EP1978298A2 - Reflector for a light - Google Patents
Reflector for a light Download PDFInfo
- Publication number
- EP1978298A2 EP1978298A2 EP08154055A EP08154055A EP1978298A2 EP 1978298 A2 EP1978298 A2 EP 1978298A2 EP 08154055 A EP08154055 A EP 08154055A EP 08154055 A EP08154055 A EP 08154055A EP 1978298 A2 EP1978298 A2 EP 1978298A2
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- EP
- European Patent Office
- Prior art keywords
- reflector
- segments
- segment
- reflector according
- field
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- 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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- 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
- 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
Definitions
- the invention relates to a rotationally symmetrical reflector whose reflection surface consists of several segments.
- a luminous field is understood here as the illuminance distribution which is not generated by direct, but only by reflected light beams.
- FIGS. 1 to 3 show how a rotationally symmetrical reflector forms its luminous field: On the right side in each case the longitudinal section of an elliptical reflector 1 is shown, in which a lamp 2 is arranged with a point light source 3. The left side shows in each case the light field reflected by reflected light rays on a wall 5.
- FIG. 1 shows that the light rays 4a reflected by the edge region 1a of the reflector on the wall 5 form a large annular luminous field 6a.
- FIG. 2 shows that the light beams 4b reflected by the intermediate region 1b of the reflector form a smaller annular luminous field 6b within the large annular luminous field 6a.
- FIG. 3 shows that the light beams 4c reflected by the apex portion 1c of the reflector form a small circular luminous field 6c at the center.
- the brightness of a light field depends on how close light rays hit a wall surface.
- the areas 1a, 1b and 1c of the reflector are divided at the same angle so that each area reflects about the same amount of light rays. From the light field 6c of FIG. 3 it can be seen that the reflected light beams 4c concentrate on a small area and form a very bright illuminated field.
- the reflection areas 1a, 1b and 1c are roughened, for example, by sandblasting or hammering, so that the reflected light beams 4a, 4b and 4c are spread wider.
- these light rays are partly outside the desired light field and the loss increases.
- the reflection surface consists of several planar segments, by means of which also in the Figures 1 - 3 described light fields can be generated.
- a lamp assembly incorporating a paraboloidal reflector and a filament having a filament is known.
- the reflector has a concave reflection surface and a rotation axis, wherein the reflection surface has a plurality of reflective facets.
- the filament is substantially in the focus of the reflection surface and aligned with the axis of rotation.
- the filament has a length to diameter ratio of 6: 1 or greater.
- the facets have at least 50% of the reflective surface dimensions and curvatures selected to produce a light pattern in which a facet-induced ratio of filament width dispersion to filament length dispersion is at least 2: 1.
- the axis of rotation defines an axial direction and a direction of rotation about the axis.
- the reflective facets are arranged in axially contiguous rings centered on the axis and lying in a plane perpendicular to the axis.
- the known paraboloidal reflector is designed in such a way that the facets in their entirety produce a single circular luminous field.
- the invention has for its object to provide a reflector which generates a bright, homogeneous light field with a clear demarcation on the edge of the light field on a wall.
- the claim 16 relates to a method for producing a tool for producing a reflector.
- the claim 17 relates to a tool for producing a reflector.
- FIG. 1 shows a schematic example of a conventional elliptical reflector 1 with a lamp 2 and its luminous field 6 a, which is generated by the edge region 1 a of the reflection surface on a wall 5.
- FIG. 2 shows the same reflector 1 with the lamp 2 and its luminous field 6 b, which is generated by the intermediate portion 1 b of the reflection surface on the wall 5.
- FIG. 3 shows the same reflector 1 with the lamp 2 and its luminous field 6 c, which is generated by the apex portion 1 c of the reflection surface on the wall 5.
- FIG. 4 shows a schematic, first embodiment of a reflector 7 according to the invention.
- FIG. 5 shows the reflector 7 according to the invention with a lamp 2 and the light field 12 a, which is generated by the edge region 8 a of the reflection surface on a wall 5.
- FIG. 6 shows the reflector 7 according to the invention with the lamp 2 and the light field 12 b, which is generated by the intermediate portion 8 b of the reflection surface on the wall 5.
- FIG. 7 shows the reflector 7 according to the invention with the lamp 2 and the light field 12 c, which is generated by the apex portion 8 c of the reflection surface on the wall 5.
- FIG. 8 shows a three-dimensional representation of the top, first segment 9a of the reflector 7 with the radiated from the point light source 3 and reflected by the segment 9a light beams 13, 14, 15 and 16th
- FIG. 9 FIG. 12 shows the light field 17 generated by all light rays reflected by the segment 9a on the wall compared to the light field 18 of a conventional elliptical reflector 1 having the same reflection surface.
- FIG. 10 shows the reflector 7 according to the invention with the lamp 2 and the light-emitting panel 17 a, of the by the top, first Segment 9a reflected light rays 19a on the wall 5 is generated.
- FIG. 11 shows the reflector 7 according to the invention with the lamp 2 and the light field 17g, which is generated on the wall 5 of the light beams 19g reflected by the adjacent first segment 9g.
- FIG. 12 shows the reflector 7 according to the invention with the lamp 2 and the light field 23, which is generated by the light reflected by the uppermost, last segment 9f light beams 19f on the wall 5.
- FIG. 13 shows a schematic, second embodiment of a reflector according to the invention.
- FIG. 14 shows the reflector according to the invention with a lamp 2 and a generated on a wall 5 of light field 30a, which is generated by light beams 29a.
- FIG. 15 shows the reflector according to the invention with a lamp 2 and a luminous fields 30a and 30b generated on a wall 5, which are generated by light beams 29a and 29b.
- FIG. 16 shows the reflector according to the invention with a lamp 2 and a luminous fields 30a, 30b and 30c generated on a wall 5, which are generated by light beams 29a, 29b and 29c
- FIG. 17 shows a schematic, third embodiment of a reflector according to the invention.
- FIG. 18 shows a schematic, fourth embodiment of a reflector according to the invention.
- FIG. 4 shows a side and a front view of a reflector 7 of the invention.
- This reflector is rotationally symmetrical.
- a rotationally symmetrical reflector in the sense of the invention is understood to mean a reflector whose reflection surface For example, corresponds to a spherical segment or a Rotationsellipsoidsegment or has a shape that is similar to a spherical segment or a Rotationsellipsoidsegment.
- Its reflection surface 8 consists of several segments 9. The segments 9 are arranged in the transverse direction to the reflector axis 10, ie in the circumferential direction of the reflector axis 10, at a certain angle ⁇ , in this example 30 degrees, as in the right-hand illustration in FIG FIG. 4 is illustrated.
- each of the segments 9 is illustrated with the reference numerals L1 and L2, distributed in the longitudinal direction of the reflector axis 10 with different lengths. Furthermore, each of the segments 9 is curved so that it forms a spherical trapezium and all segments are lined up in the direction of the reflector axis 10 at different angles, as shown in the left illustration of FIG. 4 is illustrated by the reference symbols ⁇ and ⁇ . The radius R of the spherical trapezoid is the same for all segments.
- a spherical trapezoid in the context of the invention is meant a segment having four boundary lines, two of which are curved and parallel to each other, and the other two are rectilinear and equal length and to run towards each other.
- Such a segment is for example in the right representation of FIG. 4 designated by the reference numeral 9a.
- FIG. 5 shows that the reflected by the edge portion 8a of the reflector light beams 11a on a wall 5, a completely circular light field 12a produce.
- FIG. 6 shows that the light beams 11b reflected by the intermediate region 8b produce an equally perfectly circular light field 12b.
- FIG. 7 shows that the light beams 11c reflected by the apex portion 8c also generate a perfectly circular light field 12c.
- the FIG. 8 shows a three-dimensional representation of the top, first segment 9a with the light beams 13, 14, 15 and 16, the emitted from the point light source 3 and reflected by the segment 9a. Because of its shape, namely, the spherical trapezoid, not only the light rays 15 and 16 incident on the side of the segment 9a but also the light rays 13 and 14 incident on the center of the segment become larger as compared with an elliptic reflection surface angle of reflection. As a result, the light beams are reflected wider and form a larger light field.
- FIG. 9 shows at the top the light field 17, the light beams 19a (see FIG. 10 ) is generated on a wall 5, which are reflected by the segment 9a.
- the FIG. 9 In contrast, below shows the light field 18, which is generated by a known elliptical reflector 1. The amount of reflected light rays and the size of the reflection surface are the same for both reflectors.
- the luminous field 17a which is generated by the light rays 19a on the wall 5, which are reflected by the uppermost first segment 9a. Due to the inclination angle of the segment 9a and its length, the luminous field 17a is positioned so that the lower end 20 of the luminous field 17a reaches the circle 21 of the desired luminous field 12a and vertically approximately as long that the upper end 22 reaches the center of the desired luminous field 12a ,
- FIG. 11 on the left shows the light field 17g produced by the light rays passing through the uppermost and adjacent segment 9g (see FIG FIG. 4 ) are reflected.
- the shape of the light field 17g is identical to the shape of the light field 17a.
- the light field 17g is, however, arranged rotated by 30 degrees counterclockwise with respect to the light field 17a. Since the segments are distributed in the transverse direction at an angle of 30 degrees in the circle, the same light field in the circle repeats a total of twelve times. This results in a completely circular illuminated field 12a through only one row of the segments.
- a segment produces a similar light field as the light field 17a, but a little narrower and longer.
- the twelve segments of the second row form, just like the segments of the first row, a completely circular illuminated field 12a.
- the edge region 8a in the FIG. 5 consists of the first three segments. As stated above, each row forms a perfectly circular illuminated field.
- the luminous field 12a in its entirety consists of three perfectly circular luminous fields, which are superposed on each other, each of these completely circular luminous fields being produced by a segment row.
- the FIG. 12 Fig. 12 shows on the left side the luminous field 23 generated by the light beams 19f reflected by the uppermost and last segment 9f.
- the segment 9 f reflects the light beams 19 f so high that the upper end 24 of the light field 23 reaches the circle 21 of the desired light field 12 and so deep that the lower end 25 also reaches the circle 21. Since this luminous field 23 is repeated twelve times with the angle of 30 degrees, a completely circular luminous field 12c is formed again.
- the segment 9 f can also reflect the light beams 19 f so deeply that the lower end 25 of the light field 23 reaches the center of the circle 21.
- the total field of this reflector consists of a total of six completely circular fields of light, which are superimposed on each other.
- the total field of light - depending on the reflector size - consist of up to fifteen perfectly circular, superimposed light fields. This creates a very homogeneous light field with a clear demarcation at the edge of the light field.
- the light field 23 of the FIG. 12 has great advantages for the lamps, which produce different light colors in a horizontal position, such as high pressure ceramic metal halide vapor lamps.
- the metal halide substance filled in the burner does not evaporate completely and the remainder remains as a yellow coating on the bottom of the burner.
- the light rays emitted by the coating are yellowish in color and form a yellow spot on the wall in the light field.
- the segments distribute the yellow spot very widely, so that the intensity of the yellow color is reduced. Furthermore, the light field 23 is rotated twelve times. As a result, the yellow spot is even wider spread and mixed with the light fields without yellow spot. Thus, the circular luminous field is neutralized.
- the light source system without a reflector or with a conventional reflector, such. Paraboloidal or ellipsoidal reflector is used, creates a shadow with other colors than the color of the illuminated object, because the three light colors can not be mixed sufficiently.
- the reflector according to the invention the light beams are distributed widely with different colors and the resulting light fields are placed several times rotated on each other. Thus, a single light color is generated in which three light colors have been mixed perfectly.
- each segment row forms a completely circular illuminated field. But this does not always have to be this way. Even with three rows of segments can be a perfect circular light field are formed. This is particularly useful in forming a large light field.
- FIG. 13 shows a reflector 26 as a second embodiment of the invention.
- FIGS. 14 to 16 show how the three outer rows of segments form a perfectly circular illuminated field. It should be the size of the circle 31 of the desired total field of light as about three times larger compared to the circle 21 in the 10 to 12 begin.
- FIG. 14 shows on the left side the light field 30a generated by the light rays 29a on a wall 5 passing through the uppermost first segment 27a (see FIG FIG. 13 ) are reflected. Due to the inclination angle ⁇ of the segment 27a, as shown in the left-hand illustration in FIG FIG. 13 is illustrated, the luminous field 30a is positioned so that the lower end of the luminous field 30a reaches the circle 31 of the desired entire luminous field. Theoretically, the light field 30a can be made even wider. But the radius of segment 27a has to be smaller for that. It is difficult to precisely press a reflector with the small radius. Practically, one chooses a radius that is a good compromise for the width of the light field and the precision of the reflector shape.
- the Fig. 15 shows on the left side of the light field 30b, which is generated by the light beams 29b, which are reflected by the segment 27b.
- the luminous panel 30b is positioned so that its lower end fits with the upper end of the luminous panel 30a.
- the Fig. 16 shows on the left side of the luminous field 30c, which is generated by the light beams 29c, which are reflected by the third segment 27c.
- the luminous field 30c is positioned so that its lower end mates with the upper end of the luminous panel 30b and its upper end reaches the center of the circle 31.
- the three segments 27a, 27b and 27c form a step consisting of the light fields 30a, 30b and 30c.
- the adjacent three segments form an equal step but are rotated in the transverse direction at an angle of 30 degrees.
- an equal step in the circle is repeated a total of twelve times. This creates a completely circular illuminated field through three rows of segments.
- the next segment 27d may form a similar second stage of the luminous fields.
- the segment 27d should reflect the light rays so far down that its luminous field has the same height as that of the luminous field 30a. Since the upper segment 27c reflects the light beams upward so high that its luminous field 30c reaches the center of the circle 31, the inclination angle ⁇ of the segment 27d becomes smaller than the inclination angle ⁇ of the segment 27c (see FIG Fig. 13 , left illustration).
- a grinding machine grinds the tool with a back and forth movement (in the left image of the Fig. 13 Left and right movement) from the segment 27a ago with the specified angle.
- a tool which consists of two parts, which are in the region of the junction of the two segments 27c, 27d assembled and separable.
- Such a tool is produced by first providing it in the form of a two-part molded body, juxtaposing the two parts of the shaped body, bringing the outside of the shaped body into rotationally symmetrical shape by a turning operation, separating the two parts of the shaped body, then inserting them one at a time each desired segment shape brought are then reassembled the two parts of the molding and the tool in assembled form for the preparation of the reflector according to FIG. 13 is used.
- the segment 27d would reflect the light rays so high that the upper end of the light field reaches the circle 31, such as the light field 23 of the Fig. 12 , then the inclination angle ⁇ of the segment 27d would be greater than the inclination angle ⁇ of the segment 27c. In this case, no "kink" arises.
- the width of a light field in the horizontal direction is determined by the radius R of the segments and the distribution angle of the segments in the circumferential direction.
- the length of a light field in the vertical direction is determined by the length of the segment.
- the arrangement of a light field is defined by the angle of inclination of the segment in the longitudinal direction of the reflector axis 10.
- the radius is always the same. Therefore, the width of the luminous field in the direction of the vertex becomes smaller and smaller.
- the radius can be different for each segment row. For example, the radius can be changed so that the segments get an ever smaller radius in the direction of the vertex. As a result, each time the same width of the light field is formed regardless of the rows.
- the "radius" of the segments need not necessarily be circular, but may also have a different shape, for example, it may be ellipsoidal.
- the shape of a segment must correspond to a spherical trapezoid or possibly a circular cone section. That is, the longitudinal section must be a straight line. If the longitudinal section of a segment were a curve, then the shape of the segment would be a sphere section or an ellipsoidal section that would reflect the light rays in all directions, in part back into the reflector.
- a relatively small luminous field for example, with a beam angle of 20 degrees, can not be formed with these segments, because the inclination angle of the segment can not influence the reflection direction of the light beams.
- FIG. 17 shows a side and a front view of a reflector according to a third embodiment of the invention.
- An inwardly curved segment 9a is located between two outwardly curved segments 32a and 33a.
- This combination is advantageous in the reflector manufacture, since you can press the reflector smooth.
- segments which are arched outwardly form a smaller width of the light field than the inwardly curved segments.
- the radius of the outwardly curved segments can be made correspondingly smaller.
- FIG. 18 shows a fourth embodiment of a reflector according to the invention. This produces an approximately quadrangular field without deviating from the rotationally symmetrical reflector shape.
- n adjacent segments with a smaller radius R1 alternate with n adjacent segments with a larger radius R2, n being equal to 3.
- R1 and R2 are in the FIG. 18 illustrated with arrows labeled R1 and R2, respectively.
- the length of these arrows corresponds to the radius.
- the small circle at the beginning of each arrow corresponds to the center of a circle, the arrowhead of each arrow touches the edge of each associated segment.
- Radially adjacent segments each have the same radius R1 or R2.
- a smaller radius segment R1 reflects the light beams wider and thus produces a wider light field than a larger radius segment R2.
- the segments with the smaller radius R1 produce a laterally wide light field, while the segments with the larger radius R2 generate a laterally narrow field.
- a plurality of adjacent segments with a radius R1 can alternate cyclically with a plurality of adjacent segments with a radius R2 and a plurality of adjacent segments with a radius R3 in the circumferential direction of the reflector. This has the advantage that the corners of the square overall light fields are sharply delineated.
- a reflector according to the invention is rotationally symmetrical and can be produced inexpensively.
- a quadrangular light field can be well used, for example, in the context of dental lighting. Furthermore, a very large rectangular light field can form through a plurality of reflectors. Such a large rectangular light field can be used, for example, for the recording illumination of an auto-crash test.
- a reflector according to the invention it is not necessary to roughen the reflection surface because the light rays are widely reflected by the segments.
- the reflection surface can be anodized brilliantly. This shine gives a light a noble appearance.
- a reflector according to the invention is inexpensive to produce and calculable. Under calculable is to be understood that in the development of a specific reflector using a computer, the light distribution can be simulated. This allows the design of a reflector whose shape produces a desired light field.
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Abstract
Description
Die Erfindung betrifft einen rotationssymmetrischen Reflektor, dessen Reflexionsoberfläche aus mehreren Segmenten besteht.The invention relates to a rotationally symmetrical reflector whose reflection surface consists of several segments.
Mittels eines derartigen Reflektors sollen Lichtstrahlen so reflektiert werden, dass auf einer Wand ein helles, homogenes Leuchtfeld mit einer klaren Abgrenzung am Rand des Leuchtfeldes entsteht. Unter Leuchtfeld wird hierbei die Beleuchtungsstärkeverteilung verstanden, die nicht durch direkte, sondern nur durch reflektierte Lichtstrahlen erzeugt wird.By means of such a reflector light beams are to be reflected so that a bright, homogeneous light field with a clear demarcation at the edge of the light field is formed on a wall. A luminous field is understood here as the illuminance distribution which is not generated by direct, but only by reflected light beams.
Bei rotationssymmetrischen Reflektoren ist es im Vergleich zu sonstigen Reflektoren, wie beispielsweise rinnenförmigen Reflektoren für Langfeldleuchten, wesentlich schwieriger, ein homogenes Leuchtfeld zu erzeugen.In rotationally symmetrical reflectors, it is much more difficult to produce a homogeneous light field compared to other reflectors, such as channel-shaped reflectors for linear luminaires.
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Die Helligkeit eines Leuchtfeldes hängt davon ab, wie dicht Lichtstrahlen auf eine Wandfläche treffen. Die Bereiche 1a, 1b und 1c des Reflektors sind mit dem gleichen Winkel unterteilt, so dass jeder Bereich etwa die gleiche Menge an Lichtstrahlen reflektiert. Aus dem Leuchtfeld 6c der
Im Vergleich zu den Leuchtfeldern 6b und 6a erkennt man, dass die Helligkeit des gesamten Leuchtfeldes 6a + 6b + 6c dieses Reflektors 1 in der Mitte sehr groß ist und nach außen rapid abnimmt.In comparison with the
Um diese Helligkeitsunterschiede einigermaßen auszugleichen, werden bei bekannten Reflektoren die Reflexionsbereiche 1a, 1b und 1c beispielsweise durch Sandstrahlung oder Hammerschlag aufgeraut, so dass die reflektierten Lichtstrahlen 4a, 4b und 4c breiter gestreut werden. Diese Lichtstrahlen verlaufen aber zum Teil außerhalb des gewünschten Leuchtfeldes und der Verlust nimmt zu.In order to compensate for these differences in brightness somewhat, in known reflectors, the
Außerdem ist es äußerst schwierig, immer eine gleich raue Oberfläche zu bekommen. Dies ist auch von den Bedingungen des verwendeten Eloxalverfahrens abhängig. Manchmal ist die Oberfläche zu glänzend, manchmal zu rau.In addition, it is extremely difficult to always get an equally rough surface. This is also dependent on the conditions of the anodizing process used. Sometimes the surface is too shiny, sometimes too rough.
Ebenso schwierig ist es, das Ende des Leuchtfeldes klar abzugrenzen, weil die Helligkeit des Leuchtfeldes, wie bereits erklärt, nach außen immer weiter abnimmt.It is just as difficult to clearly delineate the end of the light field because, as already explained, the brightness of the light field continues to decrease to the outside.
Weiterhin sind auch bereits Reflektoren bekannt, deren Reflexionsfläche aus mehreren ebenflächigen Segmenten besteht, mittels welcher ebenfalls die in den
Aus der
Der Erfindung liegt die Aufgabe zugrunde, einen Reflektor zu schaffen, der auf einer Wand ein helles, homogenes Leuchtfeld mit einer klaren Abgrenzung am Rand des Leuchtfeldes erzeugt.The invention has for its object to provide a reflector which generates a bright, homogeneous light field with a clear demarcation on the edge of the light field on a wall.
Diese Aufgabe wird durch einen Reflektor mit den im Anspruch 1 angegebenen Merkmalen gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Patentansprüchen. Der Anspruch 16 betrifft ein Verfahren zur Herstellung eines Werkzeugs zur Herstellung eines Reflektors. Der Anspruch 17 betrifft ein Werkzeug zur Herstellung eines Reflektors.This object is achieved by a reflector having the features specified in
Die Vorteile eines Reflektors mit den erfindungsgemäßen Merkmalen ergeben sich aus der nachfolgenden, beispielhaften Erläuterung der Erfindung anhand der Zeichnungen.The advantages of a reflector with the features according to the invention will become apparent from the following, exemplary explanation of the invention with reference to the drawings.
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Bei der zweiten Reihe erzeugt ein Segment ein ähnliches Leuchtfeld wie das Leuchtfeld 17a, aber ein wenig schmäler und länger. Die zwölf Segmente der zweiten Reihe bilden genauso wie die Segmente der ersten Reihe ein vollkommen kreisförmiges Leuchtfeld 12a.In the second series, a segment produces a similar light field as the
Der Randbereich 8a in der
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Gemäß anderer Ausführungsbeispiele, beispielsweise bei Reflektoren für eine Ladenbeleuchtung, kann das Gesamtleuchtfeld - je nach Reflektorgröße - aus bis zu fünfzehn vollkommen kreisförmigen, einander überlagerten Leuchtfeldern bestehen. Dabei entsteht ein sehr homogenes Leuchtfeld mit einer klaren Abgrenzung am Leuchtfeldrand.According to other embodiments, for example, reflectors for a shop lighting, the total field of light - depending on the reflector size - consist of up to fifteen perfectly circular, superimposed light fields. This creates a very homogeneous light field with a clear demarcation at the edge of the light field.
Das Leuchtfeld 23 der
Bei diesen Lampen verdampft die im Brenner (inneren Glaskolben) gefüllte Metallhalogen-Substanz nicht ganz und der Rest bleibt als gelber Belag auf dem Boden des Brenners zurück. Die Lichtstrahlen, die durch den Belag abgestrahlt werden, sind gelblich gefärbt und bilden auf der Wand einen gelben Fleck im Leuchtfeld.In these lamps, the metal halide substance filled in the burner (inner glass bulb) does not evaporate completely and the remainder remains as a yellow coating on the bottom of the burner. The light rays emitted by the coating are yellowish in color and form a yellow spot on the wall in the light field.
Beim erfindungsgemäßen Reflektor verteilen die Segmente den gelben Fleck sehr breit, so dass die Intensität der gelben Farbe reduziert wird. Weiterhin wird das Leuchtfeld 23 zwölfmal gedreht aufeinandergelegt. Dadurch wird der gelbe Fleck noch breiter verteilt und mit den Leuchtfeldern ohne gelben Fleck gemischt. Somit wird das kreisförmige Leuchtfeld neutralisiert.In the reflector according to the invention, the segments distribute the yellow spot very widely, so that the intensity of the yellow color is reduced. Furthermore, the
Weiterhin gibt es ein Lichtquellensystem, das aus sehr vielen, z.B. hundert, winzigen LEDs (Light Emitting Diodes) mit drei Farben (Rot, Blau und Grün) besteht. Damit kann man eine weiße Farbe mit sehr hoher Farbwiedergabe erzeugen oder durch ein elektrisches Steuergerät unterschiedliche Lichtfarben erzeugen.Furthermore, there is a light source system consisting of a great many, e.g. hundred, tiny LEDs (Light Emitting Diodes) with three colors (red, blue and green) consists. So you can produce a white color with very high color rendering or generate different light colors by an electrical control unit.
Wenn das Lichtquellensystem ohne Reflektor oder mit einem herkömmlichen Reflektor, wie z.B. Paraboloid- oder Ellipsoidreflektor, verwendet wird, entsteht ein Schatten mit anderen Farben als die Farbe des ausgeleuchteten Objekts, weil die drei Lichtfarben nicht ausreichend gemischt werden können. Bei dem Reflektor gemäß der Erfindung werden die Lichtstrahlen mit unterschiedlichen Farben breit verteilt und die dadurch entstehenden Leuchtfelder werden mehrmals gedreht aufeinander gelegt. Somit wird eine einzige Lichtfarbe erzeugt, bei der drei Lichtfarben perfekt gemischt worden sind.If the light source system without a reflector or with a conventional reflector, such. Paraboloidal or ellipsoidal reflector is used, creates a shadow with other colors than the color of the illuminated object, because the three light colors can not be mixed sufficiently. In the reflector according to the invention, the light beams are distributed widely with different colors and the resulting light fields are placed several times rotated on each other. Thus, a single light color is generated in which three light colors have been mixed perfectly.
Beim vorstehend beschriebenen Ausführungsbeispiel bildet jede Segmentreihe ein vollkommen kreisförmiges Leuchtfeld. Dies muss aber nicht immer so sein. Auch mit drei Segmentreihen kann ein vollkommen kreisförmiges Leuchtfeld gebildet werden. Dies ist insbesondere dabei nützlich, ein großes Leuchtfeld zu bilden.In the embodiment described above, each segment row forms a completely circular illuminated field. But this does not always have to be this way. Even with three rows of segments can be a perfect circular light field are formed. This is particularly useful in forming a large light field.
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So bilden die drei Segmente 27a, 27b und 27c eine Stufe bestehend aus den Leuchtfeldern 30a, 30b und 30c. Die benachbarten drei Segmente bilden eine gleiche Stufe, die aber in der Querrichtung mit einem Winkel von 30 Grad im Kreis gedreht positioniert ist. So wiederholt sich eine gleiche Stufe im Kreis insgesamt zwölfmal. Dadurch entsteht ein vollkommen kreisförmiges Leuchtfeld durch drei Reihen der Segmente.Thus, the three
Das nächste Segment 27d kann zusammen mit den unteren Segmenten 27e und 27f eine ähnliche zweite Stufe der Leuchtfelder bilden. In diesem Fall soll das Segment 27d die Lichtstrahlen so tief nach unten reflektieren, dass sein Leuchtfeld die gleiche Höhe wie die des Leuchtfeldes 30a hat. Da das obere Segment 27c die Lichtstrahlen so hoch nach oben reflektiert, dass sein Leuchtfeld 30c die Mitte des Kreises 31 ereicht, wird der Neigungswinkel ε des Segments 27d kleiner als der Neigungswinkel δ des Segments 27c (siehe
Dabei bildet sich ein "Knick" an der Verbindungsstelle 28. Dies verursacht große Schwierigkeiten bei der Herstellung des Werkzeugs zur Herstellung eines Reflektors. Um die Segmente 27 im Werkzeug zu bilden, schleift eine Schleifmaschine das Werkzeug mit einer Hin- und Rückbewegung (im linken Bild der
Wenn die Schleifmaschine das Segment 27c des Werkzeug mit dem Winkel δ schleifen würde, dann würde sie gleichzeitig auch einen Teil des Segments 27d abschleifen. Um dies zu verhindern, wird ein Werkzeug bereitgestellt, das aus zwei Teilen besteht, die im Bereich der Verbindungsstelle der beiden Segmente 27c, 27d zusammenfügbar und trennbar sind.If the grinding machine were to grind the
Ein derartiges Werkzeug wird hergestellt, indem es zunächst in Form eines zweiteiligen Formkörpers bereitgestellt wird, die beiden Teile des Formkörpers aneinandergelegt werden, die Außenseite des Formkörpers durch einen Drehvorgang in rotationssymmetrische Form gebracht wird, die beiden Teile des Formkörpers voneinander getrennt, dann einzeln in die jeweils gewünschte Segmentform gebracht werden, danach die beiden Teile des Formkörpers wieder zusammengefügt werden und das Werkzeug in zusammengefügter Form zur Herstellung des Reflektors gemäß
Wenn das Segment 27d die Lichtstrahlen so hoch reflektieren würde, dass das obere Ende des Leuchtfeldes den Kreis 31 erreicht, wie z.B. das Leuchtfeld 23 der
Die Breite eines Leuchtfeldes in waagrechter Richtung wird durch den Radius R der Segmente und den Aufteilungswinkel der Segmente in Umfangsrichtung bestimmt. Die Länge eines Leuchtfeldes in senkrechter Richtung wird durch die Länge des Segments bestimmt. Die Anordnung eines Leuchtfeldes wird durch den Neigungswinkel des Segments in der Längsrichtung der Reflektorachse 10 definiert.The width of a light field in the horizontal direction is determined by the radius R of the segments and the distribution angle of the segments in the circumferential direction. The length of a light field in the vertical direction is determined by the length of the segment. The arrangement of a light field is defined by the angle of inclination of the segment in the longitudinal direction of the
Bei diesem Beispiel ist der Radius immer gleich. Daher wird die Breite des Leuchtfeldes in der Richtung des Scheitels immer kleiner. Der Radius kann bei jeder Segmentreihe unterschiedlich sein. Zum Beispiel kann der Radius so geändert werden, dass die Segmente in Richtung des Scheitels einen immer kleineren Radius bekommen. Dadurch bildet sich jedes Mal die gleiche Breite des Leuchtfelds unabhängig von den Reihen.In this example, the radius is always the same. Therefore, the width of the luminous field in the direction of the vertex becomes smaller and smaller. The radius can be different for each segment row. For example, the radius can be changed so that the segments get an ever smaller radius in the direction of the vertex. As a result, each time the same width of the light field is formed regardless of the rows.
Es ist aber bei der Werkzeug-Herstellung aufwendig, unterschiedliche Radien in eine Reflexionsoberfläche einzubringen.However, it is costly in tool production to introduce different radii in a reflection surface.
Der "Radius" der Segmente muss nicht unbedingt kreisförmig sein, sondern kann auch eine andere Form aufweisen, beispielsweise kann er ellipsenförmig sein.The "radius" of the segments need not necessarily be circular, but may also have a different shape, for example, it may be ellipsoidal.
Die Form eines Segments muss einem sphärischem Trapez oder gegebenenfalls einem Kreiskegelabschnitt entsprechen. Das heißt, der Längsschnitt muss eine Gerade sein. Wäre der Längsschnitt eines Segments eine Kurve, dann wäre die Form des Segments ein Kugelabschnitt oder ein Ellipsoidabschnitt, der die Lichtstrahlen in alle Richtungen, zum Teil wieder in den Reflektor, reflektieren würde.The shape of a segment must correspond to a spherical trapezoid or possibly a circular cone section. That is, the longitudinal section must be a straight line. If the longitudinal section of a segment were a curve, then the shape of the segment would be a sphere section or an ellipsoidal section that would reflect the light rays in all directions, in part back into the reflector.
Dadurch entstünde immer ein sehr großes Leuchtfeld. Ein relativ kleines Leuchtfeld, beispielsweise mit einem Ausstrahlungswinkel von 20 Grad, kann mit diesen Segmenten nicht gebildet werden, weil der Neigungswinkel des Segments die Reflexionsrichtung der Lichtstrahlen nicht beeinflussen kann.This would always create a very large illuminated field. A relatively small luminous field, for example, with a beam angle of 20 degrees, can not be formed with these segments, because the inclination angle of the segment can not influence the reflection direction of the light beams.
Die
Die
Bei diesem Reflektor wechseln sich in Umfangsrichtung jeweils n benachbarte Segmente mit einem kleineren Radius R1 mit n benachbarten Segmenten mit einem größeren Radius R2 ab, wobei n gleich 3 ist. Diese Radien der Segmente sind in der
Alternativ dazu können sich auch n benachbarte Segmente mit dem kleineren Radius R1 mit m benachbarten Segmenten mit dem größeren Radius R2 in Umfangsrichtung abwechseln, wobei beispielsweise n = 4 und m = 2 ist.Alternatively, also n adjacent segments with the smaller radius R1 can alternate with m adjacent segments with the larger radius R2 in the circumferential direction, for example n = 4 and m = 2.
Ein Segment mit kleinerem Radius R1 reflektiert die Lichtstrahlen breiter und erzeugt folglich ein breiteres Leuchtfeld als ein Segment mit dem größeren Radius R2.A smaller radius segment R1 reflects the light beams wider and thus produces a wider light field than a larger radius segment R2.
Bei dem in
Daraus resultiert insgesamt ein etwa viereckiges gesamtes Leuchtfeld.This results in a total of approximately square overall light field.
Alternativ zu dem in der
Um ein viereckiges Leuchtfeld zu erzeugen, sollte normalerweise der Querschnitt eines Reflektors auch viereckig sein. Die Herstellung eines Werkzeugs für eine solche Reflektorform sowie die Herstellung des zugehörigen Reflektors sind äußerst aufwendig. Ein Reflektor gemäß der Erfindung ist im Unterschied dazu rotationssymmetrisch und kann kostengünstig hergestellt werden.In order to create a quadrangular field, the cross section of a reflector should normally also be square. The production of a tool for such a reflector shape and the production of the associated reflector are extremely expensive. In contrast, a reflector according to the invention is rotationally symmetrical and can be produced inexpensively.
Ein viereckiges Leuchtfeld kann beispielsweise im Zusammenhang mit einer Dentalbeleuchtung gut verwendet werden. Des Weiteren kann sich ein sehr großes rechteckiges Leuchtfeld durch mehrere Reflektoren bilden. Ein derartiges großes rechteckiges Leuchtfeld kann beispielsweise für die Aufnahmebeleuchtung eines Auto-Crash-Tests verwendet werden.A quadrangular light field can be well used, for example, in the context of dental lighting. Furthermore, a very large rectangular light field can form through a plurality of reflectors. Such a large rectangular light field can be used, for example, for the recording illumination of an auto-crash test.
Bei erfindungsgemäßen Reflektoren ist es nicht notwendig, die Reflexionsoberfläche aufzurauhen, weil die Lichtstrahlen durch die Segmente breit reflektiert werden . Die Reflexionsoberfläche kann glänzend eloxiert werden. Dieser Glanz verleiht einer Leuchte ein edles Aussehen. Des weiteren ist ein Reflektor gemäß der Erfindung kostengünstig herstellbar und kalkulierbar. Unter kalkulierbar ist dabei zu verstehen, dass bei der Entwicklung eines konkreten Reflektors mit Hilfe eines Computers die Lichtverteilung simuliert werden kann. Dies ermöglicht die Entwicklung bzw. Konstruktion eines Reflektors, dessen Form ein gewünschtes Leuchtfeld erzeugt.In reflectors according to the invention, it is not necessary to roughen the reflection surface because the light rays are widely reflected by the segments. The reflection surface can be anodized brilliantly. This shine gives a light a noble appearance. Furthermore, a reflector according to the invention is inexpensive to produce and calculable. Under calculable is to be understood that in the development of a specific reflector using a computer, the light distribution can be simulated. This allows the design of a reflector whose shape produces a desired light field.
Claims (17)
dadurch gekennzeichnet, dass das Gesamtleuchtfeld des Reflektors aus mehreren vollkommen kreisförmigen, einander überlagerten Leuchtfeldern (12a, 12b und 12c) besteht, die durch die Segmentreihen in Umfangsrichtung der Reflektorachse (10) erzeugt werden.Rotationally symmetrical reflector (7) whose reflection surface (8) consists of a plurality of segments (9) in the circumferential direction of the reflector axis (10) forming a plurality of radially adjacent rows of segments, wherein the segments are each distributed at a certain angle (α) in a circle and in the longitudinal direction of the reflector axis (10) with different lengths (L1, L2) and angles (β, γ) are arranged, wherein the shape of each segment corresponds to a spherical trapezoid,
characterized in that the total field of the reflector consists of a plurality of completely circular, superimposed light fields (12a, 12b and 12c), which are generated by the rows of segments in the circumferential direction of the reflector axis (10).
dadurch gekennzeichnet, dass der Schnitt durch ein Segment in Längsrichtung der Reflektorachse eine Gerade ist.Reflector according to claim 1,
characterized in that the section through a segment in the longitudinal direction of the reflector axis is a straight line.
dadurch gekennzeichnet, dass jede Segmentreihe in Umfangsrichtung der Reflektorachse (10) ein vollkommen kreisförmiges Leuchtfeld (12a) erzeugt.Reflector according to claim 1 or 2,
characterized in that each segment row in the circumferential direction of the reflector axis (10) generates a completely circular illuminated field (12a).
dadurch gekennzeichnet, dass eines der mehreren, vollkommen kreisförmigen, einander überlagerten Leuchtfelder von zwei oder mehr Segmentreihen erzeugt wird.Reflector according to claim 1 or 2,
characterized in that one of the plurality of completely circular, superposed luminous fields of two or more rows of segments is generated.
dadurch gekennzeichnet, dass er in Radialrichtung mindestens eine Verbindungsstelle (28) von zwei Segmenten (27c und 27d) hat, bei der der Neigungswinkel (ε) des radial inneren Segments (27d) kleiner ist als der Neigungswinkel (δ) des radial äußeren Segments.Reflector according to claim 4,
characterized in that it has in the radial direction at least one connection point (28) of two segments (27c and 27d), wherein the inclination angle (ε) of the radially inner segment (27d) is smaller than the inclination angle (δ) of the radially outer segment.
dadurch gekennzeichnet, dass Segmente einer Reihe in Umfangsrichtung der Reflektorachse (10) einen gleichen Radius haben.Reflector according to one of the preceding claims,
characterized in that segments of a row in the circumferential direction of the reflector axis (10) have a same radius.
dadurch gekennzeichnet, dass alle Segmente der Reflexionsfläche den gleichen Radius (R) haben.Reflector according to one of the preceding claims,
characterized in that all segments of the reflecting surface have the same radius (R).
dadurch gekennzeichnet, dass alle Segmente in Umfangsrichtung der Reflektorachse nach innen gewölbt sind.Reflector according to one of the preceding claims,
characterized in that all segments are curved inwardly in the circumferential direction of the reflector axis.
dadurch gekennzeichnet, dass ein nach innen gewölbtes Segment einer Segmentreihe in Umfangsrichtung beidseitig von einem nach außen gewölbten Segment umgeben ist.Reflector according to one of claims 1 to 7,
characterized in that an inwardly curved segment of a segment row in the circumferential direction is surrounded on both sides by an outwardly curved segment.
dadurch gekennzeichnet, dass die nach außen gewölbten Segmente einen kleineren Radius haben als die nach innen gewölbten Segmente.Reflector according to claim 9,
characterized in that the outwardly curved segments have a smaller radius than the inwardly curved segments.
dadurch gekennzeichnet, dass die Segmente einer Segmentreihe in Umfangsrichtung mindestens zwei unterschiedliche Radien (R1,R2) aufweisen.Reflector according to one of the preceding claims,
characterized in that the segments of a segment row in the circumferential direction have at least two different radii (R1, R2).
dadurch gekennzeichnet, dass sich in einer Segmentreihe n benachbarte Segmente mit kleinerem Radius (R1) mit n benachbarten Segmenten mit größerem Radius (R2) abwechseln.Reflector according to claim 11,
characterized in that in a segment row n adjacent segments of smaller radius (R1) with n adjacent segments of larger radius (R2) alternate.
dadurch gekennzeichnet, dass sich in einer Segmentreihen benachbarte Segmente mit kleinerem Radius (R1) mit benachbarten Segmenten mit größerem Radius (R2) abwechseln, wobei gilt: n < m.Reflector according to claim 11,
characterized in that in a segment rows adjacent segments of smaller radius (R1) alternate with adjacent segments of larger radius (R2), where: n <m.
dadurch gekennzeichnet, dass ein Segment (9a) mit reflektierten Lichtstrahlen ein Leuchtfeld (17a) bildet, das etwa so breit ist, dass ein Ende (20) des Leuchtfeldes den Kreis (21) des endgültigen Leuchtfeldes erreicht, und so lang ist, dass sein anderes Ende (22) etwa in der Mitte des Kreises (21) liegt.Reflector according to one of the preceding claims,
characterized in that a segment (9a) with reflected light beams forms a luminous field (17a) which is approximately as wide that one end (20) of the luminous field reaches the circle (21) of the final luminous field and is so long that it is the other end (22) is located approximately in the middle of the circle (21).
dadurch gekennzeichnet, dass ein Segment mit reflektierten Lichtstrahlen ein Leuchtfeld (23) bildet, das etwa so breit ist, dass das eine Ende (24) des Leuchtfeldes den Kreis (21) des gewünschten Leuchtfeldes erreicht, und etwa so lang ist, dass sein anderes Ende (25) den Kreis (21) erreicht.Reflector according to one of claims 1 to 13,
characterized in that a segment with reflected light beams forms a luminous field (23) which is approximately so broad that one end (24) of the luminous field reaches the circle (21) of the desired luminous field and is about as long that its other End (25) reaches the circle (21).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102007016748A DE102007016748A1 (en) | 2007-04-07 | 2007-04-07 | Reflector for a lamp |
Publications (2)
Publication Number | Publication Date |
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EP1978298A2 true EP1978298A2 (en) | 2008-10-08 |
EP1978298A3 EP1978298A3 (en) | 2008-11-12 |
Family
ID=39495051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP08154055A Withdrawn EP1978298A3 (en) | 2007-04-07 | 2008-04-04 | Reflector for a light |
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EP (1) | EP1978298A3 (en) |
JP (1) | JP2008257251A (en) |
DE (1) | DE102007016748A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2330340A3 (en) * | 2009-12-03 | 2012-09-05 | Mass Technology (H.K.) Limited | Reflector cup and LED lamp comprising the same |
CN102798079A (en) * | 2012-07-04 | 2012-11-28 | 特殊光电科技(中山)有限公司 | Lamp cup for LED (light-emitting diode) lamp |
DE102011081349A1 (en) * | 2011-05-25 | 2012-11-29 | Dilitronics Gmbh | REFLECTOR FOR A STREET LAMP |
DE102011085418A1 (en) * | 2011-10-28 | 2013-05-02 | Trilux Gmbh & Co. Kg | Reflector for semiconductor light sources |
EP2426407A3 (en) * | 2010-09-01 | 2013-11-27 | Taiwan Network Computer & Electronic Co., Ltd. | Lighting fixture equipped with a shaped reflector |
EP3293440A1 (en) * | 2016-09-12 | 2018-03-14 | Bartenbach Holding GmbH | Light set and radiator for same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2428727B1 (en) * | 2010-08-25 | 2013-11-13 | 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 |
CN102661502B (en) * | 2012-04-24 | 2014-04-02 | 埃赛力达科技(深圳)有限公司 | Squama-type reflection lamp and design method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69130738T2 (en) | 1991-04-03 | 1999-09-02 | Flowil Int Lighting | REFLECTOR WITH LAMP |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2174937A (en) * | 1936-12-21 | 1939-10-03 | Dietz Gustav | Reflector |
DE1081393B (en) * | 1937-12-31 | 1960-05-12 | Philips Patentverwaltung | Bell-shaped reflector, which has a number of facets separated from one another by corrugations on its effective surface |
US4021659A (en) * | 1975-10-30 | 1977-05-03 | General Electric Company | Projector lamp reflector |
DE4413370A1 (en) * | 1994-04-19 | 1995-10-26 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Reflector light bulb |
DE19910192C2 (en) * | 1999-03-09 | 2002-04-04 | Schott Auer Gmbh | Reflector with a concave, rotationally symmetrical body and a faceted reflection surface |
JP2001167614A (en) * | 1999-12-08 | 2001-06-22 | Koito Mfg Co Ltd | Indicating lamp for vehicle |
DE10020348B4 (en) * | 2000-04-26 | 2006-02-23 | Tetsuhiro Kano | Reflector for electromagnetic radiation |
DE10048561A1 (en) * | 2000-09-30 | 2002-04-11 | Hella Kg Hueck & Co | Light unit for vehicle, especially headlamp, has reflector and/or light panel facet elements in rows bounded by curved radial lines and shaped to reflect light in accordance with light distribution |
-
2007
- 2007-04-07 DE DE102007016748A patent/DE102007016748A1/en not_active Withdrawn
-
2008
- 2008-04-04 JP JP2008098441A patent/JP2008257251A/en active Pending
- 2008-04-04 EP EP08154055A patent/EP1978298A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69130738T2 (en) | 1991-04-03 | 1999-09-02 | Flowil Int Lighting | REFLECTOR WITH LAMP |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2330340A3 (en) * | 2009-12-03 | 2012-09-05 | Mass Technology (H.K.) Limited | Reflector cup and LED lamp comprising the same |
EP2426407A3 (en) * | 2010-09-01 | 2013-11-27 | Taiwan Network Computer & Electronic Co., Ltd. | Lighting fixture equipped with a shaped reflector |
DE102011081349A1 (en) * | 2011-05-25 | 2012-11-29 | Dilitronics Gmbh | REFLECTOR FOR A STREET LAMP |
WO2012160101A3 (en) * | 2011-05-25 | 2013-05-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Reflector for a streetlamp |
CN103748409A (en) * | 2011-05-25 | 2014-04-23 | 业纳聚合物系统有限公司 | Reflector for streetlamp |
CN103748409B (en) * | 2011-05-25 | 2016-11-09 | 业纳聚合物系统有限公司 | Reflector for street lamp |
DE102011085418A1 (en) * | 2011-10-28 | 2013-05-02 | Trilux Gmbh & Co. Kg | Reflector for semiconductor light sources |
CN102798079A (en) * | 2012-07-04 | 2012-11-28 | 特殊光电科技(中山)有限公司 | Lamp cup for LED (light-emitting diode) lamp |
EP3293440A1 (en) * | 2016-09-12 | 2018-03-14 | Bartenbach Holding GmbH | Light set and radiator for same |
Also Published As
Publication number | Publication date |
---|---|
EP1978298A3 (en) | 2008-11-12 |
DE102007016748A1 (en) | 2008-10-09 |
JP2008257251A (en) | 2008-10-23 |
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