EP3140591B1 - Génération d'un motif de rayonnement lumineux dans un champ lointain - Google Patents

Génération d'un motif de rayonnement lumineux dans un champ lointain Download PDF

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Publication number
EP3140591B1
EP3140591B1 EP15721634.2A EP15721634A EP3140591B1 EP 3140591 B1 EP3140591 B1 EP 3140591B1 EP 15721634 A EP15721634 A EP 15721634A EP 3140591 B1 EP3140591 B1 EP 3140591B1
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EP
European Patent Office
Prior art keywords
phosphor
light
light emission
lighting apparatus
illumination
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Not-in-force
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EP15721634.2A
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German (de)
English (en)
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EP3140591A1 (fr
Inventor
Jürgen HAGER
Stephan Schwaiger
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Osram GmbH
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Osram GmbH
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    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/686—Blades, i.e. screens moving in a vertical plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • 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
    • 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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • 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
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/695—Screens rotating around a vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • F21V9/45—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity by adjustment of photoluminescent elements

Definitions

  • the invention relates to a lighting device for a headlight for generating a Lichtabstrahlmusters in a far field, comprising at least one phosphor surface and at least one spaced from the phosphor surface light source for emitting primary light for illuminating the phosphor surface, whereby an associated Lichtabstrahlmuster can be generated.
  • the invention is particularly applicable to a vehicle headlamp, especially for a passenger or truck.
  • WO 2011/160680 A1 discloses a light source assembly comprising a primary light source and a secondary light source, the primary light source configured to illuminate the secondary light source, the secondary light source comprising a polyhedron having at least first and second phosphor surfaces, wherein the primary light source comprises at least one laser or light emitting diode; wherein a drive mechanism is attached to the primary light source or to the secondary light source.
  • US 2006/0227087 A1 discloses laser display systems that generate at least one scanning laser beam to produce one or more phosphors on a screen that emits light to form images.
  • the phosphor materials may include phosphor materials.
  • EP 2 359 605 B1 discloses a luminous means having at least one semiconductor laser adapted to emit primary radiation having a wavelength between 360 nm and 485 nm inclusive, and at least one conversion means downstream of the semiconductor laser and adapted to convert at least a portion of the primary radiation into secondary radiation with one of the The radiation emitted by the lamp radiation has an optical coherence length which is at most 50 microns, wherein the conversion agent has a concentration of color centers or luminous dots, which is at least 10 ⁇ 7 / ⁇ m ⁇ 3 and the color centers or Luminous dots are statistically distributed in the conversion means, and wherein a radiated from the primary radiation focal spot of the conversion means has an area of at most 0.5 square millimeters.
  • the WO 2013/164276 A1 discloses a vehicle lighting device having at least one semiconductor light source and at least one can be irradiated by the semiconductor light source reflector device each having at least one tiltable reflector element, wherein at least one tiltable reflector element is coated with phosphor.
  • the reflector device can also be adjustable, in particular longitudinally displaceable or rotatable about one or more axes. It is the object of the present invention to at least partially overcome the disadvantages of the prior art, and in particular to provide an improved possibility for the multi-faceted adjustment of a LichtabstrahlGermans means of a "remote phosphor" device.
  • the fact that the fluorescent surfaces can be introduced into the illumination surface comprises that the fluorescent surfaces are arranged at a distance from the at least one light source. This corresponds to a "remote phosphor" arrangement.
  • the far field may be a field or space at a distance of at least two meters to a distance of several hundred meters in front of the headlight.
  • the illumination surface may correspond in particular in size and extent and shape factor to a light spot generated by the primary light.
  • a phosphor surface has at least one phosphor or conversion (color) substance which at least partially converts or converts the primary light incident thereon into secondary light of different wavelength, in particular of a larger wavelength.
  • This wavelength conversion is basically known and need not be further elaborated here.
  • a phosphor may partially convert incident blue primary light into yellow secondary light, so that a total of blue-yellow or white mixed light with corresponding proportions of primary light and secondary light is radiated from the phosphor surface. In principle, however, a full conversion is possible.
  • At least one associated phosphor surface may be inhomogeneously coated with at least one phosphor, eg with an inhomogeneous layer thickness and / or an inhomogeneous phosphor concentration of at least one phosphor, in particular over a large area.
  • At least one phosphor surface may have a uniform distribution of phosphor. This enables a uniformly illuminating light emission pattern.
  • a phosphor surface may also have separate subregions with different phosphor concentrations and / or phosphors or phosphor mixtures. Additionally or alternatively, the subregions with different phosphor concentrations may adjoin one another and fill at least one subarea of the illumination surface in a coherent manner. For this purpose, for example, partial areas with a hexagonal-polygonal structure and / or as a combination of different geometric shapes are provided, in particular in the sense of a complete “tesselation” (eg a so-called "Penrose tesselation").
  • phosphor surfaces can be excluded in which the mixed light is generated only after the phosphor surface by superposition, e.g. in that different colored radiation generated by the phosphor surface comes together behind or behind the phosphor surface.
  • phosphor surfaces can be excluded so as to have closely juxtaposed (narrowly localized) regions with different phosphors (e.g., in stripe form or grouped as pixels), the phosphors producing secondary light with respective color fractions of the blend light. Therefore, in particular strips or pixels with primary color-producing phosphors, e.g. the primary colors red, green and / or blue (RGB color space) or cyan, magenta and / or yellow (CMY color space).
  • primary color-producing phosphors e.g. the primary colors red, green and / or blue (RGB color space) or cyan, magenta and / or yellow (CMY color space).
  • the light reflected or backscattered by the phosphor surface is used as useful light for generating the light emission pattern in the far field ("reflective arrangement").
  • This may mean in particular that this light of the phosphor surface is selectively reflected (eg by attachment to a reflective support).
  • the light emerging at the side of the phosphor surface facing away from the incident primary light may be used as useful light for generating a light emission pattern in the far field ("transmitted light arrangement” or "transmissive arrangement”).
  • LED chips can be mounted on a common substrate ("submount").
  • substrate e.g. based on InGaN or AlInGaP
  • organic LEDs for example polymer OLEDs
  • the at least one semiconductor light source may be e.g. have at least one diode laser or be such.
  • the at least one semiconductor light source may be equipped with at least one own and / or common optics for beam guidance, e.g. at least one Fresnel lens, collimator, and so on.
  • the primary light generated by at least one light source may be split into two or more different light beams, e.g. by means of a beam splitter.
  • the light of several light sources may alternatively or additionally be combined or combined in a light beam.
  • the control device may be coupled to at least one motor for moving the phosphor surfaces or may have at least one such motor.
  • the at least one motor may in particular translate at least one carrier for the phosphor surfaces translationally, in particular linearly.
  • the control device may be electronics.
  • the control device may be part of a lighting device which can be installed as a module in the vehicle or may be provided in the vehicle and connected thereto after installation of a lighting device, in particular with a motor of the lighting device.
  • At least two phosphor surfaces are arranged at a distance from each other, e.g. separated by a gap or an edge or a corner. It is still a further development that at least two phosphor surfaces are arranged directly adjacent to one another, e.g. arranged virtually gap-free adjacent or formed as subregions of a consistently formed larger (multiple or group) fluorescent surface.
  • the shape of a phosphor surface is not limited and may be at least partially planar or curved.
  • the phosphor surface may be freely shaped and e.g. have multiple facets.
  • fluorescent surfaces may protrude from the ground plane, for example by tilting or tilting.
  • the phosphor surface may be preceded by a stationary or co-displaceable optics, for example for beam shaping and / or spectral filtering of a light beam incident on the phosphor surface and / or beam shaping and / or spectral filtering of a light emitted by the phosphor surface (including a mixed light).
  • the optics may have one or more optical elements, e.g. at least one lens, at least one concentrator, at least one collimator, at least one reflector, at least one aperture, at least one filter, etc.
  • At least one currently illuminable phosphor surface (which is thus located within the illumination surface) has optics for directing the light emitted by the at least one phosphor surface is connected downstream of the far field.
  • This downstream (“secondary") optic is in particular not rotatable together with the phosphor surfaces and serves, for example, for beam shaping and / or spectral filtering of the light emitted by the phosphor surface (including a mixed light).
  • the optics may have one or more optical elements, for example at least one lens, concentrator, collimator, reflector, aperture, filter, etc. If a plurality of phosphor surfaces illuminate, they may illuminate the same and / or different regions of the downstream optics.
  • the lighting device has at least one shell-like reflector, which is connected downstream of at least one currently illuminated phosphor surface.
  • the at least one currently illuminable phosphor surface is preferably located in the region of a focal spot of the reflector illuminated by it.
  • At least two light emission patterns may have a different white light color. It is a development that they have the same shape. Thus, a light-emitting pattern may only be changed in color, e.g. to adapt to changed lighting conditions.
  • At least one phosphor surface can be moved into the illumination surface by means of a pure translational movement (that is to say without a rotational component).
  • the at least one phosphor surface thus retains its orientation in space. This makes it possible to achieve a particularly simple movement.
  • a trajectory or trajectory of the at least one phosphor surface is basically arbitrary and therefore may also be curved.
  • the trajectory may be in a three-dimensional space or in a plane.
  • the translation movement may be a linear or rectilinear translational movement.
  • a Lichtabstrahlmuster by means of at least one stationary aligned primary light beam (ie "static") can be generated.
  • static a light path of at least one primary light beam does not change with time, but remains stationary or fixed.
  • the Lichtabstrahlmuster is generated completely in particular at any time. This embodiment is particularly easy to implement.
  • the at least one primary light beam has a significant cross-sectional size. This results in the advantage that the primary light beam can simultaneously illuminate a large area of the at least one phosphor surface which can currently be illuminated in the determined position.
  • the simultaneous illumination of the phosphor surfaces of a plurality of carriers can be implemented, for example, by means of one or more primary light beams.
  • the plural primary light beams may be e.g. be generated by at least one respective light source, alternatively by means of a common light source and subsequent splitting of the primary light beam into a plurality of partial beams.
  • the light emission pattern may be individualized by simultaneous illumination of several be translatable, in particular linear, movable phosphor surfaces to be generated.
  • the lighting device as a vehicle headlight or as a part thereof, wherein the vehicle headlight as an AFS ("Adaptive Frontlighting System") - or an ADB (“Adaptive Driving Beam”) - headlights is set up.
  • AFS Adaptive Frontlighting System
  • ADB Adaptive Driving Beam
  • Such influences may include environmental parameters, such as a weather situation, a condition of a lane, a time of day, a position of the sun, etc., or driver-specific parameters such as age, fatigue, level of experience, and so on.
  • Such parameters can be detected by a corresponding type of sensor of the vehicle, for example, a camera, a rain sensor, a distance sensor, etc.
  • a corresponding type of sensor of the vehicle for example, a camera, a rain sensor, a distance sensor, etc.
  • the peculiarities of color blind or partially color blind eg, with a red / green weakness
  • This can achieve greater traffic safety. It may also be additional comfort for the driver or passengers are generated.
  • Fig.1 shows a lighting device 1, for example, for a vehicle headlight E.
  • the vehicle headlight E may eg be installed in a motor vehicle, for example in a passenger car, a truck or a motorcycle.
  • the vehicle headlight E generates a light emission pattern L in a far field F around the vehicle, in particular in front of the vehicle.
  • the lighting device 1 has a plate-like or disk-like carrier 2 for three planar phosphor volumes, which are referred to below as fluorescent surfaces 3a to 3c.
  • the phosphor surfaces 3 a, 3 b and 3 c lie next to one another in a row on a flat surface of the carrier 2.
  • the phosphor surfaces 3a to 3c may be e.g. be sprayed or printed on the support 2.
  • the phosphor surfaces 3a to 3c may have been applied to the carrier 2 as respective prefabricated platelets (e.g., ceramic platelets), e.g. be glued on.
  • the carrier 2 can be displaced along its extended plane by a translatory linear movement, here along a displacement direction V.
  • the carrier 2 assumes different positions, in each of which one of the phosphor surfaces 3a, 3b or 3c lies in the illumination surface 7 or the phosphor surfaces 3a to 3c alternately in the illumination surface 7 can be introduced.
  • the carrier 2 can be linearly displaced so that in each case one of the phosphor surfaces 3a, 3b or 3c can be illuminated by the primary light beam P.
  • the phosphor areas 3a to 3c are each shown larger than the illumination area 7. However, this is not necessarily necessary, but gives the advantage that free areas of the carrier 2 are not mitbemonyt.
  • the illumination surface 7 can be limited by means of a mechanical diaphragm. This can be connected to the carrier 2.
  • the light emission patterns L may differ in terms of their shape, color and / or color distribution.
  • At least one phosphor surface may be present, which still generates another light emission pattern L, e.g. for use as a low beam, as a high beam, etc.
  • the linear motor 10 is coupled to a control device 11, which drives the linear motor 10.
  • the linear motor 10 and the controller 11 may also be integrated in a single component.
  • the control device 11 is set up to control the linear motor 10 in such a way that a phosphor surface 3a, 3b or 3c provided for a specific light emission pattern L is thereby moved linearly into the illumination surface 7.
  • the control device 11 can receive control commands ST for actuating the linear motor 10, which command the light emission pattern L to be generated.
  • These control commands ST are converted by the control device 11 into drive signals for the linear motor 10, and the drive signals are then made available to the linear motor 10 for specifying its linear movement.
  • the control commands ST may originate, for example, from vehicle electronics (not shown).
  • Fig.2 shows in frontal view another possible carrier 12, which is used for example in place of the carrier 2 in the lighting device 1.
  • the carrier 12 has four fluorescent surfaces 13a, 13b, 13c and 13d arranged next to one another in a 2x2 matrix pattern. Only one phosphor surface 13a, 13b, 13c or 13d is illuminated in each case. Each individual phosphor surface 13a, 13b, 13c or 13d can consequently produce a complete light emission pattern L.
  • a linear movement of the carrier 12 in its plane (for example, generated by means of the linear motor 10), it can be moved so that each of the phosphor surfaces 13a, 13b, 13c or 13d can be brought into the illumination surface 7 respectively.
  • the linear movement is indicated by the double-sided arrows.
  • n and m are integers, at least one of which is greater than one.
  • a length-to-width ratio or aspect ratio of the individual phosphor surfaces is arbitrary.
  • the individual phosphor surfaces need not be rectangular, but may take other forms. Between the phosphor surfaces, there may also be areas that are free of phosphor. Also, an irregular arrangement of the phosphor surfaces is possible. Likewise, the arrangement of the phosphors within a phosphor surface is not limited. Any desired division can be used. Realizations are possible both in a transmissive use (transmitted light arrangement as shown) and in a reflective use of the phosphor.
  • the reflectors 6a and 6b in turn are illuminated by the phosphor surfaces 3a, 3b or 3c or 3d, 3e or 3f.
  • a light emission pattern L in the far field F can then be composed by a superimposition of the useful light emitted by both reflectors 6a and 6b (not shown). This corresponds to an addition of the useful light generated by opposing phosphor surfaces 3a and 3d, 3b and 3e or 3f and 3c.
  • a specific Lichtabstrahlstrahlmuster can be adjusted for example by any, but then firmly selected combination of the phosphor surfaces A1 to A3, B1 to B3, C1 to C3 and D1 to D3.
  • the light generated in this process can again be thrown into the far field F by means of optics (not shown), in particular an imaging optic.
  • respective linear motors 10a to 10d may be used, which are controllable together by the control device 11.
  • the control device 11 can also receive control commands ST for controlling the linear motors 10a to 10d, which predetermine the light emission pattern L to be generated.
  • These Control commands ST are converted by the control device 11 into drive signals for the linear motors 10a to 10d in order to bring the combination of the phosphor areas A1 to D3, corresponding to the desired light emission pattern, into the illumination area 32.
  • a number may include exactly the specified number as well as a usual tolerance range, as long as this is not explicitly excluded.

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

Claims (10)

  1. Dispositif d'éclairage (1 ; 21 ; 31) pour un phare (E) pour générer un motif de rayonnement lumineux (L) dans un champ lointain (F), comportant :
    - au moins une source de lumière (4 ; 4a, 4b) pour envoyer une lumière primaire (P) sur une surface d'illumination (7 ; 7a, 7b ; 32) ;
    - au moins deux surfaces de substance luminescentes différentes (3a-3c ; 3a-3f ; 13a-13d ; A1-D3) qui peuvent être intégrées dans la surface d'illumination (7 ; 7a, 7b ; 32) au moins partiellement, et en alternance, au moyen d'au moins un mouvement de translation (V) ; et
    - un dispositif de commande (11) pour positionner les surfaces de substance luminescentes (3a-3c ; 3a-3f ; 13a-13d ; A1-D3) par rapport à la surface d'illumination (7 ; 7a, 7b ; 32) ;
    - dans une position prédéfinie des surfaces de substance luminescentes (3a-3c ; 3a-3f ; 13a-13d ; A1-D3) pouvant être généré un motif de rayonnement lumineux (L) respectivement associé ; et
    - le dispositif de commande (11) étant configuré pour faire entrer dans la surface d'illumination (7 ; 7a, 7b ; 32), aux fins de l'ajustage d'un motif de rayonnement lumineux déterminé (L), au moins une surface de substance luminescente prévue à cet effet (3a-3c ; 3a-3f ; 13a-13d ; A1-D3) au moyen d'au moins un mouvement de translation,
    caractérisé en ce que
    le dispositif d'éclairage comporte plusieurs supports (2a-2d) déplaçables au moins en translation de manière indépendante les uns des autres et comportant respectivement plusieurs surfaces de substance luminescentes (A1-D3), respectivement une surface de substance luminescente (A1-D3) d'un support respectif (2a-2d) pouvant être intégrée simultanément dans la surface d'illumination (32).
  2. Dispositif d'éclairage (1 ; 21 ; 31) selon la revendication 1, la surface de substance luminescente (3a-3c ; 3a-3f ; 13a-13d ; A1-D3) pouvant être déplacée au moyen d'un pur mouvement de translation pour entrer dans la surface d'illumination (7 ; 7a, 7b ; 32).
  3. Dispositif d'éclairage (1 ; 21 ; 31) selon la revendication 1, la surface de substance luminescente (3a-3c ; 3a-3f ; 13a-13d ; A1-D3) au moyen d'un mouvement de translation et, en outre, d'un mouvement de rotation pour entrer dans la surface d'illumination (7 ; 7a, 7b ; 32).
  4. Dispositif d'éclairage (1 ; 21 ; 31) selon l'une des revendications précédentes, les motifs de rayonnement lumineux (L) présentant une forme différente, une couleur de lumière différente et/ou une distribution des couleurs différente.
  5. Dispositif d'éclairage (1 ; 21 ; 31) selon la revendication 3, au moins deux motifs de rayonnement lumineux (L) présentant une couleur de lumière blanche différente.
  6. Dispositif d'éclairage (1 ; 21) selon l'une des revendications précédentes, un motif de rayonnement lumineux (L) pouvant être généré au moyen d'au moins un faisceau de lumière primaire (P) orienté de manière stationnaire.
  7. Dispositif d'éclairage (1 ; 21) selon l'une des revendications précédentes, le motif de rayonnement lumineux (L) pouvant être généré au moyen d'un mouvement d'au moins un faisceau de lumière primaire (P).
  8. Dispositif d'éclairage (1 ; 21 ; 31) selon l'une des revendications précédentes, au moins une surface de substance luminescente (3a-3c ; 3a-3f ; 13a-13c ; A1-D3) présentant une répartition uniforme de substance luminescente.
  9. Dispositif d'éclairage (1 ; 21 ; 31) selon l'une des revendications précédentes, au moins une surface de substance luminescente (3a-3c ; 3a-3f ; 13d ; A1-D3) présentant une répartition non uniforme d'au moins une substance luminescente.
  10. Dispositif d'éclairage (1 ; 21 ; 31) selon la revendication 9, au moins une surface de substance luminescente (3a-3c ; 3a-3f ; 13a-13d ; A1-D3) comportant plusieurs substances luminescentes qui sont réparties de manière non uniforme les unes par rapport aux autres sur la surface de substance luminescente (3a-3c ; 3a-3f ; 13a-13d ; A1-D3).
EP15721634.2A 2014-05-08 2015-04-29 Génération d'un motif de rayonnement lumineux dans un champ lointain Not-in-force EP3140591B1 (fr)

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DE102014208660.4A DE102014208660A1 (de) 2014-05-08 2014-05-08 Erzeugen eines Lichtabstrahlmusters in einem Fernfeld
PCT/EP2015/059349 WO2015169665A1 (fr) 2014-05-08 2015-04-29 Génération d'un motif de rayonnement lumineux dans un champ lointain

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WO2015169665A1 (fr) 2015-11-12
US20170138556A1 (en) 2017-05-18
CN106461181A (zh) 2017-02-22
EP3140591A1 (fr) 2017-03-15
CN106461181B (zh) 2019-07-30
US9945530B2 (en) 2018-04-17
DE102014208660A1 (de) 2015-11-12

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