EP1632713B1 - Reflector for illuminating building areas - Google Patents
Reflector for illuminating building areas Download PDFInfo
- Publication number
- EP1632713B1 EP1632713B1 EP05017941A EP05017941A EP1632713B1 EP 1632713 B1 EP1632713 B1 EP 1632713B1 EP 05017941 A EP05017941 A EP 05017941A EP 05017941 A EP05017941 A EP 05017941A EP 1632713 B1 EP1632713 B1 EP 1632713B1
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- EP
- European Patent Office
- Prior art keywords
- reflector element
- segments
- light according
- curvature
- light
- 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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Classifications
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- 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
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- 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
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- 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
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- 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
- F21W2131/107—Outdoor lighting of the exterior of buildings
Definitions
- the invention relates first to a luminaire for illuminating building surfaces or building part surfaces, according to the preamble of claim 1.
- the known lamp has a reflector element made of aluminum, which is formed substantially parabolic.
- the reflector element is made of an aluminum blank, which is pressed in rotation against a pin (male). It has after performing the pressing an inner side, which is formed as a die, and on which the male has imaged.
- the known reflector element has a plurality of segments which each comprise a substantially planar surface. Both when viewed in the circumferential direction and when viewed from an edge region of the reflector element toward its apex region, a row of adjacent segments in each case form a polygonal line.
- the present invention seeks to further develop the known lamp such that a more homogeneous illumination of the building surface is possible.
- the invention solves the problem with the features of claim 1.
- the principle of the invention is thus essentially that, instead of using segments with substantially Plan surfaces that provide a reflection of the light emitted by the lamp outgoing light components in a conventional manner, now provide curved surfaces that fan out the individual light components or bundles targeted and thus can be uniform. In this way, it is possible to reduce the luminance on the reflector surface by distribution over a plurality of segments. In addition, a minimization of scattered light components is possible because the curved, in particular substantially spherically curved, segments can be particularly precisely predicted and correspondingly accurately formed.
- the luminaire according to the invention moreover allows a predeterminable radiation behavior of the luminaire by an appropriate choice of the radii of curvature of the surface of the segment.
- each segment is curved twice, and thus has a first and a second radius of curvature.
- the emission characteristics of the luminaire can be greatly influenced. Smaller radii lead to a larger fanning of a light beam and are therefore preferable to apply when the Lamp should be used as a floodlight, so a large area of a building part is to be illuminated. Larger radii of curvature fanned parallel beams of light less, and are therefore preferably used when the lamp is to be used as a spot light, and to illuminate a fairly narrow area, such as circular area, a building surface.
- the formulation according to which light, starting from the lamp, at least partially reaches the surface of the building or the part of the building to be illuminated only after reflection or scattering on the inside of the reflector element, means that direct light components from the lamp can also directly reach the surface of the building to be illuminated. However, significant light components, that is to say the predominant portion of the luminous flux emitted by the lamp, initially strike the inside of the reflector element.
- a building wall, a building ceiling or a building floor is referred to as the building surface or part of the building, and in the case of outdoor luminaires it is, of course, also possible to illuminate path areas or road areas.
- the luminaire according to the invention is fixed, preferably attached to a building surface or a building surface, but alternatively also to a mast or the like.
- an object arranged on a building surface eg a work of art
- the luminaire according to the invention for illuminating building surfaces or partial building areas can therefore also serve for object lighting, which is of interest in particular for luminaires designed as spot luminaires.
- the segments according to the preamble of claim 1 all such segments are understood, which are arranged, that are arranged according to a certain pattern or grid relative to each other.
- the segments can be arranged in any grid.
- a grid is used in which the segments are arranged substantially circular in the circumferential direction, wherein the number of segments of a circular ring as a function of the distance of the circular ring from a vertex area of the reflector element does not change but is constant. Consequently, there is also the possibility of arranging the segments as viewed in the direction from a region of the edge of the reflector element towards its vertex region essentially along a straight line, that is to say linearly.
- the reflector element is substantially rotationally symmetrical. This allows a particularly simple design and manufacture of the reflector element and a particularly homogeneous illumination of the building surfaces.
- the surface is doubly curved.
- the surface has a first curvature with a first radius and a second curvature with a second radius.
- the surface of each segment is thus substantially spherical.
- this is not necessarily the section of a spherical surface, but a domed in space surface, which is curved along two different radii of curvature.
- a spherical surface would only be considered as a special case if the first radius and the second radius were the same. This special case is covered by the invention.
- the Ausstrahl characterizing the luminaire can be determined very precisely beforehand. In particular, so that the building surface or building part surface can be illuminated in a particularly homogeneous.
- a plurality of facets are provided to a luminous body, which may be flat, spherical or cylindrical.
- the facets are designed in the known reflector such that a rotational symmetry of the facets, based on the optical axis of the reflector basic body, is largely avoided.
- the known reflector has a plurality of segments, which is arranged to form a group of segments along the circumference of the reflector element substantially circular. However, the segments of a group do not have a constant curvature in the known reflector, but differ in their shape and position from other facets extending over another peripheral region of the reflector.
- a lamp in the region of a focal point of the reflector element can be arranged, that is placeable. This allows a precisely predeterminable Ausstrahl characterizing the luminaire.
- a focal point near arrangement of a lamp is particularly advantageous if the reflector element is curved substantially parabolic.
- other shell-shaped basic shapes for the reflector element may be considered.
- the light sources are arranged at least near the focal point.
- the first radius and / or the second radius are different depending on the distance of the segment to a peak region of the reflector element. This allows a particularly accurate predetermination of the radiation characteristics of the lamp.
- two segments are arranged immediately adjacent to each other.
- the entire inside of the reflector element is thus composed of the surfaces of the individual segments. This reduces the luminance on the reflector surface and minimizes the stray light components.
- a plurality of groups of annularly arranged segments are arranged between a vertex region of the reflector element and a light outlet opening of the reflector element. This allows a particularly homogeneous illumination of the building surface.
- the emission characteristics of the lamp in this way in a particularly simple manner can be determined beforehand.
- the segments are arranged substantially linearly relative to the curved inside of the reflector element.
- the segments are thus arranged substantially along a straight line when a viewer looks into the interior of the reflector element substantially along the axis of rotation of the reflector element or along its longitudinal central axis.
- the segments are arranged along a curved path corresponding to the course of the inside of the Reflector element follows. This curved path connects the apex region of the reflector element with the free edge region of the reflector element by the shortest route.
- the size of the segments increases from a vertex area of the reflector element to a light exit opening of the reflector element. This allows complete equipment of the inside of the reflector element with segments.
- the entire inner surface of the reflector element is occupied by segments.
- the segments thus occupy the entire inner side of the reflector element from its free edge region up to the apex region, that is to say directly up to an opening through which the lamp or a base for the lamp is inserted.
- the number of segments in the circumferential direction is constant regardless of the distance of the segment from the apex region of the reflector element. This allows a particularly homogeneous illumination of the building surface or the building part surface.
- a collar is arranged in the region of an edge of the reflector element. This allows a particularly simple attachment of mounting holes.
- the reflector element is designated in its entirety in the figures with 10, wherein for the same parts or elements of the two different embodiments of the Figures 1 and 2 on the one hand and the FIGS. 3 to 6 on the other hand, for the sake of simplicity, the same reference numerals, partially with the addition of small letters are used.
- the Figures 1 and 2 show a substantially parabolically curved reflector element 10, which has a vertex area 11 and a free edge region 12.
- the axial distance between the apex region 11 and the free edge region 12, ie the height or peak height of the reflector element 10, is in Fig. 2 designated h 1 .
- the free edge region 12 of the reflector element surrounds a substantially circular light exit opening 20 of the diameter d 1 . This thus corresponds to the inner diameter d 1 of the reflector element 10 at its widest point.
- the reflector element 10 is expanded radially outwards and has a flange-like collar 13.
- a flange-like collar 13 On the flange-like collar 13, as best of Fig. 1 can be seen, two groove-like edge recesses 14a, 14b arranged, represent the mounting holes.
- fastening means such as screws, which partially pass through these edge recesses 14 a, 14 b, the reflector element on a not shown luminaire housing a light, also not shown are attached.
- the reflector element 10 is arranged for this purpose in a conventional manner in an interior of the lamp. In the assembled state of the lamp is typically the respect Fig. 2 upper side 30 of the flange-like collar 13 on a light housing-side contact surface, so that the flange-like collar 13, and thus the entire reflector element 10, can be clamped against this contact surface.
- an opening In the region of the vertex 11 of the reflector element 10 there is an opening, not shown in the figures, which is typically mounted in the form of an opening about the longitudinal central axis I of the reflector element 10 in the region of the vertex 11 thereof.
- the opening can be achieved, for example, by punching out or cutting out the apex area 11.
- a lamp is pushed through, so that the lamp 10 in the assembled state in the interior 21 of the reflector element 10, preferably approximately in the region of in Fig. 2 merely indicated sketched focal point 22 is located.
- the reflector element 10 has on its inside 27 a plurality of segments.
- Fig. 1 are circumferentially adjacent segments arranged by way of example denoted by the reference numerals 15a, 15b, 15c, 15d, it being understood that in the circumferential direction a total of eighty segments are provided, each forming an annular group.
- the segments extend from the free edge region 12 of the reflector element 10 all the way to the region of the vertex 11 FIG. 1 results, the segments are along arranged by straight lines 18. In total, there are, according to the number of segments in the circumferential direction, eighty different radiant lines 18, which, when viewed in the direction of the Fig. 1 extend from the apex 11 of the reflector element 10 toward its free edge 12. This results in a spider-web-like structure or a spider-web-like grid.
- FIG. 1 Exemplary are in FIG. 1 the segments 15a, 16a and 17a are shown, which are arranged along the straight line 18a.
- twenty segments extend from the apex region 11 of the reflector element 10 towards its free edge region 12.
- the lines 18, 18a are only visible when viewing the Fig. 1 Represent straight lines.
- the lines 18, 18a follow the parabolic basic shape of the reflector element 10, which in particular consists of Fig. 2
- the line 18 connects the free edge region 12 of the reflector element 10 by the shortest route to the apex region 11.
- Fig. 1 makes it clear that the reflector element 10 has a total of a concentric arrangement of annular groups of segments.
- a group of eighty segments immediately adjacent the free edge 12 of the reflector element 10 forms an annular group 29a of segments.
- Each group of segments has eighty segments.
- Each group 29a, 29b, 29c of segments is arranged along a circular line 28a, 28b, 28c. All circular lines 28, 28a, 28b, 28c are concentric circular lines.
- the entire inner side 27 of the reflector element 10 is occupied by segments (e.g., 15a, 15b, 15c, 15d, 16a, 17a).
- the inside of the reflector element 10 is thus composed completely of the individual curved surfaces 31a, 31b, 31c, 31d of the individual segments. Each segment thus has its own surface.
- FIGS. 3 and 4 show a further embodiment of the reflector element 10 according to the invention, which does not differ in terms of the number of segments. Again, there are eighty in the circumferential direction and twenty along a straight line.
- the reflector element 10 according to the FIGS. 3 and 4 has a height h 2 , which is identical to the height h 1 of the first embodiment.
- the inner diameter d 2 of the light exit opening 20 of the reflector element 10 is identical to the inner diameter d 1 of the first embodiment.
- the outer diameter a 2 of the reflector element 10 according to the FIGS. 3 and 4 identical to the outer diameter a 1 of the first embodiment. The same applies to the fastening receptacles 14a, 14b.
- Fig. 5 shows an enlarged section of the Fig. 4 which is located somewhere between the free edge area 12 and the vertex 11.
- the segments 15a, 15b, 15c, 15d of the outermost annular group 29a of segments are shown in FIG Fig. 5 by way of example in sectional view the segments 23a, 24a, 25a, 26a.
- the annular groups 29i, 29j, 29k, 29I, 29m, 29n, 29o of segments shows Fig. 5 in sections, the annular groups 29i, 29j, 29k, 29I, 29m, 29n, 29o of segments.
- FIG. 5 essentially represents a vertical section shows Fig. 6 a horizontal section through the reflector element 10.
- the circular ring-like group 29e is shown by segments.
- the circular ring-like groups 29f, 29g, 29h, 29i of segments as well as further annular groups.
- each segment has an essentially trapezoidal basic shape. While the two opposite sides 33a and 33b, which limit the segment 33 in the circumferential direction, are formed substantially the same length, the radially inner, ie the apex 11 facing side 34 of the segment 32 is shorter than the free edge region 12 facing side 35th this segment 32, so that there is a trapezoidal basic shape. It should be noted that this trapezoidal basic shape, of course, results only when viewing this segment 32 in plan view. The actual trapezoidal shape results only when the surface 36 of the segment 32 is projected onto a plane. Also in this consideration, the trapezoidal shape is only approximate to understand because, depending on the way in which the surface 36 of the segment 32 is curved, the projected area does not necessarily have to have straight edges.
- the surface 36 is curved twice.
- Fig. 5 which shows a first radius of curvature r 1
- Fig. 6 which indicates a second radius of curvature r 2 .
- Fig. 6 shows a radius of curvature r 2 in the section 29e of segments shown cut.
- the surfaces 31a, 31b, 31c, 31d of the associated segments 19a, 19b, 19c, 19d are curved by a corresponding radius of curvature r 2 , whereby this can not be represented graphically.
- the term r 2 ' indicates that it is a second radius of curvature r 2 , which describes a curvature of the surface of the segment, if one intersects the segment in the longitudinal direction, ie substantially transversely to the straight line laterally delimiting the segment 18.
- the second radius of curvature r 2 of the group 29e of segments is preferably different from the radius of curvature r 2 'of the group 29g of segments 19a, 19b, 19c, 19d.
- all segments of group 29e of segments have a radius of curvature r 2 that is constant.
- This radius of curvature r 2 defines a curvature of an associated surface 37 of a segment 38 about a curvature axis, not shown, which runs essentially parallel to the longitudinal central axis I of the reflector element 10.
- the segment 32 which is closer to the apex 11 of the reflector element 10 toward than the last considered segment 38 has a curvature about a radius r 2 , which corresponds to a curvature about a curvature axis, which can define a plane together with the longitudinal central axis I of the reflector element, which can represent a sectional plane for the reflector element, along which the reflector element in two in the Substantially identical halves by a longitudinal section approximately according to Fig. 4 can be cut.
- the family of axes of curvature includes those straight lines which intersect the central longitudinal axis or the axis of rotation I of the reflector element 10, the point of intersection with respect to FIG Fig. 2 is located above the apex region 11 of the reflector element 10.
- the radius r 2 of the group 29i of segments may be different from the radius r 2 of the group 29e of segments. It is advantageous if different groups 29a, 29b, 29c, 29e, 29f, 29g, 29h, 29i, 29j, 29k, 291, 29m, 29n, 29o have different radii r 2 , the different segments each of a group, eg the group 29e, have identical radii r 2 .
- the radius r 2 increases with the distance of the group 29 of segments from the vertex 11, for example continuously.
- Each surface of each segment is also curved along a further radius r 1 . This curvature is based on the Fig. 5 be clarified.
- the surface 40 of the segment 26a is curved in a radius r 1 about an axis of curvature 39 which is indicated only schematically.
- This curvature axis 39 is aligned substantially perpendicular to the longitudinal central axis I of the reflector element 10.
- segments of a group eg, group 291
- the individual segments of a group are of course curved around different axes of curvature 39, the crowd of the Curvature axes 39 of a group 291 of segments are all in a common plane.
- the longitudinal axis I represents the normal vector to this plane.
- Fig. 5 shows that the segments 23a, 24a, 25a, 26a, respectively, have surfaces with a corresponding radius of curvature r 1 .
- the individual radii of curvature r 1 of the different groups 29j, 29k, 29l, etc. of segments are different.
- both the first radius of curvature r 1 and the second radius of curvature r 2 increase depending on the distance of the corresponding segment to the apex area 11 of the reflector element 10, but are constant within an annular group 29 of segments.
- a first embodiment of a reflector element 10 according to the FIGS. 1 to 3 may comprise 1600 segments, each segment having a surface which is curved along two different radii r 1 and r 2 .
- the second embodiment of a reflector element 10 according to the FIGS. 3 to 6 has a corresponding number and arrangement of segments, wherein the individual segments, however, compared to the embodiment of Figures 1 and 2 have different curved surfaces of the segments with other radii r 1 , r 2 .
- the mounting grooves 14a, 14b are completely identical in the two different reflector elements.
- the same luminaire housing can therefore interchangeably with the same fasteners either the first embodiment of a reflector element according to Fig. 1 or alternatively, the second embodiment of a reflector element 10 according to Fig. 3 be fitted without requiring special retooling measures.
- beam angles in the range of 5 to 15 degrees are typically used for beam angles of a luminaire to be used as a spotlight and beam angles in the range of 50 to 70 degrees are used for flood applications.
- intermediate beam angle can be achieved, with the reflector element according to the invention also fine gradations or graduations are possible.
- the number of segments (eighty in the circumferential direction, twenty in the radial direction) set to 1600 in the embodiment is arbitrary.
- two interchangeable reflector elements with respect to their external dimensions such as height (h 1 , h 2 ), outer diameter (a 1 , a 2 ) and diameter (d 1 , d 2 ) are identical, but in terms of their number of segments differently.
- the reflector element 10 is preferably made of pressed aluminum.
- an aluminum blank ie a circular disk, is moved along a rotating pin, so that the pin (male) is imaged on the aluminum blank.
- the inside 27 of the reflector element 10 is completely free of undercuts.
- the reflector element 10 can therefore be easily removed from the male part due to a linear movement.
- the inside 27 is mirrored, so that special measures are unnecessary.
- the reflector element can also be formed, for example, by a plastic injection-molded part or a glass body element, which is provided with a reflective surface which, for example, is vapor-deposited.
Description
Die Erfindung betrifft zunächst eine Leuchte zur Ausleuchtung von Gebäudeflächen oder Gebäudeteilflächen, gemäß dem Oberbegriff des Anspruches 1.The invention relates first to a luminaire for illuminating building surfaces or building part surfaces, according to the preamble of claim 1.
Eine derartige Leuchte ist vor geraumer Zeit von der Anmelderin entwickelt worden und wird unter der Marke Parscan vertrieben. Die bekannte Leuchte weist ein Reflektorelement aus Aluminium auf, welches im Wesentlichen parabolförmig ausgebildet ist. Das Reflektorelement wird aus einer Aluminiumronde hergestellt, die rotierend gegen einen Zapfen (Patrize) gedrückt wird. Es weist nach Durchführung des Drückvorgangs eine Innenseite auf, die als Matrize ausgebildet ist, und auf der sich die Patrize abgebildet hat. Das bekannte Reflektorelement weist eine Vielzahl von Segmenten auf, die eine jeweils im Wesentlichen ebene Oberfläche umfassen. Sowohl bei Betrachtung in Umfangsrichtung als auch bei Betrachtung von einem Randbereich des Reflektorelementes hin zu seinem Scheitelbereich setzen sich jeweils eine Reihe benachbarter Segmente zu einem Polygonzug zusammen.Such a luminaire has long been developed by the Applicant and is sold under the trademark Parscan. The known lamp has a reflector element made of aluminum, which is formed substantially parabolic. The reflector element is made of an aluminum blank, which is pressed in rotation against a pin (male). It has after performing the pressing an inner side, which is formed as a die, and on which the male has imaged. The known reflector element has a plurality of segments which each comprise a substantially planar surface. Both when viewed in the circumferential direction and when viewed from an edge region of the reflector element toward its apex region, a row of adjacent segments in each case form a polygonal line.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, die bekannte Leuchte derartig weiterzubilden, das eine homogenere Ausleuchtung der Gebäudefläche möglich wird.Based on this prior art, the present invention seeks to further develop the known lamp such that a more homogeneous illumination of the building surface is possible.
Die Erfindung löst die Aufgabe mit den Merkmalen des Anspruches 1.The invention solves the problem with the features of claim 1.
Das Prinzip der Erfindung besteht somit im Wesentlichen darin, anstelle einer Verwendung von Segmenten mit im Wesentlichen planen Oberflächen, die für eine Reflektion der von der Lampe ausgehenden Lichtanteile auf herkömmliche Weise sorgen, nunmehr gewölbte Oberflächen vorzusehen, die die einzelnen Lichtanteile oder Strahlenbündel gezielt auffächem und damit vergleichmäßigen können. Auf diese Weise gelingt es, die Leuchtdichten auf der Reflektoroberfläche durch Verteilung auf eine Vielzahl von Segmenten zu reduzieren. Außerdem wird eine Minimierung von Streulichtanteilen möglich, da die gewölbten, insbesondere im Wesentlichen sphärisch gewölbten, Segmente besonders präzise vorherbestimmbar und entsprechend exakt ausgebildet sein können.The principle of the invention is thus essentially that, instead of using segments with substantially Plan surfaces that provide a reflection of the light emitted by the lamp outgoing light components in a conventional manner, now provide curved surfaces that fan out the individual light components or bundles targeted and thus can be uniform. In this way, it is possible to reduce the luminance on the reflector surface by distribution over a plurality of segments. In addition, a minimization of scattered light components is possible because the curved, in particular substantially spherically curved, segments can be particularly precisely predicted and correspondingly accurately formed.
Während bei der Verwendung von im Wesentlichen ebenen Reflektionsflächen eine Reflektion gemäß dem Reflektionsgesetz nach Euklid stattfindet, wonach der auf diese Oberfläche auffallende Lichtstrahl einen Ausfallwinkel aufweist, der dem Einfallwinkel entspricht, wird beim Auftreffen eines parallelen Strahlenbündels auf eine gekrümmte oder gewölbte Oberfläche, z.B. auf eine Kugeloberfläche, eine divergierende Reflektion stattfinden. Dies hat zur Folge, dass die Leuchtdichte eines einzelnen Segmentes mit einer gewölbten Oberfläche geringer ist, als bei einem vergleichbaren Segment mit einer im Wesentlichen ebenen Fläche.While using substantially flat reflecting surfaces, reflection takes place according to Euclid's law of reflection, according to which the light beam incident on this surface has a projection angle corresponding to the angle of incidence, when a parallel beam strikes a curved or curved surface, e.g. take place on a spherical surface, a divergent reflection. This has the consequence that the luminance of a single segment with a curved surface is lower than in a comparable segment with a substantially flat surface.
Dies führt insgesamt auch zu einer homogen ausgeleuchteten Gebäudefläche oder Gebäudeteilfläche.Overall, this leads to a homogeneously illuminated building surface or part of the building.
Die erfindungsgemäße Leuchte ermöglicht darüber hinaus ein vorherbestimmbares Abstrahlverhalten der Leuchte durch eine entsprechende Wahl der Krümmungsradien der Oberfläche des Segmentes. Hierzu ist jedes Segment zweifach gekrümmt, und weist somit einen ersten und einen zweiten Krümmungsradius auf. Durch Wahl dieser beiden Krümmungsradien kann die Abstrahlcharakteristik der Leuchte stark beeinflusst werden. Kleinere Radien führen zu einer größeren Auffächerung eines Lichtbündels und sind daher vorzugsweise anzuwenden, wenn die Leuchte als Fluter eingesetzt werden soll, mithin ein großer Flächenbereich eines Gebäudeteils ausgeleuchtet werden soll. Größere Krümmungsradien fächern parallele Lichtstrahlen weniger stark auf, und werden daher vorzugsweise verwendet, wenn die Leuchte als Spot-Leuchte eingesetzt werden soll, und einen recht eng begrenzten Bereich, z.B. kreisförmigen Bereich, einer Gebäudefläche ausleuchten soll.The luminaire according to the invention moreover allows a predeterminable radiation behavior of the luminaire by an appropriate choice of the radii of curvature of the surface of the segment. For this purpose, each segment is curved twice, and thus has a first and a second radius of curvature. By choosing these two radii of curvature, the emission characteristics of the luminaire can be greatly influenced. Smaller radii lead to a larger fanning of a light beam and are therefore preferable to apply when the Lamp should be used as a floodlight, so a large area of a building part is to be illuminated. Larger radii of curvature fanned parallel beams of light less, and are therefore preferably used when the lamp is to be used as a spot light, and to illuminate a fairly narrow area, such as circular area, a building surface.
Die Formulierung, wonach Licht ausgehend von der Lampe zumindest teilweise erst nach Reflektion oder Streuung an der Innenseite des Reflektorelementes zu der auszuleuchtenden Gebäudefläche oder der Gebäudeteilfläche gelangt, besagt, dass auch direkte Lichtanteile von der Lampe unmittelbar auf die auszuleuchtende Gebäudefläche gelangen können. Wesentliche Lichtanteile, also der überwiegende Anteil des von der Lampe ausgesandten Lichtstromes, trifft jedoch zunächst auf die Innenseite des Reflektorelementes.The formulation according to which light, starting from the lamp, at least partially reaches the surface of the building or the part of the building to be illuminated only after reflection or scattering on the inside of the reflector element, means that direct light components from the lamp can also directly reach the surface of the building to be illuminated. However, significant light components, that is to say the predominant portion of the luminous flux emitted by the lamp, initially strike the inside of the reflector element.
Als Gebäudefläche oder Gebäudeteilfläche wird insbesondere eine Gebäudewand, eine Gebäudedecke oder ein Gebäudeboden bezeichnet, wobei im Falle von Außenleuchten selbstverständlich auch Wegbereiche oder Straßenbereiche ausgeleuchtet werden können. Die erfindungsgemäße Leuchte ist ortsfest, vorzugsweise an einer Gebäudefläche oder einer Gebäudeteitfläche, alternativ aber auch an einen Mast oder dergleichen angebracht.In particular, a building wall, a building ceiling or a building floor is referred to as the building surface or part of the building, and in the case of outdoor luminaires it is, of course, also possible to illuminate path areas or road areas. The luminaire according to the invention is fixed, preferably attached to a building surface or a building surface, but alternatively also to a mast or the like.
Als Gebäudefläche oder Gebäudeteilfläche im Sinne der vorliegenden Patentanmeldung wird auch ein an einer Gebäudefläche angeordnetes Objekt, z.B. ein Kunstwerk, angesehen. Die erfindungsgemäße Leuchte zur Ausleuchtung von Gebäudeflächen oder Gebäudeteilflächen kann also auch der Objektbeleuchtung dienen, die insbesondere bei als Spot-Leuchten ausgebildeten Leuchten von Interesse ist.As a building surface or part of a building within the meaning of the present patent application, an object arranged on a building surface, eg a work of art, is also considered. The luminaire according to the invention for illuminating building surfaces or partial building areas can therefore also serve for object lighting, which is of interest in particular for luminaires designed as spot luminaires.
Als strukturierte Anordnung der Segmente gemäß dem Oberbegriff des Anspruches 1 werden alle solche Segmente verstanden, die geordnet, also nach einem bestimmten Muster oder Raster relativ zueinander angeordnet sind. Die Segmente können dabei in einem beliebigen Raster angeordnet sein. Ein derartiges Raster ist allerdings erforderlich, um die gewünschte Abstrahlcharakteristik der Leuchte zu erreichen. Vorzugsweise wird ein Raster verwendet, bei dem die Segmente in Umfangsrichtung im Wesentlichen kreisringartig angeordnet sind, wobei sich die Zahl der Segmente eines Kreisringes in Abhängigkeit von dem Abstand des Kreisringes von einem Scheitelbereich des Reflektorelementes nicht ändert sondern konstant ist. Demzufolge besteht auch die Möglichkeit, die Segmente bei Betrachtung in Richtung von einem Bereich des Randes des Reflektorelementes hin zu seinem Scheitelbereich im Wesentlichen entlang einer Geraden, also linear anzuordnen.As a structured arrangement of the segments according to the preamble of claim 1, all such segments are understood, which are arranged, that are arranged according to a certain pattern or grid relative to each other. The segments can be arranged in any grid. However, such a grid is required to achieve the desired radiation characteristics of the lamp. Preferably, a grid is used in which the segments are arranged substantially circular in the circumferential direction, wherein the number of segments of a circular ring as a function of the distance of the circular ring from a vertex area of the reflector element does not change but is constant. Consequently, there is also the possibility of arranging the segments as viewed in the direction from a region of the edge of the reflector element towards its vertex region essentially along a straight line, that is to say linearly.
Das Reflektorelement ist im Wesentlichen rotationssymmetrisch ausgebildet. Dies ermöglicht eine besonders einfache Bauform und Herstellung des Reflektorelementes sowie eine besonders homogene Ausleuchtung der Gebäudeflächen.The reflector element is substantially rotationally symmetrical. This allows a particularly simple design and manufacture of the reflector element and a particularly homogeneous illumination of the building surfaces.
Die Oberfläche ist zweifach gekrümmt. Insbesondere weist die Oberfläche eine erste Krümmung mit einem ersten Radius und eine zweite Krümmung mit einem zweiten Radius auf. Die Oberfläche jedes Segmentes ist somit im Wesentlichen sphärisch ausgebildet. Es handelt sich dabei aber nicht zwingend um den Abschnitt einer Kugeloberfläche, sondern um eine im Raum gewölbte Oberfläche, die entlang zwei unterschiedlicher Krümmungsradien gewölbt ist. Eine Kugeloberfläche käme nur als Sonderfall in Betracht, wenn der erste Radius und der zweite Radius gleich wären. Dieser Sonderfall ist aber von der Erfindung mit umfasst.The surface is doubly curved. In particular, the surface has a first curvature with a first radius and a second curvature with a second radius. The surface of each segment is thus substantially spherical. However, this is not necessarily the section of a spherical surface, but a domed in space surface, which is curved along two different radii of curvature. A spherical surface would only be considered as a special case if the first radius and the second radius were the same. This special case is covered by the invention.
Durch Berechnung und Vorherbestimmung dieser beiden unterschiedlichen Krümmungsradien, die mit dem Abstand des Seamentes von dem Scheitelbereich des Reflektorelementes zunehmen, kann die Ausstrahlcharakteristik der Leuchte sehr präzise vorher bestimmt werden. Insbesondere kann damit die Gebäudefläche oder Gebäudeteilfläche in besonderem Maße homogen ausgeleuchtet werden.By calculation and predetermination of these two different radii of curvature, which coincide with the Distance of the Seamentes increase from the apex area of the reflector element, the Ausstrahlcharakteristik the luminaire can be determined very precisely beforehand. In particular, so that the building surface or building part surface can be illuminated in a particularly homogeneous.
Aus der
Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist eine Lampe im Bereich eines Brennpunktes des Reflektorelementes anordenbar, also platzierbar. Diese ermöglicht eine genau vorherbestimmbare Ausstrahlcharakteristik der Leuchte. Schließlich ist eine derartige brennpunktnahe Anordnung einer Lampe besonders dann vorteilhaft, wenn das Reflektorelement im Wesentlichen parabolförmig gewölbt ist. Neben einem parabolförmig ausgebildeten Reflektorelement können auch andere schalenförmigen Grundformen für das Reflektorelement in Betracht kommen. Selbstverständlich können auch mehrere Lampen innerhalb des Reflektorelementes angeordnet werden. Entscheidend ist, dass die Lichtquellen zumindest in der Nähe des Brennpunktes angeordnet werden.According to an advantageous embodiment of the invention, a lamp in the region of a focal point of the reflector element can be arranged, that is placeable. This allows a precisely predeterminable Ausstrahlcharakteristik the luminaire. Finally, such a focal point near arrangement of a lamp is particularly advantageous if the reflector element is curved substantially parabolic. In addition to a parabolic shaped reflector element, other shell-shaped basic shapes for the reflector element may be considered. Of course can also be arranged several lamps within the reflector element. It is crucial that the light sources are arranged at least near the focal point.
Vorzugsweise sind der erste Radius und/oder der zweite Radius in Abhängigkeit vom Abstand des Segmentes zu einem Scheitelbereich des Reflektorelementes unterschiedlich. Dies ermöglicht eine besonders exakte Vorherbestimmung der Abstrahlcharakteristik der Leuchte.Preferably, the first radius and / or the second radius are different depending on the distance of the segment to a peak region of the reflector element. This allows a particularly accurate predetermination of the radiation characteristics of the lamp.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung sind jeweils zwei Segmente einander unmittelbar benachbart angeordnet. Die gesamte Innenseite des Reflektorelementes wird damit aus den Oberflächen der einzelnen Segmente zusammengesetzt. Dies verringert die Leuchtdichten auf der Reflektoroberfläche und minimiert die Streulichtanteile.According to a further advantageous embodiment of the invention, two segments are arranged immediately adjacent to each other. The entire inside of the reflector element is thus composed of the surfaces of the individual segments. This reduces the luminance on the reflector surface and minimizes the stray light components.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung sind zwischen einem Scheitelbereich des Reflektorelementes und einer Lichtaustrittöffnung des Reflektorelementes mehrere Gruppen kreisringartig angeordneter Segmente angeordnet. Dies ermöglicht eine besonders homogene Ausleuchtung der Gebäudefläche. Zudem ist die Abstrahlcharakteristik der Leuchte auf diese Weise in besonders einfacher Weise vorher bestimmbar.According to a further advantageous embodiment of the invention, a plurality of groups of annularly arranged segments are arranged between a vertex region of the reflector element and a light outlet opening of the reflector element. This allows a particularly homogeneous illumination of the building surface. In addition, the emission characteristics of the lamp in this way in a particularly simple manner can be determined beforehand.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung sind die Segmente bezogen auf die gewölbte Innenseite des Reflektorelementes im Wesentlichen linear angeordnet. Die Segmente sind somit im Wesentlichen entlang einer Gerade angeordnet, wenn ein Betrachter im Wesentlichen entlang der Rotationsachse des Reflektorelementes oder entlang dessen Längsmittelachse in dessen Innenraum hineinblickt. Tatsächlich sind die Segmente, da die Innenseite des Reflektorelementes selbst gewölbt ist, entlang einer gekrümmten Bahn angeordnet, die dem Verlauf der Innenseite des Reflektorelementes folgt. Diese gekrümmte Bahn verbindet dabei den Scheitelbereich des Reflektorelementes mit dem freien Randbereich des Reflektorelementes auf kürzestem Wege.According to a further advantageous embodiment of the invention, the segments are arranged substantially linearly relative to the curved inside of the reflector element. The segments are thus arranged substantially along a straight line when a viewer looks into the interior of the reflector element substantially along the axis of rotation of the reflector element or along its longitudinal central axis. In fact, since the inside of the reflector element itself is curved, the segments are arranged along a curved path corresponding to the course of the inside of the Reflector element follows. This curved path connects the apex region of the reflector element with the free edge region of the reflector element by the shortest route.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung nimmt die Größe der Segmente von einem Scheitelbereich des Reflektorelementes zu einer Lichtaustrittsöffnung des Reflektorelementes hin zu. Dies ermöglicht eine vollständige Ausstattung der Innenseite des Reflektorelementes mit Segmenten.According to a further advantageous embodiment of the invention, the size of the segments increases from a vertex area of the reflector element to a light exit opening of the reflector element. This allows complete equipment of the inside of the reflector element with segments.
In diesem Zusammenhang ist anzumerken, dass vorteilhafterweise die gesamte Innenfläche des Reflektorelementes mit Segmenten besetzt ist. Die Segmente besetzen somit die gesamte Innenseite des Reflektorelementes von dessen freiem Randbereich hin bis zu dem Scheitelbereich, also bis unmittelbar heran an eine Öffnung, durch die hindurch die Lampe oder ein Sockel für die Lampe gesteckt ist. Weiter vorzugsweise ist die Zahl der Segmente in Umfangsrichtung unabhängig von dem Abstand des Segmentes von dem Scheitelbereich des Reflektorelementes konstant. Dies ermöglicht eine besonders homogene Ausleuchtung der Gebäudefläche oder der Gebäudeteilfläche.In this context, it should be noted that advantageously the entire inner surface of the reflector element is occupied by segments. The segments thus occupy the entire inner side of the reflector element from its free edge region up to the apex region, that is to say directly up to an opening through which the lamp or a base for the lamp is inserted. Further preferably, the number of segments in the circumferential direction is constant regardless of the distance of the segment from the apex region of the reflector element. This allows a particularly homogeneous illumination of the building surface or the building part surface.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist im Bereich eines Randes des Reflektorelementes ein Kragen angeordnet. Dies ermöglicht eine besonders einfache Anbringung von Befestigungsöffnungen.According to a further advantageous embodiment of the invention, a collar is arranged in the region of an edge of the reflector element. This allows a particularly simple attachment of mounting holes.
Weitere Vorteile der Erfindung ergeben sich anhand der nicht zitierten Unteransprüche sowie aus der nun folgenden Beschreibung zweier in den Figuren dargestellter Ausführungsbeispiele. Darin zeigen:
- Fig. 1
- in schematischer Untenansicht gemäß Ansichtspfeil I in
Fig. 2 ein erstes Reflektorelement mit einer Vielzahl von Segmenten mit gewölbten Oberflächen, - Fig. 2
- das Ausführungsbeispiel der
Fig. 1 in teilgeschnittener Ansicht gemäß Schnittlinie II-II inFig. 1 , - Fig. 3
- ein zweites Ausführungsbeispiel eines erfindungsgemäßen Reflektorelementes in einer Darstellung gemäß
Fig. 1 , - Fig. 4
- das Ausführungsbeispieles der
Fig. 3 in einer Darstellung gemäßFig. 2 , etwa entlang der Schnittlinie IV-IV inFig. 3 , - Fig. 5
- in vergrößerter Darstellung einen Ausschnitt aus
Figur 4 , etwa gemäß dem Ausschnitts-Rechteck V, und - Fig. 6
- in teilgeschnittener, vergrößerter Darstellung das Ausführungsbeispiel der
Fig. 4 etwa entlang der Schnittlinie VI-VI inFig. 4 .
- Fig. 1
- in a schematic bottom view according to arrow I in
Fig. 2 a first reflector element having a plurality of segments with curved surfaces, - Fig. 2
- the embodiment of
Fig. 1 in a sectioned view according to section line II-II inFig. 1 . - Fig. 3
- A second embodiment of a reflector element according to the invention in a representation according to
Fig. 1 . - Fig. 4
- the embodiment of the
Fig. 3 in a representation according toFig. 2 , approximately along the section line IV-IV inFig. 3 . - Fig. 5
- in an enlarged view a section of
FIG. 4 , approximately according to the cut-out rectangle V, and - Fig. 6
- in a partially sectioned, enlarged view of the embodiment of the
Fig. 4 approximately along the section line VI-VI inFig. 4 ,
Das Reflektorelement wird in seiner Gesamtheit in den Figuren mit 10 bezeichnet, wobei für gleiche Teile oder Elemente der beiden unterschiedlichen Ausführungsbeispiele der
Die
Im Bereich des freien Randes 12 ist das Reflektorelement 10 radial nach außen erweitert und weist einen flanschartigen Kragen 13 auf. An dem flanschartigen Kragen 13 sind, wie am besten aus
Alternativ sind selbstverständlich auch andere Befestigungsarten möglich.Alternatively, of course, other types of attachment are possible.
Im Bereich des Scheitels 11 des Reflektorelementes 10 befindet sich ein in den Figuren nicht dargestellter Durchbruch, der typischerweise in Form einer Öffnung um die Längsmittelachse I des Reflektorelementes 10 herum im Bereich dessen Scheitel 11 angebracht wird. Die Öffnung kann beispielsweise durch ausstanzen oder ausschneiden des Scheitelbereiches 11 erreicht werden. Durch diese nicht dargestellte Öffnung hindurch wird eine Lampe durchgesteckt, so das sich die Lampe 10 im montierten Zustand in dem Innenraum 21 des Reflektorelementes 10, vorzugsweise etwa im Bereich des in
Das Reflektorelement 10 weist an seiner Innenseite 27 eine Vielzahl von Segmenten auf. In
Die Segmente erstrecken sich von dem freien Randbereich 12 des Reflektorelementes 10 bis hin in den Bereich des Scheitels 11. Wie sich insbesondere aus
Beispielhaft sind in
Jede Gruppe 29a, 29b, 29c von Segmenten ist entlang einer Kreislinie 28a, 28b, 28c angeordnet. Sämtliche Kreislinien 28, 28a, 28b, 28c sind konzentrische Kreislinien.Each
Die gesamte Innenseite 27 des Reflektorelementes 10 ist mit Segmenten (z.B. 15a, 15b, 15c, 15d, 16a, 17a) besetzt. Die Innenseite des Reflektorelementes 10 setzt sich somit vollständig aus den einzelnen gewölbten Oberflächen 31a, 31b, 31c, 31d der einzelnen Segmente zusammen. Jedes Segment weist somit seine eigene Oberfläche auf.The entire
Die
Der entscheidende Unterschied zwischen dem Reflektorelement 10 der
Während
Beispielhaft soll anhand des Segmentes 32 verdeutlicht werden, dass jedes Segment eine im Wesentlichen trapezförmige Grundform aufweist. Während die beiden einander gegenüberliegenden Seiten 33a und 33b, die das Segment 33 im Umfangsrichtung begrenzen, im Wesentlichen gleichlang ausgebildet sind, ist die radial innere, also die dem Scheitel 11 zugewandte Seite 34 des Segmentes 32 kürzer als die dem freien Randbereich 12 zugewandte Seite 35 dieses Segmentes 32, so dass sich eine trapezförmige Grundform ergibt. Angemerkt sei, dass sich diese trapezförmige Grundform selbstverständlich nur bei Betrachtung dieses Segmentes 32 in Draufsicht ergibt. Die tatsächliche Trapezform ergibt sich erst dann, wenn die Oberfläche 36 des Segmentes 32 auf eine Ebene projiziert wird. Auch bei dieser Betrachtung ist die Trapezform lediglich näherungsweise zu verstehen, da, je nachdem auf welche Weise die Oberfläche 36 des Segmentes 32 gewölbt ist, die projizierte Fläche nicht unbedingt gerade Kanten aufweisen muss.By way of example, it should be clarified on the basis of the segment 32 that each segment has an essentially trapezoidal basic shape. While the two
Die Oberfläche 36 ist zweifach gekrümmt. Um die beiden Krümmungen zu verdeutlichen, wird einerseits auf
Der den Oberflächen 31a, 31b, 31c, 31d der Segmente 19a, 19b, 19c, 19d zugehörige Krümmungsradius r2' ist in
Anzumerken ist, dass der zweite Krümmungsradius r2 der Gruppe 29e von Segmenten vorzugsweise unterschiedlich ist von dem Krümmungsradius r2' der Gruppe 29g von Segmenten 19a, 19b, 19c, 19d.It should be noted that the second radius of curvature r 2 of the
Von Bedeutung ist, dass sämtliche Segmente der Gruppe 29e von Segmenten einen Krümmungsradius r2 aufweisen, der konstant ist. Dieser Krümmungsradius r2 definiert eine Krümmung einer zugehörigen Oberfläche 37 eines Segmentes 38 um eine nicht dargestellte Krümmungsachse, die im Wesentlichen parallel zur Längsmittelachse I des Reflektorelementes 10 verläuft.Significantly, all segments of
Auch das Segment 32, welches dem Scheitelpunkt 11 des Reflektorelementes 10 hin näher benachbart ist als das zuletzt betrachtete Segment 38 weist eine Krümmung um einen Radius r2 auf, der einer Krümmung um eine Krümmungsachse entspricht, die gemeinsam mit der Längsmittelachse I des Reflektorelementes eine Ebene definieren kann, die eine Schnittebene für das Reflektorelement darstellen kann, entlang derer das Reflektorelement in zwei im Wesentlichen identische Hälften durch einen Längsschnitt etwa gemäß
Der Radius r2 der Gruppe 29i von Segmenten kann sich von dem Radius r2 der Gruppe 29e von Segmenten unterscheiden. Vorteilhaft ist, wenn unterschiedliche Gruppen 29a, 29b, 29c, 29e, 29f, 29g, 29h, 29i, 29j, 29k, 291, 29m, 29n, 29o unterschiedliche Radien r2 aufweisen, wobei die unterschiedlichen Segmente jeweils einer Gruppe, z.B. der Gruppe 29e, identische Radien r2 aufweisen. Der Radius r2 nimmt mit dem Abstand der Gruppe 29 von Segmenten vom Scheitel 11 zu, beispielsweise kontinuierlich zu.The radius r 2 of the
Jede Oberfläche jedes Segmentes ist darüber hinaus noch entlang einem weiteren Radius r1 gekrümmt. Diese Krümmung soll anhand der
So ist beispielsweise die Oberfläche 40 des Segmentes 26a in einem Radius r1 um eine lediglich schematisch angedeutete Krümmungsachse 39 gekrümmt. Diese Krümmungsachse 39 ist im Wesentlichen senkrecht zu der Längsmittelachse I des Reflektorelementes 10 ausgerichtet. Vorteilhafterweise sind jeweils Segmente einer Gruppe, z.B. der Gruppe 291, mit dem gleichen Radius r1 gekrümmt. Die einzelnen Segmente einer Gruppe, z.B. der Gruppe 29l, sind dabei selbstverständlich um unterschiedliche Krümmungsachsen 39 gekrümmt, wobei die Schar der Krümmungsachsen 39 einer Gruppe 291 von Segmenten sämtlich in einer gemeinsamen Ebene liegen. Die Längsachse I stellt dabei den normalen Vektor zu dieser Ebene dar.Thus, for example, the
Aus
Aus der Gesamtbetrachtung der
Aus der obigen Beschreibung der Ausführungsbeispiele wird deutlich, dass ein erstes Ausführungsbeispiel eines Reflektorelementes 10 gemäß den
Wie sich aus dem Vergleich der
Es sei angemerkt, das für Ausstrahlungswinkel einer als Spot-Leuchte einzusetzenden Leuchte typischerweise Ausstrahlwinkel im Bereich von 5 bis 15 Grad und hingegen für Flut-Einsatzzwecke Ausstrahlungswinkel im Bereich von 50 bis 70 Grad verwendet werden. Selbstverständlich sind auch dazwischen liegende Ausstrahlungswinkel erreichbar, wobei mit dem erfindungsgemäßen Reflektorelement auch feine Abstufungen oder Gradeinteilungen möglich sind.It should be noted that beam angles in the range of 5 to 15 degrees are typically used for beam angles of a luminaire to be used as a spotlight and beam angles in the range of 50 to 70 degrees are used for flood applications. Of course, also intermediate beam angle can be achieved, with the reflector element according to the invention also fine gradations or graduations are possible.
Die bei dem Ausführungsbeispiel auf 1600 festgelegte Zahl der Segmente (achtzig in Umfangsrichtung, zwanzig in Radialrichtung) ist selbstverständlich beliebig. Es ist aber durchaus auch vorstellbar, dass zwei miteinander austauschbare Reflektorelemente hinsichtlich ihrer äußeren Abmessungen wie Höhe (h1, h2), Außendurchmesser (a1, a2) und Durchmesser (d1, d2) identisch sind, hinsichtlich ihrer Segmentanzahl jedoch unterschiedlich.Of course, the number of segments (eighty in the circumferential direction, twenty in the radial direction) set to 1600 in the embodiment is arbitrary. However, it is also conceivable that two interchangeable reflector elements with respect to their external dimensions such as height (h 1 , h 2 ), outer diameter (a 1 , a 2 ) and diameter (d 1 , d 2 ) are identical, but in terms of their number of segments differently.
Zum besseren Verständnis sei ebenfalls angemerkt, dass zum erreichen eines Fluter-Effektes, also zur Erreichung möglichst großer Ausstrahlwinkel vornehmlich kleinere Radien r1, r2 verwendet werden. Zum Erreichen eines Spot-Effektes werden im Wesentlichen größere Radien r1, r2 verwendet.For a better understanding, it should also be noted that primarily smaller radii r 1 , r 2 are used to achieve a flood effect, ie to achieve the greatest possible beam angle. To achieve a spot effect, substantially larger radii r 1 , r 2 are used.
Das Reflektorelement 10 besteht vorzugsweise aus gedrücktem Aluminium. Hierzu wird eine Aluminiumronde, also eine kreisförmige Scheibe, entlang einem rotierendem Zapfen bewegt, so das sich der Zapfen (Patrize) auf der Aluminiumronde abbildet. Wie sich insbesondere aus der Schnittdarstellung gemäß
Alternativ kann das Reflektorelement aber beispielsweise auch von einem kunststoff Spritzgussteil oder einem Glaskörperelement gebildet sein, welches mit einer reflektierenden Oberfläche versehen wird, die beispielsweise aufgedampft wird.Alternatively, however, the reflector element can also be formed, for example, by a plastic injection-molded part or a glass body element, which is provided with a reflective surface which, for example, is vapor-deposited.
Claims (18)
- Light for homogeneous illumination of building surfaces or building part-surfaces, comprising a reflector element (10) which is curved in a substantially shell-like manner and which is constructed in a substantially rotationally symmetrical manner, and in the inner space (21) of which there can be arranged at least one lamp, from which light, only after reflection or scattering at the inner side (27) of the reflector element, at least partially reaches the building surface or building part-surface to be illuminated, the inner side of the reflector element being subdivided into a plurality of structurally arranged segments (15a, 15b, 15c, 15d, 32, 38), the segments each having a surface (31a, 31b, 31c, 36, 37, 40) which is curved towards the inner space and which is curved twice, and which has a first curvature having a first radius (r1) and a second curvature having a second radius (r2), a plurality of segments being arranged along the periphery of the reflector element in a substantially annular manner with a group (29) of segments being formed, and the segments of a group having a constant curvature, characterised in that the radii of curvature of the segments increase as the distance of the segments with respect to the apex region of the reflector element increases.
- Light according to claim 1, characterised in that a lamp can be arranged in the region of a focal point (22) of the reflector element (10).
- Light according to either of the preceding claims, characterised in that the reflector element (10) is curved in a substantially parabolic manner.
- Light according to any one of the preceding claims, characterised in that the second curvature having a second radius (r2) is formed about an axis of curvature which is orientated substantially parallel with a longitudinal centre axis (I) of the reflector element (10) or which intersects it at an acute angle.
- Light according to any one of the preceding claims, characterised in that the first curvature having a first radius (r1) is formed about an axis of curvature which is orientated substantially perpendicularly relative to a longitudinal centre axis (I) of the reflector element.
- Light according to any one of the preceding claims, characterised in that the first and the second radius (r1, r2) are different.
- Light according to any one of the preceding claims, characterised in that two respective segments (15a, 15b, 15c, 15d, 16a, 17a) are arranged directly adjacent to each other.
- Light according to any one of the preceding claims, characterised in that, between an apex region (11) of the reflector element and a light emission opening (20) of the reflector element, there are arranged a plurality of groups (29, 29a, 29b, 29c, 29d, 29e, 29f, 29g, 29h, 29i, 29j, 29k, 29l, 29m, 29n, 29o) of segments which are arranged in an annular manner.
- Light according to any one of the preceding claims, characterised in that the number of segments in the peripheral direction is constant regardless of the spacing with respect to an apex region (11) of the reflector element (10).
- Light according to any one of the preceding claims, characterised in that the segments are arranged in a substantially linear manner with respect to the curved inner side (27) of the reflector element (10).
- Light according to any one of the preceding claims, characterised in that the size of the segments increases from an apex region (11) of the reflector element (10) towards a light emission opening (20) of the reflector element.
- Light according to any one of the preceding claims, characterised in that each segment has a substantially trapezoidal base face (projected surface).
- Light according to any one of the preceding claims, characterised in that an annular edge region (12) of the reflector element (10) defines a substantially circular-disc-like light emission opening (20).
- Light according to any one of the preceding claims, characterised in that the light is arranged in a fixed manner.
- Light according to any one of the preceding claims, characterised in that the inner side (27) of the reflector element between the light emission opening (20) and apex region (11) is completely occupied with segments.
- Light according to any one of the preceding claims, characterised in that a collar (13) is arranged in the region of an edge (12) of the reflector element.
- Light according to any one of the preceding claims, characterised in that, on the reflector element (10), in particular on the collar thereof, there are arranged fixing elements and/or fixing openings, in particular fixing grooves (14a, 14b) or fixing recesses.
- Light according to any one of the preceding claims, characterised in that, in the region of an apex region (11) of the reflector element, there is provided an opening through which a lamp or a fixing socket for the lamp can pass.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP09001214A EP2048434A3 (en) | 2004-09-02 | 2005-08-18 | Reflector for illuminating building areas |
PL05017941T PL1632713T3 (en) | 2004-09-02 | 2005-08-18 | Reflector for illuminating building areas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102004042915A DE102004042915B4 (en) | 2004-09-02 | 2004-09-02 | Luminaire for illuminating building surfaces or parts of buildings |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09001214A Division EP2048434A3 (en) | 2004-09-02 | 2005-08-18 | Reflector for illuminating building areas |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1632713A1 EP1632713A1 (en) | 2006-03-08 |
EP1632713B1 true EP1632713B1 (en) | 2009-07-15 |
Family
ID=35311523
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09001214A Withdrawn EP2048434A3 (en) | 2004-09-02 | 2005-08-18 | Reflector for illuminating building areas |
EP05017941A Not-in-force EP1632713B1 (en) | 2004-09-02 | 2005-08-18 | Reflector for illuminating building areas |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09001214A Withdrawn EP2048434A3 (en) | 2004-09-02 | 2005-08-18 | Reflector for illuminating building areas |
Country Status (7)
Country | Link |
---|---|
US (1) | US7188975B2 (en) |
EP (2) | EP2048434A3 (en) |
JP (2) | JP2006073532A (en) |
DE (2) | DE102004042915B4 (en) |
DK (1) | DK1632713T3 (en) |
ES (1) | ES2327423T3 (en) |
PL (1) | PL1632713T3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2428727A1 (en) | 2010-08-25 | 2012-03-14 | Jordan Reflektoren GmbH & Co.KG | Light reflector and method and device for its manufacture |
EP2535639A1 (en) | 2011-06-17 | 2012-12-19 | Jordan Reflektoren GmbH & Co.KG | Light reflector and method and device for its manufacture |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
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US8317367B2 (en) * | 2007-05-07 | 2012-11-27 | Illumination Optics Inc. | Solid state optical system |
US7794119B2 (en) * | 2007-05-07 | 2010-09-14 | Illumination Optics Inc. | Solid state optical system |
DE102007044963B4 (en) * | 2007-07-26 | 2013-03-28 | Erco Gmbh | lamp |
DE102007035396B4 (en) | 2007-07-26 | 2011-04-14 | Erco Gmbh | lamp |
DE202007015488U1 (en) | 2007-07-26 | 2008-12-11 | Erco Leuchten Gmbh | lamp |
DE102007035528B9 (en) | 2007-07-26 | 2012-02-09 | Erco Gmbh | lamp |
DE202007015489U1 (en) | 2007-07-26 | 2008-12-04 | Erco Leuchten Gmbh | lamp |
US20090034271A1 (en) * | 2007-08-01 | 2009-02-05 | Markus Gorres | Light fixture |
US20090034272A1 (en) * | 2007-08-01 | 2009-02-05 | Erco Leuchten Gmbh | Light fixture |
DE202008002018U1 (en) | 2008-02-13 | 2009-07-02 | Erco Gmbh | Luminaire for illuminating building surfaces |
DE102008009013B3 (en) * | 2008-02-13 | 2009-08-20 | Erco Gmbh | Luminaire and reflector element, in particular for illuminating building surfaces |
US20090207616A1 (en) * | 2008-02-18 | 2009-08-20 | Erco Leuchten Gmbh | Light fixture for illuminating building surfaces |
DE102008063370B4 (en) | 2008-11-06 | 2011-11-10 | Erco Gmbh | lamp |
DE202008017184U1 (en) | 2008-11-06 | 2010-04-08 | Erco Gmbh | lamp |
JP4576490B2 (en) * | 2008-12-09 | 2010-11-10 | フェニックス電機株式会社 | Reflector for light emitting device and light emitting device using the same |
DE202009003315U1 (en) | 2009-03-11 | 2010-07-29 | Erco Gmbh | Reflector for a lamp u.a. |
AU2010201102B2 (en) * | 2009-03-19 | 2013-06-27 | Gamma Illumination Pty Limited | Light Assembly for Domestic and Industrial Enviroments |
DE102009025629A1 (en) | 2009-06-17 | 2010-12-23 | Erco Gmbh | Lamp for illuminating building wall, has bulb for projecting in interior part of reflector and overlapped by covering element that is formed from wound wire, where covering element comprises connecting and blend prevention sections |
DE202009013887U1 (en) | 2009-10-13 | 2011-02-24 | Erco Gmbh | lamp |
DE102009049301A1 (en) | 2009-10-13 | 2011-05-05 | Erco Gmbh | lamp |
CN102087004B (en) * | 2009-12-03 | 2014-06-11 | 马士科技有限公司 | LED (Light Emitting Diode) lamp and reflecting cup therein |
US8360605B2 (en) | 2010-05-09 | 2013-01-29 | Illumination Optics Inc. | LED luminaire |
JP2011253694A (en) * | 2010-06-02 | 2011-12-15 | Stanley Electric Co Ltd | Led lighting device |
DE102011085418A1 (en) * | 2011-10-28 | 2013-05-02 | Trilux Gmbh & Co. Kg | Reflector for semiconductor light sources |
CN103185285A (en) * | 2011-12-28 | 2013-07-03 | 苏州佳亿达电器有限公司 | Light-collecting hood applicable to LED (Light-Emitting Diode) lamp |
ITFI20120022A1 (en) * | 2012-02-10 | 2013-08-11 | Iguzzini Illuminazione | REFLECTOR FOR HOMOGENEOUS LIGHTING LUMINAIRES. |
US9004727B2 (en) * | 2013-01-15 | 2015-04-14 | Snap-On Incorporated | Interchangeable reflectors for light devices |
CN104676280B (en) * | 2013-11-30 | 2019-04-16 | 海洋王(东莞)照明科技有限公司 | A kind of flashlight and its light-distribution lens |
WO2015087116A1 (en) * | 2013-12-13 | 2015-06-18 | Dmy Mühendi̇sli̇k Elektri̇k Maki̇ne İnşaat Ve Bi̇li̇şi̇m San. Ti̇c. Ltd. Şti̇. | A reflector for illumination |
ITUA20162048A1 (en) * | 2016-03-25 | 2017-09-25 | Artemide Spa | LIGHTING DEVICE |
Citations (1)
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EP0915287A2 (en) * | 1997-11-05 | 1999-05-12 | Aoki Electric Industrial Co., Ltd. | Reflecting mirror for floodlight |
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US2154296A (en) * | 1937-09-03 | 1939-04-11 | Westinghouse Electric & Mfg Co | Lighting fixture |
FR1045332A (en) * | 1951-11-21 | 1953-11-25 | Amel Ets | Improvements to light reflectors |
US4021659A (en) * | 1975-10-30 | 1977-05-03 | General Electric Company | Projector lamp reflector |
US4545000A (en) * | 1983-10-03 | 1985-10-01 | Gte Products Corporation | Projection lamp unit |
DE4105056A1 (en) * | 1990-02-09 | 1992-08-20 | Wilfried Poellet | Low-voltage halogen lamp in short cylindrical casting - is backed by deep-drawn sheet metal reflector under domed centre of casting recessed into board |
JPH0459012U (en) * | 1990-09-27 | 1992-05-20 | ||
US5272408A (en) * | 1991-05-09 | 1993-12-21 | Gte Products Corporation | Lamp and reflector assembly |
WO1992017733A1 (en) * | 1991-04-03 | 1992-10-15 | Gte Products Corporation | Lamp and reflector assembly |
JPH0562651A (en) * | 1991-08-30 | 1993-03-12 | Toshiba Lighting & Technol Corp | Light source with mirror |
JP2811144B2 (en) * | 1993-08-18 | 1998-10-15 | 株式会社小糸製作所 | Vehicle lighting |
DE9317087U1 (en) * | 1993-11-09 | 1994-01-20 | Eurolicht Gmbh | Recessed luminaire |
JP3193889B2 (en) * | 1997-06-18 | 2001-07-30 | 株式会社小糸製作所 | Vehicle lighting |
DE19750269C1 (en) * | 1997-11-13 | 1999-05-20 | Heraeus Noblelight Gmbh | Reflector for optical light source |
FR2775230B1 (en) * | 1998-02-23 | 2000-05-12 | Valeo Vision | IMPROVED ASSEMBLY OF AT LEAST ONE PROJECTOR AND A SIGNAL LIGHT FOR A MOTOR VEHICLE |
DE19910192C2 (en) * | 1999-03-09 | 2002-04-04 | Schott Auer Gmbh | Reflector with a concave, rotationally symmetrical body and a faceted reflection surface |
US6206549B1 (en) * | 1999-05-27 | 2001-03-27 | World Hint Limited | Light reflector |
US6350046B1 (en) * | 1999-07-22 | 2002-02-26 | Kenneth Lau | Light fixture |
US6454433B1 (en) * | 2001-05-24 | 2002-09-24 | Eveready Battery Company, Inc. | Dual faceted reflector |
-
2004
- 2004-09-02 DE DE102004042915A patent/DE102004042915B4/en not_active Expired - Fee Related
- 2004-09-14 US US10/940,601 patent/US7188975B2/en not_active Expired - Fee Related
-
2005
- 2005-08-18 EP EP09001214A patent/EP2048434A3/en not_active Withdrawn
- 2005-08-18 PL PL05017941T patent/PL1632713T3/en unknown
- 2005-08-18 DE DE502005007692T patent/DE502005007692D1/en active Active
- 2005-08-18 EP EP05017941A patent/EP1632713B1/en not_active Not-in-force
- 2005-08-18 DK DK05017941T patent/DK1632713T3/en active
- 2005-08-18 ES ES05017941T patent/ES2327423T3/en active Active
- 2005-09-01 JP JP2005253130A patent/JP2006073532A/en active Pending
-
2009
- 2009-06-15 JP JP2009004087U patent/JP3153673U/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0915287A2 (en) * | 1997-11-05 | 1999-05-12 | Aoki Electric Industrial Co., Ltd. | Reflecting mirror for floodlight |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2428727A1 (en) | 2010-08-25 | 2012-03-14 | Jordan Reflektoren GmbH & Co.KG | Light reflector and method and device for its manufacture |
EP2535639A1 (en) | 2011-06-17 | 2012-12-19 | Jordan Reflektoren GmbH & Co.KG | Light reflector and method and device for its manufacture |
Also Published As
Publication number | Publication date |
---|---|
DE502005007692D1 (en) | 2009-08-27 |
JP3153673U (en) | 2009-09-17 |
EP1632713A1 (en) | 2006-03-08 |
ES2327423T3 (en) | 2009-10-29 |
PL1632713T3 (en) | 2009-12-31 |
JP2006073532A (en) | 2006-03-16 |
EP2048434A3 (en) | 2009-11-04 |
EP2048434A2 (en) | 2009-04-15 |
DE102004042915B4 (en) | 2011-04-14 |
DE102004042915A1 (en) | 2006-03-23 |
US20060044808A1 (en) | 2006-03-02 |
DK1632713T3 (en) | 2009-10-26 |
US7188975B2 (en) | 2007-03-13 |
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