EP2827050A1 - Lamp - Google Patents
Lamp Download PDFInfo
- Publication number
- EP2827050A1 EP2827050A1 EP14176731.9A EP14176731A EP2827050A1 EP 2827050 A1 EP2827050 A1 EP 2827050A1 EP 14176731 A EP14176731 A EP 14176731A EP 2827050 A1 EP2827050 A1 EP 2827050A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- longitudinal
- light
- rectilinear
- light optics
- support body
- 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
- 238000001125 extrusion Methods 0.000 claims abstract description 32
- 238000003754 machining Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 2
- 230000004313 glare Effects 0.000 description 9
- 230000000295 complement effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- 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
- F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/049—Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
-
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/104—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using feather joints, e.g. tongues and grooves, with or without friction
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- 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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the present invention relates to a luminaire, preferably a rectilinear and oblong luminaire, which is particularly suitable for producing a light band.
- Such a luminaire usually has a rectilinear and elongated support body on which at least one electrical load is arranged and which can be releasably secured to a support profile, which serves for wall mounting or ceiling mounting.
- rectilinear is understood in the present context to mean that a rectilinear body has a longitudinal central axis that extends along a straight line.
- elongate is understood in the present context to mean that an elongated body has a length measured in its longitudinal direction which is greater than a width and height measured in its transverse direction. In particular, the length of the elongated body is at least twice, and preferably at least ten times, its width and height.
- LEDs are typically at least one lighting device or lamp and an associated power electronics.
- modern lamps often replace conventional lamps, such as light bulbs and fluorescent tubes, with energy-saving lamps.
- LEDs also mean OLEDs, where OLED stands for organic LED.
- LEDs In contrast to fluorescent tubes, LEDs each define a punctiform light source. If a plurality of such LEDs are arranged on a circuit board, then results in a series of punctiform light sources. This can be perceived as a loss of comfort or even disturbing, in particular compared to a conventional fluorescent tube.
- the present invention is concerned with the problem of providing an improved embodiment of such a luminaire, which is characterized in particular by improved light emission. At the same time the simplest possible structure is sought, which favors an inexpensive production.
- the invention is based on the general idea of providing the rectilinear and elongate supporting body specifically with at least one rectilinear holding region in which at least one rectilinear and oblong circuit board is mounted, which has a plurality of LEDs arranged along a rectilinear row. Furthermore, each holding region is associated with a rectilinear and oblong light optic, which represents a separate component with respect to the respective circuit board and with respect to the respective support body. The respective light optics is fixed to the support body and arranged so that it covers the respective board.
- the light optics is an extrusion profile.
- the light optics for this purpose is produced from a transparent or translucent plastic for the light emitted by the LEDs in the extrusion process.
- the light optics used in the luminaire according to the invention has in cross section at its rear side facing the respective board a plurality of juxtaposed longitudinal protrusions projecting in the direction of the respective board, while it is rectilinear in cross section on its front side facing away from the respective board.
- the longitudinal prisms define Lichtleitkonturen that are generated directly on the extrusion profile in the production of the light optics, so that the longitudinal prisms are integrally formed in the light optics.
- the light emission of the luminaire can be significantly influenced.
- the configuration presented here in which the longitudinal prisms are formed on the back of the light optics, while the front of the light optics is formed in a straight line in cross section.
- this makes it possible to arrange the light optics on a correspondingly shaped carrier body with its front side flush with a front side of the carrier body, which considerably improves the optical appearance of the luminaire formed thereby.
- the inevitably projecting longitudinal prisms form contours, which can preferably impurities, such as dust and the like accumulate.
- the arrangement of the longitudinal prisms on the back of the light optics they are located in one of the respective board facing area, which is already protected against dust to protect the boards.
- the respective light optics forms a cover of a depression, in which the holding region for receiving the respective circuit board is arranged.
- the luminaire or the support body can be made more compact by the longitudinal prisms arranged on the rear side, since the longitudinal prisms can be positioned relatively close to the relatively small LEDs. In particular, this can efficiently utilize a volume present in the aforementioned recess.
- Particularly advantageous is an embodiment in which the respective board has only a single LED row, which is then preferably arranged centrally on the respective board.
- the longitudinal prisms may be geometrically shaped to align the light emitted by the LEDs by means of refraction, specifically in such a way as to produce a desired emission geometry which, during operation of the luminaire at the front of the respective light optics is emitted or emitted.
- a plurality of longitudinal prisms cooperate to produce a common emission geometry, whereby the light generated by the LEDs can be efficiently utilized to produce a desired emission geometry.
- a desired lighting function can be realized specifically.
- the longitudinal prisms of the rear side are geometrically shaped in such a way that they effect a transverse suppression of the light emitted at the front by means of refraction.
- the transverse glare refers to the longitudinal direction of the lamp. In the case of a transverse glare, a glare effect of the light emitted by the light across the longitudinal direction of the light is reduced.
- the light optics may also be straight in longitudinal section on its front side.
- the front side is flat overall, which simplifies the production of the light optics.
- the light optics in longitudinal section at its front several, juxtaposed, outwardly projecting Have transverse prisms.
- Such transverse prisms like the longitudinal prisms, have a light guiding function and can influence the light emitted by the lamp.
- Particularly useful is a development in which the transverse prisms of the front side are geometrically shaped so that they effect by means of refraction a longitudinal glare of the light emitted at the front.
- the longitudinal glare also refers to the longitudinal direction of the lamp and reduces the glare of the emitted light from the lamp parallel to the longitudinal direction of the lamp.
- a glare of the lamp in the transverse direction and / or in the longitudinal direction is particularly advantageous for powerful LEDs to increase the lighting comfort.
- the transverse prisms can be worked out by machining the extrusion profile integrally on the extrusion profile. For example, it is possible to reshape the extrusion profile by partial hot forming on the front side so as to form the transverse prisms. Likewise, a machining or machining of the extrusion profile is conceivable in order to produce the transverse prisms.
- the transverse prisms may be formed on a separate with respect to the extrusion profile attachment which is attached to the extrusion profile and which forms on its side facing away from the extrusion profile page, the front of the light optics.
- the light optics can also be retrofitted with transverse prisms or with a longitudinal glare.
- the attachment can be glued to the extrusion profile.
- the facing sides of extrusion profile and Attachment be just configured, whereby a large-area contact is simplified.
- the attachment and the extrusion profile are either directly contacted or indirectly via the adhesive used. It is clear that the attachment as well as the optionally used adhesive for the light emitted by the LEDs is transparent or translucent.
- the support body for the respective holding region may each have a recess into which the respective light optics is used for closing the respective recess.
- the light optics then covers the respective board arranged in the recess.
- the recessed housing of the board and the light optics in the support body results in a particularly compact design for the lamp.
- this achieves that the longitudinal prisms are accommodated in the depression, as a result of which the space created in the depression can be utilized efficiently.
- the longitudinal prisms are not recognizable from the outside, whereby an optically high-quality appearance can be realized.
- a longitudinal guide can be formed between the longitudinal sides of the respective light optics on the one hand and the longitudinal sides of the respective recess on the other hand, with the help of which the respective light optics is axially inserted into the support body.
- a longitudinal guide may be formed by a tongue and groove guide.
- the respective longitudinal guide can be formed by a guide contour which is integrally formed on the carrier body in the region of the respective longitudinal side of the depression and cooperates with a complementary counter-contour contour which is integrally formed on the light-optical system on the respective longitudinal side, preferably already during the extrusion process.
- the guide contour can be designed as a spring of a tongue and groove guide, while the mating contour then forms a complementary groove.
- the respective light optics is held by the respective longitudinal guide in a direction of emission of the LEDs by means of positive engagement on the carrier body.
- the respective longitudinal guide is designed as a tongue and groove guide.
- the respective longitudinal guide has a formed on the respective longitudinal side of the light optics longitudinal groove and formed on the respective longitudinal side of the recess longitudinal ridge which engages in the longitudinal groove.
- the respective light optics is recessed in the associated recess, preferably in such a way that the, in particular, flat front side of the light optic is flush with a, in particular flat, front side of the support body.
- the longitudinal prisms can be shaped to produce a symmetrical emission geometry with respect to a central axis of the light optics running perpendicular to the straight front side.
- a symmetrical emission geometry a space adjoining the luminaire in the light propagation direction is illuminated symmetrically.
- a symmetrical emission geometry is also accompanied by a symmetrical geometry of the light optics or a symmetrical arrangement of the longitudinal prisms on the light optics.
- a radiation geometry which comprises a single, continuous, has symmetrical angular range to the central axis, in which the light emission takes place. Within this angular range, a complete illumination of the space adjoining the luminaire in the light propagation direction is thus achieved.
- the light optics wide-beam or deep-beam or extremely deep-beam.
- the light emission can thereby be adapted to different installation situations of the lights, which depends in a ceiling mounting of the lamp in particular from the respective room height.
- the symmetrical light optics in such a way that the emission geometry that can be generated thereby has two angular ranges in which the light emission takes place, which are separated in the area of the central axis apart from any overlapping that is proximal to the light optics, are symmetrical to the central axis and each are continuous.
- two symmetrical angular ranges separated from one another are thus formed. This results in an illumination that spares a region that adjoins the luminaire in the light propagation direction in a straight line to a large extent and, on the other hand, illuminates laterally adjacent regions.
- the longitudinal prisms may be shaped to produce asymmetric emission geometry with respect to a central axis of the light optic that is perpendicular to the straight front. In this way, a light emission is generated, which takes place substantially only on one side of said central axis.
- the support body If only one holding area for accommodating the respective circuit board is provided on the support body, it is a single-flame luminaire. If, however, two or more such holding regions are arranged next to one another on the carrier body, in each of which at least one board can be accommodated, it is a two-lamp or multi-lamp. In the case of a two- or multi-lamp luminaire, the light optics used may in principle be identical. Likewise, different light optics can be used simultaneously on the same support body. This results in versatile possibilities for varying the respective illumination. As a result, the luminaire presented here can be adapted particularly easily to different lighting tasks.
- FIG. 1 1 comprises a rectilinear and oblong luminaire 1, a rectilinear and oblong supporting body 2, and a straight and oblong supporting profile 3.
- the support profile 3 is used to mount the lamp 1 on a wall or ceiling.
- the support section 3 is for example a sheet metal part.
- a current-carrying rail 4 which has a plurality of engagement regions 5, in each of which at least one electrical conductor 6 can extend.
- the current-carrying rail 4 is electrically connected, for example, to a power grid of a building.
- the support body 2 carries at least one electrical load 7, here by a lighting device 8 in conjunction with an associated, in FIG. 3 recognizable power electronics 9 is formed.
- the lighting device 8 is in this case formed by at least one rectilinear and elongated circuit board 10, which carries a plurality of LEDs 11, which are arranged along a rectilinear row. This LED row extends parallel to the longitudinal direction of the lamp 1, ie in the Figures 1 and 2 each perpendicular to the plane of the drawing.
- the support body 2 has at least one rectilinear holding region 12, in which the respective circuit board 10 is arranged and is fixedly connected to the support body 2.
- FIG. 1 shown embodiment, only one holding portion 12 is formed centrally in the support body 2, in which one or more such boards 10 are arranged. Accordingly, the in FIG. 1 shown lamp 1 to a single-lamp 1. In contrast, shows FIG. 2 a two-lamp lamp 1, but without support profile 3. In this case, the support body 2 includes two juxtaposed holding areas 12, in each of which at least one circuit board 10 is arranged.
- the respective circuit board 8 is fastened to the support body 2 in the respective holding region 12 by means of retaining webs 13, which are preferably integrally formed on the support body 2 and engage over the respective board 10 at lateral longitudinal edges and press against the holding region 12 and thereby the circuit board 10 fix on the support body 2.
- the holding webs 13 are plastically deformed for this purpose, preferably by means of a rolling process.
- the support body 2 is preferably an extruded profile, which is made of a light metal, for example aluminum, or of a light metal alloy, for example of an aluminum alloy.
- the support body 2 is locked to the support section 3.
- the support profile 3 has resilient latching regions 14, which cooperate with complementary thereto, formed on the support body 2 locking contours 15 and thus positively locking and / or frictionally lock.
- a retaining clip 16 may be provided, on the one hand is fixed to the support body 2 and the other hand is latched to the support section 3.
- the support body 2 carries at least one connection element 17 which has engagement elements 18 which engage in the engagement regions 5 of the current-carrying rail 4.
- the respective connection element 17 is connected, for example, to the aforementioned power electronics 9, which in turn is connected to the respective lighting device 8.
- the luminaire 1 also has, for each holding region 2, at least one rectilinear and oblong optical system 19, which represents a separate component both with respect to the circuit board 10 and with respect to the carrier body 2.
- the light optics 19 is held in a suitable manner on the support body 2 and arranged thereon so that it covers the respective circuit board 10.
- the support body 2 for the respective holding portion 12 has a recess 20 in which the respective holding portion 12 is recessed with respect to a side facing away from the support section 3 front 21 of the support body 2.
- the light optics 19 is mounted on the support body 2, that closes the respective recess 20.
- the light optics 19 is expediently inserted into the respective recess 20.
- the longitudinal guides 22 are each formed between two mutually applied longitudinal sides 23 of the light optics 19 on the one hand and two mutually facing longitudinal sides 24 of the recess 20.
- the respective longitudinal guide 22 is configured in the manner of a tongue-and-groove guide, wherein a guide contour 25 formed on the respective longitudinal side 24 of the recess 20 cooperates or engages in the form of a spring with a counter-contour 26 complementary thereto. at the respective longitudinal side 23 of the light optics 19 is formed.
- the respective guide contour 25 is integrally formed on the extruded profile of the support body 2.
- the positioning of the respective light optics 19 on or in the respective recess 20 is preferably carried out so that the light optics 19 is substantially flush with the front side 21 of the support body 2.
- the light optics 19 is designed as an extrusion profile.
- the aforementioned counter-contour contours 26 can be formed integrally on the extrusion profile of the light-optical system 19.
- the respective light optics 19 is thus by the respective longitudinal guide 22 in a in the Fig. 1 and 2 by an arrow indicated emission direction 44 of the LEDs 11 and the entire lamp 1 by means of positive engagement on the support body 2 held.
- the respective longitudinal guide 22 is preferably designed as a tongue and groove guide.
- the respective longitudinal guide 22 has a longitudinal groove 26 formed on the respective longitudinal side 23 of the light optics 19 and a longitudinal web 25 formed on the respective longitudinal side 24 of the depression 20, which engages in the longitudinal groove 26.
- the respective light optics 19 is recessed in the associated recess 20, such that the front side 30 of the light optics 19 is flush with a flat front side 21 of the support body 2.
- connection element 17 can be connected in an electrically conductive manner to the support body 2 with the aid of a grounding clip 27.
- the power electronics 9 can be fixed by means of a bracket clip 28 on the support body 2.
- the light optics 19 has a rear side 29 facing the respective circuit board 10 and a front side 30 facing away from the respective circuit board 10.
- the light optics 19 at its rear side 29 a plurality of juxtaposed, projecting longitudinal prisms 31.
- the light optics 19 at its front 30 in cross section is rectilinear.
- the light optics 19, for example, in the embodiments of the FIGS. 7 to 11 also in a longitudinal section, not shown here, perpendicular to the drawing planes of the FIGS. 7 to 11 is to be rectilinear at its front 30.
- the front side 30 of the light optical system 19 is straight both in cross section and in the longitudinal section, as a result of which the front side 30 defines or is plane.
- Such a level is purely exemplary in FIG. 7 indicated and designated 32.
- FIGS. 4 to 5 an embodiment of the light optics 19, wherein the light optics 19 in the longitudinal section of FIG. 4 has at its front 30 a plurality of juxtaposed, projecting transverse prisms 33. While the longitudinal prisms 31 of the back 29 extend parallel to the longitudinal direction of the light optics 19, the transverse prisms 33 of the front 30 extend transversely to the longitudinal direction of the light optics 19. In principle, the in the FIGS. 7 to 11 embodiments shown to be equipped with such transverse prisms 33.
- the transverse prisms 33 are expediently shaped geometrically in such a way that they cause a longitudinal glare of the light emitted on the front side 30 during operation of the luminaire 1 by refraction, ie by refraction of light.
- the transverse prisms 33 can be as in FIG. 5 shown to be integrally formed on the extrusion profile of the light optics 19, by machining the extrusion profile. It is conceivable, for example, a hot forming of the front side 30, the transverse prisms 33rd impress or produce by forming. Furthermore, it is conceivable to machine the extrusion profile on the front side 30 in order to produce the transverse prisms 33.
- FIGS. 4 and 6 an embodiment in which a separate attachment 35 is attached to the extrusion profile 34 in a suitable manner, on which the transverse prisms 33 are formed.
- the attachment 35 may be attached to the extrusion profile 34 in a suitable manner.
- a side facing away from the extrusion profile 34 side of the attachment 35 then forms the front 30 of the light optics 19.
- the attachment 35 is adhered to the extrusion profile 34.
- Attachment 35 and extrusion profile 34 can along a plane 36, the in FIG. 6 is indicated, abut each other.
- the longitudinal prisms 31 are geometrically shaped so that they align the light emitted by the LEDs 11 of the respective circuit board 10 during operation of the luminaire 1 by means of refraction. In this case, this alignment takes place in such a way that an emission geometry 37 for the light emitted at the front 30 of the light optics 19 results. Furthermore, the longitudinal prisms 31 are expediently shaped in such a way that, by refraction, they effect a transverse suppression of the light emitted at the front side 30.
- the longitudinal prisms 31 are geometrically shaped such that the emission geometry 37 generated thereby is symmetrical with respect to a central axis 38 in cross-section.
- the central axis 38 in this case runs perpendicular to the straight front 30 of the light optics 19.
- the longitudinal prisms 31 are geometrically shaped such that the emission geometry 37 generated thereby has a single, continuous angle region 39 in which the light emission takes place.
- FIG. 7 shows an embodiment in which the longitudinal prisms 31 a small Angle range 39 for generating a low-beam Abstrahlgeometrie 37 form.
- the geometric shape of the longitudinal prisms 31, on the other hand, is such that the emission geometry 37 created in this case has two angular regions 40 in which the light emission takes place.
- the two angular regions 40 are each continuous. They are also arranged symmetrically to the central axis 38. However, the two separate angular regions 40 are separated from each other in the region of the central axis 38. This can in principle be continuous, ie along the entire center axis 38. However, as in FIG. 9 form an overlap 41 of the two angular regions 40 near the light optics 19, so that the two angular regions 40 propagate separately only after this overlap 41, ie, distally to the light optics 19.
- the longitudinal prisms 31, which in the embodiments of the FIGS. 7 to 10 each generate a symmetrical Abstrahlgeometrie 37 are symmetrically arranged at the respective light optics 19 itself also with respect to the central axis 38. Accordingly, the entire light optics 19 in these embodiments with respect to the central axis 38 is mirror-symmetrical.
- FIG. 11 shows FIG. 11 an embodiment in which the longitudinal ribs 31 are arranged and formed asymmetrically with respect to the central axis 38. Also, the light optics 19 in this embodiment is no longer mirror-symmetrical to the central axis 38. Such an embodiment also leads to the generation of an asymmetric emission geometry 42, wherein the asymmetry relates again to the central axis 38.
- the asymmetrical emission geometry 42 can analogously to the embodiments of the FIGS. 7 . 8th and 10 a single, continuous angle range 43 include.
- FIG. 1 the embodiment shown is purely exemplary of the asymmetrical light optics 19 FIG. 11 intended.
- FIG. 2 shown embodiment is in both wells 20 each of the asymmetrical light optics 19 from FIG. 11 provided, wherein the two asymmetric light optics 19 are also installed asymmetrically, whereby the two-lamp lamp 1 of FIG. 2 overall produces an asymmetrical light emission.
Abstract
Die vorliegende Erfindung betrifft eine Leuchte (1) mit einem geradlinigen und länglichen Tragkörper (2), der wenigstens einen geradlinigen Haltebereich (12) aufweist, in dem zumindest eine geradlinige und längliche Platine (10) befestigt ist, die mehrere entlang einer geradlinigen Reihe angeordnete LEDs (11) aufweist, wobei jedem Haltebereich (12) je eine geradlinige und längliche Lichtoptik (19) zugeordnet ist, die bezüglich der jeweiligen Platine (10) und des Tragkörpers (2) ein separates Bauteil repräsentiert, am Tragkörper (2) gehalten ist und die jeweilige Platine (10) abdeckt. Besonders vorteilhaft ist die jeweilige Lichtoptik (19) ein Extrusionsprofil, wobei die Lichtoptik (19) im Querschnitt an ihrer der jeweiligen Platine (10) zugewandten Rückseite (29) mehrere, nebeneinander angeordnete, abstehende Längsprismen (31) aufweist und an ihrer von der jeweiligen Platine (10) abgewandten Vorderseite (30) geradlinig ist.The present invention relates to a luminaire (1) comprising a rectilinear and elongated support body (2) having at least one rectilinear support portion (12) in which is mounted at least one rectilinear and elongated board (10) arranged a plurality along a rectilinear row Having LEDs (11), wherein each holding region (12) is associated with a respective rectilinear and oblong light optic (19), which represents a separate component with respect to the respective circuit board (10) and the support body (2), is held on the support body (2) and the respective circuit board (10 ) covers. Particularly advantageous is the respective light optics (19) an extrusion profile, wherein the light optics (19) in cross section at its respective board (10) facing the rear side (29) has a plurality of juxtaposed, projecting longitudinal prisms (31) and at their from the respective Board (10) facing away from the front (30) is rectilinear.
Description
Die vorliegende Erfindung betrifft eine Leuchte, und zwar bevorzugt eine geradlinige und längliche Leuchte, die sich insbesondere zur Erzeugung eines Lichtbands eignet.The present invention relates to a luminaire, preferably a rectilinear and oblong luminaire, which is particularly suitable for producing a light band.
Eine derartige Leuchte besitzt üblicherweise einen geradlinigen und länglichen Tragkörper, an dem wenigstens ein elektrischer Verbraucher angeordnet ist und der lösbar an einem Tragprofil befestigt werden kann, das zur Wandmontage oder Deckenmontage dient.Such a luminaire usually has a rectilinear and elongated support body on which at least one electrical load is arranged and which can be releasably secured to a support profile, which serves for wall mounting or ceiling mounting.
Der Begriff "geradlinig" wird im vorliegenden Zusammenhang so verstanden, dass ein geradliniger Körper eine Längsmittelachse besitzt, die sich entlang einer Geraden erstreckt. Der Begriff "länglich" wird im vorliegenden Zusammenhang so verstanden, dass ein länglicher Körper eine in seiner Längsrichtung gemessene Länge aufweist, die größer ist als eine in seiner Querrichtung gemessene Breite und Höhe. Insbesondere ist die Länge des länglichen Körpers wenigstens doppelt und vorzugsweise mindestens zehnmal so groß wie seine Breite und wie seine Höhe.The term "rectilinear" is understood in the present context to mean that a rectilinear body has a longitudinal central axis that extends along a straight line. The term "elongate" is understood in the present context to mean that an elongated body has a length measured in its longitudinal direction which is greater than a width and height measured in its transverse direction. In particular, the length of the elongated body is at least twice, and preferably at least ten times, its width and height.
Die an einem solchen Tragkörper angebrachten elektrischen Verbraucher sind typischerweise zumindest eine Leuchteinrichtung oder Lampe sowie eine zugehörige Leistungselektronik. Um Energie zu sparen, werden bei modernen Leuchten häufig konventionelle Lampen, wie zum Beispiel Glühbirnen und Leuchtstoffröhren, ersetzt durch Energiesparlampen. Ein besonders hohes Energieeinsparpotential wird dabei in Verbindung mit LEDs gesehen, wobei LED für lichtemittierende Diode steht. Im vorliegenden Zusammenhang werden unter LEDs auch OLEDs verstanden, wobei OLED für organische LED steht.The attached to such a support body electrical consumers are typically at least one lighting device or lamp and an associated power electronics. In order to save energy, modern lamps often replace conventional lamps, such as light bulbs and fluorescent tubes, with energy-saving lamps. A particularly high energy saving potential is seen in connection with LEDs, with LED stands for light emitting diode. In the present context, LEDs also mean OLEDs, where OLED stands for organic LED.
Im Unterschied zu Leuchtstoffröhren definieren LEDs jeweils eine punktförmige Lichtquelle. Sofern an einer Platine mehrere derartige LEDs angeordnet sind, ergibt sich dann eine Reihe punktförmiger Lichtquellen. Dies kann, insbesondere im Vergleich zu einer herkömmlichen Leuchtstoffröhre als Komforteinbuße oder sogar störend empfunden werden.In contrast to fluorescent tubes, LEDs each define a punctiform light source. If a plurality of such LEDs are arranged on a circuit board, then results in a series of punctiform light sources. This can be perceived as a loss of comfort or even disturbing, in particular compared to a conventional fluorescent tube.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine derartige Leuchte eine verbesserte Ausführungsform anzugeben, die sich insbesondere durch eine verbesserte Lichtabstrahlung auszeichnet. Gleichzeitig wird dabei ein möglichst einfacher Aufbau angestrebt, der eine preiswerte Herstellung begünstigt.The present invention is concerned with the problem of providing an improved embodiment of such a luminaire, which is characterized in particular by improved light emission. At the same time the simplest possible structure is sought, which favors an inexpensive production.
Dieses Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matter of the independent claim. Advantageous embodiments are the subject of the dependent claims.
Die Erfindung beruht auf dem allgemeinen Gedanken, den geradlinigen und länglichen Tragkörper gezielt mit wenigstens einem geradlinigen Haltebereich auszustatten, in dem zumindest eine geradlinige und längliche Platine befestigt ist, die mehrere entlang einer geradlinigen Reihe angeordnete LEDs aufweist. Ferner ist jedem Haltebereich je eine geradlinige und längliche Lichtoptik zugeordnet, die bezüglich der jeweiligen Platine und bezüglich des jeweiligen Tragkörpers ein separates Bauteil repräsentiert. Die jeweilige Lichtoptik ist am Tragkörper festgelegt und daran so angeordnet, dass sie die jeweilige Platine abdeckt.The invention is based on the general idea of providing the rectilinear and elongate supporting body specifically with at least one rectilinear holding region in which at least one rectilinear and oblong circuit board is mounted, which has a plurality of LEDs arranged along a rectilinear row. Furthermore, each holding region is associated with a rectilinear and oblong light optic, which represents a separate component with respect to the respective circuit board and with respect to the respective support body. The respective light optics is fixed to the support body and arranged so that it covers the respective board.
Zur Realisierung einer besonders preiswerten Herstellung ist die Lichtoptik ein Extrusionsprofil. Beispielsweise wird die Lichtoptik hierzu aus einem für das von den LEDs emittierte Licht transparenten oder transluzenten Kunststoff im Extrusionsverfahren hergestellt. Durch die Herstellung der Lichtoptik als Extrusionsprofil lassen sich im Querschnitt der Lichtoptik relativ komplexe Geometrien realisieren, mit deren Hilfe eine optische Funktion in die Lichtoptik integriert werden kann. Dementsprechend besitzt die bei der erfindungsgemäßen Leuchte zum Einsatz kommende Lichtoptik im Querschnitt an ihrer der jeweiligen Platine zugewandten Rückseite mehrere, nebeneinander angeordnete, in Richtung zur jeweiligen Platine abstehende Längsprismen, während sie an ihrer von der jeweiligen Platine abgewandten Vorderseite im Querschnitt geradlinig ist. Die Längsprismen definieren dabei Lichtleitkonturen, die unmittelbar am Extrusionsprofil bei der Herstellung der Lichtoptik erzeugt werden, so dass die Längsprismen in der Lichtoptik integral ausgeformt sind. Durch die Ausbildung derartiger Längsprismen lässt sich die Lichtabstrahlung der Leuchte signifikant beeinflussen. Von besonderem Vorteil ist die hier vorgestellte Konfiguration, bei welcher die Längsprismen an der Rückseite der Lichtoptik ausgebildet sind, während die Vorderseite der Lichtoptik im Querschnitt geradlinig ausgebildet ist. Zum einen ist es dadurch möglich, die Lichtoptik an einem entsprechend geformten Tragkörper mit ihrer Vorderseite bündig zu einer Vorderseite des Tragkörpers anzuordnen, was die optische Anmutung der dadurch gebildeten Leuchte erheblich verbessert. Zum anderen bilden die zwangsläufig abstehenden Längsprismen Konturen, an denen sich bevorzugt Verunreinigungen, wie Staub und dergleichen anlagern können. Durch die Anordnung der Längsprismen an der Rückseite der Lichtoptik befinden sie sich in einem der jeweiligen Platine zugewandten Bereich, der ohnehin zum Schutz der Platinen staubgeschützt ist. Insbesondere bildet nämlich die jeweilige Lichtoptik eine Abdeckung einer Vertiefung, in welcher der Haltebereich zur Aufnahme der jeweiligen Platine angeordnet ist. Auf diese Weise kann die Gefahr einer störenden Verunreinigung der Längsprismen erheblich reduziert werden. Ferner kann die Leuchte bzw. der Tragkörper durch die an der Rückseite angeordneten Längsprismen kompakter bauen, da die Längsprismen relativ nah bei den relativ kleinen LEDs positioniert werden können. Insbesondere lässt sich dadurch ein in vorstehend genannter Vertiefung vorliegendes Volumen effizient ausnutzen. Besonders vorteilhaft ist eine Ausführungsform, bei welcher die jeweilige Platine nur eine einzige LED-Reihe besitzt, die dann bevorzugt mittig an der jeweiligen Platine angeordnet ist.To realize a particularly inexpensive production, the light optics is an extrusion profile. For example, the light optics for this purpose is produced from a transparent or translucent plastic for the light emitted by the LEDs in the extrusion process. By producing the light optics as an extrusion profile In the cross-section of the light optics relatively complex geometries can be realized with the help of which an optical function can be integrated into the light optics. Correspondingly, the light optics used in the luminaire according to the invention has in cross section at its rear side facing the respective board a plurality of juxtaposed longitudinal protrusions projecting in the direction of the respective board, while it is rectilinear in cross section on its front side facing away from the respective board. The longitudinal prisms define Lichtleitkonturen that are generated directly on the extrusion profile in the production of the light optics, so that the longitudinal prisms are integrally formed in the light optics. By forming such longitudinal prisms, the light emission of the luminaire can be significantly influenced. Of particular advantage is the configuration presented here, in which the longitudinal prisms are formed on the back of the light optics, while the front of the light optics is formed in a straight line in cross section. On the one hand, this makes it possible to arrange the light optics on a correspondingly shaped carrier body with its front side flush with a front side of the carrier body, which considerably improves the optical appearance of the luminaire formed thereby. On the other hand, the inevitably projecting longitudinal prisms form contours, which can preferably impurities, such as dust and the like accumulate. The arrangement of the longitudinal prisms on the back of the light optics, they are located in one of the respective board facing area, which is already protected against dust to protect the boards. In particular, the respective light optics forms a cover of a depression, in which the holding region for receiving the respective circuit board is arranged. In this way, the risk of disturbing contamination of the longitudinal prisms can be significantly reduced. Furthermore, the luminaire or the support body can be made more compact by the longitudinal prisms arranged on the rear side, since the longitudinal prisms can be positioned relatively close to the relatively small LEDs. In particular, this can efficiently utilize a volume present in the aforementioned recess. Particularly advantageous is an embodiment in which the respective board has only a single LED row, which is then preferably arranged centrally on the respective board.
Gemäß einer anderen vorteilhaften Ausführungsform können die Längsprismen geometrisch so geformt sein, dass sie das von den LEDs abgestrahlte Licht mittels Refraktion bzw. Lichtbrechung ausrichten, und zwar gezielt derart, dass dadurch eine gewünschte Abstrahlgeometrie erzeugt wird, die im Betrieb der Leuchte an der Vorderseite der jeweiligen Lichtoptik emittiert bzw. abgestrahlt wird. Somit wirken mehrere Längsprismen zum Erzeugen einer gemeinsamen Abstrahlgeometrie zusammen, wodurch das von den LEDs erzeugte Licht effizient genutzt werden kann, um eine gewünschte Abstrahlgeometrie zu erzeugen. Somit kann je nach Aufgabe der Leuchte eine gewünschte Beleuchtungsfunktion gezielt realisiert werden.According to another advantageous embodiment, the longitudinal prisms may be geometrically shaped to align the light emitted by the LEDs by means of refraction, specifically in such a way as to produce a desired emission geometry which, during operation of the luminaire at the front of the respective light optics is emitted or emitted. Thus, a plurality of longitudinal prisms cooperate to produce a common emission geometry, whereby the light generated by the LEDs can be efficiently utilized to produce a desired emission geometry. Thus, depending on the task of the lamp a desired lighting function can be realized specifically.
Besonders vorteilhaft ist eine Ausführungsform, bei welcher die Längsprismen der Rückseite geometrisch so geformt sind, dass sie mittels Refraktion eine Querentblendung des an der Vorderseite emittierten Lichts bewirken. Die Querentblendung bezieht sich dabei auf die Längsrichtung der Leuchte. Bei einer Querentblendung wird eine Blendwirkung des von der Leuchte emittierten Lichts quer zur Längsrichtung der Leuchte reduziert.Particularly advantageous is an embodiment in which the longitudinal prisms of the rear side are geometrically shaped in such a way that they effect a transverse suppression of the light emitted at the front by means of refraction. The transverse glare refers to the longitudinal direction of the lamp. In the case of a transverse glare, a glare effect of the light emitted by the light across the longitudinal direction of the light is reduced.
Bei einer anderen Ausführungsform kann die Lichtoptik auch im Längsschnitt an ihrer Vorderseite gerade sein. Hierdurch wird die Vorderseite insgesamt eben, was die Herstellung der Lichtoptik vereinfacht.In another embodiment, the light optics may also be straight in longitudinal section on its front side. As a result, the front side is flat overall, which simplifies the production of the light optics.
Bei einer hierzu alternativen Ausführungsform kann die Lichtoptik im Längsschnitt an ihrer Vorderseite mehrere, nebeneinander angeordnete, nach außen abstehende Querprismen aufweisen. Derartige Querprismen besitzen ebenso wie die Längsprismen eine Lichtleitfunktion und können das von der Leuchte emittierte Licht beeinflussen. Besonders zweckmäßig ist eine Weiterbildung, bei welcher die Querprismen der Vorderseite geometrisch so geformt sind, dass sie mittels Refraktion eine Längsentblendung des an der Vorderseite emittierten Lichts bewirken. Die Längsentblendung bezieht sich dabei ebenfalls auf die Längsrichtung der Leuchte und reduziert die Blendwirkung des von der Leuchte emittierten Lichts parallel zur Längsrichtung der Leuchte.In an alternative embodiment, the light optics in longitudinal section at its front several, juxtaposed, outwardly projecting Have transverse prisms. Such transverse prisms, like the longitudinal prisms, have a light guiding function and can influence the light emitted by the lamp. Particularly useful is a development in which the transverse prisms of the front side are geometrically shaped so that they effect by means of refraction a longitudinal glare of the light emitted at the front. The longitudinal glare also refers to the longitudinal direction of the lamp and reduces the glare of the emitted light from the lamp parallel to the longitudinal direction of the lamp.
Eine Entblendung der Leuchte in Querrichtung und/oder in Längsrichtung ist insbesondere bei leistungsfähigen LEDs von besonderem Vorteil, um den Beleuchtungskomfort zu steigern.A glare of the lamp in the transverse direction and / or in the longitudinal direction is particularly advantageous for powerful LEDs to increase the lighting comfort.
Bei einer anderen Weiterbildung können die Querprismen durch Bearbeitung des Extrusionsprofils integral am Extrusionsprofil ausgearbeitet sein. Beispielsweise ist es möglich, das Extrusionsprofil durch partielle Heißumformung an der Vorderseite so umzuformen, dass dabei die Querprismen entstehen. Ebenso ist eine spanabhebende bzw. spanende Bearbeitung des Extrusionsprofils denkbar, um daran die Querprismen zu erzeugen.In another development, the transverse prisms can be worked out by machining the extrusion profile integrally on the extrusion profile. For example, it is possible to reshape the extrusion profile by partial hot forming on the front side so as to form the transverse prisms. Likewise, a machining or machining of the extrusion profile is conceivable in order to produce the transverse prisms.
Bei einer hierzu alternativen Ausführungsform können die Querprismen an einem bezüglich des Extrusionsprofils separaten Anbauteil ausgebildet sein, das am Extrusionsprofil befestigt ist und das an seiner vom Extrusionsprofil abgewandten Seite die Vorderseite der Lichtoptik bildet. Durch diese Maßnahme kann die Lichtoptik auch nachträglich mit Querprismen bzw. mit einer Längsentblendung ausgestattet werden.In an alternative embodiment, the transverse prisms may be formed on a separate with respect to the extrusion profile attachment which is attached to the extrusion profile and which forms on its side facing away from the extrusion profile page, the front of the light optics. By this measure, the light optics can also be retrofitted with transverse prisms or with a longitudinal glare.
Beispielsweise kann das Anbauteil mit dem Extrusionsprofil verklebt werden. Zweckmäßig können die einander zugewandten Seiten von Extrusionsprofil und Anbauteil eben konfiguriert sein, wodurch eine großflächige Kontaktierung vereinfacht ist. Das Anbauteil und das Extrusionsprofil sind dabei entweder unmittelbar kontaktiert oder über den verwendeten Klebstoff mittelbar. Es ist klar, dass auch das Anbauteil sowie der gegebenenfalls verwendete Klebstoff für das von den LEDs emittierte Licht transparent bzw. transluzent ist.For example, the attachment can be glued to the extrusion profile. Appropriately, the facing sides of extrusion profile and Attachment be just configured, whereby a large-area contact is simplified. The attachment and the extrusion profile are either directly contacted or indirectly via the adhesive used. It is clear that the attachment as well as the optionally used adhesive for the light emitted by the LEDs is transparent or translucent.
Bei einer anderen vorteilhaften Ausführungsform kann der Tragkörper für den jeweiligen Haltebereich je eine Vertiefung aufweisen, in welche die jeweilige Lichtoptik zum Verschließen der jeweiligen Vertiefung eingesetzt ist. Gleichzeitig deckt die Lichtoptik dann die jeweilige, in der Vertiefung angeordnete Platine ab. Durch die vertiefte Unterbringung der Platine und der Lichtoptik im Tragkörper ergibt sich eine besonders kompakte Bauform für die Leuchte. Gleichzeitig wird dadurch erreicht, dass die Längsprismen in der Vertiefung untergebracht sind, wodurch der in der Vertiefung geschaffene Raum effizient ausgenutzt werden kann. Insbesondere sind dadurch die Längsprismen von außen nicht erkennbar, wodurch eine optisch hochwertige Anmutung realisierbar ist.In another advantageous embodiment, the support body for the respective holding region may each have a recess into which the respective light optics is used for closing the respective recess. At the same time, the light optics then covers the respective board arranged in the recess. The recessed housing of the board and the light optics in the support body results in a particularly compact design for the lamp. At the same time, this achieves that the longitudinal prisms are accommodated in the depression, as a result of which the space created in the depression can be utilized efficiently. In particular, the longitudinal prisms are not recognizable from the outside, whereby an optically high-quality appearance can be realized.
Entsprechend einer vorteilhaften Weiterbildung kann zwischen den Längsseiten der jeweiligen Lichtoptik einerseits und den Längsseiten der jeweiligen Vertiefung andererseits je eine Längsführung ausgebildet sein, mit deren Hilfe die jeweilige Lichtoptik axial in den Tragkörper eingesteckt ist. Beispielsweise kann eine derartige Längsführung durch eine Nut-Feder-Führung gebildet sein. Insbesondere kann die jeweilige Längsführung durch eine am Tragkörper im Bereich der jeweiligen Längsseite der Vertiefung integral ausgeformte Führungskontur gebildet sein, die mit einer dazu komplementären Gegenführungskontur zusammenwirkt, die an der Lichtoptik an der jeweiligen Längsseite integral ausgeformt ist, vorzugsweise bereits im Rahmen des Extrudierverfahrens.According to an advantageous development, a longitudinal guide can be formed between the longitudinal sides of the respective light optics on the one hand and the longitudinal sides of the respective recess on the other hand, with the help of which the respective light optics is axially inserted into the support body. For example, such a longitudinal guide may be formed by a tongue and groove guide. In particular, the respective longitudinal guide can be formed by a guide contour which is integrally formed on the carrier body in the region of the respective longitudinal side of the depression and cooperates with a complementary counter-contour contour which is integrally formed on the light-optical system on the respective longitudinal side, preferably already during the extrusion process.
Beispielsweise kann die Führungskontur als Feder einer Nut-Feder-Führung konzipiert sein, während die Gegenführungskontur dann eine dazu komplementäre Nut bildet.For example, the guide contour can be designed as a spring of a tongue and groove guide, while the mating contour then forms a complementary groove.
Somit kann insbesondere vorgesehen sein, dass die jeweilige Lichtoptik durch die jeweilige Längsführung in einer Abstrahlrichtung der LEDs mittels Formschluss am Tragkörper gehalten ist. Außerdem kann vorgesehen sein, dass die jeweilige Längsführung als Nut-Feder-Führung ausgestaltet ist. Insbesondere kann gemäß einer Weiterbildung vorgesehen sein, dass die jeweilige Längsführung eine an der jeweiligen Längsseite der Lichtoptik ausgebildete Längsnut und einen an der jeweiligen Längsseite der Vertiefung ausgebildeten Längssteg aufweist, der in die Längsnut eingreift.Thus, it can be provided, in particular, that the respective light optics is held by the respective longitudinal guide in a direction of emission of the LEDs by means of positive engagement on the carrier body. In addition, it can be provided that the respective longitudinal guide is designed as a tongue and groove guide. In particular, it can be provided according to a development that the respective longitudinal guide has a formed on the respective longitudinal side of the light optics longitudinal groove and formed on the respective longitudinal side of the recess longitudinal ridge which engages in the longitudinal groove.
Bei einer optionalen Ausgestaltung kann vorgesehen sein, dass die jeweilige Lichtoptik in der zugehörigen Vertiefung versenkt angeordnet ist, vorzugsweise derart, dass die, insebsondere ebene, Vorderseite der Lichtoptik bündig mit einer, insbesondere ebenen, Vorderseite des Tragkörpers abschließt.In an optional embodiment, it may be provided that the respective light optics is recessed in the associated recess, preferably in such a way that the, in particular, flat front side of the light optic is flush with a, in particular flat, front side of the support body.
Bei einer anderen Ausführungsform können die Längsprismen zum Erzeugen einer bezüglich einer senkrecht zur geraden Vorderseite verlaufende Mittelachse der Lichtoptik symmetrischen Abstrahlgeometrie geformt sein. Bei einer symmetrischen Abstrahlgeometrie wird ein sich in der Lichtausbreitungsrichtung an die Leuchte anschließender Raum symmetrisch ausgeleuchtet. Eine symmetrische Abstrahlgeometrie geht dabei auch mit einer symmetrischen Geometrie der Lichtoptik bzw. einer symmetrischen Anordnung der Längsprismen an der Lichtoptik einher.In another embodiment, the longitudinal prisms can be shaped to produce a symmetrical emission geometry with respect to a central axis of the light optics running perpendicular to the straight front side. In the case of a symmetrical emission geometry, a space adjoining the luminaire in the light propagation direction is illuminated symmetrically. A symmetrical emission geometry is also accompanied by a symmetrical geometry of the light optics or a symmetrical arrangement of the longitudinal prisms on the light optics.
Bei einer Weiterbildung einer derartigen symmetrischen Lichtoptik kann vorgesehen sein, eine Abstrahlgeometrie zu erzeugen, die einen einzigen, durchgehenden, zur Mittelachse symmetrischen Winkelbereich aufweist, in dem die Lichtemission erfolgt. Innerhalb dieses Winkelbereichs wird somit eine vollständige Ausleuchtung des in der Lichtausbreitungsrichtung an die Leuchte anschließenden Raums erzielt. Hierbei ist es grundsätzlich möglich, die Lichtoptik breitstrahlend oder tiefstrahlend oder extrem tiefstrahlend auszugestalten. Beispielsweise kann die Lichtabstrahlung hierdurch an unterschiedliche Einbausituationen der Leuchten angepasst werden, die bei einer Deckenmontage der Leuchte in besonderem Maße von der jeweiligen Raumhöhe abhängt.In a further development of such a symmetrical light optics, it may be provided to produce a radiation geometry which comprises a single, continuous, has symmetrical angular range to the central axis, in which the light emission takes place. Within this angular range, a complete illumination of the space adjoining the luminaire in the light propagation direction is thus achieved. In this case, it is basically possible to design the light optics wide-beam or deep-beam or extremely deep-beam. For example, the light emission can thereby be adapted to different installation situations of the lights, which depends in a ceiling mounting of the lamp in particular from the respective room height.
Alternativ ist es hierzu auch möglich, die symmetrische Lichtoptik so auszugestalten, dass die damit erzeugbare Abstrahlgeometrie zwei Winkelbereiche aufweist, in denen die Lichtemission erfolgt, die im Bereich der Mittelachse abgesehen von einer gegebenenfalls vorhandenen zur Lichtoptik proximalen Überlappung getrennt sind, zur Mittelachse symmetrisch sind und jeweils für sich durchgehend sind. Anstelle eines einzigen Winkelbereichs werden somit zwei in der Mitte voneinander getrennte symmetrische Winkelbereiche ausgebildet. Hierdurch ergibt sich eine Ausleuchtung, die einen sich geradlinig an die Leuchte in der Lichtausbreitungsrichtung anschließenden Bereich weitgehend ausspart und dagegen seitlich daran angrenzende Bereiche ausleuchtet.Alternatively, it is also possible to design the symmetrical light optics in such a way that the emission geometry that can be generated thereby has two angular ranges in which the light emission takes place, which are separated in the area of the central axis apart from any overlapping that is proximal to the light optics, are symmetrical to the central axis and each are continuous. Instead of a single angular range, two symmetrical angular ranges separated from one another are thus formed. This results in an illumination that spares a region that adjoins the luminaire in the light propagation direction in a straight line to a large extent and, on the other hand, illuminates laterally adjacent regions.
Bei einer anderen Ausführungsform können die Längsprismen zum Erzeugen einer bezüglich einer senkrecht zur geraden Vorderseite verlaufende Mittelachse der Lichtoptik asymmetrischen Abstrahlgeometrie geformt sein. Auf diese Weise wird eine Lichtabstrahlung erzeugt, die im Wesentlichen nur auf einer Seite besagter Mittelachse erfolgt.In another embodiment, the longitudinal prisms may be shaped to produce asymmetric emission geometry with respect to a central axis of the light optic that is perpendicular to the straight front. In this way, a light emission is generated, which takes place substantially only on one side of said central axis.
Sofern an dem Tragkörper nur ein Haltebereich zur Unterbringung der jeweiligen Platine vorgesehen ist, handelt es sich um eine einflammige Leuchte. Sind am Tragkörper nebeneinander jedoch zwei oder mehr derartige Haltebereiche angeordnet, in denen jeweils wenigstens eine Platine untergebracht werden kann, handelt es sich um eine zweiflammige oder mehrflammige Leuchte. Bei einer zwei- oder mehrflammigen Leuchte können die zum Einsatz kommenden Lichtoptiken grundsätzlich identisch sein. Ebenso können verschiedene Lichtoptiken gleichzeitig am selben Tragkörper zum Einsatz kommen. Hierdurch ergeben sich vielseitige Möglichkeiten zur Variation der jeweiligen Ausleuchtung. Hierdurch lässt sich die hier vorgestellte Leuchte besonders einfach an verschiedene Beleuchtungsaufgaben anpassen.If only one holding area for accommodating the respective circuit board is provided on the support body, it is a single-flame luminaire. If, however, two or more such holding regions are arranged next to one another on the carrier body, in each of which at least one board can be accommodated, it is a two-lamp or multi-lamp. In the case of a two- or multi-lamp luminaire, the light optics used may in principle be identical. Likewise, different light optics can be used simultaneously on the same support body. This results in versatile possibilities for varying the respective illumination. As a result, the luminaire presented here can be adapted particularly easily to different lighting tasks.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Komponenten beziehen.Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.
Es zeigen, jeweils schematisch,
- Fig. 1
- einen Querschnitt durch eine Leuchte mit einem Tragkörper und einem Tragprofil,
- Fig. 2
- ein Querschnitt wie in
Figur 1 , jedoch bei einer anderen Ausführungsform und ohne Tragprofil, - Fig. 3
- eine Seitenansicht des Tragkörpers,
- Fig. 4
- eine Seitenansicht einer Lichtoptik,
- Fig. 5
- eine isometrische Ansicht der Lichtoptik,
- Fig. 6
- ein Querschnitt der Lichtoptik, jedoch bei einer anderen Ausführungsform,
- Fig. 7-11
- jeweils einen Querschnitt der Lichtoptik mit zugehöriger Abstrahlgeometrie, bei verschiedenen Ausführungsformen.
- Fig. 1
- a cross section through a lamp with a support body and a support profile,
- Fig. 2
- a cross section as in
FIG. 1 but in another embodiment and without support profile, - Fig. 3
- a side view of the support body,
- Fig. 4
- a side view of a light optics,
- Fig. 5
- an isometric view of the light optics,
- Fig. 6
- a cross section of the light optics, but in another embodiment,
- Fig. 7-11
- each a cross section of the light optics with associated radiating geometry, in various embodiments.
Entsprechend
Der Tragkörper 2 trägt wenigstens einen elektrischen Verbraucher 7, der hier durch eine Leuchteinrichtung 8 in Verbindung mit einer zugehörigen, in
Bei den in den
Der Tragkörper 2 ist mit dem Tragprofil 3 verrastet. Hierzu besitzt das Tragprofil 3 federnde Rastbereiche 14, die mit dazu komplementären, am Tragkörper 2 ausgeformten Rastkonturen 15 zusammenwirken und damit formschlüssig und/oder kraftschlüssig verrasten. Zusätzlich kann eine Halteklammer 16 vorgesehen sein, die einerseits am Tragkörper 2 festgelegt ist und die andererseits am Tragprofil 3 verrastet ist. Der Tragkörper 2 trägt an einer vom jeweiligen Haltebereich 12 abgewandten Rückseite zumindest ein Anschlusselement 17, das Eingriffselemente 18 aufweist, die in die Eingriffsbereiche 5 der Stromführungsschiene 4 eingreifen. Hierdurch können die für den jeweiligen Anwendungsfall erforderlichen elektrischen Leiter 6 der Stromführungsschiene 4 gezielt elektrisch kontaktiert werden. Das jeweilige Anschlusselement 17 ist beispielsweise mit der vorstehend genannten Leistungselektronik 9 verbunden, die ihrerseits mit der jeweiligen Leuchteinrichtung 8 verbunden ist.The
Die Leuchte 1 weist außerdem für jeden Haltebereich 2 zumindest eine geradlinige und längliche Lichtoptik 19 auf, die sowohl bezüglich der Platine 10 als auch bezüglich des Tragkörpers 2 ein separates Bauteil darstellt. Die Lichtoptik 19 ist auf geeignete Weise am Tragkörper 2 gehalten und daran so angeordnet, dass sie die jeweilige Platine 10 abdeckt. Im Beispiel weist der Tragkörper 2 für den jeweiligen Haltebereich 12 eine Vertiefung 20 auf, in welcher der jeweilige Haltebereich 12 bezüglich einer vom Tragprofil 3 abgewandten Vorderseite 21 des Tragkörpers 2 vertieft angeordnet ist. Die Lichtoptik 19 ist dabei so am Tragkörper 2 angebracht, dass die die jeweilige Vertiefung 20 verschließt. Hierzu wird die Lichtoptik 19 zweckmäßig in die jeweilige Vertiefung 20 eingesetzt. Dies kann bevorzugt mit Hilfe von Längsführungen 22 realisiert werden, die ein axiales Einstecken der Lichtoptik 19 in die jeweilige Vertiefung 20 ermöglichen. Die Längsführungen 22 sind dabei jeweils zwischen zwei voneinander angewandten Längsseiten 23 der Lichtoptik 19 einerseits und zwei einander zugewandten Längsseiten 24 der Vertiefung 20 ausgebildet. Bei den hier gezeigten Ausführungsformen ist die jeweilige Längsführung 22 nach Art einer Nut-Feder-Führung ausgestaltet, wobei eine an der jeweiligen Längsseite 24 der Vertiefung 20 ausgebildete Führungskontur 25 in Form einer Feder mit einer dazu komplementären Gegenführungskontur 26 zusammenwirkt bzw. in Eingriff steht, die an der jeweiligen Längsseite 23 der Lichtoptik 19 ausgebildet ist. Dabei ist die jeweilige Führungskontur 25 integral am Strangprofil des Tragkörpers 2 ausgeformt. Die Positionierung der jeweiligen Lichtoptik 19 an bzw. in der jeweiligen Vertiefung 20 erfolgt bevorzugt so, dass die Lichtoptik 19 im Wesentlichen bündig mit der Vorderseite 21 des Tragkörpers 2 abschließt.The luminaire 1 also has, for each holding
Die Lichtoptik 19 ist als Extrusionsprofil ausgeführt. Insbesondere können die zuvor genannten Gegenführungskonturen 26 integral am Extrusionsprofil der Lichtoptik 19 ausgeformt sein.The
Die jeweilige Lichtoptik 19 ist somit durch die jeweilige Längsführung 22 in einer in den
Wie erwähnt ist die jeweilige Längsführung 22 bevorzugt als Nut-Feder-Führung ausgestaltet. Hierzu weist die jeweilige Längsführung 22 eine an der jeweiligen Längsseite 23 der Lichtoptik 19 ausgebildete Längsnut 26 und einen an der jeweiligen Längsseite 24 der Vertiefung 20 ausgebildeten Längssteg 25 auf, der in die Längsnut 26 eingreift.As mentioned, the respective
Ferner ist bevorzugt, dass die jeweilige Lichtoptik 19 in der zugehörigen Vertiefung 20 versenkt angeordnet ist, derart, dass die Vorderseite 30 der Lichtoptik 19 bündig mit einer ebenen Vorderseite 21 des Tragkörpers 2 abschließt.Further, it is preferred that the respective
Das Anschlusselement 17 kann mit Hilfe einer Erdungsklammer 27 elektrisch leitend mit dem Tragkörper 2 verbunden sein.The
Gemäß
Entsprechend den
Im Unterschied dazu zeigen die
Die Querprismen 33 sind zweckmäßig geometrisch so geformt, dass sie durch Refraktion, also durch Lichtbrechung eine Längsentblendung des an der Vorderseite 30 im Betrieb der Leuchte 1 emittierten Lichts bewirken. Die Querprismen 33 können dabei wie in
Im Unterschied dazu zeigen die
Gemäß den
Bei den Ausführungsformen der
Bei der in
Die Längsprismen 31, die bei den Ausführungsformen der
Im Unterschied dazu zeigt
Bei der in
Obwohl bei der in
Claims (15)
dadurch gekennzeichnet,
dass die Längsprismen (31) geometrisch so geformt sind, dass sie das von den LEDs (11) abgestrahlte Licht mittels Refraktion ausrichten, um eine an der Vorderseite (30) der jeweiligen Lichtoptik (19) emittierte Abstrahlgeometrie (37, 42) zu erzeugen.Luminaire according to claim 1,
characterized,
in that the longitudinal prisms (31) are geometrically shaped in such a way that they refractively align the light emitted by the LEDs (11) in order to produce a radiation geometry (37, 42) emitted at the front side (30) of the respective light optics (19).
dadurch gekennzeichnet,
dass die Lichtoptik (19) im Längsschnitt an ihrer Vorderseite (30) geradlinig ist.Luminaire according to claim 1 or 2,
characterized,
that the light optics (19) in a longitudinal section at its front side (30) is rectilinear.
dadurch gekennzeichnet,
dass die Lichtoptik (19) im Längsschnitt an ihrer Vorderseite (30) mehrere, nebeneinander angeordnete, abstehende Querprismen (33) aufweist.Luminaire according to claim 1 or 2,
characterized,
that the light optics (19) at its front in longitudinal section (30) has a plurality of juxtaposed, has projecting lateral prisms (33).
dadurch gekennzeichnet,
dass die Querprismen (33) durch Bearbeitung des Extrusionsprofils (34) integral am Extrusionsprofil (34) ausgearbeitet sind.Luminaire according to claim 4,
characterized,
that the cross-prism (33) through machining of the extrusion profile (34) are prepared integrally on the extrusion profile (34).
dadurch gekennzeichnet,
dass die Querprismen (33) an einem bezüglich des Extrusionsprofils (34) separaten Anbauteil (35) ausgebildet sind, das am Extrusionsprofil (34) befestigt ist und an seiner vom Extrusionsprofil (34) abgewandten Seite die Vorderseite (30) der Lichtoptik (19) bildet.Luminaire according to claim 4,
characterized,
in that the transverse prisms (33) are formed on a separate attachment (35) with respect to the extrusion profile (34), which is attached to the extrusion profile (34) and on its side remote from the extrusion profile (34), the front side (30) of the light optics (19). forms.
dadurch gekennzeichnet,
dass der Tragkörper (2) für den jeweiligen Haltebereich (12) je eine Vertiefung (20) aufweist, in welche die jeweilige Lichtoptik (19) zum Verschließen der jeweiligen Vertiefung (20) eingesetzt ist.Luminaire according to one of claims 1 to 6,
characterized,
in that the support body (2) for the respective holding region (12) has in each case a depression (20) into which the respective light optic (19) for closing the respective depression (20) is inserted.
dadurch gekennzeichnet,
dass zwischen Längsseiten (23) der jeweiligen Lichtoptik (19) einerseits und Längsseiten (24) der jeweiligen Vertiefung (20) andererseits je eine Längsführung (22) ausgebildet ist, mit deren Hilfe die jeweilige Lichtoptik (19) axial in den Tragkörper (2) eingesteckt ist.Luminaire according to claim 7,
characterized,
that between longitudinal sides (23) of the respective light optics (19) on the one hand and longitudinal sides (24) of the respective recess (20) on the other hand a respective longitudinal guide (22) is formed, with the aid of which the respective light optics (19) axially in the support body (2) is plugged in.
dadurch gekennzeichnet,
dass die jeweilige Lichtoptik (19) durch die jeweilige Längsführung (22) in einer Abstrahlrichtung (44) der LEDs (11) mittels Formschluss am Tragkörper (2) gehalten ist.Luminaire according to claim 8,
characterized,
that the respective light optics (19) by the respective longitudinal guide (22) in an emission direction (44) of the LEDs (11) by means of form-locking on the support body (2) is held.
dadurch gekennzeichnet,
dass die jeweilige Längsführung (22) als Nut-Feder-Führung ausgestaltet ist.Luminaire according to claim 8 or 9,
characterized,
that the respective longitudinal guide (22) is designed as a tongue and groove guide.
dadurch gekennzeichnet,
dass die jeweilige Längsführung (22) eine an der jeweiligen Längsseite (23) der Lichtoptik (19) ausgebildete Längsnut (26) und einen an der jeweiligen Längsseite (24) der Vertiefung (20) ausgebildeten Längssteg (25) aufweist, der in die Längsnut (26) eingreift.Luminaire according to one of claims 8 to 10,
characterized,
in that the respective longitudinal guide (22) has a longitudinal groove (26) formed on the respective longitudinal side (23) of the light optics (19) and a longitudinal web (25) formed on the respective longitudinal side (24) of the depression (20) which projects into the longitudinal groove (26) intervenes.
dadurch gekennzeichnet,
dass die jeweilige Lichtoptik (19) in der zugehörigen Vertiefung (20) versenkt angeordnet ist, derart, dass die Vorderseite (30) der Lichtoptik (19) bündig mit einer ebenen Vorderseite (21) des Tragkörpers (2) abschließt.Luminaire according to one of claims 7 to 11,
characterized,
in that the respective light optic (19) is recessed in the associated recess (20), such that the front side (30) of the light optic (19) terminates flush with a flat front side (21) of the support body (2).
dadurch gekennzeichnet,
dass die Längsprismen (31) zum Erzeugen einer bezüglich einer senkrecht zur geraden Vorderseite (30) verlaufende Mittelachse (38) der Lichtoptik (19) symmetrischen Abstrahlgeometrie (37) geformt sind.Luminaire according to one of claims 1 to 12,
characterized,
in that the longitudinal prisms (31) are shaped to produce a symmetrical emission geometry (37) for producing a central axis (38) of the light optic (19) that is perpendicular to the straight front side (30).
dadurch gekennzeichnet,
dass die Abstrahlgeometrie (37) zwei Winkelbereiche (40), in denen die Lichtemission erfolgt, aufweist, die im Bereich der Mittelachse (38), abgesehen von einer gegebenenfalls vorhandenen zur Lichtoptik (19) proximalen Überlappung (41), getrennt sind, zur Mittelachse (38) symmetrisch sind und jeweils für sich durchgehend sind.Luminaire according to claim 13,
characterized,
that the Abstrahlgeometrie (37) has two angular ranges (40), in which the light emission is in the range of the central axis (38), except for a possibly present lamphouse (19) proximal overlap (41) are separated, to the center axis (38) are symmetrical and each are continuous.
dadurch gekennzeichnet,
dass die Längsprismen (31) zum Erzeugen einer bezüglich einer senkrecht zur geraden Vorderseite (30) verlaufenden Mittelachse (38) der Lichtoptik (19) asymmetrischen Abstrahlgeometrie (42) geformt sind.Luminaire according to one of claims 1 to 12,
characterized,
in that the longitudinal prisms (31) are shaped to produce an asymmetrical emission geometry (42) with respect to a central axis (38) of the light optic (19) that is perpendicular to the straight front side (30).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL14176731T PL2827050T3 (en) | 2013-07-15 | 2014-07-11 | Lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013213768.0A DE102013213768A1 (en) | 2013-07-15 | 2013-07-15 | lamp |
Publications (2)
Publication Number | Publication Date |
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EP2827050A1 true EP2827050A1 (en) | 2015-01-21 |
EP2827050B1 EP2827050B1 (en) | 2016-12-28 |
Family
ID=51205215
Family Applications (1)
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EP14176731.9A Active EP2827050B1 (en) | 2013-07-15 | 2014-07-11 | Lamp |
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EP (1) | EP2827050B1 (en) |
DE (1) | DE102013213768A1 (en) |
PL (1) | PL2827050T3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUB20153331A1 (en) * | 2015-09-01 | 2017-03-01 | Osram Spa | LENS FOR CORRESPONDENT LIGHTING, DEVICE AND CORRESPONDENT DEVICES |
EP3073187B1 (en) * | 2015-03-23 | 2018-06-06 | Novaday International | Elongated lighting emitting diode and shifted diopter |
EP3401588A1 (en) * | 2017-05-12 | 2018-11-14 | Occhio GmbH | Internal or external light with a low glare light emitting surface |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021212614B4 (en) | 2021-11-09 | 2023-11-16 | Ridi Leuchten Gmbh | Optics for a lamp and lamp with optics |
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EP3401588A1 (en) * | 2017-05-12 | 2018-11-14 | Occhio GmbH | Internal or external light with a low glare light emitting surface |
Also Published As
Publication number | Publication date |
---|---|
PL2827050T3 (en) | 2017-05-31 |
DE102013213768A1 (en) | 2015-01-15 |
EP2827050B1 (en) | 2016-12-28 |
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