DE102010051306A1 - Illumination device for control element of e.g. switch in motor car, has scattering centers in which light is scattered transverse to radiation direction, and carrier whose surface exhibits reflection characteristics below light conductor - Google Patents
Illumination device for control element of e.g. switch in motor car, has scattering centers in which light is scattered transverse to radiation direction, and carrier whose surface exhibits reflection characteristics below light conductor Download PDFInfo
- Publication number
- DE102010051306A1 DE102010051306A1 DE102010051306A DE102010051306A DE102010051306A1 DE 102010051306 A1 DE102010051306 A1 DE 102010051306A1 DE 102010051306 A DE102010051306 A DE 102010051306A DE 102010051306 A DE102010051306 A DE 102010051306A DE 102010051306 A1 DE102010051306 A1 DE 102010051306A1
- Authority
- DE
- Germany
- Prior art keywords
- lighting device
- light
- circuit carrier
- light guide
- control element
- 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.)
- Ceased
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
-
- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/14—Arrangements of reflectors therein
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
- G09F2013/1804—Achieving homogeneous illumination
- G09F2013/1836—Achieving homogeneous illumination using a frame-like light source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
- G09F2013/184—Information to display
- G09F2013/185—Embossed marks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/036—Light emitting elements
- H01H2219/044—Edge lighting of layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/06—Reflector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/062—Light conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/07—Actuators transparent
Abstract
Description
Die Erfindung betrifft eine Beleuchtungsvorrichtung, insbesondere für ein Bedienelement in einem Kraftfahrzeug, mit einem Schaltungsträger, einem an dem Schaltungsträger anliegenden Lichtleiter, mit einer Lichtquelle, die Licht in eine Seitenfläche des Lichtleiters einkoppelt, wobei der Lichtleiter Streuzentren aufweist, an denen das eingestrahlte Licht transversal zur Einstrahlungsrichtung gestreut wird.The invention relates to a lighting device, in particular for a control element in a motor vehicle, comprising a circuit carrier, a voltage applied to the circuit substrate light guide, with a light source that couples light into a side surface of the light guide, wherein the light guide scattering centers, where the incident light transversely is scattered to the irradiation direction.
Ein bevorzugte Anwendung der Erfindung besteht darin, auf Bedienelementen, zum Beispiel Tastaturkappen, auf einfache Weise eine Symboldarstellung oder eine so genannte Koronabeleuchtung zu generieren. Als Koronabeleuchtung wird eine Leuchtdichtevariation auf einem Bedienelement bezeichnet, welche die Kontur des Bedienelementes nachzeichnet.A preferred application of the invention is to easily generate a symbol representation or a so-called corona illumination on operating elements, for example keyboard caps. As Koronabeleuchtung a luminance variation on a control is called, which traces the contour of the control.
Es ist bekannt, Leuchtdichtegradienten durch einen transversal auskoppelnden Lichtleiter zu generieren, welcher eine örtliche Variation der Aktivierung, also eine unterschiedliche Dichte der Streuzentren im seinem Inneren oder auf seiner Oberfläche aufweist. Ebenfalls bekannt ist es, auf einem Lichtleiter oder einem Blendenbauteil eine Symbol- oder Konturbedruckung vorzusehen.It is known to generate luminance gradients through a transversely decoupling optical waveguide which has a local variation of the activation, that is to say a different density of the scattering centers in its interior or on its surface. It is also known to provide a symbol or contour printing on a light guide or an aperture component.
Es stellte sich die Aufgabe, eine Beleuchtungsvorrichtung gemäß des Oberbegriffs auf besonders einfache und kostengünstige Weise so auszubilden, dass eine Symbol- oder Koronabeleuchtung auf einem Bedienelement erzeugbar ist.It has set itself the task of a lighting device according to the preamble in a particularly simple and cost-effective manner in such a way that a symbol or Koronabeleuchtung on a control element can be generated.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Oberfläche des Schaltungsträgers unterhalb des Lichtleiters örtlich variierende Reflexionseigenschaften aufweist.This object is achieved in that the surface of the circuit substrate below the light guide has locally varying reflection properties.
Das Licht, das den Lichtleiter in Richtung des Schaltungsträgers verlässt, wird in Abhängigkeit von dem örtlichen Reflexionsvermögen der Schaltungsträgeroberfläche an verschiedenen Stellen des Schaltungsträgers unterschiedlich stark reflektiert und erzeugt dadurch lokal unterschiedliche Leuchtdichten auf der zu beleuchtenden oder zu hinterleuchtenden Fläche. Hierdurch kann eine Koronabeleuchtung oder auch eine Symboldarstellung auf der Fläche erzeugt werden.The light which leaves the optical waveguide in the direction of the circuit carrier is reflected differently at different points of the circuit carrier depending on the local reflectivity of the circuit carrier surface and thereby generates locally different luminances on the surface to be illuminated or backlit. As a result, a corona illumination or a symbol representation can be generated on the surface.
Die Oberfläche des Schaltungsträgers unterhalb des Lichtleiters kann dazu vorteilhaft eine örtlich variierende Helligkeit aufweisen, etwa durch nebeneinander liegende hellere und dunklere Farbaufträge. Diese können beispielsweise durch eine Bedruckung mit weißen und schwarzen Druckfarben ausgebildet sein. Alternativ kann auch eine Bedruckung mit verschiedenen bunten Druckfarben vorgesehen sein.The surface of the circuit carrier below the light guide can advantageously have a locally varying brightness, for example by juxtaposed lighter and darker color jobs. These can be formed for example by printing with white and black printing inks. Alternatively, a printing with different colored inks can be provided.
Zur Verstärkung des von der Oberfläche des Schaltungsträgers reflektierten Lichtanteils können vorteilhaft auch hochglänzende oder verspiegelte Flächenabschnitte auf dem Schaltungsträger angeordnet werden.In order to amplify the light component reflected from the surface of the circuit carrier, mirror-polished or mirrored surface sections can advantageously also be arranged on the circuit carrier.
Die örtlich variierenden Reflexionseigenschaften der Schaltungsträgeroberfläche können vorzugsweise durch eine Beschichtung, eine Bedruckung, durch eine aufgebrachte Folie oder durch einen aufgetragenen Lack erzeugt werden. Besonders vorteilhaft ist es, einen Lack zu verwenden, der zugleich als Lötstopplack wirkt.The locally varying reflection properties of the circuit carrier surface can preferably be produced by a coating, a printing, by an applied film or by a paint applied. It is particularly advantageous to use a lacquer which also acts as a solder mask.
Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert. Die einzige Figur zeigt eine schematische Ansicht einer erfindungsgemäßen Beleuchtungsvorrichtung.In the following an embodiment of the invention will be explained in more detail with reference to the drawing. The single FIGURE shows a schematic view of a lighting device according to the invention.
Dargestellt ist eine Lichtquelle
Der Lichtleiter
Die Streuzentren
Das aus der oberen Hauptfläche
Das aus der unteren Hauptfläche
Dieser weitere Lichtanteil
Diese hier nicht im Detail dargestellte Beschichtung
Das so bewirkte örtlich variierende Reflexionsvermögen der Oberfläche des Schaltungsträgers
Der Schaltungsträger
Das Beleuchtungsvorrichtung ist besonders vorteilhaft zur Hinterleuchtung eines Betätigungselementes für eine mechanische oder elektromechanische Vorrichtung verwendbar, und kann insbesondere ein Bestandteil eines Schalters oder Tastschalters sein, der in einem Kraftfahrzeug zur Anwendung kommt.The lighting device can be used particularly advantageously for the backlighting of an actuating element for a mechanical or electromechanical device, and in particular can be a component of a switch or push-button switch which is used in a motor vehicle.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Schaltungsträgercircuit support
- 22
- Lichtleiteroptical fiber
- 33
- Lichtquellelight source
- 4a, 4b, 4c4a, 4b, 4c
- Licht(anteil)Light (pro)
- 55
- Streuzentrenscattering centers
- 66
- Beschichtungcoating
- 77
- Bedienelementoperating element
- 88th
- obere Hauptflächeupper main surface
- 99
- untere Hauptflächelower main surface
- 1010
- Seitenflächeside surface
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010051306A DE102010051306A1 (en) | 2010-11-12 | 2010-11-12 | Illumination device for control element of e.g. switch in motor car, has scattering centers in which light is scattered transverse to radiation direction, and carrier whose surface exhibits reflection characteristics below light conductor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010051306A DE102010051306A1 (en) | 2010-11-12 | 2010-11-12 | Illumination device for control element of e.g. switch in motor car, has scattering centers in which light is scattered transverse to radiation direction, and carrier whose surface exhibits reflection characteristics below light conductor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010051306A1 true DE102010051306A1 (en) | 2012-05-16 |
Family
ID=45998907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010051306A Ceased DE102010051306A1 (en) | 2010-11-12 | 2010-11-12 | Illumination device for control element of e.g. switch in motor car, has scattering centers in which light is scattered transverse to radiation direction, and carrier whose surface exhibits reflection characteristics below light conductor |
Country Status (1)
Country | Link |
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DE (1) | DE102010051306A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012218005A1 (en) * | 2012-10-02 | 2014-04-03 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance e.g. built-in stove, has illuminated front panel which is provided with light guide |
DE102013000365A1 (en) * | 2013-01-11 | 2014-07-17 | Audi Ag | Operating device i.e. touchpad, for use in motor vehicle, has transparent layer made from glass and comprising surface structures e.g. grooves or recesses, and local areas for causing decoupling of light from transparent layer |
US9694744B2 (en) | 2014-09-30 | 2017-07-04 | Continental Automotive Systems, Inc. | Flexible lighting system and component illuminated by the system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29514771U1 (en) * | 1995-09-14 | 1995-12-07 | Renic Anton | Illuminated display unit |
US20030079387A1 (en) * | 2001-10-26 | 2003-05-01 | Derose Anthony | Display signs and ornaments for holiday seasons |
DE202006017603U1 (en) * | 2006-11-16 | 2007-03-15 | Gira Giersiepen Gmbh & Co. Kg | Sensor-controlled operating button in particular for safety door, comprises lighting positioned at distance from illuminated symbols and light guiding element |
DE102007010328A1 (en) * | 2006-10-12 | 2008-04-17 | Trw Automotive Safety Systems Gmbh | Assembly for illuminated representation of a logo |
-
2010
- 2010-11-12 DE DE102010051306A patent/DE102010051306A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29514771U1 (en) * | 1995-09-14 | 1995-12-07 | Renic Anton | Illuminated display unit |
US20030079387A1 (en) * | 2001-10-26 | 2003-05-01 | Derose Anthony | Display signs and ornaments for holiday seasons |
DE102007010328A1 (en) * | 2006-10-12 | 2008-04-17 | Trw Automotive Safety Systems Gmbh | Assembly for illuminated representation of a logo |
DE202006017603U1 (en) * | 2006-11-16 | 2007-03-15 | Gira Giersiepen Gmbh & Co. Kg | Sensor-controlled operating button in particular for safety door, comprises lighting positioned at distance from illuminated symbols and light guiding element |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012218005A1 (en) * | 2012-10-02 | 2014-04-03 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance e.g. built-in stove, has illuminated front panel which is provided with light guide |
DE102013000365A1 (en) * | 2013-01-11 | 2014-07-17 | Audi Ag | Operating device i.e. touchpad, for use in motor vehicle, has transparent layer made from glass and comprising surface structures e.g. grooves or recesses, and local areas for causing decoupling of light from transparent layer |
DE102013000365B4 (en) * | 2013-01-11 | 2017-06-08 | Audi Ag | Operating element for a motor vehicle and motor vehicle |
US9694744B2 (en) | 2014-09-30 | 2017-07-04 | Continental Automotive Systems, Inc. | Flexible lighting system and component illuminated by the system |
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R163 | Identified publications notified | ||
R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: KOSTAL AUTOMOBIL ELEKTRIK GMBH & CO. KG, DE Free format text: FORMER OWNER: LEOPOLD KOSTAL GMBH & CO. KG, 58513 LUEDENSCHEID, DE |
|
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |