DE102009021354A1 - Illumination unit for vehicle, comprises light source and optical element, where light is emitted through optical element by light source, and light is partially focused, where optical element comprises diffractive optical structure - Google Patents
Illumination unit for vehicle, comprises light source and optical element, where light is emitted through optical element by light source, and light is partially focused, where optical element comprises diffractive optical structure Download PDFInfo
- Publication number
- DE102009021354A1 DE102009021354A1 DE102009021354A DE102009021354A DE102009021354A1 DE 102009021354 A1 DE102009021354 A1 DE 102009021354A1 DE 102009021354 A DE102009021354 A DE 102009021354A DE 102009021354 A DE102009021354 A DE 102009021354A DE 102009021354 A1 DE102009021354 A1 DE 102009021354A1
- Authority
- DE
- Germany
- Prior art keywords
- optical element
- light
- lighting unit
- light source
- diffractive optical
- 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.)
- Withdrawn
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 75
- 238000005286 illumination Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 description 7
- 230000005855 radiation Effects 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
Classifications
-
- 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
- F21S41/28—Cover glass
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
Abstract
Description
Die Erfindung betrifft eine Beleuchtungseinheit für ein Fahrzeug, umfassend wenigstens eine Lichtquelle und ein optisches Element, mittels welchem ein von der Lichtquelle abgestrahltes Licht zumindest teilweise fokussierbar ist, sowie ein in Abstrahlrichtung angeordnetes optisches Element mit einer bereichsweise ausgebildeten diffraktiven optischen Struktur.The Invention relates to a lighting unit for a vehicle, comprising at least one light source and an optical element, by means of which a light emitted by the light source at least is partially focusable, as well as arranged in the emission direction optical element with a partially formed diffractive optical structure.
Aus
der
Der Erfindung liegt die Aufgabe zugrunde, eine gegenüber dem Stand der Technik verbesserte Beleuchtungseinheit für ein Fahrzeug anzugeben.Of the Invention is based on the object, a relation to the Prior art improved lighting unit for a Indicate vehicle.
Die Aufgabe wird erfindungsgemäß durch die im Anspruch 1 angegebenen Merkmale gelöst.The The object is achieved by the in the claim 1 specified characteristics solved.
Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.advantageous Further developments of the invention are the subject of the dependent claims.
Die erfindungsgemäße Beleuchtungseinheit umfasst wenigstens eine Lichtquelle und bevorzugt ein Reflektorelement, mittels welchem ein von der Lichtquelle abgestrahltes Licht zumindest teilweise reflektierbar ist, sowie ein in Abstrahlrichtung angeordnetes optisches Element mit einer bereichsweise ausgebildeten diffraktiven optischen Struktur. Erfindungsgemäß ist die diffraktive optische Struktur derart ausgebildet, dass an einem definierbaren Ort innerhalb und/oder außerhalb der Beleuchtungseinheit mindestens eine dreidimensionale Form erzeugbar ist. Alternativ zum Reflektor kann auch eine Linse zur Strahlformung eingesetzt werden.The The lighting unit according to the invention comprises at least a light source and preferably a reflector element, by means of which a light emitted by the light source at least partially reflected light is, as well as arranged in the emission direction optical element with a partially formed diffractive optical structure. According to the invention, the diffractive optical structure designed such that at a definable location within and / or outside the lighting unit at least a three-dimensional Form is generated. Alternatively to the reflector can also be a lens be used for beam shaping.
Die Beleuchtungseinheit ist anhand der diffraktiven optischen Struktur in Gewinn bringender Weise individuell gestaltbar. Dabei kann die diffraktive optische Struktur eine Ausprägung der dreidimensionalen Form, insbesondere eines dreidimensionalen Objektes, enthalten, welches im Betrieb der Beleuchtungseinheit wiedergebbar ist. Beispielsweise kann es sich bei der dreidimensionalen Form um ein Markenzeichen und/oder ein Firmenlogo, z. B. des Fahrzeuges, handeln.The Lighting unit is based on the diffractive optical structure can be individually designed in a profitable way. It can the diffractive optical structure is an expression of the three-dimensional Form, in particular a three-dimensional object, contain, which is reproducible during operation of the lighting unit. For example, can the three-dimensional shape is a trademark and / or a company logo, z. B. of the vehicle, act.
Mit anderen Worten: Die ausgeprägte diffraktive Struktur weist eine derartinge Oberflächenstruktur und/oder Muster auf, die den gewünschten Lichteffekt erzeugt.With In other words: The pronounced diffractive structure points such a surface structure and / or pattern, which produces the desired lighting effect.
Auch ist es möglich, mittels der an dem optischen Element ausgebildeten diffraktiven optischen Struktur eine Abstrahlcharakteristik der Beleuchtungseinheit zu beeinflussen. Beispielsweise kann die diffraktive optische Struktur derart ausgebildet sein, dass die Beleuchtungseinheit eine asymmetrische Abstrahlcharakteristik aufweist.Also it is possible, by means of the formed on the optical element diffractive optical structure has a radiation characteristic of Lighting unit to influence. For example, the diffractive optical structure be formed such that the lighting unit has an asymmetrical emission characteristic.
Darüber hinaus kann durch die diffraktive optische Struktur eine Bautiefe der Beleuchtungseinheit bei Beibehaltung eines räumlichen Erscheinungsbildes reduziert werden.About that In addition, by the diffractive optical structure a depth the lighting unit while maintaining a spatial Appearance can be reduced.
In einer bevorzugten Ausführungsform ist die Beleuchtungseinheit eine Fahrzeug-Heckleuchte, insbesondere ein Rücklicht.In A preferred embodiment is the lighting unit a vehicle tail light, in particular a tail light.
Ausführungsbeispiele der Erfindung werden anhand von Zeichnungen näher dargestellt.embodiments The invention will be described in more detail with reference to drawings.
Dabei zeigen:there demonstrate:
Einander entsprechende Teile sind in den Figuren mit den gleichen Bezugszeichen versehen.each other corresponding parts are in the figures with the same reference numerals Mistake.
In
Die
Beleuchtungseinheit
Bei
der Beleuchtungseinheit
Die
Lichtquelle
Die
Lichtquelle
Das
Trägerelement
Auf
dem Trägerelement
Die
Beleuchtungseinheit
Die
diffraktiven optischen Strukturbereiche S1 bis Sn sind dabei als
diffraktive optische Elemente eingesetzt, die beispielsweise zur
Formung des von der Lichtquelle
In
dem vorliegenden Ausführungsbeispiel sind die diffraktiven
optischen Strukturbereiche S1 bis Sn an einer Innenseite I, also
an einer Strahlungseintrittsfläche, des optischen Elementes
Mittels
der diffraktiven optischen Strukturbereiche S1 bis Sn ist im Betrieb
der Beleuchtungseinheit
Die
Lichtquelle
Beispielsweise
enthält die diffraktive optische Struktur S eine Aufzeichnung
einer grafischen dreidimensionalen Form F, z. B. ein Objekt, wie
in den
Alternativ
dazu kann die dreidimensionale Form F anhand der diffraktiven optischen
Struktur S auch innerhalb der Beleuchtungseinheit
Dadurch,
dass die diffraktiven optische Strukturbereiche S1 bis Sn an der
Strahlungseintrittsfläche, der Innenseite I des optischen
Elementes
Darüber
hinaus ist es mittels der diffraktiven optischen Strukturbereiche
S1 bis Sn möglich, ein von der Lichtquelle
Ist
z. B. eine Weißlicht emittierende Diode als Lichtquelle
In
Durch
die erfindungsgemäße Beleuchtungseinheit
Darüber
hinaus ist es möglich, Beleuchtungseinheiten
- 11
- Beleuchtungseinheitlighting unit
- 1.11.1
- Trägerelementsupport element
- 1.21.2
- Lichtquellelight source
- 1.31.3
- Reflektorelementreflector element
- 1.41.4
- optisches Elementoptical element
- AA
- Außenseiteoutside
- FF
- dreidimensionale Formthree-dimensional shape
- II
- Innenseiteinside
- LL
- abgestrahltes Lichtradiated light
- RR
- Abstrahlrichtungradiation direction
- SS
- diffraktive optische Strukturdiffractive optical structure
- S1 bis SnS1 to Sn
- Strukturbereichstructure area
- LWLW
- Lichtwellenlight waves
- LW1LW1
- phasenmodulierte Lichtwellenphase-modulated light waves
- aa
- vorgebbarer erster Abstandspecifiable first distance
- bb
- vorgebbarer zweiter Abstandspecifiable second distance
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - US 6565247 B2 [0002] - US 6565247 B2 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009021354A DE102009021354A1 (en) | 2009-05-14 | 2009-05-14 | Illumination unit for vehicle, comprises light source and optical element, where light is emitted through optical element by light source, and light is partially focused, where optical element comprises diffractive optical structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009021354A DE102009021354A1 (en) | 2009-05-14 | 2009-05-14 | Illumination unit for vehicle, comprises light source and optical element, where light is emitted through optical element by light source, and light is partially focused, where optical element comprises diffractive optical structure |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009021354A1 true DE102009021354A1 (en) | 2009-12-31 |
Family
ID=41360860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009021354A Withdrawn DE102009021354A1 (en) | 2009-05-14 | 2009-05-14 | Illumination unit for vehicle, comprises light source and optical element, where light is emitted through optical element by light source, and light is partially focused, where optical element comprises diffractive optical structure |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009021354A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2372236A1 (en) * | 2010-03-23 | 2011-10-05 | Hella KGaA Hueck & Co. | Lens element for assembly in a headlamp of a vehicle |
EP2525138A1 (en) * | 2011-05-19 | 2012-11-21 | odelo GmbH | Motor vehicle lighting and method for its production |
DE102014204535A1 (en) * | 2014-03-12 | 2015-10-01 | Volkswagen Aktiengesellschaft | Taillight for a vehicle and method for generating a warning by means of a vehicle |
EP3453941A4 (en) * | 2017-07-07 | 2020-02-26 | Sato Light Industrial Co., Ltd. | Illuminating device |
EP3616994A1 (en) * | 2018-08-31 | 2020-03-04 | ZKW Group GmbH | Motor vehicle headlamp with diffractive optical elements |
DE102022100796A1 (en) | 2022-01-14 | 2023-07-20 | HELLA GmbH & Co. KGaA | Lighting device for the interior of a motor vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6565247B2 (en) | 2000-03-01 | 2003-05-20 | Robert Bosch Gmbh | Illumination device for vehicle |
-
2009
- 2009-05-14 DE DE102009021354A patent/DE102009021354A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6565247B2 (en) | 2000-03-01 | 2003-05-20 | Robert Bosch Gmbh | Illumination device for vehicle |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2372236A1 (en) * | 2010-03-23 | 2011-10-05 | Hella KGaA Hueck & Co. | Lens element for assembly in a headlamp of a vehicle |
EP2525138A1 (en) * | 2011-05-19 | 2012-11-21 | odelo GmbH | Motor vehicle lighting and method for its production |
DE102014204535A1 (en) * | 2014-03-12 | 2015-10-01 | Volkswagen Aktiengesellschaft | Taillight for a vehicle and method for generating a warning by means of a vehicle |
EP3453941A4 (en) * | 2017-07-07 | 2020-02-26 | Sato Light Industrial Co., Ltd. | Illuminating device |
EP3616994A1 (en) * | 2018-08-31 | 2020-03-04 | ZKW Group GmbH | Motor vehicle headlamp with diffractive optical elements |
WO2020043391A1 (en) * | 2018-08-31 | 2020-03-05 | Zkw Group Gmbh | Motor vehicle headlamp having diffractive optical elements |
DE102022100796A1 (en) | 2022-01-14 | 2023-07-20 | HELLA GmbH & Co. KGaA | Lighting device for the interior of a motor vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
R081 | Change of applicant/patentee |
Owner name: MOISEL, JOERG, DR.RER.NAT., DE Free format text: FORMER OWNER: DAIMLER AG, 70327 STUTTGART, DE Effective date: 20131112 |
|
R084 | Declaration of willingness to licence |
Effective date: 20140513 |
|
R005 | Application deemed withdrawn due to failure to request examination |