiding light from one side and emitting light from the opposite side and / or front.
[0009]
The Buddhist altar according to claim 3 of the present invention is a Buddhist altar in which a substantially box-shaped kitchen 2 in which a Buddha image body B or a hanging scroll K having a Buddha image body drawn on the front side can be disposed. The side plate of the kitchen 2 is provided with an LED light source 3 and a decorative plate 4 capable of guiding light from the LED light source 3 from one side and emitting light from the opposite side and front. And Thereby, the inside of the altar can be adjusted to a desired atmosphere without causing an increase in the size of the altar and a feeling of cramping inside the altar.
[0010]
The Buddhist altar according to claim 4 of the present invention is a Buddhist altar having a background plate 5 on the inner surface of the back plate of the kitchen 2 which can reflect light emitted from the side surface of the decorative plate 4 in the front direction. In particular, it is preferable that the background plate 5 is disposed at an angle that forms an obtuse angle with the extension of the decorative plate 4 when viewed from the upper surface of the substantially box-shaped kitchen element 2. By arranging the background plate 5 provided in the Buddhist altar as a light reflecting plate in this manner, the light emitted from the LED light source 3 can be effectively used, and the Buddha image body B can be irradiated from behind.
[0011]
The Buddhist altar according to claim 5 of the present invention uses a background plate 5 composed of a light control mirror. Thereby, various patterns can be displayed on the background plate 5. The light control mirror can be formed by simultaneously sputtering metal magnesium and metal nickel. The dimming mirror can adjust the light coming from the outside relatively freely by electric switching, so that the feeling of Buddha can be further enhanced in combination with the light from the LED light source 3.
[0012]
The Buddhist altar according to claim 6 of the present invention has an LED chip and a fluorescent substance capable of absorbing at least a part of the light from the LED chip and emitting light of another wavelength. The LED light source 3 that emits white light composed of a mixture of light and light from a fluorescent substance is used. Such a white LED light source 3 can be further miniaturized than a white light source provided with a plurality of LED chips, and can be installed almost inconspicuously in the Buddhist altar. Further, by adjusting the type and amount of the fluorescent substance, it is possible to emit various white lights from bluish white to reddish warm white.
[0013]
The Buddhist altar according to claim 7 of the present invention has a plurality of concave portions 9 on the light incident surface 4A of the decorative plate 4, and the LED light source 3 is delivered in the concave portions 9. Thereby, the decorative plate 4 can efficiently guide the light from the LED light source 3. Further, when the emission colors of the LED light sources 3 can be individually driven, the brightness in the Buddhist altar can have a dynamic gradient.
[0014]
The Buddhist altar according to claim 8 of the present invention is a Buddhist altar in which irregularities are formed on the back surface 4D and / or the front surface 4C of the decorative plate 4. Thus, the decorative plate 4 becomes a planar light source that emits uniform light from the front 4C, and can illuminate the interior of the Buddhist altar with high luminance. Moreover, by forming a desired design 8 such as a flower decoration or a Buddhist image using the irregularities provided on the decorative plate 4, the light from the LED light source 3 is reflected and scattered, thereby creating a more fantastic atmosphere. It is also possible to bring out.
[0015]
According to the ninth aspect of the present invention, a plurality of irregularities having different shapes are formed on the light emitting surface 4B of the decorative plate 4. Thereby, desired brightness unevenness can be formed in the vertical direction of the light emitting surface 4B of the decorative plate 4. For example, a notch is formed in the end face as unevenness on the end face. By making the notch small above and below the plaque 4 and making the notch near the revered face of the Buddha statue B larger than the other parts, the area near the noble face is brightest and becomes darker as it moves up and down. it can. In this manner, the shape of the concavo-convex shape on the end surface of the decorative plate 4 is increased as desired, and gradually reduced as it moves downward, as desired. Various shapes can be taken, for example, the upper part is small and gradually increases as it goes downward. Similarly, not only the notch but also various shapes can be used for the unevenness provided on the end face.
[0016]
The Buddhist altar according to claim 10 of the present invention uses a rectangular decorative plate 4 having a small thickness from the light incident surface 4A to the light emitting surface 4B. Thus, light can be efficiently guided from the light incident side to the light emitting side of the decorative plate 4. When the back surface 4D and / or the front surface 4C of the decorative plate 4 has unevenness and a change in thickness, the light from the LED light source 3 is reflected and scattered according to the unevenness and the change in thickness, so that the decorativeness is improved. Can be further increased.
[0017]
In the Buddhist altar according to claim 11 of the present invention, an openable / closable door 6 is disposed inside the decorative plate 4, and when the door 6 is opened, the door 6 is located on the front side or outside of the decorative plate 4. A drive rod 7 is provided on the upper and lower surfaces so that the rear surface can be seen, and a light reflection layer is formed on the rear surface of the door 6. Thereby, when the front door 6 is opened and the Buddha image body B is viewed, the entire interior of the Buddhist altar can be further brightened, and when the door 6 is closed and the Buddha image body B is stored, only the decorative plate 4 is used. Emits light, and a quaint atmosphere can be realized.
[0018]
[Embodiment of the invention]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below is an example of a Buddhist altar for realizing the technical idea of the present invention, and the present invention does not specify the Buddhist altar as follows.
[0019]
Further, in this specification, in order to make it easy to understand the claims of the utility model registration, the numbers corresponding to the members shown in the examples are referred to as "the column of the claims for utility model registration" and " In the column of "means of the above". However, the members indicated in the claims of the utility model registration are not specified as the members of the embodiment.
[0020]
The Buddhist altar shown in FIG. 1 is a schematic front view of the Karaki Buddhist altar or the Golden Buddhist altar. In the Buddhist altar, the lower stand 12 and the Buddhist altar main body 1 arranged on the lower stand 12 are suitably arranged. The lower stand 12 and the Buddhist altar main body 1 are formed in a substantially box-like appearance by combining a black altar, a purple altar, a quince, a steel blade, a cherry tree, a mulberry, and the like. The Buddhist altar main body 1 has a built-in kitchen 2 in the opening. As can be seen from the plan view shown in FIG. 2, a surface-mounted LED light source 3 and a translucent decorative plate 4 are arranged on the inner surface of the side plate 1 </ b> A of the Buddhist altar main body 1. On the inner surface of the back plate 1B, a background plate 5 composed of a light-reflecting dimming mirror is provided. The background plate 5 effectively utilizes the light from the light emitting surface 4B of the decorative plate 4, expresses a desired background, and irradiates the Buddha image body B or the hanging shaft K in front from behind. Further, when viewed from the upper surface of the substantially box-shaped kitchen element 2, the angle formed between the extension of the decorative plate 4 and the background plate 5 is configured to form an obtuse angle, thereby irradiating the entire surface of the background plate 5 with light. can do.
[0021]
The kitchen child 2 is provided with a door 6 that can be opened and closed on the front side. As shown in the plan view of FIG. 2, the door 6 is a two-piece door that is connected so that it can be bent in the middle via an intermediate hinge 13, and is connected to the Buddhist altar main body 1 through a fixed hinge 14. . The door 6 on the front end side, which is connected so as to be able to bend via the intermediate hinge 13, has the drive rod 7 protruding up and down and fixed to the upper surface and the lower surface of the front end portion in contact with each other. The drive rod 7 penetrates vertically through a slit 15 provided on the top plate as shown by a chain line in the figure, and is connected to a drive mechanism (not shown) provided on the top surface of the top plate. It is driven by this drive mechanism. The door 6 is arranged so as to be located inside the decorative plate 4 when closed, as shown in the figure. Further, as shown by a chain line in the figure, when the door 6 is opened, it is positioned so as to be located on the front side of the decorative plate 4 so that the rear surface of the door 6 can be seen. That is, the openable and closable door 6 is configured to be opened and closed via the drive rod 7 and move to the inside of the decorative plate 4 and the front side of the decorative plate 4. In addition, a light reflection layer is formed on the back surface of the door 6 to make the whole Buddhist altar a solemn atmosphere.
[0022]
In the present embodiment, as the LED light source 3, an LED chip that emits blue light is mounted in a central concave portion of a rectangular package into which electrodes are inserted. In addition, a light-transmitting resin containing a fluorescent substance capable of absorbing at least a part of light from the LED chip and emitting light of a yellow wavelength is filled in the concave portion to form a light-emitting surface. I have. In this embodiment, the warm white LED light source 3 is used, but a plurality of LED chips capable of emitting blue, green, and red light may be used as the LED light source. By switching the light emission of each LED chip, a desired light emission color can be obtained. That is, by adjusting the current supplied to each LED chip, the LED chips can be lit sequentially in blue, green, red, or the like, and can emit orange or purple as mixed color light of each color. Further, by adjusting the current supplied to the LED light sources by the drive circuit, it is possible to freely set the LED light sources to light up sequentially and to sequentially change the emission color of each LED light source.
[0023]
The decorative plate 4 for guiding the light of the LED light source 3 can be formed of a rectangular glass plate, an acrylic plate, or the like. A plurality of concave portions are formed on the light incident surface 4A of the decorative plate 4, and the surface-mounted LED light source 3 is fitted and fixed in the concave portions. On the other hand, the light emitting surface 4B facing the light incident surface 4A has a plurality of cuts (not shown) capable of directing the light from the LED light source 3 upward. As a result, it is possible to locally illuminate the precious face of the Buddha image body B and the characters and pictures of the hanging scroll K arranged inside the kitchen child 2, and to enhance the feeling of Buddha in the Buddhist altar. On the front 4C of the decorative plate 4 serving as a light emitting surface, a desired design such as a flower pattern such as arabesque, chrysanthemum, and peony or a flower and birds such as birds and beasts, a bodhisattva, an arhat, a heavenly man and a family crest is engraved. On the back surface 4D opposite to the above, irregularities capable of reflecting and scattering light from the LED light source 3 are formed. These designs and concavities and convexities can be provided on only one side. Further, in the present embodiment, an example is shown in which sculpture or the like is applied so that light from the LED light source 3 is also emitted from the front face 4C or the back face 4D, but a desired design is provided on the front and / or back face of the decorative plate. A cut light reflective film may be attached. Further, the decorative plate 4 shown in the figure is formed to be thinner from the light incident surface 4A side toward the light emitting surface 4B. The decorative plate 4 can emit light from the LED light source 3 from the front 4C and irradiate the light from the light emitting surface 4B with high brightness. It goes without saying that each configuration of the Buddhist altar in the present embodiment can be made various sizes depending on the articles to be stored inside. In addition, a plurality of decorative plates can be provided on the left and right in the Buddhist altar, respectively. Further, the decorative plate can be constructed as a space having the structure of the present invention. Furthermore, the light control mirror can be used not only as a background plate but also as a decorative plate.
[0024]
Next, another embodiment according to the present invention will be described with reference to FIGS. 3 and 4 are plan views showing a state where a top plate of the Buddhist altar main body is removed, and FIG. 5 is a schematic exploded perspective view of the Buddhist altar main body. This Buddhist altar main body 1 can be configured like a Karaki Buddhist altar or a Golden Buddhist altar as in the above embodiment. The exterior of the Buddhist altar main body 1 is formed in a substantially box shape by combining a black altar, a purple altar, a quince, an iron blade, a cherry tree, a mulberry, and the like. Inside the side plate 1A of the Buddhist altar main body 1, there is provided a decorative plate 4 made of a translucent glass optically connected to the bullet-shaped LED light source 3 and having a design 8 cut out on the back surface. On the inner surface of the back plate 1B, a background plate 5 composed of a light-reflecting dimming mirror is provided. The background plate 5 effectively utilizes the light from the light emitting surface 4B of the decorative plate 4, expresses a desired background, and irradiates the Buddha image body B or the hanging shaft K in front from behind. The angle between the extension of the decorative plate 4 and the background plate 5 is configured to form an obtuse angle.
[0025]
Furthermore, the Buddhist altar main body 1 is provided with a door 6 that can be opened and closed right and left on the front surface. As shown in the plan views of FIGS. 3 and 4, the door 6 is a two-piece door that is connected so that it can be bent in the middle via an intermediate hinge 13, and is connected to the Buddhist altar main body 1 through a fixed hinge 14. Have been. The door 6 on the front end side, which is connected so as to be able to bend via the intermediate hinge 13, has the drive rod 7 protruding up and down and fixed to the upper surface and the lower surface of the front end portion in contact with each other. As shown in FIG. 5, the drive rod 7 vertically passes through a slit 15 provided in the top plate 1C, and is connected to a drive mechanism (not shown) disposed on the top surface of the top plate 1C. , Driven by this driving mechanism. As shown in FIG. 3, the door 6 is arranged so as to be located inside the decorative plate 4 when closed. As shown in FIG. 4, when the door 6 is opened, the door 6 is folded by the intermediate hinge 13 and is located on the front side of the decorative plate 4 so that the front of the door 6 can be seen. . In FIG. 5, the front right side shows a state in which the door 6 is closed, and the front left side shows a state in which the door 6 is half opened. When the door 6 is half opened, the decorative plate 4 is half hidden. In the embodiment of the present invention, an opening 10 is provided above to illuminate the background plate 5 more brightly, from which the inside of the Buddhist altar is illuminated with another light source. This light source is different from the LED light source 3 provided at the end of the decorative plate 4 and is disposed above the Buddhist altar, so that it is relatively easy to take up a spatial space. Alternatively, a fluorescent lamp can be used.
[0026]
In the present embodiment, as the LED light source 3, a shell-type light emitting diode using an LED chip capable of emitting blue light, a shell-type light emitting diode capable of emitting green light, and a shell-type light emitting diode using an LED chip capable of emitting red light. 3 types of light emitting diodes are used. By adjusting the currents supplied to the respective light emitting diodes, it is possible to emit various mixed color lights in the same manner as described above. In addition, by adjusting the current supplied to the LED light sources by the drive circuit, it is possible to freely set the LED light sources to light up sequentially and to sequentially change the emission color.
[0027]
In the present embodiment, the decorative plate 4 for guiding the light of the LED light source 3 is formed by providing the translucent resin cover 11 on both the end surface of the rectangular glass plate where the light is incident and the end surface where the light is emitted. Let me do it. As shown in FIG. 6, a plurality of recesses 9 are formed in a light-transmissive resin cover 11 that covers an end surface of the decoration plate 4 on the light incident surface 4 </ b> A of the decoration plate 4. Optically connected. The LED light source 3 has a bullet-type light emitting diode arranged and fixed on an elongated glass epoxy substrate along the end surface of the decorative plate 4. By connecting the conductive pattern on the substrate to the drive circuit, desired light emission as described above can be obtained. On the other hand, the light emitting surface 4B of the decorative plate 4 facing the light entrance surface 4A is also provided with a cover made of a light-transmitting resin for covering the end surface of the decorative plate 4, and the light-transmitting resin cover 11 itself is provided. A plurality of concave portions (not shown) are formed like notches. In the present embodiment, the same one as the light-transmitting resin cover 11 on the light incident surface 4A side is also provided on the light emitting surface 4B side. Thereby, the concave portion 9 functions as a plurality of irregularities having different shapes provided on the end surface of the decorative plate 4 on the light emitting surface 4B side. Thus, by providing the translucent resin cover 11 having irregularities on the decorative plate 4, even in the case of a decorative plate using a glass plate that is difficult to process, light from the LED light source is evenly applied to the decorative plate. Can be incident. Further, the light from the LED light source 3 can be locally illuminated from the decorative plate 4 to a desired place. In addition, since the end face of the decorative plate is covered with the soft resin, not only the efficiency of input and output of the light from the LED light source is improved, but also the handleability is dramatically improved. The decorative plate 4 is engraved with a desired design 8 such as a flower pattern such as arabesque, chrysanthemum, and peony, or a bird and beast such as birds and beasts, a bodhisattva, an arhat, a heavenly man, and a family crest. Light can also be reflected and scattered in the front and back directions. It is needless to say that the shape of the unevenness of the light-transmitting resin cover on the light incident surface side and the light emission surface side can be variously changed as desired.
[0028]
The Buddhist altar in the above embodiment is provided with a door 6 that can be opened and closed inside the decorative plate 4 arranged inside the side plates 1A on both sides of the Buddhist altar main body 1. However, the Buddhist altar of the present invention can be provided with a door 6 that can be opened and closed outside the decorative plate 4 as shown in FIG. 7 without providing the door 6 inside the decorative plate 4. Also in this Buddhist altar, the LED light source 3 is disposed on the light incident surface 4A of the decorative plate 4 arranged inside the side plate 1A, and the light of the LED light source 3 is transmitted through the decorative plate 4 to make the interior of the Buddhist altar main body 1 inside. Irradiation is performed on the Buddha image body B and the hanging shaft K arranged at the center.
[0029]
[Effect of the invention]
The Buddhist altar of the present invention can radiate the light of the LED light source capable of emitting light with high brightness in a place according to the purpose. Thereby, the Buddhist altar with a low glossiness can be radiated with a very simple configuration without increasing the size of the Buddhist altar, and the feeling of Buddha can be enhanced. Further, when an LED light source is used as the light source, it is not necessary to substantially replace the light source without breaking the bulb. Further, since the LED light source is smaller than other lighting fixtures, it is possible to prevent the light from the LED light source from being directly viewed, so that the eyes are less tired. Since the temperature rise inside the Buddhist altar can be suppressed as compared with other lighting fixtures such as a light bulb, there is little damage to the offerings.
[Brief description of the drawings]
FIG. 1 is a schematic front view showing a Buddhist altar according to an embodiment of the present invention; FIG. 2 is a schematic plan view showing a state in which a top plate of the Buddhist altar shown in FIG. 1 is removed; FIG. FIG. 4 is a schematic plan view showing a state in which a top plate of the Buddhist altar according to the embodiment is removed, showing a state in which a door is closed. FIG. 4 is a plan view showing a state in which a door of the Buddhist altar shown in FIG. 3 is open; 5 is a schematic exploded perspective view of the Buddhist altar shown in FIG. 3; FIG. 6 is a perspective view showing a schematic configuration of a decorative plate used for the Buddhist altar shown in FIG. 3; FIG. 7 is a top view of the Buddhist altar according to another embodiment of the present invention. Schematic plan view showing the state where the plate has been removed.
DESCRIPTION OF SYMBOLS 1 ... Buddhist altar main body 1A ... Side surface 1B ... Back plate 1C ... Top plate 2 ... Kitchen 3 ... LED light source 4 ... Decorative plate 4A ... Light entrance surface 4B ... Light emission surface 4C ... Front 4D ... Back surface 5 ... Background plate 6 ... Door 7 ... drive rod 8 ... design 9 ... recess 10 ... opening 11 ... translucent resin cover 12 ... lower base 13 ... intermediate hinge 14 ... fixed hinge 15 ... slit B ... Buddha image body K ... hanging shaft

Claims (11)

A Buddhist altar in which a Buddha statue (B) or a hanging scroll (K) with a Buddha statue drawn on the front can be arranged,
A Buddhist altar, wherein an LED light source (3) for directly or indirectly irradiating a Buddha image body (B) or a hanging shaft (K) having the Buddha image body drawn on the front surface is provided inside the Buddhist altar. A Buddhist altar in which a Buddha statue (B) or a hanging scroll (K) with a Buddha statue drawn on the front can be arranged,
Inside the Buddhist altar, an LED light source (3) and a translucent decorative plate (4) capable of guiding light from the LED light source (3) from one side and emitting light from the opposite side and / or front. ) Is provided. A Buddhist altar having a substantially box-shaped kitchen (2) in which a Buddha statue (B) or a hanging scroll (K) having a Buddha statue drawn on the front side can be arranged,
An LED light source (3) and a decorative plate (4) capable of guiding the light from the LED light source (3) from one side and emitting light from the opposite side and / or front side are provided on the side of the kitchen (2). ) Is provided. A background plate (5) that reflects light emitted from a side surface of the decorative plate (4) in a front direction is provided on an inner surface of a back plate of the kitchen (2),
The Buddhist altar according to claim 3, wherein an angle formed between an extension of the decorative plate (4) and the background plate (5) is obtuse when viewed from the upper surface of the substantially box-shaped kitchen element (2). The Buddhist altar according to claim 4, wherein the background plate (5) comprises a dimming mirror. The LED light source (3) has an LED chip and a fluorescent material that absorbs at least a part of light from the LED chip and emits light of another wavelength, and emits light from the LED chip and light from the fluorescent material. The Buddhist altar according to any one of claims 1 to 5, which emits white light composed of a mixture of light. 7. The decoration plate (4) having a plurality of recesses (9) on a light incident surface (4 </ b> A), and the LED light source (3) is arranged in the recesses (9). 8. Buddhist altar described in crab. The Buddhist altar according to any one of claims 1 to 7, wherein the decoration plate (4) has irregularities on a back surface (4D) and / or a front surface (4C). The Buddhist altar according to any one of claims 1 to 8, wherein the decorative plate (4) is formed with a plurality of irregularities having different shapes on a light emitting surface (4B). The Buddhist altar according to any one of claims 1 to 9, wherein the decorative plate (4) has a rectangular shape having a small thickness in a direction from the light incident surface (4A) to the light emitting surface (4B). An openable / closable door (6) is disposed inside the decorative plate (4), and when the door (6) is opened, the door (6) is provided on the front side or outside of the decorative plate (4). 11. The Buddhist altar according to any one of claims 3 to 10, wherein a drive rod (7) is provided on an upper surface and a lower surface so that a back surface of the door (6) can be seen, and a light reflection layer is formed on a back surface of the door (6).

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