EP0836046B1 - Aussenleuchte mit Sekundärtechnik - Google Patents
Aussenleuchte mit Sekundärtechnik Download PDFInfo
- Publication number
- EP0836046B1 EP0836046B1 EP96115856A EP96115856A EP0836046B1 EP 0836046 B1 EP0836046 B1 EP 0836046B1 EP 96115856 A EP96115856 A EP 96115856A EP 96115856 A EP96115856 A EP 96115856A EP 0836046 B1 EP0836046 B1 EP 0836046B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- curvature
- light
- elements
- luminaire according
- 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.)
- Expired - Lifetime
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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
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- 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
Definitions
- the invention relates to an outdoor lamp with secondary technology according to the preamble of claim 1.
- the principle of so-called Secondary technology has been widely used for a long time.
- the principle is always a light source through a primary reflector shielded for a viewer. That from the Light source emitted directly or indirectly via the primary reflector Light hits a secondary reflector from where it is emitted as useful light after repeated reflection becomes.
- this secondary technology is only used in exterior lighting used occasionally.
- an outdoor lamp known, on the A launcher unit in which the The light source and the primary reflector are shielded is.
- the light emitted upwards by the projector unit is directed against the underside of a flat roof reflector, the diffusely reflecting underside in this embodiment forms the actual secondary reflector.
- surface is a directional light distribution, as they are especially for universally applicable outdoor lights is to be requested only to a limited extent, e.g. possible by swiveling the roof reflector.
- the known lighting arrangement is designed so that the glowing perceived from a certain viewing distance Areas of the individual reflectors a predetermined maximum size do not exceed and adjacent lighting areas have a predetermined minimum distance from one another, so that they can be distinguished from one another by a viewer are.
- This is the known lighting arrangement for one Outdoor area specifically tailored to an application, in which the mentioned boundary conditions with regard to the sizes and distances of the individual reflectors perceivable by an observer in the form of luminous surfaces.
- the present invention is therefore based on the object for an outdoor lamp of the type mentioned in the beginning Embodiment to create an economical street lighting with the usual demands of one if possible high uniformity of luminance at the user level and a glare limitation that meets the regulations for enables road traffic.
- this solution according to the invention is the secondary reflector from a large number of reflector elements arranged in a grid composed, which are manufactured as individual elements and completely similar, especially in terms of their arch structure are trained.
- This arch structure exists - figuratively speaking - from a grid of each other vertical curvature contours of a first or a second type.
- each of these reflector elements assuming approximately perpendicular to the surface and bundled incident light completely different Light distribution characteristics in the two to each other and Center planes perpendicular to the base of the reflector elements.
- an outdoor lamp is shown schematically, at the so-called secondary technology is used.
- a projector unit 1 in which - how indicated by dash-dotted lines - a light source 11 as well as surrounding a primary reflector 12 so arranged are that all light emitted by the light source 11 passing through a light exit opening 13 of the launcher unit 1 is emitted upwards.
- a roof reflector 2 arranged in this Embodiment of roof struts 3 with the launcher unit 1 is connected.
- this reflector 2 shows the roof reflector 2 in a view from below shown. This view illustrates that on the bottom this reflector 2 is a secondary reflector at its center 4 is provided, which consists of a plurality of grid-shaped arranged reflector elements 41 assembled is.
- This secondary reflector takes over in the described exterior light with its reflector elements to be explained in more detail 41 essentially the light-guiding function, with which a certain radiation characteristic of the Outdoor lamp can be achieved.
- Glare leads to discomfort and insecurity for a driver and fatigue on the one hand and affects his Visual function on the other hand.
- Glare is essentially dependent on the light intensity of the outdoor lights in the radiation areas with a radiation angle measured against the vertical between 70 and 90 °, apart from other influencing parameters, like the adaptation luminance, the location of the Glow in the visual field and also the size of the glowing Surface. According to DIN 5044, the most important measure is therefore: Limitation of glare limits the light intensity the outdoor lights in this particular angular range, where light intensity limits are set for the C planes apply, in which the are at a beam angle of 80 ° radiated light intensity on the eye of the beholder is directed.
- the arrangement and configuration of the reflector elements 41 are conditional in total the light-guiding function of the secondary reflector 4 to achieve a desired light emission characteristic the outdoor light, the required Glare limitation should be met.
- the lighting of traffic routes play above all proportionally large distances of an observer from the shining lamp matter because of the charisma characteristics of outdoor lights be designed so that they are still at relatively high Beam angles have a high light intensity in order in this way realize relatively large luminaire spacing can.
- this case is schematic for an observer indicated, whose observation location in one there is a large distance B from the outside light.
- Figure 4 shows an example of this in the form of a schematic three-dimensional representation of a reflector element 41 with a square base, if in itself one rectangular base would be conceivable.
- the curved surface the reflector elements 41 can be separated from one another by two groups describe vertical curvature contours 45 or 46. All the first curvature contours 45 lie in each case in one of the xz planes; the second are accordingly Dome contours 46 aligned in one of the yz planes.
- section lines V / V or VI / VI in Figure 4 indicated, each a section along an xz plane or a yz plane through the reflector element shown Mark 41.
- C90-270 ° plane In the perpendicular to it C90-270 ° plane would be the light distribution at one above the Luminaire arranged in the middle of the street, preferably narrow beam with the requirement that the width of the traffic route should be as possible illuminate evenly without unwanted stray light falls on the areas next to the traffic route.
- the curvature contours 45 or 46 of the reflector elements 41 - first by way of example - explain.
- the surface of the secondary reflector is 4 facing the launcher unit 1, i.e. the curved surface of the reflector elements 41 faces the projector unit 1 opposite.
- the first curvature contour shown in FIG 45 assumed parallel to the C0-180 ° plane.
- this first curvature contour 45 is with respect to one Center axis mirror-symmetrical, which is why only one of the two contour halves is shown and viewed becomes. It begins in the vicinity of this axis with a circular arc section, whose vertex lies on the axis. On the outside, it goes into a tangential, empirically developed marginal area above that with decreasing Curvature becomes approximately rectilinear and at the same time opposite the center area drops relatively sharply.
- the first curvature contour 45 thus has a first contour area 51, which mainly the function of the reflector elements 41 determined with regard to small beam angles. Light that strikes this first contour area 51 is preferred and with relatively high uniformity reflected essentially against the direction of irradiation.
- the second contour area adjoining the outside 52 of the first curvature contour 45 is designed to be incident Direct light towards higher beam angles, but with high beam angles - for example in the area of 80 ° measured against the vertical - a clear limitation takes place. This enables the fully assembled Luminate the requirements of the glare limitation of outdoor lights according to DIN 5054.
- first curvature contours 45 to be regarded as continuous are between these two contour areas 51 and 52 a transition region 53 overlapping both, its deflecting function - with regard to the mounted outdoor light - still both in the vicinity of the outdoor light and already is to be assigned to the long-range area.
- the second ones shown in FIG. 6 run differently Curvature contours 46, their share parallel to the C90-270 ° plane is aligned.
- This contour profile is completely asymmetrical, begins with a circular arc at one edge extending area whose apex - deviating from the first curvature contour 45 - at a predetermined distance to this edge.
- the second Curvature contours 46 completely from a circular arc section to form, to optimize the charisma the reflector elements 41 can be in this plane but if necessary on this circular arc-shaped section, set tangentially, a second area with a preferably connect continuously decreasing curvature that approximates runs out linearly.
- the lateral offset of the vertex the curvature of the second curvature contour 46 with respect to the one of the edge sides of the reflector elements 41 helps that the reflector element 41 in the region of small beam angles the incident light with the highest possible uniformity reflected on both sides in the C90-270 ° plane.
- the intensity of light decreases due to the asymmetrical design of the second curvature contour 46 strong from.
- Reflector element 41 with a strongly asymmetrical Light distribution characteristic forms the basic element for the secondary reflector 4. It can with different orientation arranged in the grid of the secondary reflector 4 become. Since the functions of the individual reflector elements 41 of the secondary reflector 4 overlay, it is by individual Arrangement and orientation of the reflector elements 41 possible in the secondary reflector 4, with this certain light distribution characteristics to realize. To do this below easy to demonstrate is shown in Figure 4 an arrow 7 an orientation direction for the reflector elements 41 set as an example.
- the reflector elements 41 are with respect to a center line of the secondary reflector 4 in mirror image to one another arranged symmetrically.
- this arrangement of the reflector elements 41 can be a mirror image of symmetrical light distribution on the one hand, in the C0-180 ° plane, how will still be shown, but also in the C90-180 ° plane, however, the two light distribution curves differ from.
- This embodiment would be suitable for along one Lights arranged in the middle of the street.
- Figure 9 shows a third Possibility of orienting the reflector elements 41 in the Secondary reflector 4, in which the reflector elements in the four quadrants of the secondary reflector - viewed clockwise - are each rotated by 90 °. With this The arrangement of the reflector elements 41 can be essentially one rotationally symmetrical light distribution characteristic of the secondary reflector 4.
- the secondary reflector 4 is made up of individual Reflector elements 41 should be composed in a grid-like manner, are the arrangements of the reflector elements 41 according to the figures 7 to 9 to understand only as an example.
- the grid area of the secondary reflector 4 can easily be different Take shape. It can be square, rectangular or also be approximately circular. If desired, with a circular arrangement it would also be possible additionally provide correspondingly rounded edge elements.
- FIG. 10 is now schematic for those in Figures 7 and 8 shown arrangement of the reflector elements 41 in the secondary reflector 4 as an example of its corresponding light distribution characteristic shown in the C0-180 ° plane.
- This Example shows the individual contributions of the individual Reflector elements 41 for the light distribution characteristic of the secondary reflector 4. Overlay these individual parts themselves in the overall function of the secondary reflector 4, so that the averaged light distribution curve shown in FIG. 11 of the secondary reflector 4 in the C0-180 ° plane that gives a typical light distribution curve for an outdoor lamp with high light intensity in the area of larger beam angles represents, however, a clear Blenungsbegrenzung has the corresponding requirements according to DIN 5044.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
Claims (9)
- Außenleuchte in Sekundärtechnik mit einer Werfereinheit (1), die eine Lichtquelle (11) und einen Primärreflektor (12) umfaßt und mit einem der Werfereinheit in festem Abstand zugekehrten Dachreflektor (2), auf dessen Unterseite ein modular aufgebauter Sekundärreflektor (4) mit einzelnen, rasterförmig angeordneten Reflektorelementen (41) vorgesehen ist, dadurch gekennzeichnet, daß die in einer Vielzahl den Sekundärreflektor bildenden Reflektorelemente eine spiegelnde, doppelt konvex gewölbte Oberfläche mit je einer Schar von ersten und zweiten Wölbungskonturen (45 bzw. 46) aufweisen, daß die ersten Wölbungskonturen (45), in Querebenen des Reflektorelementes betrachtet, aus zwei zueinander symmetrischen Konturhälften mit jeweils vom gemeinsamen Scheitelpunkt nach außen abnehmenden Krümmung bestehen und daß die zweiten asymmetrisch gestreckten Wölbungskonturen (46), in zu den Querebenen senkrecht stehenden Längsebenen betrachtet, im wesentlichen eine kreisabschnittförmige Wölbung aufweisen, wobei alle Scheitelpunkte der zweiten Wölbungskonturen in einer definierten Querebene liegen, die bei vorgegebenem Abstand von der benachbarten Randseite des Reflektorelementes (41) außerhalb der Mitte des Reflektorelementes steht.
- Außenleuchte nach Anspruch 1, dadurch gekennzeichnet, daß die zweiten Wölbungskonturen (46) im scheitel fernen Randbereich jeweils in einen daran tangential anschließenden näherungsweise linearen Konturbereich übergehen.
- Außenleuchte nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die ersten Wölbungskonturen (45) der Reflektorelemente (41) derart ausgebildet sind, daß sie bei näherungsweise parallel und senkrecht auftreffendem Licht, in bezug auf die zugeordnete Querebene des Reflektorelementes betrachtet, bevorzugt eine Lichtausstrahlungscharakteristik mit hoher Gleichmäßigkeit für kleine Ausstrahlungswinkel gegen die Senkrechte aufweisen und bei höheren Ausstrahlungswinkeln mit hoher Lichtstärke abstrahlen, jedoch schon im Bereich von Ausstrahlungswinkeln etwa ab 80° gegen die Vertikale gemessen blendungsbegrenzend reflektieren und daß die zweiten Wölbungskonturen (46) derart ausgebildet sind, daß deren Lichtausstahlungscharakteristik, in der zugeordneten Längsbene des Reflektorelementes (41) betrachtet, bei gleichartigem Lichteinfall einseitig asymmetrisch bei ebenfalls hoher Gleichmäßigkeit für kleine Ausstrahlungswinkel gegen die Vertikale ist.
- Außenleuchte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Werfereinheit (1) und der Dachreflektor (2) in bezug auf eine Leuchtenzentralachse koaxial angeordnet sind.
- Außenleuchte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sekundärreflektor (4) einen im wesentlichen kreisförmigen Umriß aufweist, dessen Mittelpunkt mit dem Mittelpunkt des Dachreflektors (2) zusammenfällt.
- Außenleuchte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sekundärreflektor (4) einen im wesentlichen rechteckigen Umriß aufweist, dessen Mittelpunkt mit dem Mittelpunkt des Dachreflektors (2) zusammenfällt.
- Außenleuchte nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Reflektorelemente (41), beispielsweise eine Vorzugsrichtung ihrer Längsachsen als Orientierungsrichtung (Pfeil 7) bezeichnend, in dem Sekundärreflektor (4) mit der gleichen Orientierungsrichtung parallel zueinander angeordnet sind.
- Außenleuchte nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Reflektorelemente (41), beispielsweise eine Vorzugsrichtung ihrer Längsachsen als Orientierungsrichtung (Pfeil7) bezeichnend, bezüglich einer Symmetrielinie des Sekundärreflektors (4) zu deren beiden Seiten mit jeweils entgegengesetzter Orientierungsrichtung angeordnet sind.
- Außenleuchte nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Reflektorelemente (41), beispielsweise eine Vorzugsrichtung ihrer Längsachsen als Orientierungsrichtung (Pfeil 7) bezeichnend, bei einem in Quadranten unterteilten Sekundärreflektor (4) in den zueinander spiegelbildlich liegenden Quadranten mit jeweils entgegengesetzter Orientierungsrichtung angeordnet sind.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59602490T DE59602490D1 (de) | 1996-10-02 | 1996-10-02 | Aussenleuchte mit Sekundärtechnik |
AT96115856T ATE182396T1 (de) | 1996-10-02 | 1996-10-02 | Aussenleuchte mit sekundärtechnik |
EP96115856A EP0836046B1 (de) | 1996-10-02 | 1996-10-02 | Aussenleuchte mit Sekundärtechnik |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96115856A EP0836046B1 (de) | 1996-10-02 | 1996-10-02 | Aussenleuchte mit Sekundärtechnik |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0836046A1 EP0836046A1 (de) | 1998-04-15 |
EP0836046B1 true EP0836046B1 (de) | 1999-07-21 |
Family
ID=8223260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96115856A Expired - Lifetime EP0836046B1 (de) | 1996-10-02 | 1996-10-02 | Aussenleuchte mit Sekundärtechnik |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0836046B1 (de) |
AT (1) | ATE182396T1 (de) |
DE (1) | DE59602490D1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3710401A (en) * | 2000-02-29 | 2001-09-12 | Christian Bartenbach | Pole-mounted lamp |
FR2834329B1 (fr) * | 2001-12-28 | 2004-07-02 | Thorn Europhane Sa | Reflecteur secondaire a construction modulaire |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2707143A1 (de) * | 1977-02-18 | 1978-08-24 | Bartenbach Christian | Indirekte deckenleuchte |
DE9006883U1 (de) * | 1990-06-19 | 1990-08-23 | Siemens AG, 1000 Berlin und 8000 München | Reflektoranordnung |
DE4031302C2 (de) * | 1990-10-04 | 1996-04-11 | Bartenbach Christian | Beleuchtungsanordnung mit einer Lichtquelle und einer optischen Einrichtung |
EP0735311A1 (de) * | 1995-03-31 | 1996-10-02 | Siemens Aktiengesellschaft | Beleuchtungssystem für einen Innenraum |
-
1996
- 1996-10-02 DE DE59602490T patent/DE59602490D1/de not_active Expired - Lifetime
- 1996-10-02 AT AT96115856T patent/ATE182396T1/de active
- 1996-10-02 EP EP96115856A patent/EP0836046B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE182396T1 (de) | 1999-08-15 |
EP0836046A1 (de) | 1998-04-15 |
DE59602490D1 (de) | 1999-08-26 |
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