EP2020563B1 - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
EP2020563B1
EP2020563B1 EP07015209.5A EP07015209A EP2020563B1 EP 2020563 B1 EP2020563 B1 EP 2020563B1 EP 07015209 A EP07015209 A EP 07015209A EP 2020563 B1 EP2020563 B1 EP 2020563B1
Authority
EP
European Patent Office
Prior art keywords
luminaire
accordance
light
housing
region
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.)
Not-in-force
Application number
EP07015209.5A
Other languages
German (de)
French (fr)
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EP2020563A1 (en
Inventor
Hartmut S. Engel
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP07015209.5A priority Critical patent/EP2020563B1/en
Priority to CA002638382A priority patent/CA2638382A1/en
Priority to MX2008009848A priority patent/MX2008009848A/en
Priority to US12/184,454 priority patent/US20090034253A1/en
Publication of EP2020563A1 publication Critical patent/EP2020563A1/en
Application granted granted Critical
Publication of EP2020563B1 publication Critical patent/EP2020563B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/02Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/02Globes; Bowls; Cover glasses characterised by the shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/002Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/005Refractors for light sources using microoptical elements for redirecting or diffusing light using microprisms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening 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
    • F21V17/20Fastening 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 by toggle-action levers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33Elongate light sources, e.g. fluorescent tubes curved annular
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37U-shaped
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Definitions

  • the invention relates to a luminaire, comprising a cup-shaped, a bottom surface having housing, are mounted on the light source and associated electrical components and in which a luminous body engages positively and is releasably secured to the housing.
  • Luminaires of this type are known and are used both indoors and outdoors.
  • a lamp preferably provided with a screw in the form of a lamp known, which has a halogen lamp as the light source, which is arranged behind a simultaneously serving as explosion protection lens in the housing portion of the lamp.
  • the lens is held in a ring member, which also serves for fixing a preferably consisting of glass filament whose inner wall is provided with a reflective coating.
  • the light generated by the halogen lamp is directed directly and also via a reflector located at the back to the halogen lamp against the reflective inner coating of the filament and also to the translucent end wall of the filament, so that the entire light generated by the halogen lamp at the front of the filament and not in the side Area exits.
  • the lower edge of the mirror reflector has a light scattering body.
  • the light scattering body which is a prism or a reflection surface, is disposed immediately adjacent to the ceiling structure within which the mirror reflector is located, at the base of which the lighting means, in particular a lamp or light bulb, is positioned.
  • a light-transmitting lens for use with a photoelectric sensor wherein in a substantially hemispherical, in particular made of black plastic housing, a specially designed lens is provided, which makes it possible to redirect the light emitted from an LED arranged in the housing bottom side so that From the front of the housing emerges a bundle of parallel light rays and accordingly the entire light generated by the LED can be used.
  • WO 01/59365 A From the WO 01/59365 A is a lamp with a lamp and at least one - viewed in the emission direction - behind or behind the lamp arranged concave reflector known, being arranged laterally of the lamp color filter of the kind that only that of the lamp laterally against the at least one concave Reflector emitted light is changed by the color filter in its color composition, while the radiated by the lamp in the emission direction light is not changed by the color filter.
  • a rod-shaped gas discharge lamp which is arranged centrally between the side color filters and before the Kunststoffabstrahlutter a Lichtverteil element in the form of consisting of side reflectors and cross louvres grid is arranged on the majority of the light emitted by the lamp after is radiated down.
  • a grid and a perforated plate or other optical element in the form of a diffuser or a Prism structure can be used.
  • the area surrounding the lamp appears in a different color, so that different effects and moods can be generated by choosing a suitable filter.
  • Object of the present invention is to make lights of the type mentioned while creating a distinctive aesthetic appearance constructively simple, universally applicable and in lighting terms such that on the one hand large-area glare-free direct light and on the other hand at least one radial indirect light component is obtained.
  • the luminous element Due to the special shape of the luminous element and the targeted positioning of the bulbs, it is possible to uniformly apply direct light to the essentially flat front surface and to configure the luminance differences between the front surface and the inclined surface in such a way that between the inclined surface and the housing an indirect light-emitting radial light region is produced which, due to the lower luminance, has an inclined surface emphasized and differentiated from the direct light-supplying front surface.
  • the radial light section is obtained by virtue of the fact that the base region of the luminous element has a fixing section engaging in the cup-shaped housing and a transparent, direct-light-applied section located between the fastening section and the oblique surface.
  • the receiving area for the luminous means or the luminous means is located below the cross-sectional plane of the luminous element corresponding to the beginning of the oblique surface and preferably below the translucent section preceding the beginning of the oblique surface, since this is an important Condition for the characteristic loading of the different areas of the filament with direct light or grazing light is.
  • the axial height of the radial light portion is smaller than the axial height of extending to the front surface inclined surface portion, wherein the axial height of the radial light portion is in preferred embodiments about 30% to 60% of the height of the inclined surface portion.
  • the inclined surface with the bottom surface of the housing preferably includes an angle of less than 50 °, and this angle is in advantageous embodiments in the range of about 25 ° to 45 °.
  • the transition between the attachment portion and the translucent, the radial light-supplying portion is designed in the form of a connected with a diameter increase, in particular rectangular step.
  • the luminous body and the housing engage flush with each other, so that the radial light section is optically clearly delimited, on the one hand by the housing and on the other hand by the inclined surface located only in the grazing light region.
  • a disc-shaped element in particular an annular disc is positioned in particular in a circular lamp in the region of the radial light portion and with respect to the inclined surface with predeterminable axial distance, which extends at least substantially parallel to the front surface and whose diameter is greater than the diameter of the front surface ,
  • annular disc Since this annular disc is located in the radial light range, a recessed with respect to the front surface luminous surface is created at a distance from the fully illuminated front surface, both aesthetically to a particularly characteristic appearance of the lamp leads as well as in terms of lighting technology, a desirable additional benefits, which is especially evident when the radially inner portion of the annular disc is formed as at least partially open, translucent area and thus the back of the disc location mounting surface for the lamp can be illuminated.
  • the annular disc is preferably connectable via coupling elements with the housing, so that they can be attached at any time to the basic version of the lamp if necessary.
  • the annular disc it is possible to form the annular disc as a top wall of an annular space at least partially surrounding the housing, wherein the annular space thus formed for receiving functional components, such. a ballast or a motion detector can be used.
  • a particularly preferred embodiment of the invention is characterized by an embodiment in the form of a ceiling or flush wall recessed luminaire with a reflector pot which surrounds the filament on all sides with a radial distance and the opening plane extends at least substantially corresponding to the plane of the front surface of the filament.
  • the reflector pot either on a predeterminable angle or approximately parallel to the inclined surface of the filament extending bottom surface, which merges in the height range of the inclined surface in a vertical wall section, or he has a located in the housing bottom, radially outwardly extending and within the vertical Projection of the front surface ending base surface, which is followed by a sloping wall region, which in turn merges into a vertical wall section.
  • the oblique wall region of the reflector pot can be a function of the desired visible luminance distribution steeper or less steep than the oblique surface of the filament are selected.
  • the radial light portion is deflected through the reflector pot in such a way that the light emitting surface of the filament increases by characteristic diffused diffused light and by the different luminances in the field of the filament and in the reflector cup increased aesthetic differentiation for use as General lighting without special Entblendungsing is obtained.
  • a particularly advantageous in terms of achievable light output embodiment of the invention which can be used both in the case of round lights as well as in the case of rectangular lights, is characterized in that the filament is not integrally formed, but consists of several, in particular glued or welded together parts in which at least the front surface comprises a layer structure with a microprism disk whose outer prisms are covered by a preferably crystal-clear outer surface and on whose inner side a diffuser film is preferably provided.
  • This layer structure forming the front surface expediently becomes directly or via a frame enclosing the layer structure positively connected to a matched end portion of the filament, and both parts are welded together in particular.
  • the adjoining the front surface, preferably formed by the end portion of the filament region of the filament is formed as a circumferential luminous surface.
  • the use of the layer structure mentioned leads in comparison to an embodiment in opal glass or a corresponding plastic material to a substantial, for example, up to 50% increase in the light output.
  • Both in the case of a round and a rectangular configuration of the lamp can be used as a light bulbs in particular ring or rod-shaped fluorescent lamps or compact fluorescent lamps with a plurality of light rods.
  • the LED lighting technology can be used in an energy-efficient manner by attaching a plurality of LEDs to at least one preferably reflective support surface and positioning the support surface in the housing-side region of the radial light section of the luminous element.
  • the particular desired light color can be ensured by using commercially available LED's, with appropriate equipment also RGB illumination is possible.
  • the luminous element with the housing via a plurality of mounted on the housing toggle lever buckles can be coupled.
  • These toggle clamps not only allow a simple and when using a seal between the light and body and absolutely tight connection between the two bodies, but they also have the advantage that they are easily operable when the lamp from a reflector pot is surrounded, because these latches are accessible for operation via the gap between the luminous element and reflector pot.
  • the plurality of luminous means are mutually spaced apart in a plane parallel to the front surface of the luminous element arranged LEDs is provided, each LED is associated with a special intent optics, which causes both an axial bundling and a lateral emission of light, the LED's with associated attachment optics are preferably positioned in the base region or at least partially in the base region of the filament.
  • the number and distribution of the LED's with associated attachment optics is chosen so that the obtained by the intent optics axially directed light beam illuminate the entire surface of the front surface, i. essentially adjacent to one another or overlapping on the front surface in their edge regions.
  • the direct light emerging laterally out of the respective optical attachment at least predominantly strikes the radial light section of the luminaire, so that, in accordance with the basic principle of the invention, the radial light section and the front surface are in turn subjected to direct light.
  • Fig. 1 shows the basic structure of a luminaire according to the invention, which comprises an existing particular satin-finished opal glass or a corresponding plastic luminous body 2 and an associated cup-shaped housing 1.
  • the luminous element 2 is formed by a base part designated by the general reference numeral 3 and an outer region 4, wherein the Exterior 4 consists of an inclined surface region 5 and a front surface 6.
  • the transition between the inclined surface region 5 and substantially flat or only slightly outwardly curved front surface 6 takes place in the illustrated example over a curved region, wherein the front surface 6 and inclined surface 5 at an acute angle to each other.
  • transition between the inclined surface region 5 and front surface 6 may be provided as a transition region between an inclined surface region 5 and front surface 6 cylindrical region of predetermined height, which is acted in contrast to the inclined surface region 5 not with grazing light, but especially with direct light from the bulbs.
  • a radial light section 9 which merges via a transition stage 10 into a fastening section 8, which engages into the housing 1 and can be fixed to the housing 1, follows on the inclined surface region 5 of the luminous element 2.
  • the one or more bulbs 7 are designed and / or positioned so that both the base region 3 and the radial light portion 9 and the front surface 6 are substantially fully exposed to direct light and the inclined surface 5 of the filament 2 is located substantially only in the grazing light range.
  • a fluorescent lamp FC is used as the luminous means 7, but depending on the dimensioning of the luminaire, two or more fluorescent lamps and also planar LED arrangements can be used instead of one fluorescent lamp, preferably in the same plane are located.
  • the transition stage 10 between radial light section 9 and attachment section 10 of the existing opal glass or a suitable plastic material filament is selected and dimensioned so that the housing 1 is flush with the radial light portion 9, whereby a defined optical boundary of the radial light portion 9 and a positive integration of the housing 1 in the overall structure of the lamp is obtained.
  • the radial light section 9 which is directly exposed to light, provides a defined proportion of indirect light on the room side, which, depending on the installation situation, appears in addition to the direct light supplied by the front surface.
  • the axial height of the radial light section 9 is preferably smaller than the axial height of the inclined surface section extending up to the front surface 6, and in particular is approximately 30 to 80% of the height of the inclined surface section.
  • the inclined surface 5 includes an angle smaller than 50 °, and this angle is preferably in particular in the range of 25 ° to 45 °.
  • FIG. 2 shows the embodiment according to Fig. 1 supplemented by an annular disc 11 coupled to the housing 1, which is positioned at the level of the transitional stage 10 and has a diameter which is significantly greater than the outer diameter of the front surface 6.
  • the annular disc 11 is a more or less high, but in comparison to the front surface 6 always lower luminance, so that the overall flat character of the light even more emphasized and it is possible by creating a kind of backlight the front surface 6 to make even more apparent. This is for example advantageous if the front surface has a special marking, such as a house number representation.
  • Fig. 3 shows a development of the light after Fig. 2
  • the annular disc 11 is formed as a top wall of the housing 1 at least partially enclosing annular space 13.
  • the elements required to create the annular space are preferably plastic mold elements which are connected in a simple manner to corresponding coupling walls of the annular disk 11 can.
  • the annular space created in this way is preferably used to hold functional elements, such as a ballast or a motion detector.
  • a ballast 34 may also be attached to the bottom of the housing 1.
  • Fig. 4 shows a particularly advantageous embodiment of the invention in the form of a ceiling or flush wall recessed luminaire with a reflector pot 14 which surrounds the filament 2 on all sides with a radial distance and whose opening plane 15 extends at least substantially corresponding to the plane of the front surface 6 of the filament 2.
  • the reflector pot 14 has an approximately parallel to the oblique surface 5 of the filament 2 extending or steeper bottom surface 16, which merges in the height range of the inclined surface 5 in a vertical wall portion 33. Both the bottom surface 16 and the vertical wall portion 33 are uniformly exposed to light via scattering and reflection effects, so that within the reflector pot 14 no shading effects occur.
  • the reflector pot 14 has a located in the region of the housing bottom, outwardly extending and radially within the vertical projection of the front surface 6 ending base surface 22, to which a slanted wall portion 23 connects, which merges into a vertical wall portion 33.
  • the angle between the housing bottom and the inclined wall region is preferably greater than the angle between the housing bottom and the inclined surface of the luminous element opposite the inclined wall region.
  • ceiling or wall-mounted recessed luminaires can be provided as a light source on a support surface 18 groups of LEDs, wherein the particular reflective executed support surface 18 is positioned in the housing-side region of the radial light portion 9 of the filament 2.
  • the support surface 18 may be mounted on a functional component, in particular a voltage converter.
  • Fig. 5 an embodiment of a recessed luminaire in a rectangular or square shape.
  • polygonal lights can be realized according to the construction principle according to the invention.
  • lighting means 7 are preferably used compact fluorescent lamps. However, this type of light source does not constitute a restriction.
  • the respectively most suitable luminous means can be used, in particular also LEDs, optionally with special additional optics.
  • the basic structure of the rectangular luminaire after Fig. 5 corresponds to the basic structure of the previously described round light after Fig. 4 ,
  • the luminous element 2 is detachably connected to the formally adapted housing 1 and comprises a radial light section 9, an inclined surface region 5 and a front surface 6.
  • the filament 2 is not formed in one piece, but in several parts, in particular the front surface 6 is formed by a separate surface element, which is layered and a micro-prismatic comprises, whose outer prism surface is covered by a preferably crystal-clear outer layer and on the inside of which preferably a diffuser film is provided.
  • the layer structure may also be modified depending on the particular requirements, e.g. in that instead of a crystal-clear, the micro-prism surface from contamination protective top surface a cover layer is selected with specially selected light transmission properties.
  • the intended for the front surface 6 multi-layer structure preferably has a peripheral frame 20 which may be integrally formed on the outer glass surface and is a separate unit, which can be positively bonded or welded to a receiving end portion 21 of the filament 2.
  • the adjoining the inclined surface region 5 end portion 21 is translucent and forms a front light area complementary narrow side luminescent surface.
  • Fig. 6 shows a further embodiment of the invention in the form of a rectangular lamp in built-in version analogous to the embodiment according to Fig. 4 with an edge flange 35 having a rectangular mounting tray. Also in this case, a design is chosen instead of a one-piece filament, in which the front surface 6 is designed as a separate component, which is inserted into an adjoining the inclined surface region 5 end portion or placed on this and in connection with Fig. 5 already described structure has.
  • Fig. 7 shows details of the structure of a according to Fig. 5 or 6 executed recessed light.
  • the reflector pot 14 has a base surface 22 which extends outward in the region of the bottom of the housing 1 and ends radially, but within the vertical projection of the front surface 6, adjoining which is a sloping wall region 23 which merges into a vertical wall section 33 which the usual, the respective mounting wall cross-flange 35 has.
  • the in this case preferably turn multi-part formed luminous body 2 is glued or welded via its vertical wall portion 17 with the peripheral edge of the front surface 6, which is formed by a micro prismatic disc, the inside is usually associated with a diffuser film and the outside, ie on the side of the microprisms are located, is provided with a crystal clear cover 26, the extends in this embodiment, also on the vertical wall portion 17 and this engages over like a hood.
  • the edge portion formed by the vertical wall portion 17 is designed as a light emitting surface, since this vertical wall portion 17 is positioned so as to be located in the direct light area of the respective bulbs.
  • the detachable connection of luminous element 2 and housing 1 is preferably via toggle lever buckles 27, which are easy to operate and have the advantage that they are accessible via the space between the luminous body 2 and reflector pot 14 and virtually blind.
  • a recessed grip 36 is provided in the base surface 22.
  • Such a tension lock consists of a housing 1 to be fastened bearing block 28 to which a lever 29 is pivotally mounted with its one end, while the other end of this lever 29 is pivotally mounted on a longitudinally elastic actuating and locking lever 27, with his from Operating end facing away a clip attachment 32 of the filament 2 engages over and thus pulls the filament 2 against the housing 1 during closing or clamping of the actuating lever 27.
  • a seal is preferably provided which is required for outdoor use and which serves to prevent the ingress of dust in the interior.
  • the clamping lock can be secured by means of an insertable via a blocking opening 31 in the operating lever 27 screw.
  • At least the part 30 of the actuating lever 27 located in the area of the radial light section 9 consists of light-transmitting material.
  • the actuating lever is located in the tensioned state in a matching recess of a Radialleuchtvidebene extending from the inclined surface 5 of the filament 2 down and runs flush with the housing.
  • Fig. 8 shows a designed in the form of a surface-mounted, but also in the sense of the preceding explanations as a recessed design variant of the invention, in which a plurality of mutually spaced on a support surface 18 arranged LED's 19 is provided as a lighting means, each LED 19 a specially designed attachment optics 37th is assigned, which ensures both an axial bundling and a lateral radiation of the light generated by the respective associated LED.
  • LED's here wide emitting LED's, preferably LED's are used with a beam angle of about 120 °.
  • the support surface 18 for the LED's 19 with associated attachment optics 37 is preferably positioned within the lamp body so that the laterally emitted by the attachment optics 39 light hits at least partially on the radial light portion 9 of the lamp.
  • a diaphragm plate 38 Adjacent to the support surface 18, a diaphragm plate 38 is preferably provided, the passage openings for the frustoconical elements of translucent material existing attachment optics 37 has. By positioning this diaphragm plate 38, the proportion of the laterally emitted light can be influenced, which strikes the radial light section 9 as direct light.
  • the number and distribution of the LED's on the support surface 18 can be chosen such that the axially directed light beam on the front surface 6 of the lamp adjacent to each other or at least in the edge regions overlap each other and thus front surface side, a high and uniform luminance is generated.
  • the luminaire according to the invention can also be designed as a suspended luminaire, in which case an at least partially open housing bottom can be provided in order to achieve an additional indirect light output via a ceiling reflection.
  • All embodiments of the luminaire according to the invention are due to their flatness also suitable as an information carrier and can therefore be used for example as pictogram or house number lights use.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Die Erfindung betrifft eine Leuchte, bestehend aus einem topfförmigen, eine Bodenfläche aufweisenden Gehäuse, an dem Leuchtmittel und zugehörige elektrische Komponenten gehaltert sind und in das ein Leuchtkörper formschlüssig eingreift und am Gehäuse lösbar befestigt ist.The invention relates to a luminaire, comprising a cup-shaped, a bottom surface having housing, are mounted on the light source and associated electrical components and in which a luminous body engages positively and is releasably secured to the housing.

Leuchten dieser Art sind bekannt und werden sowohl im Innenbereich als auch im Außenbereich eingesetzt.Luminaires of this type are known and are used both indoors and outdoors.

Aus der US 2003/201704 A1 ist ein vorzugsweise mit einem Schraubsockel versehenes Leuchtmittel in Form einer Lampe bekannt, die als Lichtquelle eine Halogenleuchte aufweist, die hinter einer gleichzeitig als Explosionsschutz dienenden Linse im Gehäusebereich der Lampe angeordnet ist. Die Linse ist in einem Ringbauteil gehalten, das gleichzeitig zur Befestigung eines vorzugsweise aus Glas bestehenden Leuchtkörpers dient, dessen Innenwandung mit einer reflektierenden Beschichtung versehen ist. Das von der Halogenlampe erzeugte Licht wird direkt und auch über einen rückseitig zur Halogenlampe gelegenen Reflektor gegen die reflektierende Innenbeschichtung des Leuchtkörpers und auch zur lichtdurchlässigen Abschlusswand des Leuchtkörpers gerichtet, so dass das gesamte von der Halogenlampe erzeugte Licht an der Vorderseite des Leuchtkörpers und nicht im seitlichen Bereich austritt.From the US 2003/201704 A1 is a lamp preferably provided with a screw in the form of a lamp known, which has a halogen lamp as the light source, which is arranged behind a simultaneously serving as explosion protection lens in the housing portion of the lamp. The lens is held in a ring member, which also serves for fixing a preferably consisting of glass filament whose inner wall is provided with a reflective coating. The light generated by the halogen lamp is directed directly and also via a reflector located at the back to the halogen lamp against the reflective inner coating of the filament and also to the translucent end wall of the filament, so that the entire light generated by the halogen lamp at the front of the filament and not in the side Area exits.

Aus der DE 36 33 976 A1 ist eine seitlich blendungsbegrenzte Leuchte mit einem herabgezogenen Spiegelreflektor bekannt, wobei der untere Rand des Spiegelreflektors einen Lichtstreukörper aufweist. Der Lichtstreukörper, bei dem es sich um ein Prisma oder um eine Reflexionsfläche handelt, ist unmittelbar angrenzend an die Deckenkonstruktion angeordnet, innerhalb der sich der Spiegelreflektor befindet, an dessen Basis das Leuchtmittel, insbesondere eine Lampe oder Glühbirne positioniert ist.From the DE 36 33 976 A1 is a side glare-limited light with a pulled-down mirror reflector known, the lower edge of the mirror reflector has a light scattering body. The light scattering body, which is a prism or a reflection surface, is disposed immediately adjacent to the ceiling structure within which the mirror reflector is located, at the base of which the lighting means, in particular a lamp or light bulb, is positioned.

Aus der US-A-5 173 810 ist eine Licht übertragende Linse zur Verwendung mit einem photoelektrischen Sensor bekannt, wobei in einem etwa halbkugelförmigen, insbesondere aus schwarzem Kunststoff bestehenden Gehäuse eine speziell gestaltete Linse vorgesehen ist, die es ermöglicht, das von einer im Gehäuse bodenseitig angeordneten LED ausgesandte Licht so umzulenken, dass aus der Vorderseite des Gehäuses ein Bündel paralleler Lichtstrahlen austritt und demgemäß das gesamte von der LED erzeugte Licht genutzt werden kann.From the U.S. Patent 5,173,810 a light-transmitting lens for use with a photoelectric sensor is known, wherein in a substantially hemispherical, in particular made of black plastic housing, a specially designed lens is provided, which makes it possible to redirect the light emitted from an LED arranged in the housing bottom side so that From the front of the housing emerges a bundle of parallel light rays and accordingly the entire light generated by the LED can be used.

Aus der WO 01/59365 A ist eine Leuchte mit einer Lampe und mindestens einem - in Abstrahlrichtung gesehen - hinter bzw. seitlich hinter der Lampe angeordneten konkav gekrümmten Reflektor bekannt, wobei seitlich von der Lampe Farbfilter der Art angeordnet sind, dass lediglich das von der Lampe seitlich gegen den mindestens einen konkaven Reflektor abgestrahlte Licht durch die Farbfilter in seiner farblichen Zusammensetzung verändert wird, während das von der Lampe in Abstrahlrichtung abgestrahlte Licht durch die Farbfilter nicht verändert wird. Als Lichtquelle wird dabei eine stabförmige Gasentladungslampe verwendet, die mittig zwischen den seitlichen Farbfiltern angeordnet ist und vor der sich in Raumabstrahlrichtung ein Lichtverteil-Element in Form eines aus Seitenreflektoren und Querlamellen bestehenden Rasters angeordnet ist, über das ein Großteil des von der Lampe abgegebenen Lichts nach unten abgestrahlt wird. Alternativ kann anstelle eines Rasters auch ein Lochblech oder ein anderes optisches Element in Form eines Diffusors oder einer Prismenstruktur verwendet werden. Bei allen Ausführungsformen erscheint der die Lampe umgebende Bereich in einer anderen Farbe, so dass durch die Wahl eines geeigneten Filters verschiedene Effekte und Stimmungen erzeugt werden können.From the WO 01/59365 A is a lamp with a lamp and at least one - viewed in the emission direction - behind or behind the lamp arranged concave reflector known, being arranged laterally of the lamp color filter of the kind that only that of the lamp laterally against the at least one concave Reflector emitted light is changed by the color filter in its color composition, while the radiated by the lamp in the emission direction light is not changed by the color filter. As the light source while a rod-shaped gas discharge lamp is used, which is arranged centrally between the side color filters and before the Raumabstrahlrichtung a Lichtverteil element in the form of consisting of side reflectors and cross louvres grid is arranged on the majority of the light emitted by the lamp after is radiated down. Alternatively, instead of a grid and a perforated plate or other optical element in the form of a diffuser or a Prism structure can be used. In all embodiments, the area surrounding the lamp appears in a different color, so that different effects and moods can be generated by choosing a suitable filter.

Aufgabe der vorliegenden Erfindung ist es, Leuchten der eingangs genannten Art unter gleichzeitiger Schaffung eines unverwechselbaren ästhetischen Erscheinungsbildes konstruktiv einfach, universell einsetzbar und in lichttechnischer Hinsicht derart zu gestalten, dass einerseits großflächig blendungsfreies Direktlicht und andererseits zumindest ein radialer Indirekt-Lichtanteil erhalten wird.Object of the present invention is to make lights of the type mentioned while creating a distinctive aesthetic appearance constructively simple, universally applicable and in lighting terms such that on the one hand large-area glare-free direct light and on the other hand at least one radial indirect light component is obtained.

Gelöst wird diese Aufgabe durch das Zusammenwirken der Merkmale des Patentanspruchs 1.This problem is solved by the interaction of the features of patent claim 1.

Durch die spezielle Formgebung des Leuchtkörper und die gezielte Positionierung der Leuchtmittel gelingt es in wirksamer Weise zum einen die im Wesentlichen ebene Frontfläche gleichmäßig mit Direktlicht zu beaufschlagen und zum anderen die Leuchtdichteunterschiede zwischen Frontfläche und Schrägfläche so zu gestalten, dass zwischen der Schrägfläche und dem Gehäuse ein einen indirekten Lichtanteil liefernder Radiallichtbereich entsteht, welcher aufgrund der eine geringere Leuchtdichte aufweisenden Schrägfläche betont und differenziert von der das Direktlicht liefernden Frontfläche in Erscheinung treten kann.Due to the special shape of the luminous element and the targeted positioning of the bulbs, it is possible to uniformly apply direct light to the essentially flat front surface and to configure the luminance differences between the front surface and the inclined surface in such a way that between the inclined surface and the housing an indirect light-emitting radial light region is produced which, due to the lower luminance, has an inclined surface emphasized and differentiated from the direct light-supplying front surface.

Der Radiallichtabschnitt wird dadurch erhalten, dass der Basisbereich des Leuchtkörpers einen in das topfförmige Gehäuse eingreifenden Befestigungsabschnitt und einen zwischen dem Befestigungsabschnitt und der Schrägfläche gelegenen lichtdurchlässigen, mit Direktlicht beaufschlagten Abschnitt aufweist.The radial light section is obtained by virtue of the fact that the base region of the luminous element has a fixing section engaging in the cup-shaped housing and a transparent, direct-light-applied section located between the fastening section and the oblique surface.

Für die lichttechnische Funktion der erfindungsgemäßen Leuchte ist es von Bedeutung, dass der Aufnahmebereich für das Leuchtmittel oder die Leuchtmittel unterhalb der dem Beginn der Schrägfläche und vorzugsweise unterhalb der dem Beginn des der Schrägfläche vorgeschalteten lichtdurchlässigen Abschnitts entsprechenden Querschnittsebene des Leuchtkörpers gelegen ist, da dies eine wichtige Voraussetzung für die charakteristische Beaufschlagung der verschiedenen Bereiche des Leuchtkörpers mit Direktlicht bzw. Streiflicht ist.It is important for the lighting function of the luminaire according to the invention that the receiving area for the luminous means or the luminous means is located below the cross-sectional plane of the luminous element corresponding to the beginning of the oblique surface and preferably below the translucent section preceding the beginning of the oblique surface, since this is an important Condition for the characteristic loading of the different areas of the filament with direct light or grazing light is.

Gemäß einer vorteilhaften Ausführungsform der Erfindung ist die axiale Höhe des Radiallichtabschnitts kleiner als die axiale Höhe des sich bis zur Frontfläche erstreckenden Schrägflächenabschnittes, wobei die axiale Höhe des Radiallichtabschnittes in bevorzugten Ausführungsformen etwa 30% bis 60% der Höhe des Schrägflächenabschnitts beträgt. Dabei schließt die Schrägfläche mit der Bodenfläche des Gehäuses bevorzugt einen Winkel kleiner 50° ein, und dieser Winkel liegt bei vorteilhaften Ausführungsformen im Bereich von etwa 25° bis 45°.According to an advantageous embodiment of the invention, the axial height of the radial light portion is smaller than the axial height of extending to the front surface inclined surface portion, wherein the axial height of the radial light portion is in preferred embodiments about 30% to 60% of the height of the inclined surface portion. In this case, the inclined surface with the bottom surface of the housing preferably includes an angle of less than 50 °, and this angle is in advantageous embodiments in the range of about 25 ° to 45 °.

Zweckmäßigerweise ist der Übergang zwischen dem Befestigungsabschnitt und dem lichtdurchlässigen, das Radiallicht liefernden Abschnitt in Form einer mit einer Durchmessererhöhung verbundenen, insbesondere rechtwinkligen Stufe gestaltet.Conveniently, the transition between the attachment portion and the translucent, the radial light-supplying portion is designed in the form of a connected with a diameter increase, in particular rectangular step.

Auf diese Weise kann erreicht werden, dass Leuchtkörper und Gehäuse außenbündig ineinander greifen, so dass der Radiallichtabschnitt optisch klar abgegrenzt wird, und zwar einerseits durch das Gehäuse und andererseits durch die lediglich im Streiflichtbereich gelegene Schrägfläche.In this way it can be achieved that the luminous body and the housing engage flush with each other, so that the radial light section is optically clearly delimited, on the one hand by the housing and on the other hand by the inclined surface located only in the grazing light region.

Nach einer vorteilhaften Ausgestaltung der Erfindung ist insbesondere bei einer Rundleuchte im Bereich des Radiallichtabschnitts und bezüglich der Schrägfläche mit vorgebbarem axialem Abstand ein scheibenförmiges Element, insbesondere eine Ringscheibe positioniert, die zumindest im Wesentlichen parallel zur Frontfläche verläuft und deren Durchmesser größer ist als der Durchmesser der Frontfläche.According to an advantageous embodiment of the invention, a disc-shaped element, in particular an annular disc is positioned in particular in a circular lamp in the region of the radial light portion and with respect to the inclined surface with predeterminable axial distance, which extends at least substantially parallel to the front surface and whose diameter is greater than the diameter of the front surface ,

Da diese Ringscheibe im Radiallichtbereich gelegen ist, wird mit Abstand zur voll ausgeleuchteten Frontfläche eine bezüglich der Frontfläche zurückversetzte Leuchtfläche geschaffen, die sowohl in ästhetischer Hinsicht zu einem besonders charakteristischen Erscheinungsbild der Leuchte führt als auch in lichttechnischer Hinsicht einen erwünschten Zusatznutzen erbringt, der sich vor allem auch dann zeigt, wenn der radial innere Bereich der Ringscheibe als zumindest teilweise offener, lichtdurchlässiger Bereich ausgebildet ist und damit die rückseitig der Scheibe gelegene Befestigungsfläche für die Leuchte erhellt werden kann.Since this annular disc is located in the radial light range, a recessed with respect to the front surface luminous surface is created at a distance from the fully illuminated front surface, both aesthetically to a particularly characteristic appearance of the lamp leads as well as in terms of lighting technology, a desirable additional benefits, which is especially evident when the radially inner portion of the annular disc is formed as at least partially open, translucent area and thus the back of the disc location mounting surface for the lamp can be illuminated.

Die Ringscheibe ist vorzugsweise über Kupplungselemente mit dem Gehäuse verbindbar, so dass sie bei Bedarf jederzeit an der Grundausführung der Leuchte angebracht werden kann. Ebenso ist es möglich, die Ringscheibe als Deckwand eines das Gehäuse zumindest teilweise umschließenden Ringraumes auszubilden, wobei der so gebildete Ringraum zur Aufnahme von Funktionskomponenten, wie z.B. einem Vorschaltgerät oder einem Bewegungsmelder, genutzt werden kann.The annular disc is preferably connectable via coupling elements with the housing, so that they can be attached at any time to the basic version of the lamp if necessary. Likewise, it is possible to form the annular disc as a top wall of an annular space at least partially surrounding the housing, wherein the annular space thus formed for receiving functional components, such. a ballast or a motion detector can be used.

Eine besonders bevorzugte Ausführungsform der Erfindung zeichnet sich aus durch eine Ausgestaltung in Form einer decken- oder wandbündigen Einbauleuchte mit einem Reflektortopf, der den Leuchtkörper allseitig mit radialem Abstand umschließt und dessen Öffnungsebene zumindest im Wesentlichen entsprechend der Ebene der Frontfläche des Leuchtkörpers verläuft.A particularly preferred embodiment of the invention is characterized by an embodiment in the form of a ceiling or flush wall recessed luminaire with a reflector pot which surrounds the filament on all sides with a radial distance and the opening plane extends at least substantially corresponding to the plane of the front surface of the filament.

Dabei weist der Reflektortopf entweder eine in einem vorgebbaren Winkel oder etwa parallel zur Schrägfläche des Leuchtkörpers verlaufende Bodenfläche auf, die im Höhenbereich der Schrägfläche in einen Vertikalwandabschnitt übergeht, oder er besitzt eine im Bereich des Gehäusebodens gelegene, sich radial nach außen erstreckende und innerhalb der vertikalen Projektion der Frontfläche endende Basisfläche, an die sich ein Schrägwandbereich anschließt, der wiederum in einen Vertikalwandabschnitt übergeht. Der Schrägwandbereich des Reflektortopfes kann in Abhängigkeit von der gewünschten sichtseitigen Leuchtdichteverteilung steiler oder weniger steil als die Schrägfläche des Leuchtkörpers gewählt werden.In this case, the reflector pot either on a predeterminable angle or approximately parallel to the inclined surface of the filament extending bottom surface, which merges in the height range of the inclined surface in a vertical wall section, or he has a located in the housing bottom, radially outwardly extending and within the vertical Projection of the front surface ending base surface, which is followed by a sloping wall region, which in turn merges into a vertical wall section. The oblique wall region of the reflector pot can be a function of the desired visible luminance distribution steeper or less steep than the oblique surface of the filament are selected.

Bei diesen Ausgestaltungen der Erfindung wird der Radiallichtanteil über den Reflektortopf in der Weise umgelenkt, dass die Lichtabstrahlfläche des Leuchtkörpers durch charakteristisch gelenktes, diffuses Licht vergrößert und durch die unterschiedlichen Leuchtdichten im Bereich des Leuchtkörpers und im Bereich des Reflektortopfes eine gesteigerte ästhetische Differenzierung für den Einsatz als Allgemeinbeleuchtung ohne besondere Entblendungsansprüche erhalten wird.In these embodiments of the invention, the radial light portion is deflected through the reflector pot in such a way that the light emitting surface of the filament increases by characteristic diffused diffused light and by the different luminances in the field of the filament and in the reflector cup increased aesthetic differentiation for use as General lighting without special Entblendungsansprüche is obtained.

Von besonderem Vorteil ist dabei ferner, dass aufgrund von Reflexionen und Streueffekten durch das Zusammenwirken von Schrägflächen des Leuchtkörpers und gegenüberliegenden Reflektortopfwandungen jegliche Verschattungseffekte im Bodenbereich des Reflektortopfes vermieden und der Reflektortopf vollflächig, d.h. auch in seinem Bodenbereich ausgeleuchtet wird, was nicht nur lichttechnisch vorteilhaft ist, sondern auch den ästhetischen Gesamteindruck der Leuchte wesentlich verbessert.Of particular advantage is further that due to reflections and scattering effects by the interaction of inclined surfaces of the filament and opposite Reflektortopfwandungen any shading effects in the bottom region of the reflector pot avoided and the reflector pot over the entire surface, i. is illuminated in its bottom area, which is not only photometrically advantageous, but also significantly improves the aesthetic overall impression of the lamp.

Eine hinsichtlich der erzielbaren Lichtausbeute besonders vorteilhafte Ausführungsform der Erfindung, die sowohl im Falle von Rundleuchten als auch im Falle von Rechteckleuchten Verwendung finden kann, zeichnet sich dadurch aus, dass der Leuchtkörper nicht einteilig ausgebildet, sondern aus mehreren, insbesondere miteinander verklebten oder verschweißten Teilen besteht, wobei zumindest die Frontfläche einen Schichtaufbau mit einer Mikroprismenscheibe umfasst, deren außen liegende Prismen von einer vorzugsweise glasklaren Außenfläche bedeckt sind und an deren Innenseite bevorzugt eine Diffusorfolie vorgesehen ist. Dieser die Frontfläche bildende Schichtaufbau wird zweckmäßigerweise unmittelbar oder über einen den Schichtaufbau umschließenden Rahmen formschlüssig mit einem angepassten Endabschnitt des Leuchtkörpers verbunden, und beide Teile werden miteinander insbesondere verschweißt. Der sich an die Frontfläche anschließende, vorzugsweise vom Endabschnitt des Leuchtkörpers gebildete Bereich des Leuchtkörpers ist dabei als umlaufende Leuchtfläche ausgebildet.A particularly advantageous in terms of achievable light output embodiment of the invention, which can be used both in the case of round lights as well as in the case of rectangular lights, is characterized in that the filament is not integrally formed, but consists of several, in particular glued or welded together parts in which at least the front surface comprises a layer structure with a microprism disk whose outer prisms are covered by a preferably crystal-clear outer surface and on whose inner side a diffuser film is preferably provided. This layer structure forming the front surface expediently becomes directly or via a frame enclosing the layer structure positively connected to a matched end portion of the filament, and both parts are welded together in particular. The adjoining the front surface, preferably formed by the end portion of the filament region of the filament is formed as a circumferential luminous surface.

Die Verwendung des erwähnten Schichtaufbaus führt im Vergleich zu einer Ausführung in Opalglas oder einem entsprechenden Kunststoffmaterial zu einer wesentlichen, beispielsweise bis zu 50% betragenden Erhöhung der Lichtausbeute.The use of the layer structure mentioned leads in comparison to an embodiment in opal glass or a corresponding plastic material to a substantial, for example, up to 50% increase in the light output.

Sowohl im Falle einer runden als auch einer rechteckigen Ausgestaltung der Leuchte können als Leuchtmittel insbesondere ring- oder stabförmige Leuchtstofflampen oder Kompakt-Leuchtstofflampen mit einer Mehrzahl von Leuchtstäben Verwendung finden.Both in the case of a round and a rectangular configuration of the lamp can be used as a light bulbs in particular ring or rod-shaped fluorescent lamps or compact fluorescent lamps with a plurality of light rods.

Ebenso ist die LED-Lichttechnik energieeffizient einsetzbar, indem eine Mehrzahl von LED's auf zumindest einer vorzugsweise reflektierend ausgebildeten Trägerfläche angebracht und die Trägerfläche im gehäuseseitigen Bereich des Radiallichtabschnitts des Leuchtkörpers positioniert wird. Die jeweils gewünschte Lichtfarbe kann durch Einsatz handelsüblicher LED's gewährleistet werden, wobei durch entsprechende Bestückung auch eine RGB-Ausleuchtung möglich ist.Likewise, the LED lighting technology can be used in an energy-efficient manner by attaching a plurality of LEDs to at least one preferably reflective support surface and positioning the support surface in the housing-side region of the radial light section of the luminous element. The particular desired light color can be ensured by using commercially available LED's, with appropriate equipment also RGB illumination is possible.

Bevorzugt ist der Leuchtkörper mit dem Gehäuse über mehrere am Gehäuse gelagerte Kniehebel-Spannverschlüsse kuppelbar. Diese Kniehebel-Spannverschlüsse gestatten nicht nur eine einfache und bei Einsatz einer Dichtung zwischen Leuchtkörper und Gehäuse auch absolut dichte Verbindung beider Körper, sondern sie weisen auch den Vorteil auf, dass sie problemlos betätigbar sind, wenn der Leuchtkörper von einem Reflektortopf umgeben ist, denn diese Spannverschlüsse sind zur Betätigung auch über den Zwischenraum zwischen Leuchtkörper und Reflektortopf zugänglich.Preferably, the luminous element with the housing via a plurality of mounted on the housing toggle lever buckles can be coupled. These toggle clamps not only allow a simple and when using a seal between the light and body and absolutely tight connection between the two bodies, but they also have the advantage that they are easily operable when the lamp from a reflector pot is surrounded, because these latches are accessible for operation via the gap between the luminous element and reflector pot.

Nach einer weiteren Ausgestaltung der Erfindung, die sich unter Beibehaltung aller sonstigen Vorteile des erfindungsgemäßen Grundkonzepts durch eine im Bereich der Frontfläche der Leuchte erzielbare besonders hohe Leuchtdichte auszeichnet, besteht darin, dass als Leuchtmittel eine Mehrzahl von gegenseitig beabstandet in einer zur Frontfläche des Leuchtkörpers parallelen Ebene angeordneten LED's vorgesehen ist, wobei jeder LED eine spezielle Vorsatzoptik zugeordnet ist, die sowohl eine axiale Bündelung als auch eine seitliche Abstrahlung des Lichts bewirkt, wobei die LED's mit zugehöriger Vorsatzoptik bevorzugt im Basisbereich oder zumindest zum Teil im Basisbereich des Leuchtkörpers positioniert sind.According to a further embodiment of the invention, which is characterized by maintaining a particularly high luminance achievable in the region of the front surface of the luminaire while maintaining all the other advantages of the basic concept according to the invention, the plurality of luminous means are mutually spaced apart in a plane parallel to the front surface of the luminous element arranged LEDs is provided, each LED is associated with a special intent optics, which causes both an axial bundling and a lateral emission of light, the LED's with associated attachment optics are preferably positioned in the base region or at least partially in the base region of the filament.

Die Anzahl und die Verteilung der LED's mit zugehöriger Vorsatzoptik wird dabei so gewählt, dass die durch die Vorsatzoptik erhaltenen axial gerichteten Lichtbündel die Frontfläche vollflächig ausleuchten, d.h. im Wesentlichen aneinander angrenzend oder in ihren Randbereichen überlappend auf die Frontfläche treffen. Das seitlich aus der jeweiligen Vorsatzoptik austretende Direktlicht trifft zumindest überwiegend auf den Radiallichtabschnitt der Leuchte, so dass entsprechend dem Grundprinzip der Erfindung wiederum der Radiallichtabschnitt und die Frontfläche mit Direktlicht beaufschlagt werden.The number and distribution of the LED's with associated attachment optics is chosen so that the obtained by the intent optics axially directed light beam illuminate the entire surface of the front surface, i. essentially adjacent to one another or overlapping on the front surface in their edge regions. The direct light emerging laterally out of the respective optical attachment at least predominantly strikes the radial light section of the luminaire, so that, in accordance with the basic principle of the invention, the radial light section and the front surface are in turn subjected to direct light.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen erläutert; in den Zeichnungen zeigt:

Fig. 1
eine schematische Schnittansicht einer Grund-Ausführungsform einer Leuchte gemäß der Erfindung,
Fig. 2
eine Schnittansicht einer Variante der Leuchte nach Fig. 1,
Fig. 3
eine perspektivische Schnittansicht einer weiteren Ausgestaltung der erfindungsgemäßen Leuchte,
Fig. 4
eine schematische Schnittansicht einer als Einbauleuchte gestalteten Ausführungsform der Erfindung,
Fig. 5
eine perspektivische Ansicht einer Ausführungsform in Einbauversion mit Kompakt-Leuchtstofflampen, wobei die Leuchte Rechteckform besitzt,
Fig. 6
eine perspektivische Schrägansicht einer Rechteckleuchte in Form einer Einbauvariante,
Fig. 7
eine perspektivische Teilschnittansicht der Rechteckleuchte nach Fig. 6, und
Fig. 8
eine Teilschnittansicht einer weiteren Ausführungsform einer erfindungsgemäßen Leuchte mit einer Mehrzahl von mit einer Zusatzoptik zusammenwirkenden LED's.
The invention will now be described by way of example with reference to the drawings; in the drawings shows:
Fig. 1
a schematic sectional view of a basic embodiment of a lamp according to the invention,
Fig. 2
a sectional view of a variant of the light according to Fig. 1 .
Fig. 3
a perspective sectional view of another embodiment of the lamp according to the invention,
Fig. 4
a schematic sectional view of a designed as a recessed light embodiment of the invention,
Fig. 5
a perspective view of an embodiment in built-in version with compact fluorescent lamps, the lamp has a rectangular shape,
Fig. 6
a perspective oblique view of a rectangular lamp in the form of a built-in variant,
Fig. 7
a perspective partial sectional view of the rectangular lamp after Fig. 6 , and
Fig. 8
a partial sectional view of another embodiment of a lamp according to the invention with a plurality of cooperating with an additional lens LED's.

Fig. 1 zeigt den Grundaufbau einer Leuchte nach der Erfindung, welche einen insbesondere aus satiniertem Opalglas oder einem entsprechenden Kunststoff bestehenden Leuchtkörper 2 sowie ein zugehöriges topfförmiges Gehäuse 1 umfasst. Fig. 1 shows the basic structure of a luminaire according to the invention, which comprises an existing particular satin-finished opal glass or a corresponding plastic luminous body 2 and an associated cup-shaped housing 1.

Der Leuchtkörper 2 wird von einem mit dem allgemeinen Bezugszeichen 3 gekennzeichneten Basisteil und einem Außenbereich 4 gebildet, wobei der Außenbereich 4 aus einem Schrägflächenbereich 5 und einer Frontfläche 6 besteht. Der Übergang zwischen Schrägflächenbereich 5 und im Wesentlichen ebener bzw. nur leicht nach außengekrümmter Frontfläche 6 erfolgt in dem dargestellten Beispiel über einen gekrümmten Bereich, wobei Frontfläche 6 und Schrägfläche 5 spitzwinklig zueinander verlaufen.The luminous element 2 is formed by a base part designated by the general reference numeral 3 and an outer region 4, wherein the Exterior 4 consists of an inclined surface region 5 and a front surface 6. The transition between the inclined surface region 5 and substantially flat or only slightly outwardly curved front surface 6 takes place in the illustrated example over a curved region, wherein the front surface 6 and inclined surface 5 at an acute angle to each other.

Anstelle des in Fig. 1 gezeigten Übergangs zwischen Schrägflächenbereich 5 und Frontfläche 6 kann als Übergangsbereich auch ein zwischen Schrägflächenbereich 5 und Frontfläche 6 ausgebildeter zylindrischer Bereich von vorgebbarer Höhe vorgesehen sein, der im Gegensatz zum Schrägflächenbereich 5 nicht mit Streiflicht, sondern vor allem mit Direktlicht von den Leuchtmitteln beaufschlagt ist.Instead of in Fig. 1 shown transition between the inclined surface region 5 and front surface 6 may be provided as a transition region between an inclined surface region 5 and front surface 6 cylindrical region of predetermined height, which is acted in contrast to the inclined surface region 5 not with grazing light, but especially with direct light from the bulbs.

Zur Gehäuseseite hin folgt auf den Schrägflächenbereich 5 des Leuchtkörpers 2 ein Radiallichtabschnitt 9, welcher über eine Übergangsstufe 10 in einen Befestigungsabschnitt 8 übergeht, der in das Gehäuse 1 eingreift und am Gehäuse 1 fixierbar ist.Towards the housing side, a radial light section 9, which merges via a transition stage 10 into a fastening section 8, which engages into the housing 1 and can be fixed to the housing 1, follows on the inclined surface region 5 of the luminous element 2.

Das oder die Leuchtmittel 7 sind so gestaltet und/oder positioniert, dass sowohl der Basisbereich 3 bzw. der Radiallichtabschnitt 9 als auch die Frontfläche 6 im Wesentlichen vollflächig mit Direktlicht beaufschlagt sind und die Schrägfläche 5 des Leuchtkörpers 2 im Wesentlichen nur im Streiflichtbereich gelegen ist.The one or more bulbs 7 are designed and / or positioned so that both the base region 3 and the radial light portion 9 and the front surface 6 are substantially fully exposed to direct light and the inclined surface 5 of the filament 2 is located substantially only in the grazing light range.

Ein wesentliches Merkmal der Erfindung ist darin zu sehen, dass die jeweils verwendeten Leuchtmittel 7 zumindest unterhalb einer Ebene positioniert sind, die als gedachte Querebene durch den Beginn des sich erweiternden Schrägflächenbereichs 5 verläuft.An essential feature of the invention is to be seen in that the respectively used light sources 7 are positioned at least below a plane which extends as an imaginary transverse plane through the beginning of the widening inclined surface region 5.

Im dargestellten, hinsichtlich der Formgebung nicht einschränkenden Beispiel einer Rundleuchte ist als Leuchtmittel 7 eine Leuchtstofflampe FC verwendet, aber je nach Dimensionierung der Leuchte können anstelle einer Leuchtstofflampe auch zwei oder mehr Leuchtstofflampen und auch flächige LED-Anordnungen eingesetzt werden, die bevorzugt in der gleichen Ebene gelegen sind.In the example of a round luminaire, which is not limited in terms of shaping, a fluorescent lamp FC is used as the luminous means 7, but depending on the dimensioning of the luminaire, two or more fluorescent lamps and also planar LED arrangements can be used instead of one fluorescent lamp, preferably in the same plane are located.

Die Übergangsstufe 10 zwischen Radiallichtabschnitt 9 und Befestigungsabschnitt 10 des aus Opalglas oder einem geeigneten Kunststoffmaterial bestehenden Leuchtkörpers ist so gewählt und dimensioniert, dass das Gehäuse 1 außenbündig zu dem Radiallichtabschnitt 9 verläuft, wodurch auch eine definierte optische Begrenzung des Radiallichtabschnitts 9 und eine formschlüssige Integration des Gehäuses 1 in den Gesamtaufbau der Leuchte erhalten wird.The transition stage 10 between radial light section 9 and attachment section 10 of the existing opal glass or a suitable plastic material filament is selected and dimensioned so that the housing 1 is flush with the radial light portion 9, whereby a defined optical boundary of the radial light portion 9 and a positive integration of the housing 1 in the overall structure of the lamp is obtained.

In funktioneller Hinsicht erbringt der direkt mit Licht beaufschlagte Radiallichtabschnitt 9 raumseitig einen definierten Anteil an indirektem Licht, das je nach Einbausituation zusätzlich zu dem von der Frontfläche gelieferten Direktlicht in Erscheinung tritt. Die Schrägfläche 5, die über ihre volle Erstreckung im Streiflichtbereich der Lichtquelle 7 gelegen ist, tritt in lichttechnischer Hinsicht nur untergeordnet in Erscheinung, trägt aber zur klaren Differenzierung zwischen Direktlicht und indirektem Licht bei.In functional terms, the radial light section 9, which is directly exposed to light, provides a defined proportion of indirect light on the room side, which, depending on the installation situation, appears in addition to the direct light supplied by the front surface. The oblique surface 5, which is located over its full extent in the grazing light range of the light source 7, occurs in subordinate terms in terms of lighting technology, but contributes to the clear differentiation between direct light and indirect light.

Die axiale Höhe des Radiallichtabschnitts 9 ist vorzugsweise kleiner als die axiale Höhe des sich bis zur Frontfläche 6 erstreckenden Schrägflächenabschnitts, und sie beträgt insbesondere etwa 30 bis 80% der Höhe des Schrägflächenabschnitts.The axial height of the radial light section 9 is preferably smaller than the axial height of the inclined surface section extending up to the front surface 6, and in particular is approximately 30 to 80% of the height of the inclined surface section.

Mit der Bodenfläche des Gehäuses 1 schließt die Schrägfläche 5 einen Winkel kleiner 50° ein, und dieser Winkel liegt vorzugsweise insbesondere im Bereich von 25° bis 45°.With the bottom surface of the housing 1, the inclined surface 5 includes an angle smaller than 50 °, and this angle is preferably in particular in the range of 25 ° to 45 °.

Die Schnittansicht nach Fig. 2 zeigt die Ausführungsform nach Fig. 1 ergänzt um eine mit dem Gehäuse 1 gekoppelte Ringscheibe 11, die in Höhe der Übergangsstufe 10 positioniert ist und einen Durchmesser aufweist, der deutlich größer ist als der Außendurchmesser der Frontfläche 6. In Abhängigkeit davon, welche axiale Höhe für den Radiallichtabschnitt 9 bei der jeweiligen Ausführungsform einer Leuchte nach der Erfindung gewählt wird, wird die Ringscheibe 11 eine mehr oder weniger hohe, jedoch im Vergleich zur Frontfläche 6 stets geringere Leuchtdichte aufweisen, so dass der insgesamt flache Charakter der Leuchte noch stärker betont und es möglich wird, durch Schaffung einer Art Hintergrundbeleuchtung die Frontfläche 6 noch stärker in Erscheinung treten zu lassen. Dies ist beispielsweise von Vorteil, wenn die Frontfläche eine spezielle Kennzeichnung, wie z.B. eine Hausnummerndarstellung aufweist.The sectional view after Fig. 2 shows the embodiment according to Fig. 1 supplemented by an annular disc 11 coupled to the housing 1, which is positioned at the level of the transitional stage 10 and has a diameter which is significantly greater than the outer diameter of the front surface 6. Depending on which axial height for the radial light section 9 in the respective embodiment a lamp is selected according to the invention, the annular disc 11 is a more or less high, but in comparison to the front surface 6 always lower luminance, so that the overall flat character of the light even more emphasized and it is possible by creating a kind of backlight the front surface 6 to make even more apparent. This is for example advantageous if the front surface has a special marking, such as a house number representation.

Günstig erweist es sich bei dieser Ausführungsvariante, wenn der radial innen liegende Tragbereich 24 der Ringscheibe 11 als zumindest teilweise offener und lichtdurchlässiger Bereich ausgebildet ist, da in diesem Falle zusätzlich eine Beleuchtung des zur Befestigung der Leuchte dienenden Wandbereichs über Reflexions- und Streulicht erzielt wird.It is expedient in this embodiment, when the radially inner support portion 24 of the annular disc 11 is formed as at least partially open and translucent area, since in this case an additional illumination of serving for fastening the lamp wall area on reflection and scattered light is achieved.

Fig. 3 zeigt eine Weiterbildung der Leuchte nach Fig. 2, wobei in diesem Falle die Ringscheibe 11 als Deckwand eines das Gehäuse 1 zumindest teilweise umschließenden Ringraumes 13 ausgebildet ist. Bei den zur Schaffung des Ringraumes erforderlichen Elementen handelt es sich bevorzugt um Kunststoff-Formelemente, die auf einfache Weise mit entsprechenden Kupplungswandungen der Ringscheibe 11 verbunden werden können. Der auf diese Weise geschaffene Ringraum dient vorzugsweise zur Aufnahme von Funktionselementen, wie z.B. einem Vorschaltgerät oder einem Bewegungsmelder. Ein Vorschaltgerät 34 kann auch am Boden des Gehäuses 1 befestigt sein. Fig. 3 shows a development of the light after Fig. 2 , In this case, the annular disc 11 is formed as a top wall of the housing 1 at least partially enclosing annular space 13. The elements required to create the annular space are preferably plastic mold elements which are connected in a simple manner to corresponding coupling walls of the annular disk 11 can. The annular space created in this way is preferably used to hold functional elements, such as a ballast or a motion detector. A ballast 34 may also be attached to the bottom of the housing 1.

Fig. 4 zeigt eine besonders vorteilhafte Ausführungsvariante der Erfindung in Form einer decken- oder wandbündigen Einbauleuchte mit einem Reflektortopf 14, der den Leuchtkörper 2 allseitig mit radialem Abstand umschließt und dessen Öffnungsebene 15 zumindest im Wesentlichen entsprechend der Ebene der Frontfläche 6 des Leuchtkörpers 2 verläuft. Der Reflektortopf 14 besitzt eine etwa parallel zur Schrägfläche 5 des Leuchtkörpers 2 verlaufende oder auch steilere Bodenfläche 16, die im Höhenbereich der Schrägfläche 5 in einen Vertikalwandabschnitt 33 übergeht. Sowohl die Bodenfläche 16 als auch der Vertikalwandabschnitt 33 sind über Streu- und Reflexionseffekte gleichmäßig mit Licht beaufschlagt, so dass innerhalb des Reflektortopfes 14 keine Verschattungseffekte auftreten. Fig. 4 shows a particularly advantageous embodiment of the invention in the form of a ceiling or flush wall recessed luminaire with a reflector pot 14 which surrounds the filament 2 on all sides with a radial distance and whose opening plane 15 extends at least substantially corresponding to the plane of the front surface 6 of the filament 2. The reflector pot 14 has an approximately parallel to the oblique surface 5 of the filament 2 extending or steeper bottom surface 16, which merges in the height range of the inclined surface 5 in a vertical wall portion 33. Both the bottom surface 16 and the vertical wall portion 33 are uniformly exposed to light via scattering and reflection effects, so that within the reflector pot 14 no shading effects occur.

Bei einer gegenüber der in Fig. 4 gezeigten Ausführungsform modifizierten, aus Fig. 7 ersichtlichen Variante der Erfindung weist der Reflektortopf 14 eine im Bereich des Gehäusebodens gelegene, sich nach außen erstreckende und radial innerhalb der vertikalen Projektion der Frontfläche 6 endende Basisfläche 22 auf, an die sich ein Schrägwandbereich 23 anschließt, der in einen Vertikalwandabschnitt 33 übergeht. Bevorzugt ist dabei der Winkel zwischen Gehäuseboden und Schrägwandbereich größer als der Winkel zwischen dem Gehäuseboden und der dem Schrägwandbereich gegenüberliegenden Schrägfläche des Leuchtkörpers. Durch diese Ausgestaltung kann aufgrund der sich dabei ergebenden Ausnutzung von Reflexionseffekten erreicht werden, dass der gesamte Reflektortopf einschließlich seiner Basisfläche 22 gleichmäßig mit Licht beaufschlagt wird und dadurch im Inneren des Reflektortopfs 24 keine das ästhetische Erscheinungsbild störende dunklere bzw. verschattete Bereiche vorliegen.At one opposite the in Fig. 4 modified embodiment shown, from Fig. 7 apparent variant of the invention, the reflector pot 14 has a located in the region of the housing bottom, outwardly extending and radially within the vertical projection of the front surface 6 ending base surface 22, to which a slanted wall portion 23 connects, which merges into a vertical wall portion 33. In this case, the angle between the housing bottom and the inclined wall region is preferably greater than the angle between the housing bottom and the inclined surface of the luminous element opposite the inclined wall region. As a result of this configuration, due to the resulting utilization of reflection effects, it is possible for the entire reflector pot, including its base surface 22, to be uniformly exposed to light and thereby present in the interior of the reflector pot 24 no disturbing the aesthetic appearance darker or shaded areas.

Bei den geschilderten Ausführungsformen von decken- oder wandseitigen Einbauleuchten können als Leuchtmittel auf einer Trägerfläche 18 Gruppen von LED's vorgesehen werden, wobei die insbesondere reflektierend ausgeführte Trägerfläche 18 im gehäuseseitigen Bereich des Radiallichtabschnitts 9 des Leuchtkörpers 2 positioniert ist. Die Trägerfläche 18 kann auf einem Funktionsbauteil, insbesondere einem Spannungswandler angebracht sein.In the described embodiments of ceiling or wall-mounted recessed luminaires can be provided as a light source on a support surface 18 groups of LEDs, wherein the particular reflective executed support surface 18 is positioned in the housing-side region of the radial light portion 9 of the filament 2. The support surface 18 may be mounted on a functional component, in particular a voltage converter.

Durch die über den Reflektortopf 14 erzielte Umlenkung des Radiallichtanteils zur Öffnungsseite der Leuchte hin und auch durch die im Reflektortopf wirksam werdenden Diffuslichtanteile wird ein ästhetisch hochwertiges Erscheinungsbild der Einbauleuchte erzielt. Durch die unterschiedlichen Leuchtdichten zwischen der mit einem hohen Direktlichtanteil beaufschlagten Frontfläche 6 und dem die Frontfläche 6 umgebenden Topfbereich wird erreicht, dass die Frontfläche 6 plastisch stark differenziert in Erscheinung tritt, so dass ein unverwechselbares, charakteristisches Gesamt-Erscheinungsbild geschaffen wird.Due to the deflecting of the radial light portion over the reflector pot 14 towards the opening side of the luminaire and also through the diffuser light components becoming effective in the reflector pot, an aesthetically high-quality appearance of the recessed luminaire is achieved. Due to the different luminances between the front surface 6, which is exposed to a high proportion of direct light, and the pot region surrounding the front surface 6, it is ensured that the front surface 6 differs in a highly differentiated manner, so that a distinctive, characteristic overall appearance is created.

Während die bisher geschilderten Ausführungsformen der Erfindung als Rundleuchten gestaltet waren, zeigt Fig. 5 eine Ausführungsform einer Einbauleuchte in Rechteck- bzw. Quadratform. Generell können nach dem erfindungsgemäßen Konstruktionsprinzip Vieleckleuchten realisiert werden. Als Leuchtmittel 7 finden bevorzugt Kompakt-Leuchtstofflampen Verwendung. Diese Art der Lichtquelle stellt jedoch keine Beschränkung dar. Je nach Ausgestaltung und auch Größe der Leuchte können die jeweils bestmöglich geeigneten Leuchtmittel zum Einsatz gebracht werden, insbesondere auch LED's, gegebenenfalls mit spezieller Zusatzoptik.While the previously described embodiments of the invention were designed as round lights, shows Fig. 5 an embodiment of a recessed luminaire in a rectangular or square shape. In general, polygonal lights can be realized according to the construction principle according to the invention. As lighting means 7 are preferably used compact fluorescent lamps. However, this type of light source does not constitute a restriction. Depending on the design and also the size of the luminaire, the respectively most suitable luminous means can be used, in particular also LEDs, optionally with special additional optics.

Der Grundaufbau der Rechteckleuchte nach Fig. 5 entspricht dem Grundaufbau der bereits geschilderten Rundleuchte nach Fig. 4. Der Leuchtkörper 2 ist mit dem formmäßig angepassten Gehäuse 1 lösbar verbunden und umfasst einen Radiallichtabschnitt 9, einen Schrägflächenbereich 5 sowie eine Frontfläche 6.The basic structure of the rectangular luminaire after Fig. 5 corresponds to the basic structure of the previously described round light after Fig. 4 , The luminous element 2 is detachably connected to the formally adapted housing 1 and comprises a radial light section 9, an inclined surface region 5 and a front surface 6.

Die Besonderheit dieser nicht auf Rechteckleuchten beschränkten, sondern in gleicher Weise für Rundleuchten geltenden Ausführungsform besteht darin, dass der Leuchtkörper 2 nicht einteilig, sondern mehrteilig ausgebildet ist, wobei insbesondere die Frontfläche 6 von einem separaten Flächenelement gebildet wird, das schichtförmig aufgebaut ist und eine Mikroprismenscheibe umfasst, deren außen liegende Prismenfläche von einer vorzugsweise glasklaren Außenlage bedeckt ist und an deren Innenseite vorzugsweise eine Diffusorfolie vorgesehen ist.The peculiarity of this not limited to rectangular lights, but equally applicable to round lights embodiment is that the filament 2 is not formed in one piece, but in several parts, in particular the front surface 6 is formed by a separate surface element, which is layered and a micro-prismatic comprises, whose outer prism surface is covered by a preferably crystal-clear outer layer and on the inside of which preferably a diffuser film is provided.

Durch diesen Aufbau wird ein im Vergleich zu einer Opalglasausführung deutlich höherer Wirkungsgrad verbunden mit Blendungsfreiheit erzielt.By this construction, compared to an opal glass version significantly higher efficiency combined with glare freedom is achieved.

Der Schichtaufbau kann in Abhängigkeit von den jeweils bestehenden Forderungen auch modifiziert werden, z.B. dahingehend, dass anstelle einer glasklaren, die Mikroprismenfläche vor Verschmutzung schützenden Deckfläche eine Decklage mit speziell gewählten Lichtdurchlasseigenschaften gewählt wird.The layer structure may also be modified depending on the particular requirements, e.g. in that instead of a crystal-clear, the micro-prism surface from contamination protective top surface a cover layer is selected with specially selected light transmission properties.

Der für die Frontfläche 6 bestimmte Mehrschichtaufbau weist bevorzugt einem Umfangsrahmen 20 auf, der an die Außenglasfläche angeformt sein kann und stellt eine separate Baueinheit dar, die mit einem Aufnahme-Endabschnitt 21 des Leuchtkörpers 2 formschlüssig verklebt oder verschweißt werden kann.The intended for the front surface 6 multi-layer structure preferably has a peripheral frame 20 which may be integrally formed on the outer glass surface and is a separate unit, which can be positively bonded or welded to a receiving end portion 21 of the filament 2.

Der sich an den Schrägflächenbereich 5 anschließende Endabschnitt 21 ist lichtdurchlässig und bildet eine die Front-Leuchtfläche ergänzende schmale Seitenleuchtfläche.The adjoining the inclined surface region 5 end portion 21 is translucent and forms a front light area complementary narrow side luminescent surface.

Fig. 6 zeigt eine weitere Ausführungsform der Erfindung in Form einer Rechteckleuchte in Einbauversion analog der Ausführungsform nach Fig. 4 mit einer einen Randflansch 35 aufweisenden Rechteck-Einbauwanne. Auch in diesem Falle ist anstelle eines einteiligen Leuchtkörpers eine Gestaltung gewählt, bei der die Frontfläche 6 als separates Bauteil ausgeführt ist, das in einen sich an den Schrägflächenbereich 5 anschließenden Endabschnitt eingesetzt oder auf diesen aufgesetzt ist und den im Zusammenhang mit Fig. 5 bereits beschriebenen Aufbaus besitzt. Fig. 6 shows a further embodiment of the invention in the form of a rectangular lamp in built-in version analogous to the embodiment according to Fig. 4 with an edge flange 35 having a rectangular mounting tray. Also in this case, a design is chosen instead of a one-piece filament, in which the front surface 6 is designed as a separate component, which is inserted into an adjoining the inclined surface region 5 end portion or placed on this and in connection with Fig. 5 already described structure has.

Die Teilschnittansicht nach Fig. 7 zeigt Einzelheiten des Aufbaus einer gemäß Fig. 5 oder 6 ausgeführten Einbauleuchte.The partial section view after Fig. 7 shows details of the structure of a according to Fig. 5 or 6 executed recessed light.

Der Reflektortopf 14 weist dabei eine im Bereich des Bodens des Gehäuses 1 gelegene, sich nach außen erstreckende, radial jedoch innerhalb der vertikalen Projektion der Frontfläche 6 endende Basisfläche 22 auf, an die sich ein Schrägwandbereich 23 anschließt, der in einen Vertikalwandabschnitt 33 übergeht, welcher den üblichen, die jeweilige Einbauwand übergreifenden Flansch 35 aufweist.In this case, the reflector pot 14 has a base surface 22 which extends outward in the region of the bottom of the housing 1 and ends radially, but within the vertical projection of the front surface 6, adjoining which is a sloping wall region 23 which merges into a vertical wall section 33 which the usual, the respective mounting wall cross-flange 35 has.

Der in diesem Falle bevorzugt wiederum mehrteilig ausgebildete Leuchtkörper 2 ist über seinen Vertikalwandabschnitt 17 mit dem Umfangsrand der Frontfläche 6 verklebt oder verschweißt, die von einer Mikroprismenscheibe gebildet wird, der innenseitig im Regelfall eine Diffusorfolie zugeordnet ist und die außenseitig, d.h. an der Seite, an der sich die Mikroprismen befinden, mit einer glasklaren Abdeckung 26 versehen ist, die sich in dieser Ausführungsform auch über den Vertikalwandabschnitt 17 erstreckt und diesen haubenartig übergreift. Auf diese Weise wird der vom Vertikalwandabschnitt 17 gebildete Randbereich als Licht abgebende Fläche gestaltet, da dieser Vertikalwandabschnitt 17 so positioniert ist, dass er im Direktlichtbereich der jeweiligen Leuchtmittel gelegen ist.The in this case preferably turn multi-part formed luminous body 2 is glued or welded via its vertical wall portion 17 with the peripheral edge of the front surface 6, which is formed by a micro prismatic disc, the inside is usually associated with a diffuser film and the outside, ie on the side of the microprisms are located, is provided with a crystal clear cover 26, the extends in this embodiment, also on the vertical wall portion 17 and this engages over like a hood. In this way, the edge portion formed by the vertical wall portion 17 is designed as a light emitting surface, since this vertical wall portion 17 is positioned so as to be located in the direct light area of the respective bulbs.

Die lösbare Verbindung von Leuchtkörper 2 und Gehäuse 1 erfolgt bevorzugt über Kniehebel-Spannverschlüsse 27, die einfach zu betätigen sind und den Vorteil besitzen, dass sie auch über den Raum zwischen Leuchtkörper 2 und Reflektortopf 14 zugänglich und praktisch blind bedienbar sind. Zweckmäßigerweise ist dazu in der Basisfläche 22 eine Griffmulde 36 vorgesehen.The detachable connection of luminous element 2 and housing 1 is preferably via toggle lever buckles 27, which are easy to operate and have the advantage that they are accessible via the space between the luminous body 2 and reflector pot 14 and virtually blind. Conveniently, a recessed grip 36 is provided in the base surface 22.

Ein derartiger Spannverschluss besteht aus einem am Gehäuse 1 zu befestigenden Lagerbock 28, an dem ein Hebel 29 mit seinem einen Ende schwenkbar gelagert ist, während das andere Ende dieses Hebels 29 an einem längselastischen Betätigungs- und Rasthebel 27 schwenkbar gelagert ist, der mit seinem vom Betätigungsende abgewandten Ende einen Klemmansatz 32 des Leuchtkörpers 2 übergreift und somit beim Schließen bzw. Spannen des Betätigungshebels 27 den Leuchtkörper 2 gegen das Gehäuse 1 zieht. Zwischen Gehäuse 1 und Leuchtkörper 2 ist dabei vorzugsweise eine Dichtung vorgesehen, die für den Außenbereich benötigt wird und im Innenbereich dazu dient, das Eindringen von Staub zu verhindern.Such a tension lock consists of a housing 1 to be fastened bearing block 28 to which a lever 29 is pivotally mounted with its one end, while the other end of this lever 29 is pivotally mounted on a longitudinally elastic actuating and locking lever 27, with his from Operating end facing away a clip attachment 32 of the filament 2 engages over and thus pulls the filament 2 against the housing 1 during closing or clamping of the actuating lever 27. Between housing 1 and luminous element 2, a seal is preferably provided which is required for outdoor use and which serves to prevent the ingress of dust in the interior.

Zur Sicherung der Verbindung zwischen Leuchtkörper 2 und Gehäuse 1, die insbesondere bei Montage der Leuchte im Außenbereich zweckmäßig ist, kann der Spannverschluss mittels einer über eine Blockieröffnung 31 im Betätigungshebel 27 einbringbare Schraube gesichert werden.To secure the connection between the luminous body 2 and the housing 1, which is particularly useful when mounting the lamp in the outdoor area, the clamping lock can be secured by means of an insertable via a blocking opening 31 in the operating lever 27 screw.

Um zu verhindern, dass das ästhetische Erscheinungsbild der Leuchte durch die Spannverschlüsse beeinträchtigt wird, besteht zumindest der im Bereich des Radiallichtabschnitts 9 gelegene Teil 30 des Betätigungshebels 27 aus lichtdurchlässigem Material. Der Betätigungshebel ist im gespannten Zustand in einer passenden Ausnehmung einer Radialleuchtflächenebene gelegen, die sich ausgehend von der Schrägfläche 5 des Leuchtkörpers 2 nach unten erstreckt und bündig zur Gehäusewandung verläuft.In order to prevent the aesthetic appearance of the luminaire from being impaired by the tension locks, at least the part 30 of the actuating lever 27 located in the area of the radial light section 9 consists of light-transmitting material. The actuating lever is located in the tensioned state in a matching recess of a Radialleuchtflächenebene extending from the inclined surface 5 of the filament 2 down and runs flush with the housing.

Fig. 8 zeigt eine in Form einer Aufbauleuchte dargestellte, jedoch auch im Sinne der vorhergehenden Erläuterungen als Einbauleuchte gestaltbare Ausführungsvariante der Erfindung, bei der als Leuchtmittel eine Mehrzahl von gegenseitig beabstandet auf einer Trägerfläche 18 angeordnete LED's 19 vorgesehen ist, wobei jeder LED 19 eine speziell ausgebildete Vorsatzoptik 37 zugeordnet ist, die sowohl eine axiale Bündelung als auch eine seitliche Abstrahlung des von der jeweils zugehörigen LED erzeugten Lichts gewährleistet. Als LED's werden hier breit abstrahlende LED's, vorzugsweise LED's mit einem Abstrahlwinkel von etwa 120° verwendet. Die Trägerfläche 18 für die LED's 19 mit zugehöriger Vorsatzoptik 37 wird bevorzugt derart innerhalb des Leuchtenkörpers positioniert, dass das von der Vorsatzoptik 39 seitlich abgestrahlte Licht zumindest zum Teil auf den Radiallichtabschnitt 9 der Leuchte trifft. Angrenzend an die Trägerfläche 18 ist bevorzugt eine Blendenplatte 38 vorgesehen, die Durchtrittsöffnungen für die aus kegelstumpfförmigen Elementen aus lichtdurchlässigem Material bestehende Vorsatzoptik 37 aufweist. Durch die Positionierung dieser Blendenplatte 38 lässt sich der Anteil des seitlich abgestrahlten Lichts beeinflussen, der als Direktlicht auf den Radiallichtabschnitt 9 trifft. Fig. 8 shows a designed in the form of a surface-mounted, but also in the sense of the preceding explanations as a recessed design variant of the invention, in which a plurality of mutually spaced on a support surface 18 arranged LED's 19 is provided as a lighting means, each LED 19 a specially designed attachment optics 37th is assigned, which ensures both an axial bundling and a lateral radiation of the light generated by the respective associated LED. As LED's here wide emitting LED's, preferably LED's are used with a beam angle of about 120 °. The support surface 18 for the LED's 19 with associated attachment optics 37 is preferably positioned within the lamp body so that the laterally emitted by the attachment optics 39 light hits at least partially on the radial light portion 9 of the lamp. Adjacent to the support surface 18, a diaphragm plate 38 is preferably provided, the passage openings for the frustoconical elements of translucent material existing attachment optics 37 has. By positioning this diaphragm plate 38, the proportion of the laterally emitted light can be influenced, which strikes the radial light section 9 as direct light.

Von besondere Bedeutung ist im Zusammenhang mit dieser Ausführungsform der Erfindung, dass die Anzahl und die Verteilung der LED's auf der Trägerfläche 18 derart gewählt werden kann, dass die axial gerichteten Lichtbündel an der Frontfläche 6 der Leuchte aneinander angrenzend oder zumindest in den Randbereichen aneinander überlappend auftreffen und damit frontflächenseitig eine hohe und gleichmäßige Leuchtdichte erzeugt wird.Of particular importance in connection with this embodiment of the invention is that the number and distribution of the LED's on the support surface 18 can be chosen such that the axially directed light beam on the front surface 6 of the lamp adjacent to each other or at least in the edge regions overlap each other and thus front surface side, a high and uniform luminance is generated.

Die erfindungsgemäße Leuchte kann auch als Hängeleuchte ausgebildet werden, wobei in diesem Falle ein zumindest bereichsweise offener Gehäuseboden vorgesehen sein kann, um eine zusätzliche indirekte Lichtabgabe über eine Deckenreflexion zu erreichen.The luminaire according to the invention can also be designed as a suspended luminaire, in which case an at least partially open housing bottom can be provided in order to achieve an additional indirect light output via a ceiling reflection.

Alle Ausführungsformen der erfindungsgemäßen Leuchte sind aufgrund ihrer Flächigkeit auch als Informationsträger geeignet und können daher beispielsweise als Piktogramm- oder Hausnummern-Leuchten Verwendung finden.All embodiments of the luminaire according to the invention are due to their flatness also suitable as an information carrier and can therefore be used for example as pictogram or house number lights use.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Gehäusecasing
22
Leuchtkörperilluminant
33
Basisbereichbase region
44
Außenbereichoutdoors
55
Schrägflächesloping surface
66
Frontflächefront surface
77
LeuchtmittelLamp
88th
Befestigungsabschnittattachment section
99
RadiallichtabschnittRadial light section
1010
ÜbergangsstufeTransition stage
1111
Ringscheibewasher
1212
Kupplungselementcoupling member
1313
Ringraumannulus
1414
Reflektortopfreflector pot
1515
Öffnungsebeneopening plane
1616
Bodenflächefloor area
1717
VertikalwandabschnittVertical wall section
1818
Trägerflächesupport surface
1919
LEDLED
2020
Rahmenframe
2121
Endabschnittend
2222
Basisflächefootprint
2323
SchrägwandbereichSlanting wall area
2424
Tragbereichsupport area
2525
Prismenscheibeprism Screen
2626
Glas-DecklageGlass liner
2727
SpannverschlussLever Release
2828
Lagerbockbearing block
2929
Schwenkhebelpivoting lever
3030
lichtdurchlässiger Hebelbereichtranslucent lever area
3131
Blockieröffnungblocking opening
3232
Klemmansatzterminal approach
3333
Vertikalwandabschnitt ReflektortopfVertical wall section Reflector pot
3434
Vorschaltgerätballast
3535
Randflanschedge flange
3636
Griffmuldegrip
3737
Vorsatzoptikoptical head
3838
Blendenplatterestrictor plate

Claims (30)

  1. A luminaire, comprising a pot-shaped housing (1) which has a base surface
    and on which illuminants (7, 19) and associated electrical components are mounted; and
    into which a luminaire member (2) comprising a frosted opal glass or a corresponding plastic engages in a shape matched manner and is releasably fastened to the housing (1),
    wherein the luminaire member (2) includes a base region (3) which at least substantially corresponds to an axial extension of the housing and which consists of a fastening section (8) engaging into the pot-shaped housing (1) and of a radial light section (9) disposed between the fastening section (8) and a slanted surface (5) of the luminaire member (2), wherein furthermore the slanted surface (5) expands continuously starting from the radial light section (9) belonging to the base region (3) and merges either directly or via a vertical wall section (17) into a front surface (6) extending approximately perpendicular to the central axis of the luminaire member;
    and the slanted surface (5) includes an angle of less than 50° with the base surface of the housing (1);
    and the illuminant or illuminants (7, 19) is or are positioned and/or designed beneath the cross-sectional plane corresponding to the start of the slanted surface (5) such that both the radial light section (9) and the front surface (6) are illuminated with direct light by the illuminants (7, 19) substantially over their whole area and the total slanted surface (5) is substantially only disposed in the sidelight region of the illuminants (7, 19) to achieve a lower light density in comparison with the front surface (6) such that it only has a subsidiary appearance in a technical light aspect, but contributes to a clear differentiation between direct light and indirect light.
  2. A luminaire in accordance with claim 1,
    characterized in that
    the illuminants (7, 19) are disposed beneath the start of the cross-sectional plane corresponding to the radial light section (9) disposed before the slanted surface (5).
  3. A luminaire in accordance with claim 1 or claim 2,
    characterized in that
    the axial height of the radial light section (9) is smaller than the axial height of the slanted surface section (5) extending up to the front surface (6).
  4. A luminaire in accordance with claim 3,
    characterized in that
    the axial height of the radial section (9) amounts to 30% to 60% of the height of the slanted surface section.
  5. A luminaire in accordance with claim 1,
    characterized in that
    the slanted surface (5) includes an angle in the range from approximately 25 to 45° with the base surface of the housing (1).
  6. A luminaire in accordance with claim 1,
    characterized in that
    a transition is provided between the fastening section (8) and the radial light section (9) in the form of a step (10), in particular a right-angled step, associated with an increase in diameter.
  7. A luminaire in accordance with claim 1,
    characterized in that
    a ring plate (11) is positioned in the region of the radial light section (9) and with a presettable axial spacing with respect to the slanted surface (5), said ring plate extending at least substantially parallel to the front surface (6) and its diameter being larger than the diameter of the front surface (6).
  8. A luminaire in accordance with claim 6 and claim 7,
    characterized in that
    the ring plate (11) is arranged at the level of the transition step (10) between the fastening section (8) and the radial light section (9) and is connected to the housing (1) via coupling elements (12).
  9. A luminaire in accordance with claim 8,
    characterized in that
    the radially inner region (24) of the ring plate (11) is made as an at least partly open, light permeable region.
  10. A luminaire in accordance with one of the claims 7, 8 or 9,
    characterized in that
    the ring plate (11) is made as a top wall of a ring space (13) at least partly surrounding the housing (1) for the reception of electronic units, e.g. a motion detector or ballast.
  11. A luminaire in accordance with any one of the preceding claims,
    characterized by
    a design in the form of a built-in luminaire flush with a ceiling or a wall and having a reflector pot (14) which surrounds the luminaire member (2) on all sides with radial spacing and whose opening plane (15) extends at least substantially corresponding to the plane of the front surface (6) of the luminaire member (2).
  12. A luminaire in accordance with claim 11,
    characterized in that
    the reflector pot (14) has a base surface (16) which extends, starting from the upper end region of the housing (1), at a predefinable angle and preferably approximately parallel to the slanted surface (5) of the luminaire body (2) and which merges in the vertical region of the slanted surface (5) into a vertical wall section (33).
  13. A luminaire in accordance with claim 11,
    characterized in that
    the reflector pot (14) has a base surface (22) which is disposed in the region of the housing base, extends radially outwardly, ends inside the vertical projection of the front surface (6) and is adjoined by a slanted wall region (23) which merges into a vertical wall section (33).
  14. A luminaire in accordance with claim 13,
    characterized in that
    the angle between the housing base and the slanted wall region (23) is larger than the angle between the housing base and the slanted surface (5) of the luminaire member (2) disposed opposite the slanted wall region (23).
  15. A luminaire in accordance with claim 13,
    characterized in that
    the angle between the housing base and the slanted wall region (23) is smaller than the angle between the housing base and the slanted surface (5) of the luminaire member (2) disposed opposite the slanted wall region (23).
  16. A luminaire in accordance with claim 1 or claim 2,
    characterized in that
    fluorescent lamps, in particular of ring or rod shape, positioned in the region and at the level of the fastening section (8) of the luminaire member (2) or compact fluorescent lamps with at least four light rods are provided as the illuminants (7).
  17. A luminaire in accordance with claim 1 or claim 2,
    characterized in that
    LEDs (19), in particular monochromatic LEDs, arranged on at least one support surface (18) are provided as illuminants (7), with the support surface (18) being positioned in the region of the radial light section (9) of the luminaire member (2) at the housing side.
  18. A luminaire in accordance with claim 17,
    characterized in that
    the support surface (18) is reflective.
  19. A luminaire in accordance with any one of the claims 1, 11 and 14 to 17,
    characterized in that
    the luminaire member (2) is made as a round luminaire or polygonal luminaire, in particular a rectangular luminaire, and an optionally associated reflector pot (14) is matched in its shape.
  20. A luminaire in accordance with claim 19,
    characterized in that
    the luminaire member (2) consists of opal glass or of a plastic material effective in a technical light manner.
  21. A luminaire in accordance with claim 19,
    characterized in that
    the luminaire member (2) comprises a plurality of parts, in particular adhesively bonded or welded together, with at least the front surface (6) including a layer structure having a microprism screen whose outwardly disposed prisms are covered by an outer surface which is preferably as clear as glass and at whose inner side a diffuser foil is preferably provided.
  22. A luminaire in accordance with claim 21,
    characterized in that
    the layer structure forming the front surface (6) can be connected in a shape matched manner to the matched free end section (21) of the luminaire member (2) directly or via a frame (20) surrounding the layer structure and preferably made in one part with the outer surface, which is as clear as glass, to form a unit.
  23. A luminaire in accordance with claim 21 or claim 22,
    characterized in that
    the region of the luminaire member (2) adjoining the front surface (6) and preferably formed by the end section (21) forms a peripheral, in particular opal lighting surface.
  24. A luminaire in accordance with claim 1 or claim 11,
    characterized in that
    the luminaire member (2) is fastened to the housing (1) via over center lever clamps (27) supported at the housing (1) and in particular accessible via the space between the luminaire member (2) and the reflector pot (14).
  25. A luminaire in accordance with claim 24,
    characterized in that
    the over center lever clamps (27) are arranged externally flush in cut-outs of the housing (1) and of the radial light section (9) in the clamped state.
  26. A luminaire in accordance with claim 24 or claim 25,
    characterized in that
    at least the part of the clamp (27) extending over the level of the radial light section (9) is light permeable.
  27. A luminaire in accordance with claim 1,
    characterized in that
    a plurality of mutually spaced apart LEDs (19) arranged in a plane parallel to the front surface (6) of the luminaire member (2) are provided as illuminants (7);
    in that an optical attachment (37) is associated with each LED (19) and effects both an axial bundling and a lateral radiation of the light; and
    in that the LEDs (19) with the associated optical attachment (33) are positioned preferably at least partly in the base region (3) of the luminaire member (2).
  28. A luminaire in accordance with claim 27,
    characterized in that
    widely radiating LEDs having a radiation angle of preferably approximately 120° are used as the LEDs (19).
  29. A luminaire in accordance with claim 27 or claim 28,
    characterized in that
    the number and distribution of the LEDs (19) with optical attachment (37) are selected such that the axially directed light bundles are incident on the front surface (6) substantially adjacent to one another or overlapping one another in the marginal regions.
  30. A luminaire in accordance with one of the claims 27 to 28,
    characterized in that
    the elements forming the optical attachment (37) and made of light permeable material are designed in truncated cone shape and the associated LEDs (19) are arranged centrally at the end of the elements having the smaller diameter.
EP07015209.5A 2007-08-02 2007-08-02 Lighting device Not-in-force EP2020563B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07015209.5A EP2020563B1 (en) 2007-08-02 2007-08-02 Lighting device
CA002638382A CA2638382A1 (en) 2007-08-02 2008-07-30 Luminaire
MX2008009848A MX2008009848A (en) 2007-08-02 2008-07-31 Luminaire.
US12/184,454 US20090034253A1 (en) 2007-08-02 2008-08-01 Luminaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07015209.5A EP2020563B1 (en) 2007-08-02 2007-08-02 Lighting device

Publications (2)

Publication Number Publication Date
EP2020563A1 EP2020563A1 (en) 2009-02-04
EP2020563B1 true EP2020563B1 (en) 2015-01-14

Family

ID=38710538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07015209.5A Not-in-force EP2020563B1 (en) 2007-08-02 2007-08-02 Lighting device

Country Status (4)

Country Link
US (1) US20090034253A1 (en)
EP (1) EP2020563B1 (en)
CA (1) CA2638382A1 (en)
MX (1) MX2008009848A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116146936B (en) * 2023-04-04 2023-06-27 广东基地照明有限公司 Intelligent environment-adjusting low-blue-light eye-protection classroom lampshade

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Also Published As

Publication number Publication date
CA2638382A1 (en) 2009-02-02
EP2020563A1 (en) 2009-02-04
US20090034253A1 (en) 2009-02-05
MX2008009848A (en) 2009-02-27

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