JP2008258007A - Street light - Google Patents

Abstract

The present invention provides a street lamp illuminating device that can perform efficient light distribution suitable for the purpose of illumination at an installation place by changing the angle of an illumination unit using a small number of light emitting diodes.
A street light illuminating device including a column a1 and a lighting fixture a2 held on the top of the column a1, the lighting unit a2 having a lens 3 and a light emitting diode 4 integrated therein. 5 is mounted so that 5 is directed downward by the angle changing means 6, and the lighting unit 5 can be changed by the angle changing means 6.
[Selection] Figure 1

Description

  The present invention relates to a street lamp illumination device using a light emitting diode as illumination means.

  Traditionally, incandescent lamps, fluorescent lamps, mercury lamps, etc. have been used for street lighting. However, since the power consumption is large and the lifetime is short, it is expensive to maintain and is expensive. Light emitting diodes having a small life and a long lifetime have come to be used as illumination means.

  However, since light emitting diodes are less efficient for general lighting such as fluorescent lamps, they have not been used much for street lamps and have been mainly used for spot applications. For example, spotlights, downlights, footlights and the like for outdoor use.

On the other hand, as an illumination device for a street lamp using a light emitting diode that changes to illumination such as a general fluorescent lamp, the light emitting diode is directed to the lower surface in order to illuminate a wide range as in Patent Document 1, for example. In addition, a method of arranging in a polygonal shape so as to be oriented in multiple directions is known.
JP 2004-200102 A

  In a lighting device for street lamps using conventional light emitting diodes, a wide range of light distribution is necessary to achieve a light distribution suitable for various lighting purposes, and for this purpose, many light emitting diodes that are directed in multiple directions are used. Therefore, there is a problem that power saving cannot be achieved.

  In this way, the street lamp lighting device using light emitting diodes has a problem that it cannot save power if it tries to illuminate a wide area like a roadway etc., but lighting of each installation space such as a park promenade or a building approach By making the light distribution suitable for the purpose, even with a small number of light emitting diodes, light distribution suitable for the purpose of illumination of the space can be achieved, and power can be saved.

  Therefore, the present invention solves the above-described conventional problems, and by varying the illumination unit with the angle changing means even with a small number of light emitting diodes, efficient light distribution suitable for the purpose of illumination at the installation location is possible, The purpose is to save power.

  In order to achieve the above object, a first solution provided by the present invention is a street lamp that holds a lighting fixture on an upper part of a support column, and a plurality of lightings in which a lens and a light-emitting diode are integrated with the lighting fixture. The unit is mounted so as to be directed downward, and the illumination unit can change the angle by the angle changing means, and can arbitrarily change the light distribution of the illumination.

  By this means, even with a small number of light emitting diodes, efficient light distribution suitable for the purpose of illumination at the place where the street lamp is installed is possible, and power saving can be achieved.

  Moreover, the 2nd solution means which this invention took enables angle change means of a some illumination unit to change an angle to 50 degree | times with respect to perpendicular | vertical downward direction.

  By this means, even with a small number of light emitting diodes, efficient light distribution suitable for the purpose of illumination at the place where the street lamp is installed is possible, and power saving can be achieved.

  Moreover, the 3rd solution means which this invention took is made into a sidewalk light distribution of a some illumination unit by an angle change means.

  By this means, it is possible to set an efficient light distribution suitable for a sidewalk where pedestrians such as a promenade walk.

  Moreover, the 4th solution means which this invention took is to make a several light unit into concentrated light distribution by an angle change means.

  By this means, it is possible to set an efficient light distribution suitable for illumination such as making a sign visible brightly or producing a three-dimensional object such as a monument.

  In addition, a fifth solving means taken by the present invention is to make a plurality of lighting units a community light distribution by an angle changing means.

  By this means, it is possible to brighten the periphery of the bench and set an efficient light distribution suitable for communication on the bench.

  Moreover, the 6th solution means which this invention took is to make a some light unit line light distribution by an angle change means.

  By this means, it is possible to set an efficient light distribution suitable for illumination of a linear elongated area such as a flower bed.

  The seventh solution provided by the present invention is to make a plurality of illumination units perform symbol light distribution by angle changing means.

  By this means, it is possible to set an efficient light distribution suitable for showing street lamps and signs and monuments directly below them as symbols.

  Moreover, the 8th solution means which this invention took is made into the random light distribution A of a some illumination unit by an angle change means.

  By this means, it is possible to set an efficient light distribution such that light spreads from the bench under the street light to the outside road surface and gives a light expression to the road surface in combination with the street light and street furniture.

  In addition, a ninth solving means taken by the present invention is to change a plurality of illumination units into a random light distribution B by an angle changing means.

  By this means, it is possible to set an efficient light distribution that converges light from a street lamp in combination with a street furniture or the like and gives a light expression to the road surface.

  A tenth solution provided by the present invention is one in which illumination is turned on and off by a light sensor.

  By this means, lighting can be automatically turned on and off in accordance with sunset and sunrise.

  The eleventh solution provided by the present invention is that the illumination is turned on by a light sensor and turned off at an arbitrary time by a timer.

  By this means, the light is automatically turned on at sunset, and can be turned off automatically according to the time to be turned off such as the closing time of the park.

  The twelfth solving means adopted by the present invention is to turn on when a person is detected by a human sensor and turn off when no person is detected.

  By this means, it is possible to illuminate only when there is a person and to save power.

  Further, the thirteenth solution provided by the present invention is to dimm at an arbitrary time.

  By this means, it is possible to illuminate for a long time with power saving because it can be dimmed at night.

  A fourteenth solution taken by the present invention is to hold the lighting fixture at a predetermined height from the ground between the two columns.

  By this means, the shadow of the column appears on the flower bed etc. on the opposite side of the luminaire in the single pillar where the street lamp is installed so that the luminaire comes along the side of the sidewalk. When two struts are installed and a lighting fixture is arranged between the struts, the road surface and the flower bed side can be illuminated in the same way.

  The fifteenth solution taken by the present invention is to hold the lighting fixture at a predetermined height from the ground between the four columns.

  By this means, the thickness of the column can be reduced, and the influence of the shadow caused by the column can be eliminated when the entire periphery is illuminated.

  A sixteenth solution taken by the present invention is that the light emitting diode of illumination is white.

  By this means, the color temperature due to the illumination is increased, and the illumination is bluish, resulting in a brighter image.

  A seventeenth solution taken by the present invention is that the light emitting diode of the illumination is light bulb color.

  By this means, the color temperature due to the illumination is lowered, and the illumination becomes yellowish, resulting in a warm and calm image of the space.

  The eighteenth solving means taken by the present invention is to provide means for storing electric power generated by wind power generation means or solar power generation means, and to illuminate using the electric power stored in the electric storage means.

  By this means, it is possible to provide environment-friendly lighting using natural energy without using commercial power.

  ADVANTAGE OF THE INVENTION According to this invention, the street light illuminating device which can aim at power saving by being able to set the light distribution suitable for the illumination objective of the installed space can be provided.

  According to the first aspect of the present invention, a plurality of lighting units in which a lens and a light-emitting diode are integrated are mounted on a lighting fixture held on an upper portion of a support so that the lighting unit is directed downward, and the lighting unit has an angle change. The angle can be changed by the means, and the light distribution of the illumination can be arbitrarily changed. Thus, even if the angle is changed by the angle changing means by integrating the light emitting diode and the lens, the irradiation range of one lighting unit becomes constant, and the required illuminance can be obtained by combining the lighting ranges of multiple lighting units. Thus, even with a small number of light emitting diodes, efficient light distribution suitable for the purpose of illumination in the place where the street light is installed is possible, and power saving can be achieved.

  According to the second aspect of the present invention, the illumination unit can change the angle up to 50 degrees with respect to the vertical downward direction by the angle changing means, so that the illumination is directed from the illumination directly under the street light to the surrounding direction of the street light. By combining the illumination ranges of multiple lighting units, it is possible to achieve efficient light distribution suitable for lighting purposes in streetlight installation locations even with a small number of light-emitting diodes, saving power. Can be achieved.

  The invention according to claim 3 of the present invention is an efficient light distribution corresponding to a sidewalk on which a pedestrian walks such as a promenade by making a plurality of lighting units a sidewalk light distribution corresponding to the width of the sidewalk by means of angle changing means. Can be set.

  In the invention according to claim 4 of the present invention, a plurality of illumination units are concentrated light distribution in which light is concentrated by an angle changing means, thereby making it easy to see a sign brightly or producing a three-dimensional object such as a monument. It is possible to set an efficient light distribution suitable for lighting such as the above.

  The invention according to claim 5 of the present invention is suitable for communication on the bench by brightening the periphery of the bench by making the plurality of lighting units a community light distribution that collects light in an area such as a bench by the angle changing means. It is possible to set an efficient light distribution.

  The invention according to claim 6 of the present invention has an efficiency suitable for illumination of elongated areas such as flower beds by arranging a plurality of illumination units with line light distribution so as to correspond to elongated objects such as flower beds by angle changing means. A good light distribution can be set.

  In the invention according to claim 7 of the present invention, a plurality of lighting units are made into a symbol light distribution in which light is collected around the street lamp by the angle changing means, so that the street lamp and a sign or monument directly below it are shown as symbols. It is possible to set an efficient light distribution suitable for the above.

  In the invention according to claim 8 of the present invention, a plurality of lighting units are changed to a random light distribution A in which light is spread outward from the street light by the angle changing means, so that the combination of the street light and the street furniture is combined. It is possible to set an efficient light distribution such that light spreads from the bench or the like to the road surface on the outside and gives a light expression to the road surface.

  The invention according to claim 9 of the present invention is a combination of a street light and a street furniture, etc. by making a plurality of lighting units a random light distribution B in which light converges outward from the street light by an angle changing means, In combination with a street furniture or the like, the light from the street light converges, and an efficient light distribution that gives an expression of light to the road surface can be set.

  In the invention according to claim 10 of the present invention, the lighting can be automatically turned on and off in accordance with sunset and sunrise by turning on and off the lighting by a light sensor installed on the support column or the lighting fixture. .

  According to the eleventh aspect of the present invention, by installing a light sensor and a timer on a column or a lighting fixture, the light sensor automatically turns on in accordance with the sunset, and at the time when the park is closed, such as a park closing time. In addition, it can automatically turn off.

  In the invention according to claim 12 of the present invention, by installing a human sensor on a column or a lighting fixture, the human sensor detects the person and turns it on, and when no person is detected, the person can turn off and save power. It is.

  According to the thirteenth aspect of the present invention, by installing a dimming control circuit on the column or the lighting fixture, it is possible to reduce the light at any time of the night, thereby enabling long-time illumination with low power consumption.

  According to a fourteenth aspect of the present invention, a street light is provided so that the lighting device comes on the road surface along the side of the sidewalk by holding the lighting device at a predetermined height from the ground between the two columns. In the case of a single pole with a pole, the shadow of the pole appears on the flower bed on the opposite side of the lighting fixture, but when two poles are installed along the side of the sidewalk, the road surface and the flower bed side can be illuminated in the same way. Is.

  In the invention according to claim 15 of the present invention, the thickness of the column can be reduced by holding the lighting apparatus at a predetermined height from the ground between the four columns, and the entire periphery is illuminated. Sometimes it can eliminate the influence of shadows by the support.

  According to the sixteenth aspect of the present invention, when the light emitting diode of the illumination is white, the color temperature due to the illumination is increased, and the illumination is bluish and a brighter image can be obtained.

  According to the seventeenth aspect of the present invention, by making the light emitting diode of the illumination light bulb, the color temperature by illumination becomes lower, and the illumination becomes yellowish and the space can be made warm and calm.

  The invention according to claim 18 of the present invention is to store electric power generated by wind power generation or solar power generation in a storage battery and illuminate using the electric power, and can provide environment-friendly lighting using natural energy. .

(Embodiment 1)
First, a schematic configuration of the street lamp in the present invention will be described.

  As shown in FIG. 1, it has the structure provided with the support | pillar a1 and the lighting fixture a2 hold | maintained on the upper part of this support | pillar a1. 2 shows the inside of the lighting fixture a2. In the lighting fixture a2, the lighting unit 5 in which the lens 3 and the light-emitting diode 4 are integrated is directed downward by the angle changing means 6. The lower part of the lighting fixture a2 is covered with a transparent cover 7. Further, as shown in FIG. 3, the illumination unit 5 is changed by the angle changing means 6 to an irradiation point to a rotation angle X1 of the rotation direction angle (a) and a vertical angle X2 of the vertical direction angle (b). The vertical angle X2 can be changed in a range from 0 degrees to 50 degrees. With this angle changing means 6, it is possible to deal with light distribution from directly below by 0 degrees to light distribution from the end of the sidewalk to the opposite by 50 degrees, and light distribution suitable for the purpose of illumination of the installation space can be set. Is.

  Next, a light distribution simulation adapted to the illumination purpose of the installation space will be described.

  In this simulation, 10 lighting units of 1 W are used as conditions, the angle is changed to the rotation angle X1 and the vertical angle X2, and light distribution suitable for illumination purposes is examined. A number is set for 10 lighting units, and the rotation angle X1 and the vertical angle X2 which are the respective change angles are listed as the lighting unit angle (a). The light distribution when the illumination unit is changed to this angle is the light distribution (b). The height of the lighting unit is set to 3 m, which is the installation height of a general street lamp lighting fixture. The light distribution examined by this simulation will be described next.

  FIG. 4 is a diagram of sidewalk light distribution, showing the illumination unit angle (a) and light distribution (b). By changing the ten lighting units 5 to the rotation angle X1 and the vertical angle X2, respectively, it is possible to set the light distribution corresponding to the sidewalk where pedestrians such as the promenade walk. Note that the sidewalk width in this case is assumed to be 4 meters. By changing the rotation angle X1 and the swing angle X2, a narrower sidewalk, such as a 3-meter wide sidewalk, is wider than this. Even a sidewalk of 5m, for example, a sidewalk with a width of 5 m can be used.

  FIG. 5 is a diagram of the concentrated light distribution, and shows the illumination unit angle (a) and the light distribution (b). By changing the 10 lighting units 5 to the rotation angle X1 and the vertical angle X2, respectively, a light distribution suitable for lighting such as making a sign appear brighter or producing a three-dimensional object such as a monument is set. It is something that can be done. In addition, you may change the magnitude | size of the light distribution of concentrated light distribution by the target object of illumination.

  FIG. 6 is a diagram of community light distribution, showing the illumination unit angle (a) and light distribution (b). By changing the ten illumination units 5 to the rotation angle X1 and the vertical angle X2, respectively, the periphery of the bench can be brightened and light distribution suitable for communication on the bench can be set. Note that the size of the community light distribution may be changed according to an illumination target such as a bench.

  FIG. 7 is a diagram of line light distribution, showing the illumination unit angle (a) and light distribution (b). By changing the ten illumination units 5 to the rotation angle X1 and the vertical angle X2, respectively, it is possible to set a light distribution suitable for illumination of a linear elongated area such as a flower bed. In addition, you may change the magnitude | size of the light distribution of line light distribution with the objects of illumination, such as a flower bed.

  FIG. 8 is a diagram of symbol light distribution, showing the illumination unit angle (a) and light distribution (b). By changing the 10 lighting units 5 to rotation angle X1 and vertical angle X2, respectively, it is possible to set a light distribution suitable for showing street lights and signs and monuments directly below them as symbols. is there. The size of the symbol light distribution may be changed depending on the object to be illuminated.

  FIG. 9 is a diagram of the random light distribution A, showing the illumination unit angle (a) and the light distribution (b). By changing the 10 lighting units 5 to rotation angle X1 and vertical angle X2, respectively, in combination with street lights and street furniture, the light spreads from the bench under the street lights to the outside road surface, and the light on the road surface It is possible to set a light distribution such as giving a facial expression. In addition, you may change the magnitude | size of the light distribution of the random light distribution A with the target object of illumination.

  FIG. 10 is a diagram of the random light distribution B, showing the illumination unit angle (a) and the light distribution (b). By changing the 10 lighting units 5 to rotation angle X1 and vertical angle X2, respectively, in combination with street lights and street furniture, etc., light from the street lights converges in combination with street furniture etc. The light distribution that gives the expression of light can be set. In addition, you may change the magnitude | size of the light distribution of the random light distribution B with the target object of illumination.

  As described above, even with a small number of light emitting diodes, it is possible to set a light distribution suitable for the purpose of illumination of a space where street lamps are installed, and power saving can be achieved.

  In addition, although the holding height of the lighting fixture a2 hold | maintained at the support | pillar a1 is about 3 meters with a general street light, even if it installs in the height of about 1 meter when the illumination purpose is made into approach illumination, it is an angle. The light distribution suitable for lighting purposes can be obtained by changing.

  The angle changing means 6 may be freely changed to an arbitrary angle by a joint, but may be attached to the luminaire a2 by the angle changing means 6 fixed at an angle suitable for the purpose of light distribution in advance. The angle changing means 6 only needs to be able to change the angle. For example, there is an angle change by a stepping motor.

  The lighting fixture a2 is covered with a transparent cover 7 below, but this prevents rain from entering. If the lighting fixture a2 and the lighting unit 5 are waterproofed, the cover 7 is not necessary. .

  In the simulation, ten lighting units 5 are used in the simulation, but at least four lighting units 5 serve the same lighting purpose by increasing the output of the light emitting diodes of the lighting units 5. Light is possible.

  In addition, depending on the purpose of installation, the light emitting diode can be made white to increase the color temperature due to illumination, so that the illumination can be bluish and have a brighter image. The color temperature is lowered and the lighting is yellowish, making the space warm and calm.

(Embodiment 2)
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 11, the solar power generation means 9 is provided on the upper part of the two support columns b8, and the wind power generation means 10, the lighting fixture b11, and the power storage means 12 such as a storage battery are provided between the two pole support columns b8. It has a configuration. The luminaire b11 includes a light sensor 13, a timer 14, a human sensor 15 and a dimming control 16.

  When the light is turned on and off by the light sensor 13, the light can be turned on and off automatically in accordance with sunset and sunrise. Further, the light sensor 13 and the timer 14 can be automatically turned on by the light sensor 13 in accordance with the sunset, and the timer 14 can be automatically turned off in accordance with a time when the park is closed, such as a park closing time. In addition, the human sensor 15 senses a person and turns it on, and when no person is sensed, it can be turned off to save power. Further, since the light reduction control 16 can reduce the light at any time of the night, it can illuminate for a long time with power saving.

  As described above, it is possible to provide an environment-friendly and power-saving street light by using natural energy by solar power generation and wind power generation and using the sensor and control in combination. In addition, when a street light is installed so that the lighting equipment comes on the road surface along the side of the sidewalk, the shadow of the post appears on the flower bed on the opposite side of the lighting equipment with one support, but along the side of the sidewalk. When two columns are installed, the road surface and the flower bed side can be illuminated in the same way.

  In the embodiment, the solar power generation means 9 such as a solar module and the wind power generation means 10 such as a Savonius windmill are provided. However, any one power generation means may be used as long as the power generation is possible.

  In the embodiment, the two columns b8 are provided, but if the cost is possible, four columns may be used. If the number of columns is increased, the thickness of the columns can be reduced, and the entire periphery is illuminated. The effect of the shadow by the support can be eliminated when performing.

  ADVANTAGE OF THE INVENTION According to this invention, the illumination range suitable for the illumination objective of the space installed using few light emitting diodes can be set, and if the efficiency of a light emitting diode becomes high, it can also be applied to the illuminating device for roadways.

Schematic of the street lamp in Embodiment 1 of this invention The figure which shows the inside of the illuminating device in Embodiment 1 of this invention. The figure which shows the angle direction of the illumination unit in Embodiment 1 of this invention ((a) The figure which shows the same rotation direction angle, (b) The figure which shows the same perpendicular direction angle) The figure which shows the sidewalk light distribution in Embodiment 1 of this invention ((a) The figure which shows the same illumination unit angle, (b) The figure which shows the same light distribution) The figure which shows the concentrated light distribution in Embodiment 1 of this invention ((a) The figure which shows the same illumination unit angle, (b) The figure which shows the same light distribution) The figure which shows the community light distribution in Embodiment 1 of this invention ((a) The figure which shows the illumination unit angle, (b) The figure which shows light distribution) The figure which shows the elongate light distribution in Embodiment 1 of this invention ((a) The figure which shows the same illumination unit angle, (b) The figure which shows the same light distribution) The figure which shows the symbol light distribution in Embodiment 1 of this invention ((a) The figure which shows the illumination unit angle, (b) The figure which shows light distribution) The figure which shows the random light distribution A in Embodiment 1 of this invention ((a) The figure which shows the same illumination unit angle, (b) The figure which shows the same light distribution) The figure which shows the random light distribution B in Embodiment 1 of this invention ((a) The figure which shows the same illumination unit angle, (b) The figure which shows the same light distribution) Schematic of the street light in Embodiment 2 of this invention

Explanation of symbols

1 strut a
2 Lighting equipment a
3 Lens 4 Light emitting diode 5 Illumination unit 6 Angle changing means 7 Cover 8 Strut b
9 Solar power generation means 10 Wind power generation means 11 Lighting fixture b
12 Power storage means 13 Light sensor 14 Timer 15 Human sensor 16 Dimming control

Claims (18)

A street lamp that holds a lighting fixture on an upper part of a support, and a plurality of lighting units in which a lens and a light-emitting diode are integrated are mounted on the lighting fixture so as to be directed downward, and the lighting unit has an angle changing means. The street light is characterized in that the angle can be changed by changing the lighting distribution. A street lamp characterized in that the street lamp illumination unit can change the angle up to 50 degrees with respect to the vertical downward direction by the angle changing means. 2. The street lamp according to claim 1, wherein the lighting unit of the street lamp is provided with a sidewalk light distribution by an angle changing means. 2. The street light according to claim 1, wherein the lighting unit of the street light is concentrated light distribution by an angle changing means. The street light according to claim 1, wherein the lighting unit of the street light is made into community light distribution by an angle changing means. The street light according to claim 1, wherein the lighting unit of the street light has a line light distribution by an angle changing means. The street light according to claim 1, wherein the lighting unit of the street light is converted into a symbol light distribution by an angle changing means. The street light according to claim 1, wherein the lighting unit of the street light is changed to a random light distribution A by an angle changing means. The street light according to claim 1, wherein the lighting unit of the street light is changed to a random light distribution B by an angle changing means. The street light according to claim 1, wherein the street light is turned on and off by a light sensor. The street light according to claim 1, wherein the street light is turned on by a light sensor and turned off at an arbitrary time. The street light according to claim 1, wherein the street light is lit by a human sensor and illuminated for an arbitrary time. 2. The street light according to claim 1, wherein the street light is dimmed at an arbitrary time after the lighting is turned on. 2. The street light according to claim 1, wherein the street light luminaire is held at a predetermined height from the ground between the two columns. 2. The street light according to claim 1, wherein a lighting device for the street light is held at a predetermined height from the ground between four columns. The street light according to claim 1, wherein the light emitting diode of the street light is white. The street light according to claim 1, wherein the light-emitting diode of the street light has a light bulb color. The street light according to claim 1, further comprising means for storing electric power generated by wind power generation means or solar power generation means on a street light column, and illuminating with the electric power stored in the power storage means. .

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