EP0930459B1 - Réflecteur pour une source lumineuse, notamment pour éclairage d' ambiance - Google Patents

Réflecteur pour une source lumineuse, notamment pour éclairage d' ambiance Download PDF

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Publication number
EP0930459B1
EP0930459B1 EP98122979A EP98122979A EP0930459B1 EP 0930459 B1 EP0930459 B1 EP 0930459B1 EP 98122979 A EP98122979 A EP 98122979A EP 98122979 A EP98122979 A EP 98122979A EP 0930459 B1 EP0930459 B1 EP 0930459B1
Authority
EP
European Patent Office
Prior art keywords
reflector
layer
reflector according
base layer
reflection
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
EP98122979A
Other languages
German (de)
English (en)
Other versions
EP0930459A2 (fr
EP0930459A3 (fr
Inventor
Elmar Fröis
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.)
Zumtobel Staff GmbH
Original Assignee
Zumtobel Staff GmbH
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
Application filed by Zumtobel Staff GmbH filed Critical Zumtobel Staff GmbH
Publication of EP0930459A2 publication Critical patent/EP0930459A2/fr
Publication of EP0930459A3 publication Critical patent/EP0930459A3/fr
Application granted granted Critical
Publication of EP0930459B1 publication Critical patent/EP0930459B1/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
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings

Definitions

  • a reflector that comes from a light source, especially one from a Lamp of a luminaire, at least partially outgoing light rays into a certain one To reflect the beam direction. This will create those generated by the light source Light energy and light output largely exploited.
  • a light source especially one from a Lamp of a luminaire
  • Light energy and light output largely exploited.
  • For lights that the The purpose of lighting a room delimited by walls is the direction of lighting directed into the room with direct lighting. However, there are also lights are set up for indirect or indirect and direct lighting.
  • On Reflector for fully or predominantly indirect lighting is arranged that the main direction of illumination to the wall or ceiling bounding the room is directed.
  • Known reflectors, both direct and indirect Lighting are used, for example, perforated so that only part of the light Light source is reflected and another part of the light is reflected in the area of the reflector Perforation openings.
  • reflectors for lights for room lighting consist of one the electrical equipment containing base part on which a reflector and a light source are held, the reflector protruding freely from the base part.
  • Luminaire construction is not a so-called luminaire housing surrounding the reflector intended.
  • a reflector be made from a self - supporting base layer made of white and opaque or crystal clear and translucent plastic to form the reflection of the light rays with a Reflective layer is coated.
  • the coating can e.g. from evaporated Aluminum.
  • the reflector coating When applying the reflector coating, it can happen that small areas of the Reflective surface should not be coated. This can be caused by impurities such as. Dust particles have a full coating on the reflective surface prevent by their presence and / or tend to flake off, causing small Holes appear in the reflective layer. If the base layer is crystal clear, the light can radiate through the holes, the holes - on the outer surface of the Reflector viewed - from the remaining dark-appearing outer surface of the reflector stand out as clearly recognizable points of light.
  • the reflector In order to reduce this disruptive effect of the light points, is from the EP 0 336 244 a luminaire is known, the reflector by a self-supporting Base layer is formed, the one on the inside facing the light source Has a reflective layer made of partially reflective and partially transparent material, the base layer also consisting of a partially transparent material. There here the reflector when viewed from the outside due to a relatively high Luminance appears as a luminous body, is the difference in luminance diminished to existing light points.
  • the present invention has for its object to provide an alternative solution Specify formation of a reflector with the properties described above.
  • Base layer partially transparent additional layer will be the same achieved technical lighting properties as in that known from EP 0 336 244 Reflector.
  • the additional layer can be applied to the base layer done in a simple manner, so that reflectors can be installed at a high cost Quality can be maintained.
  • the additional layer can be on the outside the base layer and / or the inside under the reflective layer become.
  • the light is both on the inside of the reflector facing the light source and also on the outside of the Reflector is emitted.
  • the reflector according to the invention is therefore suitable for both direct lighting as well as indirect lighting of the existing room, where due to the partially transparent or partially transparent reflection layer and the Partially transparent additional layer, especially in the case of a reflector with an upright running wall, a special light effect is achieved in that at a External view of the reflector when the lamp is on as a luminous body appears, that is, especially due to the partial transparency of the additional layer Intrinsic luminance surprisingly comes into its own much more than at crystal clear design.
  • This light effect is particularly advantageous with a reflector, which extends in a sleeve or dome shape around a vertical central axis.
  • the disturbing Effect of the light points is also in the embodiment according to the invention according to claim 1 reduced or negligible because the reflector when viewing appears on the outside as a luminous body due to the relatively high inherent luminance and therefore the luminance difference to existing light points is significantly reduced is.
  • the subclaims contain features that improve lighting of the room, the construction of the reflector or an associated luminaire improve and an easy to use and inexpensive to manufacture construction enable.
  • the lamp generally designated 1 consists of a base part 2 with a Fastener 3 at one end and one from its other end protruding reflector 4 in the form of a hollow dome, the cavity 5 with the associated cavity opening 6 faces away from the base part 2.
  • the base part 2 can have a tapered, preferably cylindrical support pin 7 with a flange 8 widening at the end have, on which the reflector 4 rests and is preferably releasably attached, in particular by means of a locking device 9 to be described.
  • the hollow dome-shaped reflector body 4a has one in its central ridge area preferably round opening 11 through which a light source, here in the form of a Electric lamp 12 extends into the cavity 5, which in a socket 13 in Carrying pin 7 sits.
  • a light source here in the form of a Electric lamp 12
  • the reflector body 4a consists of several layers.
  • One the hollow dome-shaped Base layer 4b forming reflector body 4b is made of transparent plastic, and it extends from the edge 11a of the ridge opening 11 in a dome shape to the edge 6a Cavity opening 6.
  • the edge 6a can with an angular edge expansion a flange 6b and a sleeve-shaped adjoining it
  • the peripheral wall portion 6c can be stabilized.
  • the thickness d of the base layer 4b can be approximately 1 mm to about 3 mm, in particular about 2 mm. This thickness d can be in the whole Area of the reflector body 4a be approximately the same, the reflector body 4a or Base layer 4b is of self-supporting strength, i.e. the reflector body 4a stands up self-supporting from base part 2 and does not require any support from side housing parts, as is usual with other lights.
  • the reflector body 4a has on its inside 14 a reflection surface 15, which is in the circumferential direction over the entire inner circumference and along the central axis 16 of the Luminaire 1 from the edge 6a of the cavity opening 6 to the edge 11a of the ridge opening 11 can extend.
  • the reflection surface 15 is a due to the bare surface Reflective layer 17 formed, which is arranged on the inner surface 14a of the base layer 14b is.
  • the reflection layer 17 is partially reflective and partially transparent or partially translucent. It can be a thin metal coating, especially made of Aluminum, trade. In the present embodiment, the reflection layer 17 is one evaporated aluminum layer.
  • the reflective layer 17 is so thin that it is partially transparent. Part of the light is consequently reflected and turned on in the lighting mode Part of the light shines through the reflective layer.
  • the reflection surface 15 also has known facets 18 that block the light of the Scatter lamp 12 in the reflection in a small angular range and thereby one cause homogeneous, even light distribution.
  • the facets 18 are through Faceted surfaces formed by the curvature of a theoretical inner surface deviate and include obtuse angles between them that are slightly smaller than 180 °.
  • the facets 18 are as Negative surfaces on the inner surface 14a forming during the injection molding process Molded part of the mold so that the facets 18 during injection molding of the Reflector body 4a are molded simultaneously.
  • the base layer 4b of the reflector body 4a is the one shown in FIG. 2 and made of the reflector known from EP 0 336 244 is partially transparent and thus translucent, which is indicated by a uniform Coloring or clouding the base layer 4b, here the plastic is reached and leaves thus a subdued and diffuse passage of the light rays.
  • the color of the Color to be mixed can be different. Light shades are special advantageous, e.g. a range of hues between white and yellow or between white and orange. Basically, all colors are suitable.
  • the partial light transmission of the reflection layer 17 and the base layer 4b is so great that the structure of the facets 18, here their boundary lines 18a when switched off Lamp 12 and / or with lamp 12 switched on (in the lighting mode) and with normal Room light or in the dark room are visible from the outside, e.g. as shadow edges, what in Fig. 1 is shown with dashed lines.
  • the latching device 9 has one or more on the one connecting part Locking lugs 23, which are elastically bendable transversely to the central axis 16 and thus are biased into a latching position in which they are due to their own elasticity Reach behind shoulder 24 on the other connecting part.
  • the locking lugs 23 are each configured by a locking arm 25 formed, which extends in the longitudinal direction of the central axis 16, in a Binding catch 26 and an undercut formed therein engages behind.
  • the locking lugs 23 are preferably in the edge region of the
  • the apex opening 11 is arranged in one piece from the reflector body 4a or from one associated washer 27 as a one-piece injection molded part, for. B. made of plastic can stand out.
  • the annular disc 27 can surround the ridge opening 11 Position with the reflector body 4a by screws, rivets or the like. Fasteners are connected.
  • For a detachable Locking devices can be accessed using a pin or screwdriver Openings on the base part 2 may be prescribed (not shown), through which the Locking lugs 23 can be bent into their release positions with an associated tool are and thereby the locking can be released.
  • the equipment required for the electrical operation of the lamp 1 including a ballast when the lamp is formed by a fluorescent lamp itself in the cylindrical base part 2, which is preferably made of light metal and has better heat dissipation of coolant fins on its outer surface. Electrical connections for electrical lines, not shown, can be in the range of Fastening element 3 may be arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)
  • Planar Illumination Modules (AREA)

Claims (14)

  1. Réflecteur (4) pour une source lumineuse, notamment pour un éclairage d'ambiance, se composant d'une couche de base autoportante (4b), faite d'une matière transparente, avec une couche de réflexion (17) en une matière partiellement réfléchissante et partiellement transparente, disposée sur la face intérieure (14) tournée vers la source lumineuse, caractérisé en ce que la couche de base (4b) présente sur sa face extérieure (19) et/ou sur sa face intérieure (14) en dessous de la couche de réflexion (17) une couche supplémentaire partiellement transparente (21).
  2. Réflecteur selon la revendication 1, caractérisé en ce que la couche de base (4b) composée de préférence de matière plastique est teintée en profondeur.
  3. Réflecteur selon la revendication 1 ou 2, caractérisé en ce que la couche de base (4b) et/ou la couche supplémentaire (21) présente, respectivement, une teinte claire dans la gamme de teintes de blanc à jaune ou de blanc à orange.
  4. Réflecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche de réflexion (17) se compose de métal, en particulier d'aluminium.
  5. Réflecteur selon la revendication 4, caractérisé en ce que le métal est déposé par évaporation sous vide.
  6. Réflecteur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la couche supplémentaire (21) est une couche de laque appliquée extérieurement ou intérieurement sur la couche de base (4b).
  7. Réflecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que la face de réflexion (15) qui est formée par la couche de réflexion (17) présente des facettes (18).
  8. Réflecteur selon la revendication 7, caractérisé en ce que les facettes (18) sont formées sur la face intérieure (14a) de la couche de base (4b).
  9. Réflecteur selon la revendication 7 ou 8, caractérisé en ce que la transparence partielle, respectivement la translucidité de la couche de base (4b) et/ou de la couche supplémentaire (21) est tellement grande que la structure des facettes (18) est visible depuis le côté du réflecteur (4) qui est situé à l'opposé de la source lumineuse.
  10. Réflecteur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il présente la forme d'une coupole creuse avec une ouverture (11) dans la région du sommet.
  11. Réflecteur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est assemblé par un dispositif d'assemblage à une pièce de base (2) d'un appareil d'éclairage (1).
  12. Réflecteur selon la revendication 11, caractérisé en ce que le dispositif d'assemblage est disposé dans la région du bord (11a) de l'ouverture du sommet (11).
  13. Réflecteur selon la revendication 11 ou 12, caractérisé en ce que le dispositif d'assemblage est formé par un dispositif d'encliquetage (9).
  14. Réflecteur selon la revendication 13, caractérisé en ce que le dispositif d'encliquetage présente, sur une première pièce du dispositif d'encliquetage, un ou plusieurs ergots d'encliquetage (23) disposés les uns en face des autres, saillants sensiblement parallèlement à l'axe et flexibles transversalement par rapport à celui-ci, qui accrochent par l'arrière des faces d'épaulement sur l'autre pièce du dispositif d'encliquetage.
EP98122979A 1998-01-14 1998-12-03 Réflecteur pour une source lumineuse, notamment pour éclairage d' ambiance Expired - Lifetime EP0930459B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19801128A DE19801128A1 (de) 1998-01-14 1998-01-14 Reflektor für eine Lichtquelle, insbesondere zur Raumbeleuchtung
DE19801128 1998-01-14

Publications (3)

Publication Number Publication Date
EP0930459A2 EP0930459A2 (fr) 1999-07-21
EP0930459A3 EP0930459A3 (fr) 2001-08-29
EP0930459B1 true EP0930459B1 (fr) 2004-10-06

Family

ID=7854578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122979A Expired - Lifetime EP0930459B1 (fr) 1998-01-14 1998-12-03 Réflecteur pour une source lumineuse, notamment pour éclairage d' ambiance

Country Status (3)

Country Link
EP (1) EP0930459B1 (fr)
AT (1) ATE278909T1 (fr)
DE (2) DE19801128A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006023120B4 (de) 2006-05-16 2010-10-14 Auer Lighting Gmbh Lichtreflektor mit definierter Konturenschärfe der von diesem erzeugten Lichtverteilung
DE102013002892A1 (de) 2013-02-19 2014-08-21 Volkswagen Aktiengesellschaft Leuchtvorrichtung für ein Kraftfahrzeug
FR3022330B1 (fr) * 2014-06-16 2019-04-05 Valeo Vision Module lumineux pour l'eclairage et/ou la signalisation d'un vehicule automobile

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES388222A1 (es) * 1971-02-12 1973-09-01 Rubio Reqena Sistema de luminaria por reflexion-transmision.
GB2173889A (en) * 1985-04-05 1986-10-22 Manville Corp A reflector including prisms and a reflective coating thereon
DE8804149U1 (de) * 1988-03-26 1988-06-09 Hoffmeister-Leuchten GmbH & Co KG, 5880 Lüdenscheid Fassungsträger für elektrische Lampen mit einem am Fassungsträger befestigten Reflektor
DE3811297A1 (de) * 1988-04-02 1989-10-12 Licentia Gmbh Leuchte mit transparentem leuchtengehaeuse
DE8900921U1 (de) * 1989-01-27 1989-03-23 Herbert Waldmann GmbH & Co, 7730 Villingen-Schwenningen Reflektor mit Lampe
US5143446A (en) * 1992-02-11 1992-09-01 Lexalite International Corporation Lighting fixture with an improved light transmitting film
DE9217201U1 (de) * 1992-12-16 1993-02-11 Höpler, Johann, 8176 Waakirchen Illuminationsleuchte mit teilreflektierender Lampenkappe aus lichtdurchlässigem Kunststoff
DE9412022U1 (de) * 1994-07-25 1995-11-23 Michl, Oliver, 88682 Salem Leuchte
SE503281C2 (sv) * 1994-11-14 1996-05-13 Svelux Ind Ab Reflektor
DE19540414C1 (de) * 1995-10-30 1997-05-22 Fraunhofer Ges Forschung Kaltlichtreflektor
FR2741699A1 (fr) * 1995-11-24 1997-05-30 Boban Leonard Douille a ergots
DE19638367A1 (de) * 1995-12-22 1997-06-26 Zumtobel Licht Leuchte mit mindestens einer Lampe und mindestens einem Reflektor und Verfahren zum Herstellen eines Reflektors
DE19615388A1 (de) * 1996-04-18 1997-10-23 Zumtobel Licht Leuchte mit einer insbesondere kleinvolumigen Lampe

Also Published As

Publication number Publication date
ATE278909T1 (de) 2004-10-15
DE19801128A1 (de) 1999-07-15
EP0930459A2 (fr) 1999-07-21
EP0930459A3 (fr) 2001-08-29
DE59812080D1 (de) 2004-11-11

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