EP3056800A3 - Lighting device for a motor vehicle - Google Patents

Lighting device for a motor vehicle Download PDF

Info

Publication number
EP3056800A3
EP3056800A3 EP16000183.0A EP16000183A EP3056800A3 EP 3056800 A3 EP3056800 A3 EP 3056800A3 EP 16000183 A EP16000183 A EP 16000183A EP 3056800 A3 EP3056800 A3 EP 3056800A3
Authority
EP
European Patent Office
Prior art keywords
laser light
motor vehicle
lighting device
optical element
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.)
Granted
Application number
EP16000183.0A
Other languages
German (de)
French (fr)
Other versions
EP3056800A2 (en
EP3056800B1 (en
Inventor
Friedrich-Uwe Tontsch
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Publication of EP3056800A2 publication Critical patent/EP3056800A2/en
Publication of EP3056800A3 publication Critical patent/EP3056800A3/en
Application granted granted Critical
Publication of EP3056800B1 publication Critical patent/EP3056800B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • 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
    • F21S41/16—Laser light sources
    • 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
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • 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 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Die Erfindung betrifft eine Beleuchtungseinrichtung (1) für ein Kraftfahrzeug, mit einer Laserlichtquelle (2, 2a-21) zum Ausstrahlen eines Laserlichtstrahls (3, 3a-31) und einem diffraktiven optischen Element (5, 5a-5f), von welchem zumindest ein Teilbereich (5ij, 6, 6') in einem Strahlgang (4, 4a-4l) des Laserlichtstrahls (3, 3a-3l) angeordnet ist, wobei das diffraktive optische Element (5, 5a-5f) gegenüber der Laserlichtquelle (2, 2a-2l) um eine Rotationsachse (A) drehbar angeordnet ist, sodass unterschiedliche Teilbereiche (5ij, 6, 6') des diffraktiven optischen Elements (5, 5a-5f) mit jeweils verschiedenen optischen Eigenschaften durch eine Rotation um die Rotationsachse (A) in den Strahlgang (4, 4a-4l) drehbar sind, um mit geringem mechanischen und elektronischen Aufwand eine flexible Beleuchtung zu erreichen.

Figure imgaf001
The invention relates to a lighting device (1) for a motor vehicle, comprising a laser light source (2, 2a-21) for emitting a laser light beam (3, 3a-31) and a diffractive optical element (5, 5a-5f), of which at least one Partial region (5 ij , 6, 6 ') in a beam path (4, 4a-4l) of the laser light beam (3, 3a-3l) is arranged, wherein the diffractive optical element (5, 5a-5f) relative to the laser light source (2, 2a-2l) is arranged to be rotatable about an axis of rotation (A) so that different partial regions (5 ij , 6, 6 ') of the diffractive optical element (5, 5a-5f), each having different optical properties, are rotated about the axis of rotation (A ) are rotatable in the beam path (4, 4a-4l) to achieve flexible illumination with little mechanical and electronic effort.
Figure imgaf001
EP16000183.0A 2015-02-10 2016-01-27 Lighting device for a motor vehicle Active EP3056800B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015001693.8A DE102015001693A1 (en) 2015-02-10 2015-02-10 Lighting device for a motor vehicle

Publications (3)

Publication Number Publication Date
EP3056800A2 EP3056800A2 (en) 2016-08-17
EP3056800A3 true EP3056800A3 (en) 2016-11-16
EP3056800B1 EP3056800B1 (en) 2019-12-18

Family

ID=55273116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16000183.0A Active EP3056800B1 (en) 2015-02-10 2016-01-27 Lighting device for a motor vehicle

Country Status (3)

Country Link
EP (1) EP3056800B1 (en)
DE (1) DE102015001693A1 (en)
ES (1) ES2767548T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6761600B2 (en) * 2017-01-05 2020-09-30 大日本印刷株式会社 Lighting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130334424A1 (en) * 2012-06-14 2013-12-19 GM Global Technology Operations LLC Night vision system for a motor vehicle
EP2719942A1 (en) * 2011-06-08 2014-04-16 Koito Manufacturing Co., Ltd. Optical unit
FR3009061A1 (en) * 2013-07-23 2015-01-30 Valeo Vision LIGHTING SYSTEM WITH IMPROVED DIFFUSED RADIATION SHAPING

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333370A1 (en) 2003-07-23 2005-02-24 Schott Ag Lighting device, lens and lens manufacturing
US8690406B2 (en) * 2008-11-21 2014-04-08 Koninklijke Philips N.V. Lighting device and method of generating output illumination
CN107107807B (en) * 2014-11-07 2021-03-19 大日本印刷株式会社 Lighting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2719942A1 (en) * 2011-06-08 2014-04-16 Koito Manufacturing Co., Ltd. Optical unit
US20130334424A1 (en) * 2012-06-14 2013-12-19 GM Global Technology Operations LLC Night vision system for a motor vehicle
FR3009061A1 (en) * 2013-07-23 2015-01-30 Valeo Vision LIGHTING SYSTEM WITH IMPROVED DIFFUSED RADIATION SHAPING

Also Published As

Publication number Publication date
EP3056800A2 (en) 2016-08-17
DE102015001693A1 (en) 2016-08-11
ES2767548T3 (en) 2020-06-17
EP3056800B1 (en) 2019-12-18

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