EP3350506A1 - Dispositif de projection de faisceau lumineux à écran digital et projecteur muni d'un tel dispositif - Google Patents
Dispositif de projection de faisceau lumineux à écran digital et projecteur muni d'un tel dispositifInfo
- Publication number
- EP3350506A1 EP3350506A1 EP16770716.5A EP16770716A EP3350506A1 EP 3350506 A1 EP3350506 A1 EP 3350506A1 EP 16770716 A EP16770716 A EP 16770716A EP 3350506 A1 EP3350506 A1 EP 3350506A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- digital screen
- projection
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 86
- 210000001747 pupil Anatomy 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims description 17
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 229910052724 xenon Inorganic materials 0.000 description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000004065 semiconductor Substances 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
- F21S41/10—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
- Device for projecting a light beam with digital screen and projector provided with such a device.
- the present invention relates to a device for projecting a light beam with a digital screen, in particular for a motor vehicle, and an automobile lighting light beam projector, of the low beam or high beam type, provided with such a projection device.
- the projectors of a motor vehicle are provided with several elements arranged in a housing so as to obtain a light beam at the exit of the projector.
- the housing elements comprise in particular a light source, for example one (or more) electroluminescent diode (s), which emits light rays, and projection means capable of forming a light beam from light rays from the light source, for example consisting of the combination of a reflector disposed near the light source and a lens at the output of the projector.
- the function of the reflector is to focus and orient the light rays from the light source towards the lens, which ends up forming the light beam for the projector.
- the projection means may alternatively comprise only reflectors or lenses.
- the 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 relates to the possibility of making adaptive lighting beams (or ADB, acronym for Adaptive Driving Beam in English), depending on traffic conditions and in particular to make dark tunnels to isolate in the beam of crossed vehicles or followed, so as not to dazzle them (anti-glare high beam function, also known by the acronym GFHB of the Glare-Free High Beam Angle).
- ADB acronym for Adaptive Driving Beam in English
- WO2008 / 037388 thus makes known the realization of this function by means of rotary modules as described above which are associated with a set of diaphragms to create a dark zone in the beam and to illuminate on each side of the vehicle located in said dark area.
- This micro-mirror matrix technology is particularly interesting today because it is technically mature and relatively affordable for use in automotive lighting, and allows the development of a compact and precise lighting system, with a number high pixels.
- the known projectors combining Xenon light source and micro-mirror matrix are not particularly optimized, comprising a collimation of the source on the micro-mirror matrix which has a large footprint and complex projection optics with more than four lenses , or more than six lenses.
- the invention therefore aims first and foremost to obtain a projector configured to project a light beam that can be modified according to the trajectory of the vehicle or the circumstances of the driving (adaptive beam), and which does not use imposing mechanical means or with significant travel to make these changes.
- the invention aims to provide a simple way to achieve a high performance projector (with good performance) using a digital screen matrix type of micro-mirrors, effectively using light sources.
- the invention relates to a light beam projection device, particularly for a motor vehicle, comprising at least one light source capable of emitting light rays, a projection optical system with an exit pupil located on an optical element of output, 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 projection optical system, the device further comprising means for focusing the light rays emitted by the at least one light source on an area of the digital screen, and an intermediate assembly of projection of light rays from the digital screen configured to illuminate the surface of said exit pupil.
- a digital screen is used to modulate the light beam projected by the device.
- the focusing means concentrates the light rays emitted by the source on an area of the digital screen, which acts as a mirror to direct them to the projection optical 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 device comprising an optical output element, thereby extinguishing an area of the beam.
- the invention makes it possible, on the one hand, to dispense with mechanical means with a large deflection, and on the other hand to effectively use a digital screen by means of focusing the light rays on an area of the digital screen and at the same time.
- intermediate projection assembly which performs an anamorphosis of the surface of the digital screen on the exit pupil of the projection optical system.
- the focusing means comprise a reflector, the light source being arranged at a first optical focus of said reflector and the digital screen being arranged at a second optical focus of said reflector,
- the intermediate projection assembly is configured to project the light rays from the digital screen so as to illuminate substantially the entire surface of the exit pupil
- the intermediate projection assembly forms with the optical output element a bifocal system
- the intermediate projection assembly comprises at least one lens and at most three lenses, preferably two lenses,
- the focusing means are configured to form an enlarged image of the rays of the light source on the digital screen
- the device comprises a plurality of light sources, the focusing means comprising a reflector or a reflector cavity associated with each light source or set of sources,
- the digital screen is a matrix of micro-mirrors
- the orientation of each of the micro-mirrors can take two positions, a first position in which the light rays are reflected towards the projection optical system and a second position in which the rays light are reflected in a different direction from the projection optical system,
- the matrix of micro-mirrors is arranged so that the half-opening angle ⁇ of the light rays of the light source on the digital screen and the half-opening angle ⁇ of the light rays towards the projection system relative to on the screen, are less than 2a, a being the characteristic orientation angle of the micro-mirrors of the micro-mirror array, the light source comprises at least one light-emitting diode,
- the light source comprises at least one laser source or a laser diode
- the exit pupil of the optical system has, in projection on a plane perpendicular to the projection axis, a substantially rectangular shape with a ratio of at least 3, preferably at least 4 or 5 between the dimension of the small side and the large side,
- the optical output element is of elongate shape and has a dimension perpendicular to the optical axis which is less than 50 mm, preferably less than 30 mm, more preferably less than 20 mm,
- the output optical element is a lens
- the optical output element is a reflector
- the light beam generated by the device is a road beam.
- the invention also relates to a motor vehicle headlight comprising such a projection device.
- FIG. 2 schematically illustrating a perspective view of a digital screen light beam projection device according to one embodiment of the invention
- FIG. 3 illustrating the shape of the incident beam on the digital screen originating from the light source (s)
- FIG. 4 (a), (b) and (c) illustrating examples of shape of the beam reflected by the digital screen towards the lens means, from the incident beam illustrated in FIG. 3,
- FIG. 5 schematically illustrating a second part of the projection device according to the invention
- Figure 6 schematically illustrating a profile view of a digital screen light beam projection device according to one embodiment of the invention.
- Figure 1 partially illustrates the device according to the invention, the intermediate projection assembly not being shown. This is visible in Figures 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 in Fig. 1 has a single light source 2, and the embodiments shown in Figs. 2 and 6 have three light sources 2 arranged adjacent to each other.
- the light source (s) 2 are arranged on a support 25.
- the light source or sources 2 are formed of at least one light-emitting diode (LED) disposed on the support 25.
- LED light-emitting diode
- the light source 2 associates a laser source with at least one light emitting diode.
- the laser source is directed towards the diode disposed on the support.
- the diode also includes a higher wavelength conversion layer, for example phosphor, for diffusing a portion of the laser light and converting another portion into a suitable color.
- the laser source transmits to the conversion element the additional light that is added 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 disposed on the support 25 or at a distance from the support 25 and directed towards the latter.
- the laser source is disposed in place of the light emitting diode.
- the carrier 25 is provided with a radiation wavelength conversion element for converting the light rays into the desired color.
- a plate made of phosphor material can be used as a support 25.
- the plate made of phosphor material can be used in transmission or in 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 at 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 or diodes illuminating more specifically the central portion 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.
- the use of light sources of the optoelectronic semiconductor component type is particularly advantageous with respect to a Xenon source: they not only do not emit infrared radiation likely to heat the light source. digital screen and cause a malfunction thereof, 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 luminous flux emitted by these sources on the digital screen.
- the light beam projection device 1 comprises a projection optical system comprising an optical output element, which is here an exit lens 3.
- This projection optical system is capable of projecting a light beam at the output of a projection module or a projector for example.
- the light rays emitted by the light source (s) 2 are deflected to form a beam corresponding to a beam of the dipped beam, high beam or any other desired beam.
- the projection optical 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 illumination axis 8.
- the use of focusing means instead of means of illumination 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 for the purpose of producing an automotive lighting beam.
- the projection device 1 further comprises a digital screen 4 configured to direct at least part of the incident light rays emitted by the source 2 towards the projection system.
- the digital screen 4 is formed of individually controlled pixels. . Each pixel is configured to either allow the incident light rays to reach the projection optical system, or to 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 FIGS. 4 (a), (b) and (c) show three examples of beam shape returned. 1 1, 12, 13 by the digital screen from the incident beam 10 of 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 make a beam orientation modification projected on the road, with a zone of maximum intensity M.
- the digital screen 4 makes it possible to select part of the incident beam by activating a part of the pixels.
- the beam reflected 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).
- Fig. 4 (a) the reflected beam 11 is oriented to the left
- beam 12 of Fig. 4 (b) is centered and corresponds to a default road beam
- beam 13 of Fig. 4 (c) is oriented to the right, the position of the zone of maximum intensity M varying according to the orientation.
- an automotive projector one can choose the orientation of the beam projected on the road, and adapt it to a situation, for example in a turn.
- the digital screen 4 is a matrix of micro-mirrors (also known by the acronym DMD for the English Digital Micromirror Device) which directs the light rays by reflection.
- the light rays are reflected in two possible directions: either towards the projection optical system and the exit lens 3 around the optical projection axis 7, to form the beam projected by the projection device 1, or in a different direction the projection optical system and the exit lens 3.
- each micro mirror can pivot between two fixed positions, a first position in which the light rays are reflected towards the projection optical 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, with respect to a reference plane, a support of the matrix of micro-mirrors with a characteristic angle of the matrix of micro-mirrors, defined in its specifications.
- This angle a is generally less than 20 ° and is usually about 12 °.
- each micro-mirror reflecting a small portion of the light rays incident on the matrix the actuation of the change of position makes it possible to modify the shape of the beam emitted by the optical projection system and ultimately the exit lens 3.
- the rays light returned by the micro-mirrors to the optical projection system participate in the beam projected by the projection device 1.
- the light rays reflected by the micro-mirrors in a different direction do not participate in the projected beam. From the incident beam 10 of FIG. 3, only a part of the beam can be selected to reflect it towards the projection optical system, said part corresponding for example to one of those of FIG. 4. As shown in FIG.
- the matrix of micro-mirrors and the light source (s) 2 are arranged so that the half-angle of opening ⁇ of the light rays incident on the digital screen 4 is at most equal to twice the characteristic angle a micro-mirrors of the digital screen 4.
- the half-angle of opening ⁇ 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 angle of opening of the incident light rays is defined with respect to the optical illumination axis 8
- the angle of opening of the reflected rays of light is defined with respect to the optical projection axis 7.
- the optical illumination axis 8 and the optical projection axis 7 form an angle greater than or equal to 2a between them.
- the focusing means 5 focus the light rays on an area 6 of the digital screen 4.
- the light rays are concentrated on a reduced area 6 of the digital screen 4 to ensure a sufficiently powerful beam emitted by the device 1 while remaining compact. Thanks to the projection device 1 according to the invention, it is possible to use a digital screen in combination with projection means to form a beam type dipped beam or high beam with dynamic turning functions or anti-glare .
- 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 focusing means are a substantially elliptical reflector, the light source 2 being disposed at a first optical focus of said reflector and the digital screen 4 being disposed at a second optical focus of said reflector.
- each light source or set of sources is arranged to illuminate an area substantially distinct from the digital screen.
- the device 1 comprises several light sources or sets of light sources 2, the first focusing means comprising an elliptical reflector or a reflector cavity associated with each light source 2 each light source assembly 2 and reflector or reflector cavity being configured to illuminate an area substantially distinct from the digital screen 4.
- the projection optical 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 projection optical system, and in particular the optical output element, here constituted by an output lens 3, as shown in Figures 2, 5 and 6.
- the intermediate projection assembly 9 is advantageously configured to project the light rays from the digital screen 4 so as to illuminate substantially the entire surface the exit pupil of the projection optical system, this exit pupil being located on the output optical element.
- the device remains compact because it can have a projection system comprising an optical output element, including 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 output optical element, and in particular of the pupil of output of the optical system carried by said output optical element.
- This intermediate projection assembly comprises at least one lens and at most three lenses. Preferably, it comprises two lenses.
- the intermediate projection assembly comprises a first lens 15 and a second lens 14.
- the first lens 15 is convergent at least in one plane.
- These lenses of the intermediate assembly 9 may 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 of less than 10 mm, while the second lens 14 is close to the output lens 3, also at a distance of 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 the height of the exit pupil, so that the output face of the optical output element here, the output lens 3, appears entirely or almost entirely illuminated for an observer placed in the optical axis and looking at said exit face.
- substantially means 100% of the dimension, + -5%.
- the shape of the light rays reflected by the digital screen 4 is adapted to the dimensions of the optical output element, here the output lens 3, to maintain a compact device. It also ensures the shot 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 point in a foreground containing the optical projection axis 7 and a second focal length in a second plane that is in line with the optical projection axis and perpendicular to the first plane.
- the output optical element often has an elongate shape in a direction perpendicular to the optical axis.
- the largest focal length of the system is calculated to correspond to the opening angle 2a of the micromirror matrix.
- a small focal length will be chosen so as to spread out the beam in the corresponding direction, for example to produce a beam of road type open at 20 ° horizontally on both sides. other of the optical axis.
- the output lens 3 is elongated along a substantially horizontal axis, but it will be quite possible to adapt the device to a substantially vertical orientation of the length of the optical output element without departing from the scope of this invention.
- micro mirror matrices available today, which are in video-type dimensions, with a surface-to-height ratio of, for example, 4/3, 16/9 or 16/10, and make it compatible with the dimensional constraints of light beams and the style of optical output 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 optical output 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)
Abstract
Description
Claims
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 true EP3350506A1 (fr) | 2018-07-25 |
EP3350506B1 EP3350506B1 (fr) | 2023-11-15 |
Family
ID=54783792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16770716.5A Active EP3350506B1 (fr) | 2015-09-15 | 2016-09-14 | Dispositif de projection de faisceau lumineux de vehicule automobile et projecteur de vehicule comprenant ledit dispositif |
Country Status (5)
Country | Link |
---|---|
US (1) | US10591130B2 (fr) |
EP (1) | EP3350506B1 (fr) |
CN (1) | CN108291704B (fr) |
FR (1) | FR3041073B1 (fr) |
WO (1) | WO2017046157A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3491292B1 (fr) * | 2016-07-26 | 2021-03-03 | Texas Instruments Incorporated | Éclairage optique de type quasi épars |
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AT518286B1 (de) * | 2016-02-24 | 2017-11-15 | Zkw Group Gmbh | Scheinwerfer für Fahrzeuge |
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 |
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US5930050A (en) * | 1997-10-21 | 1999-07-27 | Texas Instruments Incorporated | Anamorphic lens for providing wide-screen images generated by a spatial light modulator |
KR100545294B1 (ko) * | 2002-05-10 | 2006-01-24 | 에이에스엠엘 네델란즈 비.브이. | 리소그래피 장치, 디바이스 제조방법, 성능측정방법,캘리브레이션 방법 및 컴퓨터 프로그램 |
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KR101220063B1 (ko) * | 2010-11-19 | 2013-01-08 | 주식회사 에스엘라이팅 | 차량의 지능형 헤드 램프 어셈블리 |
JP5823214B2 (ja) * | 2011-09-05 | 2015-11-25 | 株式会社小糸製作所 | 車両用前照灯装置 |
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系统 |
US10436409B2 (en) * | 2015-05-28 | 2019-10-08 | Texas Instruments Incorporated | Methods and apparatus for light efficient programmable headlamp with anamorphic optics |
-
2015
- 2015-09-15 FR FR1558605A patent/FR3041073B1/fr active Active
-
2016
- 2016-09-14 CN CN201680066394.8A patent/CN108291704B/zh active Active
- 2016-09-14 WO PCT/EP2016/071681 patent/WO2017046157A1/fr active Application Filing
- 2016-09-14 EP EP16770716.5A patent/EP3350506B1/fr active Active
- 2016-09-14 US US15/760,049 patent/US10591130B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3491292B1 (fr) * | 2016-07-26 | 2021-03-03 | Texas Instruments Incorporated | Éclairage optique de type quasi épars |
Also Published As
Publication number | Publication date |
---|---|
FR3041073B1 (fr) | 2020-01-31 |
WO2017046157A1 (fr) | 2017-03-23 |
US10591130B2 (en) | 2020-03-17 |
FR3041073A1 (fr) | 2017-03-17 |
EP3350506B1 (fr) | 2023-11-15 |
CN108291704A (zh) | 2018-07-17 |
CN108291704B (zh) | 2020-12-29 |
US20180259148A1 (en) | 2018-09-13 |
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