EP1314928B1 - Lichtverteiler, Leuchteinrichtung mit mindestens einem Lichtverteiler und Verfahren zur Herstellung eines Lichtverteilers - Google Patents
Lichtverteiler, Leuchteinrichtung mit mindestens einem Lichtverteiler und Verfahren zur Herstellung eines Lichtverteilers Download PDFInfo
- Publication number
- EP1314928B1 EP1314928B1 EP02405634A EP02405634A EP1314928B1 EP 1314928 B1 EP1314928 B1 EP 1314928B1 EP 02405634 A EP02405634 A EP 02405634A EP 02405634 A EP02405634 A EP 02405634A EP 1314928 B1 EP1314928 B1 EP 1314928B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- wall
- light distributor
- lamellae
- walls
- 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.)
- Expired - Lifetime
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 241000446313 Lamella Species 0.000 claims abstract description 46
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 2
- 239000011241 protective layer Substances 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 3
- 210000002414 leg Anatomy 0.000 description 75
- 210000000689 upper leg Anatomy 0.000 description 24
- 230000005540 biological transmission Effects 0.000 description 15
- 230000007704 transition Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007743 anodising Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
-
- 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, with two parallel strips, arranged between this, connected to this, across to this running lamella and between these existing Holes.
- Light distributors of this type are in practice also referred to as a mirror grid.
- An at least one such light distributor having Lighting device can, for example, from a lamp, such as a ceiling light fixed directly to the ceiling, a pendant, built-in, floor or wall lamp consist of having an artificial light source with at least an electric lamp, at least one straight, tubular and / or U-shaped fluorescent lamp has.
- the lighting device may possibly also as a light band lighting device be formed, which is a rail and at least one row along this successive one Lamps, for example, in turn, tubular and / or U-shaped fluorescent lamps.
- the Lighting device is in particular for use in a Room, about a large-space office, provided, in which At least one person works on a screen.
- Known light distributor of this type have two each one Longitudinal wall existing strips and a plurality of fins, each strip and each lamella being separate Sheet metal part exists.
- the strips have for each lamella at least one hole.
- Each slat has with each of the two Strip at least one attachment section that has a hole penetrates the strip in question and there by bending or latching is attached to the strip.
- These known Light distributors have the disadvantage that for everyone Light distributor made a large number of separate parts must become. Furthermore, however, slats must be provided on the Place between the two strips and then on be attached to the strip. The production of the strips and slats as well as assembling these to one Light distributor is therefore complicated and expensive.
- a light distributors are also with a planar, even or slightly curved main section known to have a number of round holes as well each of this one completely enclosing the hole, protruding, narrowing towards the light source collar having.
- These light distributors can be low in height be prepared and have already proven themselves well but the disadvantage that the area-like main section between the round holes and collar still relatively large has opaque areas. This reduces the proportion that of the lamp or lamps of the light source directly blasted through the holes of the light distributor Light at the total from the light source to the light distributor blasted light.
- the invention is based on the object, a light distributor to create the disadvantages of the known Light distributor corrects.
- the light distributor should in particular be economically producible and light passage openings have as much of the total area as possible the light passage openings portion of the Take light distributor, so that a large proportion of the the light source to this section of the light distributor radiated light through the light transmission openings can be blasted through.
- the invention further relates to a lighting device with at least one light distributor, wherein the lighting device according to the invention has the features of claim 11.
- the invention further relates to a method for Production of a light distributor, which according to the invention having the features of claim 12.
- the apparent in Figures 1 and 2 lighting device 1 consists of a lamp and has only a slightly simplified drawn housing 3, the holding means on a ceiling is held by a room of a building.
- the housing can, for example, directly on the surface of the ceiling abut and rigidly attached to this or with flexible Ropes, chains or the like at a distance from the ceiling be movably attached to this, or at least partially be sunk in a hole in the ceiling.
- the housing 3 is elongated and has, for example, a base 5 and four levels, approximately vertical walls, namely two end walls 6 and two extending in the longitudinal direction of the housing Sidewalls 7.
- the housing also has a deck reflector 8, which is connected to the lower edges of the two side walls 7 is as well as, for example, with the side walls together a single coherent, multiple angled Sheet metal piece exists and good on its lower side is light-reflecting and reflective.
- the housing 3 is in Essentially symmetrical with respect to one in one Longitudinal, vertical center plane 9th
- the housing 3 contains and holds at least one lamp socket 11, namely, for example, two opposing ones, arranged in the vicinity of the end walls 6, to this and / or on the base 5 mounted lamp sockets 11.
- Das Housing also contains an artificial, electrical light source 13 with an electric lamp 15, namely a tubular, straight, horizontal to the side walls 7 parallel, releasably held by the two lamp sockets 11 Fluorescent lamp whose straight, horizontal lamp axis 15a in the vertical center plane 9 below the lower Edges of the side walls 7 is located.
- the housing 3 contains and also holds an example electronic ballast 17th
- a light distributor 20 is on the lower side of the Housing 3 arranged and releasably attached to this.
- the Light distributor 20 is by a lamella mirror grid 21st educated.
- the light distributor 20 or lamellar mirror grid 21 consists of a single, coherent, so one-piece, multi-angled piece of sheet metal and is together with the lamp 15 also in Fig. 3 as well as in level, unwound state separately in Fig. 4 can be seen. Further are sections of the light distributor in FIGS. 5 and 6 seen.
- the light distributor 20 or lamellar mirror grid 21 has a central portion 21a and two on each other opposite sides of this running along this, lateral strips 21b.
- the middle section 21a and the two strips 21b are elongated and run parallel to the longitudinal direction of the housing 3 and to the lamp axis 15a.
- the central portion 21a has a number of fins 21c on, which is a straight, to the longitudinal directions of the housing. 3 and the lamp 15 form parallel lamella array.
- the individual lamellae 21c are transverse in plan, namely rectangular to the strips 21b. Not at one of the slats 21c located at both ends of the slat row are referred to below as inner fins.
- each This inner lamella has an inner, elongated bridge 21d and two legs 21e.
- Each inner bridge 21d hangs its two bridge ends with one of the 21b strips and at its two transverse and namely perpendicular to the slat row extending longitudinal or side edges with one of the legs 21e together.
- Located at the two ends of the slat row lamellae and their webs are referred to as End slats 21c and end webs 21f designated. Every end lamella For example, it has only one, with the end bridge 21f contiguous leg 21e.
- the end ribs 21f For example, have one in the longitudinal direction of Lamella series measured, larger dimension or width than the inner webs 21d and hang at their in the Direction of the slat series extending web ends also together with the strips 21b.
- Each leg 21e has two facing away from each other Leg margins that are contiguous with that associated with the thigh Stay 21d and 21f gone. Every thigh 21e also has a leg end edge located at the top, free end of the thigh that is with this Thigh-related web is turned away. The thigh end edge is straight and parallel to the longitudinal direction of the webs.
- thigh side wheels forming Main sections of these are in the unwound, even state of the light distributor 20 or lamellar mirror grid 21 forming piece of sheet metal away from the respective web inclined towards each other and, for example, according to FIG. 4 smooth as well as bent slightly convex, but could instead to be straight for the most part.
- At least some of the thighs 21e and, for example, each leg of each lamella points at its thigh side edges near the Leg end edge one each from the main section of the respective Side edge away on the side projecting attachment section 21h, namely a fastening tab 21h, on.
- Each strip 21b has one Side portion 21i, which is a two-layered side wall 21i forms and as also designated 21i, lateral Reflector serves.
- the legs 21e of the slats 21c and the Walls 21i protrude in more detail on the manner described same, namely upper side of the web level 22 away from this against the base 5 of the housing 3.
- Each of the two lateral Walls 21i has a first, outer wall portion 21k and a second inner wall portion 21m.
- the second wall section 21m of each of the two walls 21i extends from the second, upper Wall edge 21q away on the other, opposite wall facing side of the first wall portion 21k against the Webs 21d, 21f towards at least approximately the first, bottom wall edge 21p and is at least in places as well preferably substantially everywhere at least approximately on first wall portion 21k, so that the two Wall sections 21k, 21m an outer or inner layer of the Form wall.
- Each of the two wall sections 21k, 21m of Both walls 21i has for each leg 21e of each blade slit-shaped hole 21s.
- the holes 21s of the two to same wall belonging wall sections 21k, 21m are at least approximately in pairs aligned with each other.
- the two walls 21i are away from the webs 21d, 21f tilted towards each other and have for example in Vertical section two flat wall parts, approximately in the Height of the upper ends of the legs 21e or a little above these ends by a slightly angled and / or bent transition 21t are interconnected.
- Which Wall sections located above the transitions 21t are included upwards slightly more inclined to each other than the itself under the transitions 21t located wall parts and form So with the bridge level 22 a little smaller, more pointed Angle as the lower wall parts.
- the inner surfaces of the Transition 21t contiguous wall parts form accordingly an obtuse angle with each other. Incidentally, come across the walls 21i at their second upper wall edges 21q - at least approximately - to the edges of the housing main part.
- the cover reflector 8 has shown in FIG. 2 in Cross section three plane sections, namely a middle, Parallel to the web level 22, above the lamp 15th located reflector portion and both sides of this two lateral, inclined reflector sections.
- the two Side reflector sections are from the lower edges the side walls 7 and the second, upper wall edges 21q of the light distributor 20 away upwards a little more inclined towards each other, as the upper wall parts of the walls 21i.
- the lower surface of the deck reflector 8 and the inner, the other wall 21i facing surfaces as lateral reflectors serving walls 21i together a light-reflecting, reflecting surface, which in the in Fig. 2 apparent, vertical cross-section angled several times and more or less concave.
- FIG. 2 and 5 in particular is, are the first, lower edges 21p of the walls 21i practically immediately at the free ends of the webs 21d and in the longitudinal direction of the light distributor 20 and the Slat row of running edges of light passage openings 21g.
- the legs 21e of the lamellae 21c are with the smooth main sections of their margins at least approximately at the walls 21i.
- the attachment sections or attachment tabs 21h of the legs penetrate the in pairs approximately aligned holes 21s of Wall sections 21k, 21m and are on the outer, the angled away from remaining parts of the legs, so that they stick to the outer surfaces of the first, outer wall sections 21k of the walls 21i rest and the legs of the Firmly connect the slats to the walls.
- the slats So hang on the one hand at their lowest points to the Ends of their webs with the two strips 21b together and are also near the top of their thighs through the mounting portions or tabs 21h firmly the walls formed by side portions of the strips 21b 21i connected.
- the light distributor 20 or lamellar mirror grid 21 is for these reasons as well as because of the two-ply Forming of the walls 21i even at low sheet thickness of the sheet metal piece forming it rather stable and dimensionally stable.
- Each leg 21e of a blade 21c is generally from the associated web 21d or 21f away above to the lamella adjacent to it along the lamellae row inclined towards.
- the thighs are in the in the Figures 3 and 6 show vertical sections slightly so bent that the opposing surfaces of two thighs belonging to adjacent lamellae are concave and, for example, approximately parabolic.
- the two belonging to the same inner lamella 21c Legs 21e are accordingly from the web 21d of the respective Slat tilted away upwards away from each other.
- a light passage space 23 available between two adjacent legs 21e of two different, along the lamella series successive fins.
- This is in the in Fig. 2 apparent, vertical, transverse to the slat row Cross section bounded by the two walls 21i, at least approximately over the whole heights of the lamellae abut the leg side edges of the slats.
- everyone Light passage gap 23 thus forms in this Embodiment of the light distributor a in plan view and in horizontal sections more or less on all sides closed light passage and extends from the Light source 13 away down to the webs 21d, 21f out both in the in Fig. 2 apparent, vertically and transversely to the lamellar series extending cross-section and in the in Fig. 3 apparent, vertically and in the longitudinal direction the lamella series extending longitudinal section.
- the sheet thickness of the sheet metal piece forming the light distributor 20 or lamella mirror grid 21 is preferably at most 1 mm and, for example, approximately 0.3 mm to 0.5 mm.
- the dimension of the light passage openings 21g measured in the longitudinal direction of the light distributor 20 and the row of lamellae - that is, the distance between the opposing side edges of two adjacent bars 21d and 21d or 21d and 21f - is indicated by a in FIG.
- This dimension a can vary within wide limits and is typically at least 15 mm, at most 100 mm and, for example, 20 mm to 60 mm.
- the inner webs 21d have a dimension or width measured in the longitudinal direction of the light distributor 21 and the row of laminations, which is denoted by b in Figures 3 and 6.
- This dimension or width b of the inner webs is expediently at most 10 mm, preferably at most 8 mm, more preferably at most 6 mm, and preferably at least 1 mm, and for example 2 mm to 5 mm or 6 mm.
- the width b of the inner webs 21d is further suitably at most 25%, preferably at most 20%, more preferably at most 15%, and for example even at most only or at most approximately 10% of the dimension a of the light-transmitting apertures measured perpendicular to the slat-row, as shown in FIG. 2
- dimension of the light passage openings 21g denoted by c is preferably at least equal to the dimension a of the light transmission openings and for example 30% to 100% larger than the dimension a.
- the height h of the lamellae 21c measured perpendicularly to the ridge plane 22 or, more specifically, the leg 21e of the latter is, for example, 40% to 60% of the dimension a of the light passage openings 21g.
- the serving as lateral reflectors side portions 21 and side walls 21i have a measured perpendicularly to the web plane 22 height h 1 at least equal to the height h of the fins and is in fact greater than the height h, so that the lateral walls 21i and lateral reflectors protrude beyond the legs of the slats.
- the lower and upper edges of a leg 21e adjacent to a light passage space 23 together define a leg plane, shown in FIG. 6 and designated 24, and with the land plane 22 at an angle of, for example, about 70 ° to 80 ° forms.
- the light distributor 20 or lamella mirror grid 21 is with only schematically indicated in Fig. 1 fasteners 25 detachably connected to the housing 3.
- the fasteners for example, 25 may be permanently connected to the housing 3 or light distributor 20 connected fasteners have, which can snap into each other and / or detachable can be clamped together and / or as quick-release parts trained or possibly screwed together, so that the light distributor for replacing the lamp 15 from the Housing removed and can be attached to this again.
- the permanently fixed to the light distributor 20 connected Fasteners may be completely or partially off in the light distributor existing holes and / or with the Light distributor contiguous tabs or the like exist. If the light distributor is attached to the housing is it is also substantially symmetrical to the median plane 9.
- the housing may also be at each of its two ends with a likewise only schematically indicated in Fig. 1 End termination 26 may be provided, which the light distributor concludes at the ends.
- End termination 26 may be provided, which the light distributor concludes at the ends.
- the end walls 6, the reflector 8, the light distributor 20 and the end termination elements 26 limit together a light source chamber containing the light source 13, from the essentially only through the light passage spaces 23 of the light distributor 20 therethrough Light can be blasted into the environment and the otherwise reasonably opaque.
- a light distributor 20 or lamella mirror grid 21 becomes first a level, at least in Provided generally rectangular piece of sheet metal and the Example by punching with that shown in Fig. 4 Cut and slot-shaped holes provided. It will be in particular for each leg 21e of a lamella 21c two opposite leg side edges and a leg end edge formed or limited. The thigh end edges can thereby being formed by cuts without material removal, so that the legs of adjacent lamellae in the plane state of the light distributor or sheet metal piece more or less offensive to each other. In contrast, at the thigh side edges removed a little material, namely punched out so that there are approximately triangular holes and attachment portions 21h arise in the sheet metal piece.
- the slit-shaped holes 21s in the Punched sheet metal piece may eventually still provided in a flat state by embossing with grooves where it is subsequently angled and / or folded becomes.
- the wall sections 21k, 21m to form the two-ply walls 21i folded and the legs 21e of the Slats 21c and the strips 21b or walls 21i relative to the webs 21d, 21f angled.
- the attachment portions become or fastening tabs 21h in the in the Figures 2 and 5 dash-dotted drawn intermediate state when finished molding in Fig.
- the light distributor 20 or lamella mirror grid 21 is made for example, aluminum or an aluminum alloy.
- the forming the light distributor sheet metal piece has to Example on both sides a smooth and light-reflecting, reflective surface.
- One of these two surfaces can in the manufacture of the sheet metal piece by a special surface treatment - for example by Anodizing and coating of the anodized surface layer with a very thin, very well-transparent protective layer - particularly good light-reflecting and especially good be made mirroring.
- This specially treated, highly reflective Surface is then better light-reflecting as well as better reflective than the other surface of the piece of sheet metal.
- mirroring it is meant that light radiated on the surfaces according to reflected the optical mirror laws and not diffused back.
- the light distributor 20 is from an originally flat piece of sheet metal this shaped, i. angled and bent that the adjacent to the light passage spaces 23 Areas of the legs 21 d of the slats by sections of highly reflective or better light reflecting surface be formed of the piece of sheet metal.
- This highly reflective Surface then forms the lower surfaces of the Webs 21d, 21f, the outer surfaces of the first, outer Wall sections 21k and especially the inner, to the Light transmission gaps 23 adjacent surfaces of the second, inner wall sections 21m.
- the lamp 18 is located above the free upper edges or end edges of the legs 21e of the fins 21c at a small distance from these.
- the lamp axis 15a and at least the most part of the whole lamp 15 are located below the second, upper wall edges 21q the walls 21i of the light distributor 20.
- the lamp 15 facing, upper, free edges or end edges of the legs 21e of the slats define together a flat, rectangular Surface, which at their long sides through the walls 21i of the light distributor 20 limited and hereinafter as Lichteinstrahl page and / or light irradiation surface from the central portion 21a, of its slats and of the entire light distributor referred to as.
- the lamp 15 may further Light in approximately horizontal and / or against a horizontal plane slightly downwards inclined directions and upwards radiate, which then above the fins 21c of the inner Surfaces of the walls 21i and / or of the lower surface of the Deck reflectors 8 and / or possibly of the end walls. 6 and / or other reflectors and / or reflective surfaces of the housing down against the light inlet side of the Light distributor is reflected.
- a light passage space 23 and the light passage opening 21g through down out of the light distributor Blasted light forms an angle ⁇ with the web level.
- the light passage spaces expand from above below such that this angle ⁇ for all possible light rays at least 25 °. This can be done at approximately horizontal position of the web level 22 prevents that a person in which the lighting device 1 having Room works in a standard screen, by at most of the lighting device 1 against the screen blasted and reflected by this light blinded.
- the light distributor 20 thus provides a glare. Furthermore, a large part of the lamp generated by the lamp as well as directly or after at least one previous one Reflection against the light beam side of the middle section 21a and the fins 21c of radiated light therethrough through and down out of the light distributor.
- the somewhat simplified in Figures 7 and 8 apparent Lighting device 101 in turn has a housing 103 with a Base 105, two end walls 106, two side walls 107, one Reflector 108 and one in the longitudinal direction of the housing extending vertical center plane 109.
- the lighting device 101 also has two lamp sockets 111, a light source 113 with a tubular lamp 115, a ballast 117 and a fastening means, not shown releasably secured to the housing 103 light distributor 120th
- the light distributor 120 is again by a one-piece Slat mirror grid 121 is formed and has again a central portion 121a and two along its longitudinal sides extending strip 121b.
- the middle section 121a in turn has inner fins 121c inner webs 121d and two legs 121e and two End slats 121c with only one leg and a wider one End bridge 121f on.
- the legs 121e are shown in FIG. 9 however, they are for example analogous inclined as the legs 21e just.
- Between the lands 121d, 121f are light transmission openings 121g available.
- the strips 121b have a side portion 121i, the one up from the bridge level 122 away extending, lateral wall 121i forms.
- This one has one first, outer wall portion 121k, a second, inner Wall portion 121m, a first, lower wall edge 121p and a second, upper wall edge 121q and in turn serves as side reflector 121i.
- a narrow, strip-shaped Connecting portion 121r present in the same Level as the jetties and as part of the middle section 121a and / or viewed from one of the strips 121b can.
- the perpendicular to the longitudinal direction of the light distributor 120 and the lamella series measured width of the connecting sections 121r is preferably much smaller than that also measured at right angles to said longitudinal direction Dimension c of the light transmission openings 121g and is preferably at least 2 mm and preferably at most 10 mm.
- the two walls 121i of the light distributor 120 or Lamella mirror grids 121 project upwards over the legs 121e of the fins 121c and preferably also a little over the lamp 115 out, but are away from the webs up from each other and from the center plane 109 away to the outside inclined.
- the walls 121i are planar and form with the web level 122, for example, about 30 ° to 50 ° amounting angle.
- the thigh side edges of the thighs 121e of the fins 121c are, however, of the two walls 121i through free, upward-increasing interstices separated.
- the light transmission gaps 123 are therefore in light distribution 120 in plan no longer complete separated but hang between the leg margins the leg 121e and the walls 121i together.
- the Lamp 115 inter alia light without reflection at the light distributor 120 through its light transmission gaps 123, as indicated by the light rays 131 and 133 in Figures 8 and 9 is illustrated. Furthermore, can Light blasted through the light transmission gaps be doing this on at least one of the thighs 121e of the fins 121c is reflected. The lamp 115 can Furthermore, light against the inner surfaces of the walls 121i of the Lichtverteilers 120 radiate, which then reflects from them and how the light beam 132 in FIG. 8 is up against the Room ceiling is blasted, at the lighting device 121st is held. The ceiling can then at least a part this light more or less diffusely back down radiate.
- the lamp may even light directly between the lower edges of the side walls 107 of the housing and the second, upper wall edges 121q of the walls of the light distributor 120 slightly inclined upward into the environment the lighting device radiate.
- the light distributor 120 is in turn designed and dimensioned so that everything directly or under at least one reflection through him Light with the ridge level 122 an angle of at least 25 °. The farther is through the stripes 121b and the walls 121i formed by these, that no light emitted directly from the lamp 115 and none of the reflector 108 or any other reflective part the housing 103 and the entire lighting device 101 next is blasted down the center section 121a.
- Lighting device 201 has a housing not shown on, which is an electric light source 213 with a tubular Lamp 215 and a detachable light distributor 220 holds.
- the light distributor 220 is in this embodiment three originally separate, one-piece parts, namely sheet pieces, i. a louvre mirror grid 221 and two side members 227.
- the one-piece Lamella mirror grid 221 is also still separate in the Figures 13, 14 and 15 shown and in turn has a Central portion 221a and two strips 221b, of which each on one of the two long sides of the middle section is arranged.
- the middle portion 221a has a louver row with a number of fins 221c on.
- Every inner lamella 221c again has an inner land 221d and two Leg 221e, with the bridge again at its ends with one of the two strips 221b and at its transverse to the slat row extending longitudinal or side edges with the Thighs related.
- the width of the inner webs 221d may have similar values as indicated for webs 21d and in particular in relation to the other dimensions the lamella mirror grid 221 also be smaller than it is drawn in Figures 13 and 15.
- Each of the two at one of the ends of the slat row located end slat 221c has an end land 221f and, for example, only a leg 221e connected thereto.
- the Legs 221e of the fins 221c are generally similar Shapes such as the legs 21e and are particularly in the in Fig. 13, in the longitudinal direction of the slat row running cut, for example, similar bent as the legs 21e.
- the margins of the Thigh 221e more or less similar to the Thighs 21e at least for the most part still slightly above inclined towards each other and, for example, at least for mostly slightly curved convex.
- the legs have 221e Further, at their side edges each have a protruding mounting portion 221h, i. a fastening tab 221h.
- Each ridge 221b has one particularly clear in Fig. 12 apparent side portion 221i, angled with respect to the web level 222 and / or is bent and the same as the legs 221e of the slats 221c protrudes from the web level 222 upwards.
- the side sections 221i of the two strips 221b have plane main sections, the way up in the from the bridge level extending direction from each other and away from the slats are inclined to the outside.
- the perpendicular to the web level 222 from this measured height of the side portions 221i is much smaller than the corresponding measured height the leg of the slats.
- Each side section 221i limits along with the lowest areas of his facing Side edges of the legs 221e of the blades 221c a Series of part-spaces that together make one more or less groove-like and / or incision-like, in cross-section widening away from the web level 222, For example, form approximately V-shaped gap 221k.
- Each page element 227 has a main portion of the one lateral wall 227i and / or a side reflector 227i of the light distributor 220 forms.
- Each side member 227 also has an on the bottom edge of the lateral wall 227i subsequent holding section 227N. This one owns one from the lower edge of the wall 227i upwards angled and / or bent, to most of them are internal thighs 227p and one at the same adjoining upper edge, angled down again and / or bent outer legs 227r.
- each side member 227 protrude into the Gap 221k between the one side edges of the Leg 221e of the slats and arranged there Side portions 221i of the louvered mirror grid 221 in, so that each side member 227 the louvered mirror grid 221 in the relevant gap 221k touched.
- At least the largest parts fit into the Gaps 221k projecting portions of the walls 227i and Holding portions 227n of the side elements at least approximately free of play and fed into the spaces 221k.
- the lateral walls 227i protrude from the upper surfaces of the Strip 221b of the louvered mirror grid 221 away upward up to at least the height of the highest points of Legs 221e forming upper ends of the legs 221e of Slats 221c and namely over the upper ends of the legs out to at least in the tribalnbersich the lamp 215th Die Height is from the web level 222 from perpendicular to the web level 222 measured.
- the walls 227i of the side elements 227 have for each one of a fastening strap 221h existing Fixing portion 221h a slot-shaped hole 227s.
- the both side elements have at the upper edges of the walls 227i, for example, still angled outwards and / or bent edge sections 227t.
- each of the two side elements 227 from above into one of the Legs 221e of the blades 221c and one of the side sections 221i of the louvered mirror grid 221 limited groove-like spaces 221k used.
- the side elements 227 For example, they are somewhat springy, so they are on insertion in the groove-like spaces 221k of the lamella mirror grid 221 and when plugging the Mounting tabs 221h in the holes 227s temporarily can be elastically deformed and more or less engage.
- the side edges of the legs 221e of the slats 221c then at least approximately abut the walls 227i, where they touch them at least in places and preferably at least approximately along its entire length abut on these. Furthermore, the transition areas, which the lower ends of the walls 227i with the Connecting holding portions 227n, and the inner legs 227p of holding sections 227n at least in places and for example, for the most part on the strip 221b and the Side portions 227i formed by the outermost portions thereof at. Furthermore, the outer legs 227r surround the Holding portions 227n of the side members 227, the free edges the side portions 221i.
- the fastening tabs 221h after passing through holes 227s angled and / or bent, so they at least in places outside on the walls 227i rest.
- the figures 11 and 12 show the shapes of the fastening tabs the angling with dotted lines and after the Angling with full lines. If the attachment tabs Angled, they connect the walls 227i firmly with the Thighs of the slats 221. Thereby and by in the groove-like spaces 221k sitting parts of the Side elements 227, the whole page elements 227 firmly and stably connected to the louver mirror grid 221. Of the at the upper edges of the walls 227i existing, of these away outwardly projecting edge portion 227t of the side elements 227 may possibly for releasably connecting the light distributor 220 with the not shown holding the lamp 215 Housing serve.
- the two side elements 227 are again made of sheet metal pieces of aluminum or an aluminum alloy.
- the pieces of sheet metal for example, have again on both sides a smooth and light-reflecting, reflecting surface, where one of these surfaces is analogous as it is for the Lamella mirror grid 21 has been described by a special treatment highly reflective and better reflective when the other surface was made.
- the lower Surfaces of the lands 221d, 221f, and especially those at the light passage spaces 223 adjacent surfaces of the legs 221e of the slats of the lamella mirror grid 221 should then analogous to the lamellar mirror grids 21 and 121 highly reflective be.
- the two side elements 227 then at least that surface highly reflective, which the inner, each other and the slats facing surfaces the walls 227i forms. Because of the lamellar mirror grid 221 and the two side elements 227 originally Separate parts are made possible, the make inner surfaces of walls 227i highly reflective, although only one of the two surfaces of the pieces of sheet metal highly reflective is and although the walls are only one layer
- the lighting devices 101, 201 and their light distributor 120th or 220 may be similarly formed and similar properties have as the lighting device 1 and the light distributor 20th
- the lighting devices and their light distributor can to be modified in other ways. You can in particular Features of the lighting devices 1, 101, 201 and their Combine light distributor 20, 120, 220 with each other.
- the curved legs 21e and 221e of the louvre mirror grid 21, 221 could be replaced by thighs, for example are the same as the legs 121e of the louvre mirror grid 121 are just.
- the plane could Leg 121e bent by analogy as the legs 21e Thighs are replaced.
- a lighting device more than one lamp and / or more than one light distributor exhibit.
- the lighting device can also be used as a floor lamp with a stand or as a wall light for attachment be formed of a wall.
- the walls can 21i of the lamella mirror grid 21 or at least the second, inner wall portions 21m of these walls in addition to the angled and / or bent transition 21t in vertical cross sections still in other places such angled and / or bent that against each other Angled wall parts arise whose reflective Inner surfaces together form an obtuse angle.
- the walls 21i, 121i or at least the second, inner wall sections 21m, 121m in vertical cross sections at least partially continuous and smooth curved, concave, for example, approximately parabolic inner surfaces exhibit.
- the shapes of the side edges of the legs 221e of Louvers 221c and the cross-sectional shapes of the walls 227i For example, similar to the light distributor 20 be trained and modified.
- the Deck reflectors 8, 108, 208 at least partially so be bent that their lower reflecting surfaces in vertical cross sections at least partially continuous, smooth as well as concavely bent and, for example, approximately are parabolic.
- 2 apparent lighting device 1 both the cover reflector.
- the reflective inner surfaces of the walls 21i At least approximately smooth and steady to the lower surface connect the deck reflector 8 so that these surfaces together, for example, an approximately parabolic surface form.
- the lighting device 201 the same applies to the not shown deck reflector the lighting device 201.
- That of the lamps 15, 115, 215 of the light sources 13, 113, 213, directly or after at least one reflection by the Light transmission gaps 23, 123, 223 of the light distributor 20, 120, 220 transmitted part of the light can at all lighting devices 1, 101, 201 at least 30% and preferably at least about 40% of the total of the Be light sources 13, 113, 213 generated light.
- Both with reference to Figures 1 to 6 and 11 to 17 berian Lighting devices 1, 201 is the said part of Light even preferably at least 50% and for example at least or about 70% of the total of the light source 13 or 213 generated light or more.
- the light distributors may also be made of pieces of sheet metal are produced, in which both surfaces highly reflective as well as mirroring and especially the same are good light reflecting. Especially in this case can the second, inner wall portions 21m, 121m of the Walls 21i, 121i omitted and the latter single-layered be formed.
- 220 could one might at a part of the legs 21e, 221e of Slats omit the attachment portions 21h, 221h.
- the Attachment sections could also possibly with cuts be provided so that they have hook-like shapes and / or latched to the walls 21i and 227i, respectively could.
- the legs of the slats could be at their upper ends still have angled end sections, the from the light passage space adjacent to the respective leg directed away and for example about parallel or slightly inclined to the web level 22 and 122, respectively. These end portions of the legs can then be directly from the Lamp or by the reflector against them radiated light at least reflect in part so that it searches for more Reflections on the reflector and / or on the slats also still down through light transmission gaps is emitted from the light distributor.
- a could Light distributor may be two or more parallel mutually adjacent lamella rows between which one with the webs of the slats contiguous strip is present. Further could also located at the two ends of a slat row End slats two legs projecting from their bridge exhibit.
- the strips 221b and their side portions 221i for example, so be changed, that the groove-like spaces 221k a substantially planar, parallel to the web level 222 reason have as well as more or less U-shaped and / or trapezoidal are and still, for example, up easily expand.
- the exterior, down angled leg 227r through, for example, to the outside and / or above, possibly multiple angled and / or bent edge sections are replaced.
- the central portion 21a and / or 121a and / or 221a of the lamella mirror raster 21 or 121 or 221 are even changed so that the legs of the Fins away from the webs as well as away from the light source run down.
- the two legs having lamellae then the two legs belonging to the same lamella would become tilted away from the webs down to each other. Further would be the positions and shapes of the strips 21b, and 121b or 221b and the lateral walls with respect to the middle sections 21a, 121a as far as necessary to change.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Description
Claims (12)
- Lichtverteiler für eine Leuchteinrichtung (1, 101, 201), mit mindestens einer zwischen zwei zueinander parallelen Streifen (21b, 121b, 221b), angeordneten Lamellen-Reihe, die zwei je an einem Ende von ihr angeordnete End-Lamellen (21c, 121c, 221c) und zwischen diesen angeordnete, innere Lamellen (21c, 121c, 221c) aufweist, wobei die Streifen (21b, 121b, 221b) und Lamellen (21c, 121c, 221c) zusammen aus einem einzigen Blechstück bestehen, und wobei jede Lamelle (21c, 121c, 221c) einen mit den beiden Streifen (21b, 121b, 221b) zusammenhängenden Steg (21d, 21f, 121d, 121f, 221d, 221f) aufweist, dadurch gekennzeichnet, dass mindestens jede innere Lamelle (21c, 121c, 221c) zwei einander gegenüberstehende Schenkel (21e, 121e, 221e) hat, die mit dem Steg (21d, 121d, 221d) der betreffenden Lamelle (21c, 121c, 221c) zusammenhängen und vom Steg (21d, 121d, 221d) weg abgewinkelt und/oder abgebogen sind.
- Lichtverteiler nach Anspruch 1, dadurch gekennzeichnet, dass jede End-Lamelle (21c, 121c, 221c) mindestens einen mit ihrem Steg (21f, 121f, 221f) zusammenhängenden Schenkel (21c, 121c, 221c) hat, dass die Stege (21d, 21f, 121d, 121f, 221d, 221f) zusammen eine Steg-Ebene (22, 122, 222) definieren und dass alle Schenkel (21e, 121e, 221e) auf dieselbe Seite von dieser wegragen.
- Lichtverteiler nach Anspruch 2, dadurch gekennzeichnet, dass die beiden Streifen (21b, 121b, 221b) Seitenabschnitte (21i, 121i, 221i) aufweisen, die mit der Steg-Ebene (22, 122, 222) einen Winkel bilden und auf die gleiche Seite der Steg-Ebene (22, 122, 222) von den Stegen (21d, 21f, 121d, 121f, 221d, 221f) weg verlaufen wie die Schenkel (21e, 121e, 221e).
- Lichtverteiler nach Anspruch 3, dadurch gekennzeichnet, dass jeder Seitenabschnitt eine Wand (21i, 121i) mit einem ersten Wandabschnitt (21k, 121k) und einen zweiten Wandabschnitt (21m, 121m) bildet, dass der erste Wandabschnitt (21k, 121k) bei einem ersten Wandrand (21p, 121p) direkt oder über einen streifenförmigen Verbindungsabschnitt (121r) mit den Stegen (21d, 21f, 121d, 121f) und bei einem zweiten Wandrand (21q, 121q) mit dem zweiten Wandabschnitt (21m, 121m) zusammenhängt und dass die Wand (21i, 121i) beim zweiten Wandrand (21q, 121q) derart gefaltet ist, dass der zweite Wandabschnitt (21m, 121m) vom zweiten Wandrand (21a, 121a) auf der der anderen Wand (21i, 121i) zugewandten Seite des ersten Wandabschnitts (21k, 121k) gegen die Stege (21d, 21f, 121d, 121f) hin verläuft und vorzugsweise mindestens stellenweise mindestens annähernd am ersten Wandabschnitt (21k, 121k) anliegt.
- Lichtverteiler nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass zusätzlich zu dem die Streifen (221b) und Lamellen (221c) bildenden Blechstück noch zwei ursprünglich separate Seitenelemente (227) vorhanden sind, die entlang der Streifen (221b) verlaufen, je einen der Streifen (221b) berühren, fest mit dem die Streifen (221b) und Lamellen (221c) bildenden Blechstück verbunden sind und Wände (227i) bilden, die mit der Steg-Ebene (222) einen Winkel bilden und sich mindestens zum Teil auf der gleichen Seite der Steg-Ebene (222) befinden wie die Schenkel (221e) der Lamellen (221c), wobei jedes Seitenelement (227) vorzugsweise aus einem Blechstück besteht.
- Lichtverteiler nach den Ansprüchen 3 und 5, dadurch gekennzeichnet, dass jedes Seitenelement (227) einen Halteabschnitt (227n) hat, der von der Wand (227i), die von diesem Seitenelement (227) gebildet ist, weg abgewinkelt und/oder abgebogen ist und mindestens stellenweise am Seitenabschnitt (221i) von einem der Streifen (221b) anliegt.
- Lichtverteiler nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass die entlang der bzw. einer Lamellen-Reihe aufeinander folgenden, zu verschiedenen Lamellen (21c, 121c, 221c) gehörenden Schenkel (21e, 121e, 221e) einander zugewandte, lichtreflektierende Flächen haben und dass die Wände (21i, 121i, 227i) einander und den Schenkeln (21e, 121e, 227e) der Lamellen (21c, 121c, 221c) zugewandte, lichtreflektierende Flächen haben, wobei diese lichtreflektierenden Flächen der Schenkel (21e, 121e, 221e) und Wände (21i, 121i, 221i) vorzugsweise glatt sowie spiegelnd und beispielsweise mit einer lichtdurchlässigen Schutzschicht versehen sind und wobei die Wände (21i, 121i, 221i) vorzugsweise in eine von der Steg-Ebene (22, 122, 222) aus senkrecht zu dieser gemessene Höhe ragen, die sich mindestens in der entsprechend gemessenen Höhe der höchsten Stelle der Schenkel (21e, 121e, 221e) der Lamellen (21c, 121c, 221c) und beispielsweise oberhalb der höchsten Stelle der Schenkel (21e, 121e, 221e) der Lamellen (21c, 121c, 221c) befindet.
- Lichtverteiler nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass jeder Schenkel (21e, 221e) zwei einander abgewandte Schenkel-Seitenränder hat, die von dem mit diesem Schenkel (21e,221e) zusammenhängenden Steg (21d, 21f, 221d, 221f) weg verlaufen und dass mindestens einige der Schenkel (21e, 221e) bei ihren Schenkel-Seitenrändern einen Befestigungsabschnitt (21h, 221h) aufweisen, der ein Loch (21s, 227s) von einer der Wände (21i, 227i) durchdringt und den Schenkel (21e, 221e) fest mit der betreffenden Wand (21i, 227i) verbindet, wobei jeder Befestigungsabschnitt (21h, 221h) zum Beispiel auf der dem restlichen Teil des Schenkels (21e, 221e) abgewandten Seite der Wand (21i, 227i) abgewinkelt und/oder abgebogen oder mit der Wand (21i, 227i) verrastet ist.
- Lichtverteiler nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die zwei mit demselben Steg (21d, 121d, 221d) zusammenhängenden Schenkel (21e, 121e, 221e) von diesem Steg (21d, 121d, 221d) weg voneinander weg oder eventuell zueinander hin geneigt sind.
- Lichtverteiler und einer der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass er derart ausgebildet und dimensioniert ist, dass alles von einer Lichteinstrahl-Seite her durch ihn hindurch gestrahlte Licht mit einer von seinen Stegen (21d, 21f, 121d, 121f, 221d, 221f) definierten Steg-Ebene (22, 122, 222) einen Winkel (α) von mindestens 25° bildet.
- Leuchteinrichtung mit mindestens einem Lichtverteiler (20, 120, 220) nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass sie mindestens eine Lampenfassung (11, 111) aufweist, um mindestens eine elektrische Lampe (15, 115, 215) einer Lichtquelle (13, 113, 213) derart zu halten, dass die Lichtquelle (13, 113, 213) beim Betrieb Licht durch den Lichtverteiler (20, 120, 220) strahlt.
- Verfahren zur Herstellung eines Lichtverteilers nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass ein ebenes Blechstück mit Schnitten und/oder Löchern versehen wird, um für jeden Schenkel (21e, 121e, 221e) zwei einander abgewandte Schenkel-Seitenränder und einen Schenkel-Endrand zu begrenzen, und dass die dadurch begrenzten Schenkel (21e, 121e, 221e) relativ zu den Stegen (21d, 21f, 121d, 121f, 221d, 221f) abgewinkelt werden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH21602001 | 2001-11-23 | ||
| CH21602001 | 2001-11-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1314928A1 EP1314928A1 (de) | 2003-05-28 |
| EP1314928B1 true EP1314928B1 (de) | 2005-10-12 |
Family
ID=4567761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02405634A Expired - Lifetime EP1314928B1 (de) | 2001-11-23 | 2002-07-22 | Lichtverteiler, Leuchteinrichtung mit mindestens einem Lichtverteiler und Verfahren zur Herstellung eines Lichtverteilers |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6764199B2 (de) |
| EP (1) | EP1314928B1 (de) |
| AT (1) | ATE306638T1 (de) |
| CA (1) | CA2412280A1 (de) |
| DE (1) | DE50204514D1 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1003634B (el) * | 2000-10-26 | 2001-07-30 | Pilux & Danpex Ae | Παραβολικο φωτιστικο φθορισμου ψευδοροφης και οροφης |
| US6841790B1 (en) * | 2003-10-07 | 2005-01-11 | Miltec Corporation | Snap-in radio frequency screen for ultraviolet lamp system |
| US7556402B2 (en) * | 2004-03-29 | 2009-07-07 | Cooper Technologies Company | Direct-indirect luminaire with shutter |
| US7229191B1 (en) * | 2004-06-07 | 2007-06-12 | Genlyte Thomas Group Llc | Industrial up light reflector |
| US20060098444A1 (en) * | 2004-08-17 | 2006-05-11 | Anthony Petruzzi | Lighting system |
| WO2008059404A1 (en) * | 2006-11-13 | 2008-05-22 | Koninklijke Philips Electronics N.V. | Luminaire for inspecting the surface quality of an object |
| US8322881B1 (en) | 2007-12-21 | 2012-12-04 | Appalachian Lighting Systems, Inc. | Lighting fixture |
| WO2010017654A1 (zh) * | 2008-08-12 | 2010-02-18 | She Jie | 护眼格栅灯 |
| USD597248S1 (en) * | 2008-09-25 | 2009-07-28 | Bank Of America Corporation | Light fixture |
| USD601297S1 (en) * | 2008-09-25 | 2009-09-29 | Bank Of America Corporation | Light fixture |
| CN201407599Y (zh) * | 2009-04-24 | 2010-02-17 | 富昱电机股份有限公司 | 灯管灯具 |
| IT1398590B1 (it) * | 2010-02-24 | 2013-03-01 | Beghelli Spa | Dispositivo di regolazione luminosa per apparecchi di illuminazione pubblica |
| US9061358B2 (en) * | 2012-05-29 | 2015-06-23 | Apple Inc. | Methods for cutting smooth reflective surfaces |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2747859B2 (ja) * | 1992-03-16 | 1998-05-06 | 明治ナショナル工業株式会社 | 照明器具用バッフルの製造方法 |
| JP3879153B2 (ja) * | 1996-10-21 | 2007-02-07 | 松下電工株式会社 | 照明器具用ルーバ |
| AU3974299A (en) * | 1998-05-08 | 1999-11-29 | Nsi Enterprises, Inc. | Luminaire having baffles with observable visual accent |
| EP1154200B1 (de) | 2000-05-10 | 2007-10-24 | Regent Beleuchtungskörper AG | Lichtverteiler für eine Leuchteinrichtung sowie Leuchteinrichtung und Verwendung einer Leuchteinrichtung |
-
2002
- 2002-07-22 EP EP02405634A patent/EP1314928B1/de not_active Expired - Lifetime
- 2002-07-22 AT AT02405634T patent/ATE306638T1/de not_active IP Right Cessation
- 2002-07-22 DE DE50204514T patent/DE50204514D1/de not_active Expired - Fee Related
- 2002-11-07 US US10/289,381 patent/US6764199B2/en not_active Expired - Fee Related
- 2002-11-21 CA CA002412280A patent/CA2412280A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE50204514D1 (de) | 2005-11-17 |
| US6764199B2 (en) | 2004-07-20 |
| ATE306638T1 (de) | 2005-10-15 |
| US20030099107A1 (en) | 2003-05-29 |
| EP1314928A1 (de) | 2003-05-28 |
| CA2412280A1 (en) | 2003-05-23 |
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