JP5568203B2 - Outdoor lighting fixtures - Google Patents

Description

  The present invention relates to the technology of outdoor lighting equipment, and more particularly to the technology of outdoor lighting equipment capable of simultaneously illuminating at least two colors of illumination light using an LED light source.

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

  In recent years, the environmental design for safe and secure city development has been reviewed. Among them, regarding outdoor lighting fixtures, the outdoor lighting fixtures in the area have been changed to ones capable of “blue” lighting. Thus, efforts aimed at deterring (or preventing) crime in the region and improving the quality of life (QOL) of residents are drawing attention. The reason why crime prevention etc. can be expected by placing such outdoor lighting fixtures in the area is as follows: (1) Originally blue is the sedative effect by acting on human parasympathetic nerves and universal preference (2) The blue color is better than the red and orange colors because the “Purkinje effect” improves nighttime visibility. It is considered that the psychology that works.

  From this point of view, conventionally, a white LED is provided as an illumination unit for illuminating the ground surface of the pedestrian road for pedestrians and traveling vehicles, and a blue LED is used as an illumination unit for crime prevention that illuminates the lamp body and its surroundings to “blue”. There has been proposed a configuration of an outdoor lighting fixture that can be provided and can simultaneously illuminate white and blue illumination light (see Patent Documents 1 to 3).

  The outdoor lighting fixtures disclosed in Patent Literature 1 to Patent Literature 3 are a first illumination portion that irradiates white illumination light toward a vertically lower side of the lamp body, and a blue color toward the outside of the lamp body. And a second illuminating unit that irradiates the illumination light, and illuminates a vertical lower position of the lamp body in white, and illuminates the lamp body and / or its vicinity in blue. By adopting such a configuration, the vertical lower portion of the lamp body is brightly illuminated in white so that a pedestrian or a traveling vehicle passing under the lamp body can be smoothly passed, and the lamp body and / or its The effect of crime prevention can be expected when the nearby position is visually recognized as “blue” from a distance.

  In particular, in Patent Document 3, an illumination LED (white LED) and a viewing LED (blue LED) are provided, and a partition wall having a reflecting surface that reflects light emitted from the viewing LED toward the side is provided. An outdoor lighting fixture is disclosed. By adopting such a configuration, the irradiation light emitted from the white LED and the blue LED is mixed, the boundary between the illumination by the white LED and the illumination by the blue LED becomes unclear, and the visibility for “blue” illumination is improved. It is possible to prevent the reduction.

Japanese Patent No. 4210707 Japanese Patent No. 4226663 JP 2009-16180 A

  By the way, in the lighting fixture using an LED light source, an LED board is attached to a lamp body directly or via a support member in a state where the LEDs are arranged on an LED board (wiring board) capable of supplying power to the LEDs. However, in a configuration having a long lamp body whose end in the longitudinal direction is fixed like a security light, the LED substrate and the support member are similarly formed in a long shape. The support member or the lamp body itself is warped or twisted, and there is a problem that the LEDs cannot be regularly arranged along the longitudinal direction of the lamp body based on the target optical design.

  That is, when warping or twisting occurs in the LED substrate or the support member on which the LEDs are arranged, due to the directivity of the LEDs, the irradiation direction of the light from the LEDs changes to cause variations in light distribution. In particular, in the outdoor lighting fixture that can simultaneously illuminate two colors of white and blue illumination light as described above, when the illumination direction of the light from the white LED or the blue LED changes to cause a variation in light distribution, There was a problem that the visibility for “blue” illumination was reduced and the illumination effect of the blue LED was not exhibited.

  Therefore, the present invention relates to an outdoor lighting fixture that solves the above-described conventional problems, and arranges LEDs regularly along the longitudinal direction of the lamp body to prevent a variation in light distribution, and against “blue” lighting. An outdoor lighting fixture with improved visibility is proposed.

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

That is, in claim 1, in an outdoor lighting apparatus capable of simultaneously illuminating at least two colors of illumination light using an LED light source, the cross section is formed in a substantially U-shaped cross-section with an opening formed on one side surface. A first engaged surface that protrudes in the vicinity of the edge of the opening and is continuously extended in the longitudinal direction so as to be parallel to the one side surface on the inner surface facing the internal space of the opening. And a second engaged portion that extends in the longitudinal direction so as to be parallel to the one side surface and the first engaged portion, protruding to an inner side position than the first engaged portion. And a long lamp body, a thin plate-like horizontal portion, and a first engagement portion that protrudes in the horizontal direction from the lateral edge of the horizontal portion and extends continuously in the longitudinal direction. , The horizontal portion and the first on the end portion of the one portion protruding in the vertical direction from the lateral edge of the horizontal portion A second engagement portion which is extended continuously in the longitudinal direction so as to be parallel to the engaging portion, the elongated support member provided is the lamp along the longitudinal direction of the body to the surface of the support member A light source unit provided with white LEDs arranged and blue LEDs arranged continuously with the white LEDs, and an external cover disposed in a region covering the light source unit, and the support member The first engagement is such that the opening is closed by the horizontal portion and the first engagement portion in a state where the piece portion and the second engagement portion are accommodated in the internal space of the lamp body. The lamp body is engaged with the first engaged portion from the outer side of the opening, and the second engaging portion is engaged with the second engaged portion from the inner side of the opening. It can be attached to .

According to a second aspect of the present invention, a reflecting member having a reflecting surface facing the adjacent white LED and the blue LED is provided at the boundary between the adjacent white LED and the blue LED.

According to a third aspect of the present invention, in the light source unit, the white LEDs are arranged along a longitudinal direction of the lamp body, and the blue LEDs are arranged at a position on a free end side of the lamp body continuously from the white LED. Is.

According to a fourth aspect of the present invention, the lamp body is formed with a groove portion for attaching an outer cover along a longitudinal direction on a side surface, and the outer cover is attached with the edge portion in the short direction being engaged with the groove portion. is there.

According to a fifth aspect of the present invention, there is provided a diffusion cover that is disposed at least in the irradiation region of the irradiation light of the light source unit and diffuses the irradiation light irradiated from the light source unit.

According to a sixth aspect of the present invention, the diffusion cover is provided with a convex curved portion that covers the light source portion, and a horizontal portion that extends in a horizontal direction from a lateral edge portion of the curved portion.

According to a seventh aspect of the present invention, the lamp body is provided with a groove portion for attaching a diffusion cover along a longitudinal direction on a side surface thereof, and the diffusion cover is attached to the groove portion with a lateral edge screwed by a screw member. It is what

  As an effect of the present invention, LEDs can be regularly arranged along the longitudinal direction of the lamp body to prevent variations in light distribution, and the visibility with respect to “blue” illumination can be improved.

The side view which showed the whole structure of the security light which concerns on one Example of this invention. The partial cross section side view of a security light. The partial cross section top view of a security light. AA arrow sectional drawing of FIG. The longitudinal direction sectional view of a security light. The perspective view which showed the structure of the reflection member. Sectional drawing which showed the attachment method of the supporting member with respect to a lamp main body, a diffusion cover, and an external cover.

  Next, modes for carrying out the invention will be described.

  As shown in FIGS. 1 to 4, in the outdoor lighting fixture of this embodiment, a plurality of white LEDs 13a and blue LEDs 13b are arranged as LED light sources on a lamp body 11 installed with one end fixed to a column 10. It is provided and is configured as a security light 1 capable of simultaneously illuminating at least two colors of illumination light. Specifically, the security light 1 according to the present embodiment includes a long lamp body 11 to which an end portion in the longitudinal direction is fixed, and a lateral edge (engagement portion 12b. 12c) a long support member 12 that is engaged and attached along the longitudinal direction, a light source unit 13 provided with white LEDs 13a and blue LEDs 13b arranged along the longitudinal direction of the lamp body 11, and at least The light source unit 13 includes a diffusion cover 14 disposed in the irradiation region of the irradiation light, an external cover 15 disposed in a region covering the light source unit 13 and the diffusion cover 14, and the like.

  The support column 10 is an electric pole or an upright column made of stainless steel, and the lamp body 11 is attached to the middle of the support column 10. The support column 10 is erected in a posture in which the lamp body 11 is protruded at a position near a shoulder on a roadway or a sidewalk.

  The lamp body 11 is configured as a long casing made of aluminum die-cast, and has a substantially U-shaped cross section in which an opening 16 is formed on one side surface 11a. The lamp body 11 has a side surface 11a formed in a horizontal plane shape having a rectangular shape in plan view, and an opening 16 is opened along the longitudinal direction at the center in the short direction of the side surface 11a. By attaching the support member 12 to the side surface 11 a of the lamp body 11, the white LEDs 13 a and the blue LEDs 13 b are arranged along the longitudinal direction of the lamp body 11. Further, a diffusion cover 14 and an external cover 15 described later are attached to the side surface 11a of the lamp body 11.

  The lamp body 11 has an internal space that is opened to the external space through the opening 16, and a power supply device 29 and a lighting device 30 to be described later are housed in the internal space. The internal space of the lamp body 11 is sealed by attaching the support member 12 to the opening 16 and detachably attaching the closing members 17 and 18 to both end surfaces of the lamp body 11 in the longitudinal direction, and shuts off the external space. Is done. Thus, in the crime prevention light 1 of the present embodiment, the power supply device 29 and the lighting device 30 are accommodated in the internal space of the lamp body 11 sealed by the support member 12 or the like. Even if the cover 14 or the external cover 15 is removed, the power supply device 29 and the lighting device 30 are not exposed to the external space.

  In the lamp main body 11, engaged portions 19 and 20 are extended along the longitudinal direction on the inner side surface 11 b facing the opening 16, and the engaged portions 19 and 20 are supported by a support member 12 described later. Are engaged with the engaging portions 12b and 12c. The engaged portion 19 is formed near the edge of the opening 16 on the inner side surface 11b, protrudes toward the inner direction of the lamp body 11, and continues in the longitudinal direction of the lamp body 11 parallel to the side surface 11a. And extended. The engaged portion 20 is formed on the inner side surface 11 b at a position on the inner side of the lamp body 11 than the engaged portion 19, and similarly protrudes toward the inner side of the lamp body 11, and the side surface 11 a and the engaged portion 19. The lamp body 11 extends continuously in parallel to the longitudinal direction of the lamp body 11.

  Further, a plurality of groove portions 21, 22, and 23 are formed along the longitudinal direction on the side surface 11a and the side surface 11c of the lamp body 11 of the present embodiment. Specifically, grooves 21 and 21 for attaching the diffusion cover are formed in the side surface 11a of the lamp body 11 along the longitudinal direction. The groove part 21 is recessedly provided in the position which opposes across the opening part 16 of the side surface 11a, and is continuously extended in the longitudinal direction so that each may become parallel. A screw member 24 is screwed into the groove portion 21 at a predetermined position via a lateral edge portion (horizontal portion 14b) of the diffusion cover 14 described later.

  On the side surface 11c at a position facing the side surface 11a of the lamp body 11, there are groove portions 22 and 22 for attaching the outer cover along the longitudinal direction, and groove portions 23 and 23 for attaching the fixing member along the longitudinal direction. Each is formed. The groove 22 is recessed in the vicinity of the edge of the side surface 11a on the side surface 11c, and extends continuously in the longitudinal direction so as to be parallel to the opposite side surface 11c. The groove 22 is engaged with a lateral edge (engagement portion 15a) of the outer cover 15 described later. Moreover, the groove part 23 is recessedly provided in the edge part position of the side surface 11a rather than the groove part 22 in the side surface 11c, and is continuously extended in the longitudinal direction so that each may become parallel in the side surface 11c which opposes. A screw member 25 is screwed into the groove portion 23 at a predetermined position via a fixing member 26 described later.

  The lamp body 11 is provided with a fixing member 26 for fixing to the column 10 at one end (fixed end) in the longitudinal direction. The fixing member 26 is made of a metal material such as an aluminum die cast, and has a pair of opposed pieces 26a and 26a. The pieces 26a and 26a are in contact with the grooves 23 of the side surface 11c of the lamp body 11. The screw member 25 is screwed into the groove 23 while being in contact with the lamp body 11.

  In the security light 1 of the present embodiment, the lamp body 11 is supported and fixed at a predetermined position separated from the ground surface of the column 10 by a predetermined distance by attaching the fixing member 26 to the mounting bracket 27 of the column 10. In this state, the lamp body 11 is fixed in a posture in which the opening portion 16 is directed downward and the other end portion (free end portion) in the longitudinal direction is directed slightly upward (see FIG. 1).

  The support member 12 is a long member attached to the side surface 11a of the lamp body 11, and includes a thin plate-like horizontal portion 12a on the surface of which the light source unit 13 is disposed, and a lateral edge of the horizontal portion 12a. And engaging portions 12b, 12c, and the like formed along. The horizontal portion 12a has a light source portion 13 disposed on a horizontal surface, and is fixed so that the white LEDs 13a and the blue LEDs 13b are arranged in a predetermined arrangement along the longitudinal direction.

  The engaging portions 12b and 12c are formed so as to be able to engage with the engaged portions 19 and 20 formed on the lamp main body 11 described above. Specifically, the engaging portion 12b includes the horizontal portion 12a. It protrudes in the horizontal direction from the edge in the short direction, and extends continuously in the longitudinal direction of the horizontal portion 12a. The engaging portion 12c is horizontally placed on the end portion of the piece portion 12d that protrudes in the vertical direction from the lateral edge portion of the horizontal portion 12a to the back surface (the surface opposite to the surface on which the light source portion 13 is disposed). It is formed so as to be parallel to the portion 12a and the engaging portion 12b, and is continuously extended in the longitudinal direction of the horizontal portion 12a.

  The support member 12 of the present embodiment closes the opening 16 with the horizontal portion 12a and the engaging portion 12b in a state where the engaging portion 12c and the piece portion 12d are accommodated in the internal space of the lamp body 11. Attached to the lamp body 11. In such a state, the support member 12 has the engaging portion 12 b engaged with the engaged portion 19 of the lamp body 11 from the outside of the opening 16, and the engaging portion 12 c is engaged with the engaged portion of the lamp body 11. 20 is engaged from the inside of the opening 16. Further, the horizontal portion 12a and the engaging portion 12b form a flush horizontal surface on the side surface 11a of the lamp body 11 (see FIG. 4).

  The light source unit 13 is disposed on the surface of the support member 12 (the horizontal portion 12a thereof), and white LEDs 13a arranged along the longitudinal direction of the lamp body 11, blue LEDs 13b arranged continuously with the white LEDs 13a, and the like. Is provided. The light source unit 13 irradiates white illumination light toward the lower side of the lamp body 11 in a state where the lamp body 11 is fixed to the support column 10, and has a blue color around the free end portion of the lamp body 11. It acts as a light source for irradiating system illumination light (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.

  The white LEDs 13a are fixed to an LED substrate 13c as a well-known wiring board formed in a long plate shape, and are arranged in series at substantially equal intervals so as to have a predetermined pitch on the same plane of the LED substrate 13c. The LED board 13c is provided with mounting holes (not shown) that are electrically connected to the connection terminals of the white LEDs 13a in a predetermined arrangement. The white LEDs 13a are placed at predetermined positions of the mounting holes by solder or the like. Installed.

  The blue LEDs 13b are fixed to an LED substrate 13d as a well-known wiring board formed in a long plate shape, and are arranged in series at substantially equal intervals so as to have a predetermined pitch on the same plane of the LED substrate 13d. The LED board 13d is provided with mounting holes (not shown) electrically connected to the connection terminals of the blue LEDs 13b in a predetermined arrangement, and the blue LEDs 13b are mounted at predetermined positions of the mounting holes by solder or the like. .

  The white LED 13a and the blue LED 13b are fixed to the surface of the support member 12 by the screw member 28 in a state where the white LED 13a and the blue LED 13b are mounted on the LED substrates 13c and 13d, respectively. In the security light 1 of the present embodiment, a plurality (10 in the present embodiment) of white LEDs 13a are arranged in series along the longitudinal direction at a substantially central portion of the side surface 11a of the lamp body 11 in the short direction. In the present embodiment, four blue LEDs 13b are arranged in series at the free end side position of the lamp body 11 in succession to the white LEDs 13a (see FIGS. 2 and 3).

  Power is supplied to the white LED 13a and the blue LED 13b by the LED power supply device 29 via the LED boards 13c and 13d. The power supply device 29 is connected to a separately provided lighting device 30, and when the lighting device 30 detects that the surrounding has become dark, the power supply device 29 automatically operates based on a detection signal from the lighting device 30. Thus, electric power is supplied to the white LED 13a and the blue LED 13b.

  As the white LED 13a, an LED having high luminance and excellent light emission characteristics is preferably used. That is, as will be described later, the white LED 13a is a light source as a road illumination that illuminates the ground surface mainly for pedestrians and traveling vehicles, and therefore, sufficient brightness on the ground surface can be obtained by using a high-intensity LED. Illuminance can be secured. On the other hand, since the blue LED 13b is a light source mainly serving as crime prevention illumination, even a general-purpose LED can sufficiently illuminate the periphery of the lamp body 11 in “blue”.

  The white LED 13a, the blue LED 13b, the LED substrates 13c and 13d, the power supply device 29, and the like in the light source unit 13 are coated with a silicone resin or the like, and are configured to maintain waterproofness.

  As shown in FIGS. 4 to 6, the security light 1 of the present embodiment includes a reflecting member 31 having a reflecting surface 31 a facing the adjacent white LED 13 a and the blue LED 13 b at the boundary between the adjacent white LED 13 a and the blue LED 13 b. Is provided. The reflection member 31 is formed in a thin plate shape in plan view made of aluminum die cast or the like, and a reflection surface 31a is formed on the front and back surfaces thereof.

  The reflective surface 31a is formed so as to reflect the light directed toward the other white LED 13a and the blue LED 13b facing the other of the irradiated light irradiated by the white LED 13a and the blue LED 13b in the opposite direction. In the reflecting member 31 of the present embodiment, the reflecting surface 31a is a horizontal surface facing the adjacent white LED 13a and the blue LED 13b, and the angle formed between the side surface 11a of the lamp body 11 and the reflecting surface 31a is substantially perpendicular. Is formed.

  The reflection member 31 is disposed on the LED substrate 13c of the light source unit 13 along the short direction of the lamp body 11, and is disposed at the boundary between the adjacent white LED 13a and the blue LED 13b. Preferably, it is disposed at a position closer to one of the white LED 13a and the blue LED 13b than an intermediate position between the adjacent white LED 13a and the blue LED 13b. In the present embodiment, it is disposed at a position closer to the white LED 13a. Yes.

  The reflection member 31 is formed such that the length in the height direction from the LED board 13c is larger than the protruding lengths of the white LED 13a and the blue LED 13b mounted on the LED boards 13c and 13d. However, the length of the reflecting member 31 in the height direction is determined so as not to contact the diffusion cover 14 attached to the lamp body 11.

  2 to 4, the diffusion cover 14 is formed in a substantially rectangular shape in plan view, and the irradiation light emitted from the white LED 13 a and the blue LED 13 b of the light source unit 13 is not only in the vertical direction but also in light incident from an oblique direction. It is formed so that it can radiate uniformly in all directions on the surface. Specifically, the diffusion cover 14 of the present embodiment is a horizontal extending from the convex curved portion 14a covering the white LED 13a and the blue LED 13b of the light source unit 13 and the lateral edge of the curved portion 14a in the horizontal direction. Part 14b.

  The diffusion cover 14 is formed using a material such as a milky white type acrylic resin commonly called “milk half”, a transparent color type PET resin, or a polycarbonate resin. In particular, as the diffusing cover 14, one having a total light transmittance of 70% to 90% and a diffusing rate of 20% to 50% is preferably used. The diffusion cover 14 is formed to have a thickness of at least about 3 mm so that light incident from an oblique direction can be emitted as non-directional light.

  The diffuser cover 14 has a curved portion 14a located on the side surface 11a of the lamp body 11 in an irradiation region of the irradiation light of the light source unit 13, that is, a region including immediately above and immediately above the white LED 13a and the blue LED 13b of the light source unit 13. The horizontal portion 14 b is attached to the groove portion 21 formed on the side surface 11 a of the lamp body 11 by being screwed by the screw member 24. With this arrangement, the irradiation light emitted from the white LED 13a and the blue LED 13b of the light source unit 13 is diffused to a part of the diffusion cover 14 so that the luminance is not biased and transmitted toward the outer peripheral direction. The

  Further, when the diffusion cover 14 of this embodiment is attached to the side surface 11a of the lamp body 11, the horizontal portion 14b is in contact with the side surface 11a, the horizontal portion 12a, and the engaging portion 12b of the lamp body 11. Therefore, the horizontal portion 12a and the engaging portion 12b of the support member 12 are pressed toward the engaged portion 19 of the lamp body 11 by the horizontal portion 14b, and the support member 12 is stably fixed to the lamp body 11. Moreover, since the surface of the side surface 11a of the lamp body 11 is covered with the diffusion cover 14 without a gap, light that does not diffuse through the diffusion cover 14 is not directly irradiated to the outside, and glare caused by obstacle light (glare) Can be reduced.

  The outer cover 15 is formed in a substantially U-shaped cross section as a long casing made of a synthetic resin such as a transparent acrylic resin. The outer cover 15 has an engaging portion 15 a that can be engaged with a groove portion 22 formed in the lamp body 11 along the longitudinal direction at an edge in the short direction, and a light source on the side surface 11 a of the lamp body 11. It is an area that covers the portion 13, and is disposed in an area that covers the diffusion cover 13 attached to the side surface 11 a, and the engaging portion 15 a is engaged and attached to the groove portion 22 formed on the side surface 11 a of the lamp body 11.

  Here, with reference to FIG. 7, a method of attaching the support member 12, the diffusion cover 14, and the external cover 15 to the lamp body 11 will be described below.

  First, on the surface of the support member 12, white LEDs 13a are arranged in series along the longitudinal direction in advance, and blue LEDs 13b are arranged in series continuously with the white LEDs 13a. Then, with respect to the lamp body 11 with the opening 16 opened (FIG. 7A), the engaging portion 12b is engaged with the engaged portion 19 of the lamp body 11 from the outside direction of the opening 16. In the state where the engaging portion 12c is engaged with the engaged portion 20 of the lamp body 11 from the inner side of the opening 16, the lamp body 11 is elongated from one longitudinal end side (free end side). It is attached by sliding in the direction (FIG. 7B). In the state where the support member 12 is attached, the blue LEDs 13 b are arranged at the position of the free end portion of the lamp body 11.

  The diffusion cover 14 irradiates the lamp body 11 to which the support member 12 is attached (FIG. 7B) with the horizontal portion 14 b abutting against the side surface 11 a of the lamp body 11 to irradiate the light emitted from the light source unit 13. The curved portion 14a is disposed in the region, and in this state, the horizontal portion 14b is attached to the groove portion 21 of the lamp main body 11 by being screwed by the screw member 24 (FIG. 7C).

  The outer cover 15 is connected to the lamp body 11 to which the support member 12 and the outer cover 14 are attached (FIG. 7C), with the engaging portion 15b engaged with the groove portion 22 of the lamp body 11, and the lamp body. The main body 11 is attached by sliding in the longitudinal direction from one longitudinal end side (free end side) (FIG. 7D). When the external cover 15 is attached to the lamp body 11, the closing member 18 is attached to the free end of the lamp body 11.

  In addition, when removing the support member 12, the diffusion cover 14, and the external cover 15 from the lamp body 11, the work is performed in the reverse order to the mounting method described above.

  Next, the illumination effect of the crime prevention light 1 of a present Example is demonstrated below.

  When the security light 1 of the present embodiment is used by being attached to a column 10 installed on the sidewalk side of the road, the other end portion in the longitudinal direction (free end) with the opening 16 of the lamp body 11 facing downward. The lamp body 11 is supported so that the longitudinal direction of the lamp body 11 is located along the crossing direction of the road (see FIG. 1). In such a state, the white LED 13a and the blue LED 13b are positioned on the free end side so that the optical axis is directed below the lamp body 11 and the blue LED 13b is not overlapped with the optical axis of the white LED 13a. .

  When the white LED 13a and the blue LED 13b are turned on while the lamp body 11 is supported on the column 10, the light (direct light) emitted from the white LED 13a and the blue LED 13b, the LED substrates 13c and 13d, the support member 12, and Light (indirect light) reflected by the reflecting surface 31 a of the reflecting member 31 is transmitted through and diffused from the diffusion cover 14 while being diffused. Then, the light diffused from the diffusion cover 14 passes through the external cover 15 and is irradiated as illumination light toward the lower side of the lamp body 11 and the outer peripheral direction (the traveling direction of the road).

  In this embodiment, white illumination light is emitted downward from the lamp body 11 by the white LED 13a, the lower position of the lamp body is illuminated in white, and the periphery of the free end of the lamp body 11 by the blue LED 13b. Is illuminated in blue. For this reason, the lower position of the lamp body 11 is brightly illuminated in white, so that a pedestrian or a traveling vehicle passing under the lamp body 11 can pass smoothly, and the periphery of the free end of the lamp body 11 is far away. From the point of view, the effect of crime prevention can be expected by being visually recognized as “blue”.

  As described above, the security light 1 according to the present embodiment is an elongated lighting device with an end in the longitudinal direction fixed in an outdoor lighting fixture that can simultaneously emit at least two colors of illumination light using an LED light source. The lamp body 11, a long support member 12 that is attached to one side surface 11 a of the lamp body 11 with a short edge in the longitudinal direction engaged with the lamp body 11, and the lamp body 11 on the surface of the support member 12. A light source unit 13 provided with white LEDs 13a arranged along the longitudinal direction and blue LEDs 13b arranged continuously with the white LEDs 13a; and an external cover 15 disposed in a region covering the light source unit 13. Therefore, the white LED 13a and the blue LED 13b are regularly arranged along the longitudinal direction of the lamp body 11 to prevent a variation in light distribution and to improve the visibility with respect to the “blue” illumination. Kill.

  That is, the security light 1 according to the present embodiment has the white LED 13 a and the blue LED 13 b arranged in advance on the support member 12, and the edges in the short direction of the support member 12 are engaged along the longitudinal direction of the support member 11. Since the support member 12 is configured to be attached to the lamp body 11, the rigidity of the engaging portion between the lamp body 11 and the support member 12 is increased. As a result, the lamp body 11 or the support member 12 is prevented from being warped or twisted. The white LED 13a and the blue LED 13b can be regularly arranged along the longitudinal direction of the lamp body 11 based on the optical design.

  And in this crime prevention light 1 which can irradiate simultaneously the illumination light of two colors of white and blue using white LED13a and blue LED13b for the light source part 13 like a present Example, white LED13a and blue LED13b are lamps. By arranging regularly along the longitudinal direction of the main body 11, variations in light distribution can be prevented. Furthermore, since it becomes possible to efficiently obtain a desired light distribution based on the target optical design, the visibility for “blue” illumination can be improved.

  Further, in the security light 1 of this embodiment, in the lamp body 11, the engaged portions 19 and 20 are extended along the longitudinal direction on the inner side surface 11b facing the opening 16 formed on one side surface 11a. The support member 13 has engaging portions 12b and 12c that can engage with the engaged portions 19 and 20 at the edge in the short direction, so that the rigidity of the engaging portion of the lamp body 11 and the support member 12 is increased. Is more enhanced.

  Moreover, since the crime prevention light 1 of a present Example comprises the reflection member 31 which has the reflective surface 31a which opposes the adjacent white LED 13a and blue LED 13b in the boundary of adjacent white LED 13a and blue LED 13b, it adjoins. In the vicinity of the boundary between the white LED 13a and the blue LED 13b, the light directed toward the other white LED 13a and the blue LED 13b can be reduced from the irradiation light irradiated by the white LED 13a or the blue LED 13b. Therefore, in the light source part 13, the mixing of the illumination light by the light which goes to the other white LED 13a and blue LED 13b side which opposes can be reduced, and the visibility with respect to "blue" illumination can be improved.

  In particular, since the white LED 13a is usually used with higher brightness than the blue LED 13b, the light directed toward the other blue LED 13b facing the other side of the irradiated light emitted by the white LED 13a is opposite to that. By reflecting in the direction, reduction of the illumination effect by the blue LED 13b can be effectively prevented. Further, since light leaking to the side from the white LED 13a and the blue LED 13b can be reflected to effectively use the light, illumination with a wider range of light distribution is also possible.

  In addition, the security light 1 of the present embodiment is provided at least in the irradiation region of the irradiation light of the light source unit 13, and is provided with a diffusion cover 14 that diffuses the irradiation light irradiated from the light source unit 13. Illumination with Furthermore, by diffusing and averaging the light emitted from the white LED 13a and the blue LED 13b by the diffusion cover 14, glare can be reduced, the outdoor space illumination is improved, and the light source unit 13 Even if it is a peep, dazzling can be reduced.

  Further, in the security light 1 of the present embodiment, a groove portion 21 for attaching a diffusion cover is formed along the longitudinal direction on the side surface 11a of the lamp body 11, and the diffusion cover 14 has a threaded edge in the short direction in the groove portion 21. A groove portion 22 for attaching an external cover is formed along the longitudinal direction on the side surface 11a of the lamp body 11 and the outer cover 15 has a short edge in the short direction. Since it is configured to be engaged and attached, the rigidity of the lamp body 11 itself can be further increased, and the lamp body 11 can be prevented from warping or twisting.

  In addition, as a structure of the outdoor lighting fixture, it is not limited to the Example mentioned above, A various change is possible unless it deviates from the objective of this invention.

  That is, in the embodiment described above, the support member 12 is attached to the lamp body 11 by engaging the engaging portions 12 b and 12 c of the support member 12 with the engaged portions 19 and 20 formed on the lamp body 11. However, the mounting structure of the support member 12 is not limited to this. That is, if the support member 12 is configured such that the edge in the short direction is engaged along the longitudinal direction of the lamp body 11, the shape of the engagement portion of the support member 12 and the engaged portion of the lamp body 11 The number and the like can be changed as appropriate.

  Further, the mounting structure such as the diffusion cover 14 and the outer cover 15 is not limited to the above-described embodiment, similarly to the support member 12. For example, the diffusion cover 14 may be attached by being engaged with an engaged portion formed on the side surface 11a of the lamp body 11, and the outer cover 15 may be attached by being screwed with a screw member.

  In the above-described embodiments, the configuration in which the white LEDs 13a and the blue LEDs 13b are continuously arranged in a line along the longitudinal direction has been described. However, the number and arrangement of the white LEDs 13a and the blue LEDs 13b are not limited thereto. For example, a plurality of white LEDs 13a and blue LEDs 13b may be continuously arranged along the longitudinal direction.

  In the above-described embodiment, the angle between the side surface 11a of the lamp body 11 and the reflecting surface 31a is a horizontal plane facing the adjacent white LED 13a and the blue LED 13b at the boundary between the adjacent white LED 13a and the blue LED 13b. Although the configuration in which the reflecting member 31 having the reflecting surface 31a formed so as to be substantially perpendicular has been described, the shape, arrangement, and the like of the reflecting member 31 are not limited thereto. For example, a plurality of reflecting members 31 may be provided at the boundary between adjacent white LEDs 13a and blue LEDs 13b, and the reflecting surface 31a may be formed in a curved surface shape or a tapered surface shape.

  In the above-described embodiment, the configuration in which the diffusion cover 14 is provided has been described. However, the diffusion cover 14 is not necessarily provided. When the diffusing cover 14 is not used, the outer cover 15 in which a prism capable of uniformly radiating irradiated light emitted from the white LED 13a and the blue LED 13b of the light source unit 13 in all directions is formed on the inner peripheral surface is preferable. Used.

1 crime prevention light (outdoor lighting equipment)
DESCRIPTION OF SYMBOLS 11 Lamp main body 11a Side surface 11b Inner side surface 11c Side surface 12 Support member 12a Horizontal part 12b Engagement part 13 Light source part 13a White LED
13b Blue LED
14 Diffusion cover 15 External cover 16 Opening part 19, 20 Engaged part 21, 22, 23 Groove part

Claims (7)

In an outdoor lighting fixture capable of simultaneously illuminating at least two colors of illumination light using an LED light source,
The one side surface is formed in a substantially U-shaped cross section with an opening formed on one side surface, and protrudes to a position near the edge of the opening on the inner surface facing the internal space of the opening. A first engaged portion that extends continuously in the longitudinal direction so as to be parallel to the first engaged portion, and protrudes at an inner side position than the first engaged portion, and the one side surface and the first engaged portion A long lamp body provided with a second engaged portion that extends continuously in the longitudinal direction so as to be parallel ;
A thin plate-like horizontal portion, a first engagement portion that protrudes in the horizontal direction from the lateral edge of the horizontal portion and extends continuously in the longitudinal direction, and a vertical direction from the lateral edge of the horizontal portion A long support member provided with a second engaging portion that is continuously extended in the longitudinal direction so as to be parallel to the horizontal portion and the first engaging portion at an end portion of the one portion protruding to When,
A light source unit provided with white LEDs arranged along the longitudinal direction of the lamp body and blue LEDs arranged continuously with the white LEDs on the surface of the support member;
An external cover disposed in a region covering the light source unit,
The support member is configured to close the opening by the horizontal portion and the first engagement portion in a state where the piece portion and the second engagement portion are accommodated in an internal space of the lamp body. One engaging portion is engaged with the first engaged portion from the outside direction of the opening, and the second engaging portion is engaged with the second engaged portion from the inside direction of the opening, An outdoor lighting fixture, which is attached to the lamp body .   The outdoor lighting fixture according to claim 1, further comprising a reflecting member having a reflecting surface facing the adjacent white LED and the blue LED at a boundary between the adjacent white LED and the blue LED.   The said light source part has the said white LED arranged along the longitudinal direction of the said lamp main body, The said blue LED is arranged in the free end part side position of the said lamp main body following the said white LED. Item 3. An outdoor lighting fixture according to Item 2.   4. The lamp body according to claim 1, wherein a groove portion for attaching an outer cover is formed on a side surface of the lamp body along a longitudinal direction, and the outer cover is attached with an edge portion in a short direction being engaged with the groove portion. The outdoor lighting fixture as described in any one.   The outdoor as described in any one of Claims 1 thru | or 4 which comprises the diffusion cover which is arrange | positioned at least in the irradiation area | region of the irradiation light of the said light source part, and diffuses the irradiation light irradiated from the said light source part. Lighting equipment.   The outdoor luminaire according to claim 5, wherein the diffusion cover is provided with a convex curved portion that covers the light source portion and a horizontal portion that extends in a horizontal direction from a lateral edge of the curved portion. 6. The lamp body is formed with a groove portion for attaching a diffusion cover along a longitudinal direction on a side surface thereof, and the diffusion cover is attached to the groove portion with a lateral edge screwed with a screw member.
Or the outdoor lighting fixture of Claim 6.

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