EP3350506B1 - Lichtstrahlprojektionsvorrichtung eines kraftfahrzeugs und kraftfahrzeugscheinwerfer mit dieser vorrichtung - Google Patents

Lichtstrahlprojektionsvorrichtung eines kraftfahrzeugs und kraftfahrzeugscheinwerfer mit dieser vorrichtung Download PDF

Info

Publication number
EP3350506B1
EP3350506B1 EP16770716.5A EP16770716A EP3350506B1 EP 3350506 B1 EP3350506 B1 EP 3350506B1 EP 16770716 A EP16770716 A EP 16770716A EP 3350506 B1 EP3350506 B1 EP 3350506B1
Authority
EP
European Patent Office
Prior art keywords
light
optical
digital screen
light source
light rays
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.)
Active
Application number
EP16770716.5A
Other languages
English (en)
French (fr)
Other versions
EP3350506A1 (de
Inventor
Pierre Albou
Marine Courcier
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.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP3350506A1 publication Critical patent/EP3350506A1/de
Application granted granted Critical
Publication of EP3350506B1 publication Critical patent/EP3350506B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F21S41/10—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
    • F21S41/25—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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • 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

Definitions

  • the present invention relates to a light beam projection device with a digital screen for a motor vehicle, and a light beam projector for automobile lighting, of the low beam or main beam type, provided with such a projection device.
  • Motor vehicle headlights are provided with several elements arranged in a housing so as to obtain a light beam at the exit of the headlight.
  • the elements of the housing comprise in particular a light source, for example one (or more) light-emitting diode(s), which emits light rays, and projection means capable of forming a light beam from light rays coming from the light source, for example consisting of the combination of a reflector placed near the light source and a lens at the exit of the projector.
  • the function of the reflector is to concentrate and direct the light rays coming from the light source to direct them towards the lens, which ends up forming the light beam for the projector.
  • the projection means can alternatively include only reflectors or only lenses.
  • projectors use mechanical means that move certain elements of the projector, or the entire projector, to change the direction of the light beam.
  • a second function concerns the possibility of producing adaptive lighting beams (or ADB, acronym for Adaptive Driving Beam in English), depending on traffic conditions and in particular of creating dark tunnels to isolate crossed vehicles in the projected beam. or tracking, so as not to dazzle them (anti-glare high beam function, also known by the acronym GFHB for Glare-Free High Beam).
  • ADB acronym for Adaptive Driving Beam in English
  • Micro-mirror array technology is particularly interesting today because it is technically mature and has a relatively affordable cost for use in automotive lighting, and makes it possible to develop a compact and precise lighting system, with a high number of pixels.
  • the invention therefore aims firstly to obtain a headlight configured to project a light beam which can be modified depending on the trajectory of the vehicle or the circumstances of driving (adaptive beam), and which does not use imposing mechanical means. or with significant travel to make these modifications.
  • the invention aims to make it possible to produce in a simple manner a high-performance projector (with good efficiency) using a digital screen of micro-mirror matrix type, by effectively exploiting the light sources.
  • the invention relates to a device for projecting a light beam from a motor vehicle, as defined in independent claim 1.
  • Said projection device comprises at least one light source capable of emitting light rays, an optical projection system with an exit pupil located on an optical exit element, projection system capable of projecting a light beam.
  • the projection device is remarkable in that it comprises a digital screen configured to direct at least part of the incident light rays emitted by the source towards said optical projection system, the device further comprising means for focusing the light rays emitted by at least one light source on an area of the digital screen, and an intermediate assembly for projecting the light rays coming from the digital screen configured to illuminate the surface of said exit pupil.
  • the focusing means concentrate the light rays emitted by the source on an area of the digital screen, which acts like a mirror in order to direct them towards the optical projection system.
  • the digital screen makes it possible to control the apparent dimensions and orientation as well as the structure of the light beam by activating or deactivating pixels corresponding to a subdivision of its surface into elements capable of sending the light which reaches them outside the optical system projection comprising an optical output element, thus extinguishing a zone of the beam.
  • the invention makes it possible, on the one hand, to do without mechanical means with long clearance, and on the other hand to effectively use a digital screen thanks to the means of focusing the light rays on an area of the digital screen and the The intermediate projection assembly which produces an anamorphosis of the surface of the digital screen on the exit pupil of the optical projection system.
  • the invention also relates to a motor vehicle headlight comprising such a projection device.
  • the figure 1 partially illustrates the device according to the invention, the intermediate projection assembly not being shown. The latter is visible on the figure 2 , 5 and 6 .
  • the light beam projection device 1 comprises at least one light source 2 capable of emitting light rays.
  • the embodiment shown on the figure 1 has a single source 2 of light, and the embodiments represented on the figures 2 And 6 have three light sources 2 arranged next to each other.
  • the light source(s) 2 are arranged on a support 25.
  • the light source(s) 2 are formed of at least one light-emitting diode (LED) arranged on the support 25.
  • LED light-emitting diode
  • the light source(s) 2 is formed of at least one light-emitting diode (LED) arranged on the support 25.
  • LED light-emitting diode
  • it is a set of light sources, a set of the type multi-chip light-emitting diode, that is to say a single electronic component comprising several light-emitting emitters.
  • the light source 2 associates a laser source with at least one light-emitting diode.
  • the laser source is directed towards the diode placed on the support.
  • the diode also includes an upper wavelength conversion layer, for example of phosphor, to diffuse part of the laser light and convert another part to an appropriate color.
  • the laser source transmits additional light to the conversion element which adds to the amount of light coming from the diode without changing the dimensions or characteristics of the light source.
  • the light source 2 comprises only one or more laser sources or laser diodes.
  • the laser source 2 is either placed on the support 25, or at a distance from the support 25 and directed towards the latter.
  • the laser source is placed in place of the light-emitting diode.
  • the support 25 is provided with a radiation wavelength conversion element to convert the light rays into the desired color.
  • a plate of phosphor material can be used as support 25.
  • the plate of phosphor material can be used in transmission or reflection. In transmission, the laser passes through the plate, and in reflection the laser is reflected by the plate.
  • the laser diode and the plate are therefore arranged in a location corresponding to this type of use, that is to say above or below.
  • the light source is a combination of light-emitting diodes and laser diodes.
  • the diode(s) illuminating more specifically the central part of the digital screen 4 are one or more laser diodes and the diodes illuminating the periphery of the digital screen are light-emitting diodes.
  • light sources of the semiconductor optoelectronic component type such as light-emitting diodes or laser diodes
  • a Xenon source not only do they not emit infrared radiation likely to heat the digital screen and cause it to malfunction, but in addition they emit in a Lambertian half-space (while the Xenon source emits in all directions) and therefore generate a much smaller footprint of the focusing means for direct the light flux emitted by these sources onto the digital screen.
  • the light beam projection device 1 comprises an optical projection system comprising an optical output element, which here is an output lens 3.
  • This optical projection system is capable of projecting a light beam, at the output of a module projection or a projector for example.
  • the light rays emitted by the light source(s) 2 are deflected to form a beam corresponding to a low beam, high beam type beam or any other desired beam.
  • the optical projection system projects the beam around an optical projection axis 7.
  • the device 1 further comprises means 5 for focusing the light rays emitted by the light source 2 on the digital screen 4 around an optical axis of illumination 8.
  • the use of focusing means instead of means of collimation of the light emitted by the light source(s) on the digital screen 4 advantageously makes it possible to generate a variable (non-uniform) light intensity distribution on said digital screen 4, with a zone of maximum intensity M in the beam. This greatly improves the efficiency of the device with the aim of producing an automobile lighting beam.
  • the projection device 1 further comprises a digital screen 4 configured to direct towards the projection system at least part of the incident light rays emitted by the source 2.
  • the digital screen 4 is formed of individually controlled pixels . Each pixel is configured to either allow incident light rays to reach the projection optical system or prevent them from reaching the projection optical system.
  • FIG. 3 represents an example of the shape of the incident beam 10 on the digital screen 4 coming from the light source(s)2, and the figures 4 (a), (b) and (c) show three examples of beam shape returned 11, 12, 13 by the digital screen from the incident beam 10 of the Figure 3 .
  • the incident light beam 10 has an enlarged shape in the horizontal plane corresponding to the plane in which it is desired to modify the orientation of the beam projected onto the road, with a zone of maximum intensity M.
  • the digital screen 4 allows you to select part of the incident beam by activation of part of the pixels.
  • the beam returned by the digital screen 4 therefore has a different orientation depending on the selection made, as shown in the examples of figures 4(a), 4(b) and 4(c) .
  • the reflected beam 11 is oriented towards the left
  • the beam 12 of the figure 4(b) is centered and corresponds to a default main beam
  • beam 13 of the figure 4(c) is oriented to the right, the position of the zone of maximum intensity M varying depending on the orientation.
  • the digital screen 4 is a matrix of micro-mirrors (also known by the acronym DMD, for English Digital Micromirror Device) which directs light rays by reflection.
  • the light rays are reflected in two possible directions: either towards the optical projection system and the output lens 3 around the optical projection axis 7, to form the beam projected by the projection device 1, or in a different direction of the projection optical system and the output lens 3.
  • each micro mirror can pivot between two fixed positions, a first position in which the light rays are reflected towards the optical projection system, and the output lens 3, and a second position in which the light rays are reflected in a direction different from the optical projection system, and the output lens 3.
  • the two fixed positions are oriented in the same way for all the micro-mirrors and form, relative to a reference plane supporting the matrix of micro mirrors, a characteristic angle ⁇ of the micro-mirror array, defined in its specifications. This angle ⁇ is generally less than 20° and is usually worth around 12°.
  • each micro-mirror reflecting a small part of the light rays incident on the matrix actuating the change of position makes it possible to modify the shape of the beam emitted by the optical projection system and ultimately the output lens 3.
  • the rays light returned by the micro-mirrors towards the optical projection system participate in the beam projected by the projection device 1. And the light rays returned by the micro-mirrors in a different direction do not participate in the projected beam. From the incident beam 10 of the Figure 3 , we can select only part of the beam to reflect it towards the optical projection system, said part corresponding for example to one of those of the figures 4 .
  • the micro-mirror matrix and the light source(s) 2 are arranged so that the half-opening angle ⁇ of the light rays incident on the digital screen 4 is at most equal to twice the characteristic angle ⁇ micro-mirrors of the digital screen 4.
  • the half-opening angle ⁇ of the light rays reflected towards the optical projection system is also less than twice the characteristic angle ⁇ of the digital screen 4 when the micro-mirrors are in the first position.
  • the opening angle of the incident light rays is defined relative to the optical axis of illumination 8, and the opening angle of the reflected light rays is defined relative to the optical axis of projection 7.
  • the optical axis of illumination 8 and the optical axis of projection 7 form an angle greater than or equal to 2 ⁇ between them.
  • the focusing means 5 focus the light rays on a zone 6 of the digital screen 4.
  • the light rays are concentrated on a reduced zone 6 of the digital screen 4 to guarantee a sufficiently powerful beam emitted by the device 1 while remaining compact.
  • the projection device 1 it is possible to use a digital screen in association with projection means to form a low beam or high beam type beam with dynamic turning or anti-glare functions. .
  • the focusing means 5 are configured to form an enlarged image on the digital screen 4.
  • the magnification will be a factor of 3 to 5
  • the magnification will be between a factor of 1,1 and 2.
  • the focusing means are a substantially elliptical reflector, the light source 2 being arranged at a first optical focus of said reflector and the digital screen 4 being arranged at a second optical focus of said reflector.
  • the light source 2 being arranged at a first optical focus of said reflector
  • the digital screen 4 being arranged at a second optical focus of said reflector.
  • each light source or set of sources is arranged to illuminate a substantially distinct area of the digital screen.
  • the device 1 comprises several light sources or set of light sources 2, the first focusing means comprising an elliptical reflector or a reflector cavity associated with each light source 2, each set of light source 2 and reflector or cavity of reflector being configured to illuminate a zone substantially distinct from the digital screen 4.
  • the optical projection system consists of a single optical output element.
  • the device 1 is provided with an intermediate projection assembly 9 of the light rays reflected by the digital screen 4 towards the optical projection system, and in particular the optical output element, here constituted by an output lens 3, as shown on the figures 2 , 5 and 6 .
  • the intermediate projection assembly 9 is advantageously configured to project the light rays coming from the digital screen 4 so as to illuminate substantially the entire surface of the exit pupil of the optical projection system, this exit pupil being located on the optical output element.
  • the device remains compact because it is possible to have a projection system comprising an optical output element, in particular an output lens 3 sufficiently close to the digital screen 4 without loss of light, the intermediate projection assembly 9 having the function of adapting the orientation of the rays reflected by the screen 4 to the dimensions of the optical output element, and in particular of the pupil of output of the optical system carried by said optical output element.
  • This intermediate projection assembly comprises at least one lens and at most three lenses. Preferably, it includes two lenses.
  • the intermediate projection assembly comprises a first lens 15 and a second lens 14.
  • the first lens 15 is convergent at least along one plane.
  • These lenses of the intermediate assembly 9 can be cylindrical or toroidal.
  • the second lens 14 can be cut transversely.
  • the first lens 15 is positioned near the digital screen 4, at a distance less than 10 mm, while the second lens 14 is close to the output lens 3, also at a distance less than 10 mm.
  • the two lenses 14,15 of the intermediate assembly 9 are configured to spread the light rays substantially over the entire width and height of the exit pupil, so that the exit face of the optical exit element , here the exit lens 3, appears entirely or almost entirely illuminated for an observer placed in the optical axis and looking at said exit face.
  • substantially we mean here 100% of the dimension, +-5%.
  • the shape of the light rays returned by the digital screen 4 is adapted to the dimensions of the optical output element, here the output lens 3, in order to maintain a compact device. This also ensures optimized luminous efficiency of the device.
  • the intermediate projection assembly 9 and the optical output element form a bifocal system, that is to say with a first focal length in a first plane containing the optical axis of projection 7 and a second focal length in a second plane containing the optical axis of projection and perpendicular to the first plane.
  • the optical output element very often has an elongated shape in a direction perpendicular to the optical axis.
  • the largest focal length of the system is calculated so as to correspond to the aperture angle 2 ⁇ of the micro-mirror array.
  • the other dimension perpendicular to the first for example the length
  • the output lens 3 is elongated along a substantially horizontal axis, but it is entirely possible to adapt the device to a substantially vertical orientation of the length of the optical output element without departing from the scope of the present invention.
  • micro mirror matrices available today, which are in video type dimensions, with a width to height surface ratio of for example 4/3, 16/9 or 16/10, and make it compatible with the dimensional constraints of the lighting beams and the style of the output optical elements, without loss of light.
  • this bifocal system is simple, comprising a limited number of optical elements, preferably less than four optical elements including the output optical element.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (11)

  1. Lichtbündelprojektionsvorrichtung eines Kraftfahrzeugs, umfassend wenigstens eine Lichtquelle (2), die geeignet ist, Lichtstrahlen auszusenden, ein optisches Projektionssystem mit einer Austrittspupille, die sich auf einem optischen Austrittselement befindet, wobei das optische Projektionssystem geeignet ist, ein Lichtbündel zu projizieren, wobei die Vorrichtung einen digitalen Schirm (4) umfasst, der dazu ausgebildet ist, wenigstens einen Anteil der einfallenden Lichtstrahlen, die von der wenigstens einen Quelle (2) ausgesendet werden, zum optischen Projektionssystem zu leiten, wobei die Vorrichtung (1) ferner Mittel zur Fokussierung (5) der Lichtstrahlen, die von der wenigstens einen Lichtquelle (2) ausgesendet werden, auf einen Bereich (6) des digitalen Schirms (4) und eine Zwischenprojektionsanordnung (9) für die Lichtstrahlen umfasst, die von dem digitalen Schirm (4) kommen, die dazu ausgebildet sind, die Oberfläche der Austrittspupille zu beleuchten, wobei die Zwischenprojektionsanordnung (9) dazu ausgebildet ist, die Lichtstrahlen, die von dem digitalen Schirm (4) kommen, so zu projizieren, dass im Wesentlichen die gesamte Oberfläche der Austrittspupille beleuchtet wird, und die Zwischenprojektionsanordnung (9) und das optische Austrittselement ein bifokales System bilden, das heißt mit einer ersten Brennweite in einer ersten Ebene, die die optische Projektionsachse (7) enthält, und einer zweiten Brennweite in einer zweiten Ebene, die die optische Projektionsachse (7) enthält und senkrecht zur ersten Ebene verläuft,
    dadurch gekennzeichnet, dass die Fokussierungsmittel (5) einen Reflektor umfassen, wobei die Lichtquelle (2) an einem ersten optischen Brennpunkt des Reflektors angeordnet ist und der digitale Schirm (4) an einem zweiten optischen Brennpunkt des Reflektors angeordnet ist.
  2. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das optische Austrittselement eine Austrittslinse (3) ist.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das optische Austrittselement ein Reflektor ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fokussierungsmittel (5) dazu ausgebildet sind, ein vergrößertes Bild (10) der Strahlen der Lichtquelle (2) auf dem digitalen Schirm (4) zu bilden.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (1) mehrere Lichtquellen (2) umfasst, wobei die Fokussierungsmittel (5) einen Reflektor oder einen Reflektorhohlraum umfassen, der jeder Lichtquelle oder Anordnung von Quellen (2) zugeordnet ist.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der digitale Schirm (4) eine Mikrospiegelmatrix ist, wobei die Orientierung jedes der Mikrospiegel zwei Positionen einnehmen kann, eine erste Position, in der die Lichtstrahlen zum optischen Projektionssystem reflektiert werden, und eine zweite Position, in der die Lichtstrahlen in eine andere Richtung als das optische Projektionssystem reflektiert werden.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Mikrospiegelmatrix so angeordnet ist, dass der Öffnungshalbwinkel β der Lichtstrahlen der Lichtquelle auf dem digitalen Schirm und der Öffnungshalbwinkel β der Lichtstrahlen zum optischen Projektionssystem im Verhältnis zum Schirm kleiner als 2α sind, wobei α ein charakteristischer Orientierungswinkel der Mikrospiegel ist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Lichtquelle (2) wenigstens eine Leuchtdiode umfasst.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Lichtquelle (2) wenigstens eine Laserquelle oder eine Laserdiode umfasst.
  10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lichtbündel ein Beleuchtungsbündel ist.
  11. Kraftfahrzeugscheinwerfer umfassend eine Lichtbündelprojektionsvorrichtung (1) nach einem der vorhergehenden Ansprüche.
EP16770716.5A 2015-09-15 2016-09-14 Lichtstrahlprojektionsvorrichtung eines kraftfahrzeugs und kraftfahrzeugscheinwerfer mit dieser vorrichtung Active EP3350506B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1558605A FR3041073B1 (fr) 2015-09-15 2015-09-15 Dispositif de projection de faisceau lumineux a ecran digital et projecteur muni d’un tel dispositif
PCT/EP2016/071681 WO2017046157A1 (fr) 2015-09-15 2016-09-14 Dispositif de projection de faisceau lumineux à écran digital et projecteur muni d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP3350506A1 EP3350506A1 (de) 2018-07-25
EP3350506B1 true EP3350506B1 (de) 2023-11-15

Family

ID=54783792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16770716.5A Active EP3350506B1 (de) 2015-09-15 2016-09-14 Lichtstrahlprojektionsvorrichtung eines kraftfahrzeugs und kraftfahrzeugscheinwerfer mit dieser vorrichtung

Country Status (5)

Country Link
US (1) US10591130B2 (de)
EP (1) EP3350506B1 (de)
CN (1) CN108291704B (de)
FR (1) FR3041073B1 (de)
WO (1) WO2017046157A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518286B1 (de) * 2016-02-24 2017-11-15 Zkw Group Gmbh Scheinwerfer für Fahrzeuge
US10180224B2 (en) * 2016-07-26 2019-01-15 Texas Instruments Incorporated Quasi-sparse optical illumination
FR3065784B1 (fr) 2017-04-28 2019-10-11 Valeo Vision Module lumineux avec optique d'imagerie optimisee pour un modulateur spatial pixellise, destine a un vehicule automobile
FR3084728B1 (fr) * 2018-07-31 2021-03-19 Valeo Vision Module lumineux imageant la surface eclairee d'un collecteur
DE102019108233A1 (de) * 2019-03-29 2020-10-01 Automotive Lighting Reutlingen Gmbh Lichtmodul für einen Kraftfahrzeugscheinwerfer mit n in einer Reihe nebeneinander angeordneten Teillichtmodulen
DE102019113480B4 (de) * 2019-05-21 2021-09-02 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für ein Fahrzeug, bei der zwei Bereiche mindestens eines Wellenlängen-Konverters mit unterschiedlichen Lichtstromdichten beaufschlagt werden
CN113639245A (zh) * 2020-04-27 2021-11-12 深圳光峰科技股份有限公司 一种自适应激光车灯

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547493A1 (de) * 1991-12-17 1993-06-23 Texas Instruments Incorporated Virtuelles Anzeigegerät sowie Verwendungsmethode
EP0911666A2 (de) * 1997-10-21 1999-04-28 Texas Instruments Incorporated Verbesserung optischer System oder Dergleichen
JP2013054963A (ja) * 2011-09-05 2013-03-21 Koito Mfg Co Ltd 車両用前照灯装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6861809B2 (en) 1998-09-18 2005-03-01 Gentex Corporation Headlamp control to prevent glare
KR100545294B1 (ko) * 2002-05-10 2006-01-24 에이에스엠엘 네델란즈 비.브이. 리소그래피 장치, 디바이스 제조방법, 성능측정방법,캘리브레이션 방법 및 컴퓨터 프로그램
US6969183B2 (en) 2002-12-27 2005-11-29 Ichikoh Industries, Ltd. Digital lighting apparatus for vehicle, controller for digital lighting apparatus, and control program for digital lighting apparatus
JP3098126U (ja) * 2003-02-14 2004-02-19 デルタ　エレクトロニクス　インコーポレーテッド 照明システムの導光装置
US8070357B2 (en) * 2008-07-25 2011-12-06 Freescale Semiconductor, Inc. Device and method for evaluating a temperature
US8033697B2 (en) * 2009-02-18 2011-10-11 National Kaohsiung First University Of Science And Technology Automotive headlight system and adaptive automotive headlight system with instant control and compensation
JP5304363B2 (ja) * 2009-03-18 2013-10-02 市光工業株式会社 車両用灯具
JP2011040247A (ja) * 2009-08-10 2011-02-24 Koito Mfg Co Ltd 車両用前照灯の灯具ユニット
JP2011238497A (ja) * 2010-05-12 2011-11-24 Stanley Electric Co Ltd Ｌｅｄ光源ユニットを用いた灯具
JP5212432B2 (ja) * 2010-07-16 2013-06-19 株式会社デンソー リードバルブ
KR101220063B1 (ko) * 2010-11-19 2013-01-08 주식회사 에스엘라이팅 차량의 지능형 헤드 램프 어셈블리
MX2012012917A (es) * 2012-11-06 2014-05-21 Luis Gerardo Aviña Silva Lampara tubular de leds.
FR3001027B1 (fr) * 2013-01-15 2015-03-20 Valeo Vision Module d'eclairage et procede de montage d'un tel module
JP2014212089A (ja) 2013-04-22 2014-11-13 株式会社小糸製作所 車両用灯具
JP6236745B2 (ja) * 2014-02-17 2017-11-29 スタンレー電気株式会社 車両用灯具
US10107467B2 (en) * 2014-06-26 2018-10-23 Texas Instruments Incorporated Methods and apparatus for illumination with DMD and laser modulated adaptive beam shaping
CN104180269B (zh) * 2014-09-05 2017-05-17 广东雷腾智能光电有限公司 一种汽车前照灯光学***
US10436409B2 (en) * 2015-05-28 2019-10-08 Texas Instruments Incorporated Methods and apparatus for light efficient programmable headlamp with anamorphic optics

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547493A1 (de) * 1991-12-17 1993-06-23 Texas Instruments Incorporated Virtuelles Anzeigegerät sowie Verwendungsmethode
EP0911666A2 (de) * 1997-10-21 1999-04-28 Texas Instruments Incorporated Verbesserung optischer System oder Dergleichen
JP2013054963A (ja) * 2011-09-05 2013-03-21 Koito Mfg Co Ltd 車両用前照灯装置

Also Published As

Publication number Publication date
FR3041073B1 (fr) 2020-01-31
EP3350506A1 (de) 2018-07-25
WO2017046157A1 (fr) 2017-03-23
US10591130B2 (en) 2020-03-17
FR3041073A1 (fr) 2017-03-17
CN108291704A (zh) 2018-07-17
CN108291704B (zh) 2020-12-29
US20180259148A1 (en) 2018-09-13

Similar Documents

Publication Publication Date Title
EP3350506B1 (de) Lichtstrahlprojektionsvorrichtung eines kraftfahrzeugs und kraftfahrzeugscheinwerfer mit dieser vorrichtung
FR3065784B1 (fr) Module lumineux avec optique d'imagerie optimisee pour un modulateur spatial pixellise, destine a un vehicule automobile
EP1746339B1 (de) Vorrichtung zur Beleuchtung oder Signalgebung, insbesondere für Fahrzeuge
EP2690352B1 (de) Adaptives Beleuchtungssystem für Kraftfahrzeug
EP2871406B1 (de) Optisches Hauptelement, Beleuchtungsmodul und Scheinwerfer für Kraftfahrzeug
EP3167226B1 (de) Beleuchtungsmodul für ein kraftfahrzeug
EP2199664B1 (de) Beleuchtungsvorrichtung für Fahrzeugscheinwerfer, der mehrere Beleuchtungsfunktionen oder eine veränderbare Funktion mit einer einzigen Lichtquelle ermöglicht
EP1500869A1 (de) Elliptische Beleuchtungseinheit ohne Lichtblende zur Erzeugung eines Abblendlichtbündels und Scheinwerfer mit einer derartigen Belleuchtungseinheit
FR3003629A1 (fr) Systeme d'eclairage multifonction
FR2906345B1 (fr) Phare de vehicule a distribution de lumiere optimisee
EP3775675A1 (de) Monolithische kraftfahrzeugvorrichtung mit leuchtmatrixanordnung zum schreiben auf dem boden
EP3453946A1 (de) Leuchtmodul für kraftfahrzeug, und beleuchtungs- und/oder signalisierungsvorrichtung, die mit einem solchen modul ausgestattet ist
FR3100866A1 (fr) Projecteur de véhicule
EP2853804B1 (de) Beleuchtungs- und/oder signalisierungsmodul mit mehreren drehbaren optischen systemen
EP3717828B1 (de) Leuchtmodul für ein kraftfahrzeug und beleuchtungs- und/oder signalvorrichtung mit einem solchen modul
EP4031413A1 (de) Fahrzeugscheinwerfer
FR3054020B1 (fr) Dispositif de projection de faisceau lumineux a ecran digital et projecteur muni d'un tel dispositif
FR3041112A1 (fr) Module de projection d'un faisceau lumineux d'eclairage automobile, et projecteur muni d'un tel module
WO2024094529A1 (fr) Dispositif d'éclairage
WO2023031344A1 (fr) Dispositif lumineux d'un véhicule automobile
WO2024094530A1 (fr) Dispositif d'éclairage
EP3857115A1 (de) Leuchtmodul für kraftfahrzeug und mit solch einem modul ausgestattete beleuchtungs- und/oder signalvorrichtung
FR3100864A1 (fr) Projecteur de véhicule
FR3144249A1 (fr) Module d’éclairage
FR3012573A1 (fr) Module optique pour un projecteur de vehicule comprenant une source laser

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180313

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: F21S 8/10 20060101AFI20170403BHEP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602016084147

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F21S0008100000

Ipc: F21S0041160000

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: F21S0008100000

Ipc: F21S0041160000

RIC1 Information provided on ipc code assigned before grant

Ipc: F21S 41/16 20180101AFI20210510BHEP

Ipc: F21S 41/176 20180101ALI20210510BHEP

Ipc: F21S 41/265 20180101ALI20210510BHEP

Ipc: F21S 41/33 20180101ALI20210510BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210714

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230615

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230528

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016084147

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20231115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1632085

Country of ref document: AT

Kind code of ref document: T

Effective date: 20231115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240315

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240216

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240215

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240215

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231115