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EP2039985B1 - Dispositif d'éclairage DEL doté d'une répartition asymétrique de la lumière, en particulier pour éclairages publics - Google Patents

Dispositif d'éclairage DEL doté d'une répartition asymétrique de la lumière, en particulier pour éclairages publics Download PDF

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Publication number
EP2039985B1
EP2039985B1 EP08016580.6A EP08016580A EP2039985B1 EP 2039985 B1 EP2039985 B1 EP 2039985B1 EP 08016580 A EP08016580 A EP 08016580A EP 2039985 B1 EP2039985 B1 EP 2039985B1
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EP
European Patent Office
Prior art keywords
light
led
main
conducting body
relation
Prior art date
Legal status (The legal status 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 status listed.)
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Application number
EP08016580.6A
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German (de)
English (en)
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EP2039985A2 (fr
EP2039985A3 (fr
Inventor
Michael Härtl
Stephan Lukanow
Janusz Teklak
Clemens Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram SBT GmbH
Original Assignee
Siteco Beleuchtungstechnik GmbH
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Publication of EP2039985A2 publication Critical patent/EP2039985A2/fr
Publication of EP2039985A3 publication Critical patent/EP2039985A3/fr
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Publication of EP2039985B1 publication Critical patent/EP2039985B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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 invention relates to the field of illumination devices whose light source is formed by a light emitting diode, short LED, and in particular an LED illumination device with an asymmetrical light distribution curve.
  • An illumination system with an LED element and a lighting lens in the form of a lens is in the DE 101 58 395 A1 disclosed.
  • the lens is provided according to this document provided with asymmetrical curved entrance and exit surfaces. The light emitted by the LED element is deflected asymmetrically with respect to the main emission direction of the LED element in order to illuminate a curved surface as evenly as possible.
  • a light guide element which has a light exit surface and a reflector surface opposite the first longitudinal side on a first longitudinal side, is provided to deflect light of an LED laterally in a direction toward the main emission direction of the LED.
  • light radiation is partially coupled out directly through the light exit surface and partially deflected beforehand by total reflection.
  • the object of the invention is to provide an LED lighting device which is also suitable for complex lighting tasks.
  • the invention provides a street lamp with a plurality of LED lighting devices, each comprising at least one LED with respect to a main emission of the LED preferably rotationally symmetric light output and a light guide body, which is formed of a light guide and has at least one light exit surface, wherein light of the LED in the Lichtlenkraj is coupled and at least a portion of the light is deflected in the light guide body that it leaves the light guide body through the light exit surface with a light distribution which is asymmetrical with respect to the main emission of the LED, the light distribution in a sectional plane in which the main emission of the LED and which intersects the light exit surface, a light distribution curve defined, which has a main maximum and at least one secondary maximum, wherein the main maximum is asymmetrical with respect to the main emission direction of the LED.
  • the light-guiding bodies are, for example, a full-thickness conductor which is formed entirely from a transparent material.
  • a hollow light guide is possible.
  • the fiber optic conductor is for example made of a transparent Material such as glass or plastic, eg PMMA, PU or PC, formed.
  • the light steering in the light-guiding body is effected by refraction and / or by reflection.
  • interfaces may also be mirrored to produce a reflection.
  • a main maximum of the light distribution curve is arranged asymmetrically with respect to the main emission direction of the LED.
  • the main maximum produces the necessary luminance (measured in cd / m 2 ) or illuminance (measured in lx) on a surface to be illuminated, while the secondary maximum is directed to other spatial areas to improve the uniformity of the luminance or illuminance.
  • the LED lighting devices for a given lighting task can be set individually by aligning, with the alignment being able to take place by rotating the LED lighting device in the axis of the main emission direction of the LED.
  • the secondary maximum serves to even out the luminance in the spatial regions that are not reached by the main maximum of the luminous intensity distribution. It can be generated by the at least one secondary maximum and light accents independent of the main maximum of the light distribution curve. In a simplified embodiment of the LED illumination device, no secondary maximum is provided in the light distribution curve.
  • the main maximum lies in the sectional plane in which the axis of the main emission direction of the LED is perpendicular and which intersects the light exit window perpendicular to the LED main emission direction in an angle range between 45 ° and 80 °, preferably between 55 ° and 75 °.
  • the secondary maximum is preferably in the cutting plane with respect to the LED main emission direction in an angle range between -30 ° and 30 °, particularly preferably between -20 ° and 20 °.
  • the main maximum is arranged asymmetrically, it is preferred that the sub-maximum be at a small angle to the LED main emission direction or be approximately symmetrical to the LED main emission direction. This arrangement has the advantage that when turning the LED lighting device to the main emission of the LED, the main maximum individual can be steered in one direction, while the secondary maximum remains in approximately the same solid angle range regardless of the orientation of the main maximum.
  • the light-guiding body has a plurality of light exit surfaces, wherein according to a preferred embodiment one or more light exit surfaces are assigned to either the main maximum or a secondary maximum.
  • a light exit surface may output a narrowly focused bundle of light rays, while the second light exit surface may output a divergent bundle of light rays.
  • a desired location can be spot-illuminated with the main maximum, and the adjacent surroundings can be lightened with the divergent bundle of light beams.
  • the light-guiding body has one or more surfaces which are arranged opposite the LED so that a part of the light of the LED is totally reflected thereon.
  • the interfaces where the light is totally reflected can be either flat or curved. Due to the curvature, the corresponding light bundle, which is totally reflected at this interface, either expanded or bundled.
  • the surfaces of the light-guiding body, on which light radiation is reflected may also be mirrored. The mirrored surfaces may also be concave or convex in order to widen or focus the light beam.
  • the light-guiding body has one or more light entry surfaces through which the light from the LED is coupled into the light-guiding body.
  • the LED can also be integrated in the light-guiding body.
  • the plurality of light entry surfaces have the advantage that the incident light in the Lichtlenkgroper can be divided into several bundles, which are forwarded in the light guide body in different directions.
  • the light entry surfaces may also be curved in order to receive the corresponding beam when the light enters the light guide body focus or widen. In the case of a convexly curved light entry surface, the light bundle focuses on the light beam at the light entry surface, while the corresponding bundle is widened in the case of a concave light entry surface.
  • one or more light entry surfaces are arranged rotationally symmetrical about the LED main emission direction.
  • the direction of the main and secondary maximum can be adjusted around the main emission direction of the LED, without the LED having to be moved with the light guide body.
  • the light entry surface may at least partially extend parallel to the light exit surface.
  • the light of the LED when coupled into the light-guiding body is divided by a plurality of light entry surfaces into at least two, preferably three, light bundles. These light beams can then be directed independently of each other either towards the main maximum or to one of the secondary maxima.
  • the light bundles can be bundled or expanded independently of each other in the light guide body either directly on entry through one of the light entry surfaces, the light through a concave or convex curved light exit surface or total internal reflection within the light guide body at a concave or convex interfaces.
  • a plurality of light-guiding bundles can also be directed in the direction of the main maximum and / or one or more light bundles can be directed to the secondary maximum.
  • At least one light exit surface extends in a straight line in a direction perpendicular to the said sectional plane.
  • the light distribution of the light bundles emerging through the light exit surface is mirror-symmetrical formed with respect to a plane which is perpendicular to the rectilinear longitudinal extent of the light exit surface and the axis of the main emission of the LED contains.
  • a plurality of non-parallel sides may also be provided on the light-guiding body, on each of which at least one light-emitting surface is arranged.
  • a rectangular or an approximately square basic shape of the light guide body can be in four directions with an azimuthal angle of 0 °, 90 °, 180 ° or 270 ° relative to the main LED emission direction Maximas in the light distribution curve, i. either main or secondary maxima.
  • the asymmetry of the main maximum with respect to the main LED emission direction is nevertheless retained.
  • the LED lighting devices described above are used in street lights.
  • the main maximum in the light distribution curve is used to illuminate the roadway, while the sub-maximum improves the uniformity of the light distribution on the evaluation area.
  • the invention relates to a street lamp with a board, on which a plurality of LED lighting devices are installed, wherein each of the LED lighting devices comprises at least one LED with respect to a main direction of the LED rotationally symmetrical light output and a light guide body, which consists of a light guide is formed and has at least one light exit surface, wherein light of the LED is coupled in the light guide body and the light guide body deflects at least a portion of the light so that it leaves the light guide body through a light exit surface with a light distribution which is asymmetrical with respect to the main emission of the LED, and the light distribution in a sectional plane in which the main emission direction of the LED lies and intersects the light entry surface defines a light distribution having a main maximum that is asymmetrical with respect to the main emission direction of the L.
  • ED is.
  • the luminaire comprises a plurality of identical LED lighting devices according to embodiments as described above.
  • LED lighting devices with asymmetrical main maximum allows to set up the light for the desired lighting task in an advantageous manner.
  • street lights which are to illuminate an elongated portion of a road, the following preferred embodiments are provided.
  • the luminaire comprises a plurality of groups of LED lighting devices whose main maxima each have the same spatial orientation with respect to their LED main emission direction.
  • the orientation of two groups is arranged mirror-symmetrically with respect to a plane that intersects the board vertically.
  • this corresponds to the vertical plane of the luminaire transversely to the roadway longitudinal extent.
  • a first and a second group of LED lighting devices of the luminaire is provided, whose main maxima each have an azimuthal angle with respect to the LED main emission direction, which are aligned opposite to one another.
  • This embodiment of a luminaire generates a light distribution on the illuminated surface, such as the roadway, which extends symmetrically to both sides of the lamp.
  • a third and a fourth group of LED lighting devices is provided in the luminaire whose main maxima form an angle between 5 ° and 30 ° or between -5 ° and -30 ° with respect to the first and second group.
  • a Lichtbandknickung is generated, which is particularly advantageous for street lights, which are not centrally located above the road, but at the edge of the road. Due to the Lichtbandknickung despite the arrangement on the edge of the road, the width of the belt is largely uniformly illuminated.
  • further groups of LED lighting devices are provided which are symmetrical with respect to the plane perpendicular to the board, i. the vertical plane of the lamp, are arranged.
  • the LED lighting devices can also be provided variably positionable in the lamp.
  • the LED lighting device has an LED 1, which is arranged in a recess 2 of a light-guiding body 3.
  • the light-guiding body is in the illustrated embodiment a full-thickness conductor, which is formed throughout from a transparent plastic (PMMA).
  • the light-guiding body 3 has a longitudinal extent (in the image plane of FIG. 2 the horizontal), wherein the recess 2 extends laterally of the LED 1 substantially in the longitudinal direction of the light-guiding body 3.
  • the recess 2 is cut out on one longitudinal side and formed partially circular on the opposite longitudinal side.
  • the recess 2 in the light guide body 3 forms a total of three light entry surfaces 5, 6 and 7, which surround the LED 1.
  • the light entrance surface 5 opposite the LED in its main emission direction is curved convexly, while the side of the LED 1 arranged light entry surfaces 6 and 7 are in a sectional plane in which the main emission of the LED is straight.
  • the section plane corresponds to the image plane of FIGS. 1 and 3
  • the LED main emission direction corresponds to the vertical in the FIGS. 1 and 3 ,
  • the light emanating from the LED 1 passes through the light entry surfaces 5, 6 and 7 in the light guide body 3 and is thereby divided into three beams 8, 9 and 10.
  • the bundle of rays 9, which enters the light-guiding body 3 along the main emission direction of the LED 1 through the light entry surface 5, is slightly focused due to a convex curvature of the light entry surface 5 when light enters through light refraction.
  • the beam 9 In the further course of the beam 9 impinges on an interface 11 of the light-guiding body 3, which is arranged so that the beam 9 is totally reflected.
  • the interface 11 is also curved slightly convex, whereby the beam 9 is further focused.
  • the beam 9 leaves the light-guiding body through a light exit surface 12.
  • the light exit surface 12 is flat.
  • the bundle of rays 9, which leaves the light-guiding body somewhat focused, forms a main maximum 13 in the light-intensity distribution.
  • the main maximum 13 is in an angular range between 45 ° and 70 ° relative to the main emission direction of the LED.
  • the polar representation of the light intensity distribution is in FIG. 4 shown.
  • the 0 ° vertical in the FIG. 4 schematically corresponds to the main emission of the LED. 1
  • Another light beam 8 enters from the LED 1 through the light entrance surface 6 in the light guide body and leaves without further reflection the light guide body 3 by a flat light exit surface 14 which is arranged at a distance from the light exit surface 12 on the same side of the light guide body.
  • the beam 8 After the refraction at the light entry surface 6 and the light exit surface 14, the beam 8 has a direction which likewise corresponds to the angle range of the main maximum 13. In contrast to the beam 9, however, the beam 8 is widened more. In the light intensity distribution, the beam 8 ensures a widening of the main maximum 13.
  • the light beam 8 is formed approximately by the proportion of the light of the LED 1, which leaves the LED in the direction of the main maximum anyway. Due to the refraction at the light entry surface 6 and the light exit surface 14, the light beam 8 is deflected only slightly.
  • the third light bundle 10 enters the light-guiding body from the LED 1 through the light entry surface 7 and is totally reflected at a flat boundary surface 15.
  • the interface 15 is arranged opposite to the LED so that the light after total reflection leaves the interface 15 approximately parallel.
  • the beam 10 is passed through the light guide body 3, which forms a kind of channel for the light beam 10 in this area.
  • the channel is formed by approximately parallel interfaces 16 and 17 of the light-guiding body 3, which extend laterally offset from the main emission direction of the LED 1. Upon impact of light rays on these interfaces, for example, the interface 16 as in FIG. 3 shown, the radiation is reflected.
  • the light beam 10 exits through the light exit surface 18 from the channel 16, 17 of the light-guiding body 3 and leaves it in the direction of approximately + 15 ° relative to the main emission direction of the LED.
  • the beam 10 is in the light distribution curve, in FIG. 4 is shown, the secondary maximum 19 formed.
  • the secondary maximum 19 is deflected less than the main maximum 13 with respect to the main emission direction of the LED. This configuration is particularly favorable for various lighting tasks, for example for the formation of street lighting.
  • the main maximum 13 can be aligned in the direction of the roadway, while the secondary maximum 19 brightens an area laterally of the roadway approximately below the streetlight. Due to the asymmetry of the main maximum 13, it is possible by a variable positioning of the LED lighting fixture, i. by a rotation of the LED lighting body about the vertical axis, according to the invention possible to align the lighting fixture for desired lighting tasks. It is advantageous that the secondary maximum 19 is in an angular range of ⁇ 20 ° to the vertical of the illumination device, because it ensures illumination of the area below the lamp, regardless of the azimuthal orientation of the main maximum thirteenth
  • pins 20 are provided on an upper side, with the aid of which the lighting device is mechanically fastened in a lamp, for example on a circuit board.
  • the light-guiding body can be glued or soldered.
  • the light guide body is partly with Metal provided and formed of a heat-resistant material (greater than 185 ° C).
  • a variable positioning of the light-guiding body is possible.
  • a partially circular centering aid 4 is provided in the recess 2, which cooperates positively with the LED or another opposing component.
  • the LED 1 can either be firmly connected to the light-guiding body 3 or fixed on the opposite component of the luminaire.
  • the embodiment of the lighting fixture shown in the figures, in the plan view, as shown in the FIG. 2 is shown, an approximately rectangular basic shape, wherein the light exit surfaces 12 and 14 form parts of a serrated profile on one side.
  • light exit surfaces may be provided on opposite sides of the lighting fixture.
  • light exit surfaces may also be provided on non-opposite sides of the light exit body.
  • the light exit body may have an approximately square basic shape and light exit surfaces are formed on all four side surfaces.
  • the light-guiding body can also be designed in the form of a hollow light guide, the boundary surfaces described above being formed by walls of the light waveguide which are mirrored inwards.
  • the LED lighting fixture comprises a plurality of LEDs. These are, for example, in a row parallel to the longitudinal extension of the light exit window, ie perpendicular to the image plane of FIGS. 1 and 3 arranged.
  • the boundary surfaces and the light exit surfaces of the light guide body extend in a straight line parallel to the arranged in a row LEDs.
  • LEDs can be different Combined color in an LED lighting fixture, for example, to produce white light.
  • FIG. 6 shows a plan view of an outdoor lamp 21, which is a street lamp in the illustrated embodiment.
  • FIG. 6 shows a plan view of the light exit side of the street lamp 21, wherein a mast 22 to which the lamp 21 attached, is shown in cross section.
  • a common board 23 On a common board 23, a plurality of LED lighting devices are mounted, each comprising an LED 1 and a light-guiding body 3, as described above.
  • the board is flat in the illustrated embodiment. However, according to alternative embodiments, the board may also be curved along an axis, in particular along the longitudinal axis of the luminaire.
  • the plurality of LED illuminators partially have a different spatial arrangement relative to rotation about their respective LED main emission direction.
  • the LED lighting devices are arranged symmetrically with respect to a vertical plane through the lamp.
  • the LED lighting devices are aligned so that their respective main maxima are each aligned substantially perpendicular to both sides of the vertical plane. This results in a total symmetrical light distribution curve of the luminaire, which in the polar diagram in FIG. 7 is shown.
  • the main maxima 13 of all lighting devices are superimposed to two combined main maxima 13 ', which extend symmetrically on both sides of the lamp.
  • the secondary maxima 19 are superimposed to a combined secondary maximum 19 ', which is mirror-symmetrical with respect to the vertical plane through the lamp.
  • the street lamp 21 are only a part, but preferably the majority of all LED lighting devices oriented so that their main maxima extend opposite to the vertical plane of the luminaire.
  • Two further groups 32a and 32b of LED lighting devices are inclined at an angle of + 10 ° and -10 ° with respect to the transverse axis of the lamp.
  • Two further groups 33a and 33b are inclined at an angle of + 20 ° and -20 ° with respect to the transverse axis of the lamp.
  • the rays of the respective main maximum of the different LED groups are shown.
  • the luminous intensity which is directed at the surface to be illuminated, is symmetrical on both sides of the luminaire, but displaced forwards at an angle of approximately ⁇ 15 ° with respect to the transverse axis of the luminaire.
  • this Lichtbandknickung can be, for example, a street evenly illuminate over its width, even if the street lamp 21 is mounted on one longitudinal side of the road.
  • a multiplicity of luminaires 21, which in each case a Lichtbandknickung, like in the FIG. 9 shown the road can be illuminated almost uniformly over its length and width.
  • FIG. 10 FIG. 2 shows the light distribution curve in a cone-crest representation according to FIG. 9
  • the LED lighting devices are divided into only two groups, each occupying an angle of 0 ° to the transverse light extension (this corresponds to the group 31, as shown in FIG. 6 is shown).
  • Such a luminaire is preferred if only one street side is to be illuminated, as in FIG. 10 shown.
  • street lights can also be mounted centrally above the road to illuminate both road halves of the road.
  • the invention also provides, in particular, that the LED lighting devices can be variably positioned on the board. This makes it possible in particular different Lichtbandknickitch, as in connection with the FIGS. 9 and 10 described, realized by a luminaire type.

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

Claims (15)

  1. Réverbère avec plusieurs dispositifs d'éclairage à LED, qui comprennent chacun au moins une LED (1) avec une direction d'émission principale dans l'émission de lumière des LED et un corps de déviation de lumière (3), qui est constitué d'une fibre optique et qui comprend au moins un face de sortie de lumière (12, 14, 18),
    la lumière des LED (1) étant introduite dans le corps de déviation de lumière (3) et le corps de déviation de lumière (3) déviant au moins une partie de la lumière de façon à ce qu'elle quitte le corps de déviation de lumière (3) par la face de sortie de lumière (12, 14, 18) avec une distribution de lumière qui est asymétrique par rapport à la direction d'émission principale des LED,
    la distribution de lumière définissant, dans un plan de coupe, dans lequel se trouve la direction d'émission principale des LED et qui coupe la face de sortie de lumière (12, 14, 18), une courbe de distribution de lumière qui comprend un maximum principal (13) et au moins un maximum secondaire, le maximum principal (13) étant asymétrique par rapport à la direction d'émission principale des LED.
  2. Réverbère selon la revendication 1, le maximum principal (13) se trouvant dans le plan de coupe par rapport à la direction d'émission principale des LED, dans une plage angulaire entre 45° et 80°, de préférence entre 55° et 75° et/ou le maximum secondaire (19) dans le plan de coupe par rapport à la direction d'émission principale des LED dans une plage angulaire entre -30° et 30°, de préférence entre - 20° et 20°.
  3. Réverbère selon l'une des revendications précédentes, la part de la lumière qui quitte le corps de déviation de lumière (3) en direction du maximum principal (13) et la part de lumière qui quitte le corps de déviation de lumière en direction du maximum secondaire (19) passent par différentes faces de sortie de lumière (12, 14, 18) du corps de déviation de lumière (3).
  4. Réverbère selon l'une des revendications précédentes, la part de la lumière qui quitte le corps de déviation de lumière (3) en direction du maximum principal quitte le corps de déviation de lumière par au moins deux faces de sortie de lumière (12, 14) différentes du corps de déviation de lumière (3).
  5. Réverbère selon l'une des revendications précédentes, le corps de déviation de lumière comprenant une ou plusieurs faces (11, 15, 16) qui sont disposées par rapport aux LED de façon à ce que la lumière des LED y soit totalement réfléchie.
  6. Réverbère selon l'une des revendications précédentes, la lumière des LED étant introduite par une ou plusieurs faces d'entrée de lumière (5, 6, 7) dans le corps de déviation de lumière (3).
  7. Réverbère selon la revendication 6, l'une ou plusieurs faces d'entrée de lumière étant disposées de manière symétrique en rotation autour de la direction d'émission principale des LED ou au moins partiellement parallèle à au moins une face de sortie de lumière (12, 14, 18).
  8. Réverbère selon la revendication 6 ou 7, la lumière des LED étant divisée, lors de l'introduction par plusieurs faces d'entrée de lumière (5 ; 6 ; 7) en au moins deux, de préférence trois faisceaux, plus particulièrement un ou plusieurs des faisceaux (8, 9) étant déviés par le corps de déviation de lumière en direction du maximum principal (13) et un ou plusieurs des autres faisceaux (10) étant déviés en direction du maximum secondaire (19).
  9. Réverbère selon l'une des revendications précédentes, l'au moins une face de sortie de lumière (12, 14, 18) s'étendant en ligne droite dans une direction perpendiculaire audit plan de coupe.
  10. Réverbère selon l'une des revendications précédentes, plusieurs LED étant prévues, qui sont disposées plus particulièrement en ligne, plus particulièrement perpendiculaire audit plan de coupe.
  11. Réverbère selon l'une des revendications précédentes, le corps de déviation de lumière présentant des côtés non parallèles sur lesquels sont disposées les faces de sortie de lumière.
  12. Réverbère avec un circuit imprimé (23), sur lequel sont installés plusieurs dispositifs d'éclairage à LED, chacun des dispositifs d'éclairage à LED comprenant au moins une LED (1) avec une émission de lumière symétrique en rotation par rapport à une direction d'émission principale des LED et chacun un corps de déviation de lumière (3), qui est constitué d'une fibre optique et qui comprend au moins une face de sortie de lumière (12, 14, 18), la lumière des LED (1) étant introduite dans le corps de déviation de lumière (3) et le corps de déviation de lumière (3) déviant au moins une partie de la lumière de façon à ce qu'elle quitte le corps de déviation de lumière (3) par une face de sortie de lumière (12, 14, 18) avec une distribution de lumière qui est asymétrique par rapport à la direction d'émission principale des LED, la distribution de lumière définissant, dans un plan de coupe dans lequel se trouve la direction d'émission principale des LED et qui coupe la face de sortie de lumière (12, 14, 18), une courbe de distribution de lumière qui présente un maximum principal (13) qui est asymétrique par rapport à la direction d'émission principale d'émission des LED.
  13. Réverbère selon la revendication 12, les plusieurs dispositifs d'éclairage à LED comprenant deux groupes (31a, 31b, 32a, 32b, 33a, 33b) ou plus de dispositifs d'éclairage à LED, dont les maxima principaux présentent chacun la même orientation spatiale par rapport à leur direction d'émission principale de LED respective, plus particulièrement l'orientation spatiale de deux des groupes (31a, 31b ; 32a, 32b ; 33a, 33b) de dispositifs d'éclairage à LED présentant une symétrie en miroir par rapport à un plan qui coupe perpendiculairement le circuit imprimé (23) du luminaire.
  14. Réverbère selon la revendication 13, qui comprend un premier et un deuxième groupe (31a, 31b) de dispositifs d'éclairage à LED, dont les maxima principaux présentent chacun un angle azimutal par rapport à leur direction d'émission principale de LED respective, de façon à ce que les maxima principaux des deux groupes soient orientés de manière opposée entre eux par rapport à l'orientation angulaire azimutale.
  15. Réverbère selon la revendication 14, qui comprend en outre un troisième et un quatrième groupe (32a, 32b) de dispositifs d'éclairage à LED, les maxima principaux du troisième groupe (32a) présentant un angle azimutal unique en ce qui concerne la direction d'émission principale des LED entre 5° et 30° par rapport aux maxima principaux du premier groupe et le quatrième groupe (32b) présentant un angle azimutal unique en ce qui concerne la direction d'émission principale des LED entre -5° et -30° par rapport au deuxième groupe.
EP08016580.6A 2007-09-20 2008-09-19 Dispositif d'éclairage DEL doté d'une répartition asymétrique de la lumière, en particulier pour éclairages publics Active EP2039985B1 (fr)

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DE102009021208A1 (de) * 2009-05-13 2010-11-18 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Straßen
DE102009021182A1 (de) * 2009-05-13 2010-11-18 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Straßen
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ES2456701T3 (es) 2011-11-10 2014-04-23 Hella Kgaa Hueck & Co. Alumbrado para un aparcamiento de coches
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