WO2013183205A1 - Instrument d'éclairage et unité d'instrument d'éclairage employant celui-ci - Google Patents

Instrument d'éclairage et unité d'instrument d'éclairage employant celui-ci Download PDF

Info

Publication number
WO2013183205A1
WO2013183205A1 PCT/JP2013/001826 JP2013001826W WO2013183205A1 WO 2013183205 A1 WO2013183205 A1 WO 2013183205A1 JP 2013001826 W JP2013001826 W JP 2013001826W WO 2013183205 A1 WO2013183205 A1 WO 2013183205A1
Authority
WO
WIPO (PCT)
Prior art keywords
lighting fixture
light source
lighting
led light
housing
Prior art date
Application number
PCT/JP2013/001826
Other languages
English (en)
Japanese (ja)
Inventor
織絵 中村
邦夫 武内
和正 東
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to JP2014519806A priority Critical patent/JPWO2013183205A1/ja
Publication of WO2013183205A1 publication Critical patent/WO2013183205A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0066—Reflectors for light sources specially adapted to cooperate with point like light sources; specially adapted to cooperate with light sources the shape of which is unspecified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/008—Suspending from a cable or suspension line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting fixture that controls irradiation from an LED light source and a lighting fixture unit using the same.
  • LEDs light-emitting diodes
  • the LED light source is a point light source and the light emitting surface is small
  • an illumination device that widens the light emitting surface by providing a reflector has been proposed (for example, Japanese Patent Application Publication No. 2010-153400).
  • the conventional lighting device has a reflector that refracts a flat plate into a U-shape, and a plurality of LED light emitting elements are installed at the peak of the reflector as a light source. With such a configuration, the above-described conventional lighting device can widen the light emitting surface and irradiate light over a wide range.
  • a very high output LED light source is used so that the emitted light can be seen from a distance.
  • such a high-power light source temporarily reduces the visual acuity of the driver when the driver of an aircraft passing over the vicinity of the bridge or a ship passing under the bridge looks directly.
  • a lighting device having a high-output light source when attached to a bridge, it may be required to irradiate in a specific direction. That is, for example, the vertical radiation angle of the light emitted from the lighting device is limited so as not to reduce the visual acuity of the driver of the aircraft or ship passing near the bridge.
  • the configuration of the conventional illumination device described above can be used, or the light emitting surface can be widened and the viewing angle widened by a lens.
  • the lens is enlarged and the manufacturing cost is increased.
  • the configuration of the conventional illumination device described above it is difficult to limit the vertical spread of the emitted light, and the light is diffused at a position close to the light source, so that the visibility from a long distance is lacking. There is a problem.
  • An object of the present invention is to provide a lighting fixture and a lighting fixture unit capable of irradiating light of an LED light source in a specific direction over a long distance.
  • the luminaire and the luminaire unit of the present invention are a luminaire that solves the above problems and a luminaire unit using the same.
  • the lighting fixture includes an LED light source, a housing that houses the LED light source, and a lighting control unit that is electrically connected to the LED light source and controls lighting of the LED light source.
  • the housing has a first surface, a second surface, a third surface, a fourth surface, and a fifth surface that face each other in the longitudinal direction of the housing.
  • the third surface connects the first surface and the second surface.
  • the fourth surface is connected to the third surface, and connects the first surface and the second surface.
  • the fifth surface is connected to the fourth surface, and connects the first surface and the second surface.
  • the housing has an opening, and the opening is surrounded by the first surface, the second surface, the third surface, and the fifth surface.
  • a reflective portion is provided on at least a part of the inner surface of the housing, that is, the inner surface having the first surface, the second surface, the third surface, the fourth surface, and the fifth surface.
  • This luminaire may be configured to reflect light from the LED light source in a specific direction at the reflecting portion when viewed from the longitudinal direction of the casing, and to radiate the light reflected by the reflecting portion to the outside from the opening.
  • This lighting apparatus may be installed on a structure that is fixed at a predetermined location so that the specific direction is along a direction that faces the outside from the structure in a horizontal plane.
  • the lighting apparatus may be installed in the structure such that the third surface is below the fifth surface.
  • the third surface is formed in a rectangular shape elongated in the longitudinal direction of the housing, and connects the first surface and the second surface in the longitudinal direction, and the fifth surface is connected to the third surface.
  • the opening may be connected to the fourth surface so as to face the fourth surface.
  • the LED light source may be installed on the third surface.
  • the fourth surface and the fifth surface are smoothly connected inside the housing, and the fourth surface and the fifth surface are the opening surface and the third surface of the opening. Any of these may have a common curved surface in which a line of intersection with a perpendicular surface is a parabola.
  • the reflection part may be provided on each of the first surface, the second surface, the fifth surface, the third surface, and the fourth surface inside the housing.
  • the fourth surface on the inner side of the housing has a curved surface in which a line of intersection with a surface perpendicular to both the opening surface of the opening and the third surface is a parabola, and the fifth surface is 3 may be provided in parallel with the surface.
  • the reflecting portion is provided on each of the first surface, the second surface, the third surface, and the fourth surface, and the fifth surface radiates from the LED light source.
  • a reflected light reducing unit that reduces reflection of light may be provided.
  • the focal point of the parabola may be located in the housing, and the LED light source may be provided at the focal point on the third surface.
  • the lighting fixture unit is a lighting fixture unit including a plurality of lighting fixtures.
  • Each of the plurality of lighting fixtures is the above-described lighting fixture, and the plurality of lighting fixtures are arranged in a direction orthogonal to the longitudinal direction of the housing, and are arranged so that the respective openings are opened in the same direction.
  • ⁇ Emission color of each lighting fixture can be changed independently.
  • the plurality of lighting fixtures may correspond to the plurality of colors on a one-to-one basis, and each of the plurality of lighting fixtures may include a light emission color changing panel that changes light emitted from the LED light source to a corresponding color.
  • the light of the LED light source can be irradiated over a long distance in a specific direction.
  • FIG. 3A is a side view of the lighting fixture unit 1 according to Embodiment 1
  • FIG. 3B is a front view of the lighting fixture unit 1.
  • FIG. 5 is a cross-sectional view taken along line AA of the lighting fixture 10 shown in FIG. 4.
  • 6A is a case where the first side surface and the second side surface are not provided in the lighting fixture 10 shown in FIG.
  • FIG. 6B is a diagram showing a radiation angle in a direction
  • FIG. 6B is a case where the first side surface and the second side surface are not provided in the lighting fixture 10 shown in FIG.
  • FIG. 9A is a diagram illustrating a radiation angle in the left-right direction of the lighting fixture 20 according to the second embodiment
  • FIG. 9B is a diagram illustrating a radiation angle in the vertical direction of the lighting fixture 20 according to the second embodiment.
  • Embodiment 1 (Embodiment 1)
  • the lighting fixture of Embodiment 1 and the lighting fixture unit using this lighting fixture are demonstrated using drawing.
  • FIG. 1 shows a bridge 2 in which the lighting fixture unit of the first embodiment is used.
  • the bridge 2 is a structure that is fixed at a predetermined place.
  • a girder 6 is supported by two main towers 3, a set of main cables 4, and a plurality of hanger ropes 5 hanging vertically from the main cables 4.
  • One set of main cables 4 is hung on the main tower 3 and located at both ends of the girders 6 in the short direction.
  • FIG. 2 is a partially enlarged view of a portion A of the bridge 2 shown in FIG.
  • the lighting fixture unit 1 is provided near the tip of the hanger rope 5.
  • Each of the plurality of hanger ropes 5 of the bridge 2 is provided with a lighting fixture unit 1.
  • the lighting fixture unit 1 is provided so as to emit light in the horizontal direction toward the outside of the bridge 2. That is, the luminaire unit 1 includes the bridge 2 so that the opening surface 171 (see FIG. 4) side of each luminaire 10 is the front, and the front of the luminaire unit 1 faces the outside of the bridge 2. Is provided.
  • FIG. 3A and 3B show the lighting fixture unit 1 according to Embodiment 1
  • FIG. 3A is a side view of the lighting fixture unit 1
  • FIG. 3B is a front view of the lighting fixture unit 1.
  • the lighting fixture unit 1 of the first embodiment has three lighting fixtures 10. Each of the lighting fixtures 10 is fixed to the main body of the lighting fixture unit 1 by an attachment base (not shown). Note that the number of lighting fixtures 10 provided in the lighting fixture unit 1 is not limited to three, and may be one or more.
  • the luminaire unit 1 is fixed to the hanger rope 5 by a mounting bracket 7 so as to emit light in the horizontal direction.
  • a plurality of lighting fixture units 1 are attached to the bridge 2 and used for purposes such as illumination.
  • a high-output light source is used for the lighting fixture unit 1 so that the light emitted from the lighting fixture unit 1 can be visually recognized even from a distance.
  • the light source when an LED is used as the light source, it is difficult to ensure visibility from a long distance by direct viewing because the light emitting surface is small. In addition, the viewing angle is narrow because the emission direction from the light source is limited.
  • Such a high-output light source temporarily reduces the visual acuity of the driver when the driver of an aircraft passing over the vicinity of the bridge 2 or a ship passing under the bridge 2 looks directly.
  • the vertical radiation angle of light is limited. That is, the light emitted from the lighting fixture unit 1 in the vertical direction is limited. Therefore, the luminaire unit 1 is installed on the bridge 2 so as to radiate light substantially forward.
  • “front” refers to a direction in which the luminaire unit 1 emits light when the luminaire unit 1 is provided on the bridge 2, and in the first embodiment, refers to a substantially horizontal direction.
  • FIG. 4 is a perspective view of the lighting apparatus 10 according to the first embodiment.
  • the luminaire 10 includes an LED light source 11, a housing 12 that houses the LED light source 11, and a lighting control unit (control unit) 9 that is electrically connected to the LED light source 11 and controls lighting of the LED light source 11 (see FIG. 3A).
  • the housing 12 includes a first side surface (first surface) 13 and a second side surface (second surface) 14 that face each other in the longitudinal direction (first direction) of the housing 12, and a lower surface (first surface). 3 surface) 15, an upper surface (fifth surface) 16, and a back surface (fourth surface) 19.
  • the lower surface 15 connects the first side surface 13 and the second side surface 14.
  • the back surface 19 is connected to the lower surface 15, and connects the first side surface 13 and the second side surface 14.
  • the upper surface 16 is connected to the rear surface 19 and connects the first side surface 13 and the second side surface 14.
  • the upper surface 16 and the rear surface 19 are smoothly connected and integrally provided.
  • the upper surface 16 is connected to the rear surface 19 so as to face the lower surface 15.
  • the housing 12 has an opening 17, and the opening 17 is surrounded by the first side surface 13, the second side surface 14, the lower surface 15, and the upper surface 16.
  • the opening 17 faces the back surface 19.
  • the housing 12 is formed such that the direction in which the first side surface 13 and the second side surface 14 face each other is the longitudinal direction (first direction).
  • the lower surface 15 is formed in a plane, and the LED light source 11 is provided on the lower surface 15.
  • the lower surface 15 is formed in a rectangular shape elongated in the longitudinal direction of the housing 12 and connects the first side surface 13 and the second side surface 14 in the longitudinal direction.
  • Reflecting portions 18 are provided on the inner side surface of the housing 12 (the surface inside the housing 12), that is, the first side surface 13, the second side surface 14, the lower surface 15, the upper surface 16, and the rear surface 19. Yes.
  • the reflector 18 reflects the incident light specularly by, for example, mirror finishing.
  • the light emitting surface of the luminaire 10 can be widened and light can be emitted in a specific direction, so that visibility from a long distance can be ensured. Further, since the light emitting surface is widened by using the reflecting portion 18 instead of the lens, it can be manufactured at a lower cost than the case of using the lens.
  • the three lighting fixtures 10 are arranged in a direction (second direction) orthogonal to the longitudinal direction (first direction).
  • a direction orthogonal to both the first direction and the second direction is defined as a third direction.
  • each opening part 17 of the three lighting fixtures 10 is arrange
  • the direction where the opening part 17 of the three lighting fixtures 10 opens is a direction along the third direction.
  • the direction in which the openings 17 of the three lighting fixtures 10 are opened is preferably the third direction.
  • the luminaire unit 1 in which the three luminaires 10 are arranged is installed on the bridge 2 so that a specific direction in which light is emitted follows a direction from the bridge 2 toward the outside in a horizontal plane. Further, the lighting fixture unit 1 is installed on the bridge 2 so that the lower surface 15 of each lighting fixture 10 is located below the upper surface 16.
  • FIG. 5 is a cross-sectional view taken along line AA of the luminaire 10 shown in FIG.
  • the upper surface 16 and the back 19 inside the housing 12 is smoothly connected, and intersection line between to both vertical surface of the opening face 171 and the lower surface 15 of the opening 17 is parabolic Have a common curved surface. That is, the upper surface 16 and the back surface 19 have a common curved surface whose intersection line with a surface having a normal line in the longitudinal direction (first direction) is a parabola.
  • Each of the upper surface 16 and the rear surface 19 is formed with curved surfaces so that the parabola is focused on the inside of the housing 12.
  • the reflecting portion 18 is provided on the upper surface 16 and the back surface 19.
  • the LED light source 11 is preferably located at the parabolic focus of the top surface 16 and the back surface 19. Since the LED light source 11 emits light radially, the lighting fixture 10 can emit light emitted from the LED light source 11 in a certain direction by installing the LED light source 11 at the focal point of the parabola on the upper surface 16 and the rear surface 19. . That is, the light beam 40 emitted from the LED light source 11 is reflected by the curved surfaces of the upper surface 16 and the rear surface 19 and travels forward. In other words, the luminaire 10 reflects light from the LED light source 11 in a specific direction at the reflecting portion 18 when viewed from the longitudinal direction (first direction) of the housing 12.
  • the lighting fixture 10 radiates
  • the light emitted from the LED light source 11 is reflected in a specific direction, so that the light of the lighting fixture 10 can be visually recognized even from a long distance. That is, a person who wants to see the illumination by the light of the lighting fixture 10 can visually recognize the light of the lighting fixture 10 even from a long distance.
  • the driver of an aircraft or a ship can visually recognize the light of the lighting fixture 10 without directly viewing the light of the lighting fixture 10.
  • the reflection portion 18 is provided on the entire inner surface (inner surface) of the housing 12. As a result, the light emitted from the LED light source 11 can be efficiently reflected forward (in the direction of arrow B in FIG. 5).
  • the reflection portion 18 may be provided on a part of the inner surface (inner surface) of the housing 12. That is, the reflecting portion 18 may be provided on at least a part of each of the first side surface 13, the second side surface 14, the lower surface 15, the upper surface 16, and the back surface 19.
  • the brightness of the luminaire 10 can be adjusted by adjusting the range in which the reflecting portion 18 is provided on the inner surface (inner surface) of the housing 12.
  • a high-power white LED element is used as the LED light source 11.
  • a light emission color changing panel 21 is provided in the opening 17 of the housing 12 so as to cover the opening 17.
  • Each of the three lighting fixtures 10 provided in the lighting fixture unit 1 is provided with a light emission color changing panel 21 of a different color.
  • an aviation warning light 8 that emits red light is installed in the vicinity of the luminaire unit 1 to pay attention to the position of the bridge 2 for an aircraft passing in the vicinity of the bridge 2. Therefore, for example, the three lighting fixtures 10 of the lighting fixture unit 1 are provided with the light emission color changing panels 21 so as to emit green, blue, and white, respectively.
  • a color can be changed easily.
  • a white LED element can be used in common with all the LED light sources 11, when providing the several lighting fixture unit 1 in the bridge 2 whole, it can manufacture or procure more cheaply.
  • each lighting fixture 10 has a one-to-one correspondence with the plurality of colors, and each lighting fixture 10 includes a light emission color change panel 21 that changes the light emitted from the LED light source 11 to the corresponding color. Yes.
  • the LED light source 11 installed in the three lighting fixtures 10 of the lighting fixture unit 1 may be LED elements that emit different colors.
  • the lighting controller 9 (see FIG. 3A) can adjust the color of the LED light source 11 to realize different colors. In this case, the emission color changing panel 21 is not necessary.
  • the luminaire unit 1 is capable of different colors and can provide various lighting patterns when used as illumination.
  • the luminaire unit 1 When the luminaire unit 1 is provided for illumination of a bridge, in order to prevent a ship or aircraft driver passing nearby from directly viewing the light radiated from the luminaire 10, the emission angle in the vertical direction is Limited. However, in order to ensure the visibility from a long distance, it is required to widen the light emitting surface. Therefore, the luminaire 10 increases the length of the housing 12 in the left-right direction (first direction) in order to narrow the emission angle in the vertical direction (second direction) and widen the light emitting surface. It is possible to have a light emitting surface sufficient to ensure visibility from a long distance.
  • FIG. 6A and 6B show the left and right when the length in the left-right direction of the lighting fixture 10 is changed when the first side face 13 and the second side face 14 are not provided in the lighting fixture 10 shown in FIG. It represents the radiation angle of the luminaire 10 in the direction.
  • FIG. 6A is a diagram showing the radiation angle when the length in the left-right direction is 100 cm
  • FIG. 6B is a diagram showing the radiation angle when the length in the left-right direction is 300 cm.
  • the longer the horizontal length of the lighting fixture 10 the wider the radiation angle in the horizontal direction. That is, when the front direction of the lighting fixture 10 and 0 °, in the range of ⁇ 30 ° of ⁇ 60 °, wider range of radiation shown in Figure 6B than the range of the emitted light shown in FIG. 6A ing.
  • the lighting fixture unit 1 since the lighting fixture unit 1 receives strong wind on the bridge 2, it is preferable that the volume is as small as possible (FIG. 1). Therefore, it is desirable to reduce the size of each of the three lighting fixtures 10 constituting the lighting fixture unit 1 while ensuring a desired radiation angle in the left-right direction.
  • the lighting fixture 10 of Embodiment 1 has a first side surface 13 and a second side surface 14 in the longitudinal direction of the housing 12, and a reflecting portion 18 is provided on each surface located inside the housing 12. Yes. With such a configuration, it is possible to obtain a wider radiation angle in the left-right direction than in the case where the left-right direction of the housing 12 has the same length and the first side surface 13 and the second side surface 14 are not provided. .
  • FIG. 7 is a diagram illustrating a radiation angle in the left-right direction when the length in the left-right direction of the lighting fixture 10 of the first embodiment is 150 cm. As can be seen from FIG. 7, by providing the housing 12 with the first side surface 13 and the second side surface 14, the length of the housing 12 shown in FIG.
  • the first side surface 13 and the second side surface 14 can be realized in the left-right direction as much as the radiation angle. That is, in the range of ⁇ 30 ° to ⁇ 60 °, the range of the emitted light shown in FIG. 7 is wider than the range of the emitted light shown in FIG. 6A.
  • the light emitted from the LED light source 11 is in the longitudinal direction of the housing 12, that is, the arrows C 1 and C 2 shown in FIG.
  • the light emitted from the LED light source 11 leaks in the direction of approximately ⁇ 90 ° shown in FIG. 6A, so that the front direction (approximately ⁇ 60 ° to + 60 ° of the light emitted from the LED light source 11) leaks.
  • the contribution to (range) is reduced.
  • first side surface 13 and the second side surface 14 are further provided in addition to the lower surface 15, the rear surface 19, and the upper surface 16, for example, light emitted in the direction of approximately ⁇ 90 ° shown in FIG. 6A is reflected.
  • the contribution of the light emitted from the LED light source 11 in the front direction (approximately in the range of ⁇ 60 ° to + 60 °) can be increased.
  • the first side surface 13 and the second side surface 14 are provided in the longitudinal direction of the housing 12 of the lighting fixture 10, and the reflecting portions 18 are provided on the surfaces positioned inside the housing 12.
  • the reflecting portions 18 are provided on the surfaces positioned inside the housing 12.
  • first side surface 13 and the second side surface 14 are flat surfaces, but are not limited to flat surfaces.
  • first side surface 13 and the second side surface 14 may be curved surfaces.
  • Embodiment 2 Hereinafter, the lighting fixture of Embodiment 2 is demonstrated using drawing.
  • FIG. 8 is a perspective view of the lighting apparatus 20 according to the second embodiment.
  • the luminaire 20 includes an LED light source 11, a housing 22 that houses the LED light source 11, and a lighting control unit 9 (see FIG. 3A) that is electrically connected to the LED light source 11 and controls lighting of the LED light source 11.
  • the housing 22 includes a first side surface (first surface) 23 and a second side surface (second surface) 24, a lower surface (third surface) 25, and an upper surface (fifth surface) 26 that face each other. And a back surface (fourth surface) 29.
  • the lower surface 25 connects the first side surface 23 and the second side surface 24.
  • the back surface 29 is connected to the lower surface 25, and connects the first side surface 23 and the second side surface 24.
  • the upper surface 26 is connected to the rear surface 29, and connects the first side surface 23 and the second side surface 24.
  • the lower surface 25 and the upper surface 26 connect the first side surface 23 and the second side surface 24, respectively.
  • the housing 22 has an opening 27, and the opening 27 is surrounded by a first side surface 23, a second side surface 24, a lower surface 25, and an upper surface 26.
  • the housing 22 is formed such that the direction in which the first side surface 23 and the second side surface 24 face each other is the longitudinal direction (first direction).
  • the lower surface 25 is formed in a plane, and the LED light source 11 is provided on the lower surface 25.
  • the lower surface 25 is formed in a rectangular shape elongated in the longitudinal direction of the housing 22 and connects the first side surface 23 and the second side surface 24 in the longitudinal direction.
  • the back surface 29 has a curved surface in which a line of intersection with a surface perpendicular to both the opening surface 271 and the bottom surface 25 of the opening 27 is a parabola. That is, the back surface 29 has a common curved surface in which a line of intersection with a surface having a normal line in the longitudinal direction (first direction) is a parabola.
  • the upper surface 26 is provided in parallel with the lower surface 25.
  • the lighting fixture 20 can also be used for the lighting fixture unit 1 of the first embodiment.
  • the lighting fixture 10 of the first embodiment when a white light emitting element is used for the LED light source 11 of the lighting fixture 20, as shown in FIG. 3A, the emission color changing panel 21 is opened. By providing in 27, the luminescent color of the lighting fixture 20 can be changed. Further, when RGB light emitting elements are used for the LED light sources 11 of the lighting fixture 20, the light emission color is changed by adjusting the lighting control unit 9 electrically connected to each LED light source 11. be able to.
  • the same effect can be obtained by applying the configuration described in the first embodiment to the lighting apparatus 20 of the second embodiment. Also in the lighting fixture 20 of Embodiment 2, it is desirable to install the LED light source 11 at the focal point of a parabola that is a line of intersection between the back surface 29 and the opening surface 271 and the surface perpendicular to the bottom surface 25 of the opening 27. By doing in this way, the lighting fixture 20 can irradiate the light of the LED light source 11 to a front direction more efficiently.
  • the luminaire unit 1 when used for the bridge 2, the luminaire 20 emits light in the horizontal direction, and a ship or aircraft driver passing nearby does not look directly at the light source. It is required to have a configuration.
  • the lighting fixture 20 of Embodiment 2 has an upper surface 26 parallel to the lower surface 25 in order to make it difficult to directly view the light source from the outside. By providing the lighting device 20 with the upper surface 26, for example, a person passing near the light source can be prevented from directly viewing the LED light source 11 from above.
  • the first side surface 23, the second side surface 24, the lower surface 25, and the back surface 29 are provided with reflecting portions 28, respectively.
  • the reflecting portion 28 is provided on each of the first side surface 23, the second side surface 24, the lower surface 25, and the back surface 29.
  • the reflected light reduction unit 30 is provided on the upper surface 26. Since the upper surface 26 is provided in parallel with the lower surface 25, if a reflective portion is provided on the upper surface 26, the light reflected by the upper surface 26 is reflected downward rather than forward rather than forward. As described above, in the luminaire used for the bridge, since the radiation angle in the vertical direction is limited, it is desirable that the downward reflection is reduced. Therefore, in the lighting fixture 20 of Embodiment 2, by providing the reflected light reducing unit 30 on the upper surface 26, it is possible to prevent light from being reflected downward from the upper surface 26 side.
  • the reflected light reduction unit 30 is formed, for example, by roughening the upper surface 26 located inside the housing 22 and can reduce reflection in one direction by irregularly reflecting incident light. Further, for example, by applying a light-absorbing material such as black paint as the reflected light reducing unit 30 to the upper surface 26 located inside the housing 22, reflection of light from the upper surface 26 side downward can be reduced. Thus, by providing the upper surface 26 having the reflected light reduction unit 30 on the inner side of the housing 22, it is possible to prevent direct view from above and reduce downward reflection.
  • FIG. 9A, 9B is a diagram showing a radiation angle of the lighting fixture 20 of the second embodiment
  • FIG. 9A represents a radiation angle in the lateral direction of the lighting fixture 20
  • Fig. 9B is a radiation angle in the vertical direction of the lighting fixture 20 Represents.
  • the left-right direction of the lighting fixture 20 is the longitudinal direction (first direction) of the housing 22, and the lighting fixture unit 1 is installed so that the left-right direction of the lighting fixture 20 is the horizontal direction.
  • the vertical direction of the lighting fixture 20 is the normal direction (second direction) of the lower surface 25, and the lighting fixture unit 1 is installed so that the vertical direction of the lighting fixture 20 is the vertical direction.
  • the radiation angle in the vertical direction is significantly limited as compared with the radiation angle in the horizontal direction.
  • the lighting fixture 20 has the upper surface 26 provided in parallel with the lower surface 25 and formed with the reflected light reduction unit 30, thereby reducing the vertical emission angle. It is possible to prevent direct view from above.
  • each of the LED light sources 11 provided in the lighting fixtures 10 and 20 is one light emitting element, but is not limited thereto.
  • the LED light source 11 may be configured using a plurality of light emitting elements.
  • the LED light source 11 is provided in the lower surface 15 or the lower surface 25, it is not restricted to this structure.
  • the LED light source 11 may be installed on the lower surface 15 or the lower surface 25 via an installation base for providing the LED light source 11.
  • the LED light source 11 is located at the focal point of a parabola that is an intersection line between the curved surface of the back surface 19 and the upper surface 16 and the surfaces perpendicular to the opening surface 171 and the lower surface 15 of the opening 17. .
  • the LED light source 11 is preferably located at the focal point of a parabola that is an intersection line between the curved surface of the back surface 29 and the surfaces perpendicular to the opening surface 271 and the lower surface 25 of the opening 27.
  • the up-down direction (second direction) and the left-right direction (first direction) refer to relative directions in the lighting fixture unit 1 and the lighting fixtures 10, 20, and are referred to as the horizontal direction.
  • the vertical direction means an absolute direction.
  • the lighting fixtures 10 and 20 have the first surface as the first side surface, the second surface as the second side surface, the third surface on which the LED light source 11 is installed as the lower surface, and the fourth surface.
  • the arrangement of the lighting fixtures 10 and 20 is not limited to this.
  • the luminaires 10 and 20 may be arranged such that the third surface on which the LED light source 11 is installed is an upper surface and the fifth surface is a lower surface.
  • the lighting fixture of the present invention can irradiate the light of the LED light source over a long distance in a specific direction, and can further reduce the vertical emission angle of the light emitted from the lighting fixture. Therefore, it can be used for illumination of buildings such as bridges or towers, or for lighting up.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un instrument d'éclairage qui comprend une source de lumière à diode électroluminescente (DEL), un corps de boîtier qui reçoit la source de lumière à DEL, et une unité de commande d'éclairage qui est connectée électriquement à la source de lumière à DEL et qui effectue une commande d'éclairage de la source de lumière à DEL. Le corps de boîtier comprend en outre une première face et une deuxième face qui sont opposées l'une à l'autre, et une troisième face, une quatrième face et une cinquième face en tant que faces intérieures. Le corps de boîtier comprend en outre une partie d'ouverture. La partie d'ouverture est entourée par la première face, la deuxième face, la troisième face et la cinquième face, et est opposée à la quatrième face. Le corps de boîtier est formé d'une manière telle que la direction dans laquelle la première face et la deuxième face sont opposées l'une à l'autre est la direction longitudinale. Une partie de réflexion est disposée dans au moins une partie de la face intérieure du corps de boîtier.
PCT/JP2013/001826 2012-06-06 2013-03-18 Instrument d'éclairage et unité d'instrument d'éclairage employant celui-ci WO2013183205A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014519806A JPWO2013183205A1 (ja) 2012-06-06 2013-03-18 照明器具ユニット

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012128568 2012-06-06
JP2012-128568 2012-06-06

Publications (1)

Publication Number Publication Date
WO2013183205A1 true WO2013183205A1 (fr) 2013-12-12

Family

ID=49711616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/001826 WO2013183205A1 (fr) 2012-06-06 2013-03-18 Instrument d'éclairage et unité d'instrument d'éclairage employant celui-ci

Country Status (3)

Country Link
JP (1) JPWO2013183205A1 (fr)
TW (1) TW201411045A (fr)
WO (1) WO2013183205A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016119204A (ja) * 2014-12-19 2016-06-30 パナソニックＩｐマネジメント株式会社 投光器
JP2020087508A (ja) * 2018-11-15 2020-06-04 株式会社青井黒板製作所 ボード照明装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09213107A (ja) * 1996-01-30 1997-08-15 Matsushita Electric Works Ltd 道路灯
JP2007300138A (ja) * 2003-12-05 2007-11-15 Mitsubishi Electric Corp 発光装置及びこれを用いた照明器具
JP2011142019A (ja) * 2010-01-07 2011-07-21 Panasonic Electric Works Co Ltd 照明器具
JP2011170990A (ja) * 2010-02-16 2011-09-01 Panasonic Electric Works Co Ltd 照明器具
JP2011233269A (ja) * 2010-04-23 2011-11-17 Panasonic Electric Works Co Ltd 照明装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10241445A (ja) * 1997-02-28 1998-09-11 Toshiba Lighting & Technol Corp 橋梁用イルミネーション器具
JP2009054558A (ja) * 2007-08-28 2009-03-12 Kazuo Saito 光学光源体橋梁燈

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09213107A (ja) * 1996-01-30 1997-08-15 Matsushita Electric Works Ltd 道路灯
JP2007300138A (ja) * 2003-12-05 2007-11-15 Mitsubishi Electric Corp 発光装置及びこれを用いた照明器具
JP2011142019A (ja) * 2010-01-07 2011-07-21 Panasonic Electric Works Co Ltd 照明器具
JP2011170990A (ja) * 2010-02-16 2011-09-01 Panasonic Electric Works Co Ltd 照明器具
JP2011233269A (ja) * 2010-04-23 2011-11-17 Panasonic Electric Works Co Ltd 照明装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016119204A (ja) * 2014-12-19 2016-06-30 パナソニックＩｐマネジメント株式会社 投光器
JP2020087508A (ja) * 2018-11-15 2020-06-04 株式会社青井黒板製作所 ボード照明装置
JP7237300B2 (ja) 2018-11-15 2023-03-13 株式会社青井黒板製作所 ボード照明装置

Also Published As

Publication number Publication date
JPWO2013183205A1 (ja) 2016-01-28
TW201411045A (zh) 2014-03-16

Similar Documents

Publication Publication Date Title
EP2375137B1 (fr) Module d'éclairage et appareil d'éclairage l'incluant
JP2009266780A (ja) 発光体および照明器具
JP2008300203A (ja) 照明器具
WO2011111622A1 (fr) Appareil d'éclairage
JP6746397B2 (ja) 車両用灯具
JP2018010755A (ja) 照明装置
JP3196241U (ja) 車両用ライト
JP2008078015A (ja) 照明器具
JP2015103323A (ja) 照明装置
JP6624550B2 (ja) 照明器具
US10732342B2 (en) Indirect luminaire
US9188294B1 (en) LED-based optically indirect recessed luminaire
JP5732613B2 (ja) 照明器具
JP6518893B2 (ja) 配光分散制御型ｌｅｄ照明装置
WO2013183205A1 (fr) Instrument d'éclairage et unité d'instrument d'éclairage employant celui-ci
JP3211553U (ja) 照明装置
US9945533B1 (en) Uniform lens illumination in downlight fixtures
JP2011204699A (ja) 照明装置
CN111396786A (zh) 一种照明模组及灯具
US20160097517A1 (en) Pendant luminaire
JP6178796B2 (ja) 照明装置、及び該照明装置を備えた道路照明器具
JP2010146806A (ja) 照明器具
JP5723985B2 (ja) 特に道路照明のための最適化放射を備えた照明モジュール
CN211716360U (zh) 一种照明模组及灯具
JP5547003B2 (ja) 投光器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13801190

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2014519806

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13801190

Country of ref document: EP

Kind code of ref document: A1