EP1314928A1 - 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
- EP1314928A1 EP1314928A1 EP02405634A EP02405634A EP1314928A1 EP 1314928 A1 EP1314928 A1 EP 1314928A1 EP 02405634 A EP02405634 A EP 02405634A EP 02405634 A EP02405634 A EP 02405634A EP 1314928 A1 EP1314928 A1 EP 1314928A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- wall
- legs
- light distributor
- web
- 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
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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
- 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
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- 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 mutually parallel strips, arranged between, connected to, transverse to this running slats and between these existing Holes.
- Light distributors of this type are used in practice and also called a mirror grid.
- Lighting device can for example be from a lamp, such as a ceiling lamp directly attached to the ceiling, a pendant, recessed, floor or wall lamp consist of an artificial light source with at least an electric lamp, such as at least one straight one, has tubular and / or U-shaped fluorescent lamp.
- the lighting device can possibly also be used as a light band lighting device be trained that a rail and at least one row along from this successive Has lamps, for example, in turn from tubular and / or U-shaped fluorescent lamps.
- the Lighting device is particularly for use in one Space, such as an open plan office, in which at least one person is working on a screen.
- Known light distributors of this type have two each Longitudinal wall consisting of strips and a large number of slats, each strip and each slat from a separate one Sheet metal part exists.
- the strips have for each slat at least one hole.
- Each slat has on each of the two Strip at least one fastening section that is a hole of the strip in question and there by angling or snap is attached to the strip.
- EP 1 154 200 A also includes light distributors a flat, flat or slightly curved main section known to have a number of round holes as well each of these completely enclosing the hole, protruding collar narrowing towards the light source having.
- These light distributors can be of a low height are manufactured and have already proven themselves well however, the disadvantage that the areal main section still relatively large between the round holes and collar has opaque areas. This reduces the proportion from the lamp or lamps of the light source directly radiated through the holes of the light distributor Total light from the light source to the light distributor radiated light.
- the invention has for its object a light distributor to create the disadvantages of the known Fixes the light distributor.
- the light distributor should in particular be economical to manufacture and light transmission openings have the largest possible part of the total area of the portion of the light transmission openings 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 at least one light distributor, the lighting device according to the invention has the features of claim 11.
- the invention further relates to a method for Manufacture of a light distributor according to the invention has the features of claim 12.
- the lighting device shown in Figures 1 and 2 1 consists of a lamp and has only simplified a little drawn housing 3, with 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 fit and rigidly attached to it or with flexible Ropes, chains or the like at a distance from the ceiling be movably suspended from it, 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 flat, approximately vertical walls, namely two end walls 6 and two in the longitudinal direction of the housing Side walls 7.
- the housing also has a deck reflector 8, which is connected to the lower edges of the two side walls 7 and together with the side walls, for example a single coherent, multi-angled Sheet piece exists and is good on its lower side is light reflecting and reflecting.
- the housing 3 is in Essentially symmetrical with respect to one in one Longitudinal vertical median plane 9.
- the housing 3 contains and holds at least one lamp holder 11, namely, for example, two facing each other, arranged in the vicinity of the end walls 6, on these and / or lamp sockets attached to the base 5 Housing also contains an artificial, electrical light source 13 with an electric lamp 15, namely one tubular, straight, horizontal to the side walls 7 parallel, releasably held by the two lamp sockets 11 Fluorescent lamp, the straight, horizontal lamp axis 15a in the vertical center plane 9 below the lower one Edges of the side walls 7 lies.
- the housing 3 contains and also holds an electronic ballast, for example 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 through a louvre mirror grid 21 educated.
- the light distributor 20 or louvre mirror grid 21 consists of a single, contiguous, ie one-piece, multi-angled piece of sheet metal and is together with the lamp 15 also in FIG. 3 and in a flat, developed state can be seen separately in Fig. 4. Further are sections of the light distributor in Figures 5 and 6 seen.
- the light distributor 20 or louvre mirror grid 21 has a central section 21a and two on top of each other opposite sides of this along this, side 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 the lamp axis 15a.
- the middle section 21a has a number of lamellae 21c on a straight, to the longitudinal directions of the housing 3rd and the lamp 15 form parallel row of lamellae.
- the individual slats 21c are transverse in plan, namely rectangular to strips 21b. Who are not interested in one of the slats 21c located at both ends of the row of slats are referred to below as inner slats. each this inner lamella has an inner, elongated web 21d and two legs 21e.
- Each inner web 21d is attached its two web ends with one of the strips 21b and his two across and namely perpendicular to the row of slats running longitudinal or side edges with one of the legs 21e together.
- Each end slat has, for example, only one, with the end web 21f connected leg 21e.
- the end webs 21f have, for example, one in the longitudinal device of the Slat row measured, larger dimension or width than the inner webs 21d and hang in their in the Web ends extending in the direction of the row of slats also together with the strips 21b.
- Each leg 21f has two facing away from each other Thigh side margins that are related to that of the thigh Run web 21d or 21f away. Every thigh 21e also has a leg end edge which is located on the upper, free end of the leg is the that with this Thigh connected web is facing away. The end of the thigh is straight and parallel to the longitudinal direction of the webs.
- the largest part of the side edges of the legs Main sections of these are in the developed, flat state of the light distributor 20 or lamella mirror grid 21 sheet metal piece away from the web in question inclined towards each other and smooth, for example according to FIG.
- each leg of each lamella points at its side margins near the Leg end margin one each from the main section of the concerned Side edge away to the side protruding fastening section 21h, namely a fastening tab 21h.
- Each strip 21b has one Side portion 21i, which is a two-layer side wall 21i forms and as also designated with 21i, laterally Serves as a reflector.
- the legs 21e of the slats 21c and Walls 21i protrude in a manner described in more detail same, namely the upper side of the web level 22 away from this against the base 5 of the housing 3.
- Each of the two side Walls 21i has a first, outer wall section 21k and a second inner wall section 21m.
- first, outer wall section 21k at a first, lower Wall edge 21p over angled, edge-like and / or bent connecting sections with one end of the inner webs 21d and end webs 21f together. It also hangs each first, outer wall section 21k at a second, upper wall edge 21q over a fold with the second, inner Wall section 21m together.
- the second wall section 21m from 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 section 21k against the Webs 21d, 21f up to at least approximately to the first, lower wall edge 21p and lies at least in places as well preferably essentially everywhere at least approximately on first wall section 21k so that the two Wall sections 21k, 21m an outer or inner position of the Form wall.
- Each of the two wall sections 21k, 21m has two walls 21i for each leg 21e each lamella slit-shaped hole 21s. The holes 21s of the two for same wall sections 21k, 21m aligned at least approximately in pairs.
- the two walls 21i are away from the webs 21d, 21f inclined upwards towards each other and, for example, in Vertical section of 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 There are wall parts located above the transitions 21t inclined towards each other more strongly than that and form wall parts located under the transitions 21t So with the web level 22 a slightly smaller, more pointed one Angle than the lower wall parts.
- the inner surfaces of the at Transition 21t form contiguous wall parts accordingly an obtuse angle with each other.
- the deck reflector 8 has in accordance with FIG Cross section of three flat sections, namely a central one parallel to the web plane 22, above the lamp 15 located reflector section and on both sides of this two lateral, inclined reflector sections.
- the two side reflector sections are from the bottom edges the side walls 7 and the second, upper wall edges 21q the light distributor 20 away a little more upwards inclined towards each other than the upper wall parts of the walls 21i.
- the lower surface of the deck reflector 8 and the inner, the respective other wall 21i facing surfaces as Walls 21i serving as lateral reflectors form together a light reflecting, reflecting surface, which in the Fig. 2 apparent, vertical cross section angled several times and is more or less concave.
- FIGS. 2 and 5 in particular is the first, lower edges 21p of the walls 21i practically directly at the free ends of the webs 21d and in the longitudinal direction of the light distributor 20 and the Row of slats running edges of the light passage openings 21g.
- the legs 21e of the slats 21c lie with the smooth main sections of their side edges at least approximately on the walls 21i.
- the mounting sections or fastening tabs 21h of the legs penetrate the in pairs approximately aligned holes 21s of the Wall sections 21k, 21m and are on the outer one remaining parts of the side facing away from the leg, so that they are on the outer surfaces of the first, outer wall sections 21k of the walls 21i and the legs of the Connect the slats to the walls there.
- the slats hang on the one hand at their lowest positions on the Ends of their webs together with the two strips 21b and are also near the top of her thighs through the fastening sections or tabs 21h the walls formed by side portions of the strips 21b 21i connected.
- the light distributor 20 or louvre mirror grid 21 is for these reasons as well as because of the two-ply Formation of the walls 21i even with a small sheet thickness of the piece of sheet metal making it quite stable and dimensionally stable.
- Each leg 21e of a slat 21k is generally away from the web 21d or 21f connected to it above to the slat adjacent to it along the row of slats inclined towards.
- the legs are in the Figures 3 and 6 visible vertical sections easily such bent that the opposing faces of two legs belonging to adjacent slats are concave and, for example, approximately parabolic.
- the two belonging to one and the same inner lamella 21c Legs 21e are accordingly from the web 21d of the relevant one Slat tilted upwards away from each other.
- 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 - ie the distance of the mutually opposing side edges from two adjacent webs 21d and 21d or 21d and 21f - is denoted by a in FIG. 3.
- 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 lamellae, which is denoted by b in FIGS. 3 and 6.
- This dimension or width b of the inner webs is expediently at most 10 mm, preferably at most 8 mm, better 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 also expediently at most 25%, preferably at most 20%, better at most 15% and for example even only at most or approximately 10% of the dimension a of the light transmission openings.
- the height h, measured perpendicular to the web plane 22, of the slats 21c or, more precisely, the leg 21e of the latter is, for example, 40% to 60% of the dimension a of the light transmission openings 21g.
- the side sections 21 or side walls 21i serving as lateral reflectors have a height h 1 measured perpendicular to the web plane 22, which is at least equal to the height h of the slats and namely greater than the height h, so that the side walls 21i or side reflectors protrude beyond the legs of the slats.
- the lower and upper edge of a leg 21e adjoining a light transmission gap 23 together define a leg plane, which is shown in FIG. 6 and is designated by 24, and an angle of, for example, approximately 70 ° to 80 ° with the web plane 22 forms.
- the light distributor 20 or lamella mirror grid 21 is with fastening means indicated only schematically in FIG. 1 25 releasably connected to the housing 3.
- the fasteners 25 can, for example, continuously with the housing 3 or light distributor 20 connected fasteners have that can snap into each other and / or releasably 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 quickly from Housing can be removed and reattached to it.
- the permanently firmly connected to the light distributor 20 Fasteners can be made entirely or partially holes in the light distributor and / or with the Light distributor related tabs or the like exist. When the light distributor is attached to the housing, is it is also essentially symmetrical to the central plane 9.
- the housing may also be at either of its two ends with one also only indicated schematically in FIG. 1 End termination element 26 may be provided that the light distributor closes at the ends.
- End termination element 26 may be provided that the light distributor closes 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 transmission gaps 23 of the light distributor 20 through Light can be shone into the environment and that otherwise is somewhat opaque.
- a light distributor 20 or lamella mirror grid 21 is first a flat, at least in Generally rectangular sheet metal piece provided and for Example by punching with those shown in Fig. 4 Cuts and slit-shaped holes. In doing so in particular for each leg 21e of a slat 21c two mutually facing leg side edges and a leg end edge formed or limited. The leg end edges can are formed by cuts without material removal, so that the legs of adjacent slats in the flat condition of the light distributor or piece of sheet metal more or toast less. This contrasts with the side margins removed a little material, namely punched out so that there are approximately triangular holes and fastening sections 21h arise in the sheet metal piece.
- the slit-shaped holes 21s in the Stamped piece of sheet metal can possibly Grooved in flat condition by embossing in which it is subsequently angled and / or folded becomes.
- the wall sections 21k, 21m to form the two-layer 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 sections or mounting tabs 21h in the Figures 2 and 5 dash-dotted intermediate state in the final molding of the dot-dash line in FIG. 2 in an intermediate position drawn walls 21i in the slot-shaped holes 21s of the walls are inserted.
- the fastening sections or tabs 21h are angled, so that they are in the full lines in Figures 2 and 5, also shown in FIGS. 1, 3 and 6 Layers in which they reach the outer surfaces of the walls.
- the light distributor 20 can on this Economical with little time and effort be made from a single piece of sheet metal.
- the light distributor 20 or lamella mirror grid 21 is made for example made of aluminum or an aluminum alloy.
- the piece of sheet metal forming the light distributor has 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 Anodize and coat the anodized surface layer with a very thin, very translucent protective layer - particularly good light reflecting and particularly good be made reflective. This specially treated, highly reflective The surface is then better light reflecting as well as more reflective than the other surface of the piece of sheet metal.
- Reflective what is meant is that light radiated onto the surfaces according to reflected the optical mirror laws and not is diffusely reflected.
- the light distributor 20 When forming the light distributor 20 becomes an originally flat piece of sheet metal shaped this way, i.e. angled and bent that those adjacent to the light passage gaps 23 Surfaces of the legs 21d of the slats through sections of the highly reflective or better light reflecting surface of the piece of sheet metal are formed. This highly reflective The surface then also forms the lower surfaces of the Ridges 21d, 21f, the outer surfaces of the first, outer Wall sections 21k and especially the inner ones to which Translucent spaces 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 slats 21c at a small distance from them.
- the lamp axis 15a and at least most of the whole lamp 15 are located below the second, upper wall edges 21q of the walls 21i of the light distributor 20.
- Those facing the lamp 15, upper, free edges or end edges of the legs 21e of the slats together define a flat, rectangular Area that is on its long sides through the walls 21i of the light distributor 20 limited and in the following as the light beam side and / or light irradiation area from the central section 21a, of its slats and of the whole light distributor referred to as.
- the light transmission openings 21g thus form the light exit openings of the light distributor.
- Figures 2 and 3 there are two Rays of light from direct - i.e. without reflection on anything a surface of the light distributor 20 - through the light distributor light shone through and shown at 31 and 33 respectively designated.
- the lamp 15 can also Light in approximately horizontal and / or against a horizontal plane slightly downward sloping directions and upward blast that then above the fins 21c from the inside Surfaces of walls 21i and / or from the lower surface of the Deck reflector 8 and / or possibly from the end walls 6 and / or other reflectors and / or reflecting surfaces the housing down against the light inlet side of the Light distributor is reflected.
- a light transmission gap 23 and the light transmission opening 21g down out of the light distributor radiated light forms an angle ⁇ with the web plane.
- the light transmission spaces widen from top to bottom below such that this angle ⁇ for all possible light rays is at least 25 °.
- This can help at around horizontal position of the web plane 22 can be prevented a person in which the lighting device 1 Room works on a screen set up in the usual way, by against the lighting device 1 at most light radiated from the screen and reflected by it is blinded.
- the light distributor 20 thus results in glare control. Furthermore, a large part of that produced by the lamp as well as directly or after at least one previous one Reflection against the light beam side of the midsection 21a and the slats 21c radiated light through this radiated through and below from the light distributor.
- 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 vertical vertical plane 109.
- the lighting device 101 also has two lamp holders 111, a light source 113 with a tubular lamp 115, a ballast 117 and one with fasteners, not shown Light distributor 120 detachably attached to housing 103.
- the light distributor 120 is again in one piece Lamella mirror grid 121 formed and has again a middle section 121a and two along stripes 121b extending along its long sides.
- the middle section 121a again has inner fins 121c inner webs 121d and two legs 121e and two End blades 121c with only one leg and a wider one End web 121f.
- the legs 121e are according to FIG. 9 similarly inclined as the legs 21e, but are for example just.
- the bridges or - more precisely said - the lower surfaces of these define a web level 122.
- the strips 121b have a side section 121i, the one up from the web level 122 running, lateral wall 121i forms.
- This has one first, outer wall section 121k, a second, inner Wall section 121m, a first, lower wall edge 121p and a second, upper wall edge 121q and in turn serves as side reflector 121i.
- each wall 121i and the web ends opposite this wall edge Web 121d, 121f and in the longitudinal direction of the Light distributor and the slat row extending edges of the light transmission openings 121g is a narrow, stripe-shaped Connection section 121r is present in the same Level as the ridges 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 slat row measured width of the connecting sections 121r is preferably much smaller than that also measured perpendicular to the longitudinal direction mentioned 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 grid 121 protrude upward over the legs 121e of the slats 121c and preferably also a little over the lamp 115 out, but are away from the webs away from each other and from the central plane 109 inclined.
- the walls 121i are flat and form with the web plane 122, for example, approximately 30 ° to 50 ° absolute angle.
- the thigh side edges of the thighs 121e of the slats 121c are from the two walls 121i, however due to free spaces that increase in size upwards Cut.
- the light transmission gaps 123 are therefore the light distribution 120 in the floor plan is no longer complete separated from each other, but hang between the side edges of the legs leg 121e and walls 121i together.
- a flat, rectangular sheet metal piece formed with the in Fig. 10 visible cuts and holes and then angled.
- the Lamp 115 among other things light without reflection on the light distributor 120 shine through the light transmission gaps 123, as reflected by light rays 131 and 133 in Figures 8 and 9 is illustrated. Furthermore, Light shines through the light transmission spaces be on at least one of the legs 121e of the slats 121c is reflected. The lamp 115 can further light against the inner surfaces of the walls 121i of the Light distributor 120 radiate, which then reflects from these and how the light beam 132 in Fig. 8 up against the Ceiling is blasted on which the lighting device 121 is held. The ceiling can then have at least part of this light more or less diffuse down again radiate.
- the lamp may even be able to direct light 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 upwards into the environment of the lighting device shine.
- the light distributor 120 is in turn designed and dimensioned so that everything radiated directly or under at least one reflection through it Light with the web plane 122 an angle of forms at least 25 °. Furthermore, through the stripes 121b and the walls 121i formed by them, that no light emitted directly from the lamp 115 and none from reflector 108 or any other reflective part of the housing 103 and the entire lighting device 101 in addition is blasted downward past the central portion 121a.
- Lighting device 201 has a housing, not shown on, which is an electric light source 213 with a tubular Lamp 215 and a removable light distributor 220 holds.
- the light distributor 220 is in this embodiment from three originally separate, one-piece parts, namely pieces of sheet metal, i.e. a louvre mirror grid 221 and two side elements 227 are put together.
- the one-piece Louvre mirror grid 221 is also separately in the Figures 13, 14 and 15 shown and in turn has one Middle section 221a and two strips 221b, of which each on one of the two long sides of the middle section is arranged.
- the middle section 221a has a row of fins with a number of slats 221c.
- Every inner slat 221c in turn has an inner web 221d and two Leg 221e, the web again at its ends with one of the two strips 221b and in its transverse to the row of slats running longitudinal or side edges with the Thigh connected.
- the width of the inner webs 221d can have values similar to those given for the webs 21d was and especially in relation to the other dimensions of the louvre mirror grid 221 can also be smaller than it is drawn in Figures 13 and 15.
- Each of the two end slat located at one of the ends of the row of slats 221c has an end web 221f and for example only an associated leg 221e.
- the Legs 221e of fins 221c are generally similar Shapes like the legs 21e and are particularly in the in Fig. 13 shown in the longitudinal direction of the row of slats running cut, for example, bent similar to the legs 21e.
- the side edges are the Leg 221e more or less similar to that of the Thighs 21e at least for the most part still slightly above inclined towards each other and for example at least to mostly slightly convex.
- the legs have 221e also at their side edges each have a protruding mounting section 221h, i.e. a mounting bracket 221h.
- Each strip 221b has one particularly clearly shown in Fig. 12 side portion 221i, which is angled with respect to the web plane 222 and / or is bent and the same as the legs 221e of the slats 221c protrudes upward from the web level 222.
- the side sections 221i of the two strips 221b have flat main sections, those in the up from the jetty level direction from each other and away from the slats are inclined outwards.
- the perpendicular to the web plane 222 from this is the measured height of the side portions 221i thereby much smaller than the correspondingly measured height the leg of the slats.
- Each side section 221i bounds along with the lowest areas of it facing Side edges of the legs 221e of the slats 221c one Series of partial spaces that together form a more or less groove-like and / or notch-like, in cross-section expanding upwards from the web level 222, for example, form approximately V-shaped space 221k.
- Each side element 227 has 227 a major portion of a side wall 227i and / or a side reflector 227i of the light distributor 220 forms.
- Each side member 227 also has one at the lower edge of the holding section adjoining the side wall 227i 227N. This has one from the lower edge of the wall 227i angled up and / or bent away to the most of the inner legs 227p and one on the other adjoining the upper edge, again angled downwards 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 those arranged there Side portions 221i of the louvre mirror grid 221 into it so that each side member 227 has the louvre mirror grid 221 touched in the relevant space 221k. At least the largest parts of the fit into the Intervals 221k projecting areas of the walls 227i and Holding portions 227n of the side elements at least approximately without play and full into the spaces 221k.
- the side walls 227i protrude from the top surfaces of the Strip 221b of the louvre mirror grid 221 away upwards up to at least the height of the highest digits of the Legs 221e forming upper ends of the legs 221e Slats 221c and namely over the upper ends of the legs out to at least in the height range of the lamp 215. Die
- the height from the web level 222 is perpendicular to the web level 222 measured.
- the walls 227i of the side members 227 have for everyone consisting of a fastening tab 221h Mounting portion 221h a slit-shaped hole 227s.
- the Both side panels have on the top edges of the walls 227i for example still angled outwards and / or bent edge portions 227t.
- the side elements 227 are somewhat resilient, for example, so that when they are inserted into the groove-like spaces 221k of the louvre mirror grid 221 and when inserting the Fastening tabs 221h into holes 227s temporarily can be deformed elastically and more or less engage.
- the side edges of the legs 221e of the slats 221c then lie at least approximately on the walls 227i, touching them at least in places and preferably at least approximately along its entire length concern about these.
- the transition areas are which the lower ends of the walls 227i with the Connect holding portions 227n, and the inner legs 227p of the holding sections 227n at least in places and for example, most of the stripes 221b and side portions 227i formed from the outermost portions thereof on.
- the outer legs 227r encompass the Holding portions 227n of the side members 227 the free edges of side portions 221i.
- the mounting tabs 221h after inserting through holes 227s angled and / or bent so that they are at least in places rest against the walls 227i.
- the figures 11 and 12 show the shapes of the fastening tabs the angling with dash-dotted lines and after the Bend with full lines. If the mounting tabs are angled, they firmly connect the walls 227i to the Legs of the slats 221. This and through the in the groove-like spaces 221k seated parts of the Side elements 227, the whole side elements 227 are fixed and stably connected to the louvre mirror grid 221. The existing at the upper edges of the walls 227i, from this edge portion 227t of the side elements projecting outward 227 can possibly be used to detachably connect the light distributor 220 with the not shown, holding the lamp 215 Serve housing.
- the louvre mirror grid 221 and for example, the two side elements 227 again exist from pieces of sheet metal made of aluminum or an aluminum alloy.
- the sheet metal pieces have on both sides a smooth and light reflecting, reflecting surface, one of these surfaces being analogous to that for the Louvre 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 webs 221d, 221f and above all the spaces between the light transmission 223 adjacent surfaces of the legs 221e of the slats of the louvre mirror grid 221 should then analogous to the highly reflective louvre mirror louvres 21 and 121 his.
- the two side elements 227 at least the surface which is highly reflective the inner surfaces facing each other and the slats which forms walls 227i. Because the louvre mirror grid 221 and the two side elements 227 from originally separate parts are made possible to make the inner surfaces of the walls 227i highly reflective, although only one of the two surfaces of the sheet metal pieces is highly reflective is and although the walls are only one layer.
- the lighting devices 101, 201 and their light distributors 120 or 220 be formed similarly and similar properties have as the lighting device 1 and the light distributor 20th
- the lighting devices and their light distributors can be modified in other ways.
- the curved legs 21e and 221e of the louvre mirror grid 21, 221 could be replaced by legs, for example that are the same as the legs 121e of the louvre mirror grid 121 are even.
- the levels could Leg 121e by bent analogously to leg 21e Thighs to be 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 lamp for attachment be formed on a wall.
- the walls 21i, 121i or at least their second, inner wall sections 21m, 121m in vertical cross sections at least partly steadily and smoothly curved, concave, for example, approximately parabolic inner surfaces exhibit.
- the shapes of the side edges of the legs 221e of the Slats 221c and the cross-sectional shapes of the walls 227i can, for example, similar to the light distributor 20 trained and modified.
- the Deck reflectors 8, 108, 208 at least partially like this that their lower reflective surfaces are bent in vertical cross sections at least partially steady, smooth as well as curved concave and for example roughly are parabolic. If in the case of FIGS.
- the deck reflector not shown the lighting device 201.
- Lighting device 101 can the distribution of the Walls 121i up in the vicinity of the lighting device 101 reflected light and the proportion of this light at total light generated by the light source 113 by the Shaping and dimensioning of the reflector 108 and the walls 121i of the light distributor 120 and also by the distances of the reflector 108 and the light distributor 120 from one another as well as being influenced by the lamp within wide limits.
- the one of the lamps 15, 115, 215 of the light sources 13, 113, 213, directly or after at least one reflection by the Light transmission spaces 23, 123, 223 of the light distributors 20, 120, 220 part of the light radiated through can all lighting devices 1, 101, 201 at least 30% as well preferably at least about 40% of the total of those Light sources 13, 113, 213 generated light.
- Luminous devices 1, 201 is said part of the Light even preferably at least 50% for example at least or about 70% of the total from the light source 13 or 213 generated light or more.
- the light distributors may also be made of sheet metal are produced in which both surfaces are highly reflective as well as specular and especially the same are good light reflecting. Especially in this case can the second, inner wall sections 21m, 121m Walls 21i, 121i omitted and the latter in one layer be formed.
- the light distributors 20, 220 could one possibly with part of the legs 21e, 221e Slats omit the fastening sections 21h, 221h.
- the Fastening sections could also possibly with incisions be provided so that they have hook-like shapes and / or can be locked with the walls 21i or 227i could.
- the legs of the slats could their upper ends still have angled end sections that from the light transmission space adjacent to the relevant leg directed away and for example roughly are parallel or slightly inclined to the web plane 22 or 122. These end sections of the legs can then directly from the Lamp or light radiated against it by the reflector at least partly reflect in such a way that after further Reflections on the reflector and / or on the slats also still down through light transmission spaces is emitted from the light distributor.
- Light distributor possibly two or more in parallel rows of slats running side by side have, between which one with the webs of the slats contiguous stripe is present. Also could those at the two ends of a row of slats End lamellae two legs protruding from their web exhibit.
- the strips 221b and the side portions 221i thereof for example be changed so that the groove-like spaces 221k one essentially flat, parallel to the web plane 222 base have as well as more or less U-shaped and / or trapezoidal and are still easy to move up, for example expand.
- the exterior could face down angled leg 227r, for example, to the outside and / or above, possibly multiple angled and / or bent edge sections are replaced.
- the middle section 21a and / or 121a and / or 221a of the louvre mirror grid 21 or 121 or 221 can even be changed so that the legs of the Slats away from the webs and away from the light source run down.
- the two legs belonging to the same lamella inclined downwards towards each other from the webs Further would be the positions and shapes of strips 21b and 121b, respectively or and the side walls with respect to the central sections 21a, 121a to be changed as far as necessary.
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)
Abstract
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, dadurch gekennzeichnet, dass die Streifen (21b, 121b, 221b) und Lamellen (21c, 121c, 221c) zusammen aus einem einzigen Blechstück bestehen, dass jede Lamelle (21c, 121c, 221c) einen mit den beiden Streifen (21b, 121b, 221b) zusammenhängenden Steg (21d, 21f, 121d, 121f, 221d, 221f) aufweist und 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 gemessenen 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 |
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CH21602001 | 2001-11-23 | ||
CH21602001 | 2001-11-23 |
Publications (2)
Publication Number | Publication Date |
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EP1314928A1 true EP1314928A1 (de) | 2003-05-28 |
EP1314928B1 EP1314928B1 (de) | 2005-10-12 |
Family
ID=4567761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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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 |
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US (1) | US6764199B2 (de) |
EP (1) | EP1314928B1 (de) |
AT (1) | ATE306638T1 (de) |
CA (1) | CA2412280A1 (de) |
DE (1) | DE50204514D1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
JP2010509724A (ja) * | 2006-11-13 | 2010-03-25 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 物品の表面品質を検査する照明器具 |
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 |
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 |
US9578769B2 (en) | 2012-05-29 | 2017-02-21 | Apple Inc. | Components of an electronic device and methods for their assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05266707A (ja) * | 1992-03-16 | 1993-10-15 | Meiji Natl Ind Co Ltd | 照明器具用バッフルの製造方法 |
JPH10125125A (ja) * | 1996-10-21 | 1998-05-15 | Matsushita Electric Works Ltd | 照明器具用ルーバ |
EP1154200A2 (de) | 2000-05-10 | 2001-11-14 | Regent Beleuchtungskörper AG | Lichtverteiler für eine Leuchteinrichtung sowie Leuchteinrichtung und Verwendung einer Leuchteinrichtung |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3974299A (en) * | 1998-05-08 | 1999-11-29 | Nsi Enterprises, Inc. | Luminaire having baffles with observable visual accent |
-
2002
- 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
- 2002-07-22 EP EP02405634A patent/EP1314928B1/de not_active Expired - Lifetime
- 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
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05266707A (ja) * | 1992-03-16 | 1993-10-15 | Meiji Natl Ind Co Ltd | 照明器具用バッフルの製造方法 |
JPH10125125A (ja) * | 1996-10-21 | 1998-05-15 | Matsushita Electric Works Ltd | 照明器具用ルーバ |
EP1154200A2 (de) | 2000-05-10 | 2001-11-14 | Regent Beleuchtungskörper AG | Lichtverteiler für eine Leuchteinrichtung sowie Leuchteinrichtung und Verwendung einer Leuchteinrichtung |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 018, no. 034 (M - 1544) 19 January 1994 (1994-01-19) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 10 31 August 1998 (1998-08-31) * |
Also Published As
Publication number | Publication date |
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EP1314928B1 (de) | 2005-10-12 |
ATE306638T1 (de) | 2005-10-15 |
US20030099107A1 (en) | 2003-05-29 |
CA2412280A1 (en) | 2003-05-23 |
DE50204514D1 (de) | 2005-11-17 |
US6764199B2 (en) | 2004-07-20 |
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