EP3382266B1 - Vorrichtung zur projektion eines lichtstrahls mit mechanischem betätigungsorgan, optisches modul und mit einer solchen vorrichtung ausgerüsteter scheinwerfer - Google Patents

Vorrichtung zur projektion eines lichtstrahls mit mechanischem betätigungsorgan, optisches modul und mit einer solchen vorrichtung ausgerüsteter scheinwerfer Download PDF

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Publication number
EP3382266B1
EP3382266B1 EP18163462.7A EP18163462A EP3382266B1 EP 3382266 B1 EP3382266 B1 EP 3382266B1 EP 18163462 A EP18163462 A EP 18163462A EP 3382266 B1 EP3382266 B1 EP 3382266B1
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EP
European Patent Office
Prior art keywords
light beam
light
mechanical actuator
optical axis
angle
Prior art date
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Application number
EP18163462.7A
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English (en)
French (fr)
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EP3382266A1 (de
Inventor
Marine Courcier
Benoit Reiss
Jean-Paul Ravier
Vanesa Sanchez
Baptiste BOUISSOU
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Valeo Vision SAS
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Valeo Vision SAS
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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
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • 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]
    • 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]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • 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
    • F21S41/25—Projection lenses
    • 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
    • F21S41/60—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
    • 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
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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]

Definitions

  • the invention also relates to a motor vehicle headlight provided with such an optical module.
  • the displacement follows a periodic function substantially in time slots.
  • the upper 16 and lower plates 17 of the slots correspond to the holding time in each of the two extreme positions, and the slopes 18 each joining a high plate 16 to a low plate 17 correspond to the transition time.
  • the hold time lasts about four times longer than the hold time. transition.
  • the holding time is at least four times longer than the transition time, preferably at least twenty times, more preferably at least fifty times.
  • the angle of resolution of the shadow area is reduced to 0.5 °.
  • the shadow zones 21 can only appear on certain components with a resolution angle of 0.5 °, an additional component always being on. More precisely, only one component of a resolution angle of 0.5 ° out of two of the beam can appear extinct.
  • the mechanical actuator 5 is configured to periodically move the source assembly 2 between an intermediate position and another position at choose from two extreme positions opposite to the intermediate position.
  • the periodic displacement between the intermediate position and the first extreme position makes it possible to reveal a shadow zone with a resolution angle of 0.5 ° on the beam with an inactive light source.
  • the periodic displacement between the intermediate position and the second extreme position makes it possible to reveal an additional shadow zone with a resolution angle of 0.5 ° on the beam with the same inactive light source. Consequently, the axis of the beam is periodically oriented between an intermediate direction and a second direction chosen from two extreme directions corresponding to the movement of the source element 2.
  • the device 1 comprises a mirror 9 configured to reflect the light beam coming from the source assembly 2 towards the projection lens 3.
  • the mechanical actuator 5 moves the mirror 9, either in translation when the mirror 9 is the only one element to be moved, either in rotation when it moves together with the source assembly 2.
  • the description presents examples of the invention of a resolution angle divided by two.
  • the device could be adapted so as to further divide the beam resolution angle.
  • the actuator 5 is configured to periodically move at least one of the elements of the device 1 to three positions.
  • the frequency of displacement of the beam is therefore chosen so that the displacement is not perceptible to an observer. In the three-directional example, the frequency is at least 60Hz.

Landscapes

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

Claims (16)

  1. Vorrichtung zum Projizieren eines Lichtstrahls mit einem mechanischen Stellglied, insbesondere für ein Kraftfahrzeug, umfassend eine Anordnung von Lichtquellen (2), die in der Lage sind, Lichtstrahlen zum Bilden des Lichtstrahls (13) entlang einer optischen Achse (4) auszusenden, wobei jede Lichtquelle (2) eine Komponente (10) des Lichtstrahls (13) definiert, die einen in einer Ebene definierten Auflösungswinkel aufweist, ferner umfassend ein mechanisches Stellglied (5), das konfiguriert ist, um mindestens ein Element der Vorrichtung so zu bewegen, dass die optische Achse (4) des Lichtstrahls (13) zwischen mindestens zwei Projektionsrichtungen bewegt wird,
    dadurch gekennzeichnet, dass die optische Achse des Lichtstrahls in einer periodischen oszillierenden Bewegung mit einer vorbestimmten Verschiebungsfrequenz bewegt wird,
    und dass die Projektionsrichtungen zwischen sich einen im Wesentlichen koplanaren Verschiebungswinkel des Auflösungswinkels bilden, wobei der Verschiebungswinkel gleich einem Bruchteil des Auflösungswinkels des Strahls ist.
  2. Die Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Verschiebungswinkel im Wesentlichen gleich der Hälfte des Auflösungswinkels ist.
  3. Die Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das mechanische Stellglied (5) konfiguriert ist, um das Element so zu bewegen, dass die Verschiebungsfrequenz der optischen Achse (4) eine für das menschliche Auge nicht wahrnehmbare Frequenz ist.
  4. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das mechanische Stellglied (5) konfiguriert ist, um das Element diskontinuierlich so zu bewegen, dass die optische Achse (4) des Lichtstrahls (13) in jeder Projektionsrichtung für eine Haltezeit gehalten wird, die größer ist als die Übergangszeit zwischen den beiden Projektionsrichtungen.
  5. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Lichtquellen (2) mit einer definierten Aktivierungsfrequenz einzeln aktivierbar sind, um den projizierten Lichtstrahl (13) so zu modulieren, dass ein beweglicher Schattenbereich (21) im Lichtstrahl (13) entsteht.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Aktivierungsfrequenz der Lichtquellen (2) und die Verschiebungsfrequenz der optischen Achse (4) synchronisiert sind.
  7. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sie ein optisches System umfasst, das konfiguriert ist, um den Lichtstrahl (13) teilweise aus den Lichtstrahlen der Lichtquellen (2) zu bilden.
  8. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Lichtquellenanordnung (2) eine Matrix von lichtemittierenden Dioden ist.
  9. Vorrichtung nach einem der vorstehenden Ansprüche, umfassend Projektionslinsenmittel (3), wobei die Projektionslinsenmittel (3) in der Lage sind, den Lichtstrahl (13) teilweise zu bilden.
  10. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das mechanische Stellglied (5) in der Lage ist, die Anordnung von Lichtquellen (2) translatorisch zu verschieben.
  11. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das mechanische Stellglied (5) in der Lage ist, die Anordnung von Lichtquellen (2) zu drehen.
  12. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das mechanische Stellglied (5) sowohl die Projektionslinsenmittel (3) als auch die Anordnung von Lichtquellen (2) drehen kann.
  13. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das mechanische Stellglied (5) angepasst ist, um die Projektionslinsenmittel (3) translatorisch zu verschieben.
  14. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sie einen Spiegel (9) umfasst, der konfiguriert ist, um den Lichtstrahl (13) zu reflektieren, wobei das mechanische Stellglied (5) den Spiegel (9) bewegen kann.
  15. Optisches Modul (8), umfassend eine Vorrichtung zum Projizieren eines Lichtstrahls mit einem mechanischen Stellglied gemäß einem der vorstehenden Ansprüche.
  16. Kraftfahrzeugscheinwerfer mit einem optischen Modul (8) nach dem vorherigen Anspruch.
EP18163462.7A 2017-03-31 2018-03-22 Vorrichtung zur projektion eines lichtstrahls mit mechanischem betätigungsorgan, optisches modul und mit einer solchen vorrichtung ausgerüsteter scheinwerfer Active EP3382266B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1752808A FR3064720B1 (fr) 2017-03-31 2017-03-31 Dispositif de projection de faisceau lumineux a actionneur mecanique, module optique et projecteur muni d'un tel dispositif.

Publications (2)

Publication Number Publication Date
EP3382266A1 EP3382266A1 (de) 2018-10-03
EP3382266B1 true EP3382266B1 (de) 2019-12-18

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Country Status (5)

Country Link
US (1) US10408410B2 (de)
EP (1) EP3382266B1 (de)
JP (1) JP2018174138A (de)
CN (1) CN108692276B (de)
FR (1) FR3064720B1 (de)

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EP3913280A1 (de) * 2020-05-19 2021-11-24 ZKW Group GmbH Kraftfahrzeugscheinwerfer
DE102021101279A1 (de) 2021-01-21 2022-07-21 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für ein Kraftfahrzeug, insbesondere Scheinwerfer
CN113048440A (zh) * 2021-04-16 2021-06-29 张其建 一种没有炫目感的汽车远近光大灯
US12085252B2 (en) 2022-06-29 2024-09-10 Docter Optics Se Motor vehicle
CN116677948B (zh) * 2023-08-03 2024-01-12 常州星宇车灯股份有限公司 汽车照明场景的实现方法

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Also Published As

Publication number Publication date
FR3064720B1 (fr) 2019-04-05
FR3064720A1 (fr) 2018-10-05
JP2018174138A (ja) 2018-11-08
CN108692276A (zh) 2018-10-23
CN108692276B (zh) 2020-12-29
US20180283641A1 (en) 2018-10-04
US10408410B2 (en) 2019-09-10
EP3382266A1 (de) 2018-10-03

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