DE2310715A1 - DEVICE FOR ILLUMINATING SYMBOLS, IN PARTICULAR IN THE DASHBOARD OF A MOTOR VEHICLE - Google Patents
DEVICE FOR ILLUMINATING SYMBOLS, IN PARTICULAR IN THE DASHBOARD OF A MOTOR VEHICLEInfo
- Publication number
- DE2310715A1 DE2310715A1 DE19732310715 DE2310715A DE2310715A1 DE 2310715 A1 DE2310715 A1 DE 2310715A1 DE 19732310715 DE19732310715 DE 19732310715 DE 2310715 A DE2310715 A DE 2310715A DE 2310715 A1 DE2310715 A1 DE 2310715A1
- Authority
- DE
- Germany
- Prior art keywords
- guide rod
- light guide
- incandescent lamp
- light
- receptacle
- 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
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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- 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
- B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
- B60Q3/14—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting through the surface to be illuminated
-
- 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
-
- 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
-
- 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Description
Vorrichtung zur Beleuchtung von Symbolen, insbesondere im Armaturenbrett eines Kraftfahrzeuges Die Erfindung betrifft eine Vorrichtung zur Beleuchtung von einem oder mehreren Symbolen in einem Anzeigefeld, insbesondere im Armaturenbrett eines Kraftfahrzcuges, mit einem Lichtleitstab, welcher das von einer Glühlampe abgestrahlte Licht dem (den) Schaltsymbol(en) zuführt. Device for illuminating symbols, in particular in the dashboard of a motor vehicle The invention relates to a device for lighting one or more symbols in a display panel, especially in the dashboard of a Kraftfahrzcuges, with a light guide rod, which is that of an incandescent lamp supplies emitted light to the circuit symbol (s).
Diese Beleuchtungsart wird dann angewendet, wenn die Glühlampe nicht unmittelbar hinter dem Symbol angeordnet werden kann, oder wenn von einer Glühlampe aus gleichzeitig mehrere verteilt angeordnete Symbole beleuchtet werden müssen. Diese Voraussetzungen sind bei einem Anzeigefeld im Armaturenbrett eines Kraftfahrzeuges meistens gegeben. Das Anzeigefeld kann in diesem Falle auch einer Reihe von nebeneinander angeordneten Schaltern zugeordnet sein, wobei die Symbole in oder neben den Schalterbetätigungsorganen angeordnet sein können.This type of lighting is used when the incandescent lamp is not Can be placed immediately after the symbol, or if from an incandescent lamp several symbols arranged in a distributed manner have to be illuminated at the same time. These requirements apply to a display panel in the dashboard of a motor vehicle mostly given. In this case, the display field can also have a number of side by side arranged switches, the symbols in or next to the switch actuators can be arranged.
Bei den bekannten Vorrichtungen dieser Art weist der Lichtleitstab eine oder mehrere Lichteintrittsflächen auf, die so zu der in einer Fassung festgelegten Glühlampe ausgerichtet sind, daß der größte Teil des von der Glühlampe abgestrchlten Lichtes in den Lichtleitstab eintritt und von diesem auf die den zu beleuchtenden Symbolen zugeordneten Lichtaustrittsflächen verteilt wird. Aus den vorstehenden Ausführungen ist schon erkennbar, daß es bei dieser Vorrichtung auf die Zuordnung zwischen Glühlampe und Lichtleitstab ganz entscheidend ankommt. Da die Glühlampenfassung getrennt vom Lichtleitstab befestigt wird, ist diese Zuordnung nicht immer eindeutig, worunter die Lichtausbeute des abgestrahlten Lichtes zur Beleuchtung der Symbole leidet.In the known devices of this type, the light guide rod one or more light entry surfaces, which are thus fixed in a socket Incandescent lamp aligned so that most of the stripped from the incandescent lamp Light enters the light guide rod and from this on the to be illuminated symbols assigned light exit surfaces is distributed. the end the above statements can already be seen that it is with this device the assignment between the incandescent lamp and the light guide rod is crucial. Since the bulb socket is attached separately from the light guide rod, this assignment is not always clear what the luminous efficacy of the emitted light includes Illumination of symbols suffers.
Es ist Aufgabe der Erfindung, eine Vorrichtung der eingangs erwähnten Art so zu verbessern, das, die Zuordnung zwischen Glühlampe und den Lichteintrittsflächen des Lichtleitstabes absolut eindeutig ist und auch nach dem Auswechseln einer defekten Glühlampe in der gleichen Eindeutigkeit wiedergegeben ist.It is the object of the invention to provide a device of the type mentioned at the beginning Kind of improving that, the association between the incandescent lamp and the light entry surfaces of the light guide rod is absolutely clear and even after replacing a defective one Incandescent lamp is reproduced with the same clarity.
Dies wird dadurch erreicht, daß der Lichtleitstab selbst als Glühlampenfassung ausgebildet ist. Als zusätzlicher Vorteil kommt bei dieser Ausgestaltung hinzu, daß eine getrennte Glühlampenfassung mit den dazugehörigen Befestigungsmitteln eingespart werden kann. Im einzelnen ist die Ausgestaltung so, daß der Lichtleitstab eine Aufnahme für die Glühlampe aufweist, in der die Kontaktanschlüsse für diese Glühlampe festgelegt sind.This is achieved by using the light guide rod itself as an incandescent lamp socket is trained. An additional advantage of this design is that that saves a separate bulb socket with the associated fastening means can be. In detail, the design is such that the light guide rod has a receptacle for the incandescent lamp, in which the contact connections for this incandescent lamp are set are.
Eine große Lichteintrittsfläche fiir den Lichtleitstab bei optimaler Ausnützung des von der Glühlampe abgestrahlten Lichtes wird in Fortbildung des Erfindungsgedankens dadurch erreicht, daß die Glühlampe im Bereich des Glühfadens von einer erweiterten Aufnahme des Lichtleitstabes umgeben ist, die als Lichteintrittsfläche ausgebildet ist.A large light entry surface for the light guide rod with optimal Utilization of the light emitted by the incandescent lamp is a further development of the inventive concept achieved in that the incandescent lamp in the area of the filament of an expanded Recording of the light guide rod is surrounded, which is designed as a light entry surface is.
Die Anbringung der Kontaktanschlüsse der Glühlampenfassung am Lichtleitstab ist einfach dadurch gelöst, daß von der Aufnahme für die Glühlampe zwei Durchbrüche ausgehen, durch die Kontaktfedern mit Rastansätzen in die Aufnahme führt und darin festgelegt sind.The attachment of the contact connections of the bulb socket to the light guide rod is simply solved in that the receptacle for the incandescent lamp has two openings go out through the contact springs with locking lugs in the receptacle and are defined therein.
Die Lichtausbeute zur Beleuchtung der Symbole läßt sich dadurch noch verbessern, daß der Lichtleitstab in einer durch die Abdeckung mit den Symbol-Feldern und einer Einbauplatte gebildeten Kaiser angeordnet ist.The light output for illuminating the symbols can still be reduced improve that the light guide rod in one through the cover with the symbol fields and a mounting plate formed Kaiser is arranged.
Die Befestigung des Lichtleitstabes läßt sich dadurch vereinfachen, daß der Lichtleitstab mittels Rastelementen an der Abdeckung oder der Einbauplatte festgelegt ist.The attachment of the light guide rod can be simplified by that the light guide rod by means of locking elements on the cover or the mounting plate is fixed.
Der elektrische Anschluß der Glühlampe wird dadurch erleichtert, daß der die Kontaktanschlüsse aufnehmende Teil des Lichtleitstabes durch einen Durchbruch der Einbauplatte aus dieser Kammer geführt ist.The electrical connection of the incandescent lamp is facilitated by the fact that the part of the light guide rod that receives the contact connections through an opening the mounting plate is guided out of this chamber.
Die Erfindung wird anhand eines im Längsschnitt dargestellten Ausführungsbeispiels näher erläutert.The invention is based on an embodiment shown in longitudinal section explained in more detail.
In der Abdeckung 13 des Armaturenbrattes sind beim Ausführungsbeispiel in an sich bekannter Weise die drei Anzeigefelder 10, 11 und 12 mit Symbolen angeordnet. Diese Symbole können als getrennte Teile in die Aussparungen in der Abdeckung 13 eingeklipst werden.In the cover 13 of the dashboard are in the embodiment in a manner known per se, the three display fields 10, 11 and 12 are arranged with symbols. These symbols can be inserted as separate parts in the recesses in the cover 13 be clipped in.
Unmittelbar hinter dieser Abdeckung 13 ist zwischen den Seitenteilen 14 und 17 derselben sowie der Einbauplatte 15 der Lichtleitstab 20 angeordnet. Die Lichtaustrittsflächen liegen dabei unmittelbar hinter den Anzeigefenstern mit den eingesetzton Symbol trägern. Durch die Formgebung des Lichtleitstabes 20 wird das von der Glühlampe 25 abgestrahlte Licht auf alle drei Symbole aufgeteilt.Immediately behind this cover 13 is between the side parts 14 and 17 of the same and the mounting plate 15 of the light guide rod 20 are arranged. the Light exit areas are located directly behind the display windows with the used on symbol bearer. The shape of the light guide rod 20 is light emitted by the incandescent lamp 25 is divided into all three symbols.
Die Glühlampe 25 hat in der erweiterten Aufnahme 21, deren Wandungstoile als Lichteintrittsfläche wirken, stets eine definierte Zuordnung zum Lichtleitstab 20, da die Glühlampe 25 in der als Fassung ausgebildeten Aufnahme 22 des Lichtleitstabes 20 festgelegt ist, Die Kontaktfedern 23 und 24 sind über Durchbrüche des Lichtleitstabes 20 in die Aufnahme 22 eingeführt und dabei über federnde Rastlappen in an sich bekannter Weise darin festgehalten.The incandescent lamp 25 has, in the expanded receptacle 21, its wall material act as a light entry surface, always one defined assignment to the light guide rod 20, since the incandescent lamp 25 in the receptacle designed as a socket 22 of the light guide rod 20 is set, the contact springs 23 and 24 are over Breakthroughs in the light guide rod 20 introduced into the receptacle 22 and thereby over resilient latching tabs held therein in a manner known per se.
Damit der elektrische Anschluß erleichtert wird, ragt der als Fassung ausgebildete Teil des @ichtleitstabes 20 mit den festgelegten Kontaktfedern 23 und 24 durch den Durchbruch 16 in die Einbauplatte 15, die den Lichtleitstab 20 abdeckt.In order to facilitate the electrical connection, the protrudes as a socket trained part of @ichtleitstabes 20 with the fixed contact springs 23 and 24 through the opening 16 in the mounting plate 15, which covers the light guide rod 20.
Es ist einleuchtend, daß durch den Austausch der Glühlampe 25 die Zuordnung zwischen dieser und dem Lichtleitstab 20 nicht verändert wird. Der Lichtleitstab 20 selbst kann über Rastelemente in der durch die Abdeckung 13 und die Einbauplatte 15 gebildeten Kammer rastend befestigt werden und so in der richtigen Zuordnung zu den in der Abdeckung eingesetzten Symbolen gehalten werden.It is evident that by replacing the light bulb 25 the Assignment between this and the light guide rod 20 is not changed. The light guide rod 20 itself can be via locking elements in the cover 13 and the mounting plate 15 formed chamber can be fastened in a latching manner and so in the correct assignment to the symbols inserted in the cover.
Die Ausbildung des Lichtleitstabes 20 richtet sich nach der Anordnung der Symbole und die Aufnahme für die Glühlampe wird in den Bereich des Lichtleitstabes 20 gelegt, von dem aus eine günstige Lichtverteilung zu allen Lichtaustrittsflächen des Lichtleitstabes möglich ist.The formation of the light guide rod 20 depends on the arrangement the symbols and the receptacle for the light bulb is in the area of the light guide rod 20 placed, from which a favorable light distribution to all light exit surfaces of the light guide rod is possible.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732310715 DE2310715C3 (en) | 1973-03-03 | Device for illuminating symbols, in particular in the dashboard of a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732310715 DE2310715C3 (en) | 1973-03-03 | Device for illuminating symbols, in particular in the dashboard of a motor vehicle |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2310715A1 true DE2310715A1 (en) | 1974-09-19 |
DE2310715B2 DE2310715B2 (en) | 1977-06-16 |
DE2310715C3 DE2310715C3 (en) | 1978-02-09 |
Family
ID=
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729185A (en) * | 1985-01-30 | 1988-03-08 | Kabushiki Kaisha Toshiba | Display panel illumination device |
EP0633165A1 (en) * | 1993-07-06 | 1995-01-11 | Societe D'applications Generales D'electricite Et De Mecanique Sagem | Dashboard without light conduit |
FR2715362A1 (en) * | 1994-01-27 | 1995-07-28 | Jaeger | Indicator system, esp. for motor vehicle dashboard |
WO2010112191A1 (en) * | 2009-04-03 | 2010-10-07 | Johnson Controls Interiors Gmbh & Co. Kg | Lighting device |
DE102015008777A1 (en) * | 2015-07-04 | 2017-01-05 | Diehl Aerospace Gmbh | Luminaire and lighting system |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729185A (en) * | 1985-01-30 | 1988-03-08 | Kabushiki Kaisha Toshiba | Display panel illumination device |
EP0633165A1 (en) * | 1993-07-06 | 1995-01-11 | Societe D'applications Generales D'electricite Et De Mecanique Sagem | Dashboard without light conduit |
FR2707224A1 (en) * | 1993-07-06 | 1995-01-13 | Sagem | Dashboard without optical duct. |
FR2715362A1 (en) * | 1994-01-27 | 1995-07-28 | Jaeger | Indicator system, esp. for motor vehicle dashboard |
WO2010112191A1 (en) * | 2009-04-03 | 2010-10-07 | Johnson Controls Interiors Gmbh & Co. Kg | Lighting device |
US9016918B2 (en) | 2009-04-03 | 2015-04-28 | Johnson Controls Technology Company | Lighting device |
DE102015008777A1 (en) * | 2015-07-04 | 2017-01-05 | Diehl Aerospace Gmbh | Luminaire and lighting system |
DE102015008777B4 (en) * | 2015-07-04 | 2017-06-14 | Diehl Aerospace Gmbh | Luminaire and lighting system |
US10539304B2 (en) | 2015-07-04 | 2020-01-21 | Diehl Aerospace Gmbh | Light and lighting system |
Also Published As
Publication number | Publication date |
---|---|
DE2310715B2 (en) | 1977-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: SWF AUTO-ELECTRIC GMBH, 7120 BIETIGHEIM-BISSINGEN, |
|
8339 | Ceased/non-payment of the annual fee |