EP2307792A1 - Leuchte - Google Patents
LeuchteInfo
- Publication number
- EP2307792A1 EP2307792A1 EP09776541A EP09776541A EP2307792A1 EP 2307792 A1 EP2307792 A1 EP 2307792A1 EP 09776541 A EP09776541 A EP 09776541A EP 09776541 A EP09776541 A EP 09776541A EP 2307792 A1 EP2307792 A1 EP 2307792A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- light
- profile
- luminaire
- profiles
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000004313 glare Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 description 20
- 230000004907 flux Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 235000019557 luminance Nutrition 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000005401 pressed glass Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S4/00—Lighting devices or systems using a string or strip of light sources
- F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
-
- 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
- F21V7/06—Optical design with parabolic curvature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the present invention relates to a luminaire having a plurality of light-emitting light sources.
- Luminous diodes have long been used as light sources in luminaires. Light-emitting diodes are characterized by low power consumption and a long service life. Meanwhile, it is also known to use LEDs in street lights. In this case, individual light emitting diodes or groups of light emitting diodes can be used. To influence the Ausstrahl characterizing the LEDs they are usually equipped with light-guiding devices transparent type. For example, collimators, auxiliary lenses, lenses or the like can be used. The light-directing devices bundle the light generated in the light-emitting diode in a spatial direction. In addition, the light beam is seeded a specific distribution.
- each light emitting diode or each group of light emitting diodes becomes a very small headlight with special lighting properties.
- the emission directions of the individual light-emitting diodes or of the groups of light-emitting diodes are determined by tilting the light-emitting diode or the group of light-emitting diodes and their positioning in the luminaire housing of the street lamp.
- the light emitting diodes or the groups of light emitting diodes are aligned directly on the target surface, that is, for example, on the surface of a roadway.
- Individual light-emitting diodes or light-emitting diode groups radiate different points of the target surface.
- the superimposition of the individual illuminations of the light-emitting diodes or light-emitting diode groups achieves the desired light intensity distribution on the target surface.
- a disadvantage of this arrangement of LEDs in a street lamp is on the one hand, that the LEDs directly illuminate the target area and therefore are also directly visible. Due to the very small dimensions and high luminous fluxes of the individual light-emitting diodes, very high luminances are produced on the surfaces of the light-emitting diodes or on the attachment optics of the light-emitting diodes. This leads to a strong glare of a viewer. Since the light-emitting diodes or the groups of light-emitting diodes are aligned individually to points on the target surface, a very complex geometry of the mechanical structure of the light is necessary. In addition, the LEDs must be wired and assembled individually or in several groups. This leads to a high production cost and therefore also high costs of the overall system. Therefore, the repair of the light emitting diode device is associated with a high cost and high costs.
- a further disadvantage lies in the collimators frequently used for light bundling the light-emitting diodes.
- the collimators have a relatively low efficiency, which is sometimes only 75%.
- the street lights designed as described above are therefore often inefficient.
- a further disadvantage is that most collimators work on the principle of total reflection of the light emitted by the light emitting diode on the lateral surface of the collimators. If water droplets or condensed moisture now adhere to the lateral surfaces of the collimators, the collimators are deactivated. Therefore, street lights, in which the attachment optics of the light-emitting diodes is formed by collimators tend to be susceptible to failure upon ingress of moisture.
- LED clusters consist of individual light-emitting diodes, which are assembled into a homogeneous group of light-emitting diodes. Often the LEDs are arranged together on a circuit board. The bundles of rays of the individual light-emitting diodes are therefore largely rectified, so that the LED cluster can be regarded as a single light source and therefore can also be compared with a conventional light source.
- the light emitted by the entire light-emitting diode cluster is then passed through an optical attachment.
- the cover glass of street lighting can be designed as a front optic. It is possible to produce the closure glass from pressed glass into which light-directing structures, for example lenticular or prismatic elements, are introduced.
- the luminaire comprises at least one reflector profile extending in the longitudinal direction with a multiplicity of openings and with at least one reflector surface provided on the front side of the reflector profile, the light sources being in the region of the openings on the rear side of the reflector profile at the openings are arranged.
- the light sources in the luminaire according to the invention on the back of the reflector profile at the openings, i. are arranged in or behind the openings of the at least one reflector profile, the light emitted by the light sources is not emitted directly to the surface to be illuminated but on the associated reflector surface and deflected at the reflector surface on the surface to be illuminated.
- the lamp thus emits indirect light, so that glare of the viewer is avoided.
- the light sources are arranged on the back of the reflector profile, a simple attachment of the light sources is possible. Under a longitudinally extending reflector profile, in this case, both a longitudinally straight reflector profile, e.g. for a linear luminaire, as well as a longitudinally curved reflector profile, e.g. a circular reflector profile with a large radius, understood.
- a plurality of the light sources are combined to form a light source module and the rear side of the reflector profile has at least one support surface on which the light source module is arranged.
- the light sources are designed as L ⁇ uchtdiode ⁇ and on a common board arranged. It is then a very simple installation of the light source module, so for example the board with the light emitting diodes arranged thereon possible. As a result, the production cost of the lamp is reduced and the lamp cheaper. In addition, the structural complexity of the luminaire is reduced.
- the apertures in the reflector profile are formed as reflectors and have a reflective lateral surface.
- Each individual light source or each individual light-emitting diode therefore has its own small reflector, by means of which the light from the light source is focused onto the associated, generally opposite, reflector surface. Due to the contour of the light-directing reflector surfaces, the light emitted by the light sources is deflected in the vertical viewing plane in the desired direction.
- the apertures are conical or parabolic.
- the breakthroughs can be made for example by drilling, for example, cone bores or profile bores. Instead of drilling a profit milling can be carried out, which can produce more complex light intensity distributions of the individual light sources.
- a central axis of at least one aperture may extend parallel to a central axis of the light source associated with the aperture. If a light-emitting diode or a light-emitting diode module is used as the light source, then the central axis of the light source corresponds to the surface normal to the board of the light-emitting diodes.
- the breakthrough then has the shape of a straight circular cone. Since the light source is usually arranged centrally in the aperture, the center axis of the aperture is then also perpendicular to the support surface ⁇ of the reflector profile. By such an arrangement, a bundling, symmetrical beam path is achieved.
- a central axis of at least one aperture encloses an angle with a center axis of the light source associated with the aperture, so that the center axis of the aperture is inclined in the longitudinal direction and / or transversely to the longitudinal direction of the reflector profile is.
- the breakthrough then takes the form of an oblique circular cone.
- the central axis of the aperture is inclined to the contact surface ⁇ of the reflector profile and encloses an angle of less than 90 ° with it does not have to be tilted or provided with a superior optics to produce an asymmetric beam path. This is particularly important in street lighting, as they are usually installed on the roadway or on the roadside and therefore should have an asymmetric Lichtenbergu ⁇ g in the horizontal viewing plane.
- Another variant provides that the cross section of the reflector surface is formed perpendicular to the longitudinal axis of the reflector profile by a continuous curve.
- the reflector profile can therefore be easily manufactured, the desired appearance and illumination is achieved.
- the cross section of the reflector surface is formed perpendicular to the longitudinal axis of the reflector profile by a plurality of composite curve segments.
- the reflector surface is then advantageously designed as a Fresnel structure. As a result, the reflector surface is relatively flat.
- the luminaire comprises at least one further reflector profile, wherein the reflector profiles are strip-shaped and two reflector profiles are arranged so that the reflector surfaces of the two Reflekt ⁇ rprofiie at least partially opposite each other and the two reflector profiles each form a pair of reflectors.
- the arranged on the back of the first reflector profile light sources then radiate the opposite reflector surface of the second reflector profile and vice versa.
- the arrangement of the reflector surfaces on the reflector profiles and the formation of breakthroughs in the reflector profiles as reflectors it is possible to realize both the luminous intensity distribution of the entire luminaire and the Lichtstrombündelung the individual light sources with only one component, the reflector profile. This considerably reduces the number of optical components.
- each of the reflector profiles may be substantially straight in its longitudinal extension.
- the reflector profiles thus have a very simple shape, whereby a simple production, for example by extrusion, is made possible.
- a reflector wedge is arranged between the reflector surfaces of the two reflector profiles.
- the two reflector profiles are placed at an angle to each other. This also makes it possible to achieve the necessary in street lighting asymmetry of the light intensity distribution. Typically, the angle between the two reflector profiles is about 5 ⁇ to 10 °.
- the luminaire encompasses at least two pairs of reflectors, each with two reflector profiles lying opposite one another, and the pairs of reflectors are arranged one behind the other in the longitudinal extension of the luminaire.
- the two reflector profiles of each pair of reflectors are placed at an angle to each other.
- the lamp therefore has a fir tree-like structure. This reduces the lateral projection of the lighting system.
- the invention also relates to a reflector profile for a luminaire described above, wherein the reflector profile is curved in only one plane, a plurality of apertures for light sources, a reflector surface and on a back at least one support surface for a light source module.
- the reflector profile is characterized by the fact that it has a very simple shape and therefore can be easily and inexpensively manufactured.
- the apertures may be formed as reflectors and the lateral surfaces of the apertures and the reflector surface may be provided with a light-directing layer.
- FIG. 2 shows the course of the light in the luminaire from FIG. 1, FIG.
- FIG. 3 is a perspective view of a reflector profile of the lamp of FIG. 1 from behind
- FIG. 5 is an enlarged view of the detail V of FIG. 4,
- FIG. 6 perspective view of another embodiment of a reflector profile of the lamp of FIG. 1 from behind
- FIG. 6 7 front view of the reflector profile from FIG. 6, FIG.
- FIG. 8 shows a section through the reflector profile from FIG. 7 along the line VMI-VIII, FIG.
- FIG. 9 shows a section through the reflector profile from FIG. 7 along the line IX-IX, FIG.
- FIG. 10 shows a section through an opening in a reflector profile of the luminaire from FIG. 1, FIG.
- FIG. 11 shows a section through another embodiment of an aperture in a reflector profile of the luminaire from FIG. 1, FIG.
- Fig. 13 shows a cross section through the reflector profile of FIG. 12 perpendicular to its longitudinal extent
- FIG. 14 perspective view of another embodiment of the lamp from below.
- Fig. 1 shows a perspective view of a lamp 1 from below.
- the illustrated luminaire 1 comprises two reflector profiles 3 that extend straight in the longitudinal direction.
- the two reflector profiles 3 are at least partially opposite each other and have an identical construction.
- Each of the reflector profiles 3 has a front 30 facing the interior of the luminaire 1 and a rear side 5 facing away from the front 30.
- the front side 30 of the reflector profiles 3 is formed at least in regions as a reflector surface 4.
- the front side 30 is provided with light-guiding surfaces.
- the surface of the front side 30 of the reflector profiles 3 can be vapor-deposited with reflective layers to form the reflector surfaces 4. It can be provided to roughen the reflector surfaces 4 easily. As a result, the visible luminance is reduced in the lamp 1, thereby increasing the visual comfort.
- each of the reflector profiles 3 comprises two rows of apertures 6, ie they run parallel to a base 7 of the luminaire 1.
- the backs 5 of the reflector profiles 3 have bearing surfaces on which a plurality of lichtemitti ⁇ renden light sources in the region of fürbrüch ⁇ 6 are arranged.
- the arranged on the support surface of the first reflector profile 3 light sources radiate the reflector surface 4 of the second reflector profile 3 and arranged on the contact surface of the second reflector profile 3 light sources radiate the reflector surface 4 of the first reflector profile 3.
- a plurality of the light sources may be combined to form a light source module 8.
- Light sources may preferably be used as light sources, which are combined to form light-emitting diode modules 8.
- the light-emitting diode modules 8 are wired together and can be attached as an entire unit to the backs 5 of the reflector profiles 3.
- the light emitting diodes are arranged behind or in the apertures 6, so that they do not project beyond the reflector surfaces 4 of the respective reflector profile 3.
- the light emitting diode modules 8 are preferably potted and equipped with electronic protection devices. This allows a thermal current limiting. It is also possible to use 8 individual LEDs instead of the light emitting diode modules.
- the light-emitting diode modules 8 are much more robust, less expensive and can be equipped by machine.
- the Leuchtdiodenmodul ⁇ 8 can be easily replaced in case of repair.
- the two reflector profiles 3 of the luminaire 1 are placed at an angle ⁇ to each other, wherein the reflector surfaces 4 of the two reflector profiles 3 are at least partially opposite.
- the angle ⁇ between the two reflector profiles is about 5 ° to 10 °.
- a reflector wedge 9 is arranged between the two reflector profiles 3.
- the luminaire could also comprise a reflector profile which is U-shaped in cross-section and, as described above, is suitable for receiving LED modules.
- This reflector profile could also be designed so that only one of the legs has openings and only the second, opposite leg is provided with a reflector surface.
- the reflector profile is divided in the longitudinal direction between the legs and is thus formed by two strip-shaped profiles.
- FIG. 2 shows the beam path of the light emitted by the light sources 10 in a cross section of the luminaire 1. For the sake of clarity, only the beam paths are shown 11 of the light emitted by the right light source 10 is shown.
- the Reflektorprofi ⁇ 3 are shown in this schematic representation only as lines.
- the reflector profiles 3 thus coincide with their reflector surfaces 4.
- the curves or contours of the light-directing reflector surfaces 4 are calculated relative to the position of the apertures 6 in such a way that the light of the respectively opposite light sources 10 is deflected in the desired direction in the vertical viewing plane.
- the light sources 10 are arranged in or behind the openings 6 of the reflector profile 3e.
- the light emitted by the light source 10 then does not radiate directly downwards onto the surface to be illuminated, but is directed into the horizontal, strikes the reflector surface 4 of the opposite reflector profile 3 and is deflected by the reflector surface 4 such that it emerges from the reflector surface 4 Luminaire 1 emerges and illuminates the desired area.
- FIG. 3 shows a reflector profile 3 for the luminaire 1.
- the luminaire 1 can comprise two or more of these reflector profiles 3.
- the Reflekt ⁇ rprofil 3 extends in the longitudinal direction L and is curved only in one spatial direction, in the present case transverse to the longitudinal direction L of the reflector profile 3.
- the reflector profile 3 is therefore substantially strip-shaped.
- the front side 30 of the reflector profile 3 is preferably coated with a light-directing material and forms a reflector surface 4.
- the reflector profile 3 on two bearing surfaces 12, 13 for attaching light sources.
- the bearing surfaces 12, 13 are formed as two narrow strip-shaped surfaces, in each of which a number of openings 6 is formed.
- a strip-shaped light-emitting diode module can be attached to each of the contact surfaces 12, 13.
- the reflector profiles 3 are installed so that their reflector surfaces 4 are opposite.
- Fig. 4 shows a section of the reflector profile 3 of Fig. 3 transversely to its longitudinal extent L.
- the reflector professional! 3 the reflector surface 4.
- the reflector surface 4 is provided with a reflective layer and its contour is designed to redirect the incident light emitted from an opposite light source into the vertical plane.
- the cross section of the reflector surface 4 is formed perpendicular to the longitudinal extent L by a continuous curve.
- the reflector surface 4 has an arcuate cross-section.
- On the back 5 of the reflector profile 3 are the two bearing surfaces 12, 13 for attaching the light sources, preferably the light emitting diode modules. These bearing surfaces 12, 13 are just trained and allow easy attachment of the light sources. If the reflector profile 3 is installed in a luminaire 1, the bearing surfaces 12, 13 run essentially perpendicular to the base surface 7 of the luminaire 1.
- Fig. 5 shows an enlarged view of the detail V of FIG. 4.
- the openings 6 in the reflector profile 3 are arranged.
- the apertures 6 extend from the bearing surface 12, 13 to the reflector surface 4.
- the apertures 6 are in the form of conical bores.
- the light sources or light emitting diode module are preferably attached to the bearing surfaces 12, 13 in such a way that the light sources are arranged behind the openings 6 or protrude into the openings 6, but do not protrude in front of the reflector surface 4.
- the lateral surfaces of the openings 6 are also provided with reflective layers and thus formed as reflectors.
- FIG. 6 shows a further embodiment of a reflector profile 3 'for the luminaire 1. Also in this case, at least two of the reflector profiles 3 'are inserted into the luminaire 1 such that their reflector surfaces 4' are at least partially opposite one another. In the following, only the differences to the already described reflector profile 3 are shown.
- the Kurw ⁇ nsegmente 14, 15, 16 are preferably arcuate.
- the Kurvensegme ⁇ te 14, 15, 16 are advantageously formed as a Fresen nel Modell. This allows the reflector profile 3 'construct relatively flat.
- the reflector surface 4 'is provided with a reflective layer and its contour is designed to redirect the incident light emitted from an opposite light source into the vertical plane.
- each of the curve or surface segments 14, 15, 16 is assigned a support surface 17, 18, 19.
- the openings 6 are arranged.
- the support surfaces 17, 18, 19 are again formed as strip-shaped areas.
- the bearing surfaces 17, 18, 19 may also be formed as a continuous surface.
- the reflector profile 3 'thus has three rows of openings 6.
- the bearing surfaces 17, 18, 19 are located in a common plane. If the reflector profiles 3 'are installed in the luminaire 1, then this plane is preferably perpendicular to the base 7 of the luminaire 1. This makes it possible to fasten a planar light-emitting diode module to a reflector profile 3'.
- FIG. 7 shows a view of the reflector profile 3 'from FIG. 6 from the front. Again, the reflector surface ⁇ 4 'with the three curve or surface segments 14, 15, 16 can be seen.
- FIG. 8 shows a section through the reflector profile 3 'along the line VII-VIH from FIG. 7. Thus, it is a sectional view parallel to the longitudinal direction L of the reflector profile 3'.
- the central axes 20 of the apertures 6 in the middle row are inclined in the longitudinal direction L of the reflector profile 3 '.
- the central axes of the openings in the other two rows can be inclined in the longitudinal direction L of the reflector profile 3 1 .
- FIG. 9 shows a sectional view of the reflector profile 3 'along the line IX-IX from FIG. 7.
- the apertures 6 in the upper row, ie in the curve segment 14, are inclined downwards so that their central axis 20 points downwards.
- the openings 6 in the lower row, ie in the curve segment 16 are inclined upward, so that their central axis 20 points upward.
- the rays of the Light sources or LEDs in a column thus cross each other.
- the apertures 6 are formed so that the light sources or light emitting diodes of the upper row, ie in the curve segment 14, illuminate the lower curve segment 16 of the reflector surface of an opposite reflector profile and the light sources or light emitting diodes of the lower row, ie in the curve segment 16, illuminate the upper curve segment 14 of the reflector surface of an opposite reflector profile.
- the apertures 6 can be arranged as described above and have an inclination transversely and / or longitudinally to the longitudinal direction L of the reflector profile 3.
- FIG. 10 shows a detail view of an aperture 6 in a reflector profile 3; FIG. 3 '.
- the formation of the reflector profile is not relevant in this case, i. the reflector surface 4; 4 'of the reflector profile 3; 3 'may be formed as a continuous curve or by successive curve segments.
- the opening 6 extends from a rear side 5; 5 'to the reflector surface 4; 4 'of a reflector profile 3; 3 '.
- a light source 10 preferably a light-emitting diode, arranged so that the light source 10 is behind or in the opening 6 and the light emitted by the light source 10 is emitted through the aperture 6.
- the light-emitting diode 10 is located on a carrier board 21.
- the carrier board 21 is on the back 5; 5 'of the reflector profile 3; 3 'attached.
- the aperture 6 is formed as a straight circular cone, with its central axis 20 parallel to the central axis 22 of the light source 10. Since the light source 10 is designed as a light-emitting diode, its central axis 22 corresponds to the surface normal to the Stromplatin ⁇ 21 of the light emitting diode. Since the carrier board 21 just rests against the bearing surface of the reflector profile, the central axis 20 of the aperture 6 is also parallel to the surface normal to the bearing surface of the reflector profile.
- each aperture 6 acts as a focusing reflector for the light source or light-emitting diode 10 arranged in or behind it.
- the aperture 6 and the respective light source 10 therefore form a very small headlight.
- the beam path 23 can be seen in FIG. 10.
- the central axis 20 is parallel to the surface normal 22 of the Leuchtdioden- lyplatin ⁇ 21, a converging, symmetrical beam path 23 achieved.
- FIG. 11 Another embodiment of a breakthrough 6 'is shown in Fig. 11.
- the central axis 20 'of the conical opening 6 1 can be inclined in the longitudinal direction L of the reflector profile 3 and / or transversely to the longitudinal direction L of the reflector profile 3.
- the central axis 20 'thus encloses an angle of less than 90 ° with the bearing surface of the reflector profile.
- an asymmetrical beam path is generated, as shown in FIG. 11 by the light beams 24.
- the light source or LED does not have to be tilted, it is also no superior optics necessary.
- the openings 6, 6 * are produced by bores, for example conical bores.
- the openings may have an at least partially parabolic lateral surface.
- the breakthroughs can then be made by Profilbohru ⁇ gen.
- the breakthroughs can also be produced by a profile milling. As a result, more complex light intensity distributions of the individual light sources or light emitting diodes can be produced.
- a reflector profile 3 is shown in Fig. 12.
- the reflector profile 3 essentially corresponds to the reflector profiles already described. Also, this reflector profile 3 "extends again in a longitudinal direction L. As already described, here too the front side 30" of the reflector profile 3 "is formed at least partially as a reflector surface 4".
- This reflector profile 3 also has openings in, in or behind which light sources can be arranged, as can be seen from Fig. 12, the reflector profile 3" has two rows each with five openings 6 ";6.1”; 6.2 “;6.3”; 6.4 “, the openings 6"; 6.1 “;6.2”; 6.3 “;6.4” formed differently.
- the apertures 6 are in the form of straight circular cones.
- the inclination of the central axes can be at each of the apertures 6.1 “; 6.2 “;6.3”; 6.4 “be formed differently.
- FIG. 13 shows a cross section through the reflector profile 3 "transversely to its longitudinal direction L along the line XIII-XIII
- the front side 30" of the reflector profile 3 is at least partially designed as a reflector surface 4".
- a support surface 25 is provided for attaching light emitting diode modules.
- the apertures 6 extendend through the reflector profile 3" to the front side 30 ".
- the support surfaces for the light source modules or light-emitting diode modules are arranged so that they are arranged in the luminaire essentially perpendicular to the base surface 7 of the luminaire in the installed state of the reflector profile.
- the support surface 25 extends obliquely to the base 7 and thus in the installed state in the lamp 1 with the base 7 an angle ⁇ 90 °.
- the light source modules or light-emitting diode modules can also already be mounted obliquely on the light source module 3 "The center axes 20" of the openings 6 "enclose a right angle with the support surface 25.
- the luminaire 1' shows a luminaire 1 'in which the reflector profiles 3 "are installed, and the luminaire 1' comprises four of these reflector profiles 3".
- the reflector surfaces 4 are calculated such that the light of the light sources or light emitting diodes is deflected in the desired direction in the vertical viewing plane .
- the two pairs of reflectors are arranged in longitudinal extension L 1 of the lamp 1 'one behind the other.
- the reflector profiles 3 "of each reflector pair are positioned at an angle ⁇ 'to one another.”
- the angle ⁇ ' is preferably 5 ° to 10 ° described on Fig.
- each reflector profile 3 has two rows of openings 6 "; 6.1 “;6.2”; 6.3 “;6.4” on.
- the breakthroughs 6 ";6.1”; 6.2 “;6.3”; 6.4 “each reflector profile 3” can be designed differently.
- the six openings 6 "in the right part of the reflector profiles 3" are designed as straight circular cones. This means that the middle The two left-hand openings 6.1 “, 6.3” of the lower row and the two left-hand openings 6.2 “, 6.4” of the upper row, on the other hand, are formed as skewed circular cones.
- the central axes of these apertures enclose with the bearing surface 25 of the reflector profile 3 "an angle smaller than 90" in or transverse to the longitudinal direction L of the reflector profile 3 ", thus achieving an asymmetrical light intensity distribution of the luminaire 1 ', as is desirable in particular for street lighting
- the base area T of the luminaire 1 ' is designed as a plane, but it is also conceivable to arrange a reflector wedge on the base area 7', as described with reference to the first embodiment of the luminaire 1. At both ends the luminaire 1 ' completed with reflector plates 26.
- a light source module or a light-emitting diode module 8 ' is mounted on the bearing surfaces 25 of the reflector profiles 3 "since the bearing surfaces 25 of the reflector profiles 3" are designed as planes, making it very easy to attach the light source or light-emitting diode modules.
- ten light sources or light-emitting diodes can be attached to each of the reflector profiles 3.
- light-emitting diodes with a power of 1 watt are used in this case.
- the lamp V thus comes to a gross luminous flux of about 3,500 to 4,000 lumens.
- the reflector profiles each have both a reflector surface and apertures designed as reflectors for the light sources, it is possible to realize both the light intensity distribution of the entire luminaire and the luminous flux bundling of the individual light sources or light emitting diodes with only one component. This considerably reduces the number of optical components required.
- By provided on the back of the reflector profiles Auflage Formation ⁇ a very simple attachment of the light source modules or LED modules is possible. The required number of components is reduced and the structural complexity considerably reduced. This also reduces the production costs and the associated production costs.
- the emitted light is not emitted directly to the surface to be illuminated, but deflected by the reflector surfaces of the reflector profiles on this surface.
- the visible luminance is reduced in the lamp, which can be further enhanced by a slight roughening of the reflector surfaces. This increases the visual comfort. There no superior optics are required, a high efficiency of the optical system can be achieved.
- the reflector profiles used have a linear character in a substantial direction, i. are substantially straight in their longitudinal extent, they can be made very easily.
- the reflector profiles can be produced by extrusion of a light-directing curve. But it is also a production by pressure or injection molding possible.
- As a material for the reflector profiles preferably aluminum or a plastic is used.
- the aluminum or plastic profiles are vapor-deposited with reflective layers to create the reflector surface. Before vapor deposition, the apertures are made in the aluminum or plastic profiles, so that the lateral surfaces of the apertures are provided with the reflective layer.
- linear or planar pads are provided, where the light sources or LEDs can be attached. These pads allow the use of pre-fabricated linear or planar light emitting diode modules. This also allows the production cost and associated manufacturing costs can be reduced.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008033533A DE102008033533A1 (de) | 2008-07-17 | 2008-07-17 | Leuchte |
PCT/EP2009/002799 WO2010006665A1 (de) | 2008-07-17 | 2009-04-16 | Leuchte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2307792A1 true EP2307792A1 (de) | 2011-04-13 |
EP2307792B1 EP2307792B1 (de) | 2013-09-04 |
Family
ID=39917830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09776541.6A Active EP2307792B1 (de) | 2008-07-17 | 2009-04-16 | Leuchte |
Country Status (7)
Country | Link |
---|---|
US (1) | US8511848B2 (de) |
EP (1) | EP2307792B1 (de) |
JP (1) | JP5311316B2 (de) |
CN (1) | CN102099619B (de) |
DE (2) | DE102008033533A1 (de) |
ES (1) | ES2428087T3 (de) |
WO (1) | WO2010006665A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100165620A1 (en) * | 2008-12-29 | 2010-07-01 | Phoseon Technology, Inc. | Reflector channel |
DE102009037415A1 (de) | 2009-08-13 | 2011-02-17 | Osram Opto Semiconductors Gmbh | Halbleiterlichtquelle |
CN102086989A (zh) * | 2009-12-07 | 2011-06-08 | 北京通力环电气股份有限公司 | 一种led灯具及使用该led灯具的路灯 |
JPWO2013054693A1 (ja) * | 2011-10-14 | 2015-03-30 | シャープ株式会社 | 照明装置 |
US9234649B2 (en) | 2011-11-01 | 2016-01-12 | Lsi Industries, Inc. | Luminaires and lighting structures |
US20130107528A1 (en) * | 2011-11-01 | 2013-05-02 | Lsi Industries, Inc. | Luminaires and lighting structures |
CA2809555C (en) | 2012-05-07 | 2015-07-21 | Abl Ip Holding Llc | Led light fixture |
US9127826B2 (en) | 2013-03-14 | 2015-09-08 | Lsi Industries, Inc. | Indirect lighting luminaire |
USD696449S1 (en) | 2013-03-14 | 2013-12-24 | Lsi Industries, Inc. | Lighting |
US9541255B2 (en) | 2014-05-28 | 2017-01-10 | Lsi Industries, Inc. | Luminaires and reflector modules |
US10732342B2 (en) | 2016-08-10 | 2020-08-04 | Signify Holding B.V. | Indirect luminaire |
US11473768B2 (en) * | 2020-01-10 | 2022-10-18 | Eaton Intelligent Power Limited | Thermally conductive polymer luminaire |
Family Cites Families (23)
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US6318886B1 (en) * | 2000-02-11 | 2001-11-20 | Whelen Engineering Company | High flux led assembly |
JP2002231016A (ja) * | 2001-01-31 | 2002-08-16 | Kanto Auto Works Ltd | 車輌用ヘッドランプ |
ITTO20010464A1 (it) * | 2001-05-18 | 2002-11-18 | Fiat Ricerche | Dispositivo di illuminazione a luminanza controllata. |
US6784357B1 (en) * | 2002-02-07 | 2004-08-31 | Chao Hsiang Wang | Solar energy-operated street-lamp system |
DE20204352U1 (de) * | 2002-03-19 | 2002-06-20 | Alfred Pracht Lichttechnik GmbH, 35232 Dautphetal | Leuchte |
JP3919655B2 (ja) * | 2002-12-02 | 2007-05-30 | スタンレー電気株式会社 | 車両用灯具 |
JP3498290B1 (ja) * | 2002-12-19 | 2004-02-16 | 俊二 岸村 | 白色led照明装置 |
US7008079B2 (en) * | 2003-11-21 | 2006-03-07 | Whelen Engineering Company, Inc. | Composite reflecting surface for linear LED array |
US7281818B2 (en) * | 2003-12-11 | 2007-10-16 | Dialight Corporation | Light reflector device for light emitting diode (LED) array |
DK1557604T3 (da) * | 2004-01-21 | 2006-12-04 | Baro Gmbh & Co Kg | Belysningsanlæg |
ITVI20040032A1 (it) | 2004-03-03 | 2004-06-03 | Beghelli Spa | Apparecchio di illuminazione stradale |
US7255469B2 (en) * | 2004-06-30 | 2007-08-14 | 3M Innovative Properties Company | Phosphor based illumination system having a light guide and an interference reflector |
US7414546B2 (en) * | 2004-07-08 | 2008-08-19 | Honeywell International Inc. | White anti-collision light utilizing light-emitting diode (LED) technology |
TWI288851B (en) * | 2005-03-09 | 2007-10-21 | Hannstar Display Corp | Backlight source module |
DE102005035007B4 (de) * | 2005-07-22 | 2008-03-20 | Erco Leuchten Gmbh | Leuchte |
JP3787145B1 (ja) * | 2005-08-30 | 2006-06-21 | 株式会社未来 | 照明パネル及び照明装置 |
CN101004515A (zh) * | 2006-01-21 | 2007-07-25 | 鸿富锦精密工业(深圳)有限公司 | 直下式背光模组 |
WO2007106411A2 (en) | 2006-03-10 | 2007-09-20 | Dialight Corporation | Light emitting diode module with improved light distribution uniformity |
JP2007311064A (ja) * | 2006-05-16 | 2007-11-29 | Mirai:Kk | 照明装置 |
KR20090026161A (ko) * | 2006-05-25 | 2009-03-11 | 아이2아이씨 코포레이션 | 표면 형태의 광원에 있어서 에너지 효율적인 조명 |
JP2008053049A (ja) * | 2006-08-24 | 2008-03-06 | Erco Leuchten Gmbh | 照明器具 |
JP2008098088A (ja) * | 2006-10-16 | 2008-04-24 | Mirai:Kk | 広域照明装置 |
CN101725905B (zh) * | 2008-10-17 | 2012-07-04 | 富准精密工业(深圳)有限公司 | 发光二极管灯具 |
-
2008
- 2008-07-17 DE DE102008033533A patent/DE102008033533A1/de not_active Ceased
- 2008-07-17 DE DE202008010884U patent/DE202008010884U1/de not_active Expired - Lifetime
-
2009
- 2009-04-16 WO PCT/EP2009/002799 patent/WO2010006665A1/de active Application Filing
- 2009-04-16 US US13/054,497 patent/US8511848B2/en active Active
- 2009-04-16 EP EP09776541.6A patent/EP2307792B1/de active Active
- 2009-04-16 CN CN200980127442.XA patent/CN102099619B/zh active Active
- 2009-04-16 JP JP2011517762A patent/JP5311316B2/ja active Active
- 2009-04-16 ES ES09776541T patent/ES2428087T3/es active Active
Non-Patent Citations (1)
Title |
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See references of WO2010006665A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2307792B1 (de) | 2013-09-04 |
CN102099619B (zh) | 2016-02-24 |
ES2428087T3 (es) | 2013-11-06 |
DE202008010884U1 (de) | 2008-10-30 |
US20110122618A1 (en) | 2011-05-26 |
US8511848B2 (en) | 2013-08-20 |
DE102008033533A1 (de) | 2010-02-11 |
CN102099619A (zh) | 2011-06-15 |
WO2010006665A1 (de) | 2010-01-21 |
JP2011528158A (ja) | 2011-11-10 |
JP5311316B2 (ja) | 2013-10-09 |
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