JP2006244710A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting device which is possible to illuminate an area in the adjoining of the root of the strut to a remote place, while reducing power consumption. <P>SOLUTION: In the lighting system, a lighting direction of each LED lamp 21 of a central lighting line 23 is turned in the direction of the front of the lighting device 1, a lighting direction of each LED lamp 21 of a left lighting line 22 is turned by 25° to the left from the direction of the front of the lighting system 1, and a lighting direction of each LED lamp 21 of a right lighting line 24 is turned by 25° to the right from the direction of the front of the lighting system 1. Thereby the lighted area is spread and has uniform brightness, since areas lighted by each of lighting lines 22, 23 and 24 are partially overlapped each other, and are arranged in a direction of a juxtaposition of each of the lighting lines 22, 23 and 24. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an illuminating device used for outdoor nighttime illumination or the like.

  Lighting devices such as street lamps, gardens and nightlights on the premises use a straight tube fluorescent lamp of several tens of watts with appropriate illuminance, a circle line, etc. as a light source, and are supplied with power from a commercial AC power source of 3 to 4 m. It illuminates from the height. Therefore, this type of illumination device is different from that for a roadway that illuminates from a height of 5 to 10 m using a mercury lamp or low-pressure sodium lamp having extremely high illuminance as a light source.

  In this type of lighting device, a light source is attached to the top of a 3 to 4 m column to illuminate the front obliquely from the height and appropriately control the illuminance of the light source. In addition, the area around the base of the column could not be sufficiently illuminated, and the feet tended to be dark. For this reason, people with low vision, children, elderly people, people riding bicycles, etc., can hardly see the place away from the pillar or near the base of the pillar, crawling or colliding with stones on the road, the pillar, the base of the pillar, etc. It was easy to do and sometimes fell.

Therefore, Patent Documents 1 and 2 disclose a technique in which a plurality of light emitting diodes (hereinafter referred to as LEDs) are provided on each of the substrates arranged in a polygonal shape to configure an illumination unit, thereby expanding the illumination range. Has been.
JP 2004-200102 A JP 2004-200134 A

  However, Patent Documents 1 and 2 do not sufficiently pursue how the LEDs are arranged and in which direction they should be directed, and it cannot be said that the characteristics of the LEDs are sufficiently exhibited.

  Moreover, in this kind of illuminating device, the power supply which combined the solar cell and the storage battery may be used instead of a commercial alternating current power supply. In this case, it is essential to reduce power consumption, the illumination range becomes narrower, and the illuminance also decreases, making it more difficult to improve the visibility away from the column and near the base of the column.

  Therefore, the present invention has been made in view of the above-described conventional problems, and provides an illuminating device that can illuminate a place far from the vicinity of the base of the column while reducing power consumption. Objective.

  In order to solve the above-described problem, the illumination device of the present invention includes a plurality of directional illumination rows arranged in parallel, and the illumination rows of the illumination rows are partially overlapped with each other so that the illumination ranges of these illumination rows partially overlap each other. The direction is radial.

  In the present invention, the illumination row is bent in an arc shape in the longitudinal direction of the illumination row.

  Furthermore, in the present invention, the light sources of the respective illumination rows are alternately arranged in the illumination rows adjacent to each other.

  In the present invention, the illumination row has a focus of illumination light and forms an illumination range with uniform brightness.

  Furthermore, in the present invention, the light source of the illumination column is an LED.

  Moreover, in this invention, the support | pillar which supports each illumination row | line | column is provided.

  Furthermore, in this invention, each illumination row | line | column is arrange | positioned in the storage space opened by the support | pillar.

  According to the present invention, the illumination rows are arranged in parallel, and the illumination directions of the illumination rows are directed radially so that these illumination ranges partially overlap each other. With such arrangement and orientation of each illumination row, the illumination range of each illumination row can be arranged without waste in the direction in which the illumination rows are arranged side by side, and uniform illumination in a range that extends in the direction of the arrangement is possible. become. For example, a plurality of LEDs are arranged to form an illumination row, and the plurality of illumination rows are arranged in parallel. Even if the directivity of the LED is narrow, a wide range of uniform illumination can be obtained by the arrangement of the illumination rows as in the present invention.

  Further, since the illumination row is bent in an arc shape in the longitudinal direction of the illumination row, the irradiation light of the illumination row diffuses after passing through the vicinity of the arc-shaped center (focal point). Thereby, the illumination range of each illumination row can be expanded in the direction orthogonal to the parallel arrangement direction of each illumination row, and this illumination range can be made uniform brightness.

  Furthermore, since the light sources of the respective illumination rows are alternately arranged in the illumination rows adjacent to each other, the proximity arrangement of the respective illumination rows is facilitated, the space occupied by each illumination row is reduced, and illumination is performed. The size of the apparatus can be reduced.

  On the other hand, when the light sources of each illumination row are arranged side by side without arranging the light sources of each illumination row alternately, the light sources of each illumination row come into contact with each other when the light sources of each illumination row are brought close to each other. In addition, it becomes difficult to dispose the illumination rows close to each other, and the occupied space of each illumination row cannot be reduced.

  Furthermore, the light source of the illumination column is an LED. Since the power consumption of the LED is low, it is possible to use a power source composed of a combination of a solar battery and a storage battery.

  Moreover, the support | pillar which supports each illumination row | line | column is provided. In this case, the lighting device of the present invention can be used as a street lamp or the like. Moreover, you may arrange | position each illumination row | line | column in the storage space opened by the support | pillar. Thereby, an illuminating device fits in the width | variety of a support | pillar.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing Embodiment 1 of the illumination device of the present invention. 2 is a front view showing the lighting device of the present embodiment, FIG. 3 is a side view showing the lighting device of the present embodiment, and FIG. 4 is a plan view showing the lighting device of the present embodiment as viewed from above. FIG. Furthermore, FIG. 5 is a side view showing an illumination range by the illumination device of the present embodiment.

  In the illuminating device 1 of this embodiment, the main illumination part 3 is provided in the upper part of the support | pillar 2, and the sub illumination part 4 is provided in the lower part of the support | pillar 2. Moreover, the solar cell 5 is supported on the upper part of the support | pillar 2, and the some storage battery 6 and the charging / discharging unit 7 are arranged in the support | pillar 2 along with length. The charging / discharging unit 7 charges each storage battery 6 with the generated power of the solar battery 5 or supplies the power of each storage battery 6 to the main illumination unit 3 and the sub illumination unit 4, and the main illumination unit 3 and the sub illumination unit 4. Lights up. The earthquake sensor 8 is a known horizontal seismic sensor using, for example, a steel ball.

  The support | pillar 2 is formed by the sheet-metal processing of aluminum material, and various shaping | molding, and is a square column-shaped hollow. The base plate 11 and each reinforcing plate 12 are formed by cutting an aluminum plate. The surface of the support | pillar 2, the base plate 11, and each reinforcement board 12 is a smooth mirror surface shape.

  The base plate 11 is fixed to the lower end of the column 2, the side walls of the column 2 and the base plate 11 are connected by four reinforcing plates 12, and the base plate 11 is firmly attached to the column 2. The support column 2, the base plate 11, and the reinforcing plates 12 are fixed to each other by welding or screwing.

  The lighting device 1 of this embodiment is a type that is fixed by a base plate 11.

  The column 2 is such that the vertical body portion 2b is linear, and the head portion 2a above the ground height (height from the base plate 11) of about 2.5 m is curved at R0.75 m. A side wall of the support column 2 is opened at a portion of the curved head 2a having a height of about 3 m to form a storage space 2c. The main lighting unit 3 is stored in the storage space 2c, and an opening of the storage space 2c is formed. A transparent cover 13 is attached to the part, and the main illumination part 3 is protected by the transparent cover 13.

  The main illumination unit 3 includes 11 LED lamps 21. Sockets for mounting the LED lamps 21 are arranged and fixed on the back side walls of the columns 2 in the storage spaces 2c of the columns 2, and the LED lamps 21 are inserted and connected to the sockets.

  The LED lamp 21 has a plurality of LEDs mounted geometrically on a substrate along a circle or polygonal line, covers each LED and substrate with a light-scattering sphere made of glass or the like, and is inserted into a socket. Is attached.

  Such an LED lamp 21 has a full width at half maximum of about 20 degrees, for example, and the directivity in the illumination direction is narrower than that of a light bulb or the like.

  Each LED lamp 21 is arranged in three rows to form three illumination rows 22, 23, 24. The LED lamps 21 are arranged alternately in the lighting rows 22, 23, 24 adjacent to each other. This facilitates the close arrangement of the illumination rows 22, 23, 24, narrows the space occupied by the illumination rows 22, 23, 24, reduces the size of the main illumination section 3, and makes the main illumination section 3 It can be stored in the support column 2.

  If the LED lamps 21 are arranged side by side without arranging the LED lamps 21 alternately, the LED lamps 21 come into contact with each other when the LED lamps 21 are brought close to each other. The close arrangement of 23 and 24 becomes difficult, and the occupied space of each illumination row 22, 23 and 24 cannot be reduced.

  The illumination direction of each LED lamp 21 in the center illumination row 23 is directed to the front of the illumination device 1, the illumination direction of each LED lamp 21 in the left illumination row 22 is directed to 25 degrees to the left of the front of the illumination device 1, and the right side The illumination direction of each LED lamp 21 in the illumination row 24 is directed to 25 degrees on the right side of the front surface of the illumination device 1. As a result, the illumination ranges of the respective illumination rows 22, 23, 24 partially overlap each other and are arranged in the juxtaposition direction of the respective illumination rows 22, 23, 24, and the illumination ranges are spread to have uniform brightness.

  Also, the upper five of the LED lamps 21 are arranged on a plane inclined by 47 degrees upward from the horizontal, and the upper five LED lamps 21 are directed obliquely downward and the lower six Are arranged on a plane inclined by 62 degrees upward from the horizontal, and the six lower LED lamps 21 are directed obliquely downward. For this reason, after the irradiation light of the five LED lamps 21 on the upper side and the irradiation light of the six LED lamps 21 on the lower side are once focused at a position about 0.6 m away from the main illumination unit 3. Go away. As a result, the illumination range of the main illumination unit 3 extends in a direction orthogonal to the direction in which the illumination rows 22, 23, and 24 are arranged in parallel, and this illumination range has uniform brightness.

  In this way, the illumination ranges of the respective illumination rows 22, 23, 24 are partially overlapped with each other and arranged in the direction in which the respective illumination rows 22, 23, 24 are juxtaposed, and the illumination range of the main illumination unit 3 is set to each illumination row. Since the main illumination unit 3 can also uniformly illuminate the illumination range A in front of the column 2 as shown in FIGS. . This illumination range A is, for example, farther than about 4 m in front of the column 2 and has a width of about 40 degrees on the left and right.

  In addition, you may change suitably the number, direction, etc. of each illumination row | line | column of the main illumination part 3. FIG. Moreover, you may illuminate in the state which orient | assigned each LED lamp 21 of the main illumination part 3 diagonally downward 45 degree | times with respect to perpendicular | vertical.

  On the other hand, the sub-illumination unit 4 is provided at a portion of the vertical body 2b that is approximately 1 m (approximately 1 m above the ground) from the base plate 11. The side wall of the support column 2 is opened at this portion to form a storage space 2d, the auxiliary illumination unit 4 is stored in the storage space 2d, and a transparent cover 14 is attached to the opening of the storage space 2d. The auxiliary illumination unit 4 is protected by 14.

  The sub illumination unit 4 includes four LED lamps 25. Each LED lamp 25 has substantially the same structure as each LED lamp 21, has a full width at half maximum of about 20 degrees, for example, and has a narrow directivity in the illumination direction compared to a light bulb or the like.

  Each LED lamp 25 is directed in the front direction of the support column 2 and is inclined 60 degrees obliquely downward from the vertical trunk portion 2b. And each LED lamp 25 illuminates a specific range that is slightly away from the front of the column 2 because of its narrow directivity.

  A light reflecting plate 15 is provided on the back side of each LED lamp 25. Scattered light from each LED lamp 25 is reflected by the light reflecting plate 15 and emitted to the front of the column 2. Further, a part of the light emitted forward from each LED lamp 25 is scattered by the transparent cover 14. The light reflected by the light reflecting plate 15 and emitted forward and the light scattered by the transparent cover 14 illuminate the vicinity of the base of the column 2.

  Therefore, the sub-illumination unit 4 illuminates the illumination range B from the vicinity of the base of the support 2 as shown in FIGS. The illumination range B has a maximum width of 2 m and a length of about 4 m, for example.

  In addition, the light of the main illumination part 3 is scattered by the transparent cover 13, the light of the sub illumination part 4 is scattered by the transparent cover 14, and these scattered lights illuminate the support | pillar 2 itself slightly. Thereby, the visibility of the support | pillar 2 improves. Further, each of the transparent covers 13 and 14 has an effect of improving the appearance of the support 2.

  As described above, in the lighting device 1, not only the main illumination unit 3 illuminates the illumination range A in front of the column 2 shown in FIGS. 4 and 5, but also the base of the column 2 illustrated in FIGS. 4 and 5 by the sub-illumination unit 4. It is possible to illuminate the illumination range B from the vicinity to a slightly distant place. For this reason, for example, as shown in FIG. 6, when the lighting device 1 is installed in a garden or the like, the lighting device 1 is illuminated along the road made of the stepping stone 31 from the vicinity of the base of the column 2 as well as the front of the column 2. Can do. Or when the illuminating device 1 is installed as a street light, it can illuminate along a street from the base vicinity of the support | pillar 2.

  Moreover, although the sub illumination part 4 is only four LED lamps 25 and the illumination intensity of each LED lamp 25 is not especially high, since it has directivity in the illumination direction of each LED lamp 25, it is near the base of the support | pillar 2 It is possible to efficiently illuminate a part farther away, and to ensure the visibility of this illumination range. Therefore, the illuminating device 1 is suitable as a street light, a night light in a garden or a premises, etc., and a person driving a bicycle or a car does not feel the illumination of the sub-illumination unit 4 dazzling. Moreover, since the illumination range of the sub illumination unit 4 is specified, the power consumption of the sub illumination unit 4 can be suppressed. Therefore, it is possible to illuminate a portion far from the vicinity of the base of the support column 2 while reducing power consumption.

  If there is no directivity in the illumination direction of the sub-illumination unit 4, in order to illuminate a place far from the vicinity of the base of the support column 2, the illuminance of the sub-illumination unit 4 needs to be extremely high. A gas sealed bulb or the like is used. However, a high-intensity gas-sealed light bulb is not suitable as the sub-illumination unit 4 such as a street light, a garden or a nightlight on the premises, and when used as the sub-illumination unit 4, the illumination of the sub-illumination unit 4 is used for a bicycle or a car. The driver feels dazzling, easily triggers an accident, and the power consumption is extremely increased.

  Further, since the upper head portion 2a of the support column 2 is curved, an excellent appearance can be obtained.

  Furthermore, since the main illumination unit 3 and the sub illumination unit 4 are covered with the respective transparent covers 13 and 14, the surface of the support column 2 has no irregularities, can be prevented from being tampered with, and a slim appearance can be obtained. .

  Moreover, since the aluminum material is used as the material of the support | pillar 2, it is lightweight, can be easily painted, can be colored according to the application, and has excellent durability and good appearance. In the daytime, it is possible to select between visual recognition and non-visual recognition according to the application by coloring.

  Furthermore, as described above, the power consumption of each LED lamp 21 of the main illumination unit 3 and each LED lamp 25 of the sub-illumination unit 4 is about 0.5 to 1.0 W, which is compared with the power consumption of electric lamps and the like. Then it is very small. If 2 to 6 12V long-life storage batteries are applied as each storage battery 6, the main lighting can be applied over 5 to 10 days by a power source composed of a combination of the solar battery 5 and each storage battery 6 with almost no sunshine hours. It becomes possible to light the part 3 and the sub-illumination part 4. For this reason, the illuminating device 1 can serve not only as illumination but also as a guide light, a security light, an emergency light in the event of a disaster such as an earthquake.

  Furthermore, in each LED lamp 21 and 25, since several LED is geometrically arrange | positioned, the light emission itself of each LED is excellent in design, and gives a feeling of comfort to a person.

  Next, the solar cell 5, each storage battery 6, and the charge / discharge unit 7 will be described.

  The solar cell 5 is supported by a support frame 41, and this support frame 41 is rotatably supported by a shaft 42 that protrudes from the upper end of the column 2.

  7A is a partial cross-sectional view showing the solar cell 5, the support frame 41, the shaft 42, and the like, and FIG. 7B is a cross-sectional view showing the dotted line portion of FIG. 7A in an enlarged manner. It is. This solar cell 5 has a lifetime of 20 to 30 years. For example, a single crystal or polycrystalline solar cell is mounted and supported on the back side of a tempered glass having high sunlight transmittance, and a weather-resistant white film is pasted thereon. In addition, it is reinforced with EVA (ethylene vinyl acetate copolymer), silicone resin or the like, and a connector box (not shown) is attached to the back side. The support frame 41 is formed by subjecting stainless steel to sheet metal processing, and sandwiches and supports an edge rubber 5 a fitted to the end of the solar cell 5. Further, the central portion of the support frame 41 bulges downward and becomes hollow, and the structural strength of the solar cell 5 and the support frame 41 is increased, and design changes are also provided. A connector box on the back side of the solar cell 5 is housed here. Further, a cylindrical shaft receiver 43 is provided on the back surface of the support frame 41 so as to be inclined by 70 to 45 degrees with respect to the light receiving surface of the solar cell 5.

  The support frame 41 is rotatably supported by fitting the shaft receiver 43 on the back surface thereof to the shaft 42 at the upper end of the support column 2. In a state of 70 degrees with respect to the light receiving surface, the light receiving surface of the solar cell 5 is inclined 20 degrees with respect to the horizontal direction. The inclination of 20 degrees is poor in the installation environment of the lighting device 1 such as a lot of light receiving obstacles caused by mountain shadows, nearby buildings, structures, etc., and direct light from the sun is almost incident on the solar cell 5 above the support column 2. When not, it is set so that more indirect light from the sky enters the solar cell 5 in place of the direct light.

  Moreover, when the installation environment of the illuminating device 1 is good and the direct light from the sun is incident on the solar cell 5 above the support column 2, the light receiving surface of the solar cell 5 is preferably inclined approximately 35 degrees with respect to the horizontal direction.

  In areas where there is a little snow in the winter season and areas where the amount of solar radiation is extremely low, such as December and throughout the year, it is better to tilt approximately 45 degrees to increase the snow sliding effect.

  Further, the support frame 41 is rotated so that the solar cell 5 is directed in the vicinity of the south direction so that the power generated by the solar cell 5 is maximized.

  A part of the side wall on the back of the support column 2 is screwed to be detachable. The length of a part of the side wall is substantially equal to the length of the arrangement space of each storage battery 6 and the charging / discharging unit 7. If a part of the side wall is removed, the maintenance of each storage battery 6 and the charging / discharging unit 7 is performed. Can be performed.

  Further, gaps are provided between the four corners of the inner wall of the support column 2 and each of the storage batteries 6 and the charge / discharge unit 7. This gap allows air that has risen in the support column 2 in the summer or gas generated from each storage battery 6 to be released upward from the opening of the support column 2, or rainwater and condensation that has entered the support column 2. It is provided for draining from a drain hole (not shown) of the column 2 through the bottom.

  Here, the generated power of the solar cell 5 is supplied to the charge / discharge unit 7. The charge / discharge unit 7 charges each storage battery 6 with the generated power of the solar battery 5. Moreover, since the power generation voltage of the solar cell 5 decreases after sunset, the charging / discharging unit 7 senses sunset when the power generation voltage of the solar cell 5 becomes a certain value or less, and mainly uses the power of each storage battery 6. Supplying to the illumination unit 3 and the sub-illumination unit 4, the main illumination unit 3 and the sub-illumination unit 4 are turned on. Further, the charging / discharging unit 7 measures the lighting time of the main lighting unit 3 and the sub lighting unit 4, and turns off the main lighting unit 3 and the sub lighting unit 4 when the counted lighting time reaches a certain time. This is generally done to save power because no lighting is required at midnight. However, if the role of the lighting device 1 as a safety light or emergency light is emphasized, the main lighting unit 3 and the sub-lighting unit 4 should be turned on until the remaining power of the storage battery 6 does not fall below a certain value until dawn. You may continue.

  This lighting time can be set to any time from 1 to 10 hours, and can also be set from sunset to sunrise.

  Thus, in the illuminating device 1, since the solar cell 5 is directly supported by the support frame 41, the frame for supporting the solar cell 5 itself and the frame for attaching the solar cell 5 to the support column 2 can be shared. The support frame 41 can be downsized, the structure can be simplified, the appearance can be improved, the number of parts can be reduced, and the cost can be reduced. Moreover, the wind receiving area of the solar cell 5 and the support frame 41 can be reduced to reduce the necessary strength thereof, and accordingly, the thickness and mass of the support frame 41 can be further reduced, and the thickness of the support column 2 can be reduced. And mass can be reduced.

  Usually, a commercially available solar cell is provided with an aluminum frame having a thickness of about 25 to 50 mm. If a double structure in which this aluminum frame is further supported by the support frame 41 of the support column 2 is adopted, the size, the structure becomes complicated, the appearance deteriorates, the number of parts increases, the cost increases, etc. Invite. Moreover, since the wind receiving area of a solar cell and a frame increases, it is necessary to increase the intensity | strength of those and the intensity | strength of a support | pillar.

  Moreover, since the power supply which consists of the combination of the solar cell 5 and each storage battery 6 is adopted, the power supply from a commercial AC power supply stops at the time of disasters, such as an earthquake, without requiring the power supply from a commercial AC power supply. In addition, the main illumination unit and the sub-illumination unit can be turned on, which can be used as an emergency light. Furthermore, the wiring work for connecting with a commercial AC power supply is not required, and the solar battery 5 can be installed in any place as long as the power generation is possible.

  Furthermore, since each storage battery 6 and the charge / discharge unit 7 are accommodated vertically between the main illumination unit 3 and the sub-illumination unit 4 in the rectangular column-shaped hollow column 2, the space in the column 2 is effectively used. be able to.

  In addition, the main illumination unit 3 and the sub-illumination unit 4 are driven with a direct current and do not require an alternating current drive like a fluorescent lamp. This affects various radios, mobile phones, heart disease pacemakers, etc. There is no.

  In addition, this invention is not limited to the said embodiment, It can deform | transform variously. For example, the number and arrangement of each LED lamp may be changed as appropriate. Moreover, you may employ | adopt the structure which can change or adjust the illumination direction of the main illumination part 3 and the subillumination part 4 suitably. Further, as the main illumination unit 3, various types of light sources may be employed instead of the LED lamps. Alternatively, as the sub-illumination unit 4, instead of the LED lamp, a combination of another type of light source and a reflecting plate may be adopted to give the sub-illumination unit 4 directivity. Moreover, you may make the color of the irradiation light of the main illumination part 3 and the subillumination part 4 mutually differ.

  Furthermore, a power source composed of a combination of a solar battery and a storage battery and a commercial AC power source may be selectively used, or only a commercial AC power source may be used.

  Moreover, you may change the shape and material of a support | pillar etc. suitably.

It is a perspective view which shows Embodiment 1 of the illuminating device of this invention. It is a front view which shows the illuminating device of FIG. It is a side view which shows the illuminating device of FIG. It is a top view which shows the illuminating device of FIG. 1 seeing from upper direction. It is a side view which shows the illumination range by the illuminating device of FIG. It is a perspective view which shows the example of installation of the illuminating device of FIG. (A) is a fragmentary sectional view which shows the solar cell, a support frame, a shaft, etc. in the illuminating device of FIG. 1, (b) is sectional drawing which expands and shows the dotted-line part of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Support | pillar 3 Main illumination part 4 Sub illumination part 5 Solar cell 6 Storage battery 7 Charging / discharging unit 8 Earthquake sensor 11 Base plate 12 Reinforcement plate 13, 14 Transparent cover 15 Light reflection plate 21, 25 LED lamp 22, 23, 24 Illumination Row 41 Support frame 42 Shaft 43 Shaft support

Claims (7)

  A lighting device, wherein a plurality of illumination rows having directivity are arranged side by side, and the illumination directions of the respective illumination rows are radially directed so that the illumination ranges of these illumination rows partially overlap each other.   The illumination device according to claim 1, wherein the illumination row is bent in an arc shape in a longitudinal direction of the illumination row.   The illumination apparatus according to claim 2, wherein the illumination row has a focus of illumination light and forms an illumination range of uniform brightness.   The illuminating device according to claim 1, wherein the light sources of the respective illumination columns are alternately arranged in the illumination columns adjacent to each other.   The illumination device according to claim 1, wherein the light source of the illumination array is an LED.   The illumination device according to claim 1, further comprising a support column that supports each illumination row. The illumination device according to claim 6, wherein each illumination row is disposed in a storage space opened in the support column.

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