EP1467139B1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
EP1467139B1
EP1467139B1 EP04008208A EP04008208A EP1467139B1 EP 1467139 B1 EP1467139 B1 EP 1467139B1 EP 04008208 A EP04008208 A EP 04008208A EP 04008208 A EP04008208 A EP 04008208A EP 1467139 B1 EP1467139 B1 EP 1467139B1
Authority
EP
European Patent Office
Prior art keywords
light
light source
reflectors
lighting apparatus
accordance
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
Application number
EP04008208A
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German (de)
English (en)
Other versions
EP1467139A3 (fr
EP1467139A2 (fr
Inventor
Christian Bartenbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP1467139A2 publication Critical patent/EP1467139A2/fr
Publication of EP1467139A3 publication Critical patent/EP1467139A3/fr
Application granted granted Critical
Publication of EP1467139B1 publication Critical patent/EP1467139B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0058—Reflectors for light sources adapted to cooperate with light sources of shapes different from point-like or linear, e.g. circular light sources
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the present invention relates to a lighting device having at least one arranged substantially completely within a light guide light source and at least two arranged on light exit openings of the light guide reflectors for angular limitation of the light emission, wherein the arranged between the light source and at least one reflector light guide each a part of the light source radiated light to the respective reflector is feasible, wherein at least on one side of the light source at least two of these differently far away reflectors are provided and the reflectors are arranged in such a way that their main radiation direction is aligned substantially perpendicular to the longitudinal extent of the light source.
  • a lighting device is known from US 4,422,134 known.
  • reflectors of lighting devices serve to angularly limit the light emitted by the light source. They are known in many different forms. In the lighting devices there is a direct relationship between the length or height of the reflector and the masking angle defined by the reflector. Thus, the overall height of the reflector is greater, the narrower the light emitted by the light source narrowed, and the smaller the Ausblendwinkel is to be formed. For very narrow radiating arrangements of light source and reflector, therefore, the prior art often results in an undesirable overall height of the overall arrangement.
  • Generic lighting devices with two reflectors are for example from the US 4,622,624 , of the US 4,794,501 , of the DE 36 00 915 and the EP 0 235 652 known. In all these lights, one reflector is arranged on one side and the other reflector on the other side of the light source. Although with appropriate dimensioning of the light guide even with these lights already a flatter construction of the lighting device is achieved, their height can not be sufficiently reduced for some applications.
  • the at least one light source is designed as a linear light source and the cross-sectional area of the light guide is tapered with increasing distance from the light source, preferably always on the side facing away from the light source side of a reflector.
  • reflectors can be used with a smaller height, resulting in a reduction in the overall height of the lighting device.
  • the greater the reduction in height the more reflectors are used.
  • the light guiding devices ensure that no light is radiated on the way to the individual reflectors in undesired angles or lost.
  • Small Ausblendwinkel can be realized with the lighting device according to the invention at the same time low height.
  • the main beam direction indicates that angular range into which the main portion of the luminous flux is emitted by the reflectors or by the illumination device.
  • the main portion conveniently comprises 90% of the total luminous flux emitted by the reflectors or by the lighting device.
  • the illumination device as a ceiling light with a horizontally arranged linear light source, it is then provided, for example, that the illumination device radiates substantially upwards and / or downwards when the main radiation direction is substantially perpendicular to the longitudinal direction of the linear light source. With vertical alignment of the light source can be provided according to a radiation to the side, etc ..
  • the light-conducting devices have at least one channel with light-reflecting surfaces.
  • the channel may be replaced, preferably in part, by optical fibers or the like.
  • Fig. 1 shows a lighting device according to the prior art.
  • the light source 1 is in this case surrounded directly by two reflectors 2.
  • the Ausblendwinkel ⁇ results directly from the shape of the reflectors 2 and their height 6 and the position of the light source 1.
  • the height 6 must be chosen the greater the higher the radiated light spatially concentrated, and the smaller the Ausblendwinkel ⁇ should be selected .
  • the operating device 5, in which the power supply for the light source 1 and the like is arranged, is usually arranged above the reflectors 2, whereby the overall height of the lighting device increases again by the height 7 of the operating device 5.
  • a lighting device in which the light of a light source 1 is guided by the light guide 3 to each side of the light source 1 arranged reflectors 2 and emitted therefrom, while achieving a Ausblendwinkels ⁇ .
  • the wall can also be partially transparent or, as explained below, completely closed and designed to be reflective inwards.
  • the cross section 18 is favorably 1.0 to 1.5 times, preferably 1.25 times, the projection of the light source 1 parallel to the cross section 18.
  • Fig. 7 an alternative to the tapered light guides 3 is shown.
  • each reflector 2 a separate, surrounded by the walls 4, channel-shaped light guide 3 is provided, these channels are substantially parallel to each other.
  • the respective light exit cross-sectional area 13 of the light-conducting device 3 on the reflector 2 is smaller in both variants than the projection of the cross-sectional area of the light source 1 parallel thereto.
  • the reflectors 2 advantageously have a circular-arc-shaped curved portion 14 and a parabolic curved portion 15.
  • the center of the arc-shaped curved portion 14 and / or the parabolic focal point of the parabolic curved portion 15 are preferably on the lower edge 19 of the light exit cross-sectional area 13.
  • the predetermined by the parabolic curved portion 14 main beam direction preferably coincides with the Ausblendwinkel ⁇ together.
  • the reflectors 2 are conveniently arranged in this, as well as the other embodiments in each case at a light exit opening 16 of the light guide on the side facing away from the light source 1 side.
  • the reflectors 2 and / or the light-guiding device 3 it is favorable, but not absolutely necessary, for the reflectors 2 and / or the light-guiding device 3 to be arranged symmetrically with respect to an axis or plane passing through the light source 1.
  • asymmetric variants are possible as well Fig. 12 shows.
  • the light source 1 is surrounded on one side by a rear reflector 20.
  • Fig. 3 illustrated variant of the invention provides a good compromise from height reduction and luminaire detailing.
  • the light source 1 is arranged substantially completely within the light guide 3, shows Fig. 5
  • the lighting devices according to the invention may basically have a round, as well as a longitudinally extending shape and various other intermediate forms. Especially at the Illumination of workplaces provides a favorable variant, however, that the lighting device is elongated.
  • linear or longitudinal light sources for example, fluorescent tubes, preferably with a diameter between 16 mm and 26 mm, halogen lamps or an array of a plurality of linearly arranged point light sources can be used.
  • FIG. 4 an alternative to the tapered light guide 3 is shown.
  • a longitudinal blanking in the longitudinal direction of the linear light source 1 can also be achieved by arranging lamellae 10 or at least one mirror-grid optic 9 or prisms 11 in the region of the reflectors 2 and / or inside the light-guiding device 3.
  • Mirror grid optics 9 are known in the art and may be implemented in various forms. However, a structurally particularly simple type of longitudinal suppression is achieved by louvers 10 arranged directly next to the light source 1. The shape of the slats can in turn be selected according to the prior art. Favorable shapes are known from lamellae 10 used in mirror grid optics 9. Instead of the fins 10 can also, as in Fig. 9 shown, prisms 11 are used for longitudinal suppression.
  • the advantages of the arrangement of the fins 10 and the prisms 11 directly next to the light source 1 and within the light guide 3 are on the one hand in high efficiency, since the lamp back radiation takes place in the immediate vicinity of the light source 1 and on the other in the fact that with a single row of lamellae 10 or with a single, along the light source 1 extended prism 11, the light emerging from a plurality of light exit openings 16 light is hidden in the longitudinal direction of the linear light source 1.
  • the Fig. 11a and 11b show in a plan view of a portion of a linear light source 1, as the lamellae 10 may be arranged relative to the light source in the light guide 3.
  • the longitudinal blanking effect of the mirrored lamellae 10 is shown on exemplary beams 17.
  • mirror grid optics 9 When using mirror grid optics 9, a separate mirror grid optics 9 must be arranged at each light exit opening 16 in order to achieve the same longitudinal blanking effect.
  • the Fig. 6a and 6b show various detail embodiments of the light guide 3 in the area of the light source 1.
  • the in Fig. 6a Evolvents 8 shown allow the reversion of light into the lamp as far as possible to reduce, while at the in Fig. 6b shown, particularly simple variant, a minimum height of the light guide 3 results.
  • the reflectors and / or the wall 4 of the light guide 3 and / or - if available - the lamellae 10 or mirror grid optics 9 or the back reflector 20 surfaces having a light reflectance of greater than 90% Further improved variants provide reflectivities greater than 95% or greater than 98%.
  • the Ausblendwinkel ⁇ is predetermined by the course of the reflector 2 at a light exit opening 16. However, further confinement may be due to additional apertures 12, as in FIG 10a and 10b can be achieved, and these also favorably have highly reflective surfaces.
  • Fig. 13 shows a preferred embodiment.
  • the walls 4 are partially formed by diaphragm body 27 may be integrated into the accessories, counterweights or other fittings 26.
  • the lighting device shown is tuned for cross-suppression to a Ausblendwinkel of 30 °.
  • the longitudinal suppression can be achieved by the slats 10, as in Fig. 11b shown to be achieved.
  • the masking angle of the longitudinal blanking achieved in the specific embodiment is also 30 °.
  • the slats 10 have a length 23 of 45 mm and a distance 28 of 35.5 mm.
  • the smallest width of the lamella 10 is in this example 1 mm, the largest width 18.5 mm.
  • the overall height 25 of the embodiment is 46 mm, the total width 24 320 mm.
  • the widths 21 are 40 mm.
  • the lower width 22 of the central visor body 27 has 80 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Polarising Elements (AREA)
  • Vehicle Body Suspensions (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)
  • Seal Device For Vehicle (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Elements Other Than Lenses (AREA)

Claims (13)

  1. Dispositif d'éclairage avec au moins une source lumineuse (1) disposée pour l'essentiel complètement à l'intérieur d'un mécanisme de guidage de la lumière (3) et avec au moins deux réflecteurs (2) disposés sur les orifices de sortie de la lumière (16) du mécanisme de guidage de la lumière (3) et destinés à la limitation angulaire du rayonnement de lumière, sachant qu'une partie respective de la lumière rayonnée par la source lumineuse (1) est guidable à partir du mécanisme de guidage de la lumière (3) disposé entre la source lumineuse (1) et au moins un réflecteur respectif (3) vers le réflecteur respectif, sachant qu'au moins sur un côté de la source lumineuse (1), au moins deux de ces réflecteurs (2) placés à des distances différentes sont prévus et que les réflecteurs (2) sont disposés de manière à ce que leur direction principale du faisceau soit alignée pour l'essentiel verticalement par rapport à l'extension longitudinale de la source lumineuse (1), caractérisé en ce qu'au moins l'une des sources lumineuses (1) est formée comme source lumineuse linéaire et en ce que la superficie de la section (15) du mécanisme de guidage de la lumière (3) se réduit lorsque la distance par rapport à la source lumineuse (1) augmente.
  2. Dispositif d'éclairage selon la revendication 1, caractérisé en ce qu'au moins un mécanisme de guidage de la lumière (3) présente au moins un canal avec des surfaces de préférence brillantes et réfléchissant la lumière.
  3. Dispositif d'éclairage selon la revendication 2, caractérisé en ce que deux ou plusieurs canaux sont prévus, qui circulent pour l'essentiel parallèlement l'un à l'autre.
  4. Dispositif d'éclairage selon la revendication 1 ou 2, caractérisé en ce que la réduction de la superficie de la section du mécanisme de guidage de la lumière est toujours prévue sur le côté détourné de la source lumineuse d'un réflecteur.
  5. Dispositif d'éclairage selon une quelconque des revendications 1 à 4, caractérisé en ce qu'une superficie de section de sortie de la lumière (13) du mécanisme de guidage de la lumière (3) sur le réflecteur (2) est inférieure à la projection de la superficie de la section de la source lumineuse (1) parallèle à celui-ci.
  6. Dispositif d'éclairage selon une quelconque des revendications 1 à 5, caractérisé en ce que les réflecteurs (2) présentent une section courbée en forme d'ogive (14) et une section courbée paraboliquement (15).
  7. Dispositif d'éclairage selon la revendication 6, caractérisé en ce que le point central de la section courbée en forme d'ogive (14) et/ou le foyer parabolique de la section courbée paraboliquement (15) se trouve(nt) sur un bord inférieur (19) d'une superficie de section de sortie de la lumière (13).
  8. Dispositif d'éclairage selon une quelconque des revendications 1 à 7, caractérisé en ce que les réflecteurs (2) sont disposés respectivement sur un orifice de sortie de la lumière (16) du mécanisme de guidage de la lumière (3) sur son côté détourné de la source lumineuse (1).
  9. Dispositif d'éclairage selon une quelconque des revendications 1 à 8, caractérisé en ce que dans la zone des réflecteurs (2) et/ou à l'intérieur du mécanisme de guidage de la lumière (3) sont disposés des lamelles (10), de préférence au moins une optique des treillis à réflecteurs (9), ou des prismes (11).
  10. Dispositif d'éclairage selon une quelconque des revendications 1 à 9, caractérisé en ce que les réflecteurs (2) et/ou les parois (4) du mécanisme de guidage de la lumière (3) et/ou - si elles existent - les lamelles (10) ou optiques des treillis à réflecteurs (9) présentent des surfaces ayant un degré de réflexion de la lumière supérieur à 90%, ou supérieur à 95%, ou supérieur à 98%.
  11. Dispositif d'éclairage selon une quelconque des revendications 1 à 10, caractérisé en ce que la source lumineuse (1) est un tube fluorescent ou une disposition de sources lumineuses ponctuelles disposées linéairement.
  12. Dispositif d'éclairage selon une quelconque des revendications 1 à 11, caractérisé en ce que les réflecteurs (2) et/ou le mécanisme de guidage de la lumière (3) sont disposés symétriquement par rapport à un axe ou un plan passant à travers la source lumineuse (1).
  13. Dispositif d'éclairage selon une quelconque des revendications 1 à 11, caractérisé en ce qu'il présente quatre ou six réflecteurs (2), de préférence en disposition symétrique par rapport à la source lumineuse (1).
EP04008208A 2003-04-07 2004-04-05 Dispositif d'éclairage Expired - Lifetime EP1467139B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT5332003 2003-04-07
AT0053303A AT500432B8 (de) 2003-04-07 2003-04-07 Beleuchtungsvorrichtung

Publications (3)

Publication Number Publication Date
EP1467139A2 EP1467139A2 (fr) 2004-10-13
EP1467139A3 EP1467139A3 (fr) 2007-07-04
EP1467139B1 true EP1467139B1 (fr) 2010-05-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04008208A Expired - Lifetime EP1467139B1 (fr) 2003-04-07 2004-04-05 Dispositif d'éclairage

Country Status (3)

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EP (1) EP1467139B1 (fr)
AT (2) AT500432B8 (fr)
DE (1) DE502004011146D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2011004552A (es) 2008-10-31 2011-05-25 Code 3 Inc Unidad de iluminacion con reflectores de bandeja interior y exterior.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2360273A1 (de) * 1973-12-04 1975-06-05 Schaer Luederitz Gmbh Dipl Ing Einbau- und anbauspiegelleuchte hoher lichtintensitaet
US4422134A (en) 1981-06-22 1983-12-20 Metropolitan Furniture Corp. Luminaire with improved illumination of a visual task field
AT381577B (de) * 1983-04-08 1986-11-10 Bartenbach Christian Blendungsfreie leuchte fuer eine stabfoermige lichtquelle
US4622624A (en) * 1983-06-10 1986-11-11 Electri-Cable Assemblies, Inc. Under shelf task lighting fixture
JPS61284003A (ja) * 1985-05-17 1986-12-15 シ−メンス、アクチエンゲゼルシヤフト 間接的な反射照明器具
DE3600915A1 (de) * 1986-01-15 1987-07-16 Metro Sb Handels Ag Baar Lichtkanaldecke
DE3605226A1 (de) * 1986-02-19 1987-08-27 Daume & Jordan Gmbh & Co Kg Blendungsfreie leuchte mit streifenfoermigem abblendreflektor
DE3633440C2 (de) * 1986-10-01 1995-10-05 Bartenbach Christian Reflektor und Abschirmungssystem für eine Leuchte mit linear ausgedehnter Lichtquelle
DE3826676A1 (de) * 1987-08-13 1989-02-23 Wila Leuchten Gmbh Leuchte fuer kompakt-leuchtstofflampen
DE3900202A1 (de) * 1989-01-05 1990-07-12 Thorn Licht Gmbh Mit einer stabfoermigen leuchtstofflampe bestueckte rasterleuchte
DE4336023C2 (de) * 1993-09-30 1998-07-16 Erco Leuchten Reflektorsystem für eine Leuchte
DE4443916C1 (de) * 1994-12-09 1996-05-09 Zumtobel Licht Reflektoranordnung für eine Leuchte

Also Published As

Publication number Publication date
ATE467796T1 (de) 2010-05-15
AT500432B8 (de) 2007-02-15
AT500432B1 (de) 2006-03-15
EP1467139A3 (fr) 2007-07-04
AT500432A1 (de) 2005-12-15
DE502004011146D1 (de) 2010-06-24
EP1467139A2 (fr) 2004-10-13

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