WO2018041609A1 - Module et système d'éclairage - Google Patents

Module et système d'éclairage Download PDF

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Publication number
WO2018041609A1
WO2018041609A1 PCT/EP2017/070509 EP2017070509W WO2018041609A1 WO 2018041609 A1 WO2018041609 A1 WO 2018041609A1 EP 2017070509 W EP2017070509 W EP 2017070509W WO 2018041609 A1 WO2018041609 A1 WO 2018041609A1
Authority
WO
WIPO (PCT)
Prior art keywords
leds
conversion element
radiation
module according
larp
Prior art date
Application number
PCT/EP2017/070509
Other languages
German (de)
English (en)
Inventor
Ricarda Schoemer
Jasmin Muster
Norbert Haas
Stephan Schwaiger
Original Assignee
Osram Gmbh
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 Osram Gmbh filed Critical Osram Gmbh
Publication of WO2018041609A1 publication Critical patent/WO2018041609A1/fr

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Classifications

    • 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
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the 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]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—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
    • F21S41/10—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
    • F21S41/18—Combination of light sources of different types or shapes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/20—Combination of light sources of different form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the invention is based on a module which has a plurality of light-emitting diodes (LEDs) and is used, for example, in a vehicle headlight of a vehicle.
  • the invention is based on a lighting system with a module.
  • a so-called matrix headlight for a vehicle.
  • This has a module with a plurality of LEDs arranged in a matrix. Each individual LED in the module can be controlled separately and, for example, switched on and off or dimmed.
  • ADB Adaptive Driving Beam
  • AFS Adaptive Front Lighting System
  • the object of the present invention is to provide a module that is improved over the prior art, in particular for a vehicle headlight of a vehicle. Moreover, it is an object of the invention to provide an improved lighting system with such a module.
  • the object with regard to the module is achieved according to the features of claim 1 and with regard to the lighting system according to the features of claim 14.
  • the invention is a module that is designed for example as a module or component, with a multi ⁇ number of light-emitting diodes (LEDs) are provided.
  • the light emitting diodes LED can thereby be directly emitting light-emitting diodes, or so-called phosphor-converted light-emitting diodes in which the light emitted from the light emitting diodes light, typically blue light, a stored by ⁇ phosphor, typically a-converting light into yellow phosphor falls and partly in gel Bes conversion light is converted, which together with the non-converted blue portion of white useful light results.
  • the module can ⁇ light, for example, a vehicle or be used for a vehicle headlamp of a vehicle.
  • the white point of the useful light lies in a so-called white field, which complies with the ECE R48 standard.
  • the module has at least one Konversionsele ⁇ element for a laser-activated remote phosphorus (LRP) - system in which the conversion element, also usual chumble a-converting light into yellow light ⁇ cloth, illuminated by blue laser radiation, and since ⁇ raufhin the blue excitation light partly converted into yellow light Kon ⁇ version, which then results, together with the non-converted blue component ⁇ white useful light, which also meets the ECE R48 standard for use in a vehicle headlight.
  • This conversion element is also referred to below as a LARP conversion element.
  • the inventive module may be a emittable by the LED radiation, and one of the at least one LRP conversion element austretbare a radiation ge ⁇ my same radiation source, for example, for driving generating headlight, make up.
  • a hybrid module is simply designed device technology. With this, the advantages of both systems can be easily linked. In particular, a large angular range can be illuminated with the LEDs. With the LARP conversion element of the LARP system, an angular range may be limited, but this has a high radiation intensity and / or luminance.
  • dialectli ⁇ chlay is limited a range of LEDs of a module with predetermined optical systems by the luminance of the LEDs.
  • the optical systems and / or a vehicle headlamp inserting the module would have to be designed significantly larger.
  • a range of a convergence ⁇ sion elements can thus be increased while maintaining the same space for a LRP system through the use of at least.
  • the Anre ⁇ supply radiation of the excitation beam is at least partially absorbed by the luminescent material and at least partially converted into a conversion radiation, whose wavelengths and thus spectral properties and / or color is determined by the conversion characteristics of the phosphor.
  • blue excitation radiation blue laser light
  • conversion conversion light
  • the LED or light emitting diode, at least one LED chip having one or more light-emitting diodes are, in ⁇ in the form of at least one individually packaged LED or form.
  • the at least one LED can be equipped with at least one own and / or common optics for beam guidance, for example with at least one Fresnel lens or a collimator.
  • LEDs instead of or in addition to inorganic LEDs, for example based on AlInGaN or InGaN or Alln-GaP, it is generally also possible to use organic LEDs (OLEDs, eg polymer OLEDs).
  • OLEDs organic LEDs
  • the LED chips can be directly emitting or have an upstream phosphor. It is also conceivable to provide an OLED luminous layer or a plurality of OLED luminous layers or an OLED luminous area.
  • the emission wavelengths of the LED can be in the ultraviolet, visible or infrared spectral range.
  • the LEDs can additionally be equipped with their own converter.
  • the LED chips emit white light in the standard ECE white field of the automotive industry, for example reali ⁇ Siert by a blue emitter and a yellow / green converter.
  • the vehicle may be an aircraft or a waterborne vehicle or a land vehicle.
  • the land-based vehicle may be a motor vehicle or a rail vehicle or a bicycle.
  • ⁇ Trains t the use of the vehicle headlight in ei ⁇ nem truck or passenger car or motorcycle.
  • the LEDs and the at least one conversion element are arranged on a common carrier. This is in ⁇ play, be a substrate or a printed circuit board. Such a carrier can be easily manufactured and mounted.
  • the LEDs and the at least one LARP conversion element preferably have a common light exit side for useful light. It is also conceivable that the at least one LRP conversion element and the LEDs are arranged approximately in a plane or on or in a spherical shell or on a curv ⁇ NEN level.
  • the LEDs and the at least one LARP conversion element each form a pixel.
  • the LEDs can thus ⁇ each with an LED pixel and the LARP conversion element form a LARP phosphor pixel or LARP pixels. If several LARP conversion elements are provided, these also each form a LARP pixel.
  • the module according to the invention replaces LED pixels with at least one phosphor pixel with a higher luminance. Due to the higher luminance of the LARP phosphor pixel, for example, a range of the vehicle headlight in certain angular ranges can be increased.
  • the LEDs in particular in an approximately perpendicular to the main emission axis extending Seen plane, have a different shape, whereby a radiation characteristic of the module is flexibly ausgestaltetbar.
  • a plurality of LARP conversion elements are provided, they may also have a different shape, in particular in the plane extending approximately perpendicular to the main emission axis.
  • the emission characteristic can also be influenced in a simple manner, and the LARP conversion elements can be flexibly adapted to the radiation source of the excitation radiation, for example.
  • the LEDs, in particular in the saw is approximately perpendicular to the main axis of radiation horrre ⁇ -bridging plane having a same shape
  • WO can be manufactured economically with the module.
  • the LEDs and the at least one LARP- conversion element, particularly in the approximately perpendicular to the main axis of radiation ⁇ right extending plane sailed ⁇ hen have a same shape.
  • the LARP conversion element or the LARP conversion elements can be easily adapted to the LEDs in terms of its / their shape, resulting in a simplified production.
  • the LEDs in particular in the plane extending approximately perpendicular to the main emission axis, have a different size, as a result the module, for example, can be flexibly adapted to a desired From ⁇ radiation characteristics.
  • the at least one LARP conversion element or a respective LARP conversion element is larger than a respective LED.
  • a LARP conversion element can easily replace a plurality of LEDs. To form only a small area of the module with a phosphor, it is conceivable that this is less than one per ⁇ LED stays awhile, at least one LRP conversion element or a respective LRP conversion element.
  • the LEDs have a similar size at low cost.
  • these can likewise inexpensive alternative or in addition have a moving ⁇ che size.
  • the LEDs and the at least one LARP conversion element can be adjusted in size and thus also have a sliding surface size. This leads to an extremely simple production of the module.
  • the LEDs can preferably be used for illuminating a large angle range with a tendency to lower luminance and the at least one conversion element can preferably be used for illuminating a smaller angle range with a high luminance.
  • the LEDs and / or the at least one LARP conversion element are arranged in an ordered scheme, which leads to a simple production.
  • the LEDs and / or the at least one LARP conversion element can be arranged as a single-row or multi-row matrix.
  • the module may thus be a hybrid matrix system.
  • the at least one LARP conversion element or a plurality of LARP conversion elements are arranged approximately centrally or approximately in the center of the LED configuration. This is advantageous if a high range is to be present in the center of the light distribution. In other words, this is achieved by arranging the LARP phosphor pixels as centrally as possible in the matrix system. With such a module, the range of the vehicle headlight in the central angle range can thus be increased. If the light distribution is configured asymmetrically (for example, illuminates a larger area on the outside of a vehicle), then it may be advantageous to arrange the LARP conversion element correspondingly non-centrally.
  • the LRP conversion element or a per ⁇ aims LRP conversion element from the side irradiated by the excitation radiation, from which the radiation or the useful light exits.
  • the LARP conversion element or the LARP conversion elements are preferably irradiated from the front or from the Nutzlichtseite ago.
  • the LARP conversion element or the LARP conversion elements are formed for example from a phosphor which is arranged on a reflective substrate.
  • the at least one LARP conversion element or the LARP conversion elements are irradiated from the side with excitation radiation which points away from the side from which the radiation or the useful light emerges.
  • the conversion element or the Konver ⁇ sion elements can be irradiated from the back and example, ⁇ be formed by a phosphor which is arranged on an optically transparent substrate.
  • the LED pixels are controllable, in particular switched on and off and / or dimmable.
  • the LARP phosphor pixels can be illuminated in a controlled manner, as a result of which they can also be switched on or off and / or dimmed in particular.
  • a peripheral shape, in particular in the saw is approximately perpendicular to the main axis of radiation extending plane of the LEDs and / or the at least one LRP conversion element is Example ⁇ as rectangular or square or circular or elliptical configured senförmig or has a free shape.
  • a plurality of LEDs are provided, wherein in both directions of extension of the matrix an equal number of LEDs can be provided and thus a symmetrical matrix can be formed.
  • Central or alternatively off-center of the matrix may be arranged instead of an LED or instead of a plurality of LEDs, in particular instead of four LEDs, at least one LARP conversion element. This can at least have the same size as the LEDs it replaces. If the LARP conversion element is to set four LEDs, it may, for example, have a size that is greater than the four LEDs. It is also conceivable that when one LED or several LEDs are omitted, this or these are respectively replaced by exactly one LARP conversion element. Thus, example ⁇ , four LEDs in the center or alternatively be replaced by four off-center LARP conversion elements, it is conceivable that the LARP conversion elements have a same size as the LEDs that have been replaced. By the central arrangement or alternatively the eccentric arrangement can Thus, for example, a symmetrical arrangement or al ⁇ ternatively an asymmetric arrangement can be implemented.
  • a whole series of LEDs is replaced by one or more conversion elements. This may be, for example, an edge-side row or a row extending through the middle.
  • one or more LEDs are replaced by a LARP conversion element or a plurality of LARP conversion elements adjacent to the center or adjacent to the center.
  • an illumination system in particular for a vehicle is provided which is formed for example as a mat rix ⁇ system and comprises a module according to one or more of the foregoing aspects.
  • Such an illumination system can lead to a broad distribution of light, wherein in certain areas an extremely high luminance is made possible by the at least one LARP conversion element.
  • the illumination system has a common optical device or optical or secondary optics, which images the light emitted by the LEDs and the radiation emanating from the to-least one LRP conversion element Strah ⁇ lung into the far field.
  • this optics can at least smooth or smear the "dark webs of the matrix", since the light sources are not sharply imaged into the far field not the ideal image corresponds to the positioning of the light sources with the secondary optics and that surface-structured optical elements used ⁇ to the "smearing" the image of the matrix slightly.
  • a separate Pro ⁇ jedgingsoptik is provided for the radiation emitted by the LEDs.
  • a separate projection optics can be provided for the radiation emanating from the LRP conversion element Strah ⁇ lung.
  • the projection optical system or a respective projection optics is preferably used to then Pro ⁇ jection of the radiation into the far field, in particular on one surface or on a road or on a pavement.
  • the illumination system an optical system or a primary optics such as a lens or multiple lenses and / or one or more mirrors to direct radiation of the pumping light source, which may for example be a laser diode or a high Leis ⁇ tung-LED, to lead to at least one LARP conversion element.
  • the pumping light source which may for example be a laser diode or a high Leis ⁇ tung-LED
  • a required space for the supply of the excitation radiation to the LARP conversion element can then be taken into account in the design of the vehicle ⁇ headlamp.
  • the at least one LARP conversion element excitation radiation convert it to red, yellow or green conversion radiation. It is also conceivable to convert conversion radiation into yellow / green spectral range, in order then to emit a white mixed light together with the unconverted blue laser light.
  • An ⁇ other combinations or wavelengths are also conceivable, such as excitation radiation in red, infrared (IR) or in ultraviolet (UV). It is also conceivable that the conversion radiation in addition to the colors mentioned may be blue.
  • FIG. 1 is a schematic representation of a lighting system with a module of LEDs and a LARP conversion element according to a first exemplary embodiment, Fig. 2-7 respectively in a schematic representation of a module according to an embodiment and
  • FIG. 8 shows a schematic representation of a lighting system according to another exemplary embodiment.
  • a lighting system 1 which may be, for example, a vehicle headlight.
  • This has a module 2 with a support 4, which may be, for example, a substrate or a printed circuit board.
  • a support 4 which may be, for example, a substrate or a printed circuit board.
  • LEDs On an upper surface 6 of the carrier 4, which may be in particular rectangular or square ⁇ configured lichtemit ⁇ animal diodes (LEDs) are arranged like a matrix 8, one of which is provided with a reference numeral.
  • the LEDs 8 form as a 6 x 6 matrix, the center instead of four LEDs, a LRP conversion element 10 is integrally arranged on the top ⁇ . 6
  • a radiation source or pump light source 12 is provided for irradiating the conversion element 10 with an excitation radiation.
  • the excitation radiation from the radiation source 12 is guided via an optical system or an optical fiber, which is schematically shown in Fig. 1 by a dashed arrow 14 for Konversi ⁇ onselement 10th
  • the conversion element 10 replaces acc.
  • a size of the conversion element 10 is more than four times as large compared to a respective LED 8.
  • a distance of the respective LED 8 for Konversionsele ⁇ ment 10 corresponds to approximately a distance of two be ⁇ adjacent LEDs eighth to each other.
  • LEDs have in their peak luminance of the order of 100 cd / mm 2 .
  • An average luminance can be about 80 cd / mm 2 .
  • High-power LEDs optimized for optical performance are also known, which have peak peak densities of about 200 cd / mm 2 , for example.
  • the module 4 now makes it possible for the LEDs 8 to illuminate a light field over a wide angular range, while the radiation emanating from the conversion element 10 irradiates a central region with a luminance that is increased in comparison to the LEDs 8.
  • a module 16 is shown, in which, unlike the embodiment in FIG. 1, four LARP conversion elements 18 to 24 are provided in addition to the LEDs 8. These are arranged centrally and have a size which corresponds to the size of a respective LED 8. Furthermore, the LEDs 8 and the LARP conversion elements 18 to 24 have a square design.
  • the LRP conversion elements 18 to 24 are, for example, irradiated by a common radiation source, or for a respective LARP- conversion element 18 to 24 is a respective Strah ⁇ radiation source provided.
  • FIG. 3 another embodiment of a Mo ⁇ duls 26 is shown.
  • further LARP conversion elements 28 to 38 are provided, which because a LED 8 replace.
  • the LARP conversion elements 28, 30, 36 and 38 then form a row together with the middle LARP conversion elements 22 and 24.
  • the two further LARP conversion elements 32 and 34 are disposed adjacent to the LARP conversion elements 22 and 24 and thus offset from the center.
  • LEDs 42 in this case have an approximately circular peripheral shape.
  • the mat ⁇ rixartig arranged LEDs 42 in this case form a 4 x 5 matrix.
  • two central LEDs are replaced by an elliptical LARP conversion element 44. This extends in the direction of the row.
  • a size of the Konversi ⁇ onselements 44 is larger than a size of two LEDs 42nd
  • a module 46 is shown in which the Un ⁇ ter Kunststoff to the embodiment in Fig. 4 LEDs 48 have a square, elongated configuration.
  • Four LEDs of two adjacent rows of four, medium are replaced by a LRP conversion element 50 in the center, if ⁇ is flat square with an elongated extension.
  • a size of the LARP conversion element 50 is larger than a size of four LEDs 48.
  • a module 52 in which the LEDs 54 have different shapes. They may be in ⁇ play, rectangular with different elongated extension and orientation or configured, for example approximately circular in this case.
  • a central LARP conversion element 56 likewise has a free-form surface, which is approximately rectangular in shape and has two longitudinal surfaces. Has sides of which extend in about two jagged Ab ⁇ sections.
  • Fig. 7 shows a module 58, 60 and LARP- conversion elements 62 have the LEDs in a same size and are alternately arranged in a respective row, wherein in each case adjacent rows have a mutually deviate ⁇ sponding sequence.
  • an optical device 64 is schematically illustrated in FIG.
  • optics or secondary optics or a plurality of optics are preferably provided in order to image the outgoing radiation into a far field.
  • a lighting system 66 may comprise a pumping light source or radiation source 12.
  • Wei direct ⁇ is a module 68 is provided, the LEDs 8 and has a conversion element 70th
  • the conversion element 70 is arranged eccentrically in the module 68.
  • the conversion element 70 is arranged together with the LEDs 8 approximately in a common plane which extends approximately perpendicular to the main emission axis.
  • a lens or secondary optics 72 is provided, which is used in common for the radiation of the LEDs 8 and the Konversionsele ⁇ ments 70, for example for imaging the radiation incident into the far field.
  • the radiation source 12 is provided on the side facing away from the optics 72 side of the module 68. Between the radiation Source 12 and the conversion element 70 optics or primary optics 74 is arranged. About this one to ⁇ excitation radiation is brought to a coupling surface 78 of the conversion element 70 76 that the Konversionsele- is ment pressurized to the desired excitation profile.
  • the optics 72-facing side of the Konversionsele ⁇ element 70 is a decoupling surface 80, from which the Nutz ⁇ light is coupled out.
  • the radiation source 12 is coupled on the side of the optics 72, the excitation radiation 76 in the conversion element 70.
  • the decoupling surface 80 would then additionally serve as a coupling surface.
  • the conversion element 80 is then arranged, for example, with its side facing away from the optics 72 side on a reflective support.
  • the radiation source 12, the excitation radiation 76 to ⁇ can couple according to the figure 8, on the other hand, the conversion element 70 is preferably arranged on a transmissive carrier.
  • the common optic 72 according to FIG. 8 is replaced by one or more optics for the conversion element 70 and by one or more optics for the LEDs 8.
  • the common optic 72 may be provided from a plurality of optical elements.
  • a module that includes a plurality of LEDs on ⁇ . Furthermore, the module has a conversion element. Thus, radiation may be emitted from the module via the LEDs and via the conversion element. LIST OF REFERENCE NUMBERS
  • Radiation source 12 optical system / fiber 14
  • LARP conversion element 50 Module 52 LED 54
  • LARP conversion element 62 Optical device 64 Illumination system 66 Module 68 Conversion element 70 Optics 72 Optics 74

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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)
  • Mathematical Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

La présente invention concerne un module présentant une pluralité de DEL (8; 42: 48: 54: 60). Le module présente en outre un élément de conversion (10; 18-24, 28-38; 44; 50; 56; 62). Le rayonnement issu du module peut ainsi être émis par l'intermédiaire des DEL et de l'élément de conversion.
PCT/EP2017/070509 2016-09-02 2017-08-11 Module et système d'éclairage WO2018041609A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016216624.7 2016-09-02
DE102016216624.7A DE102016216624A1 (de) 2016-09-02 2016-09-02 Modul und beleuchtungssystem

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Publication Number Publication Date
WO2018041609A1 true WO2018041609A1 (fr) 2018-03-08

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Publication number Priority date Publication date Assignee Title
DE102016103717A1 (de) * 2016-03-02 2017-09-07 Osram Opto Semiconductors Gmbh Pixellichtquelle
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