EP3168530A1 - Luminaire avec un certain nombre de del - Google Patents

Luminaire avec un certain nombre de del Download PDF

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Publication number
EP3168530A1
EP3168530A1 EP16198244.2A EP16198244A EP3168530A1 EP 3168530 A1 EP3168530 A1 EP 3168530A1 EP 16198244 A EP16198244 A EP 16198244A EP 3168530 A1 EP3168530 A1 EP 3168530A1
Authority
EP
European Patent Office
Prior art keywords
light
support plate
luminaire
lamp
led
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.)
Withdrawn
Application number
EP16198244.2A
Other languages
German (de)
English (en)
Inventor
Günther Irlbacher
Christoph Petersen
Thomas Emde
Jonathan MEIER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Emdedesign GmbH
Original Assignee
Emdedesign GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Emdedesign GmbH filed Critical Emdedesign GmbH
Publication of EP3168530A1 publication Critical patent/EP3168530A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources
    • 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
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • 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
    • 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
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • F21Y2109/00—Light sources with light-generating elements disposed on transparent or translucent supports or substrates

Definitions

  • the present invention relates to a luminaire comprising at least one light exit plate made of an at least partially transparent material, a number of LED bulbs, contact means for contacting the LED bulbs and means for powering the LED bulbs, the LED bulbs are mounted directly on a light exit plate , which also serves as a support plate of the lamp.
  • LEDs as bulbs displace in recent years in lighting technology increasingly used previously mainly for technical lighting fluorescent lamps, since LEDs have the advantage of low energy consumption in combination with good electronic controllability such as dimming, change in light color, etc.
  • the light intensity of LEDs is now sufficient great to use for general lighting purposes.
  • LED lights usually use LED modules as lighting LED modules. These are boards on which a larger number of LEDs are usually arranged in rows. These LED modules are then fastened, for example in a wall area in a lamp housing, as shown in the EP 2 650 604 A2 is described.
  • the housing of such a conventional LED lamp is comparatively large volume and this results in a large height of the lamp.
  • built-in reflectors are also used for the light control in the housing and the light exit opening of the housing is additionally covered by a cover (light exit plate) through which the light is emitted.
  • heat dissipation pads are required for the derivation of the heat generated by the LED bulbs in this known lamp, which deliver the heat to the metallic housing body.
  • Transparent laminated glass panes are known for large-area applications where LEDs are used as light sources on a first transparent glass pane can be set, wherein the LEDs can be contacted via transparent interconnects or structured electrical conductive layers on the first glass plate.
  • a second transparent glass plate is then provided, wherein the two glass plates are connected to one another via a peripheral frame element to form a laminated glass pane.
  • these composite glass panes are concerned with large-scale applications in building glass fronts, building roof elements, ceiling coverings, which are designed to be illuminated, and not individual discrete luminaires.
  • the object of the present invention is to provide a lamp using LED bulbs with the features of the type mentioned, which has a simple structural design, requires a reduced proportion of components and therefore is inexpensive to produce, which has a comparatively flat Structure has and has improved lighting properties, in particular a largely uniform light output over the luminous surface has.
  • lighting means which at least partially reflect a portion of the light emitted from the light exit plate and carrier plate, wherein a reflected portion of light is reflected back onto the carrier plate and passes through the carrier plate counter to the original direction of emission.
  • the lighting means comprise a spaced apart from the support plate scattering disc / reflector disc, which is transparent to a first portion of light and reflects a second portion of light in the direction of the support plate, which passes against the original emission direction through the support plate.
  • the aforementioned diffuser / reflector disc forms a quasi first light exit plate to one side of the lamp towards and the carrier plate acts as a second light exit plate to the other side of the lamp out.
  • the lighting means comprise a distance from the luminaire with respect to the luminaire external reflection surface, in particular a surface on a room ceiling or room wall, wherein a light reflected from this reflection surface light component is reflected on the support plate and against the original emission direction passes through the carrier plate.
  • the LEDs thus sit on the support plate so that its back, on which the contacts are located, is fastened on the support plate and is contacted there, for example, via conductor tracks.
  • the light is emitted by the LEDs on the front side, which faces away from the mounting surface of the carrier plate. The light is therefore not emitted directly in the direction of the support plate, but away from it.
  • the support plate itself is a light exit plate, because the light is then at least partially thrown back onto the support plate and then passes through it, so there is a light deflection before the passage of light through the support plate.
  • the luminaire may comprise a light-permeable, in particular largely transparent, cover glass arranged at a distance from the carrier plate.
  • the support plate can have a shadow area with reduced or no light emission where there are on this illuminant.
  • a circumferential in the edge region of the spacer ring is arranged.
  • an approximately tubular fastener may be arranged, through which a cable passes.
  • LED bulbs are mounted in known lights on separate boards (LED modules), they are mounted directly to the support plate in the luminaire according to the invention.
  • the boards are eliminated. Since the carrier plate at least partially is transparent (translucent or possibly also transparent in some areas) can sit directly on the support plate LED bulbs emit their light through the support plate through.
  • the light is not easily passed through the pane of glass, which is opposite to the one on which sit the LEDs, but the light is at least partially discharged through the one plate, on which the LEDs are sitting, ie
  • This support plate is also light exit plate at the same time.
  • the light is homogenized by scattering / reflection and thus achieves a surface light emission instead of a punctual light emission.
  • a housing is no longer required for a lamp according to the invention.
  • the support plate also assumes static functions, because it serves as a carrier for the lamps and optionally other components, especially for the operation of the lamp necessary electronic components.
  • Superfluous cavities in a housing which increase the space of a lamp, thus eliminating.
  • Another advantage results from the fact that the heat generated by the LED bulbs is absorbed and dissipated by the carrier plate.
  • luminaires of the type according to the invention have, unlike the prior art, a number of individual LED illuminants which are each directly attached, in particular soldered, to a translucent or transparent support plate made of glass or plastic.
  • the contacting of the LEDs in order to supply them with current can be effected, in particular, by printed circuit traces printed on the side facing away from the carrier plate, preferably on the side emitting the light-emitting side (rear side).
  • the support plate itself is preferably processed (eg coated, matted, printed or textured on the surface or inside) that ensures effective light extraction of the light emitted by the LEDs and a uniform light distribution of the emitted light on the light-emitting surface of the support plate That is, the individual LED bulbs are no longer perceived by the viewer as punctual light sources.
  • the support plate in a lamp according to the invention quasi perform three functions at the same time, are used for conventional luminaires in each case separate components, namely on the one hand the function as a support plate (replaces quasi the board) for the bulbs that directly on this be applied without using boards with LEDs:
  • the support plate serves as a supporting component of the lamp and takes over functions for the otherwise Housing is used, for example, attachment of the mounting hardware for mounting or mounting the lamp (feet or bracket for floor and table lamps, bracket or mounting device for wall and ceiling mounted lights, suspension or bracket for suspended ceiling lights).
  • the support plate serves as a light exit plate of the lamp, that is, an additional upstream light exit plate, which is commonly stored in a housing in conventional lights, is no longer necessary.
  • the support plate replaces not only the boards for the LED bulbs, but it can also serve as a carrier and board for other electronic components, in principle for all electronic components used for the circuit / control / regulation of the lamps and other lighting functions of the Lamp are necessary. These electronic components can therefore be placed directly on the printed circuit board, fixed there and contacted via printed on the carrier plate, preferably printed circuit traces.
  • printed conductors have the advantage that they allow a rational production, because in one or more printing operations all necessary for the interconnection of the LEDs and the electronic components traces can be applied. Such printing processes allow a strong automation.
  • the usual assembly of populated with LEDs or electronic components boards in a housing of the lamp omitted.
  • Such electronic components may, for example, be those which have a regulating function with regard to the power supply or voltage supply to the LED lamps or the change in the brightness (dimming function) or the color reproduction of the LED lamps.
  • a particularly advantageous embodiment of the invention provides that at a central point of the carrier plate, the current is fed into the lamp and run from there tracks to the LED bulbs and / or provided for their operation electronic components.
  • At least the surface of the translucent carrier plate facing the LED illuminants consists of glass or plastic glass, in particular acrylic glass.
  • the carrier plate and the light exit plate as a whole consist of these materials, which, incidentally, can also be printed well.
  • the support plate on its light-emitting side and / or on its back at least in some areas matted, in particular by etching, sandblasting, grinding, lasers, printing or the like.
  • the light is then no longer amplified radiated in the areas corresponding to the luminous points of the LED bulbs and the discrete LED bulbs are perceived by the viewer no more or less pronounced.
  • virtually the entire surface of the carrier plate at its light-emitting side can be light-emitting. It is advantageous that according to a preferred variant of the invention, this matting can be done in one or more printing processes, which further streamlines the manufacturing process of the light exit plate / carrier plate.
  • the carrier plate For the purpose of changing the light emission characteristic of the carrier plate, it is possible, for example, to provide for units of at least two LED illuminants which emit light having a different color spectrum and can be controlled separately, being arranged on the carrier plate. This allows, for example, the optional delivery of light in different shades of white such as "warm white”, “cold white” by alternately switching on one or the other LED or by their simultaneous switching to the generation of mixed colors.
  • the support plate can also be coated or printed only in some areas in order to change the Lichtabstrahl characterizing or light color, or to achieve, for example, a stronger light output or an altered light output only in selective areas.
  • a coating may be only partially transparent (translucent) and their application may be by printing, for example by screen printing or digital printing or other suitable printing processes.
  • a coating can be carried out by means of one of the common methods known in the art for applying thin layers, for example by vacuum coating, evaporation (PVD), sputtering, plasma coating, gas phase deposition (CVD), sol-gel deposition, spin coating, Roller application, spraying, exchange coating etc.
  • PVD evaporation
  • CVD gas phase deposition
  • sol-gel deposition spin coating
  • Roller application spraying
  • spraying exchange coating etc.
  • multiple printing or coating can be achieved that in the off state of the area or the areas in which electronic components or fasteners are on the side facing away from the light-emitting side of the support plate, on the light output side in their color and / or in their appearance differ only slightly from the remaining area of the support plate and thus one obtains a largely homogeneous appearing surface even in the off state of the light source, which ensures a pleasing visual appearance of the lamp according to the invention.
  • the translucent support plate on which the LED illuminants are mounted for example, part of a pendant lamp.
  • the power supply can be done in such a pendant lamp, for example via the suspension of the lamp, which is mechanically connected at its lower end with the support plate. From there it is possible, for example, to produce an electrically conductive connection with a printed conductor track of the carrier plate via a cable coming from an external power source. Starting from this main conductor track, the current flow can then take place via branching conductor tracks to the individual LED lamps and the electronic components.
  • a translucent and light-emitting support plate is equipped with a number of LED bulbs according to the principle of the invention are, for example, a pendant, ceiling mounted luminaire, recessed ceiling luminaire, wall mounted luminaire, recessed wall luminaire, floor lamp or table lamp.
  • the LED illuminants are thus preferably arranged on the upper side of the at least partially translucent carrier plate in the case of a pendant luminaire.
  • luminaires according to the invention can be, for example, recessed floor luminaires, mirror luminaires, furniture luminaires or illuminable furniture elements, mobile luminaires, outdoor luminaires, street lamps, orientation luminaires, signage luminaires, or luminaires for emergency lighting.
  • the support plate may have an approximately circular outline and the LED bulbs may be arranged on the support plate in at least two mutually concentric spaced round all running annular tracks, so as a uniform illumination of the support plate, especially when using relatively to reach smaller LEDs.
  • SMD LEDs can be used here.
  • the support plate and light exit plate are rectangular in outline or triangular or polygonal, resulting in other meaningful arrangements of LED bulbs result, for example in rows parallel to the outer edge of the support plate or even grid-shaped in rows and columns as evenly as possible over the surface of the support plate to illuminate them evenly.
  • a larger number of LEDs is usually used, depending on the luminous flux emitted by the individual LED, the size of the carrier plate and the desired illuminance of the luminaire. This can be, for example, numbers of 50 or 100 or more LEDs on a carrier plate.
  • FIG. 1 Reference is made and based on this, the basic design of an exemplary inventive lamp 10 is explained with LEDs.
  • the support plate 11 and light exit plate of the lamp has a total of a round outline. At least in the region in which the light is emitted downwards, this support plate 11 is made of a transparent or translucent material, in particular of glass or acrylic glass.
  • On this support plate 11 a plurality of LED bulbs 12, 13 are applied. For simplicity and clarity, in FIG. 1 only some of the LED bulbs 12, 13 are shown by way of example. In the light according to FIG. 1 the LED bulbs 12, 13 are each arranged on concentric rings which extend around the center of the circular support plate 11 in the outline.
  • each of these concentric nested rings 16 radially outermost
  • 17 radially further inside
  • 18 radially even further inside
  • 19 in the vicinity of the center of the support plate 11
  • LEDs 12th 13
  • each with spaced apart LED bulbs available so that this total, for example, more than 50 or 100 LEDs can be, if as in small SMD LEDs are used in the present embodiment.
  • These LEDs 12, 13 are mounted directly on the surface of the support plate 11 and where there are printed on the support plate traces 23, so that via these traces 23, the contacts of the LEDs are contacted.
  • Other tracks 20 can, for example lead from the center of the support plate 11 radially outward, with 20 additional electronic components 21 may be located on these tracks.
  • tracks 23 can be better in the enlarged detail view according to FIG. 2 recognize that a section of the plan view of the support plate 11 according to FIG. 1 in an edge region of the carrier plate 11 shows.
  • a section of the plan view of the support plate 11 according to FIG. 1 in an edge region of the carrier plate 11 shows.
  • a plurality of annular printed conductors 23 extending concentrically therewith, via which the power supply of two times two exemplary LED lamps 12, 13 takes place, which are located directly on the carrier plate 11, where corresponding printed conductors 23 are printed.
  • Also mounted on the support plate 11 are electronic components 22, which are needed for the operation of the LED bulbs 12, 13 and various functions of the lamp 10 and which also lead corresponding tracks 23, which supply the electronic components with power.
  • the tracks 23 for the LEDs may be slightly wider than in FIG FIG. 2 can be seen so as to obtain a larger cross-section and thus to reduce the electrical resistance.
  • the LED bulbs 12, 13 are arranged in pairs in the present embodiment, wherein the LED bulbs 12, 13 respectively produce different light colors, such as warm white and cold white. This creates the possibility, by appropriate control of the LEDs 12, 13, for example via connected with these electronic components 22, the LEDs either turn on or turn on simultaneously to produce mixed colors of the emitted light.
  • FIG. 4 schematically shows a section of the support plate 11 of the lamp, for example in an edge region of the support plate, as in FIG. 2 is shown and can be seen here exemplary LED bulbs 12, 13 which sit on the support plate 11 similar to a circuit board and thereby contact their associated conductor tracks 23, which applied to the upper surface of the support plate (facing away from the light-emitting side), in particular are printed. It can be seen here well that due to the strong reduction of the necessary components of the lamp, due to the multiple function of the support plate 11, the lamp can be built very flat overall. On the top side, if necessary, the support plate can still be covered by a cover plate which has the function of protecting the LED lamps 12, 13 and electronic components 22, this cover plate however not being illustrated in the drawings.
  • a fastener 14 is located, which Part of the bracket of the lamp is, for example, part of the suspension when using the lamp as a pendant lamp.
  • This fastener 14 may have a radial recess through which one can lead a cable 15, which then leads to a first central conductor 23, from which via further branching tracks 23, the LED bulbs 12, 13 and the electronic components 22nd be supplied electrically.
  • the input-side end of the cable 15 can first lead to the middle of the fastener 14 from there approximately at right angles to the plane of the support plate 11 by the suspension of the lamp 10 upwards, if it is a pendant light, so that the suspension at the same time the cable guide uses the connection cable of the luminaire.
  • the fastening element 14 may for example be substantially annular cylindrical or approximately tubular with the aforementioned radial recess for the exit of the cable 15.
  • the fastening element 14 may have a flange which is seated on the support plate 11 and connected thereto, so that on this Way the support plate 11 can be held at a pendant lamp on the central fastener 14 and a suspension connected thereto.
  • FIG. 3 can also be seen the innermost concentric ring 19, which is equipped with each paired LED bulbs 12, 13, in a similar manner as before for the radially outer ring 16 with reference to the FIG. 2 has been described.
  • LED bulbs 12, 13 and electronic components 22 with various functions on the other two rings 17 and 18 (see FIG. 1 ), where they are each electrically contacted by tracks 23, which, for example, from the center and the cable 15 (see FIG. 3 out.)
  • the support plate 11 is matted by suitable measures, for example by printing or coating, in order to achieve a uniform distribution of the light emitted by the selectively arranged LED bulbs 12, 13 over the entire (in the case of the embodiment, underside) surface of the support plate 11.
  • the support plate 11 is in the lamp according to the invention for a circuit board and support for the LED bulbs 12, 13 and electronic components 22 and at the same time light exit plate of the lamp 10th
  • the carrier plate 11 of the luminaire 10 can be given a single or multiple printing, for example, in partial areas in which electronic components or illuminants are located on the top side (rear side) of the carrier plate.
  • the rear side (upper side) of the carrier plate 11 is first provided with a first printing in defined surface areas.
  • This print is very thin, can for Example be applied by screen printing and consists for example of ceramic pigments that are electrically insulating. These pigments may have a light color, for example, they are white. In this way you can make these partial surfaces of the support plate in the off state opaque. Accordingly, you can also print the areas in which the fastener 14 is for the suspension of the lamp 10 so that it is no longer recognizable from the bottom of the support plate 11, where the light is emitted.
  • a printing alone with light pigments may not be sufficient to ensure the desired opacity sufficiently. Therefore, it is advantageous in such a case, if then still a second printing takes place, in which the same portions of the surface of the carrier plate can be printed as in the first printing.
  • this second printing may be repeated with a light, e.g. white ceramic pigment and is preferably also very thin, for example, in the micron range or even thinner or printed on the second printing with a dark, such as black pigment.
  • FIG. 5 shows a perspective view of a lamp according to another exemplary variant of the present invention in an exploded view, which in this example is a floor lamp 10 a.
  • the support plate 11 as described in the previous examples, is located in this luminaire variant above, the LEDs 12 are mounted on the support plate so that they radiate their light first downwards, that is, away from the support plate 11.
  • the contact side (in this case, the back side) of the LEDs is located on the surface of the carrier plate, since so the LEDs are contacted, whereas the light-emitting side of the LEDs emits their light from the support plate 11 away.
  • a second disc serves as a diffuser or reflector disc 25, which is spaced from the support plate via a spacer ring 24.
  • Support plate 11, diffuser 25 and spacer ring 24 here each have a round outline shape and an approximately equal diameter.
  • In the central area is an example approximately tubular fastening element 14, through which the cable 15 can be passed for the electrical supply of the lamp.
  • a standpipe 26 is present, which carries the arrangement with support plate 11 and lens 25 and extends approximately centrally in the axial direction.
  • the attachment of the plate assembly further comprises a lock ring 27.
  • the standpipe may extend below the lens 25 approximately in alignment and in axial extension to the tubular fastener 14.
  • the standpipe 26 thus carries the lamp head with the two plates 25, 11 and the spacer ring 24.
  • the light can be at the in FIG. 5 illustrated floor lamp variant are radiated as shown in the schematic view FIG. 6 is shown, to which reference is made below.
  • the direct light 32 is primarily radiated from the LEDs 12 on the support plate in the direction of the diffuser / reflector plate 25 (in this floor lamp so down) and is now partially reflected by the reflector plate 25 from the top in the direction of the support plate 11 , so that a first light portion 29 then passes through the at least partially translucent support plate and is emitted as scattered reflected light 30 upwards, for example, to the ceiling.
  • a second light portion 31 passes through the also partially translucent (in particular translucent) lens 25 and is optionally scattered. In this way, how to get in FIG.
  • the 6 detects a direct / indirect radiating light with two light components 30, 31, of which the one passing through the lens / reflector disk 25 is discharged substantially uniformly over the surface of the disk 25, the LEDs are not or hardly perceived as punctiform light sources.
  • the first light component 30 can serve as an indirect light component for lightening the ceiling.
  • FIG. 7 another variant of a lamp according to the invention explained, in which the light emission is different than in the previously described variant according to FIG. 6 .
  • the support plate 11 down and the LEDs 12 emit their light 32 thus initially upwards towards the located above and at a distance from the support plate 11 diffuser / reflector disk 25th
  • a first proportion of light as scattered direct light 31 through the disc 25 so as to be radiated upward
  • a second light portion 29 is reflected on the disc 25 in the direction of the support plate 11 and then passes therethrough and emerges downwards as scattered reflected light.
  • a shadow area 28 are located to shade the LED located there against direct radiation downwards.
  • FIG. 8 describes a further alternative variant of the light emission in a luminaire according to the invention.
  • the LEDs 12 are also located here on the support plate 11, but give their light 32 from above, since the support plate 11 is here reversed aligned as in the variant of FIG. 6 , so that the LEDs are pointing upwards.
  • a cover glass 33 is present, which is primarily the protection of the LEDs 12 and the electronic components of the lamp is used.
  • the upwardly emitted light portion 32 is partially reflected on the ceiling 34 and directed downward on the support plate 11, which acts as a light exit plate, so that scattered reflected light 30 through the support plate 11 passes down through. Again, a shadow area 28 may be provided below the LED 12.
  • the cover glass 33 is preferably substantially transparent in order to avoid light losses.
  • the support plate 11 is preferably designed to be light-scattering in order to ensure a more uniform emission of light towards the bottom.
  • FIG. 9 a further alternative variant of the light emission in a luminaire according to the invention, which is mounted in front of a wall described.
  • the LEDs 12 are also located here on the support plate 11, but give their light 32 to the side of the room wall 35 down from, since the support plate 11 is vertically aligned here, so that the LEDs on one side (right in the drawing) Support plate 11 are located.
  • a cover glass 33 is present, which serves primarily to protect the LEDs 12 and the electronic components of the lamp.
  • the light component 32 emitted to the side is partially reflected on the room wall 35 and thrown back onto the carrier plate 11, which acts as a light exit plate, so that reflected light 29 exits through the carrier plate 11 as scattered light 30 to the other side. Again, a shadow area 28 may be provided under the LED 12.
  • the cover glass 33 is preferably substantially transparent in order to avoid light losses.
  • the support plate 11 is preferably designed to be light-scattering in order to ensure a more uniform light emission to the side.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP16198244.2A 2015-11-12 2016-11-10 Luminaire avec un certain nombre de del Withdrawn EP3168530A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015119508.9A DE102015119508A1 (de) 2015-11-12 2015-11-12 Leuchte umfassend eine Anzahl LED-Leuchtmittel

Publications (1)

Publication Number Publication Date
EP3168530A1 true EP3168530A1 (fr) 2017-05-17

Family

ID=57286332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16198244.2A Withdrawn EP3168530A1 (fr) 2015-11-12 2016-11-10 Luminaire avec un certain nombre de del

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Country Link
EP (1) EP3168530A1 (fr)
DE (1) DE102015119508A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109780485A (zh) * 2019-03-28 2019-05-21 苏州欧普照明有限公司 灯具
NL1042881B1 (en) * 2018-05-25 2019-12-02 Stogger Bv Lighting device.

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Publication number Priority date Publication date Assignee Title
EP0354468A2 (fr) * 1988-08-10 1990-02-14 TELEFUNKEN electronic GmbH Radiateur lumineux plan
DE10105622A1 (de) * 2001-02-08 2002-08-14 Insta Elektro Gmbh Beleuchtungseinrichtung
WO2006018066A1 (fr) 2004-08-17 2006-02-23 Schott Ag Element comportant une pluralite de diodes electroluminescentes
WO2008102287A1 (fr) * 2007-02-23 2008-08-28 Koninklijke Philips Electronics N.V. Luminaire à del
DE102012205188A1 (de) * 2012-03-30 2013-10-02 Tridonic Gmbh & Co. Kg LED-Leuchte
EP2650604A2 (fr) 2012-04-13 2013-10-16 Trilux GmbH & Co. KG Lampe dotée d'un élément de support pour un module à DEL

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