EP1154200A2 - Distributeur de lumière pour un système d'éclairage, système d'éclairage et utilisation d' un système d'éclairage - Google Patents

Distributeur de lumière pour un système d'éclairage, système d'éclairage et utilisation d' un système d'éclairage Download PDF

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Publication number
EP1154200A2
EP1154200A2 EP01810441A EP01810441A EP1154200A2 EP 1154200 A2 EP1154200 A2 EP 1154200A2 EP 01810441 A EP01810441 A EP 01810441A EP 01810441 A EP01810441 A EP 01810441A EP 1154200 A2 EP1154200 A2 EP 1154200A2
Authority
EP
European Patent Office
Prior art keywords
light
distributor
hole
holes
distributor element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01810441A
Other languages
German (de)
English (en)
Other versions
EP1154200B1 (fr
EP1154200A3 (fr
Inventor
Jean-Marc Hess
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.)
Regent Beleuchtungskoerper AG
Original Assignee
Regent Beleuchtungskoerper AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP1154200A2 publication Critical patent/EP1154200A2/fr
Publication of EP1154200A3 publication Critical patent/EP1154200A3/fr
Application granted granted Critical
Publication of EP1154200B1 publication Critical patent/EP1154200B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/14—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures with many small apertures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to a light distributor for a Lighting device and a lighting device with at least a light distributor.
  • the lighting device can for example consist of a lamp, such as a pendant, recessed, floor or wall lamp, exist as a light source at least one electrical Lamp, for example at least one tubular and / or U-shaped fluorescent lamp.
  • the lighting device can also be used as a continuous line lighting device be formed, the one rail and at least one row along which this has successive lamps which for example again from tubular and / or U-shaped Fluorescent lamps exist.
  • the lighting device is special for use in a room, such as an open plan office, provided in which at least one person on one Screen works.
  • the piece of sheet metal is in some versions with collars protruding downwards Mistake.
  • the light transmission holes are either complete or mostly cylindrical and have in the latter Fall down tapering from the top Section. The ratio between the lengths and the cross-sectional dimensions the holes are set so that the light radiated directly through the light transmission holes with a horizontal plane at least equal to a given one Blanking angle is.
  • the boundary surfaces of the Light transmission holes at least somewhat reflective can be generated by the light source such a lighting device, however, after a one-off or repeated reflection on the boundary surfaces of the light transmission holes also in "flat", i.e. almost horizontal Directions through the holes of the distributor element in the room containing the lighting device and directly on blasted a screen arranged in this room become. Such light can also get into the eyes from the screen be reflected on a person working on it and these blind. So if the boundary surfaces mentioned The known ones can be somewhat light-reflecting Lighting devices do not really avoid glare. If the boundary surfaces of the light transmission holes that on they would completely absorb incident light, there would only be a low yield of that from the light source generated light.
  • Other known light distributors have one as a distributor element serving lamella grid with two parallel to each other Sidebars or a four sidebars Frame and a number on the sidebars and / or possibly slats attached to each other.
  • the marginal ridges and slats consist of thin, light-reflecting pieces of sheet metal.
  • the slats are usually a few centimeters distances from each other.
  • the sidebars and slats are usually a few centimeters high.
  • Such Light distributors therefore have the disadvantage that the louvre grid a relatively large height of at least, for example or about 2 centimeters, which is often undesirable is.
  • a large number of individual slats have to be produced and above all be attached individually. The production and putting together a lamella grid is therefore very expensive.
  • the invention is based on the object of a light distributor to create the disadvantages of the known light distributors fixes.
  • the light distributor should in particular enable direct light emission in undesired directions to suppress and still take up little space, above all to occupy only a small height range.
  • the light distributor should also be economically producible and enable a high luminous efficiency.
  • this object is achieved by a light distributor solved with the features of claim 1.
  • the invention further relates to a lighting device the features of claim 10 and a use of the Lighting device according to claim 14.
  • the housing 1 shows a ceiling 1 of a room of a building, about an open-plan office, and a lighting device 3 evident.
  • the latter is designed as a pendant lamp and has a housing consisting essentially of sheet metal 5.
  • the housing 5, which is only partially drawn, is essentially symmetrical with respect to a vertical center plane 6.
  • the housing is held on the ceiling 1 with holding means 7, namely suspended flexibly and through a free space separated from the ceiling.
  • the housing 5 limits two on different sides of the vertical median plane 6 arranged light source chambers 9 and one at the same height device chamber 11 arranged between them.
  • Each light source chamber 9 can be at least largely open at the top and have at least one opening 13.
  • the light source chamber 9 contains at least one lamp socket 15, namely for example two at a distance from each other opposite lamp holders 15.
  • the light source chamber also contains an artificial light source 17 with at least an electric lamp 19, for example two tubular, straight fluorescent lamps that are parallel to each other at a short distance from each other from the lamp holders are held.
  • the Light distributor 21 generally has the shape of a flat, horizontal, square, namely rectangular plate, the two longer edges of the light distributor to the tubular fluorescent lamps are parallel. The light distributor at least closes the light source chamber most towards the bottom.
  • the housing 5 contains two him attached side reflectors 23 along the tubular fluorescent lamps 19 run and on each other facing away from these are arranged.
  • the reflectors 23 are near the side boundaries of the Light source chamber arranged and / or form these limits at least in part.
  • the side reflectors 23 extend from the top edges of the housing down to at least approximately to the light distributor 21, so that the lower edges of the reflectors, for example, in the Close to the longer side edges of the light distributor on the located on the top of this.
  • the side reflectors are for example, inclined towards each other downwards.
  • the one another facing surfaces of those belonging to the same light source Reflectors 23 are light-reflecting and, for example, in Vertical section curved concave.
  • the inner surfaces of the two the light source chambers 9 at their ends delimiting end walls of the housing preferably Light-reflecting.
  • the device chamber 11 contains at least a ballast 25 and for example for each lamp electronic ballast.
  • One of the light distributors 21 is separate in FIGS. 2 and 3 and has three originally separate, each one-piece, rigidly connected parts, namely from bottom up a distributor element 31, a diffuser 33 and an aperture 35.
  • the one also shown separately in FIG. 4, at least essentially plate-shaped distributor element 31 has an upper one, which faces the light source 17 Side or surface, hereinafter referred to as a single beam side 31a and / or single-beam surface 31a.
  • the lower one side or surface of the distributor element facing away from the light source 17 31 is used as a radiation side 31b and / or radiation surface Designated 31b.
  • the distributor element 31 has an areal, i.e.
  • each light transmission hole 31d is in each light transmission hole 31d provided with a collar 31e. This protrudes on the single-beam side or surface 31a of the flat, flat main portion 31c of the distributor member 31 away above.
  • Each light transmission hole 31d defines together with a straight hole axis 31f to the collar 31e assigned to it.
  • the hole axes 31f of all holes 31d are parallel to one another, perpendicular to that of the main section 31a as well as its Beam page 31b defined level and if the Lighting device is mounted on the ceiling 1, approximately vertical.
  • Each light transmission hole 31d is through one of its Hole boundary surface 31g enclosing hole axis 31f limited and has a first, upper, on the single-beam side 31a of the distributor element 31 located hole end 31h and a second, lower one, on the radiation side of the Element 31 located hole end 31i.
  • Each hole 31d has a plan view of the distributor element 31 a circular outline and extends from the first, upper Hole end 31h to the second, lower hole end 31i.
  • the hole boundary surface 31g of each light transmission hole 31d is in all axial cuts running through its hole axis 31f at least in the largest part of its axial dimension and namely preferably everywhere smooth and continuously curved and from the first hole end to the second hole end from the hole axis directed outwards.
  • any hole boundary surface is also at least the largest in all circumferential positions Part of the axial hole dimension, namely from the top, first Hole end down to the lower part of the hole in all axial cuts slightly concave at least for the most part.
  • each hole boundary surface 31g has the second, lower hole end 31i preferably a short, in Axial section convexly curved transition section, the remaining, concavely curved part of the hole boundary surface 31g smooth and steady with that of the main section 31c formed, flat part of the radiation surface 31b connects.
  • the curvature of the hole boundary surfaces is also preferably set such that each hole boundary surface at least approximately down their entire height is inclined away from the hole axis of the hole in question.
  • Each light transmission hole 31d has the dimensions shown in FIG. 3, namely an axial dimension or height a measured parallel to its hole axis, a minimum diameter d min at the first, upper end and a maximum diameter d max at the second, lower end.
  • the diameter d min is of course equal to the clear width of the hole.
  • the hole axes 31f of the holes 31d which are closest to one another have the center distance c from one another.
  • the thickness, or more precisely the material thickness, of the distributor element measured at the flat main section 31c is designated by e in FIG. 3.
  • the axial dimension or height a of the light transmission holes 31d is preferably at least 30%, preferably at most 100% and, for example, about 40% to 80% of the clear width or the minimum diameter d min .
  • the clear width d min is preferably at least 2 mm, expediently at most 15 mm, preferably at most 10 mm and for example about 3 mm to 8 mm.
  • the maximum diameter d max of the holes 31d is preferably at least 10% and more preferably at least 20% to, for example, approximately 80% larger than the minimum diameter d min .
  • the axial dimension a of the holes 31d is preferably at least 1.5 mm, expediently at most 15 mm, preferably at most 10 mm and for example 2 mm to 5 mm.
  • the material thickness e is preferably at most 1 mm, more preferably at most 0.7 mm and for example approximately 0.5 mm.
  • the axial dimension a of the holes 31d is thus substantially greater than the material thickness e and is preferably at least 2 times, better at least 3 times and, for example, about 5 times to 10 times this. Accordingly, each hole boundary surface 31g is formed at least for the most part by the inner surface of the collar 31e located at the hole in question.
  • the holes 31d which are adjacent to one another can, for example, form straight rows of holes parallel to the shorter edges of the distributor element.
  • the hole axes of the adjacent rows of holes are shifted in the longitudinal directions of the rows of holes by half a center distance c from each other.
  • the rows of holes are also spaced apart from one another in such a way that the axes of the next adjacent holes of two adjacent rows of holes have the same center distance c from one another as the holes belonging to the same row of holes.
  • the holes are thus distributed in the manner of a densest packing over the surface of the distributor element. However, this has narrow hole-free edge strips at the edges.
  • the center distance c is preferably at most 50% and, for example, only about 20% to 40% larger than the maximum diameter d max of the holes 31d.
  • the main section 31c of the distributor element 31 accordingly has only relatively narrow webs between the holes which are closest to one another. Furthermore, the light transmission holes 31d occupy a relatively large part of the surface of the distributor element in the plan, so that this enables a high light transmission.
  • each light distributor is made made of an opaque material, namely sheet metal, for example made of aluminum or an aluminum alloy. At least the hole boundary surfaces 31g and those with them contiguous and / or forming radiation surface 31b the distributor element 31 should be light-reflecting and good be reflective. By “reflective” it is meant that the reflective surfaces at least almost completely smooth and reflect the light according to the mirror laws, so that an incident beam of light and a reflected one Beam of light with a plumb line onto the reflective surface form equal angles.
  • the distribution element is preferably with the radiation surface and the hole boundary surfaces with a reflective layer formed by anodizing provided, for example, with a very thin, very translucent protective layer is.
  • the reflective layer and any protective layer can in for the manufacture of reflectors for Lights are made known ways.
  • the single beam surface 31a and those related to this and / or of this formed outer surfaces of the collars 31e can for Example also be good light reflecting and reflecting and a reflection layer formed by anodizing exhibit.
  • the single-beam surface and the outer surfaces of the However, collars can also be light-reflecting, but not reflective, but widening and / or be diffuse light-reflecting and one incident light beam when reflecting to a Widen the beam and / or more or less according to to radiate from Lambert's law.
  • the reflected Luminous flux can be used for both reflecting and the diffuse reflection at least 80% and for example at least 90% of that radiated on the reflecting surface Luminous flux. If there is still an aperture 35, the irradiation surfaces 31a and the outer surfaces of the Collars 31e, however, do not necessarily have a high reflection coefficient exhibit.
  • the diffuser 33 of each light distributor consists of one completely flat film made of a translucent, but matted on one or each of the two film surfaces as well as, for example, clear material inside, for example a plastic, such as polyester or polycarbonate or Polymethacrylic ester. However, the slide could take place superficially matted on the inside or both matted be clouded as well.
  • the diffuser is on the Single-beam side 31a of the distributor element 31 and lies on the upper edges of the collars 31e.
  • the diffuser 33 is completely flat and at least in the area of the light transmission holes 31d of the distributor element 31 without holes and to Example completely hole-free and compact.
  • the diffuser covers therefore, the light transmission holes 31d are completely closed.
  • the fat the diffuser is preferably at most 0.5 mm, better at most 0.3 mm and for example about 0.1 mm. The The diffuser is therefore significantly thinner than the distributor element.
  • the diaphragm 35 of each light distributor is located between the light source 17 and the diffuser 33 and rests on the latter.
  • the diaphragm 35 consists at least essentially of a completely flat plate and has a circular light transmission hole 35d for each light transmission hole 31d of the distributor element 31.
  • the diameter of the light transmission holes 35d of the diaphragm 35 is, for example, approximately equal to the diameter d min of the light transmission holes 31d of the distributor element 31.
  • the holes 33d are therefore approximately in register with the first hole ends 31h of the holes 31d facing them.
  • the diaphragm 35 consists of a light-impermeable material, namely the same as the distributor element 31 made of sheet metal made of aluminum or an aluminum alloy.
  • the diaphragm 35 is, for example, approximately the same thickness as the flat main section of the distributor element 31.
  • the distributor element 31, the aperture 35 and the between are arranged diffuser 33 of each light distributor 21 at their edges by connecting and / or fastening means firmly and rigidly connected so that they together form a plate-shaped unit.
  • the connection and / or for example, fasteners can be attached to at least two edges facing away from each other or on all four edges the light distributor 31 or the diaphragm 35 arranged, not drawn, hooked and / or approximately L-shaped, with the remaining part of the distributor element or the panel connected Have clamping sections, the edges of the other Parts of the light distributor overlap and these parts together jam and hold together. Otherwise, they can three parts 31, 33, 35 may still have their edges mounting holes not shown or other fasteners be provided to at least the largest Part or all of the light distributors formed by them 21 to be attached to the housing 5.
  • the entire height of the light distributor 21 is essentially - i.e. - apart from those that still exist, for example, previously mentioned connection and / or fastening means equal to the sum of the axial dimension a of Light transmission holes 31d of the distributor element 31 and of the thickness of the diffuser 33 and the aperture 35.
  • the height of the Light distributor 21 is therefore only slightly larger than that axial dimension a of the holes 31d and like this, expediently at most 15 mm, preferably at most 10 mm or even a maximum of 5 mm.
  • the low height of the Light distributor 21 allows the entire housing 5 of the Train the lamp relatively low.
  • the h designated height of the housing 5 of the pendant lamp preferably at most 50 mm, for example only at most about 40 mm and possibly only about 30 mm.
  • light distributors 21 are from flat metal sheets that are already at least one by anodizing have formed reflection layer, sheet metal pieces with the desired to form distributor elements 31 and panels 35 Outlined shapes and dimensions.
  • One for Formation of a distributor-serving, flat sheet metal piece is then punched with the light transmission holes 31d and by reshaping or plastic deformation, namely Thermoforming, provided with the collars 31e.
  • Holes 31d for example at least one row of holes, or possibly even all holes 31d of the distributor element 31 at the same time from the originally hole-free piece of sheet metal to be punched out.
  • Collars 31e or even all collars 31e through at the same time Thermoforming can be used at the same time Collars 31e or even all collars 31e through at the same time Thermoforming.
  • each Light source chamber 9 Light source chamber 9 light generated by lamps 19 directly and possibly - depending on the design of the housing and the reflectors 23 and any other reflectors - after at least one previous reflection by reflecting Walls of the housing and / or reflectors below to the light distributor 21 of the light source chamber in question be blasted. Part of this light can pass through Light transmission holes 35d of the aperture 35, through the diffuser 33 and the light transmission holes 31d of the distributor element 31 into the one located under the light distributor Area to be blasted. The light distributor 21 steers and distributes this light.
  • the diffuser 33 causes scattering of the light reaching and penetrating him, so that at the bottom hole end 31i of each light transmission hole 31d of the distributor element 31 is a bundle of light beams is emitted in different directions. Some such bundles of light rays are indicated in FIG. 1 and designated 39.
  • Light coming from the light source 17 can also be of this type are blasted into one of the holes 31d from above, that this light - such as the light beam 43 in Fig. 3 - strikes the hole boundary surface 31g of the hole and after one or more reflections this hole-delimiting surface below from the hole in question is blasted out.
  • the minimum angle formed with a horizontal plane the one that shines through the entire light distributor Light can - depending on the dimensioning of the diameter Light transmission holes 35d of the aperture 35 - also through these holes 35d are affected and slightly larger than that Be angle ⁇ .
  • the holes 31d and the holes of the aperture 35 can be designed and dimensioned such that the minimum angle ⁇ and / or that determined by the entire light distributor Minimum angle of the down from the light distributor radiated light preferably with a horizontal plane at least about 25 ° or a little more, for example is approximately 30 °.
  • the lighting device illuminates that is, the area of the building space below it both directly through the light distributor 21 as well indirectly with the first blasted up against the ceiling 1 Light.
  • the diffusers 33 of the two light distributors 21 cause a beam expansion and distribution of them penetrating light and prevent one more or standing less vertically under the lighting device 3 and to this looking person clearly recognizes the lamps.
  • one of the light distributors 21 penetrates and accordingly with a horizontal Plane forms an angle that is at least equal to that Minimum angle is ⁇ .
  • the bottom from the lighting fixture emerging light rays are therefore approximately vertical and / or inclined and at most form with a vertical an angle complementary to the angle ⁇ and therefore an angle between 0 ° and (90 ° - ⁇ ).
  • the lighting device results a so-called for light that is directed directly downwards All-round glare control.
  • the with the help of the lighting device and other same lighting fixtures illuminated building space can have at least one screen and for example several contain such. Computer screens and the like are usually steeply inclined and / or more or less vertical.
  • the formation of the lighting device 3 and the light distributor 21 enable a high luminous efficiency.
  • the light distributor can be manufactured economically and be assembled.
  • the low Heights of the light distributors 21 and the housing 5 and thus - apart from the holding means 7 - the entire Luminaire 3 many options for design the lighting device.
  • By anodizing with reflective layers provided light-reflecting surfaces of the metallic, plate-shaped parts 31, 35 result in a very good light reflection and retain their reflective properties for a long time.
  • at least the most of the light distributors forming metallic Parts 31, 35 non-flammable.
  • each of the light distributors 21 can also be omitted. If this is the case, then the Single-beam surface 31a and those related to it The outer surfaces of the collars 31e of the distributor element 31 are good Be light-reflective. Especially when there is no aperture 35 are present, each light source 17 also emits light the outer surfaces of the collars 31e and the flat portions of the irradiation surface 31a from one of the distributor elements 31. This light is then at least largely replenished single or multiple reflection back up and at least partially through the diffuser 33 and the opening 13 blasted through out of the housing 5 above. As a result of Reflection on the outer surfaces of the collars 31e and as a result of The distribution taking place in the diffuser then also forms a large part of this light reflected upwards pretty big angle with a vertical.
  • the light distributors 21 do not have any apertures 35 can also have light in the located next to the light transmission holes are sections of a diffuser 33 blasted become.
  • the diffuser can then possibly be for a part of this light act more or less as a light guide and for example part of such light in the range of one of the light transmission holes 35d down into this radiate in, so that the diffuser can the light transmission holes down out of the housing radiated light can increase slightly.
  • a ceiling 101 and one are simplified Light device 103 shown with a housing 105 can be seen.
  • the latter is for example as a recessed lamp formed at least for the most part in a recess the ceiling 101 sunk.
  • the housing delimits a light source chamber, which is an artificial, electrical light source 117 with a straight, tubular fluorescent lamp 119 contains.
  • a light distributor 121 with a plate-shaped main portion 121a. This is in a direction parallel to the tubular fluorescent lamp straight and roughly horizontal, but in one to this Bent towards the right-angled vertical section in such a way that the upper surface of the light distributor facing the lamp is concave.
  • the light distributor 121 has two straight, parallel to each other and to fluorescent lamp 119 Longitudinal edges of the main section 121a away from this Shields 121b protruding below. These are, for example roughly vertically or down a little apart inclined towards the outside and at least with each other inside more or less facing surfaces as well as Example also with their outer surfaces light-reflecting.
  • the housing 105 contains two reflectors 123, the ones on next adjacent edge sections above the Lamp 119 are arranged.
  • the lower, reflective Surfaces of the reflectors are concave. The reflectors protrude along the longitudinal edges of the main portion 121a of the Light distributor 121 past down to about the lower edges of the housing 105.
  • the housing 103 contains a Ballast 125, for example above one of the Reflectors 123 arranged between this and walls of the housing is, however, instead analogous to that in FIG. 1 in a separate chamber next to the one containing the light source Chamber could be.
  • the light distributor 121 has one that can be seen in FIG. 6 Distribution element 131, an invisible diffuser and an also not visible aperture.
  • the distribution element 131 has an areal main section 131c. Like the entire light distributor, this is continuous bent so that its single-beam side and / or face 131a in a right angle to the tubular fluorescent lamp Vertical section is concavely curved.
  • the main section 131c of the distributor member 131 has that of the whole Light distributor 121 two to the tubular fluorescent lamp parallel longitudinal edges and two shorter, curved edges.
  • the curved main portion 131c of the distributor member 131 has a plurality of light transmission holes 131d and at each of these one arranged on the single-beam side Collar 131e.
  • Each hole 131d defines a hole axis 131f.
  • the hole axes are perpendicular to the curved main section 131c as well as on tangential planes, which are in the Hole axes to the curved one defined by the main section Nestle area.
  • the hole axes 131f are therefore not all parallel to each other, but mostly upwards against a vertical longitudinal median plane of the distributor element inclined.
  • the light transmission holes 131d can all be the same or may be slightly different from each other.
  • the Distribution element 131 has at the two straight longitudinal edges of the main section 131c projecting downward from this, strip-shaped sections, hereinafter referred to as shields 131k.
  • the diffuser not shown is bent analogously to the flat main section 131c of the distributor element 131.
  • the aperture not shown has an areal main section, which is bent analogously like that of the distributor member 131 and light transmission holes having.
  • the aperture can also shields 131k corresponding to the distributor element 131, projecting downwards have strip-shaped sections or shields. These can, for example, at their lower edges Crimp with the shields 131k of the distributor element 131 be connected and together with these shields 131k in Fig. 5 shields 121b of the whole Form light distributor 121. So each shield 121b is two layers and from a strip-shaped section of the Distribution element 131 and a strip-shaped section the aperture formed.
  • This strip-like sections or Shields also serve as Lanyard that connects the different parts of the Firmly connect light distributor 121 together. It would be however also possible, only the distributor element 131 or only to provide the screen with shields or the To form shields from separate parts.
  • the lighting device 103 can emit light rays when in use down through the light distributor 121 radiate so that at each light transmission hole 131d of the distributor element 131 a bundle of light rays emitted downwards the light rays with different directions contains. Some such bundles of light rays are in 5 and indicated with 139.
  • the shields 121b ensure that despite the inclination of most Hole axes only light down through the light transmission holes is blasted with a horizontal plane certain minimum angle of, for example, at least 25 ° forms.
  • the lighting device 103 can also from the reflectors 123 reflected light rays 151 on both long sides of the light distributor 121 next to this downwards shine.
  • the light distributor 121 and the reflectors 123 are designed and arranged so that all next to the Light distributor 121 passing light rays radiated downwards 151 form an angle with a horizontal plane, which is at least equal to the desired minimum angle.
  • the height of the housing 105 of the built-in lamp can - depending from the design of the reflectors 123 and the arrangement of the ballast 125 - may be slightly larger than with the pendant lamp, but can still at most 50 mm and for example at most or approximately 40 mm.
  • the lighting device 103 may be of similar design and the like Have properties and advantages like that Lighting device 3.
  • the lighting device shown in Figures 7 to 10 203 is again designed as a pendant lamp and has a housing 205 with a square, namely rectangular Frame 206.
  • This has four frame legs 206a, of which, for example, is made from a light metal profile bar and has a rectangular cross section, hollow section 206b and three of the upper, narrower ones Rectangular side ribs 206c, 206d, 206e having.
  • Inner rib 206c and middle rib 206d protrude to the same height.
  • the outermost rib 206e is a little higher and at its upper, free end with one behind inside protruding barb 206f Mistake.
  • the housing 205 is on the longer Frame legs 206a fastened holding means 207 to one
  • the ceiling is kept at a distance from it, namely movable hung up.
  • the light distributor 221 has a distributor element 231 on the one located at the bottom of the frame 206 quadrangular, namely rectangular, flat, in General planar main portion 231c with light transmission holes 231d owns.
  • the distributor element 231 has again upwards from the main area 231c protruding collars which largely delimit holes 231d 231e.
  • the upper and lower sides of the main section 231c form the single-beam side and / or single-beam surface 231a or the radiation side and / or radiation surface 231b of the Main section and the whole distributor element 231.
  • the Main section 231c of the distributor element 231 is approximate flush with the bottom frame surface and hangs on everyone its four edges with one up away from it angled and / or bent wall together, which too serves as a reflector, and exists with these walls and / or Reflectors together from a one-piece sheet.
  • the at the two shorter, opposing edges of the Main section 231c arranged end walls and / or end reflectors are designated 231m and 231n.
  • the two two longer, opposing edges of the Main section 231c arranged side walls and / or Side reflectors are labeled 231p and 231q.
  • the Walls and / or reflectors 231m, 231n, 231p, 231q are located located inside the frame 206, in places at least approximately on its inner surfaces and have on their upper ends angled outwards and / or curved, approximately horizontal margins. These lie for the frame legs 206a on the edges of the inner and middle ribs 206c, 206d and are, for example at least with the longer frame legs from above in these screwed screws 237 releasably on the frame attached.
  • distributor elements 231 can also be used as Components of the housing 205 are viewed and limit together with the frame 206 a light source chamber 209 which has an opening 213 at the top and thus essentially open at the top is.
  • the end wall 231n has at least one lamp socket 215 with two lamp holders arranged side by side 215 provided.
  • the light source 217 has two side by side lamps arranged in the light source chamber 209 219, which in this variant are made of U-shaped, fluorescent lamps stuck in one of the lamp sockets at one end, so-called PLL lamps exist.
  • the side wall 231p is angled so that it coincides with the a device chamber 211 for the frame leg located there limited, arranged in the at least one ballast 225 and is fixed.
  • the other side wall 231q is for example 10 angled slightly wedge-shaped, see above that it has a vertex protruding towards the light source.
  • the light distributor 221 has in addition to the distributor element 231 on a flat diffuser 233, which in turn consists of a translucent plastic film.
  • the diffuser 233 lies on the single-beam side 231a of the Main portion 231c on the upper edges of collars 231e on and is through the walls or reflectors 231m, 231n, 231p, 231q held with little play and against slipping secured.
  • the light distributor 221 has none of the diaphragm 35 appropriate aperture, but could still possibly have one.
  • the distributor element 231 is formed similarly to that Distributor element 31. If the light distributor 221 is not one of the Aperture 35 has the corresponding aperture, should be in the distributor element 231 but definitely both the single-beam side or surface as well as the radiation side or surface good Be light-reflective.
  • the light transmission holes 231d and Collars 231e of the distributor element 231 can be analog be produced as for the distributor element 31st has been described.
  • the lighting device 203 thus enables - as in particular also the lighting device 3 - a very easy replacement of a lamp and also a pretty easy replacement of a ballast.
  • the lighting device shown in part in Fig. 11 303 has two lighting units 304. Each of these is for example largely the same or similar in design the lighting device shown in Figures 7 to 10 203 and, like this, has a housing 305 with a frame 306.
  • the two frames 306 are arranged such that two of them longer frame legs 306a spaced parallel next to each other run. Between these adjacent to each other A frame piece 308 is arranged, the for example a U-shaped profile bar open towards the top and / or a cuboid box open towards the top and has at least part of the length of the mutually adjacent frame legs of the two light units extends.
  • the two lighting units 304 are with at least one holder 310 and for example with at least two such rigidly and releasably connected.
  • the or each holder has elastically deformable, barb-like Latching tabs 310a, which from above into each other adjacent frame legs of the two frames clipped and then the lugs 306f of the two frame legs reach around.
  • the lighting device 303 can then for example with holding means not shown on one Ceiling can be hung.
  • the Lighting device 403 shows a lighting device 403 with two Luminous units 404, between which a spacer 408 is arranged and with this with holders analogous to that two lighting units 304 are connected to one another.
  • the Lighting device 403 is designed as a floor lamp and has a stand 410 with a foot and one, for example vertical, the spacer 408 rigid with respect to the foot or rotatable and possibly height-adjustable rod.
  • Figure 13 also shows a floor lamp trained lighting device 503. However, this has not two light units, but only one that one Has housing 503. This and the parts arranged in it are, for example, similar to those in the Figures 7 to 10 shown lighting device 203.
  • An a holding piece 508 is attached to one of the frame legs, possibly clipped onto the frame legs with holders.
  • On Stand 510 has a rod holding the holding piece.
  • the housing described with reference to Figures 7 to 10 the parts arranged in it can be selected individually or together with an essentially identical one Housing to form a held on a ceiling Luminaire or a floor lamp can be used.
  • the like can such or similar housing to form a a wall-mounted wall lamp can be used. This diverse uses of essentially identically designed housings and lighting units economically of great advantage.
  • Lighting device 603 has a generally cuboid housing 605 with a Light source chamber 505, at least the largest at the top Part is open and contains an artificial light source 617.
  • This in turn has at least one electric lamp 619 , for example one drawn with full lines Lamp and possibly another arranged next to it, dash-dotted lamp is present.
  • each lamp 619 consists of a tubular, fluorescent lamp running in the longitudinal direction of the housing.
  • the light distributor 621 of the lighting device 603 has again a distributor element 631 with a flat, i.e. essentially 2-dimensional, generally flat Main section 631c. This is particularly evident in the Figures 16 and 17 can be seen and again has a single-beam side and / or single-beam surface 631a, a radiation side and / or radiation surface 631b and light transmission holes 631d. For each light transmission hole 631d is again one of the face-sticking main section 631c upwardly projecting collar 631e available.
  • Each hole 631d has a hole boundary area 631g, a first, upper hole end 631h with a Center 631r, a second, lower hole end 631i with a Center 631s and a straight, through centers 631r, 631s hole axis 631f of the two hole ends.
  • the hole axis 631f of each hole 631d forms with one of the areal Main section, for example from its radiation side 631b and / or radiation surface 631b and defined flat surface at an angle other than 90 ° and is parallel to a plane that is perpendicular to said flat surface defined by the main section and vertical to the longitudinal direction of the housing and the tubular lamp (s) is.
  • the hole axes 631f of all holes 631d are for Example against the one defined by the main section, flat surface inclined and parallel to each other. Every hole axis 631f forms with a normal 631t to that of Main section 631c defines a plane in FIG. 16 with ⁇ designated angle, which is for example about 10 ° to 30 °.
  • the collar 631e of each hole 631d is that in FIG. 16 drawn section non-rotationally symmetrical with respect to the Hole axis 631f and higher and steeper to the left of the hole axis than on the right side of the hole axis.
  • the edge of the first one top hole end 631h and / or that of this edge defined, for example approximately flat surface accordingly against the one defined by the main section 631c flat surface inclined.
  • the hole boundary surface 631g is at least the largest Part formed by the inner surface of a collar 631e, possibly also at the first, upper end of the hole existing, narrow, in axial sections along the circumference of the hole differently inclined sheet metal inner surface as part of the Hole boundary surface can be viewed.
  • the hole boundary surface is in all through the hole axis 631f Cuts at least for the most part - namely everywhere except in the one formed by the inner surface of the sheet metal Area - smooth and continuously curved.
  • the hole boundary surface is on the left, higher side in FIG. 16 of the collar at least for the most part concave and on the right side convex curved.
  • each hole 631d widens in axial cuts through all circumferential points at least in most of its axial dimension - namely everywhere apart from the sheet metal inner edge surfaces - from the first to the second hole end smooth and steady.
  • the hole boundary surface is accordingly at least for the most part axial dimension of the hole in all axial sections down towards the second hole end away from the hole axis directed to the outside - at least if one of the Edges at the top and bottom of the hole - inclined.
  • the edge of the first, upper hole end is, for example roughly elliptical, with the longer axis of the ellipse is parallel to the longitudinal direction of the housing.
  • the edge of the second, lower end of the hole is at least approximately, for example circular, but with the hole axis to that edge containing level defined by the radiation side 631b is inclined.
  • Ranges of dimensions and dimensional relationships can with respect to the distributor element 631, for example, approximately for the axial dimension measured on the hole axis 631f and for the shorter elliptical axis of the approximately elliptical first, upper hole ends 631h of holes 631d apply, whereby but this axial dimension of the holes 631d and / or the perpendicular to the main section 631c to the center or to height measured to the highest edge of the upper hole end of the holes 631d possibly up to approximately 150% of the clear width could be.
  • the light transmission holes 631d of the distribution element 631 are analogous to the distributor element 31 in straight, for In the longitudinal direction of the housing vertical rows are arranged.
  • the Centers 631s of the second hole ends 631i closest to each other holes located next to each other have the in 17 specified distance c.
  • the distributor element 631 can possibly walls connected with a main section and / or have reflectors.
  • the light distributor 621 has only one in the figures 14 and 16 drawn diffuser 633. This again exists from a flat film and lies on the highest points of the Collars 631e.
  • the lighting device 603 also has at least one ballast, not shown, for Example similarly arranged in one of the lighting devices 3, 203 can be.
  • a few light rays 639 are also shown in FIG. 14, that of the lamp drawn with full lines to the light distributor 621 and down through it get out of the housing 605. These rays of light show approximately the average direction of radiation from the lamp through the various light transmission holes 631d of the Distribution element 631 of radiated light. As a result of asymmetrical formation of holes 631d is more light blasted to the bottom right than to the bottom left. It can for example, be appropriate if the Lighting device 603 near one to the left of it located wall is arranged. The one from that down a hole emitted light with a horizontal The minimum angle formed may possibly be different distributed around the hole axis of the hole, through this trending levels vary.
  • the light distributor 621 is however, again trained so that everything through him light radiated downwards out of the housing with a horizontal plane at least a minimum angle forms with the size mentioned earlier.
  • the lighting device 603 can, for example, optionally as Pendant lamp or floor lamp or wall lamp and - unless previously written otherwise - similar Properties like those described before Have lighting devices.
  • the lighting devices, their light distributors and their manufacture the latter can be modified in other ways become.
  • features of the in the various embodiments shown can be combined with each other.
  • the housings, fasteners, Reflectors and lamps of the lighting devices can can also be changed in a variety of ways.
  • This in Fig. 1 apparent housing 5 could, for example, only one single light source chamber with one or more lamps exhibit.
  • the housing can then possibly have some ventilation holes for heat dissipation To allow convection.
  • the housing can also, for example have lateral perforations to light radiate obliquely upwards against the ceiling.
  • the lighting device could be on the flat, horizontal surface of a ceiling attached and fastened Have housing or as a wall lamp for attachment be formed on a wall, as already mentioned has been.
  • Lighting devices can be made from the frame of the housing Profile bars from at least one sheet metal part or from one Casting are formed.
  • the lighting device a fluorescent lamp with an annular tube exhibit.
  • the light distributor arranged below this can then also form a circular ring.
  • This annular light distributors can, for example, be flat or in Cuts through the vertical, enclosed by the ring
  • the central axis must be curved so that the single-beam side or surface the main portion of the annular distributor element is concavely curved in axial cuts.
  • the lighting device at least one electrical Incandescent lamp and / or halogen lamp instead of at least one Have fluorescent lamp or in addition to such.
  • the boundary surfaces and / or hole ends of the Light transmission holes can be parallel to the hole axis
  • a regular polygon for example a 4-corner or 6-corner, form or oblong, and be more or less slit-shaped.
  • the hole axes can then possibly also be analogous to the distributor element 631 with the area having the hole in question the areal main section and / or with a horizontal plane form an angle deviating from 90 °.
  • only some of the light transmission holes could possibly be at least at the first and / or second hole end non-rotationally symmetrical with respect to the hole axis Outline shape and / or have a hole axis that with that of areal main section defined area of 90 ° form different angles.
  • the light distributors have lighting device shown in Figures 7 to 17 preferably no aperture corresponding to the aperture 35. You may even be able to use the diffusers of the light distributors omit so that the light distributor only has the distributor element 31 or 131 or 231.
  • one light distributor can run along several its length distributed distribution elements as well as possibly Have panels and diffusers. If there are panels , the or each aperture and the or each could Distribution element possibly with an adjusting device be slidable with respect to each other. The light transmission holes the aperture can then be used to cover approximately with the light transmission holes of the assigned distributor element brought or moved against these holes. This could be the one generated by the lighting device Illumination and brightness can be set.
  • the distributor elements and the panels for Example from originally no special reflective layer having sheet metal parts manufactured and only after the manufacture of light transmission holes and collars Polishing and / or steaming and / or the like with at least one light-reflecting reflection surface be provided.
  • the distribution elements and / or the panels even by injection molding from plastic produced and then by steaming with at least one Reflective layer are provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Endoscopes (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP01810441A 2000-05-10 2001-05-04 Distributeur de lumière pour un système d'éclairage, système d'éclairage et utilisation d' un système d'éclairage Expired - Lifetime EP1154200B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH9122000 2000-05-10
CH9122000 2000-05-10

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EP1154200A2 true EP1154200A2 (fr) 2001-11-14
EP1154200A3 EP1154200A3 (fr) 2002-10-16
EP1154200B1 EP1154200B1 (fr) 2007-10-24

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US (1) US6457844B2 (fr)
EP (1) EP1154200B1 (fr)
AT (1) ATE376648T1 (fr)
CA (1) CA2346744A1 (fr)
DE (1) DE50113159D1 (fr)

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EP1314928A1 (fr) 2001-11-23 2003-05-28 Regent Beleuchtungskörper AG Distributeur de lumière, dispositif d'éclairage avec au moins un distributeur de lumière et méthode de production d'un distributeur de lumière
DE202005019916U1 (de) * 2005-12-19 2007-04-19 Tobias Grau Gmbh Leuchte, insbesondere für Bildschirmarbeitsplatz
EP2071231A1 (fr) * 2007-12-13 2009-06-17 Nimbus Group GmbH Eclairage, en particulier éclairage d'intérieur
EP2145130A2 (fr) * 2007-04-10 2010-01-20 Ledalite Architectural Products, Inc. Appareil de commande lumineux présentant une répartition de l'intensité lumineuse en éventail dans les hémisphères supérieur et inférieur
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Publication number Priority date Publication date Assignee Title
EP1314928A1 (fr) 2001-11-23 2003-05-28 Regent Beleuchtungskörper AG Distributeur de lumière, dispositif d'éclairage avec au moins un distributeur de lumière et méthode de production d'un distributeur de lumière
DE202005019916U1 (de) * 2005-12-19 2007-04-19 Tobias Grau Gmbh Leuchte, insbesondere für Bildschirmarbeitsplatz
EP2145130A2 (fr) * 2007-04-10 2010-01-20 Ledalite Architectural Products, Inc. Appareil de commande lumineux présentant une répartition de l'intensité lumineuse en éventail dans les hémisphères supérieur et inférieur
EP2145130A4 (fr) * 2007-04-10 2013-07-17 Ledalite Architectural Products Inc Appareil de commande lumineux présentant une répartition de l'intensité lumineuse en éventail dans les hémisphères supérieur et inférieur
EP2071231A1 (fr) * 2007-12-13 2009-06-17 Nimbus Group GmbH Eclairage, en particulier éclairage d'intérieur
EP2546566A1 (fr) * 2010-03-12 2013-01-16 Sharp Kabushiki Kaisha Appareil d'éclairage
EP2546566A4 (fr) * 2010-03-12 2013-11-27 Sharp Kk Appareil d'éclairage

Also Published As

Publication number Publication date
US6457844B2 (en) 2002-10-01
DE50113159D1 (de) 2007-12-06
EP1154200B1 (fr) 2007-10-24
EP1154200A3 (fr) 2002-10-16
ATE376648T1 (de) 2007-11-15
CA2346744A1 (fr) 2001-11-10
US20010048599A1 (en) 2001-12-06

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