DE29716013U1 - Lighting device - Google Patents

Lighting device

Info

Publication number
DE29716013U1
DE29716013U1 DE29716013U DE29716013U DE29716013U1 DE 29716013 U1 DE29716013 U1 DE 29716013U1 DE 29716013 U DE29716013 U DE 29716013U DE 29716013 U DE29716013 U DE 29716013U DE 29716013 U1 DE29716013 U1 DE 29716013U1
Authority
DE
Germany
Prior art keywords
lighting device
light guide
light
rod
housing
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
DE29716013U
Other languages
German (de)
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Priority to DE29716013U priority Critical patent/DE29716013U1/en
Publication of DE29716013U1 publication Critical patent/DE29716013U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/78—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for generating luminous strips, e.g. for marking trim component edges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/247—Light guides with a single light source being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • 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
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Polarising Elements (AREA)
  • Seal Device For Vehicle (AREA)
  • Vehicle Body Suspensions (AREA)

Description

Beschreibung:Description:

BeleuchtungseinrichtungLighting equipment

Die Erfindung betrifft eine Beleuchtungseinrichtung, insbesondere für Kraftfahrzeuge mit einem stabförmigen Lichtleiter, dessen quer zur Längsrichtung angeordnete erste Stirnfläche eine Lichteinkoppelfläche ist und der in Längsrichtung eine quer zur Längsrichtung abstrahlende Lichtaustrittsfläche aufweist, der gegenüberliegend eine reflektierende Fläche angeordnet ist.The invention relates to a lighting device, in particular for motor vehicles, with a rod-shaped light guide, the first end face of which, arranged transversely to the longitudinal direction, is a light coupling surface and which has a light exit surface radiating transversely to the longitudinal direction in the longitudinal direction, opposite which a reflecting surface is arranged.

Stabförmige Lichtleiter werden in Kraftfahrzeugen beispielsweise zur Beleuchtung von Anzeigeeinrichtungen oder eines Innenraumes verwendet. Aus der DE 4119 801 C2 ist ein stabförmiger, d. h., ein langer schmaler Lichtleiter bekannt, der eine Lichteinkoppelfläche von seiner schmalen Stirnseite aufweist und dessen Materialstärke mit zunehmenden Abstand der Lichteinkoppelfläche abnimmt. An seiner einer Lichtaustrittsfläche gegenüberliegenden Seite weist der Lichtleiter eine reflektierende Fläche auf. Der Lichteinkoppelfläche ist eine Lichtquelle vorgelagert. Dieser Lichtleiter ist zur rückwärtigen und gleichmäßigen Beleuchtung eines LC-Displays vorgesehen.Rod-shaped light guides are used in motor vehicles, for example, to illuminate display devices or an interior. DE 4119 801 C2 describes a rod-shaped, i.e. long, narrow light guide that has a light coupling surface on its narrow front side and whose material thickness decreases with increasing distance from the light coupling surface. On its side opposite a light exit surface, the light guide has a reflective surface. A light source is positioned in front of the light coupling surface. This light guide is intended for the rear and uniform illumination of an LC display.

Nachteilig dabei ist, daß der bekannte Lichtleiter größere Entfernungen nicht mit ausreichender Intensität ausleuchten kann.The disadvantage is that the known light guide cannot illuminate larger distances with sufficient intensity.

Aus der DE 41 17 278 C2 ist ein stabförmiger Lichtleiter für eine Innenleuchte für Kraftfahrzeuge bekannt, der eine quer zu seiner Längsrichtung abstrahlende Lichtaustrittsfläche aufweist, der gegenüberliegend eine reflektierende Fläche angeordnet ist.From DE 41 17 278 C2 a rod-shaped light guide for an interior light for motor vehicles is known, which has a light exit surface that radiates transversely to its longitudinal direction, opposite which a reflective surface is arranged.

Nachteilig bei diesem Lichtleiter ist, daß er nicht gleichmäßig ausleuchtet.The disadvantage of this light guide is that it does not illuminate evenly.

Aufgabe der vorliegenden Erfindung ist es daher, eine Beleuchtungseinrichtung zu schaffen, die bei gleichmäßiger Beleuchtung mit ausreichender Intensität abstrahlt.The object of the present invention is therefore to create a lighting device which radiates with sufficient intensity while providing uniform illumination.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Lichtleiter an seiner der ersten Stirnfläche gegenüberliegenden Seite eine zweite als Lichteinkoppelfläche ausgebildete Stirnfläche aufweist, und daß der Abstand zwischen Lichtaustrittsfläche und reflektierender Fläche in Längsrichtung sich von den Stirnflächen zur Mitte hin verringert.The object is achieved according to the invention in that the light guide has a second end face designed as a light coupling surface on its side opposite the first end face, and in that the distance between the light exit surface and the reflecting surface in the longitudinal direction decreases from the end faces towards the center.

Dadurch, daß beide einander gegenüberliegende Stirnflächen des Lichtleiters als Lichteinkoppelflächen genutzt werden, ist es möglich, die Intensität wesentlich zu erhöhen. Dadurch, daß der Abstand zwischen Lichtaustrittsfläche und reflektierender Fläche sich zur Mitte hin verringert, wird eine gleichmäßige Ausleuchtung erzielt.By using both opposing faces of the light guide as light coupling surfaces, it is possible to increase the intensity significantly. Because the distance between the light exit surface and the reflecting surface decreases towards the center, uniform illumination is achieved.

Nach einer bevorzugten Ausführungsform der Erfindung ist der stabförmige Lichtleiter als Prismenstab ausgebildet, dessen reflektierende Fläche quer zur Längsrichtung eine Vielzahl lichtablenkender Prismen aufweist. Dadurch ist es möglich, eine bessere Lichtverteilung in der vorgesehenen Abstrahlrichtung zu erzielen.According to a preferred embodiment of the invention, the rod-shaped light guide is designed as a prism rod, the reflective surface of which has a large number of light-deflecting prisms transverse to the longitudinal direction. This makes it possible to achieve better light distribution in the intended beam direction.

Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung wird der stabförmige Lichtleiter von zwei spiegelsymmetrisch angeordneten Lichtleiterhälften gebildet. Dadurch wird die Fertigung des Lichtleiters vereinfacht und er kann kostengünstiger hergestellt werden.According to a further preferred embodiment of the invention, the rod-shaped light guide is formed by two mirror-symmetrically arranged light guide halves. This simplifies the production of the light guide and it can be manufactured more cost-effectively.

Nach einer weiteren bevorzugten Ausführungsform der Erfindung weisen die Stirnseiten des Lichtleiters einen Ansatz zurAccording to a further preferred embodiment of the invention, the front sides of the light guide have a projection for

Aufnahme jeweils eines Endes eines mit einer Lichtquelle verbundenen Lichtleitkabels auf.Recording of one end of a fiber optic cable connected to a light source.

Dadurch ist es möglich, die Lichtquelle in einem Abstand zur Beleuchtungseinrichtung anzuordnen, so daß deren Wärmebelastung erheblich verringert wird. Dadurch ist es auch möglich, das Licht nur einer Lichtquelle in beide Lichteinkoppelflächen über zwei mit der Lichtquelle verbundene Lichtleiter oder einen zur Beleuchtungseinrichtung hin geteilten Lichtleiter einzukoppeln.This makes it possible to arrange the light source at a distance from the lighting device, so that its heat load is significantly reduced. This also makes it possible to couple the light from just one light source into both light coupling surfaces via two light guides connected to the light source or a light guide split towards the lighting device.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden ausführlichen Beschreibung und den beigefügten Zeichnungen, in denen bevorzugte Ausführungsformen der Erfindung beispielsweise veranschaulicht sind.Further details of the invention emerge from the following detailed description and the accompanying drawings, in which preferred embodiments of the invention are illustrated by way of example.

In den Zeichnungen zeigen:The drawings show:

Figur 1: Eine räumliche Darstellung einer Beleuchtungseinrichtung mit Blick auf die Lichtaustrittsfläche, Figure 1: A spatial representation of a lighting device with a view of the light-emitting surface,

Figur 2: eine räumliche Darstellung der Beleuchtungseinrichtung von Figur 1 mit Blick auf die Rückseite,Figure 2: a spatial representation of the lighting device of Figure 1 with a view to the rear,

Figur 3: eine Draufsicht auf die Beleuchtungseinrichtung von Figur 1,Figure 3: a plan view of the lighting device of Figure 1,

Figur 4: die Seitenansicht des Beleuchtungskörpers von Figur 3 aus Richtung IV,Figure 4: the side view of the lighting fixture of Figure 3 from direction IV,

Figur 5: eine Seitenansicht der Beleuchtungseinrichtung von Figur 3 aus Richtung V,Figure 5: a side view of the lighting device of Figure 3 from direction V,

Figur 6: die Beleuchtungseinrichtung von Figur 4 entlang der Linie VI - VI geschnitten, in vergrößerter Darstellung,Figure 6: the lighting device of Figure 4 cut along the line VI - VI, in an enlarged view,

Figur 7: die Beleuchtungseinrichtung von Figur 4 entlang der Linie VII - VII geschnitten, in vergrößerter Darstellung,Figure 7: the lighting device of Figure 4 cut along the line VII - VII, in an enlarged view,

Figur 8: die Beleuchtungseinrichtung von Figur 4 entlang der Linie VIII - VIII geschnitten, in vergrößerter Darstellung,Figure 8: the lighting device of Figure 4 cut along the line VIII - VIII, in an enlarged view,

Figur 9: die Beleuchtungseinrichtung von Figur 4, entlang der Linie IX - IX geschnitten,Figure 9: the lighting device of Figure 4, cut along the line IX - IX,

Figur 10: die Beleuchtungseinrichtung von Figur 3, entlang der Linie X-X geschnitten undFigure 10: the lighting device of Figure 3, cut along the line X-X and

Figur 11: eine Ansicht der Beleuchtungseinrichtung von Figur 10 aus Richtung XI ohne Kappe.Figure 11: a view of the lighting device of Figure 10 from direction XI without cap.

Eine Beleuchtungseinrichtung besteht im wesentlichen aus einem stabförmigen Lichtleiter (1) und einem Gehäuse (2).A lighting device essentially consists of a rod-shaped light guide (1) and a housing (2).

Der stabförmige Lichtleiter (1) weist an einem ersten Ende (3) eine quer zu seiner Längsrichtung angeordnete erste Stirnfläche (4) auf, die als Lichteinkoppelfläche {5) ausgebildet ist. Die erste Stirnfläche (4) weist einen ersten Ansatz (6) zur Aufnahme eines Endes {7) eines mit einer nicht dargestellten Lichtquelle verbundenen Lichtleitkabels (8) auf. An seinem dem ersten Ende (3) gegenüberliegenden zweiten Ende (9) weist der stabförmige Lichtleiter eine zweite Stirnfläche (10) auf, die als zweite Einkoppelfläche (11) ausgebildet ist. An der zweiten Stirnfläche (10) ist ein zweiter Ansatz (12) zur Aufnahme eines Endes (7') eines mit einer nicht dargestellten Lichtquelle verbundene Lichtleitkabels (8') angeordnet.The rod-shaped light guide (1) has a first end face (3) arranged transversely to its longitudinal direction, which is designed as a light coupling surface (5). The first end face (4) has a first attachment (6) for receiving an end (7) of a light guide cable (8) connected to a light source (not shown). At its second end (9) opposite the first end (3), the rod-shaped light guide has a second end face (10) which is designed as a second coupling surface (11). A second attachment (12) for receiving an end (7') of a light guide cable (8') connected to a light source (not shown) is arranged on the second end face (10).

Der stabförmige Lichtleiter (1) weist in Längsrichtung eine quer zu seiner Längsachse (13) abstrahlendeThe rod-shaped light guide (1) has a longitudinal beam radiating transversely to its longitudinal axis (13).

Lichtaustrittsfläche (14) auf. Auf der der LichtaustrittsflächeLight exit surface (14). On the light exit surface

(14) gegenüberliegenden Seite des stabförmigen Lichtleiters (1) ist eine reflektierende Fläche (15) angeordnet. Während die Lichtaustrittsfläche (14) im wesentlichen parallel zur Längsachse (13) verläuft, verringert sich der Abstand (16) zwischen Lichtaustrittsfläche (14) und reflektierender Fläche(14) opposite side of the rod-shaped light guide (1) a reflective surface (15) is arranged. While the light exit surface (14) runs essentially parallel to the longitudinal axis (13), the distance (16) between the light exit surface (14) and the reflective surface decreases

(15) von den Stirnflächen (4, 10) in Längsrichtung zur Mitte (17) hin. Auf seiner halben Länge (18) weist der stabförmige Lichtleiter (1) somit seinen minimalen Abstand (19) zwischen Lichtaustrittsfläche (14) und reflektierende Fläche (15) auf.(15) from the end faces (4, 10) in the longitudinal direction towards the center (17). At half its length (18), the rod-shaped light guide (1) thus has its minimum distance (19) between the light exit surface (14) and the reflecting surface (15).

Der stabförmige Lichtleiter (1) ist vorzugsweise als Prismenstab (20) ausgebildet, dessen reflektierende Fläche (15) quer zur Längsachse (13) eine Vielzahl lichtablenkender Prismen (21) aufweist. Der Prismenstab (20) ist als in Längsrichtung geschnittener Zylinderkörper ausgebildet, wobei die reflektierende Fläche (15) die Schnittfläche bildet. Damit weist der Prismenstab (20) einen etwa kreisabschnittsförmigen Querschnitt auf, dessen plane Seite der reflektierenden Fläche (15) zugeordnet ist.The rod-shaped light guide (1) is preferably designed as a prism rod (20), the reflecting surface (15) of which has a plurality of light-deflecting prisms (21) transversely to the longitudinal axis (13). The prism rod (20) is designed as a cylindrical body cut in the longitudinal direction, with the reflecting surface (15) forming the cut surface. The prism rod (20) therefore has an approximately circular cross-section, the flat side of which is assigned to the reflecting surface (15).

Der Prisnaenstab (20) wird zur vereinfachten Fertigung (2) von zwei spiegelsymmetrisch angeordneten Lichtleiterhälften (22) gebildet.The prism rod (20) is formed from two mirror-symmetrically arranged light guide halves (22) for simplified production (2).

Der stabförmige Lichtleiter (1) bzw. der Prismenstab (20) ist in dem Gehäuse (2) angeordnet. Das Gehäuse (2) weist eine der Lichtaustrittsfläche (14) benachbarte Lichtscheibe (23) auf. Die Lichtscheibe (23) ist in eine Anschlagplatte (24) des Gehäuses (2) integriert. Die Anschlagplatte (24) wirkt gegenüber einer Aufnahme (25) in einer Fahrzeuginnenwandung (26) als Blende. An der dem Prismenstab (20) zugewandten Innenseite (27) ist eine Gehäusewandung (28) angeordnet, in die der Prismenstab (20) einsetzbar ist. Die Gehäusewandung (28) ist durch eine aufsteckbare Kappe abdeckbar. In Längsrichtung wird die Gehäusewandung (28) von einander gegenüberliegenden Seitenwänden (30) gebildet. An den Seitenwänden (30) sind mitThe rod-shaped light guide (1) or the prism rod (20) is arranged in the housing (2). The housing (2) has a light disc (23) adjacent to the light exit surface (14). The light disc (23) is integrated into a stop plate (24) of the housing (2). The stop plate (24) acts as a cover in relation to a receptacle (25) in a vehicle interior wall (26). A housing wall (28) is arranged on the inner side (27) facing the prism rod (20), into which the prism rod (20) can be inserted. The housing wall (28) can be covered by a cap that can be attached. In the longitudinal direction, the housing wall (28) is formed by side walls (30) that are opposite one another. On the side walls (30) there are

der Aufnahme (25) verrastende, federnde Rastarme (31) angeordnet.Spring-loaded locking arms (31) are arranged on the holder (25).

Zwischen der Kappe (29) und dem Gehäuse (2) bzw. den Seitenwänden (30) der Gehäusewandung (28) sind Rastverbindungen (32) angeordnet. Die Rastverbindungen (32) werden von an den Seitenwänden (30) angeordneten Rastnasen (33) und entsprechenden Durchbrüchen (34) in der Kappe (29) gebildet, so daß die Rastnasen (33) bei der Montage der Kappe (29) in den Durchbrüchen einrasten.Between the cap (29) and the housing (2) or the side walls (30) of the housing wall (28) there are locking connections (32). The locking connections (32) are formed by locking lugs (33) arranged on the side walls (30) and corresponding openings (34) in the cap (29), so that the locking lugs (33) lock into the openings when the cap (29) is assembled.

Zur Montage, beispielsweise in einem nicht dargestellten Ablagefach, werden die beiden Lichtleiterhälften (22) in die Gehäusewandung (28) eingesetzt und die Enden (7, 1') der Lichtleitkabel (8, 8') werden in die Ansätze (6, 12) des Prismenstabes (20) eingesteckt. Das Gehäuse (2) wird mit der Kappe (29) verschlossen und in die Aufnahme (25) der Fahrzeuginnenwandung (26) selbstrastend eingesetzt.For installation, for example in a storage compartment (not shown), the two fiber optic halves (22) are inserted into the housing wall (28) and the ends (7, 1') of the fiber optic cables (8, 8') are inserted into the lugs (6, 12) of the prism rod (20). The housing (2) is closed with the cap (29) and inserted into the holder (25) of the vehicle's inner wall (26) in a self-locking manner.

Claims (10)

sprüchesayings 1. Beleuchtungseinrichtung, insbesondere für Kraftfahrzeuge, mit einem stabförmigen Lichtleiter, dessen quer zur Längsrichtung angeordnete erste Stirnfläche eine Lichteinkoppelfläche ist und der in Längsrichtung eine quer zur Längsrichtung abstrahlende Lichtaustrittsfläche aufweist, der gegenüberliegend eine reflektierende Fläche angeordnet ist, dadurch gekennzeichnet, daß der Lichtleiter (1) an seiner der ersten Stirnfläche (4) gegenüberliegenden Seite eine zweite als Lichteinkoppelfläche (11) ausgebildete Stirnfläche (10) aufweist, und daß der Abstand zwischen Lichtaustrittfsflache (14) und reflektierender Fläche (15) in Längsrichtung sich von den Stirnflächen (4, 10) zur Mitte (17) hin verringert.1. Lighting device, in particular for motor vehicles, with a rod-shaped light guide, the first end face of which is arranged transversely to the longitudinal direction and is a light coupling surface and which has a light exit surface radiating transversely to the longitudinal direction in the longitudinal direction, opposite which a reflecting surface is arranged, characterized in that the light guide (1) has a second end face (10) designed as a light coupling surface (11) on its side opposite the first end face (4), and that the distance between the light exit surface (14) and the reflecting surface (15) in the longitudinal direction decreases from the end faces (4, 10) towards the center (17). 2. Beleuchtungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der stabförmige Lichtleiter (1) ein Prismenstab (20) ist, dessen reflektierende Fläche (15) quer zur Längsachse (13) eine Vielzahl lichtablenkender Prismen (21) aufweist.2. Lighting device according to claim 1, characterized in that the rod-shaped light guide (1) is a prism rod (20) whose reflecting surface (15) has a plurality of light-deflecting prisms (21) transverse to the longitudinal axis (13). 3. Beleuchtungseinrichtung nach Anspruch (1) oder (2), dadurch gekennzeichnet, daß der stabförmige Lichtleiter (1) aus zwei spiegelsymmetrisch angeordneten Lichtleiterhälften (22) besteht.3. Lighting device according to claim (1) or (2), characterized in that the rod-shaped light guide (1) consists of two mirror-symmetrically arranged light guide halves (22). 4. Beleuchtungseinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Lichtleiter (1) einen etwa kreisabschnittförmigen Querschnitt aufweist, dessen plane Seite der reflektierenden Fläche (15) zugeordnet ist.4. Lighting device according to one of claims 1 to 3, characterized in that the light guide (1) has an approximately circular cross-section, the flat side of which is assigned to the reflecting surface (15). 5. Beleuchtungskörper nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stirnflächen {4, 10) einen Ansatz (6, 12) zur Aufnahme jeweils eines Endes (7, 1') eines mit einer Lichtquelle verbundenen Lichtleitkabels (8, 8') aufweisen.5. Lighting fixture according to one of claims 1 to 4, characterized in that the end faces (4, 10) have a projection (6, 12) for receiving one end (7, 1') of a light guide cable (8, 8') connected to a light source. 6. Beleuchtungseinrichtung nach einem der Ansprüche 1 bis 5/ dadurch gekennzeichnet, daß der Lichtleiter {1) in einem Gehäuse (2) angeordnet ist, in dem der Lichtaustrittsfläche (14) des Lichtleiters (1) eine Lichtscheibe (23) vorgelagert ist.6. Lighting device according to one of claims 1 to 5/ characterized in that the light guide (1) is arranged in a housing (2) in which a light disk (23) is arranged in front of the light exit surface (14) of the light guide (1). 7. Beleuchtungseinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das Gehäuse (2) an seiner der Lichtscheibe (23) abgewandten Rückseite mit einer Kappe (2 9) abdeckbar ist.7. Lighting device according to claim 6, characterized in that the housing (2) can be covered with a cap (29) on its rear side facing away from the lens (23). 8. Beleuchtungseinrichtung nach Anspruch (7), dadurch gekennzeichnet, daß zwischen Kappe (29) und Gehäuse (2) Rastverbindungen (32) angeordnet sind.8. Lighting device according to claim (7), characterized in that locking connections (32) are arranged between the cap (29) and the housing (2). 9. Beleuchtungseinrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß das Gehäuse (2) in eine Aufnahme (25) einer Fahrzeuginnenwandung (26) montierbar ist.9. Lighting device according to one of claims 6 to 8, characterized in that the housing (2) can be mounted in a receptacle (25) of an inner vehicle wall (26). 10. Beleuchtungseinrichtung nach Anspruch (9), dadurch gekennzeichnet, daß das Gehäuse (2) an seiner Kappe (29) in die Aufnahme (25) einrastende Rastarme (31) aufweist. C 10. Lighting device according to claim (9), characterized in that the housing (2) has locking arms (31) on its cap (29) which engage in the receptacle (25). C
DE29716013U 1997-09-06 1997-09-06 Lighting device Expired - Lifetime DE29716013U1 (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19803537A1 (en) * 1998-01-30 1999-08-05 Hella Kg Hueck & Co Light for vehicles
DE19803518A1 (en) * 1998-01-30 1999-08-05 Hella Kg Hueck & Co Rod-shaped light guide
DE19804440A1 (en) * 1998-02-05 1999-08-12 Hella Kg Hueck & Co Rod-shaped light guide
DE19806526A1 (en) * 1998-02-17 1999-08-19 Hella Kg Hueck & Co Lighting device for motor vehicles
DE19919296A1 (en) * 1999-04-28 2000-12-21 Hella Kg Hueck & Co Light for vehicles
DE19943255A1 (en) * 1999-09-10 2001-03-15 Hella Kg Hueck & Co Lamp unit for combined lamp module for automobile has light conductor incorporated in cover fitted over open front of lamp unit housing
DE10135478A1 (en) * 2001-07-20 2003-04-03 Hella Kg Hueck & Co Interior lighting unit for vehicle, comprises optical conductor with narrow optical coupling strip providing light exit opposite reflective surfaces
US6975805B2 (en) 2002-08-15 2005-12-13 Visteon Global Technologies, Inc. Light channel communication system
EP1890077A1 (en) 2006-08-15 2008-02-20 Hella KG Hueck & Co. Light guide for vehicle lighting device
DE102010026232A1 (en) 2010-07-06 2012-01-12 Volkswagen Ag Lamp for placement in strong vibration environment, for light arrangement of vehicle, has holding part and fixing part, where light-guiding element is clamped between holding part and fixing part
DE102012020712A1 (en) * 2012-10-23 2014-04-24 Volkswagen Aktiengesellschaft Illumination device for use in air nozzle of vehicle part, has light conductor connected with light linking surface, and malfunction unit i.e. optical prism, introduced opposite to light exit surface of surface section of light conductor
DE102015222092A1 (en) * 2015-11-10 2017-05-11 Osram Gmbh lamp
DE102008060353B4 (en) 2008-12-03 2021-08-19 Audi Ag Illuminated panel

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DE3542292A1 (en) * 1985-01-28 1986-07-31 Comind Spa Luminaire for a motor vehicle
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DE3434536A1 (en) * 1983-05-21 1986-03-20 Joachim Dipl.-Phys. 5020 Frechen Schick Optical waveguide system for example for the rear light groups of motor vehicles
DE3542292A1 (en) * 1985-01-28 1986-07-31 Comind Spa Luminaire for a motor vehicle
EP0515921A2 (en) * 1991-05-27 1992-12-02 Hella KG Hueck & Co. Interior lamp for vehicle
DE4129094A1 (en) * 1991-09-02 1993-03-04 Hella Kg Hueck & Co Signal lamp with extended light guides for motor vehicle - emits light from grouped multi-prismatic surfaces of parallel light guides into which light is coupled from LEDs
DE4228877A1 (en) * 1991-09-12 1993-03-18 Volkswagen Ag Vanity mirror with tubular lamp for motor vehicle - has multifaceted reflector at each end of light guide for broadening region illuminated by single lamp
US5584556A (en) * 1991-11-28 1996-12-17 Enplas Corporation Surface light source device
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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19803537A1 (en) * 1998-01-30 1999-08-05 Hella Kg Hueck & Co Light for vehicles
DE19803518A1 (en) * 1998-01-30 1999-08-05 Hella Kg Hueck & Co Rod-shaped light guide
DE19804440A1 (en) * 1998-02-05 1999-08-12 Hella Kg Hueck & Co Rod-shaped light guide
DE19806526A1 (en) * 1998-02-17 1999-08-19 Hella Kg Hueck & Co Lighting device for motor vehicles
EP1048893A3 (en) * 1999-04-28 2002-04-24 Hella KG Hueck & Co. Vehicle lamp
DE19919296A1 (en) * 1999-04-28 2000-12-21 Hella Kg Hueck & Co Light for vehicles
DE19943255A1 (en) * 1999-09-10 2001-03-15 Hella Kg Hueck & Co Lamp unit for combined lamp module for automobile has light conductor incorporated in cover fitted over open front of lamp unit housing
DE10135478A1 (en) * 2001-07-20 2003-04-03 Hella Kg Hueck & Co Interior lighting unit for vehicle, comprises optical conductor with narrow optical coupling strip providing light exit opposite reflective surfaces
DE10135478B4 (en) * 2001-07-20 2009-07-23 Hella Kgaa Hueck & Co. lighting device
US6975805B2 (en) 2002-08-15 2005-12-13 Visteon Global Technologies, Inc. Light channel communication system
EP1890077A1 (en) 2006-08-15 2008-02-20 Hella KG Hueck & Co. Light guide for vehicle lighting device
DE102008060353B4 (en) 2008-12-03 2021-08-19 Audi Ag Illuminated panel
DE102010026232A1 (en) 2010-07-06 2012-01-12 Volkswagen Ag Lamp for placement in strong vibration environment, for light arrangement of vehicle, has holding part and fixing part, where light-guiding element is clamped between holding part and fixing part
DE102012020712A1 (en) * 2012-10-23 2014-04-24 Volkswagen Aktiengesellschaft Illumination device for use in air nozzle of vehicle part, has light conductor connected with light linking surface, and malfunction unit i.e. optical prism, introduced opposite to light exit surface of surface section of light conductor
DE102015222092A1 (en) * 2015-11-10 2017-05-11 Osram Gmbh lamp

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