EP2956710A1 - Luminaire allongé - Google Patents
Luminaire allongéInfo
- Publication number
- EP2956710A1 EP2956710A1 EP14716246.5A EP14716246A EP2956710A1 EP 2956710 A1 EP2956710 A1 EP 2956710A1 EP 14716246 A EP14716246 A EP 14716246A EP 2956710 A1 EP2956710 A1 EP 2956710A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- layer
- light
- luminaire according
- lamp
- 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
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000004922 lacquer Substances 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- 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
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
- F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
-
- 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
- F21V3/10—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional 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 invention relates to an elongated lamp.
- the Applicant sells an elongated luminaire under the name SLOTLIGHT II.
- This luminaire comprises a profile-like, in cross-section in a first approximation U-shaped aluminum channel element and an elongated, translucent plastic cover which is snapped into the channel element and through which a plane, light-emitting Surface of the lamp is formed.
- an end cap is placed in each case. With temperature changes, the longitudinal extent of the channel element made of aluminum on the one hand and the plastic cover on the other hand vary to different degrees. The end caps serve to conceal these different longitudinal changes.
- end caps also cause the appearance of the luminaire when viewed on the light-emitting surface edge is inconsistent.
- the longitudinal edges of the light-emitting surface appear differently than the front edges of the end caps.
- the invention has for its object to provide an elongated lamp that allows a particularly uniform appearance.
- the luminaire is intended to make it possible that, when viewing the light-emitting surface, the edge of this surface appears to be particularly uniform all around.
- a luminaire having an elongated cover with a planar light emission surface extending in a plane, and an elongated support, the cover being mounted on the support.
- the cover has a lateral wall area, which is closed circumferential shape immediately adjoins the light emitting surface. In this case, a light-tight layer is applied to the lateral wall region.
- the edge of the light emission surface has a uniform appearance on all sides; there are no end caps required, because due to the lateral wall portion of the carrier does not have to extend to the light emitting surface. Due to the light-tight layer on the lateral wall area, the edge can be made to appear particularly clear and precise. It can almost cause a "frameless" appearing light delivery surface.
- the cover consists of a plastic, for example of PMMA (polyimethyl methacrylate) and the layer is preferably made of a metal.
- PMMA polyimethyl methacrylate
- a metal layer on the lateral wall portion of the cover can be particularly suitable a light-tight surface on the side
- Form wall area especially if the lateral wall area consists of plastic.
- the layer is formed by a film and / or by a lacquer.
- the layer can be made very thin and thus the edge of the light emitting surface defined particularly sharp, so to speak, like a line.
- the layer may be formed by coextrusion with the cover.
- the layer is designed to be reflective. As a result, a particularly good efficiency can be achieved for the lamp.
- the cover is shaped so that the side wall portion and the light emitting surface enclose an angle of 90 ° on all sides. This makes it possible to achieve that when viewing the luminaire against the normal of the
- the cover is shaped so that a parallelepiped shape is defined by the light emitting surface and the lateral wall portion.
- the light emission surface can be designed in a particularly straight shape in the form of a straight line.
- the lamp is designed such that the carrier is completely covered by the cover when viewing the lamp against the normal of the light emitting surface. This also makes it possible to make the outer appearance of the lamp advantageous particularly high-quality acting.
- the cover is suspended from the carrier, in particular slidably suspended.
- a light source in particular in the form of LEDs (LED: light-emitting diode) is supported on the support, wherein the lamp is designed so that a light emitted from the light source passes through the Lichtabgabefikiee and is discharged into an outer space of the lamp.
- LED light-emitting diode
- the carrier forms a surface region of the lamp, wherein in particular the carrier is designed as a heat sink for the light source of the lamp.
- the cover is formed in the region of the Lichtabgabefiambae with a first layer and a second layer, wherein the first layer diffused and the second layer is made clear.
- the first layer and the second layer are advantageously formed by coextrusion.
- the lamp has a length which is greater than 3 m, in particular greater than 5 m.
- Fig. 3 is another perspective sketch of the end of a
- Fig. 5 is a sketch of a cross section through the lamp
- FIG. 6 is an enlarged detail of the drawing of FIG .. 5
- Fig. 1 shows a perspective sketch of a longitudinal region of a lamp according to the invention.
- the luminaire is overall elongated, so that it extends along a longitudinal axis L.
- the luminaire has an elongate cover 2 which extends along the longitudinal axis L.
- FIG. 5 shows a sketch of a cross section normal to the longitudinal axis.
- the cover 2 has a light emitting surface 21 which is flat and extends in a plane E.
- the cover 2 is preferably formed in one piece. In this way, the light emission surface 21 can be designed quasi "seamlessly", in particular over the entire longitudinal extension of the cover 2.
- the lamp has an elongate carrier 3, which also extends along the longitudinal axis L, wherein the cover 2 is arranged supported on the carrier 3.
- the cover 2 is preferably made of a plastic, such as PMMA.
- the carrier 3 is preferably made of a metal, for example aluminum.
- the lamp can be designed very long, especially several meters long, so for example more than three meters, preferably more than five meters. For example, it has a length of up to eight meters. The longer the lamp is, the more the length changes generally affect
- the cover 2 extends over the entire length of the lamp while the carrier 3 is slightly shorter than the cover 2 is designed.
- FIGS. 2 and 3 two perspective views of an end region of the luminaire are sketched.
- the design is preferably such that, with respect to the longitudinal axis L, the cover 2 overlies the carrier 3 at its two end regions extends beyond. This makes it possible that it does not happen in the case of a temperature-related shortening of the cover 2, that - when viewing the lamp against the normal of the light emitting surface 21, so as indicated in Fig. 5 by an arrow p - the carrier 3 at one of both end areas becomes visible.
- the cover 2 also has a lateral wall region 22, which adjoins the light emission surface 21 in a closed circumferential shape.
- the cover 2 is shaped such that the lateral wall region 22 and the light emission surface 21 enclose an angle of 90 ° on all sides.
- the cover 2 is preferably shaped such that a parallelepiped shape is defined by the light emission surface 21 and the lateral wall region 22.
- the design can for example be such that the cuboid or the
- Cover 2 has a, measured transversely to the longitudinal axis L width b, which is between 50 mm and 200 mm, for example, 100 mm and a, perpendicular to the longitudinal axis L and the direction of the width b standing height h, which is between 30 mm and 150 mm, so for example 50 mm or 60 mm.
- the design is still such that the
- Carrier 3 also with respect to the width b extends less far than the cover 2, so that extends along this width extension, the cover 2 on the support 3 addition.
- the lamp is designed so that the carrier 3 is completely covered by the cover 2 when viewing the lamp normal to or to the light emitting surface 21.
- the carrier 3 is concentrically offset with respect to the cover 2 inwards.
- the lamp is further designed so that in said
- Light emitting surface 21 are visible.
- a light-tight layer 4 is applied on the lateral wall portion 22, a light-tight layer 4 is applied. This is indicated by way of example in Fig. 6, which shows a section "A" enlarged from Fig. 5. It can be achieved by the light-tight layer 4 that the light-emitting surface 21 has a particularly clear or sharp edge preferably designed so that they have a peripheral edge of the
- the layer 4 thus extends annularly closed along the entire lateral wall region 22.
- the design is such that the lateral wall region 22 is completely covered by the layer 4.
- the layer 4 extends advantageously over the entire height h, the entire width b and the entire Length of the cover 2.
- the layer 4 extends over all vertical wall portions of the cover 2.
- a light-tight lamination can be formed by the layer 4.
- the layer 4 may be formed for example by a film, in particular by a metal foil.
- the film can be applied to the lateral wall region 22, for example, by means of a foil embossing.
- the layer 4 may be formed by a lacquer, in particular in the form of a
- the layer 4 may be formed together with the cover 2 by a coextrusion, so that in this way a quasi, a light-tight side web is formed.
- the layer 4 is designed such that it has a particularly low thickness so as to be able to make the edge of the light emitting surface 21 particularly sharp.
- a light source 5 is supported on the carrier 3.
- the light source 5 may in particular be a plurality of LEDs, which is preferably arranged in a matrix-like manner on a circuit board, which in turn is supported on the carrier 3, in particular with good heat conductivity.
- the lamp is designed so that a light emitted from the light source 5 light passes through the light emitting surface 21 and in a
- the light source 5 preferably represents a light source 5 for emitting light of the lamp.
- the layer 4 is designed so that it is reflective, in particular on its inner side, ie on the side facing a center of the cover 2.
- the carrier 3 is preferably designed so that it forms a surface region of the lamp. In particular, it can be designed as a heat sink for the light source 5.
- the cover 2 is preferably suspended on the carrier 3, in particular suspended or guided sliding, as hinted in Fig. 5.
- the cover 2 preferably has an inwardly facing flange region 23 at the upper edge of the lateral wall region 21, which are configured as bearing surfaces of the cover 2 for mounting on the carrier 3 along the regions which extend parallel to the longitudinal axis L. , as hinted at in Fig. 6.
- the flange region 23 only reaches as far as the carrier 3, but does not overlap it. This is apparent from Fig. 4, which shows a longitudinal section through the end portion of the lamp.
- the shape of the cover 2 can accordingly describe a total of an elongated cuboid, wherein one of the four longitudinal sides, here the upwardly facing longitudinal side, has a particular rectangular opening, which is designed for suspension on the support 3.
- At least one further lighting component for example an operating device 6 for operating the light source 5, may also be supported on the carrier 3.
- a suspension element for suspending the luminaire, for example on a ceiling, may also be provided or formed on the support 3.
- a particularly suitable light distribution on the light-emitting surface 21 can be achieved if the cover 2 is formed in the area of the light-emitting surface 21 with a first layer 211 and a second layer 212, the first layer 211 being diffuse and the second layer 212 being clear.
- the diffuse or first layer 211 may form an inner layer with respect to the center of the cover 2 and the clear or second layer 212 an outer layer.
- the first layer 211 and the second layer 212 can be formed by coextrusion for this purpose.
- the lateral wall region 22 or the remaining cover 2 may have the same material properties or optical properties as the first layer 211.
- the two mentioned layers 211, 212 may also be formed separately from one another.
- the luminaire is suitable for installing a ceiling with a surrounding shadow gap.
- the shadow gap can be very narrow, for example, only 13 mm.
- the light-emitting surface 21 can therefore be designed very precisely.
- the luminaire allows, as it were, a frameless appearance of the light emission surface 21.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202013100634.3U DE202013100634U1 (de) | 2013-02-13 | 2013-02-13 | Längliche Leuchte |
PCT/EP2014/052724 WO2014124966A1 (fr) | 2013-02-13 | 2014-02-12 | Luminaire allongé |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2956710A1 true EP2956710A1 (fr) | 2015-12-23 |
EP2956710B1 EP2956710B1 (fr) | 2018-07-18 |
Family
ID=50473259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14716246.5A Active EP2956710B1 (fr) | 2013-02-13 | 2014-02-12 | Luminaire allongé |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2956710B1 (fr) |
DE (1) | DE202013100634U1 (fr) |
WO (1) | WO2014124966A1 (fr) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH426006A (de) * | 1962-03-15 | 1966-12-15 | Gerhardi & Cie | Leuchtenabdeckung aus Kunststoff oder Glas |
US3549879A (en) * | 1967-10-13 | 1970-12-22 | Emerson Electric Co | Lighting fixture |
FR2122501B1 (fr) * | 1971-01-18 | 1976-03-05 | Greco Fabbrica Ital Appa It | |
DE8128057U1 (de) * | 1981-09-25 | 1982-01-28 | Bron Elektronik AG, 4123 Allschwil, Basel | "leuchte" |
DE20112365U1 (de) * | 2001-07-27 | 2002-12-05 | Zumtobel Staff Gmbh | Leuchte mit einem Basisteil und einer wannenförmigen Abdeckung sowie Basisteil für eine Leuchte |
US6878436B2 (en) * | 2002-05-23 | 2005-04-12 | Atofina | Light emitting diode signs and translucent plastic sheets used therein |
AT11163U1 (de) * | 2008-10-09 | 2010-05-15 | Zumtobel Lighting Gmbh | Leuchte |
DE102012200944A1 (de) * | 2012-01-24 | 2013-07-25 | Osram Gmbh | Leuchtvorrichtung mit Lichtmischbox |
-
2013
- 2013-02-13 DE DE202013100634.3U patent/DE202013100634U1/de not_active Expired - Lifetime
-
2014
- 2014-02-12 WO PCT/EP2014/052724 patent/WO2014124966A1/fr active Application Filing
- 2014-02-12 EP EP14716246.5A patent/EP2956710B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
EP2956710B1 (fr) | 2018-07-18 |
DE202013100634U1 (de) | 2014-05-15 |
WO2014124966A1 (fr) | 2014-08-21 |
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