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EP3084499A1 - Procédé d'impression d'une structure tridimensionnelle de guidage de lumière - Google Patents

Procédé d'impression d'une structure tridimensionnelle de guidage de lumière

Info

Publication number
EP3084499A1
EP3084499A1 EP14827437.6A EP14827437A EP3084499A1 EP 3084499 A1 EP3084499 A1 EP 3084499A1 EP 14827437 A EP14827437 A EP 14827437A EP 3084499 A1 EP3084499 A1 EP 3084499A1
Authority
EP
European Patent Office
Prior art keywords
light
droplets
printing material
guiding structure
printing
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.)
Withdrawn
Application number
EP14827437.6A
Other languages
German (de)
English (en)
Inventor
Richard Van de Vrie
Joris BISKOP
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luxexcel Holding BV
Original Assignee
Luxexcel Holding BV
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 Luxexcel Holding BV filed Critical Luxexcel Holding BV
Priority to EP14827437.6A priority Critical patent/EP3084499A1/fr
Publication of EP3084499A1 publication Critical patent/EP3084499A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00663—Production of light guides
    • B29D11/00682—Production of light guides with a refractive index gradient
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0065—Manufacturing aspects; Material aspects
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/52—Encapsulations
    • H01L33/54—Encapsulations having a particular shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H01L2933/005—Processes relating to semiconductor body packages relating to encapsulations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H01L2933/0058—Processes relating to semiconductor body packages relating to optical field-shaping elements

Definitions

  • the present invention relates to a method for printing a three-dimensional structure by depositing a plurality of droplets of printing material onto a substrate.
  • a suchlike method is already known from the international patent application WO 2010/091888 A1 and can successfully be used for printing light-directing structures, for instance.
  • the object is solved by a method for printing a three-dimensional light-guiding structure, comprising the following steps: depositing multiple droplets of a first printing material, depositing multiple droplets of a second printing material and curing the deposited droplets of the first printing material and the deposited droplets of the second printing material by light irradiation using a first light source, wherein the multiple droplets of the first material and the droplets of the second material are deposed and/or cured such that the first printing material and the second printing material form an interface that changes the light properties of the light emitted by a light emitting device.
  • the light emitting device is a LED-diode or a laser such as an excimer laser.
  • the light guiding structure in particular its interface, transforms light properties such as intensity, propagation direction, light collection and/or polarization, for example.
  • the interface is arranged within the three-dimensional light-guiding structure.
  • a light guiding device may be realized according to the present invention, wherein the three-dimensional light-guiding device transforms the light properties of the light emitting device to light properties necessary for a special application.
  • the light-guiding structure forms a collector or a side emitter.
  • the first printing material and the second printing material comprise preferably a printing ink, e.g. a transparent or translucent printing ink.
  • the printing ink comprises an UV curable liquid monomer which becomes a polymer by curing. It is further conceivable that the first printing material and the second printing material have different colors.
  • a printing head for depositing the droplets of the first printing material and/or second printing material.
  • the first printing material has a first viscosity and the second printing material has a second viscosity. Consequently the droplets of the first printing material and the droplets of the second printing material may spread or diffuse, preferably on different timescales, and as a result of spreading or diffusing the first printing material and the second printing material form the interface.
  • the light illumination for curing starts whenever the first printing material and the second printing material are arranged such that the first printing material and the second printing material form the interface or at least a part of the interface.
  • the curing process has been already started before the first printing material and the second printing material form the interface or at least a part of the interface.
  • depositing the droplets defines the interface and the first printing material and/or the second printing material are cured immediately.
  • the multiple droplets of the first printing material and the multiple droplets of the second printing material are deposited simultaneously and therefore the three-dimensional light-guiding structure having an interface is generated preferably fast.
  • the droplets of the first material and the droplets of the second material are deposited into a three-dimensional mold.
  • a mold has the positive effect that even complicated outer surfaces of the three-dimensional light-guiding structure may be realized easily and fast.
  • the first printing material and/or the second printing material are arranged such that the three- dimensional light-guiding structure has a recess for a light emitting device.
  • the light emitting device may be interconnected with the three- dimensional light guiding structure in a space saving way advantageously.
  • the droplets of the first material and/or the droplets of the second material are arranged such that the three-dimensional light guiding structure is connectable to the light emitting device or a substrate comprising the light emitting device after curing.
  • the droplets of the first material and/or the droplets of the second material forming the three dimensional structure are cohesively connected by curing to the light emitting device or the substrate of the light emitting source.
  • the three-dimensional light-guiding structure is designed such that three-dimensional light-guiding structure has means for connecting such as a thread, a clip, a catch or a protuberance.
  • the means for connection are designed such that the three-dimensional light-guiding structure is connected reversibly to the light emitting device and/or to the substrate comprising the light emitting device.
  • This has the positive effect that a plurality of three-dimensional light- guiding structures, preferably different three-dimensional light-guiding structures, can be combined with one light emitting device.
  • the droplets of the first material and/or the droplets of the second material are directly deposited on a substrate, wherein the substrate comprises the light emitting device.
  • the refractive index of the first material differs from the refractive index of the second material after curing.
  • the refraction index comprises a wavelength dependent part describing the absorption of light.
  • the first and/or the second material may form a filter for light that passes the interface.
  • the refractive indices of the first printing material and the second printing material define the reflection properties of the interface. Therefore it is advantageously possible to adopt the reflection properties of the interface to that needed for the specific three- dimensional light-guiding structure.
  • the three-dimensional light-guiding structure is provided for changing the direction of light propagation.
  • the interface is realized such that the interface comprises a reflective material.
  • the interface comprises aluminum. It is herewith advantageously possible to realize a reflective surface as interface. Consequently it is possible to integrate a mirror into the three- dimensional light guiding structure by the printing method.
  • the reflective interface redirects light that is emitted by the light emitting device.
  • a layer is added to the three- dimensional structure light guiding structure, wherein the layer is arranged along the interface. It is thinkable that the layer differs from the first printing material and/or the second printing material. Furthermore it is convincible that the layer is included without depositing and/or curing. In particular it is provided that a thin layer is deposited and droplets of the first printing material and/or the second printing material are deposited next to the layer, wherein the droplets of the first printing material and the second printing material are separated by the layer. It is also thinkable that the first printing material is deposited and cured firstly and subsequently the layer is deposited along the surface of the cured first printing material.
  • the second printing material is deposited onto the layer and is cured.
  • the second printing material is deposited onto the layer such that the layer is fixed by the deposited and cured first and/or second printing material.
  • the interface between the first printing material and the second printing material is arranged such that at least a part of the light from the light emitting device is reflected by total internal reflection.
  • This has the positive effect that at least a part of the light of the light emitting device is redirected and therefore the undirected light of a LED- diode becomes more directional.
  • the combination of the LED- diode and the three-dimensional light-guiding structure according to the present embodiment is able to emit light being more directional and having a higher intensity compared to the light leaving the LED-diode.
  • the interface between the first printing material and the second printing material is arranged such that the interface is curved.
  • light from the light emitting device is scattered or refracted due to the interface such that the light of the light emitting device is not focused within the three-dimensional light-guiding structure. In that manner a hot spot and therefore damages within the three-dimensional light- guiding structure may be avoided advantageously.
  • the three-dimensional light-guiding structure forms a collimator or a side emitter, also known as batwing.
  • the first printing material and the second printing material form one or more interfaces in order to collimate or focus light leaving the three-dimensional light-guiding structure, for example.
  • the one or more interfaces are arranged such that the light leaving three-dimensional light-guiding structure is collimated.
  • the propagation direction of the light leaving the three-dimensional light-guiding structure may be tilted compared to the propagation direction of the light leaving the light emitting device. It is an advantage of the presented embodiment that the three-dimensional light-guiding structure adjusts the light leaving the light emitting device in order to optimize the light properties for specific application.
  • the droplets of the second printing material (20') are cured by light irradiation using a second light source (24).
  • the first and the second light source are individualized for the first printing and the second printing material respectively.
  • the wavelength and/or the intensity of the first light source differ from the wavelength and/or the intensity of the second light source, because the first printing material may need light for curing that is different from the light that is needed for curing the second printing material.
  • the interface and/or the first printing material at least partially form a filter, a lens, a mirror, a prism, a beam splitter, a light conductor and/or a mean for changing the polarization for the light from the light emitting device.
  • the interface forms a part of a wavelength dependent mirror, preferably a dielectric mirror.
  • the interface is a wavelength dependent filter allowing reflection or transmission of light having a specific wavelength.
  • the three- dimensional light-guiding structure may extract light from the light emitting device that is undesirable.
  • the interface acts as a (wavelength dependent) beam splitter, i.e. a specific amount of light passes the interface whereas another amount of light is reflected.
  • the interface corresponds to a ⁇ 2-plate or a ⁇ 4-plate that manipulate the polarization of light.
  • the first printing material forms a lens (a concave lens, a convex lens or a Fresnel lens) embedded in the second printing material.
  • Another subject of the present invention is a printed article comprising a three- dimensional light-guiding structure that is printed by a method described above.
  • a light-guiding structure comprises multiple printing materials having different refraction indices, wherein the multiple printing materials are arranged such, that light having a first beam profile enters the light-guiding structure and light having a second beam profile leaves the light-guiding structure, wherein a second spot size of the second beam profile is greater than a first spot size of the first beam profile and/or, a second intensity profile along the second beam profile is more homogeneous than a first intensity profile along the first beam profile and/or the light having the first beam profile propagates in a different direction than light having the second beam profile.
  • the three-dimensional light-guiding structure may be used for backlight devices using the edge lid principle for illuminating screens.
  • the printed article is a collimator or a side emitter for a light emitting device.
  • Another subject of the present invention is a light emitting device comprising a printed article according to the present invention.
  • a light emitting device that comprises a three-dimensional light-guiding structure that provides light having optimized light properties, in particular with respect to its application respectively.
  • Figure 1 illustrates a method for printing a three-dimensional light guiding structure according to a first exemplary embodiment of the present invention.
  • Figure 2 illustrates a first exemplary three-dimensional light-guiding structure printed with the first exemplary method according to the present invention.
  • Figure 3 illustrates a second exemplary three-dimensional light-guiding structure according to the present invention.
  • Figure 4a and 4b illustrate a light emitting device and a three-dimensional light- guiding structure comprising an array of reflective elements according to a third exemplary embodiment of the present invention.
  • Figure 1 shows a method of printing a three-dimensional light-guiding structure 1 according to a first exemplary embodiment of the present invention.
  • the three-dimensional guiding structure 1 is build up by droplets of a first printing material 10' and droplets of a second printing material 20'.
  • a first nozzle 1 1 drops the droplets of the first printing material 10' along a first flight direction 13 on a body 19 and that a second nozzle 21 drops the droplets of the second printing material 20' along a second flight direction 23 on the same body 19, wherein the droplets of the first printing material 10' and the droplets of the second printing 20' material are at least partially arranged next to each other.
  • the first and the second flight direction 13 and 23 are determined by gravity.
  • the first nozzle 1 1 and/or the second nozzle 21 are part of a print head of an
  • first and the second light source 14 cures the droplets of the first printing material 10' and light from a second light source 24 cures the droplets of the second material 20'.
  • first and the second light source 14 and 24 emit cw- and/or pulsed UV-light.
  • Using two different light sources 14 and 24 allows adjusting the requirements for curing to the first and second printing material 10' and 20', respectively.
  • the first printing material 10' needs light for curing that differs from that one for the second printing material 20' with respect to wavelength or intensity, for instance.
  • first printing material 10' and the second printing material 20' it is desirable to cure the first printing material 10' and the second printing material 20' differently, in particular to cure the first and the second printing material 10' and 20' on different timescales. That may be motivated by the following printing strategy: Firstly the droplets of the first material 10'are cured, secondly the droplets of the second material 20' fill vacancies left over and finally the droplets of the second material 20' are cured. In that case it should be avoided that light of the first light source 14 triggers the curing of the second printing material 20' by scatter light for example. Using at least two different light source14 and 24 having different wavelengths may circumvent such a problem provided the first and the second material 10' and 20' are chosen suitably.
  • the process of depositing the droplets 10' and 20' on the body 19 and subsequently curing the droplets 10' and 20' is repeated iteratively till the three dimensional light-guiding structure 1 is build up.
  • the body 19, which comprises the first and the second printing material 10 and 20 and which is arranged below the layer in figure 1 is also generated by such a processing.
  • the presented body 19 comprises a recess 6.
  • a recess 6 is generated by leaving areas in the layer 18 uncovered on purpose during the depositing of droplets on the body 19. It is provided that the recess 6 leaves space for a light emitting device 2, such as a LED-diode.
  • the droplets of the first material 10' and the droplets of the second material 20' are arranged such that an interface 15 is generated, wherein the interface 15 changes the light properties of the light of the light emitting device 2.
  • the interface 15 between the first printing material 10 and the second printing material 20 is made for manipulating and/or guiding the light emitted by the light emitting device 2. That means that the light of the light emitting device 2 change the light properties such as intensity, polarization and/or propagation direction due to the interface 15.
  • the light emitting device 2 and the body 19 are arranged on a substrate 3.
  • the light source was arranged on the surface of the substrate 3' at first and subsequently the bodyl 9 has been built up around the light emitting device 2.
  • the droplets of the first and/or the second printing material 10' and 20' are cohesively interconnected as a result of curing.
  • the substrate is detached after the construction of the three-dimensional light-guiding structurel has been finished. It is also provided that the extension of the layer 18 in a direction parallel to the main plane of the substrate 3 becomes greater layer by layer. As result the body 19 has a curved outer surface.
  • Figure 2 shows a first three-dimensional light-guiding structure 1 printed according to the first exemplary embodiment of the present invention, i. h. it is shown the light- guiding structure 1 after the build-up according to the method shown in figure 1 has been finished.
  • the three-dimensional light-guiding structure 1 is arranged on the substrate 3 such that the light emitting device 2 is located in the recess 6 of the light- guiding structure 1 .
  • the interface 15 is curved in the direction perpendicular to the main plane of the substrate 3.
  • Such an arrangement of the first printing material 10 and the second printing material 20 has the positive effect that the probability for generating a hot spot can be reduced due to the interface 15.
  • the light from the light emitting device 2 is not focused to one spot of the three-dimensional light-guiding structure 1 .
  • Hot spots usually are generated by light from the light emitting device 2 and influence the performance of the three-dimensional light-guiding structure 1 , negatively.
  • Another advantage of the presented first three-dimensional light-guiding structure 1 is that the three-dimensional light-guiding structure 1 has a smooth front end 9.
  • the smooth front 9 end has the advantage that the three-dimensional light-guiding structure 1 has no edges or protuberances that may damage other surrounding elements that may come in contact with the front end 9 of the light guiding structure 1 .
  • Figure 3 shows a second exemplary three-dimensional light-guiding 1 structure printed according to the present invention.
  • the three-dimensional light-guiding structure 1 is arranged on the substrate 3, wherein the light emitting device 2 is located within the recess 6 of the three-dimensional light-guiding structure 1.
  • the interface 15 is curved such that at least a part of the light 8 emitted from the light emitting device 2 is totally reflected on the interface 15.
  • the amount of light experiencing total reflection is defined by the refractive indices of the first printing material 10 and the second material 20. Especially the relation between the refractive index of the first printing material 10 and the refractive index of the second printing material 20 determinates the angle for total reflection.
  • Such an interface 15 allows directing the light emitted by the light emitting device 2 in a direction depended on the arrangement of the interface 15.
  • the three-dimensional light-guiding structure 1 forms a batwing or side emitter in collaboration with the light emitting source 2, as it is shown in figure 3.
  • Figure 4a and 4b show a three-dimensional light-guiding structure 2 and a light- guiding device V comprising each an array of reflective elements according to a third exemplary embodiment of the present invention.
  • the light emitting device 2 and the three-dimensional light-guiding structure 1 are arranged such that the light from the light emitting 2 device enters the three-dimensional light-guiding structure 1 through a surface mainly perpendicular to the main plain of the three-dimensional light-guiding structure V.
  • the three-dimensional light- guiding structure V redirects the light such that light leaves the three-dimensional light-guiding structure V along a direction perpendicular to the main plane.
  • the array of reflective elements is located inside the three-dimensional light- guiding structure V by using the method of printing the three-dimensional light-guiding structure V according to the present invention.
  • the second printing material 20 is embedded in the first printing material 10 and the generated interfaces 15 cause reflection or scattering that redirect the propagation direction of the light from the three-dimensional light-guiding structure V.
  • the elements of the array are arranged such that the generated interfaces 15 are arranged parallel to the main plane of the three-dimensional light-guiding structure V, mainly.
  • a plurality of printing materials are used for printing the three- dimensional light-guiding structure V, wherein the refractive index of each printed array element is chosen such that light leaving the three-dimensional light-guiding structure 1 is homogenously and uniformly distributed.
  • the printing material is chosen such the absorbance of the array elements next to the light emitting device 2 is smaller than the one of array elements located further away from the light emitting device 2.
  • the amount of light reaching the array elements located further away from the light emitting device 2 is still enough for generating a uniform distribution of light leaving the three-dimensional light-guiding structure. Furthermore it is provided to increase the spot size of the beam profile and change the propagation direction of the light. In an alternative embodiment it is provided to tilt the elements of the array with respect to each other as it is shown in figure 4b. Such a geometry of array elements is easily generated by the method for printing the three-dimensional light-guiding structure V according to the present invention. Tilting each element of the array has the positive effect, that array elements further away from the light emitting device 2 can reflect a greater amount of light with respect to a non-tilted array element because a greater amount of light reaches the tilted element of the array.
  • the method for printing the three-dimensional light-guiding structure 1 ' facilities arranging the first printing material 10 and the second printing material 20 such that the angle of each tilted array element can adapted flexibly for guaranteeing a uniform distribution of light leaving the three-dimensional light-guiding structure V.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)

Abstract

La présente invention concerne un procédé d'impression d'une structure (1) tridimensionnelle de guidage de lumière, comprenant les étapes consistant à déposer de multiples gouttelettes d'un premier matériau (10') d'impression ; faire durcir les gouttelettes déposées du premier matériau (10') d'impression par exposition à un rayonnement lumineux à l'aide d'une première source lumineuse (14) ; déposer de multiples gouttelettes d'un second matériau (20') d'impression et faire durcir les gouttelettes du second matériau (20') d'impression par exposition à un rayonnement lumineux à l'aide d'une seconde source lumineuse (24). Les multiples gouttelettes du premier matériau (10') et les gouttelettes du second matériau (20') sont déposées et/ou durcies de sorte que le premier matériau (10') d'impression et le second matériau (20') d'impression forment une interface (15) qui modifie les propriétés lumineuses de la lumière émise par un dispositif électroluminescent (2).
EP14827437.6A 2013-12-20 2014-12-19 Procédé d'impression d'une structure tridimensionnelle de guidage de lumière Withdrawn EP3084499A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14827437.6A EP3084499A1 (fr) 2013-12-20 2014-12-19 Procédé d'impression d'une structure tridimensionnelle de guidage de lumière

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13199249 2013-12-20
PCT/EP2014/078860 WO2015092014A1 (fr) 2013-12-20 2014-12-19 Procédé d'impression d'une structure tridimensionnelle de guidage de lumière
EP14827437.6A EP3084499A1 (fr) 2013-12-20 2014-12-19 Procédé d'impression d'une structure tridimensionnelle de guidage de lumière

Publications (1)

Publication Number Publication Date
EP3084499A1 true EP3084499A1 (fr) 2016-10-26

Family

ID=49880582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14827437.6A Withdrawn EP3084499A1 (fr) 2013-12-20 2014-12-19 Procédé d'impression d'une structure tridimensionnelle de guidage de lumière

Country Status (2)

Country Link
EP (1) EP3084499A1 (fr)
WO (1) WO2015092014A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11370185B2 (en) 2018-01-11 2022-06-28 E-Vision Smart Optics, Inc. Three-dimensional (3D) printing of electro-active lenses

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015214885A1 (de) * 2015-08-04 2017-02-09 Ist Metz Gmbh UV-Bestrahlungsaggregat zur Strahlungshärtung
DE102015115796A1 (de) * 2015-09-18 2017-03-23 Osram Opto Semiconductors Gmbh Verfahren zum Ausbilden eines oder mehrerer dreidimensionaler Objekte
WO2017196824A1 (fr) 2016-05-12 2017-11-16 Koninklijke Philips N.V. Optique de collimation sur puce
JP6850816B2 (ja) * 2016-05-12 2021-03-31 ルミレッズ ホールディング ベーフェー ダイ上平行光学系
DE102017002394A1 (de) 2016-06-17 2017-12-21 Docter Optics Se Verfahren zum Herstellen eines Vorsatzoptikarrays für einen Fahrzeugscheinwerfer
EP3515708B1 (fr) * 2016-09-22 2022-06-08 Signify Holding B.V. Procédé d'utilisation de modélisation par dépôt en fusion afin d'obtenir des surfaces de réflexion spéculaire
DE102017211659A1 (de) 2017-07-07 2019-01-10 Bayerische Motoren Werke Aktiengesellschaft Beleuchtungseinheit für ein Fahrzeug und Verfahren zu dessen Herstellung
EP3696578A1 (fr) * 2019-02-14 2020-08-19 Carl Zeiss AG Composant optique de réfraction et verre de lunettes fabriqué à partir dudit composant, procédé de fabrication d'un composant optique de réfraction, produit programme informatique, données du verre de lunettes mémorisées sur un support de données, appareil destiné à la fabrication additive d'un corps de base et verre de lunettes
DE102019107075A1 (de) 2019-03-20 2020-09-24 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für Fahrzeuge
DE102019126884A1 (de) * 2019-10-07 2021-04-08 Siteco Gmbh Beleuchtungseinrichtung mit Linse aus Silikondruck
CN112054099A (zh) * 2020-09-09 2020-12-08 福建晶安光电有限公司 一种衬底的回收工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010048968A1 (en) * 2000-02-16 2001-12-06 Cox W. Royall Ink-jet printing of gradient-index microlenses
ITMI20022085A1 (it) * 2002-10-02 2004-04-03 Fraen Corp Srl Elemento ottico associabile ad una sorgente luminosa
US20090065792A1 (en) * 2007-09-07 2009-03-12 3M Innovative Properties Company Method of making an led device having a dome lens

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015092014A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11370185B2 (en) 2018-01-11 2022-06-28 E-Vision Smart Optics, Inc. Three-dimensional (3D) printing of electro-active lenses

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