JP2008135381A - Outdoor lighting fixture and lightting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor lighting fixture and lighting method using LEDs as light sources to reduce a load to the environment and exhibiting a crime deterrent effect to contribute to environmental design for safe and ease urban development. <P>SOLUTION: A security light 1 capable of simultaneously irradiating at least two or more colors of irradiation light is provided with a lighting unit body 11 arranged with a plurality of white LEDs 16 and blue LEDs 18 as the light sources, and positioned by a predetermined distance D above the ground surface G, a first illuminating part 13 for emitting white illumination light downward in a direction substantially vertical from the lighting unit body 11, and a second illuminating part 14 for emitting blue illumination light outward in a direction substantially vertical from the lighting unit body 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an outdoor lighting fixture and a lighting method, and more particularly to a technology of an outdoor lighting fixture and a lighting method that can be used for street lights, security lights, and the like and can simultaneously emit at least two colors of irradiation light. .

  Outdoor lighting fixtures such as street lights and security lights are placed on streets, intersections, parking lots and parks in urban areas. Conventionally, incandescent bulbs, mercury lamps, fluorescent lamps, and the like have been used as light sources for outdoor lighting fixtures, but in recent years, lighting fixtures using LEDs (Light Emitting Diodes) as light sources to replace incandescent bulbs have been proposed. ing.

As an example, Patent Document 1 discloses a lighting apparatus using a white LED as a light source, and the light emitting surface portion of a globe is formed in an uneven shape and a curved shape, thereby expanding an irradiation region of light irradiated from the LED. The lighting fixture for the purpose is disclosed (refer patent document 1).
Patent Document 2 includes a wide-angle LED irradiator, a medium-angle LED irradiator, and a narrow-angle LED irradiator, and irradiates light from different illuminators to different areas in the width direction of the sidewalk. A lighting fixture is disclosed (see Patent Document 2).

  As described above, lighting fixtures using LEDs as light sources can reduce power consumption and reduce environmental burdens such as prevention of global warming by reducing the amount of heat generated from the light sources. It is effective in the above, and is also attracting attention because of variations in durability and color development of the light source.

By the way, in recent years, environmental design for safe and secure city planning has been reviewed. Especially, regarding outdoor lighting fixtures, the outdoor lighting fixtures in the area (especially security lights) should be changed to “blue”. Thus, efforts aimed at deterring (or preventing) crime in the area are drawing attention.
The reason why crime prevention can be expected by placing a security light that emits “blue” in the area is as follows: (1) Originally, blue is a sedative effect by acting on human parasympathetic nerves, and universal (2) The blue color improves the visibility at night by the “Purkinje effect” compared to red and orange colors. It is thought that the psychology that "I want" works.
And in some areas, demonstration experiments have already been attempted, and as a result, interesting results have been reported.

However, in the configuration of a conventional outdoor lighting fixture, even if the irradiation light is simply changed to “blue”, if the irradiation light from the lamp body is a single color of blue, the sidewalk surface such as asphalt is usually dark. For this reason, there is a problem in that the contrast of the color tone becomes unbalanced and, on the other hand, pedestrians and traveling vehicles are obstructed from smooth traffic at a position almost directly below the outdoor lighting fixture.
In addition, when a blue LED is assembled in the structure of a conventional outdoor lighting fixture, color unevenness is likely to occur depending on the direction of irradiation due to the unique directivity of the LED, and blue light is emitted from a distant pedestrian or traveling vehicle. Since it is difficult to visually recognize light, there has been a problem that the expected crime prevention effect is reduced.

For example, Patent Document 3 and Patent Document 4 have been proposed in outdoor lighting fixtures from the viewpoint of improving the visibility of irradiation light from distant traveling vehicles and pedestrians (Patent Document 3). And Patent Document 4).
Japanese Patent No. 3498290 JP 2004-116177 A JP 11-1111019 A JP 2003-203506 A

  Therefore, the present invention relates to an outdoor lighting apparatus and lighting method, which solves the above-described conventional problems, and uses an LED as a light source to reduce the environmental burden and effectively exert crime deterrent power. The purpose of the present invention is to provide outdoor lighting equipment and lighting methods that can contribute to environmental design for safe and secure city planning.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in Claim 1, it is the outdoor illuminating device which can irradiate irradiation light of at least 2 colors or more simultaneously, Comprising: A some LED is arrange | positioned as a light source, and it is located only a predetermined distance from the ground surface. The main body and an illumination unit that emits white light at a substantially vertical lower position of the lamp main body and emits blue light at the lamp main body and / or the vicinity thereof.

  That is, in claim 2, the illuminating unit is directed to the outside of the first illuminating unit that irradiates white-type irradiation light toward a substantially vertical lower side of the lamp body, and a substantially vertical lower side of the lamp body. And a second illumination unit that emits blue light.

  In Claim 3, white LED is arrange | positioned as a light source in said 1st illumination part.

  In Claim 4, blue LED is arrange | positioned as a light source in said 2nd illumination part.

  In Claim 5, said 2nd illumination part is provided along the outer periphery part of said 1st illumination part.

  According to a sixth aspect of the present invention, the second illuminating unit is connected to a pair of opposed edge portions of the first illuminating unit.

  According to a seventh aspect of the present invention, the lamp body is fixed directly to the support column.

  According to an eighth aspect of the present invention, the lamp body is attached to the support column through a connection base that can variably adjust the relative angle with the ground surface.

  In Claim 9, the said lamp | ramp main body is arrange | positioned so that the predetermined distance from the ground surface may differ with respect to one support | pillar part.

  According to a tenth aspect of the present invention, automatic power storage means using a solar cell for supplying electric power to the light source is provided.

  In Claim 11, it is the illumination method which irradiates at least 2 colors or more of irradiation light simultaneously, Comprising: Several LED was arrange | positioned as a light source, and it was provided in the lamp main body located only the predetermined distance from the ground surface. The irradiating unit emits light in a substantially vertical lower position of the lamp main body in white, and emits light in blue in the lamp main body and / or its vicinity.

In the present invention, since an LED is used as a light source, power consumption can be suppressed, and reduction of the environmental load such as prevention of global warming by reducing the amount of heat generated from the light source can be achieved.
In addition, the lamp body and / or the position near the lamp body can be visually recognized as “blue” from a distance, and the effect of deterring crime can be expected. The substantially vertical lower part of the lamp body is brightly illuminated in white so that the lower part of the lamp body is lower. Smooth passage of pedestrians and traveling vehicles passing through the road is not hindered.
And by arranging such “blue” lighting fixtures in a plurality of locations in the area, it is possible to contribute to environmental design for safe and secure city planning.

Next, the best mode for carrying out the invention will be described.
1 is a side view showing the overall structure of a security light according to an embodiment of the present invention, FIG. 2 is a perspective view of the lamp body, FIG. 3 is a side view of the lamp body, and FIG. 4 is a lower plan view of the lamp body. FIG. 5 is a lower plan view of the lamp main body of FIG. 4, FIG. 6 is a horizontal plane illuminance distribution diagram of irradiation light irradiated from the lamp main body, and FIG. 7 is an image diagram of light distribution of irradiation light irradiated from the lamp main body. 8 is a side view of a lamp body of a security light according to another embodiment, FIG. 9 is a side view of the lamp body of FIG. 8, FIG. 10 is a front sectional view of the lamp body of FIG. 8, and FIG. FIG. 12 is a side view showing the overall configuration of the crime prevention light of FIG. 1 equipped with a solar power generation system.
In addition, although the following example mainly demonstrates the case where the outdoor lighting fixture of a present Example is used as the crime prevention light 1, as an Example, it is not limited to this, The detail of another Example is mentioned later. (See FIGS. 8 to 12).

First, the whole structure of the outdoor lighting fixture of a present Example is demonstrated below.
As shown in FIG.1 and FIG.2, the outdoor lighting fixture of a present Example is comprised as the security light 1, and several LED16 * 18 is arrange | positioned as a light source, and only the predetermined distance D is upwards from the ground surface. The lamp main body 11 is positioned, and the lighting unit 13 and 14 that emit light in white at a substantially vertical lower position of the lamp main body 11 and emit light in blue at the lamp main body 11 and / or its vicinity is provided. The lamp body 11 is installed in a state where the lamp body 11 is fixed to the support column 10 erected vertically.
In the following, the arrow X direction in FIG. 3 is the front-rear direction of the lamp body 11, and the arrow Y direction in FIGS. 4 and 5 is the left-right direction of the lamp body 11.

  The column 10 is an upright column made of stainless steel, and a lamp body 11 is attached to the uppermost end. In this embodiment, the support column 10 is used as a security light support column, and is erected in a posture in which the lamp main body 11 protrudes at a position near a road shoulder on a roadway or a sidewalk.

  The lamp body 11 is formed by aluminum die casting (or stainless steel), and the upper body 11a and the lower body 11b are assembled together. The upper main body 11 a is substantially elliptical in plan view, is formed in a substantially dome shape so as to protrude upward, and one end in the front-rear direction is connected to the support column 10 via the connection base 12. The lower main body 11b is attached so as to cover the lower surface and the lower side surface of the upper main body 11a, and an opening 11c having a substantially elliptical shape in plan view is formed.

  Two illumination parts 13 and 14 are provided in the hollow inside of the upper main body 11a and the lower main body 11b (see FIG. 3 and the like), and irradiation light is directed downward from each illumination part 13 and 14 through the opening 11c. Irradiated toward. In addition, a globe 15 (translucent cover) is attached to the opening 11c so as to cover the illumination units 13 and 14 from below, and the irradiation light from the illumination units 13 and 14 is transmitted therethrough. The globe 15 is formed of a colorless and transparent acrylic resin or the like and is detachably attached to the opening 11c.

  The lamp body 11 is fixed to the uppermost end of the support column 10 via the connection base 12 with the opening 11c facing downward, and more specifically, with the connection base 12 as a center, the front-rear axis is oriented slightly upward It is fixed with. In this state, the lamp body 11 is positioned so as to be separated from the ground surface G by a predetermined distance D. The predetermined distance D is appropriately set according to the installation location, the illuminance and luminance of the illumination units 13 and 14, and the like. In the crime prevention light 1 of the present embodiment, the lamp body 11 is positioned 3m to 8m above the ground surface G vertically upward.

  The illuminating units 13 and 14 are a first illuminating unit 13 that irradiates white-type irradiation light toward a substantially vertical lower side of the lamp body 11, and a blue-type irradiation light that is directed outward from a substantially vertical lower side of the lamp body 11. It is comprised with the 2nd illumination part 14 which irradiates. As described above, the security light 1 of the present embodiment is provided with the first illumination unit 13 that irradiates the white illumination light and the second illumination unit 14 that irradiates the blue illumination light. 13 and 14 can simultaneously irradiate white and blue light beams (see FIG. 1).

  The term “white” as used herein refers to a color including a color tone from pure white to light gray, and “blue” includes indigo or blue-purple in addition to pure blue. It means color.

  As shown in FIGS. 3 to 5, the first illumination unit 13 is provided in a substantially central portion of the internal space formed by the upper body 11a and the lower body 11b, and has a plate-like irradiation corresponding to the cross-sectional shape. It is configured as a part. Specifically, the 1st illumination part 13 is comprised by several white LED16 * 16 ... as a light source, LED board 17 etc. which fix each white LED16.

The white LEDs 16 are formed in a cannonball shape, and protrude from the LED substrate 17 so as to have a predetermined pitch on the same plane, and in a matrix such as a houndstooth check pattern or a grid pattern. It is arranged.
The LED board 17 is a well-known wiring board formed in a long plate shape, and mounting holes (not shown) that are electrically connected to the connection terminals of the white LED 16 are provided in a predetermined arrangement. The white LED 16 is mounted in a mounting hole at a predetermined position of the LED substrate 17 by solder or the like.
In the first illuminating unit 13 of the present embodiment, white LEDs 16, 16... Are mounted in a line along the front-rear direction of the long plate-like LED substrate 17 at substantially equal intervals, and the LED substrates 17, 17. Are arranged at substantially equal intervals along the left-right direction of the lamp body 11.

  The 2nd illumination part 14 is continuously provided so that the 1st illumination part 13 may be enclosed along the outer periphery part of the 1st illumination part 13 mentioned above, and it is formed as a plate-shaped irradiation part corresponding to a cross-sectional shape. ing. Specifically, the second illumination unit 14 includes a plurality of blue LEDs 18, 18... As a light source, and an LED substrate 17 that fixes each blue LED 18 and is shared with the first illumination unit 13. Yes.

  The blue LEDs 18 are formed in a cannonball shape, and are arranged in a staggered or grid pattern so as to protrude from the LED substrate 17 and have a predetermined pitch on the same plane. It is arranged. In particular, the blue LEDs 18 of the present embodiment are mounted in a row at substantially equal intervals on the LED boards 17 (attachment holes) disposed on both sides of the lamp body 11 in the left-right direction, and are disposed at the center of the opening 11c. It is also attached to both front and rear ends (attachment holes) of the LED substrate 17.

As described above, in the lamp body 11 of the present embodiment, the white LEDs 16, 16... Of the first illumination unit 13 are disposed substantially at the center of the opening 11 c, and the blue LEDs 18, 18. Is arranged so as to surround the first illumination unit 13 (white LEDs 16, 16...).
Note that power is supplied to the white LED 16 and the blue LED 18 via the LED substrate 17 by an LED power supply device (not shown).

  As the white LED 16, an LED having an extremely high luminous intensity (10.00 to 35.00 cd, 25 ° C., 20 mA) and excellent emission characteristics is preferably used. On the other hand, it is sufficient to use a general-purpose LED as the blue LED 18. That is, as will be described later, the white LED 16 in the first illumination unit 13 is a light source as a road illumination that illuminates the ground surface G mainly for pedestrians and traveling vehicles. Even if the predetermined distance D from the ground surface G increases, sufficient brightness and illuminance on the ground surface G can be ensured. On the other hand, the blue LED 18 in the second illumination unit 14 is a light source that illuminates the vicinity of the lamp body 11 mainly for crime prevention, so even a general-purpose LED is sufficiently close to the lamp body 11. Can be illuminated in “blue”.

  The security light 1 of the present embodiment is adjusted so that the average illuminance on the horizontal plane is in the range of 3 to 50 lx depending on the installation location, the predetermined distance D from the ground surface G, and the like. As an example, it is adjusted so that it is at least 30 lx directly below the lamp when installed on a road with a large amount of traffic, and 3 to 10 lx when installed on a road with a small amount of traffic. Moreover, it adjusts so that it may become about 5-40 lx in a general shopping street or a city area, and 1-10 lx in a residential area.

  FIG. 6 is a horizontal plane illuminance distribution diagram of the irradiation light emitted from the lamp body 11. Specifically, FIG. 6A is an illuminance distribution diagram when the lamp body 11 is positioned approximately 7.0 m above the ground surface G, and FIG. It is an illuminance distribution figure when it is located about 4.5 m above.

In particular, the crime prevention light 1 in which the lamp main body 11 is positioned approximately 7.0 m above the ground surface G is provided with a white LED 16 having a super high luminous intensity as a light source of the first illumination unit 13. In the horizontal illuminance distribution, an illuminance of 30 lx is ensured substantially vertically downward, and attenuates to 10 lx, 5 lx, 3 lx, and 1 lx as the distance from the outside in the radial direction increases (FIG. 6A). Thus, in the security light 1, an illuminance of 30 lx is ensured substantially vertically below, and sufficient illuminance is ensured over a wide range in the front-rear direction (± 15 m) and the left-right direction (± 15 m) of the lamp body 11. Therefore, it can be installed near the shoulder of a road with a lot of traffic mainly as road lighting.
On the other hand, in the crime prevention light in which the lamp body 11 is positioned approximately 4.5 m above the ground surface G, the horizontal illuminance distribution has an illuminance of 10 lx in a substantially vertical downward direction, and 5 lx as the distance from the outer side in the radial direction increases. It is attenuated to 3 lx and 1 lx (FIG. 6A). Therefore, the security light 1 can be installed mainly at the position near the shoulder of a sidewalk in a residential area.

  Moreover, in the crime prevention light 1 of the present embodiment, the white illumination light is directed from the first illumination unit 13 toward a substantially vertical lower region of the lamp body 11 (hereinafter, this region is referred to as a substantially vertical lower region T1). Is emitted from the second illuminating unit 14 toward the outside of the lamp body 11 from the substantially vertical lower side, that is, the area outside the substantially vertical lower area T1 (hereinafter, this area is referred to as the lower outer area T2). Is irradiated. Specifically, preferably, in a state where the lamp body 11 is fixed with the opening 11c facing downward, the white LED 16 is directed substantially vertically downward, and the blue LED 18 is directed outward more than substantially vertically downward. (See FIGS. 8 to 10 to be described later).

  That is, in the present embodiment, the irradiation light may be irradiated from the second illumination unit 14 toward the outer side of the lamp body 11 from the substantially vertical lower side. Direction θ and an angle θ (not shown) formed by the substantially vertical lower axis from the lamp body 11 and the direction axis of the irradiation light from the second illuminating unit 14 is directed toward 0 ° <θ ≦ 90 °. Is irradiated. For example, as in the present embodiment, the first illumination unit 13 and the second illumination unit 14 are connected in the same plane, and the irradiation light is irradiated in the same direction toward the substantially vertical downward direction. In addition, the second illumination unit 14 may be disposed so as to face the side surface of the lamp main body 11 (lower main body 11b), and may be configured to irradiate irradiation light in a substantially horizontal direction.

  FIG. 7 is an image diagram of the light distribution of the irradiation light emitted from the lamp body 11. Specifically, FIG. 7A is an image diagram of the light distribution on the horizontal plane A near the lamp body 11, and FIG. 7B is the light distribution on the horizontal plane B near the ground surface G. It is an image figure.

  In the present embodiment, at a position in the vicinity of the lamp main body 11, a white light distribution is obtained by the white light emitted from the first illumination unit 13 in the substantially vertical lower region T1, and the second illumination is provided in the lower outer region T2. A blue light distribution is obtained by the blue light emitted from the portion 14 (FIG. 7A). In such a state, when the security light 1 is viewed from a distance, the lamp body 11 and its lower vicinity are visually recognized as emitting blue light. In this way, the second illumination unit 14 acts as a crime prevention illumination unit that illuminates the lamp body 11 and the vicinity thereof in “blue”.

  On the other hand, in the vicinity of the ground surface G, the substantially vertical lower region T1 is wider in the outer peripheral direction compared to the vicinity of the lamp body 11, and mainly has a single white light distribution (FIG. 7 ( b)). In such a state, for example, when a pedestrian or a traveling vehicle gradually approaches the security light 1 and passes through a substantially vertical lower portion (substantially vertical lower region T1) of the lamp body 11, a substantially vertical lower ground surface. G and its surroundings are emitted in white by white illumination light. Thus, the 1st illumination part 13 acts as a road illumination part which illuminates the ground surface G of a walkway mainly for a pedestrian and a traveling vehicle.

  As described above, the security light 1 according to the present embodiment is an outdoor lighting fixture capable of simultaneously irradiating at least two colors of irradiation light, and includes a plurality of white LEDs 16 and blue LEDs 18 as light sources, and the ground surface. A lamp body 11 positioned above G by a predetermined distance D, and a lighting section that emits white light at a substantially vertical lower position of the lamp body 11 and lightes the lamp body 11 and its vicinity in blue. In particular, the first illuminating unit 13 that irradiates white illumination light substantially vertically downward of the lamp main body 11 and the blue illumination light radiates outward from a substantially vertical lower side of the lamp main body 11. The second illumination unit 14 is provided.

  And by setting it as such a structure, while aiming at reduction of an environmental load, it can contribute to the environmental design for safe and reliable town development by demonstrating a crime deterrent effectively.

  That is, since the security light 1 of the present embodiment uses the white LED 16 and the blue LED 18 as the light source, the power consumption can be suppressed, and the reduction of the environmental load such as the prevention of global warming by the reduction of the light source calorific value can be achieved. . Specifically, measures to prevent global warming by reducing the amount of heat generated from the light source (for example, solving the heat island problem), energy-saving business measures by reducing power consumption, and carbon dioxide reduction business measures as a ripple effect It is effective to use the security light 1 of the present embodiment when conducting business activities in consideration of the environment.

In particular, by using an LED as a light source as in the security light 1 of the present embodiment, the power consumption can be suppressed to 10% to 15% compared to a security light using a conventional fluorescent lamp or the like. The maintenance cost due to the extended service life can be greatly reduced. Therefore, when the security light 1 of the present embodiment is installed in place of the conventional security light, the recombination cost can be covered by reducing the power consumption cost after several years.
Furthermore, by using the LED as the light source, it is difficult for insects to come close to the lamp main body 11, so that the maintenance cost of the lamp main body 11 and the light source (white LED 16 and blue LED 18) can be reduced.

  Further, in the security light 1 of the present embodiment, the lamp main body 11 and its vicinity position are emitted in blue, and the lamp main body 11 and its vicinity position are emitted in “blue” by the blue irradiation light from a distance. Since it can be visually recognized, the crime prevention effect can be expected as the “blue” crime prevention light 1 and the vicinity of the ground surface G is illuminated with a white system. Smooth passage of passengers and traveling vehicles is not hindered. By arranging such “blue” crime prevention lights 1 in a plurality of locations in the area, it is possible to exert a crime deterrent effect and contribute to environmental design for safe and secure city planning.

  Moreover, in the crime prevention light 1 of a present Example, since the 2nd illumination part 14 is provided along the outer periphery part of the 1st illumination part 13, white LED16 is arrange | positioned in the center part and it surrounds the outer periphery. By disposing the blue LED 18, it is possible to efficiently separate the irradiation light of the two colors by the LED having high directivity (straight advancement). In particular, blue illumination light can be emitted from the second illumination unit 14 in all directions, and the visibility of “blue” at the lamp main body 11 and in the vicinity thereof can be improved.

  Moreover, in the crime prevention light 1 of a present Example, since the lamp main body 11 is directly attached and fixed to the support | pillar part 10, an arm member etc. are unnecessary between the support | pillar part 10 and the lamp main body 11, for example, and a structure The manufacturing cost of the security light 1 can be reduced by reducing the number of members.

  In addition, it is preferable that the installation place of the crime prevention light 1 configured as described above is a place where a street crime has occurred or is expected to occur. Specifically, they are placed on urban roads, intersections, parking lots, parks, and the like. In particular, by designing the environment as a model area for crime prevention measures, further effects can be expected.

As a structure of the outdoor illuminating device of a present Example, it is not limited to the structure of the crime prevention light 1 mentioned above.
In another embodiment illustrated and described below, the detailed description of the parts that are substantially the same as those of the above-described embodiment is omitted for the configuration of the lamp body 11 and the like, and mainly the parts that are structurally different. Only the details will be described.

  That is, in the embodiment described above, the lower main body 11b constituting the lamp main body 11 is formed of a light-shielding member such as an aluminum die cast, but is not limited to this, for example, a translucent material such as a non-transparent acrylic resin. It may be formed from a sex member. By setting it as such a structure, in the lamp main body 11, the quantity of the blue irradiation light irradiated to the left-right direction from the 2nd illumination part 14 can be increased, and "blue" of the lamp main body 11 in a distant point The illuminance can be further increased.

Moreover, as a structure of the outdoor illuminating device of a present Example, arrangement | positioning of the 1st illumination part 13 and the 2nd illumination part 14, arrangement | positioning and number of each LED (white LED16 and blue LED18) are especially in the Example mentioned above. It is not limited.
In particular, in the above-described embodiment, the second illumination unit 14 is continuously provided along the outer peripheral edge of the first illumination unit 13 (see FIG. 4 and the like), but at least a pair of the first illumination unit 13 facing each other. May be disposed at the edges, particularly at both edges in the left-right direction (see FIGS. 8 to 10). By disposing the second illumination unit 14 in this way, it is possible to irradiate blue light from the side surface in the left-right direction of the lamp body 11 outward, and when approaching the security light 1 from a distance, “ “Blue” can be visually recognized with certainty.

  Moreover, in the Example mentioned above, although the 1st illumination part 13 and the 2nd illumination part 14 are comprised by the plate surface shape corresponding to a cross-sectional shape (refer FIG. 4 etc.), the lamp main body 11 has the opening part 11c. For example, the LED board 17 is substantially planarly viewed so that the white LED 16 is directed substantially vertically downward and the blue LED 18 is directed more clearly outward than the substantially vertical downward in a fixed state. The center portion is formed to be curved in a substantially semicircular shape in cross section so that it protrudes downward with respect to the edge in the left-right direction, and each LED 16, 18 is mounted along the shape (curved surface) of the LED substrate 17. It may be configured as follows.

  Further, as in the crime prevention light 2 shown in FIGS. 8 to 10, it is formed in a long plate shape so as to cover the opening 21c formed in the lamp body 21, and the left and right direction so as to have an inverted trapezoidal shape in a vertical sectional view. The LED board 27 in which the edge part of each is bent upward may be provided. In the LED board 27, the first illumination part 23 is formed on the horizontal part 27a, and the second illumination part 24 is formed on the pair of oblique parts 27b and 27b. In the illumination units 23 and 24, the LEDs 26 and 28 are mounted on the LED board 27 at substantially equal intervals at a predetermined pitch along the front-rear direction.

  At this time, as a structure of the 1st illumination part 23 and the 2nd illumination part 24, at least the irradiation light of the 2nd illumination part 24 is irradiated toward an outer side rather than the substantially perpendicular downward direction of the lamp main body 11. Furthermore, the angle θ formed by the horizontal plane of the first illumination unit 23 (the plane of the horizontal portion 27a of the LED substrate 27) and the horizontal plane of the second illumination unit 24 (the planes of the oblique portions 27b and 27b of the LED substrate 27) is 0 °. <Θ ≦ 90 ° is provided. With this configuration, the irradiation light of the first illumination unit 13 is irradiated substantially vertically downward of the lamp body 11, and the irradiation light of the second illumination unit 14 is irradiated in the irradiation direction of the irradiation light of the first illumination unit 13. Therefore, it is possible to reliably irradiate the lamp body 11 toward the outer side.

  That is, in such a configuration, irradiation light is irradiated substantially vertically downward from the first illumination unit 23 disposed substantially at the center portion, while the second illumination disposed on both side portions in the left-right direction. Irradiation light is emitted from the portion 24 toward the obliquely downward direction with respect to the substantially vertical downward direction. And by irradiating the blue illumination light from the 2nd illumination part 24 (blue LED28) toward the downward diagonal outer side of the lamp main body 11 in this way, the lamp main body 11 or its vicinity position is more effectively. Can be illuminated in “blue”.

  Moreover, as a structure of the 2nd illumination part 14, in the Example mentioned above, it is comprised so that blue-type irradiation light may be irradiated by arrange | positioning blue LED18 * 18 ... as a light source in the 2nd illumination part 14. FIG. However, for example, the second illumination unit 14 also includes white LEDs 16, 16... As the light source, and the second illumination unit among the globes 15 attached so as to cover the illumination units 13 and 14. As a result, the second illumination unit is colored by coloring the portion through which the irradiation light from 14 is transmitted with a blue paint or by applying a blue paint directly to the white LEDs 16. You may comprise so that blue-type irradiation light may be irradiated from 14. FIG.

  Moreover, the 1st illumination part 13 and the 2nd illumination part 14 may be provided with the reflecting plate (not shown) for reflecting the irradiation light from a light source (white LED16 and blue LED18) to a predetermined direction, for example. . The reflecting mirror is attached so that the irradiation light is efficiently reflected by projecting the tip portions of the white LED 16 and the blue LED 18 from above the LED substrate 17. However, instead of using a reflector, the surface of the LED substrate 17 can be replaced with a mirror finish.

  In the above-described embodiment, the connection base 12 provided in the lamp body 11 is configured to fix the lamp body 11 (upper body 11a) to the support column 10 so that the position of the lamp base body 11 cannot be changed (see FIG. 3), the connection base 12 may be configured so that the horizontal and vertical relative angles with the ground surface G of the lamp body 11 can be variably adjusted. By setting it as such a structure, it becomes easy to create the optimal illumination environment according to an installation place, without limiting the installation place of the crime prevention light 1. FIG.

  Further, as in the embodiment shown in FIG. 11, as the walking lamp integrated street light 3, a plurality of lamp main bodies 31 </ b> L and 31 </ b> H are arranged so that the predetermined distances D <b> 1 and D <b> 2 from the ground surface are different with respect to a single column 30. You may arrange. By adopting such a configuration, for example, in the state where the street light 3 of this embodiment is projected at the boundary between the sidewalk and the roadway, the lamp body 31L protrudes toward the sidewalk, and the lamp body 31H protrudes toward the roadway. By installing, the street light for a sidewalk and the street light for a roadway can be combined with the one street light 3, and the installation cost can be reduced compared with the case where it installs separately.

Specifically, in the street light 3, a pair of lamp main bodies 31L and 31H are arranged with respect to one support column 30, and the respective lamp main bodies 31L and 31H have different predetermined distances D1 and D2 from the ground surface G, respectively. Further, the lamp body 31L is arranged to protrude in the opposite direction so as to be positioned on the same vertical plane, and one lamp body 31L is disposed at a low position (predetermined distance D1) as sidewalk illumination, and the other lamp The main body 33H is disposed at a high position (predetermined distances D2, D2> D1) as roadway illumination. At this time, the predetermined distance D1 in the lamp body 31L is adjusted to be about 3 to 4 m, and the predetermined distance D2 in the lamp body 33H is adjusted to be about 6 to 8 m.
The lamp body 31L / 31H is provided with an illumination unit having a luminous intensity sufficient to satisfy the illuminance standard of a sidewalk or a roadway. In particular, the white LED provided in the lamp main body 31H has a higher luminous intensity than the white LED provided in the lamp main body 33L, and at least 30 lx or more is used.
However, the number and arrangement of the lamp main bodies 31L and 31H are not limited to this. For example, a pair of lamp main bodies may be arranged in a substantially Y shape in plan view, and three or more lamp main bodies are arranged. May be.

Further, as in the embodiment shown in FIG. 12, a photovoltaic power generation system 49 as an automatic power storage means using a solar battery that supplies power to the LEDs 16 and 18 may be provided as the security light 4.
Specifically, as the solar power generation system 49, a solar cell panel 49a that is attached to the upper end portion of the support column 40 and whose solar cells are modularized and laid, and a power storage that stores electric power from the solar cell panel 49a. The device 49b and the like. The power stored in the power storage device 49b is supplied as the power of the light source (LED) of the lamp body 41. Moreover, each solar cell panel 49a, the electrical storage apparatus 49b, etc. are connected through the conducting wire which is not shown in figure. Thus, by providing the solar power generation system 49, the power for night illumination can be covered by sunlight, which can contribute to power saving. In addition, since it is not necessary to install a distribution line or the like, it is easy to design a street and its surrounding environment regardless of the installation location.
In addition, as the installation place of such a crime prevention light 4, the place where installation work is difficult with a conventional crime prevention light, a disaster evacuation place, an emergency evacuation place, etc. are preferable.

  In addition to the photovoltaic power generation system 49, the crime prevention light 4 provided with the above-described photovoltaic power generation system 49 is a communication camera capable of recording and recording for monitoring and conversation, and a rotating lamp as an alarm means for notifying abnormality. In addition, it is used as a crime prevention light with call recording function (so-called “super crime prevention light”) provided with one or more of a notification button and a wired or wireless communication system that can communicate with the main server of the headquarters. Also good. In particular, in the present embodiment, it is possible to illuminate an object positioned substantially vertically below with a white natural color by irradiating white illumination light to the substantially vertically downward position of the lamp body 11. A clear image can be recorded by the communication camera described above.

The side view which showed the whole structure of the security light which concerns on one Example of this invention. The perspective view of a lamp main body. The side view of a lamp body. The bottom plan view of the lamp body. The lower plan view of the lamp body of FIG. The horizontal surface illumination intensity distribution map of the irradiation light irradiated from a lamp main body. The image figure of the light distribution of the irradiation light irradiated from a lamp main body. The side view of the lamp body of the crime prevention light which concerns on another Example. The side view of the lamp main body of FIG. 8 similarly. FIG. 9 is a front sectional view of the lamp body of FIG. 8. The side view which showed the whole structure of the pedestrian integrated street lamp which concerns on another Example. The side view which showed the whole structure of the security light of FIG. 1 provided with the solar power generation system.

Explanation of symbols

1 crime prevention light (outdoor lighting equipment)
DESCRIPTION OF SYMBOLS 10 Support | pillar part 11 Lamp main body 13 1st illumination part 14 2nd illumination part 16 White LED
18 Blue LED
G Ground surface D Predetermined distance

Claims (11)

An outdoor lighting apparatus capable of simultaneously irradiating at least two colors of irradiation light,
A plurality of LEDs are arranged as a light source, and a lamp body that is positioned above a predetermined distance from the ground surface;
An outdoor lighting apparatus comprising: an illumination unit that emits white light in a substantially vertical lower position of the lamp body, and emits blue light in the lamp body and / or its vicinity. The illumination unit is
A first illuminating unit that irradiates white illumination light toward a substantially vertical lower side of the lamp body; and
The outdoor lighting apparatus according to claim 1, further comprising: a second illumination unit that emits blue-colored irradiation light toward an outer side from a substantially vertical lower side of the lamp body.   The outdoor lighting apparatus according to claim 2, wherein the first illumination unit includes a white LED as a light source.   4. The outdoor lighting apparatus according to claim 2, wherein a blue LED is disposed as a light source in the second illumination unit. 5.   5. The outdoor lighting apparatus according to claim 2, wherein the second illumination unit is continuously provided along an outer peripheral edge portion of the first illumination unit.   The outdoor lighting apparatus according to any one of claims 2 to 5, wherein the second lighting unit is connected to a pair of opposing edges of the first lighting unit.   The outdoor lighting device according to any one of claims 1 to 6, wherein the lamp body is fixed directly to the support column.   The outdoor lighting according to any one of claims 1 to 6, wherein the lamp body is attached to the support column through a connection base that can variably adjust a relative angle with the ground surface. Instruments.   The outdoor lighting apparatus according to any one of claims 1 to 8, wherein a plurality of the lamp main bodies are arranged so that a predetermined distance from the ground surface is different from a single column part. .   The outdoor lighting apparatus according to any one of claims 1 to 9, further comprising an automatic power storage unit using a solar battery that supplies power to the light source. An illumination method for simultaneously irradiating at least two colors of irradiation light,
A plurality of LEDs are arranged as a light source, and by an irradiating unit provided on the lamp body located a predetermined distance above the ground surface,
A lighting method characterized in that a substantially vertical lower position of the lamp body emits light in white, and the lamp body and / or a position in the vicinity thereof emits light in blue.

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