DE102018003109A1 - Lighting device for a vehicle - Google Patents
Lighting device for a vehicle Download PDFInfo
- Publication number
- DE102018003109A1 DE102018003109A1 DE102018003109.9A DE102018003109A DE102018003109A1 DE 102018003109 A1 DE102018003109 A1 DE 102018003109A1 DE 102018003109 A DE102018003109 A DE 102018003109A DE 102018003109 A1 DE102018003109 A1 DE 102018003109A1
- Authority
- DE
- Germany
- Prior art keywords
- imager
- light sources
- lighting device
- projection
- vehicle
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24-F21S41/28
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
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- 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
- B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
- B60Q2400/50—Projected symbol or information, e.g. onto the road or car body
Abstract
Die Erfindung betrifft eine Beleuchtungseinrichtung (1) für ein Fahrzeug mit mindestens zwei Lichtquellen (2, 3), insbesondere Halbleiterlichtquellen. Erfindungsgemäß ist in der Beleuchtungseinrichtung (1) zumindest ein Bildgeber (4) zur Darstellung von Projektionssymbolen (8) an einer durch eine Fahrbahnoberfläche gebildeten Projektionsfläche (7) angebracht, wobei die mindestens zwei Lichtquellen (2, 3) den Bildgeber (4) ausleuchten. The invention relates to a lighting device (1) for a vehicle with at least two light sources (2, 3), in particular semiconductor light sources. According to the invention, at least one image generator (4) for displaying projection symbols (8) is mounted on a projection surface (7) formed by a road surface in the illumination device (1), the at least two light sources (2, 3) illuminating the image generator (4).
Description
Die Erfindung betrifft eine Beleuchtungseinrichtung für ein Fahrzeug gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a lighting device for a vehicle according to the preamble of claim 1.
Aus der
Der Erfindung liegt die Aufgabe zu Grunde, eine gegenüber dem Stand der Technik verbesserte Beleuchtungseinrichtung für ein Fahrzeug anzugeben.The invention is based on the object of specifying an improved over the prior art lighting device for a vehicle.
Die Aufgabe wird erfindungsgemäß mit einer Beleuchtungseinrichtung gelöst, welche die im Anspruch 1 angegebenen Merkmale aufweist.The object is achieved with a lighting device having the features specified in claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Die Beleuchtungseinrichtung eines Fahrzeugs, welche beispielsweise zur Erzeugung eines Abblendlichts ausgebildet ist, weist mindestens zwei Lichtquellen, beispielsweise Leuchtdioden und/oder Laser, auf.The illumination device of a vehicle, which is designed, for example, to generate a low-beam light, has at least two light sources, for example light-emitting diodes and / or lasers.
Erfindungsgemäß umfasst die Beleuchtungseinrichtung einen Bildgeber, welcher zur Darstellung von Projektionssymbolen an einer durch eine Fahrbahnfläche gebildete Projektionsfläche ausgebildet ist, wobei die mindestens zwei Lichtquellen den Bildgeber ausleuchten.According to the invention, the illumination device comprises an imager, which is designed to display projection symbols on a projection surface formed by a road surface, wherein the at least two light sources illuminate the imager.
Der Bildgeber ist beispielsweise ein subtraktiver Bildgeber, z. B. ein so genanntes Digital Micromirror Device (kurz: DMD), ein so genanntes Liquid Crystal Display (kurz: LCD) oder ein so genannter Liquid Crystal on Silicon (kurz: LCoS). Bei subtraktiven Bildgebern wird eine Lichtverteilung durch Absorption des Lichts im Bildgeber erzeugt.For example, the imager is a subtractive imager, e.g. As a so-called Digital Micromirror Device (short: DMD), a so-called Liquid Crystal Display (short: LCD) or a so-called Liquid Crystal on Silicon (short: LCoS). In subtractive imagers, a light distribution is produced by absorption of the light in the imager.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, eine verbesserte Beleuchtungseinrichtung für ein Fahrzeug bereitzustellen, welche Symbolprojektionen mit höherer Energieeffizienz durch ein Herabsenken der Absorptionsrate bei subtraktiven Bildgebern ermöglicht.The advantages achieved by the invention are, in particular, to provide an improved lighting device for a vehicle, which allows symbol projections with higher energy efficiency by lowering the absorption rate at subtractive imagers.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand von Zeichnungen näher erläutert.Embodiments of the invention are explained in more detail below with reference to drawings.
Dabei zeigen:
-
1 schematisch eine Schnittdarstellung einer Seitenansicht einer Beleuchtungseinrichtung und -
2 schematisch eine Symbolprojektion auf einer Projektionsfläche.
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1 schematically a sectional view of a side view of a lighting device and -
2 schematically a symbol projection on a projection screen.
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided in all figures with the same reference numerals.
Die Lichtquellen
Die Lichtquellen
Der Bildgeber
Die Projektionsfläche
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Beleuchtungseinrichtunglighting device
- 22
- erste Lichtquellefirst light source
- 33
- zweite Lichtquellesecond light source
- 44
- Bildgeberimager
- 55
- erster Ausleuchtbereichfirst footprint
- 66
- zweiter Ausleuchtbereichsecond footprint
- 77
- Projektionsflächeprojection
- 88th
- Projektionssymbolprojection icon
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 2518397 A2 [0002]EP 2518397 A2 [0002]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018003109.9A DE102018003109A1 (en) | 2018-04-17 | 2018-04-17 | Lighting device for a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018003109.9A DE102018003109A1 (en) | 2018-04-17 | 2018-04-17 | Lighting device for a vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102018003109A1 true DE102018003109A1 (en) | 2018-10-25 |
Family
ID=63714301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018003109.9A Pending DE102018003109A1 (en) | 2018-04-17 | 2018-04-17 | Lighting device for a vehicle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102018003109A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2518397A2 (en) | 2011-04-27 | 2012-10-31 | Automotive Lighting Reutlingen GmbH | Light module of a motor vehicle for creating a spot distribution of a high beam light distribution and motor vehicle headlamp with such a module |
-
2018
- 2018-04-17 DE DE102018003109.9A patent/DE102018003109A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2518397A2 (en) | 2011-04-27 | 2012-10-31 | Automotive Lighting Reutlingen GmbH | Light module of a motor vehicle for creating a spot distribution of a high beam light distribution and motor vehicle headlamp with such a module |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R230 | Request for early publication | ||
R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: MERCEDES-BENZ GROUP AG, DE Free format text: FORMER OWNER: DAIMLER AG, 70327 STUTTGART, DE Owner name: DAIMLER AG, DE Free format text: FORMER OWNER: DAIMLER AG, 70327 STUTTGART, DE |
|
R081 | Change of applicant/patentee |
Owner name: MERCEDES-BENZ GROUP AG, DE Free format text: FORMER OWNER: DAIMLER AG, STUTTGART, DE |