EP2715218B1 - Réflecteur pour réverbère - Google Patents

Réflecteur pour réverbère Download PDF

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Publication number
EP2715218B1
EP2715218B1 EP12727110.4A EP12727110A EP2715218B1 EP 2715218 B1 EP2715218 B1 EP 2715218B1 EP 12727110 A EP12727110 A EP 12727110A EP 2715218 B1 EP2715218 B1 EP 2715218B1
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EP
European Patent Office
Prior art keywords
reflector
band
accordance
curve
sub
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.)
Not-in-force
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EP12727110.4A
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German (de)
English (en)
Other versions
EP2715218A2 (fr
Inventor
Peter Schreiber
Chen Li
Maik Schwede
Jens GÖHRING
Christoph Schierz
Andreas Walkling
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.)
Jenoptik Polymer Systems GmbH
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Jenoptik Polymer Systems GmbH
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Publication of EP2715218A2 publication Critical patent/EP2715218A2/fr
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Publication of EP2715218B1 publication Critical patent/EP2715218B1/fr
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • F21V7/048—Optical design with facets structure
    • 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
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • 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

  • Embodiments of the present invention provide a reflector for a street lamp.
  • Street lamps are used in particular as LED street light (LED Light Emitting Diode - light emitting diode), for the illumination of outdoor facilities, such as sports fields, parking lots or even industrial plants or in multi-purpose halls used.
  • Modified lighting with the result of improved light distribution curves are particularly interesting for use in such applications, where changing environmental influences, such as rain, fog, other changing visibility, including in industrial plants (steam generation, changes in natural light, in measurement and test systems in Laboratories or manufacturing facilities, etc.).
  • the angular distribution of a street lamp should have a so-called bat shape (bat wing shape) along the longitudinal direction of the road. That's not all.
  • a road surface is not normally an ideal surface for diffuse reflection (Lambertian reflection) and has a mixture of directional and diffuse reflection.
  • the amount of light reflected from a street and perceived by a viewer depends on the relative position of the fixture, the observer, and the point of interest on the street.
  • light with a certain amount illuminates a point on the street opposite the lamp, compared to the case where the point under consideration between the lamp and the The viewer is reflecting a greater portion of the light back from the street instead of being reflected and viewed along the street.
  • the distribution of the light intensity along the width direction of the road is not homogeneous or symmetrical, but with more light on the roadside opposite the lamp.
  • the directional reflection is stronger. This causes an even greater amount of light to be distributed from the luminaire to the opposite side of the street.
  • a larger amount of light should illuminate the area under the luminaire, as a greater portion of the light striking that area is reflected to the sky.
  • the reflection is higher; thus a lower intensity is needed to reach a certain brightness level.
  • the lighting requirement for road light is complicated and the light distribution and intensity differ between dry and wet road surface.
  • Embodiments of the present invention provide a reflector for a street lamp having an opening for a light source and a reflector surface extending away from the opening in a central radiation direction without redirecting light of the light source along the central radiation direction.
  • the reflector surface is subdivided in the direction of the central emission direction into bands which connect continuously along band edges.
  • the band edges have at least one section consisting of contiguously and differentially attached curve segments in the form of conical curves, the section having a first point, in FIG wherein a curvature vector of the section faces inwardly and has a second point in which the curvature vector faces outward.
  • a reflector can be provided which allows homogeneous light distribution and can be produced by conventional methods, when the reflector surface of the reflector is subdivided into bands which continuously adjoin one another along band edges.
  • the subdivision of the reflector into bands offers a high number of degrees of freedom for the realization of the reflector.
  • the continuous connection of the bands allows the reflector to be produced by conventional means, such as injection molding.
  • the configuration of the at least one portion of the band edges enables the curvature vector of the portion to point inwardly in the first point and the curvature vector outwardly in the second point to have a design of the reflector surface with both concave and convex surfaces and thus a high number of degrees of freedom in the design of the reflector surface.
  • a reflector for a street lamp can be provided, which allows both a more homogeneous illumination, as well as easily produced by conventional means.
  • curve segments of adjacent band edges may be associated with each other and the reflector surface may each have a connecting line between starting points of two mutually associated curve segments and between end points of the two associated curve segments, so that the two associated curve segments together with the connecting lines form the circumference of a reflector part surface.
  • the reflector can be subdivided into a plurality of reflector partial surfaces, which can have different shapes and sizes depending on the position on the reflector. For example, each reflector sub-area (also referred to as patch), light in a predetermined range (for example, according to a DIN standard) reflect the road.
  • the band edges can have at least one section in which, at a first point, a curvature vector of the section points inwards and in a second point the curvature vector of the section points outwards.
  • a first curve segment of a first band edge and a second curve segment of a second band edge which leads to the first band edge in the direction of the central emission direction adjacent, having curvature vectors pointing inwardly with respect to the reflector (ie into the reflector).
  • a reflector part surface which is bounded by this first curve segment and the second curve segment, therefore bulges outwards.
  • the reflector surface is therefore concave in this region of the reflector partial surface.
  • a third curve segment (which, for example, connects continuously and differentially to the first curve segment) and a fourth curve segment (which, for example, adjoins the second curve segment continuously and differentially), which is adjacent to the third curve segment in the direction of the central emission direction, can have curvature vectors which face outward with respect to the reflector (ie away from the reflector).
  • a second, limited by the third curve segment and the fourth curve segment reflector surface can therefore bulge towards the reflector.
  • the reflector surface may be convexly curved in this region of the second reflector part surface.
  • adjacent reflector partial surfaces for example, have alternately different directions of curvature.
  • this angular difference between two tangents at two checkpoints (eg, start point and end point) of a curve segment may be greater than 10 degrees.
  • the reflector may have a back reflector and a front reflector.
  • the front reflector may be subdivided into a first number of bands, and the back reflector may be divided into a second number of bands which is different (e.g., larger) than the first number of bands.
  • the front reflector and the rear reflector each have a band area in which they consist of bands.
  • An extension of the band region of the back reflector in the direction of the central emission direction may be greater than an extension of the band region of the front reflector in the direction of the central emission direction.
  • the reflector 100 has an opening 101 for a luminous means 3.
  • the bulb 3 is in the Fig. 1b . 3 and 4b symbolically represented with a circular area.
  • the luminous means 3 may be a so-called LED cluster, which has a plurality of LEDs.
  • a base of the LED cluster 3 can be chosen arbitrarily, and does not necessarily have to be circular, as shown in the figures.
  • the luminous means 100 has a reflector surface 103.
  • the reflector surface 103 is located in the interior of the reflector 100 and serves to reflect light emitted by the luminous means 3 in order to produce a predetermined light distribution for the street lamp.
  • the reflector 100 is arranged in a three-dimensional XYZ coordinate system.
  • the XYZ coordinate system has an X-axis, a Y-axis and a Z-axis which are perpendicular to each other and thus form the directions of the space.
  • the reflector surface 103 extends away from the opening 101 in a central emission direction 105, without redirecting light of the luminous means 3 along the central emission direction 105.
  • the mean emission direction 105 runs along the Z axis and thus forms a normal of an XY plane spanned by the X axis and the Y axis.
  • the reflector surface 103 does not deflect light from the luminous means 3 along the central emission direction 105.
  • light which is emitted by the luminous means 3 in the direction of the central emission direction 105 does not strike the reflector surface 103 and is thus not deflected, but strikes one directly illuminating area (such as a street).
  • the reflector 100 has no so-called bridge structure between the opening 100 (for the luminous means 3) and a light exit opening 107 of the reflector 100.
  • the reflector surface 103 is subdivided in the direction of the central emission direction 105 into bands 109a to 109g and 111a to 111d, which adjoin one another continuously along band edges (without jump) and (optionally) non-differentially.
  • Each band 109a to 109g, 111a to 111d can have a first band edge, for example an upper band edge, and a second band edge, for example a lower band edge, which encompasses the band 109a to 109g, 111a to 111d (at least in the direction of the central emission direction 105 ) limit.
  • the band edges have at least a portion consisting of contiguously and differentially attached curve segments in the form of conical curves, the portion having a first point at which a curvature vector of the portion points inwardly and has a second point at which the curvature vector pointing to the outside.
  • one of the band edges of the reflector has such a portion or a plurality of band edges of the reflector.
  • a first band edge 113a of a band 109c which is also a second band edge of a band 109b of the reflector 100, has a first curve segment 115a in the form of a first conical curve and a second curve segment 115b in the form of a second conical curve.
  • the first curve segment 115a and the second curve segment 115b merge into one another continuously and differentially.
  • a curvature vector of the first curve segment 115a points inwards (that is to say in the reflector 100), while a curvature vector of the second curve segment 115b faces outward (ie away from the reflector 100).
  • the first curve segment 115a therefore bulges outward with respect to the reflector 100, ie is concavely curved, and the second curve segment 115b bulges inward with respect to the reflector 100 and is therefore convexly curved.
  • curve segments of adjacent band edges can be assigned to one another and the reflector surface 103 can each have a connecting line between starting points of two mutually associated curve segments and between end points of two associated curve segments, so that two associated curve segments together with the connecting lines between their starting points and end points the scope of reflector partial surfaces (also referred to as patches) form.
  • the reflector surface 103 can be divided into reflector partial surfaces whose convexities can be set via the starting points and end points of the curve segments delimiting them.
  • Such reflector partial surfaces are designated, for example, by the reference numerals 51, 52, 53 and 54, and in FIG Fig. 2 shown.
  • the reflector part surface 53 is spanned by a first band edge 113b of a band 109d and a second band edge 113c of the band 109d and two connecting lines 116a, 116b from the first band edge 113b of the band 109d to the second band edge 113c of the band 109d.
  • the connecting lines between the starting points or end points of the individual curve segments of the bands 109a to 109g, 111a to 111d may be straight lines.
  • Adjacent sections of a band edge can either meet in a bent edge of the reflector surface 103 or terminate on an outer surface of the reflector surface 103.
  • Such a bending edge 117 is in Fig. 1a shown. At this bending edge 117, a first section of the strip edge 113c meets with a second section of the strip edge 113c adjacent thereto.
  • This bending edge 117 may, for example, lie in a symmetry plane of the reflector 100.
  • Adjacent sections of a band edge, which meet at a bending edge 117 of the reflector 100, may belong to different sub-modules.
  • the first portion of the band edge 113c may belong to the first sub-module 32a of the back reflector 32 and the second portion of the band edge 113c adjacent to the first portion may belong to the second sub-module 32b of the back reflector 32.
  • the band edges 109a to 109g, 111a to 111d are respectively disposed in mutually parallel band edge planes.
  • the mean emission direction 105 can form a normal of these mutually parallel band edge planes.
  • the band edge planes are spanned by the X-axis and the Y-axis and are spaced apart in the Z-direction, ie along the direction of the central emission direction 105.
  • the XY planes in which the band edges run are thus perpendicular to the plane of symmetry of the reflector 100 and the boundary plane in which the interface of the front reflector 31 and the back reflector 32 lies. Distances between two consecutive band edges in the direction of the emission direction 105 are therefore constant in the direction of the central emission direction 105.
  • the heights of the individual bands 109a to 109g, 111a to 111d are constant, respectively.
  • band edge distances of the bands 109a to 109g, 111a to 111d may increase with increasing distance to the aperture 101 (with increasing Z).
  • a first distance between two band edges of a first band (eg, band 109a) may be less than a second distance between two band edges of one band band second band (for example, the band 109e), which is arranged in the direction of the central emission direction 105 after the first band 109a.
  • the reflector 100 may form an illumination system or a light source together with the luminous means 3, and the mean emission direction 105 may be, for example, an average emission of the luminous means 3 (for example averaged over the angular distribution of the luminous means 3).
  • Adjacent bands are constantly but not differentially connected to each other.
  • the reflector 100 has kinks between adjacent bands.
  • An extension of the reflector 100 in the X-direction that is to say along a degree of intersection of the boundary plane and that of a band edge plane, can be selected to be at least 3.5 times as large as an extension of the luminous means 3 along these cutting levels.
  • the front reflector 31 may have a band portion in which it consists only of bands 111a to 111d
  • the back reflector 32 may have a band portion in which the back reflector 32 consists only of the bands 109a to 109g.
  • An extension of the band region of the back reflector 32 in the direction of the central emission direction 105 is greater than an extension of the band region of the front reflector 31 in the direction of the central emission direction 105.
  • this can serve to achieve the desired To achieve radiation characteristic of the reflector 100 in conjunction with the bulb 3, that is, more light is reflected on the road, as to the roadside (such as the footpath).
  • the front reflector 31 may instead have a plane reflector plate 33, which adjoins the band region of the front reflector 31 and extends from the band region of the front reflector 31 in the direction of the central emission direction 105.
  • the reflector 100 will be described in more detail.
  • the reflector 100 has two different reflectors, the front reflector 31 and the rear reflector 32.
  • the front reflector 31 is directed in an application to the center of the road, which is in front of the lamp.
  • the rear reflector 32 unlike the front reflector 31, is oriented toward a pedestrian lane or roadside behind the lamp.
  • the reflector 100 has a number of bands 109a to 109g, 111a to 111d, as well as mechanical components 36 for attachment and the molding process.
  • the reflector 100 has surfaces for blocking unwanted light paths. Such a surface is the reflector plate 33.
  • a band 109a to 109g, 111a to 111d of the reflector 100 is an optically active surface of the reflector 100 which extends from Zmin to Zmax.
  • a band 109a-109g, 111a-111d may be a ruled surface formed by sweeping a straight line segment (eg, connecting lines 116a, 116b) whose endpoints are along different paths (e.g. along the band edges), which are curves defined respectively in different XY planes with control points (for example, start and end points of curve segments).
  • a curve segment between two control points is defined by a conical curve whose tangents at control points coincide with those of an adjacent curve segment, making the entire curve uniform (continuous and differentiable).
  • FIG. 6 shows such a free-form, which is such a control surface formed by varying a straight segment 11a, 11b whose end points move along different paths, which are curves 12a, 12b, 12c, each in different XY planes with control points 10th are defined.
  • a maximum absolute value of the tip angle 13 from the X axis to the curve tangent in the example in FIG Fig. 6 75 degrees, which ensures that the designed optics can be made by polymer injection molding.
  • two adjacent bands (and also two adjacent patches) share a same trajectory or band edge 12b.
  • an acute angle between a curve tangent at a starting point or an end point of a curve segment of a belt and the X axis or the boundary plane may be 75 degrees or less. In other embodiments, this may apply to all start and end points of the curve segments of a section of a band.
  • a band is determined by two curves (band curves), which in turn can consist of sections consisting of conical curves attached to each other.
  • Each band curve is determined by a series of control points (for example, start and end points of adjoining curve segments in the form of conic curves).
  • a tangent parameter at control points can be set such that a surface segment (such as a reflector patch) formed by each pair of corresponding cam segments reflects light, avoiding artifacts from the images of the individual LEDs.
  • the relative positions of two corresponding curve segments are adjusted so that the formed surface segments (or reflector sub-areas) reflect light away into the illumination area and away from the LED centerline 2 (or central emittance direction 105) as far as possible. Optimization of the reflector 100 is accomplished by varying the parameters of tangents and positions of control points.
  • the reflector 100 has a plurality of reflector partial surfaces or patches (for example the reflector partial surfaces 51, 52, 53, 54).
  • Adjacent bands share a common band curve and show a continuous but not smooth profile. For example, adjacent bands may merge smoothly (without jumps) but not differentiable (due to edges),
  • a reflector patch or patch is that part of a band spanned from adjacent control points (eg, from a start and an end point of an upper band curve of the band and a start and an end point of a lower band curve of the band).
  • control points that is, for example, the start and end points of the curve segments
  • the control points have as parameters X-Y-Z positions in the X-Y-Z coordinate system of the reflector 100 and a tangent direction (in the XY plane) at the control points.
  • a curve segment connecting two adjacent control points in a series of control points is defined as follows.
  • P 0 , P 1 , P 2 and w 1 are defined factors for reproducing the conical curve.
  • a center of the luminous means 3 (for example in the form of an array of LEDs, so-called LED cluster) is arranged in the origin of the XYZ coordinate system of the module development space and LED center lines 2 (as described, for example, in US Pat Fig. 5 in conjunction with a light source 1) are parallel to the Z axis.
  • the LED center lines can therefore be identical to the central emission direction 105.
  • the reflector itself or the module is designed in the + Z range.
  • the reflector 100 is subdivided into different bands whose band curves extend in XY planes.
  • the reflection surface of each band is a ruled surface.
  • a reflector face in a band is a surface segment of a continuous ruled surface, so there are no obvious boundaries between two (adjacent) reflector faces of a band.
  • Reflector surface 103 limited by restriction planes:
  • the reflector part surfaces are delimited by bottom surfaces 23, 24.
  • a bottom surface 23 lies in a boundary plane 25, which extends between a + Y edge of the luminous means 3 and a -Y edge of the illumination region.
  • a bottom surface 24 lies in a boundary plane 26 which extends from a -Y edge of the luminous means 3 to a + Y edge of the illumination region.
  • the edges of the illuminant 3 or the cluster edges and the edges of the illumination area or the illumination area edges are parallel to the X-axis.
  • the ribbons located closest to an LED cluster mounting plane are first designed.
  • the bands having the least Z component, for example, which are closest to the aperture 101 are first designed.
  • the design starts with a given control point (starting point), which lies on the Y-axis and is close to the LED cluster 3. Thereafter, the rest of the control points are set in an ordered order.
  • the rest of the bands are also defined in an ordered order and share a series of control points with a previous band. According to the definition for the bands, there are no profile discontinuities (no jumps) and each band has a smooth (eg smooth) surface.
  • the reflector sub-areas can be coded as follows:
  • the next band is B2, etc.
  • the reflector subarea in the B2 band which shares the same band edge curve segment with B1.Pch1 is B2.Pch1, such as. BBB2.Pch1 in Fig. 2 (Also provided with the reference numeral 52).
  • the reflector partial surface which follows Pch1 in the positive X-axis direction is Pch2, etc.
  • the reflector partial surface which follows Pch1 in the negative X-axis direction is Pch-1, etc.
  • the reflector partial surfaces B.B4.Pch-2 (FIG. also designated by reference numeral 53) and B.B4.Pch4 (also designated by reference numeral 54) in FIG Fig. 2 shown.
  • the number of control points and bands is now minimized to keep the simulation fast.
  • the X-dimension of the reflector 100 is also set to a minimum value.
  • orientations of the reflector partial surfaces are selected so that double reflection is prevented and the light is deflected as far as possible from a position of the street lamp.
  • a first tangent of that curve segment at a starting point of the curve segment may deviate at least an angle of 10 ° from a second tangent of the curve segment at an endpoint of the curve segment.
  • an optimization is performed to determine the number and height of the bands as well as the x-dimension of the reflector 100.
  • the Z-dimension of the back reflector 32 is influenced by the X-dimension of the reflector 100 as well as the restriction plane 25.
  • the Z dimension of the front reflector 31 is selected to maximize the light exploitation efficiency. If the Z dimension is chosen too large, certain light paths will be blocked, resulting in stray light and reducing efficiency. If the Z dimension is set too small, too little light will be reflected by the reflector 100 to achieve the desired brightness distribution or illumination distribution and more light will be reflected from the reflector plate or reflector surface 33 and will not reach the road area.
  • the heights of the bands are chosen so that the closer a band is to the printed circuit board on which the luminous means 3 is arranged, the lower its height.
  • a height of the bands increases with increasing in the direction of the emission direction 105 distance from the opening 101, a height of the bands (for example in the direction of the emission direction 105).
  • An X-dimension of the reflector 100 without the additional mechanical components 36 can be set to 80 mm.
  • the X-dimension of the reflector 100 may be selected to be 3.5 times greater than the X-dimension of the LED cluster 3.
  • the heights of the bands of the front reflector 31 from F.B1 to F.B4 may be 2, 4, 7 and 8 mm.
  • the front reflector 31 may include at least three bands.
  • the heights of the bands from B.B1 to B.B7 may be 2, 4, 5, 6, 6, 6, and 11 mm.
  • the heights of the bands from B.B1 to B.B7 may be 2, 4, 5, 6, 7, 8 and 8 mm
  • the front reflector 31 may include at least five bands.
  • the specified height values are measured in the Z-axis direction, ie in the direction of the mean emission direction 105.
  • the number of reflector subareas in a band and the X positions of the control points can be determined.
  • the Y positions of the tape start control points can be optimized.
  • a good compromise for a minimum number of reflector faces is 10 reflector faces per band (from Pch-3 to Pch7). Further, it has been found that the closer the reflector interface is to the LED cluster, the smaller the size of the reflector interface should be.
  • X-intervals from control points of the reflector surfaces from Pch1 to Pch3 may be less than 3 mm and from B.Pch-1 to B.Pch-7 and from S.Pch-1 to S.Pch-6 less than 2 mm be.
  • the reflector partial surfaces can have alternately convex and concave shapes as the number of reflector partial surfaces increases.
  • curve segments with curvature vectors pointing inwardly and curve segments with curvature vectors pointing outward may alternate.
  • the Reflector part surfaces are assigned to different lighting areas and manually optimized.
  • the reflector sub-areas B.Pch-7 to B.Pch4 reflect light in an area X> 10 m on the road.
  • the reflector partial surfaces of B.Pch5 to B.Pch7 reflect light in a range of -5 m ⁇ X ⁇ 15 m, Y> 3 m on the road.
  • the reflector sub-areas B.Pch8 and B.Pch9 reflect light in an area X ⁇ -5 m, Y> 3 m on the street (blocked light 41). These reflector partial surfaces in the bands B1 and B2 prevent glare.
  • the reflector partial surfaces B.Pch10 reflect light in a range X> -5 m on the road and form a transition structure (to an adjacent reflector) to avoid a molding error.
  • Reflector subfaces F.Pch-7 to F.Pch-8 reflect light in a range of -5 m ⁇ X ⁇ 5 m, Y> 3 m on the road.
  • the reflector partial surfaces F.Pch-6 to F.Pch3 reflect light in an area X> 10 m on the road.
  • the reflector partial surfaces F.Pch4 to F.Pch9 reflect light in a range 5 m ⁇ X ⁇ 15 m on the road and block light which, like the light 41, would produce stray light.
  • these reflector partial surfaces in bands B1 and B2 prevent glare.
  • Optimized parameters are mainly the tangent directions at the control points, with the curve segments set as circle segments.
  • the Y positions of the control points are also variables.
  • the X and Y positions of the control points of the reflector partial area Pch1 are optimized. Only for a small number of other partial reflector surfaces can the X position or the Y position be optimized by manual intervention.
  • the above merit function can be based on a simulated brightness distribution map on the road surface. It may have various factors including total and longitudinal uniformity according to the street lighting standards (DIN EN 13201 standard ME3 and MEW3 lighting classes for dry and wet roads), usable light transmission to the street, light pollution and glare control. Considering manufacturing constraints, additional constraints may be introduced, such as a maximum absolute acute angle from the X axis to a 75 ° curve tangent, and the radius of the reflection surface 103 greater than 0.5 mm.
  • a free-form reflecting surface of the + Y module part 31 (of the front reflector 31) has a shorter Z dimension than that of the -Y module part 32 (of the back reflector 32), resulting in optical optimization for forming a required illumination pattern and to improve the light utilization rate.
  • the reflection plate 33 is arranged between the maximum Z value of the free-form reflecting surface of the front reflector 31 and the maximum Z value of the entire reflector 100.
  • the reflection plate 33 With an optimized inclined angle about the X axis, the reflection plate 33 has a flat surface that passes a lower edge line 34 of the module, which is simultaneously a cut line of the constraint plane 26 and the Z dimension cutoff plane 35 of the entire reflector 100. This part (the reflection plate 33) prevents light from hitting other clusters and reflects the light to the illumination area.
  • Fig. 7a shows an illumination system 700 according to an embodiment of the present invention.
  • the illumination system 700 has a first reflector 701a and a second reflector 701b, which are arranged parallel to one another on a common carrier, for example in the form of a printed circuit board 703.
  • the reflectors 701a, 701b may have been designed using the design method described above, and thus may be similar to the reflector 100, for example.
  • the illumination system 700 has a first illumination means 705a, for example in the form of a first LED cluster, and a second illumination means 705b, for example in the form of a second LED cluster.
  • the first lighting means 705a is disposed on the carrier 703 so as to be seated in an opening 101a of the first reflector 701a, so that light emitted from the first lighting means 705a along the central radiation direction thereof is not blocked by the first reflector 701a or is diverted.
  • the second light emitting means 705b is disposed on the carrier 703 so as to be seated in an opening 101b of the second reflector 701b, so that light emitted from the second light emitting means 705b along the central radiation direction thereof is not reflected by the second reflector 701b blocked or diverted.
  • a combination of an LED cluster or a light source together with a reflector can form a light source.
  • a street lamp is typically formed from a panel of such light sources, an electrical driver, a housing and a cover glass.
  • the first reflector 701a and the second reflector 701b may each include a front reflector and a back reflector.
  • the first reflector 701a has a front reflector 731a and a back reflector 732a
  • the second reflector 701b has a front reflector 731b and a back reflector 732b.
  • the illumination system 700 can also have a plurality of such reflectors 701 a, 701 b with associated light sources 705 a, 705 b, which are arranged, for example, in a field on the common carrier 703.
  • the reflectors 701a, 701b may be identical, and thus also the front reflectors 731a, 731b and the back reflectors 732a, 732b are identical.
  • the two reflectors 701a, 701b have an identical solid angle distribution, so that when one of the illumination means 705a, 705b fails, the solid angle distribution in an illuminated area does not change but only the flux (the brightness).
  • the reflectors 701a and 701b may also differ from each other to produce variable illumination patterns. This can be useful, for example, to adapt a lighting pattern of the lighting system, which can be used for example in street lamps, depending on environmental conditions.
  • an LED street lighting may be provided that employs LED clusters as the light sources 705a, 705b and that includes the two different types of reflective optics or reflectors 701a, 701b and includes, for example, a street having two variable illumination patterns Depending on conditions, such as wet or dry, can be illuminated to improve the uniformity of the brightness and the light utilization rate.
  • the reflectors 701a, 701b may be adapted to the various environmental conditions, such as wet or dry, and the illumination system 700 may be configured to use the illuminants 705a, 705b of the light source 705a, 705b, depending on environmental conditions, for example, detected by an internal or external sensor Lighting system 700 on and off.
  • the LED clusters can be arranged in a matixarray (matrix field) in a plane in which a mounting plate (for example the surface of the carrier 703) is arranged at the same time.
  • LEDs of at least one chromatic type may be used in the LED clusters and arranged identically in these clusters on the carrier 703.
  • y is an adjustment parameter, which in embodiments of the present invention may be 0.5128, which describes an energy angle distribution at a half-peak of 75 ° (diverging angle of 150 °) greater than the divergence angle of the Lambert's commonly found in high power LEDs Radiation characteristic is.
  • the preferably use of strongly divergent emitting LEDs allows the realization of short in the light propagation direction reflectors.
  • the two types of reflectors or reflective optics modules 701a, 701b may be referred to as WET or DRY.
  • Each of the reflectors 701a, 701b is combined with a single LED cluster 705a, 705b such that the illumination system 700 comprises an array of reflectors 701a, 701b.
  • Each cluster 705a, 705b having the same reflector 701a, 701b has an identical energy distribution pattern, resulting in a linearly additive array device.
  • the combinations have the reflectors 701 a in conjunction with the bulbs 705a has a first common energy-angle distribution, and the combinations of the reflectors 701b in conjunction with the bulbs 705b have a second common energy-angle distribution different from the first energy-angle distribution.
  • Light emitted by the light sources 705a is thus superimposed linearly additive, just as light emitted by the light sources 705b.
  • the change of the illumination pattern dependent on the road surface conditions can be realized by turning on and off the LED clusters or bulbs 705b combined with DRY modules (e.g., reflectors 701b).
  • DRY modules e.g., reflectors 701b
  • the LED clusters 705b and 705b are turned off with the DRY modules (reflectors 701b), and a lighting pattern is provided only by those LED clusters 705a or 705a with NASS modules (e.g., reflectors 701a) , which are optically designed and optimized to achieve improved uniformity of brightness on a surface having a reflection characteristic defined with the reflection table CIE W4.
  • a DRY module (eg, reflector 701a) is designed and optimized to provide the difference in illumination intensity distribution between the illumination pattern provided by LED cluster 705b or illuminator 705b with NASS modules (reflectors 701b) and a second illumination pattern. to achieve an improved uniformity of brightness on a surface having a reflection property defined with the reflection table CIE R3.
  • the design process described above for designing the reflectors 701a, 701b has been devised, which is applied to the design of both reflectors 701a, 701b to produce reflector structures that can control stray light resulting from multi-reflection of light is emitted from other LED clusters, and in which all the light and only the light which is reflected and redirected is light which is deflected out of the illumination area by the LEDs (for example, light which is different from the central emission direction ). This allows the remaining part of the light emitted from the LEDs to reach the illumination area directly without being reshaped, thus minimizing the energy loss caused by absorption of the reflection surface 103.
  • the NASS modules and the DRY modules may differ from each other in that they have different heights.
  • the front reflectors 731a, 731b are identical in the two reflectors 701a, 701b, while only the back reflectors 732a, 732b differ from one another, for example in that the heights of their bands are different.
  • the heights of the bands in the back reflector 732b of the reflector 701b (ie, the NASS module) from B.B1 to B.B7 may be 2, 4, 5, 6, 6, 6, and 11 mm, while the back reflector 732a of the reflector 701a (ie the DRY module), the heights of the bands from B.B1 to B.B7 can be 2, 4, 5, 6, 7, 8 and 8 mm.
  • Fig. 7b 1 shows a lighting pattern on the left as it may be emitted by the lighting system 700 in wet environmental conditions.
  • the LED cluster 705b or the light source 705b which is combined with the second reflector 701b (ie with the NASS module)
  • the LED cluster 705a or the light source 705a which is connected to the light source 705a first reflector 701a (ie, combined with the DRY module) is turned off.
  • Fig. 7b 11 shows, on the right side, a lighting pattern of the dry ambient lighting system 700 in which both the illuminant 705a and the illuminant 705b are turned on.
  • Embodiments of the present invention utilize curved free-form reflector facets or facets.
  • An advantage of this is that no artifacts of LED clusters are projected onto the street, allowing for better color mixing.
  • Embodiments of the present invention provide a lighting system (for example, in the form of a lighting design) for providing various light distributions depending on road or foundation or ground or soil or terrain and / or environmental conditions that operates with an LED cluster matrix array.
  • a lighting system for example, in the form of a lighting design
  • which is arranged in a plane and has two types of reflection optical modules (reflectors 701a, 701b) designed with the same optical modeling approach that applies freeform surfaces.
  • each of the LED cluster LEDs has at least one chromatic type LEDs on a planar surface that is the same as the plane of the cluster array.
  • each of the LED clusters is optically combined with a reflective optics module (such as the reflectors 701a, 701b) to provide a lighting pattern on a roadway that is the same as that through a laser
  • a reflective optics module such as the reflectors 701a, 701b
  • each of the freeform patches eg, each of the bands
  • each of the freeform patches is a ruled surface formed by varying a straight segment whose endpoints move along different paths (eg, along the band edges) that are curves that in each case in two levels with two control points, where the curves run evenly.
  • a curve segment between two control points may be defined with a conical curve whose tangents at the two control points coincide with those of an adjacent curve segment.
  • two adjoining curve segments of a section of a band edge can have the same slope at their points of contact, so that the two curve segments merge into one another in a continuous and differentiable manner.
  • two adjacent bands may share a same trajectory (band edge, for example) in one reflector.
  • an LED cluster may include a plurality of LED groups, wherein LEDs of different LED groups radiate in different colors and emit LEDs of a group in the same color.
  • the individual modules reflectors in combination with the light sources
  • the individual LED groups of a cluster such as built-in or coupled via optical fibers detectors or sensors allows safe operation of the lamp and the compensation of temperature or aging-related changes the electro-optical conversion efficiency of the LEDs by readjusting the driver currents.
  • the readjustment of the driver currents can be carried out separately for the individual LED groups of the LED clusters and in particular for each LED cluster in the case of an arrangement of a plurality of LED clusters in one field (such as, for example, the illumination system 700).
  • the light sources may comprise sensors.
  • Such a sensor can be arranged, for example, on the reflector surface 103 of the reflector 100. It has been found that a good position for a sensor is in a region of the reflector surface 103 of the reflector 100 in which the first band 111a of the front reflector 31 intersects the plane of symmetry of the reflector 100. Exemplary embodiments therefore provide a reflector 100 which has a sensor which is arranged in a region of the reflector surface 103 of the reflector 100, in which the first band 111a of the front reflector 31 in the direction of the central propagation direction 105 intersects the plane of symmetry of the reflector 100.
  • Such a sensor may in the simplest case be an optical fiber which is connected to a detector (such as a photodiode or an array of photodiodes).
  • the detector may, for example, be a color sensor which makes it possible to measure the emission of the individual LED groups of the LED cluster of a light source and to control their driver currents separately from one another.
  • a central control unit For weather-dependent and optional traffic and dependent on the ambient brightness control of the lights, a central control unit with suitable sensors via suitable communication channels such. Wireless or a wired connection to the respective lamp to be connected.
  • remote sensors and control units may adjust the light flux and radiation of the lighting system to the weather and optionally the traffic flow and ambient brightness.
  • lighting systems according to embodiments can adapt their radiation in addition to the weather-dependent adaptation also as a function of other environmental conditions. This adjustment can be made both by activating and deactivating individual LED clusters (for example from NASS or DRY modules) and by dimming (varying the driver currents) of the LED clusters.
  • embodiments of the present invention provide a reflector or reflective optics, for example for an LED street lamp.
  • FIG. 1 For example for such a street lamp.
  • a reflector 100, 701 a, 701 b emerged for a street lamp, with an opening 101, 101a, 101b for a lamp 3, 705a, 705b; and a reflector surface 103 extending away from the aperture 101, 101a, 101b in a central radiation direction 2, 105, without redirecting light of the luminous means 3, 705a, 705b along the central radiation direction 2, 105; wherein the reflector surface 103 is subdivided in the direction of the central emission direction 2, 105 into bands 109a to 109g, 111a to 111d, which continuously adjoin one another along band edges 113a to 113c; and wherein the band edges 113a-113c have at least a portion consisting of contiguously and differentially-attached curve segments 115a, 115b, the portion having a first point in which a curvature vector of the portion points inwardly and has a second point in which the curvature vector of the section points
  • a first curve segment of a first section of a band edge 113c and a second curve segment of a second section of the band edge 113c, which strikes the first section in a bending edge 117 of the reflector surface 103 have identical curve parameters, wherein the central emission direction 2, 105 is a normal of the band edge planes forms.
  • a first tangent of the curve segment at an initial point of the curve segment at least at an angle of Deviate 10 ° from a second tangent of the curve segment at an end point of the curve segment.
  • Angles between tangents at starting points of curve segments of band curves and tangents at end points of the curve segments can increase with decreasing distance of the curve segments to a symmetry plane of the reflector 100, 701 a, 701 b.
  • such a reflector may further comprise a front reflector 31, 731a, 731b and a rear reflector 32, 732a, 732b, the front reflector 31, 731a, 731b and the back reflector 32, 732a, 732b each having a band region they consist of bands 109a to 109g, 111a to 111d; and wherein an extension of the band region of the back reflector 32, 732a, 732b in the direction of the central emission direction 2, 105 is greater than an extension of the band region of the front reflector 31, 731a, 731b in the direction of the central emission direction 2, 105.
  • the front reflector 31, 731a, 731b have a reflector plate 33 which adjoins the band region of the front reflector 31, 731a, 731b and extends from the band region of the front reflector 31, 731a, 731b in the direction of the central emission direction 2, 105.
  • such a reflector may further comprise a front reflector 31, a back reflector 32 and a sensor, the sensor being disposed in a region of the reflector surface 103 in which a first band 111a of the front reflector in the direction of the central emission direction 105 31 and a symmetry plane of the reflector intersect.
  • a reflector assembly with a first such reflector 701a and a second such reflector 701 b was shown, wherein the first reflector 701 a has a first front reflector 731 a and a first rear reflector 732 a; the second reflector 701b having a second front reflector 731b and a second rear reflector 732b; and wherein the first front reflector 731a is equal to the second front reflector 731b and the first rear reflector 732a is different from the second rear reflector 732b.
  • An extension of the first return reflector 732a in the direction of the central emission direction 2, 105 of the first reflector 701a may be identical to an extension of the second return reflector 732b in the direction of the central emission direction 2, 105 of the second reflector 701b, but at least two bands of the first return reflector 732a have a different extent in the direction of the central emission direction 2, 105 of the first reflector 701a, than an extension of two corresponding bands of the second return reflector 32b in the direction of the central emission direction 2, 105 of the second reflector 701b.
  • a number of the bands of the first back reflector 732a may be equal to a number of the bands of the second back reflector 732b.
  • a lighting system 700 has also emerged from the above exemplary embodiments, with a first such reflector, a second such reflector, a first lighting means 705a, which is arranged in the opening 101a of the first reflector 701a, and a second lighting means 705b, which is located in the opening 101b of the second reflector 701b, the first reflector 701a being different from the second reflector 701b; and wherein the illumination system 700 is configured to apply only the second reflector 701b in response to an information signal describing an environmental condition for a first state of the environmental condition activate and for a second state of the environmental condition both the second reflector 701 b and the first reflector 701 a to activate.
  • first luminous means 705a and the second luminous means 705b as well as the first reflector 701a and the second reflector 701b can be arranged on a common carrier 703.
  • the illumination system could also have a control device that is configured to provide a further information signal in dependence on a further ambient condition, wherein the illumination system 700 is designed to use the first illumination means 705a as a function of the further information signal that describes the further ambient condition or to dim the second illuminant 705b.
  • the above embodiments also provide a lighting system arrangement having a plurality of such lighting systems; and a central control section configured to provide the information signal to the plurality of lighting systems depending on the environmental condition.

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

Claims (15)

  1. Réflecteur (100, 701a, 701b) pour un réverbère, aux caractéristiques suivantes:
    une ouverture (101, 101a, 101b) pour un moyen d'éclairage (3, 705a, 705b); et
    une surface de réflecteur (103) s'étendant dans une direction centrale de rayonnement (2, 105) s'éloignant de l'ouverture (101, 101a, 101b), sans renvoyer de la lumière du moyen d'éclairage (3, 705a, 705b) le long de la direction centrale de rayonnement (2, 105);
    dans lequel la surface de réflecteur (103) est subdivisée dans la direction centrale de rayonnement (2, 105) en bandes (109a à 109g, 111a à 111d) qui se raccordent l'une à l'autre le long de bords de bande (113a à 113c) de manière constante, mais non différentiable, de sorte qu'il se produise des points de flexion entre les bandes;
    dans lequel chaque bande (109a à 109g, 111a à 111d) présente un premier bord de bande et un deuxième bord de bande qui délimitent la bande (109a à 109g, 111a à 111d), les bords de bande étant disposés dans des plans de bord de bande parallèles entre eux;
    dans lequel chaque bord de bande (113a à 113c) présente au moins un segment composé de segments de courbe (115a, 115b) assemblés l'un à l'autre de manière continue et différentiable, dans lequel le segment présente un premier point où un vecteur de courbure du segment est dirigé vers l'intérieur et un deuxième point où le vecteur de courbure du segment est dirigé vers l'extérieur;
    dans lequel les segments de courbe (115a, 115b) de bords de bande adjacents (113a à 113c) sont associés l'un à l'autre;
    dans lequel la surface de réflecteur (103) présente, entre les points de début de deux segments de courbe associés l'un à l'autre et entre les points de fin de deux segments de courbe associés l'un à l'autre, chaque fois une ligne de connexion (116b, 116a), de sorte que les deux segments de courbe associés l'un à l'autre forment, ensemble avec les lignes de connexion (116a, 116b), le pourtour d'une surface de réflecteur partielle (53); et
    dans lequel les lignes de connexion (116a, 116b) sont des lignes droites.
  2. Réflecteur (100, 701a, 701b) selon la revendication 1,
    dans lequel les segments adjacents d'un bord de bande soit se rejoignent dans un bord de flexion (117) de la surface de réflecteur (103) ou se terminent à une face extérieure de la surface de réflecteur (103).
  3. Réflecteur (100, 701a, 701b) selon la revendication 1 ou 2,
    dans lequel un premier segment de courbe d'un premier segment d'un bord de bande (113c) et un deuxième segment de courbe d'un deuxième segment du bord de bande (113c) qui rejoint le premier segment dans un bord de flexion (117) de la surface de réflecteur (103) présentent des paramètres de courbe identiques.
  4. Réflecteur (100, 701a, 701b) selon l'une des revendications précédentes,
    dans lequel la direction centrale de rayonnement (2, 105) constitue une normale d'un plan dans lequel se trouve l'ouverture (101, 101a, 101b).
  5. Réflecteur (100, 701a, 701b) selon l'une des revendications précédentes,
    dans lequel les points de début et de fin des segments de courbe et les tangentes des segments de courbe sont optimisés sur ces derniers, pour obtenir une distribution angulaire spatiale sous forme d'aile de chauve-souris.
  6. Réflecteur (100, 701a, 701b) selon l'une des revendications précédentes,
    dans lequel les distances de bord de bande entre bords de bande adjacents augmentent au fur et à mesure qu'augmente la distance des bords de bande par rapport à l'ouverture (101, 101a, 101b).
  7. Réflecteur (100, 701a, 701b) présentant un réflecteur avant (31, 731a, 731b) selon l'une des revendications précédentes et un réflecteur arrière (32, 732a, 732b) selon l'une des revendications précédentes,
    dans lequel le réflecteur avant (31, 731a, 731b) est subdivisé en un premier nombre de bandes (111a à 111d) et le réflecteur arrière (32, 732a, 732b) en un deuxième nombre de bandes (109a à 109g), qui est différent du premier nombre de bandes (109a à 109g).
  8. Réflecteur (100, 701a, 701b) selon la revendication 7,
    dans lequel le réflecteur avant (31, 731a, 731b) ou le réflecteur arrière (32, 732a, 732b) présente un premier module partiel (31a, 32a) et un deuxième module partiel (31b, 32b), le premier module partiel (31a, 32a) et le deuxième module partiel (31b, 32b) étant symétriques l'un par rapport à l'autre,
    dans lequel les bords de flexion (117) de la surface de réflecteur (103) dans laquelle se rejoignent les segments adjacents de bords de bande (113c) du réflecteur avant (31, 731a, 731b) ou du réflecteur arrière ((32, 732a, 732b) s'étendent dans un plan de symétrie des modules partiels (31a, 31b, 32a, 32b) du réflecteur avant (31, 731a, 731b) ou du réflecteur arrière (32, 732a, 732b).
  9. Réflecteur (100, 701a, 701b) selon la revendication 7,
    dans lequel le réflecteur avant (31, 731a, 731 b) et le réflecteur arrière (32, 732a, 732b) présentent une surface limite commune qui se situe dans un plan limite qui est perpendiculaire aux plans de bord de bande dans lesquels s'étendent les bords de bande (113a à 113c),
    dans lequel le réflecteur avant (31, 731a, 731b) ou le réflecteur arrière (32, 732a, 732B) présente un premier module partiel (31a, 32a) et un deuxième module partiel (31b, 32b), le premier module partiel (31a, 32a) et le deuxième module partiel (31b, 32b) étant symétriques l'un par rapport à l'autre, et
    dans lequel un plan de symétrie des modules partiels (31a, 31b, 32a, 32b) du réflecteur avant (31, 731a, 731b) ou du réflecteur arrière (32, 732a, 732b) est perpendiculaire au plan limite et aux plans de bord de bande.
  10. Réflecteur (100, 701a, 701b) selon l'une des revendications précédentes,
    dans lequel les bords de bande présentent au moins un segment qui se compose de segments de cercle de rayons différents assemblés l'un à l'autre qui se fondent l'un dans l'autre de manière constante et différenciable.
  11. Réflecteur (100, 701a, 701b) selon l'une des revendications précédentes,
    dans lequel une première tangente d'un segment de courbe s'écarte à un point de début du segment de courbe d'au moins un angle de 10° d'une deuxième tangente du segment de courbe à un point de fin du segment de courbe.
  12. Système d'éclairage, aux caractéristiques suivantes:
    un réflecteur (100, 701a, 701b) selon l'une des revendications précédentes présentant un réflecteur avant (31, 731a, 731b) et un réflecteur arrière (32, 732a, 732b); et
    un moyen d'éclairage (5, 705a, 705b);
    dans lequel le réflecteur avant (31, 731a, 731b) et le réflecteur arrière (32, 732a, 732b) présentent une surface limite commune qui se situe dans un plan limite;
    dans lequel une extension du réflecteur (100, 701a, 701 b) dans une direction d'une interface entre le plan limite et un plan de bord de bande dans lequel s'étend un bord de bande est d'au moins 3,5 fois plus grande qu'une extension du moyen d'éclairage (5, 705a, 705b) le long de l'interface.
  13. Système d'éclairage, aux caractéristiques suivantes:
    un réflecteur (100, 701a, 701b) selon l'une des revendications 1 à 12; et
    un moyen d'éclairage (3, 705a, 705b);
    dans lequel la direction centrale de rayonnement (2, 105) est une direction centrale de rayonnement du moyen d'éclairage (3, 705a, 705b).
  14. Système d'éclairage, aux caractéristiques suivantes:
    un réflecteur (100, 701a, 701b) selon l'une des revendications 1 à 12;
    un moyen d'éclairage (3, 705a, 705b);
    dans lequel le moyen d'éclairage (3, 705a, 705b) présente une pluralité de groupes de DEL, où les DEL de différentes groupes de DEL rayonnent selon des couleurs différentes les DEL du même groupe de DEL rayonnent selon la même couleur; et
    dans lequel le système d'éclairage est réalisé pour détecter les luminosités des groupes de DEL individuels séparément l'une de l'autre et pour régler les courants d'attaque pour les différents groupes de DEL en fonction des luminosités détectées.
  15. Système d'éclairage (700), aux caractéristiques suivantes:
    un premier réflecteur selon l'une des revendications 1 à 12;
    un deuxième réflecteur selon l'une des revendications 1 à 12;
    un premier moyen d'éclairage (705a) disposé dans l'ouverture (101a) du premier réflecteur (701a); et
    un deuxième moyen d'éclairage (705b) disposé dans l'ouverture (101b) du deuxième réflecteur (701b);
    dans lequel le premier réflecteur (701a) est différent du deuxième réflecteur (701b); et
    dans lequel le système d'éclairage (700) est réalisé pour activer, en fonction d'un signal d'information qui décrit une condition d'environnement, pour un premier état de la condition d'environnement uniquement le deuxième réflecteur (701b) et pour activer, pour un deuxième état de la condition d'environnement, tant le deuxième réflecteur (701b) que le premier réflecteur (701a).
EP12727110.4A 2011-05-25 2012-05-23 Réflecteur pour réverbère Not-in-force EP2715218B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011102578 2011-05-25
DE102011081349A DE102011081349A1 (de) 2011-05-25 2011-08-22 Reflektor für eine strassenlampe
PCT/EP2012/059617 WO2012160101A2 (fr) 2011-05-25 2012-05-23 Réflecteur pour réverbère

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EP2715218A2 EP2715218A2 (fr) 2014-04-09
EP2715218B1 true EP2715218B1 (fr) 2016-07-06

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EP (1) EP2715218B1 (fr)
CN (1) CN103748409B (fr)
DE (1) DE102011081349A1 (fr)
WO (1) WO2012160101A2 (fr)

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EP3772610B1 (fr) 2019-08-06 2022-04-20 Nichia Corporation Dispositif d'éclairage

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US2422378A (en) * 1943-11-22 1947-06-17 California Inst Res Found Low-level reflector
US2578451A (en) * 1946-08-30 1951-12-11 Gen Electric Luminaire
US4789923A (en) * 1986-12-23 1988-12-06 Hubbell Incorporated Reflector for roadway lighting luminaire
US5345371A (en) * 1992-11-05 1994-09-06 Cunningham David W Lighting fixture
DE4431750A1 (de) * 1994-09-06 1996-03-07 Siemens Ag Ortsfeste Beleuchtungsanlage für Verkehrswege
DE19834195C2 (de) * 1998-07-29 2000-07-06 Siteco Beleuchtungstech Gmbh Außenleuchte mit einer Reflektoranordnung
DE19910192C2 (de) * 1999-03-09 2002-04-04 Schott Auer Gmbh Reflektor mit einem konkaven rotationssymmetrischen Grundkörper und einer Facetten aufweisenden Reflexionsfläche
JP2001167614A (ja) * 1999-12-08 2001-06-22 Koito Mfg Co Ltd 車両用標識灯
BE1014186A6 (fr) * 2001-05-18 2003-06-03 Financ Applic Elec Reflecteur de luminaire.
US6497500B1 (en) * 2001-11-16 2002-12-24 General Electric Company Asymmetric flood lighting reflector and apparatus for making same
DE102007016748A1 (de) * 2007-04-07 2008-10-09 Tetsuhiro Kano Reflektor für eine Leuchte
DE202008004790U1 (de) * 2008-04-04 2008-07-03 Semperlux Aktiengesellschaft - Lichttechnische Werke - Leuchte mit LED-Strahlern
NL2001447C2 (nl) * 2008-04-04 2009-10-06 Lightronics B V Straatverlichtingarmatuur en daarvan deel uitmakende reflector.
EP2233826B1 (fr) * 2009-03-17 2015-12-16 Thorn Europhane S.A. Unité d'éclairage et luminaire pour éclairage de route et/ou de rue

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DE102011081349A1 (de) 2012-11-29
EP2715218A2 (fr) 2014-04-09
WO2012160101A3 (fr) 2013-05-02
CN103748409A (zh) 2014-04-23
CN103748409B (zh) 2016-11-09
WO2012160101A2 (fr) 2012-11-29

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